Ruby Labs

Role Description We are looking for a highly meticulous PDF Forms Operations Specialist to own and scale the forms library for one of our core D2C subscription products. You will be fully responsible for sourcing, formatting, and publishing fillable PDF forms — tax, administrative, and business documents across multiple markets — used by hundreds of thousands of customers. This is a hands-on, detail-driven role suited for someone who thrives on meticulous, repetitive work done to a consistently high standard. The operation is scaling its output 5–10x, and every form you ship is used by thousands of customers from day one. Sloppy fields, broken tab orders, and inconsistent formatting are not acceptable. The bar is high and so is the upside — performance here is directly and significantly rewarded, and strong operators take on bigger scope fast. Key Responsibilities - PDF Forms Preparation - Source official forms (tax, administrative, business) across multiple countries and markets - Format them into clean, fillable PDFs in Adobe Acrobat — field types, alignment, tab order, validations - Ensure forms render correctly across desktop and mobile and behave consistently in the product editor - Audit existing forms and continuously improve quality, fillability, and consistency - Content Library Management - Upload and manage forms in the CMS with accurate categories, metadata, and discoverability - Maintain a clean, well-organized library as output scales 5–10x - Own quality checks before publication — every form ships correct the first time - Process & Velocity - Drive weekly output targets in a high-velocity production process - Use AI tools to accelerate sourcing, formatting, and library operations - Partner with the content and product teams to prioritize new forms based on market demand Qualifications - 2+ years in content operations, document operations, or a similar hands-on production role - Hands-on expertise with Adobe Acrobat form preparation — field types, alignment, tab order, calculations, validations - Experience working in a CMS — uploading, organizing, and managing structured content - Proven track record of high-accuracy, high-volume production work - Hands-on familiarity with AI tools (ChatGPT, Claude, or similar) to boost personal efficiency Requirements - Extreme attention to detail — you catch what others miss, consistently - Genuinely comfortable with repetitive, meticulous work — this is where you do your best work, not what you tolerate - Self-directed — you drive your queue forward without needing constant direction - Organized by default — large content libraries stay clean and structured under your ownership Benefits - Remote Work Environment: Embrace the freedom to work from anywhere, anytime, promoting a healthy work-life balance. - Unlimited PTO: Enjoy unlimited paid time off to recharge and prioritize your well-being, without counting days. - Paid National Holidays: Celebrate and relax on national holidays with paid time off to unwind and recharge. - Company-provided MacBook: Experience seamless productivity with top-notch Apple MacBooks provided to all employees who need them. - Flexible Independent Contractor Agreement: Unlock the benefits of flexibility, autonomy, and entrepreneurial opportunities. Benefit from tax advantages, networking opportunities, reduced employment obligations, and the freedom to work from anywhere.

Role Description We are looking for a highly structured CMS Template Engineer to own and scale the agreement template engine for one of our core D2C subscription products. You will be fully responsible for translating legal requirements into modular content blocks and conditional logic in the CMS — building questionnaire-driven flows that generate accurate legal documents for hundreds of thousands of customers. This is a role at the intersection of structured content and legal comprehension, suited for someone who breaks complex documents into clean, modular logic. Every branching rule you build determines what a customer's final agreement contains — errors compound, so rigor is not optional. The operation is scaling template output 5–10x. The bar is high and so is the upside — performance here is directly and significantly rewarded, and strong operators take on bigger scope fast. Key Responsibilities - Template Logic & Build - Translate legal drafts from the legal team into structured CMS content models - Build modular content blocks, clauses, and conditional logic powering questionnaire-driven agreement flows - Design branching question flows — dependencies, conditions, exclusions — that generate the correct final document - Own end-to-end template accuracy from legal draft to published flow - Content Systems & Library - Manage versioning, taxonomy, and metadata across the template library - Audit and refactor existing templates for accuracy, modularity, and scalability - Coordinate with engineering when content models or integrations need updating - Process & Velocity - Drive weekly template output targets as production scales 5–10x - Use AI tools to accelerate template construction and QA - Partner with the legal team to clarify requirements and close review loops fast Qualifications - 2+ years in technical content management, content operations, document automation, or a similar hands-on role - Strong hands-on experience with CMS platforms — content models, collections, fields, relationships, conditional logic, versioning - Ability to read and work fluently with legal documents — clauses, conditions, and how they interact (formal legal training not required) - Demonstrated ability to break complex documents or flows into modular blocks and conditional rules - Hands-on familiarity with AI tools (ChatGPT, Claude, or similar) to boost personal efficiency Requirements - Structured thinker — you see systems and logic where others see walls of text - Extreme attention to detail — a wrong condition in a legal template compounds silently - Self-directed — you drive templates from draft to published without hand-holding - Fast but rigorous — velocity never comes at the cost of accuracy under your ownership Benefits - Remote Work Environment: Embrace the freedom to work from anywhere, anytime, promoting a healthy work-life balance. - Unlimited PTO: Enjoy unlimited paid time off to recharge and prioritize your well-being, without counting days. - Paid National Holidays: Celebrate and relax on national holidays with paid time off to unwind and recharge. - Company-provided MacBook: Experience seamless productivity with top-notch Apple MacBooks provided to all employees who need them. - Flexible Independent Contractor Agreement: Unlock the benefits of flexibility, autonomy, and entrepreneurial opportunities. Benefit from tax advantages, networking opportunities, reduced employment obligations, and the freedom to work from anywhere.

Role Description RubyLabs is looking for a Superhero Animator to join our creative squad and own premium, web-native animations for one of our fastest-growing portfolio products — an online sweepstakes social casino. We need "wow" quality, at a daily production cadence, built in Rive as interactive, state-driven animations (not pre-rendered video). This is a senior, high-ownership role with room to grow into a leadership role for a small animation pod as the team scales. Key Responsibilities - Design and animate character mascots (idle loops, reactions, win celebrations) that feel alive and premium. - Build hero-section animations combining characters with animated environments (coins, slot machines, effects). - Rig in Rive using state machines so animations react live to real product events. - Run a daily/weekly production pipeline for new offer animations across segments. - Partner with dev on responsive embedding and with design on the avatar art pipeline. Qualifications - 4+ years of experience in the online casino / iGaming space. - 3+ years of experience with online casino & online gaming animation and motion designs production with characters that are specific to the online casino themes. - Highly proficient with AI animation tools (e.g., Viggle, Kling, Runway) for rapid concepting and production — be ready to walk through a real project where you used one in production, including where it broke down. - Experience running high-intensity motion production and delivering results fast. - Experience of a highly professional studio-level motion production design. Nice to have - Hands-on production experience in Rive (or Spine/DragonBones with fast ramp-up ability), with character animation in your portfolio. - Experience building reusable rigged character skeletons with multiple states. - Particle/VFX experience (coin bursts, win effects). Location Ruby Labs operates within the CET (Central European Time) zone. Applicants from any country are welcome to apply for the position as long as they are located within approximately ± 4 hours of CET. This ensures optimal collaboration and communication during working hours. Benefits - Remote Work Environment: Embrace the freedom to work from anywhere, anytime, promoting a healthy work-life balance. - Unlimited PTO: Enjoy unlimited paid time off to recharge and prioritize your well-being, without counting days. - Paid National Holidays: Celebrate and relax on national holidays with paid time off to unwind and recharge. - Company-provided MacBook: Experience seamless productivity with top-notch Apple MacBooks provided to all employees who need them. - Flexible Independent Contractor Agreement: Unlock the benefits of flexibility, autonomy, and entrepreneurial opportunities. Benefit from tax advantages, networking opportunities, reduced employment obligations, and the freedom to work from anywhere.

Role Description We are seeking a Billing Data Analyst to join our Billing and Data team. You will play a key role in analyzing financial performance, billing behavior, risk trends, and support operations. Your work will help drive better decision-making, reduce financial risks, and improve billing efficiency across all products. This role combines analytical rigor, statistical thinking, and cross-functional collaboration. - Monitor, analyze, and report on key billing and support performance indicators and emerging trends. - Build and maintain data pipelines to ensure accurate, timely, and reliable data delivery. - Apply statistical methods to project scenarios, assess “what-if” outcomes, and anticipate financial risks. - Run A/B tests and experiments to evaluate billing and support strategies. - Collaborate with cross-functional teams (Billing, Support, Finance, Product, Marketing) to align processes with risk-mitigation goals. - Analyze the impact of marketing and product changes on billing outcomes, risk behavior, and customer support metrics. - Provide actionable recommendations to improve billing performance and reduce disputes, churn, and operational inefficiencies. - Document analyses, workflows, and data logic to ensure clarity and consistency. Qualifications - Bachelor’s degree in Data Science, Statistics, Computer Science, Economics, or a related field. - Experience as a Data Analyst, ideally within fintech, subscription products, billing, or customer support. - Strong SQL skills. - Experience with popular BI tools such as Tableau, Looker, or similar. - Experience with Python or R. - Solid understanding of statistical analysis, forecasting, and scenario modeling. - Experience running A/B tests and interpreting experiment results. - Excellent problem-solving skills, attention to detail, and ability to work in a fast-paced environment. - Strong communication skills, with the ability to explain findings to both technical and non-technical stakeholders. - Curiosity, ownership mindset, and the discipline to maintain high-quality data work. Requirements - Experience with BigQuery, ClickHouse, or any cloud data warehouse. - Basic Python knowledge for data cleaning or simple analysis. - Exposure to subscription businesses or payment systems. - Understanding of disputes, chargebacks, declines, or fraud signals. - Familiarity with DBT or data quality frameworks. Benefits - Remote Work Environment: Embrace the freedom to work from anywhere, anytime, promoting a healthy work-life balance. - Unlimited PTO: Enjoy unlimited paid time off to recharge and prioritize your well-being, without counting days. - Paid National Holidays: Celebrate and relax on national holidays with paid time off to unwind and recharge. - Company-provided MacBook: Experience seamless productivity with top-notch Apple MacBooks provided to all employees who need them. - Flexible Independent Contractor Agreement: Unlock the benefits of flexibility, autonomy, and entrepreneurial opportunities. Benefit from tax advantages, networking opportunities, reduced employment obligations, and the freedom to work from anywhere.

Role Description As a Lead iOS Engineer , you will own the technical direction of our iOS platform, set engineering standards, and mentor a team of engineers while remaining hands-on with the codebase. You will drive architecture decisions, ensure scalability and performance, and partner with product and cross-functional leadership to shape the mobile roadmap. - Define and own the technical vision, architecture, and long-term roadmap for the iOS platform. - Lead, mentor, and grow a team of iOS engineers; set coding standards and review practices. - Make high-impact architectural decisions and drive modularization/scalability across the codebase. - Own CI/CD strategy, release management, and deployment reliability. - Partner with product and design leadership to translate business goals into technical execution. - Establish observability, performance budgets, and quality gates. - Remain hands-on: contribute to critical features and complex problem-solving. Qualifications - 8+ years of iOS development experience, including 2+ years in a lead or tech-lead capacity. - Proven track record shipping and scaling B2C subscription-based apps at significant user volume. - Deep expertise in Swift, Swift Concurrency, and advanced language features; ability to set idiomatic standards across a team. - Mastery of StoreKit 2, subscription monetization architecture, entitlement/receipt validation at scale, paywall experimentation, and pricing/offer strategy. - Strong architectural leadership: large-scale modular architectures, dependency management (SPM), design systems, and cross-team API contracts. - Experience owning CI/CD at scale (Xcode Cloud, Fastlane, GitHub Actions/Bitrise), automated release trains, phased rollouts, and code-signing automation. - Deep performance engineering: app startup, memory optimization, rendering pipeline, and Instruments-driven diagnosis. - Comprehensive testing strategy ownership: unit, UI, snapshot, and contract testing with meaningful coverage goals. - Experience integrating AI-driven product features and championing AI-assisted development practices across a team. - Strong technical leadership, mentorship, stakeholder communication, and cross-functional collaboration skills. Benefits - Remote Work Environment: Embrace the freedom to work from anywhere, anytime, promoting a healthy work-life balance. - Unlimited PTO: Enjoy unlimited paid time off to recharge and prioritize your well-being, without counting days. - Paid National Holidays: Celebrate and relax on national holidays with paid time off to unwind and recharge. - Company-provided MacBook: Experience seamless productivity with top-notch Apple MacBooks provided to all employees who need them. - Flexible Independent Contractor Agreement: Unlock the benefits of flexibility, autonomy, and entrepreneurial opportunities. Benefit from tax advantages, networking opportunities, reduced employment obligations, and the freedom to work from anywhere.

Role Description As a Lead Android Engineer, you will own the technical direction of our Android platform, set engineering standards, and mentor a team of engineers while remaining hands-on with the codebase. You will drive architecture decisions, ensure scalability and performance, and partner with product and cross-functional leadership to shape the mobile roadmap. Key Responsibilities - Define and own the technical vision, architecture, and long-term roadmap for the Android platform. - Lead, mentor, and grow a team of Android engineers; set coding standards and review practices. - Make high-impact architectural decisions and drive modularization/scalability across the codebase. - Own CI/CD strategy, release management, and deployment reliability. - Partner with product and design leadership to translate business goals into technical execution. - Establish observability, performance budgets, and quality gates. - Remain hands-on: contribute to critical features and complex problem-solving. Qualifications - 8+ years of Android development experience, including 2+ years in a lead or tech-lead capacity. - Proven track record shipping and scaling B2C subscription-based apps at significant user volume. - Deep expertise in Kotlin, coroutines/Flow, and advanced language features; ability to set idiomatic standards across a team. - Mastery of Google Play Billing at scale, subscription monetization architecture, entitlement validation, RTDN pipelines, paywall experimentation, and pricing/offer strategy. - Strong architectural leadership: large-scale multi-module Gradle architectures, build optimization, design systems, and cross-team API contracts. - Experience owning CI/CD at scale (GitHub Actions, Bitrise, Gitlab CI), automated release trains, staged rollouts, and signing/key management. - Deep performance engineering: startup optimization, Baseline Profiles, memory/jank diagnosis, and R8/ProGuard optimization. - Comprehensive testing strategy ownership: unit, UI (Compose/Espresso), and integration testing with meaningful coverage goals. - Experience integrating AI-driven product features and championing AI-assisted development practices across a team. - Strong technical leadership, mentorship, stakeholder communication, and cross-functional collaboration skills. Benefits - Remote Work Environment: Embrace the freedom to work from anywhere, anytime, promoting a healthy work-life balance. - Unlimited PTO: Enjoy unlimited paid time off to recharge and prioritize your well-being, without counting days. - Paid National Holidays: Celebrate and relax on national holidays with paid time off to unwind and recharge. - Company-provided MacBook: Experience seamless productivity with top-notch Apple MacBooks provided to all employees who need them. - Flexible Independent Contractor Agreement: Unlock the benefits of flexibility, autonomy, and entrepreneurial opportunities. Benefit from tax advantages, networking opportunities, reduced employment obligations, and the freedom to work from anywhere.

Role Description We’re looking for a Lead Billing Data Analyst (Billing, Payments & Subscription Analytics) to own the data strategy behind our subscription billing operations. This is a hands-on leadership role: you’ll build analyses and pipelines that improve billing performance, while also managing and mentoring a team of analysts. Key Responsibilities - Analytics & technical work - Monitor, analyze, and report on billing and support performance metrics (payments, renewals, refunds, disputes/chargebacks), and surface emerging trends. - Build and maintain data pipelines that deliver accurate, timely, and reliable billing data. - Apply statistical methods to model scenarios, run “what-if” analyses, and anticipate financial risk. - Design and run A/B tests and experiments to evaluate billing and support initiatives. - Analyze the impact of product, marketing, and pricing changes on billing outcomes, risk behavior, and customer support metrics. - Build and maintain dashboards and visual reporting that provide clear, real-time visibility into billing health and support performance. - Turn insights into recommendations that reduce disputes, churn, and operational inefficiencies. - Document analyses, workflows, definitions, and data logic to ensure clarity, reproducibility, and consistency. - Leadership & collaboration - Lead, mentor, and grow a team of data analysts: set expectations, coach on methodology, and ensure high-quality output. - Own the team’s intake and prioritization process; manage task flow and delivery timelines against business needs. - Uplevel the team’s billing domain knowledge and analytical/technical skills. - Partner cross-functionally with Billing, Support, Finance, Product, and Marketing to align metrics, definitions, and processes with risk-mitigation goals. Qualifications - Deep subscription billing expertise: substantial experience with payments, renewals, refunds, disputes/chargebacks/TC40 in a recurring-revenue business (non-negotiable). - Advanced SQL: complex joins, window functions, incremental logic, and performance-aware query writing. - Data visualization: proficiency with Omni, Tableau, Power BI, or similar tools to build dashboards and communicate insights clearly. - People leadership: experience setting priorities, distributing work, reviewing output, and being accountable for a team’s results. - Statistical & analytical rigor: forecasting, experiment design, and translating ambiguous business questions into structured analysis. - Billing platforms / processors: familiarity with tools such as Stripe, Braintree, Nuvei, or similar. - Strong communication: ability to explain complex findings to both technical and non-technical stakeholders. - Cross-functional collaboration: track record of influencing decisions with data across multiple departments. Nice to have - Python and/or modern analytics tooling (dbt, Airflow, or similar). - Experience building and maintaining ETL/ELT pipelines for billing or financial data. - Risk analysis or fraud-adjacent experience in billing contexts. - Advanced visualization techniques (cohorts, funnels, anomaly detection dashboards). Location Ruby Labs operates within the CET (Central European Time) zone. Applicants from any country are welcome to apply for the position as long as they are located within approximately ± 4 hours of CET. This ensures optimal collaboration and communication during working hours. Benefits - Remote Work Environment: Embrace the freedom to work from anywhere, anytime, promoting a healthy work-life balance. - Unlimited PTO: Enjoy unlimited paid time off to recharge and prioritize your well-being, without counting days. - Paid National Holidays: Celebrate and relax on national holidays with paid time off to unwind and recharge. - Company-provided MacBook: Experience seamless productivity with top-notch Apple MacBooks provided to all employees who need them. - Flexible Independent Contractor Agreement: Unlock the benefits of flexibility, autonomy, and entrepreneurial opportunities. Benefit from tax advantages, networking opportunities, reduced employment obligations, and the freedom to work from anywhere. Interview Process After submitting your application, we conduct a thorough review which typically takes 3 to 5 days, but may occasionally take longer due to the volume of applications received. If we see a potential fit, we proceed with the following steps: - Recruiter Screening (40 minutes) - Technical Interview (90 minutes) - Final Interview (60 minutes) Life at Ruby Labs At Ruby Labs, we move fast, aim high, and expect the same from our team. We’re not here to play small—we’re here to build, grow, and win. That means we look for people who are ambitious, driven, and ready to give their best every single day. This is a place for individuals who thrive under pressure, embrace challenges, and see opportunity in every obstacle. If you’re hungry to achieve, motivated by impact, and want to grow at the speed of your own ambition, Ruby Labs offers the platform to make it happen. Here, effort is matched with reward. We recognize those who go all in and deliver results, and we create space for people who want more—more responsibility, more growth, and more success.

Role Description As a Senior Android Engineer , you will play a key role in developing and maintaining our mobile app, ensuring high performance, scalability, and a seamless user experience. You will collaborate closely with the product manager and fellow developers to bring new features to life and continuously optimize our app. Your expertise in Kotlin and Android development best practices will be instrumental in driving innovation and maintaining our position as a leader in the Play Store. Key Responsibilities - Develop and maintain a high-quality Android application with a focus on performance, UI, and UX. - Take ownership of development processes, ensuring clean, maintainable, and scalable code. - Work with cross-functional teams to design, develop, and launch new features. - Implement CI/CD pipelines and deployment best practices. - Conduct code reviews and enforce coding standards. - Profile and optimize app performance (memory, jank, startup, battery, APK/AAB size). - Stay up to date with the latest Android development trends and integrate relevant advancements. Qualifications - 5+ years of professional Android development experience. - Experience with B2C mobile apps built on subscription business models. - Expert proficiency in Kotlin (coroutines, Flow, sealed classes, generics, extension functions). - Strong command of Google Play Billing Library v7+ and subscription lifecycle: purchase flows, entitlement management, Real-time Developer Notifications (RTDN), and server-side validation (with RevenueCat or a custom equivalent). - Deep understanding of Jetpack Compose and the Android View system, including interoperability and Compose state management (remember, State, StateFlow collection). - Strong grasp of modern Android architecture: MVVM/MVI, Clean Architecture, unidirectional data flow, and modularization (Gradle multi-module). - Proficiency with Jetpack libraries (ViewModel, Navigation, Room, WorkManager, DataStore) and Dependency Injection (Hilt/Dagger). - Experience with CI/CD (GitHub Actions, Bitrise, or Gitlab CI), Gitflow, and Play Console / internal-track distribution. - Automated testing experience: JUnit, Espresso, Compose UI testing, Turbine, and MockK. - Strong debugging and profiling skills with Android Studio Profiler, LeakCanary, and Baseline Profiles. - Experience integrating AI-driven features and/or AI-assisted development workflows. Benefits - Remote Work Environment: Embrace the freedom to work from anywhere, anytime, promoting a healthy work-life balance. - Unlimited PTO: Enjoy unlimited paid time off to recharge and prioritize your well-being, without counting days. - Paid National Holidays: Celebrate and relax on national holidays with paid time off to unwind and recharge. - Company-provided MacBook: Experience seamless productivity with top-notch Apple MacBooks provided to all employees who need them. - Flexible Independent Contractor Agreement: Unlock the benefits of flexibility, autonomy, and entrepreneurial opportunities. Benefit from tax advantages, networking opportunities, reduced employment obligations, and the freedom to work from anywhere.

Role Description We're a fast-growing consumer AI company giving millions of users access to the world's leading AI models — chat, image, and video generation — under one subscription. We run one of the biggest Google Ads accounts in the world, alongside a major Microsoft Ads (Bing) presence, across 40+ countries and 30+ languages. We work AI-first: our campaigns are researched, built, and optimized with the help of AI agents (Claude), directed by a human expert. We're looking for that expert. You'll own the performance of our Google Ads account end to end — structure, keywords, ads, bids, compliance, and growth — using Claude as your daily co-pilot for research, audits, and campaign work. Key Responsibilities - Scaling: Grow profitable spend across countries, products, and devices; find untapped markets and launch them; manage budgets and targets against real revenue and payback goals. - Keyword research: Build and maintain large-scale keyword systems; discover new opportunities, validate demand, organize keywords into clean clusters (brand vs. generic AI searches), and ensure every new AI model release is covered from day one. - Ad strength & copy: Keep ad quality high across the whole account; ads that mirror what people actually search, strong Ad Strength scores, and quality localization in 30+ languages. - Campaign structure: Design and maintain a clean, scalable account; well-themed ad groups, sensible country tiers, no dead or duplicated inventory, and consistent naming across a very large campaign portfolio. - Compliance: Solid working knowledge of Google Ads policies; trademark rules, misleading-claims policy, and how to prevent — and if needed, appeal — account-level restrictions like Limited Ad Serving. - Bid management: Set and continuously adjust CPA/ROAS targets based on real revenue data per country, device, and campaign — not gut feeling. - Working with AI: Use Claude and AI workflows daily to research keywords, generate and review ad copy, audit the account, and automate the repetitive parts of the job. - Monitoring & reporting: Track performance the right way; spot problems early, and quickly figure out the root cause when numbers move. Qualifications - 5+ years managing large, international Google Ads search accounts. - Claude expert — you know Anthropic's models and products well, use them daily, and understand the AI tools market as a practitioner, not just an advertiser. - Strong AI skills — comfortable working with AI assistants and agent-based workflows; you see AI as a force multiplier, not a threat. - Very solid understanding of Google compliance — trademark policy, ad review, and account-level enforcement, including recovery from restrictions. - Data-driven decision maker — comfortable with revenue metrics, CPA/ROAS economics, and payback thinking. - Structured, high-agency operator: proposes with evidence, moves fast, executes carefully, documents everything. Nice to have - Microsoft Ads (Bing) experience. - Managing Google Ads for AI products. - Subscription / consumer product acquisition background. - Basic technical skills (spreadsheet power user, some SQL or scripting). Location Ruby Labs operates within the CET (Central European Time) zone. Applicants from any country are welcome to apply for the position as long as they are located within approximately ± 4 hours of CET. This ensures optimal collaboration and communication during working hours. Benefits - Remote Work Environment: Embrace the freedom to work from anywhere, anytime, promoting a healthy work-life balance. - Unlimited PTO: Enjoy unlimited paid time off to recharge and prioritize your well-being, without counting days. - Paid National Holidays: Celebrate and relax on national holidays with paid time off to unwind and recharge. - Company-provided MacBook: Experience seamless productivity with top-notch Apple MacBooks provided to all employees who need them. - Flexible Independent Contractor Agreement: Unlock the benefits of flexibility, autonomy, and entrepreneurial opportunities. Benefit from tax advantages, networking opportunities, reduced employment obligations, and the freedom to work from anywhere. Interview Process After submitting your application, we conduct a thorough review which typically takes 3 to 5 days, but may occasionally take longer due to the volume of applications received. If we see a potential fit, we proceed with the following steps: - Recruiter Screening (40 minutes) - Technical Interview (60 minutes) - Final Interview (30 minutes) Life at Ruby Labs At Ruby Labs, we move fast, aim high, and expect the same from our team. We’re not here to play small—we’re here to build, grow, and win. That means we look for people who are ambitious, driven, and ready to give their best every single day. This is a place for individuals who thrive under pressure, embrace challenges, and see opportunity in every obstacle. If you’re hungry to achieve, motivated by impact, and want to grow at the speed of your own ambition, Ruby Labs offers the platform to make it happen. Here, effort is matched with reward. We recognize those who go all in and deliver results, and we create space for people who want more—more responsibility, more growth, and more success.

Role Description As a Senior iOS Engineer , you will play a key role in developing and maintaining our mobile app, ensuring high performance, scalability, and a seamless user experience. You will collaborate closely with the product manager and fellow developers to bring new features to life and continuously optimize our app. Your expertise in Swift and iOS development best practices will be instrumental in driving innovation and maintaining our position as a leader in the App Store. - Develop and maintain a high-quality iOS application with a focus on performance, UI, and UX. - Take ownership of development processes, ensuring clean, maintainable, and scalable code. - Work with cross-functional teams to design, develop, and launch new features. - Implement CI/CD pipelines and deployment best practices. - Conduct code reviews and enforce coding standards. - Profile and optimize app performance (memory, launch time, rendering, battery). - Stay up to date with the latest iOS development trends and integrate relevant advancements. Qualifications - 5+ years of professional iOS development experience. - Experience with B2C mobile apps built on subscription business models. - Expert proficiency in Swift (protocol-oriented design, generics, value semantics, async/await, structured concurrency, actors). - Strong command of StoreKit 2 and subscription lifecycle: purchase flows, receipt/transaction validation, entitlement management, offer codes, and server-to-server notifications (with RevenueCat or a custom equivalent). - Deep understanding of UIKit and SwiftUI, including interoperability, when to use each, and SwiftUI state management (@State, @Observable, @Environment). - Solid grasp of architecture patterns (MVVM, Clean Architecture, Composable Architecture) and modularization for large codebases (SPM modules, feature isolation). - Experience with Combine and/or Swift Concurrency for reactive and async data flows. - Proficiency with CI/CD (Xcode Cloud, Fastlane, Bitrise, or GitHub Actions), Gitflow, code signing/provisioning automation, and TestFlight distribution. - Automated testing experience: XCTest, XCUITest, snapshot testing, and dependency injection for testability. - Strong debugging and profiling skills with Instruments (Time Profiler, Allocations, Leaks, Hangs). - Experience integrating AI-driven features and/or AI-assisted development workflows. - Familiarity with analytics, crash reporting, and A/B testing / feature-flag tooling. Requirements - Location: Ruby Labs operates within the CET (Central European Time) zone. Applicants from any country are welcome to apply for the position as long as they are located within approximately ± 4 hours of CET. Benefits - Remote Work Environment: Embrace the freedom to work from anywhere, anytime, promoting a healthy work-life balance. - Unlimited PTO: Enjoy unlimited paid time off to recharge and prioritize your well-being, without counting days. - Paid National Holidays: Celebrate and relax on national holidays with paid time off to unwind and recharge. - Company-provided MacBook: Experience seamless productivity with top-notch Apple MacBooks provided to all employees who need them. - Flexible Independent Contractor Agreement: Unlock the benefits of flexibility, autonomy, and entrepreneurial opportunities. Benefit from tax advantages, networking opportunities, reduced employment obligations, and the freedom to work from anywhere.