Fullstack Developer (Ruby on Rails + React) Location: Remote (LATAM, Europe, or Canada) Compensation: Up to USD48/hour (contract) Engagement: Full-time contractor About our Client Our client is a fast-growing technology company building data-driven financial solutions that simplify and optimize business operations. We develop secure, scalable systems that empower financial teams to work smarter — leveraging automation, transparency, and real-time data insights. We’re now looking for a Fullstack Developer with a strong backend focus to join our distributed engineering team. You’ll work on the core architecture that powers our platform, helping to scale our microservices and integrate modern financial technologies. What You’ll Do Build and maintain backend services and APIs using Ruby on Rails , integrated with React frontends. Design and implement microservices architectures that ensure scalability and reliability. Collaborate with product and data teams to integrate financial workflows and data pipelines. Optimize system performance, ensure code quality, and maintain robust testing practices. Contribute to architectural discussions and guide decisions around scalability and security. What We’re Looking For Must-Have Skills 5+ years of experience in fullstack development. Advanced proficiency in Ruby on Rails and React.js . Strong focus on backend systems , APIs, and microservices. Experience with relational databases (e.g., PostgreSQL, MySQL). Excellent understanding of version control (Git) and CI/CD best practices. Fluent English communication (written and spoken). Nice-to-Have Background in finance, fintech, or data-heavy products . Experience with containerization (Docker, Kubernetes). Familiarity with cloud platforms (AWS, GCP, or Azure). Prior work in a remote, distributed team environment. Why Join Competitive hourly rate (up to USD48/hr ). Work fully remote from LATAM, Europe, or Canada . High-impact environment where your code directly improves financial workflows. Collaborative, product-driven culture with strong engineering ownership. Interested? Apply now or reach out to our team directly — we’d love to learn more about your background and share details about the project.

COMPANY At 0x, our mission is to "Create a Tokenized World Where All Forms of Value Can Flow Freely". We deliver this to web3 builders with a delightfully simple suite of developer APIs that provide faster trading, better prices, and superior user experience. Founded in 2017, we’ve processed over 211M+ transactions and $180B+ in trading volume from users trading on Matcha, Coinbase Wallet, Robinhood Wallet, Phantom, Rainbow, DefiLlama, MetaMask, Zerion, Zapper, and many more. Our investors include Greylock Partners, Pantera Capital, and Jump Crypto. When you join 0x, you’ll become part of a veteran team of crypto builders who know the importance of code quality, team cohesion, and a culture of learning. Matcha is a DEX aggregator, built by 0x. With over 5 million tokens indexed across 9 blockchains, the decentralized exchange provides aggregated liquidity from +100 sources and the most efficient trade execution through smart routing. Matcha offers swaps, limit orders and cross chain trades, having enabled over $62B volume and 3.5M+ trades as the first consumer-facing product by the 0x team. 0x platform is developers' one-stop shop to build financial products on crypto rails. 0x empowers hundreds of teams and developers with essential web3 tools to enable faster trading, better prices and superior UX. Our suite of APIs has processed over 60M+ million transactions and $133B+ in volume from more than 6 million users trading on apps like Coinbase Wallet, Robinhood Wallet, Metamask, Zerion, Zapper, and more. Matcha API Tech Stack We care far more that someone has solid fundamentals, strong learning agility, and is an overall good human. That said, we’re excited about the rapidly evolving tech we’re building on. It includes: TypeScript + Node/Express (core stack) Rust AWS Cloud Services (Kubernetes, Kafka, Postgres, Redis, OpenSearch, etc) Grafana LGTM Observability Stack Next.js Responsibilities - Your Mission Be an individual contributor on projects as well as lead technical projects of moderate to high complexity Offer valuable insights as a peer when reviewing designs and performing code reviews Create high quality, secure, clean code Improve the way we build and deliver software Consistently ship Coach and mentor other engineers and generally up-level the team Empathize with our customers and users Requirements - Who you are Benefits The base salary range for this position is $95,000 - $230,000 + equity + ZRX tokens + benefits. Within the range, individual pay is determined by job-related skills, experience, location, business needs, and candidate preferences between the different compensation elements. Comprehensive insurance (medical/dental/vision/life/disability) for U.S.-based employees — 100% of base plan covered for you and dependents 401k and FSA for U.S.-based employees Monthly mobile phone bill, wellness, and pre-tax transportation expense Covered mental health benefits (included professional therapy sessions) A supportive remote environment Lunch reimbursement for all employees across the globe! Stipend for your ideal remote / WFH set-up: headphones, and any other work gear you may need 12-week paid parental leave Great office conveniently located in the SF Financial District for those in the region! Flexible vacation: Take time when you need it (and we really mean it!) 0x and its associated entities are dedicated to fostering diversity, inclusion, and belonging in its teams and workforce, and are proud to be equal opportunity employers. 0x does not make employment or hiring decisions on the basis of race, color, creed, religion, sex (including those who are pregnant or have given birth), sexual orientation, gender, gender expression or identity, age, disability, medical condition, genetic information, military or veteran status, marital status, pregnancy, citizenship, national origin, immigration or citizenship status, political affiliation, or any other basis that is protected by applicable local, state, or federal laws. This includes not making such decisions based on the status itself, as well as any associations, perceptions, and assumptions made regarding these statuses. 0x will also consider qualified applicants with arrest and conviction records in a way that is consistent with San Francisco’s Fair Chance Ordinance and similar local laws. Our commitment to equal employment opportunity extends to ensuring that all applicants and employees can perform to their fullest potential, including through obtaining reasonable accommodations when necessary.

SigNoz is a global open source project with users in 30+ countries. We are building an open-source application monitoring which helps developers monitor their applications and troubleshoot problems, quickly. We have crossed 23000+ Github stars , 6000+ members in the slack community and 150+ contributors. Why us? Opportunity to work in a global dev infra product Work on an open source product. Engage with the community. Evangelise the product. Backed by YC and some of the prominent VCs in the US. Fully Remote Who would be a good fit 1+ yrs experience as a software engineer. Can get your hand dirty in codes in different languages and deployment methods (think k8s, docker). Not necessary to have deep knowledge, but enough to set up some sample apps Active in dev communities like Github or different dev focused slack communities. Open source contributions are a big plus. Understanding of cloud native ecosystem, kubernetes, OpenTelemetry (plus) Curious and having a get stuff done attitude Interest in startups. If you are an ex-entrepreneur, we would love to chat with you What you will be working on Create dev focused blogs or videos, speak at dev-facing conferences Organize meetup / present in meetups & conferences about SigNoz Help users out in setting up SigNoz and understand their usecases Engage in online dev communities and present the product in online/in-person meetups

Life at Plume At Plume, we believe that technology isn't about moving faster, it's about making life’s moments better. Which is why we’ve built the world's first, and only, open and hardware-independent service delivery platform for smart homes, small businesses, enterprises, and beyond. Our SaaS platform uses WiFi, advanced AI, and machine learning to create the future of connected spaces—and human experiences—at massive scale. We now deliver services to over 60 million locations globally and have managed over 3 billion devices on our platform. We’re expanding rapidly, pioneering a new category, and we achieved our Series F funding in just four years. Our customers include many of the world's largest Internet Service Providers (ISPs) who look to Plume to help them evolve their smart home offerings while gleaning insights from their own data. With a bias for action and a love for being trailblazers, the team at Plume embodies a combination of relentless curiosity and imaginative innovation. We challenge ourselves to think in ways that other companies don't, work to do what should be done (rather than what can), and if we can’t do it exceptionally well, we don’t do it. It’s how we've assembled a team of world-class builders, thinkers, and doers. And it’s how we’re reinventing what’s possible every day. Location Requirement: Applicants must be based in the Eastern Standard Time (EST) zone to be considered for this role. Responsibilities API Development: Design, implement, and maintain RESTful and gRPC APIs powering internal and external applications. Cloud Microservices: Architect and deploy scalable microservices in AWS/GCP/Azure using Kubernetes and modern DevOps practices. Data Pipelines: Build real-time and batch data pipelines, ensuring data accuracy, performance, and observability (EMR on EKS). Collaboration: Partner with cross-functional squad members to deliver features end-to-end, from concept to production. System Reliability: Optimize services for scalability, resilience, and high availability. Engineering Excellence: Contribute to architecture discussions, enforce coding standards, and drive best practices in CI/CD, testing, and monitoring. Security: Embed security and compliance into backend systems and data workflows. Qualifications Strong proficiency in Scala, Go, or Java (experience with multiple is a plus). Proven experience with distributed systems, microservices, and event-driven architectures . Fundamental understanding of computer networking (including Wi-Fi), operating system , and database Hands-on expertise in cloud platforms (AWS, GCP, or Azure) and container orchestration (Kubernetes, Docker). Familiarity with data engineering (ETL pipelines, real-time streaming with Kafka/Pulsar, batch processing frameworks). Experience with SQL and NoSQL databases (e.g., PostgreSQL, MongoDB, Cassandra, DynamoDB). Solid knowledge of CI/CD pipelines, testing frameworks, observability tools (Grafana, Prometheus, ELK). Strong problem-solving skills and the ability to thrive in an agile, squad-based environment. Nice To Have Functional programming experience in Scala . Experience with caching layers, distributed storage, and message queues . Familiarity with AI-powered developer tools such as ChatGPT, Cursor, GitHub Copilot, or similar to boost productivity. Contributions to open-source projects or personal projects showcasing backend innovation. We are unable to offer sponsorship at this time. Total Compensation package would include: anticipated base compensation range of $125,000.00 - $146,500.00 + bonus + equity + benefits.  Benefits include: a 401k plan and a company match, basic life insurance plus unparalleled health, dental, vision and other benefits and perks. Please see here for more details. An employee’s base salary and its position within the range may depend on a number of factors including job related knowledge, education, skills, experience and other business related considerations. Published ranges are provided in good faith at the time of posting. #RemoteWork #LI-Remote #WorkFromHome #RemoteJob #WFH About Plume As the creator of the only open, hardware-independent, cloud-controlled experience platform for ISPs and their subscribers, Plume partners with over 400 ISP customers, including some of the world’s largest such as Comcast, Charter, Liberty Global, and J:COM. Using OpenSync, the most widely supported open-source, silicon-to-cloud framework for smart spaces, Plume’s software-defined network allows ISPs to decouple their service offerings from hardware and rapidly curate and deliver new services over a multi-vendor, open-platform architecture. Plume is an equal opportunity workplace that maintains a continuing policy of nondiscrimination in all employment practices and decisions, ensuring equal employment opportunities for all qualified individuals without regard to race, color, creed, religion, sex, national origin, age, physical or mental disability, sexual orientation, gender identity, marital status, pregnancy, childbirth or related individual conditions, medical conditions (as defined by state law), military or veteran status, or any other characteristic protected by federal, state or local law.