Codekeeper logo
Codekeeper

Modern all-in-one software escrow solutions for agile development companies and their clients

Full Stack Developer, Javascript

Backend EngineerSoftware EngineerFull TimeRemoteSeniorTeam 11-50Since 2013H1B No SponsorCompany SiteLinkedIn

Location

Europe

Posted

20 hours ago

Salary

0

Seniority

Senior

Job Description

Full Stack Developer, Javascript

Codekeeper

• Crafting clean, efficient, and scalable code as a Full Stack Developer • Collaborating with a dynamic team to enhance software escrow solutions • Participating in regular team activities and engaging in a culture of feedback and collaboration • Contributing to the onboarding and training of new team members

Job Requirements

  • Degree in Computer Science
  • 5+ years of hands-on experience in JavaScript, TypeScript, HTML5, CSS3, React/Context API
  • 3+ years of experience with Next.js (App Router), GraphQL/Apollo
  • Proficiency with TailwindCSS
  • Proficiency in version control (Git, GitHub/GitLab)
  • Testing experience with Playwright, Cypress, or Jest + React Testing Library
  • Experience with relational databases like PostgreSQL and MySQL, as well as ORMs such as Prisma or Drizzle
  • Familiarity with authentication solutions (Cognito, Auth0, NextAuth.js)
  • Excellent communication skills, a team player, and service-oriented mindset
  • A strong passion for software development

Benefits

  • A dynamic, enthusiastic, and fun team
  • Opportunities for growth within a startup environment
  • Regular team activities and get-togethers
  • A comprehensive onboarding process with a dedicated ramp-up period and time to learn
  • A culture that values open communication, feedback, and collaboration

Related Job Pages

More Backend Engineer Jobs

Deepgram logo

Backend Engineer- Inference Services

Deepgram

Building foundational AI for speech transcription and understanding.

Backend Engineer20 hours ago
Full TimeRemoteTeam 51-200Since 2015H1B Sponsor

Company OverviewDeepgram is the leading platform underpinning the emerging trillion-dollar Voice AI economy, providing real-time APIs for speech-to-text (STT), text-to-speech (TTS), and building production-grade voice agents at scale. More than 200,000 developers and 1,300+ organizations build voice offerings that are ‘Powered by Deepgram’, including Twilio, Cloudflare, Sierra, Decagon, Vapi, Daily, Cresta, Granola, and Jack in the Box. Deepgram’s voice-native foundation models are accessed through cloud APIs or as self-hosted and on-premises software, with unmatched accuracy, low latency, and cost efficiency. Backed by a recent Series C led by leading global investors and strategic partners, Deepgram has processed over 50,000 years of audio and transcribed more than 1 trillion words. There is no organization in the world that understands voice better than Deepgram. Company Operating RhythmAt Deepgram, we expect an AI-first mindset—AI use and comfort aren’t optional, they’re core to how we operate, innovate, and measure performance. Every team member who works at Deepgram is expected to actively use and experiment with advanced AI tools, and even build your own into your everyday work. We measure how effectively AI is applied to deliver results, and consistent, creative use of the latest AI capabilities is key to success here. Candidates should be comfortable adopting new models and modes quickly, integrating AI into their workflows, and continuously pushing the boundaries of what these technologies can do. Additionally, we move at the pace of AI. Change is rapid, and you can expect your day-to-day work to evolve just as quickly. This may not be the right role if you’re not excited to experiment, adapt, think on your feet, and learn constantly, or if you’re seeking something highly prescriptive with a traditional 9-to-5. Opportunity: Deepgram is looking for a Backend Software Engineer to join the Engine team to lead the design and implementation of Deepgram’s products. You will design and implement secure, robust, and scalable services for speech processing; efficient, distributed compute orchestration; optimized scheduling, and more. Your skill at building highly reusable code that overcomes technical challenges is paired with an intuition for delightful user experiences. You will be a critical voice in Deepgram’s Product and Engineering teams, driving high impact products from start to finish. What You’ll Do - Improve Deepgram’s core inference services including areas in networking, speech processing, audio transcoding, and latency and memory optimization - Develop processes for measuring, building, and optimizing services to maximize system performance - Debug complex system issues that include networking, scheduling, and high performance computing interactions - Rapidly customize backend services to support our customer needs - Partner with Product to design and implement new services, features, and/or products end to end You’ll Love This Role If You - Thrive in a fast-paced, impact-driven environment where learning new skills on-the-fly is not only encouraged but a regular necessity - Enjoy balancing decisions about product and feature maturity to decide when to make minimally invasive changes versus when to incorporate detailed design work It’s Important To Us That You Have - 3+ years of experience in an industry role - Programming experience in Rust (or C, C++), with competence in Python - Excellent communication and organizational skills, both written and verbal. - A high level of experience and understanding of version control; preferably git. - Comprehensive experience with UNIX-style systems. It Would Be Great if You Had - Experience with modern machine learning, such as experience with a framework like Torch or implementation knowledge of architectures like CNNs, RNNS, and transformers - Experience with audio processing

United States
$150K - $220K / year
Kainos logo

Technical Architect, C#/.NET

Kainos

Thinking Beyond Limitations

Backend Engineer22 hours ago
Full TimeRemoteTeam 1,001-5,000H1B No Sponsor

• As a Technical Architect (Consultant) in Kainos, you’ll be responsible for leading teams and developing high quality solutions which delight our customers and impact the lives of users worldwide. • As a technical leader on a project, you’ll work with customer architects to agree technical designs, advising on estimated effort and technical implications of user stories and user journeys. • You’ll manage, coach and develop a small number of staff, with a focus on managing employee performance and assisting in their career development. • It’s a fast-paced environment so it is important for you to make sound, reasoned decisions. • You’ll do this whilst learning about new technologies and approaches, with room to learn, develop and grow.

United Kingdom
Devoted Studios logo

Backend Engineer

Devoted Studios

Creating equal opportunity for talent to work on games of their dreams

Backend Engineer22 hours ago
Full TimeRemoteTeam 51-200H1B No Sponsor

Role Description We are looking for an engineer who architects the service, deploys it, monitors it in production, responds when it breaks, and improves it after every incident. Key Responsibilities: - Service Design & Architecture - Design and build scalable, resilient web services in Java and/or Scala that support game client needs across PC, console, and mobile. - Own the data model — choose the right store (MongoDB for flexible document storage, DynamoDB for key-value at scale, Redis for caching and session state) and justify it. - Design REST APIs that game clients actually integrate well against — clear contracts, versioned, documented, forgiving of client-side variation. - Architect for the load profile of a live game: average load, launch spikes, event peaks, and graceful degradation when upstream dependencies fail. - Define and enforce service boundaries — knows where one service ends and another begins, and why. - AWS Infrastructure & Deployment - Build and maintain AWS infrastructure using IaC tooling (CDK, Terraform, or CloudFormation — confirm what's in use on the engagement). - Own the deployment pipeline for services they build: CI/CD configuration, environment promotion, rollback capability. - Right-size AWS resources for cost and performance — does not default to over-provisioning and does not leave obvious cost inefficiencies. - Familiar with the AWS services relevant to game backends: EC2, ECS/EKS, Lambda (where appropriate), API Gateway, ElastiCache, SQS/SNS, CloudWatch, S3. - Understands the network and security posture of services exposed to game clients — VPC design, security groups, IAM least privilege, secrets management. - Live Operation & Observability - Instruments every service for production readiness: structured logging, metrics, distributed tracing, health checks, and alerting before it goes live — not after the first incident. - Monitors services in production: reads dashboards, interprets anomalies, distinguishes noise from signal. - Responds to production incidents in services they own — has on-call responsibilities commensurate with service criticality. - Writes post-mortems and follows through on structural improvements so the same failure mode does not recur. - Understands the difference between a symptom and a root cause — does not fix symptoms. - Cross-Platform Client Integration - Works directly with game client engineers (PC, console, mobile) to define integration contracts, review client-side usage patterns, and debug integration issues. - Understands the constraints of each platform environment: console certification requirements around network usage, mobile data sensitivity, PC permissiveness — and designs service interfaces accordingly. - Owns the integration surface: API documentation that is correct, versioned, and kept up to date as the service evolves. - Participates in client-facing technical reviews where backend service design is on the table. - Quality & Engineering Standards - Writes unit and integration tests as a first-class output — not an afterthought. - Code reviews: gives specific, actionable feedback and receives it without defensiveness. - Maintains service documentation: architecture decisions, operational runbooks, known limitations, dependency map. - Raises technical debt explicitly — names it, quantifies its cost, and proposes a remediation path. Qualifications - 5+ years of professional backend/server-side engineering experience with at least 3 years working on services at live production scale. - Java at a professional shipping level — not just familiarity. Has designed, built, and operated Java services in production. - AWS hands-on ownership — has provisioned, deployed, monitored, and debugged AWS infrastructure, not just used managed services provisioned by someone else. - Polyglot data store fluency: has made deliberate choices between MongoDB, DynamoDB, and Redis for different use cases — not defaulted to one store for everything. - REST API design with real client integration experience — PC, console, or mobile clients consuming services they built. - End-to-end ownership mindset: has been on-call for services they wrote. Has written a post-mortem. Has shipped the fix. Requirements - Experience designing services that handle launch-day spikes: horizontal scaling patterns, queue-based load levelling, circuit breakers. - Familiarity with platform-specific SDK constraints: PlayStation Network, Xbox Live, Nintendo NSO, or Apple/Google mobile — understanding what the platform restricts and what it requires from the backend. - Kafka or SQS/SNS for event-driven service communication. - Kubernetes (EKS) cluster operations experience. - Security-conscious engineering: OAuth/OIDC, rate limiting, input validation, OWASP awareness at service design level. Benefits - Strong and enthusiastic team – you will have the opportunity for knowledge sharing, learning, and professional self-development. - Interesting and challenging tasks – solve diverse and challenging issues, communicate with people within the company as well as with our partners. - Convenient working conditions – remote work, the opportunity to build your own working day with flexible working hours. - A chance to work in a highly professional and dynamic team working with a wide range of International Game Production projects, attractive remuneration package, and opportunities to develop professionally.

Worldwide
Full TimeRemoteTeam 10,001+Since 1954H1B Sponsor

Role Description As a Full Stack Java Developer, you'll perform software requirements analysis, system integration activities, research and design, and develop and test software and tools. From inventing new products or enhancing existing applications, your talent will be front and center. HOW YOU WILL MAKE AN IMPACT - Seasoned, experienced professional with a broad range of expertise and a wide range of professional experience, possessing a substantial understanding of software engineering concepts, principles, and theories; expert at applying technical standards and methodologies to resolve a wide range of issues in creative ways. - Team player who thrives in collaborative environments and revels in team success, meeting and exceeding personal and team commitments. - Ability to serve as company technical spokesperson with subject matter expertise (SME). What sets you apart: - Active contributor to the achievement of financial and business objectives by resolving complex issues in creative, effective, and financially favorable ways. - Contributes to the development of innovative principles and ideas. - Effectively leads complex assignments, interacting with both customers and end-users. What you'll experience: - Technologies that aren't just top-notch, they're often top-secret. - A team of bold thinkers committed to exploring what's next. - Opportunities to gain new knowledge - as it's discovered. Qualifications - Experience developing object-oriented software applications in Java. - Experience in Web Development in Angular 2+ or ReactJS. - Experience with MongoDB or relational databases. - Familiarity with Java Frameworks (i.e. Spring, Spring Data, Spring Boot). - Proficient understanding of software engineering concepts, principles, and theories. - Proficient at applying technical standards and methodologies to resolve issues in creative ways and help the company meet financial and business objectives. - Ability to obtain a public trust. - US CITIZENSHIP required. Benefits - Flex work week to own your priorities at work and at home. - 401K with company match. - Comprehensive health and wellness packages. - Internal mobility team dedicated to helping you own your career. - Professional growth opportunities including paid education and certifications. - Cutting-edge technology you can learn from. - Rest and recharge with paid vacation and holidays. Company Description We are GDIT. A global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense, and intelligence community. Our 26,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50+ countries worldwide, offering leading mission-ready capabilities in AI, cloud, cyber, and software development.

United States
$86.3K - $98.0K / year