backend developer

Leartes

<div>
 
 
 🚀 We&rsquo;re Hiring: Backend Developer | Node.js | TypeScript
 
 
 
 
 
 
 
 Leartes Studios is a fast-growing game development company that collaborates with industry leaders such as Microsoft, Epic Games, Adobe, and Nintendo. We are one of the top publishers on the Unreal Engine Marketplace and Unity Asset Store.
 
 
 
 
 
 
 We&rsquo;re looking for a Backend Developer who is passionate about clean architecture, performance, and scalable system design. In this role, you will be responsible for designing, developing, and maintaining backend services, APIs, and data layers while collaborating closely with frontend and product teams.
 
 
 
 
 
 
 🎯 Responsibilities
 
 
 <ul>
 <li>
 Develop scalable, secure, and high-performance backend systems
 </li>
 <li>
 Design, implement, and maintain RESTful APIs
 </li>
 <li>
 Work with databases and optimize queries and data models
 </li>
 <li>
 Implement caching strategies using Redis to improve performance
 </li>
 <li>
 Integrate third-party and internal APIs
 </li>
 <li>
 Contribute to technical documentation and maintain clear system documentation
 </li>
 <li>
 Collaborate with team members using Git-based version control workflows
 </li>
 </ul>
 
 
 
 
 
 🧩 Qualifications - Required Skills
 
 
 <ul>
 <li>
 Strong experience with Node.js development
 </li>
 <li>
 Hands-on experience with AdonisJS or similar frameworks (NestJS, Express, etc.)
 </li>
 <li>
 Solid knowledge of TypeScript
 </li>
 <li>
 Experience using Redis and implementing cache strategies
 </li>
 <li>
 Experience working with databases
 </li>
 <li>
 Strong understanding of RESTful API design principles
 </li>
 <li>
 Proficiency with Git version control
 </li>
 </ul>
 
 
 
 
 
 Nice to Have
 
 
 <ul>
 <li>
 Experience with Next.js
 </li>
 <li>
 Familiarity with Tailwind CSS or UnoCSS
 </li>
 <li>
 Experience with Go
 </li>
 </ul>
 <li>
 </li>
 
 
 
 
 
 🎁 Perks &amp; Benefits
 
 
 <ul>
 <li>
 Meal card (Multinet)
 </li>
 <li>
 Supplementary private health insurance
 </li>
 <li>
 Hybrid working model
 </li>
 <li>
 Opportunity to work with industry-leading partners (Epic Games, Unity, Adobe, Tencent, etc.)
 </li>
 <li>
 Chance to contribute to global projects and build a strong portfolio
 </li>
 <li>
 Supportive, learning-focused team environment
 </li>
 <li>
 Hands-on experience in real production workflows and mentorship opportunities
 </li>
 </ul>
 
 
 
 
 📍 Contract Type: Full Time
 
 
 💻 Industry: Software / Web Technologies / SaaS
 
 
 🌍 Work Model: Hybrid / Remote
 
</div>

Backend Developer

Bitfinex

<div><h4 class="jobSectionHeader">The Original Bitcoin Exchange</h4>
Inspired by Bitcoin's vision of financial freedom, we are committed to empowering individuals to transact and connect seamlessly across the globe. From the early days of the Bitcoin revolution, our mission has been to champion freedom through innovative, reliable, and accessible technology&mdash;ensuring that everyone, everywhere, has the tools to participate in a truly open and borderless world.
We are driven by a relentless pursuit of innovation and financial empowerment. By prioritizing education and delivering a cutting-edge platform, we enable users to seamlessly buy, hold, and trade digital assets with confidence. As the digital asset landscape rapidly evolves, we stay ahead&mdash;offering state-of-the-art trading services that empower both individuals and global liquidity providers. Our forward-thinking, agile approach ensures that financial freedom is not just a vision, but a reality for all.
Our team, composed of visionary individuals with practical expertise, focuses on crafting solutions to the market's toughest challenges. Despite our global presence and impact, we maintain a small, technology-focused core, fostering a culture of collaboration and innovation.
We value integrity and autonomy, empowering our team to contribute from concept to launch. Driven by a passion for lifelong learning and a commitment to advancing freedom, we prioritize high-caliber products and services, with a proven track record of innovation that draws on the dexterity of our teams.<h4 class="jobSectionHeader">
Why Join Us?</h4>
Innovation
At Bitfinex, we merge technology and skill to create an environment where your involvement isn&rsquo;t just appreciated&mdash;it&rsquo;s pioneering the future and pushing boundaries in finance. Our culture values bold creativity, a passion for technology, and a deep belief in Financial Freedom.
Flexibility &amp; Global Reach
We believe in trust, autonomy, and results&mdash;our team operates remotely, ensuring you work from anywhere while collaborating with some of the best talents across the world. We thrive on innovation, autonomy, and breaking new ground.
Fast-Paced &amp; Impactful
Much like the crypto industry itself, our projects move fast, break new ground, and make an impact. Your contributions reach our global audience, shaping the narrative of a decentralized future.
A Team that Thrives on Collaboration
We blend seasoned experts with fresh creative minds, ensuring constant innovation, mentorship, and a dynamic work environment that keeps you at the forefront of achieving your goals. We see integrity and standing up for what is right as the most important qualities.
Grow with the Best
At Bitfinex, we&rsquo;re committed to continuous learning&mdash;whether through technological advancements, creative workshops, or mentorship from leading professionals in the industry.
If you&rsquo;re excited about partaking in shaping the narrative of decentralized finance, you&rsquo;ll feel right at home
We&rsquo;re looking for: Senior Backend Developer
<h4 class="jobSectionHeader">The Role:</h4> 
As a senior Backend Developer, you will be a part of the team that works on the development of the backend components of all Bitfinex Services (main trading application, Lightning Network support, Blockchain integrations, &hellip;.). This includes:<ul><li>
New Products and Features - Bitfinex continuously strives to create innovative new features in order to provide the most professional trading experience for customers. These are developed and deployed using agile methodologies, to ensure the user experience remains the best in the industry.</li><li>
Scalability - all backend services that power Bitfinex platform must remain effortlessly smooth, responsive, and real-time for customers as the platform continues to scale to accommodate new user growth. A good example are the renown Bitfinex API, the most solid, low-latency and complete in our industry.</li><li>
Security - Bitfinex makes Security its most important feature. The Backend Development team is responsible for building all the API services and backend processes with the highest security principles and standard, in order to protect the safety of the entire user base.</li></ul><h4 class="jobSectionHeader">
What You Bring to the Table:</h4><ul><li>
Exceptional Node/JavaScript skills</li><li>
Familiar with microservices architecture</li><li>
Have actively participated in the development of a complex platform</li><li>
Good experience in interacting with databases (MySQL, MongoDB)</li><li>
Ability to quickly learn new technologies</li><li>
Good understanding of security practices</li></ul><h4 class="jobSectionHeader">
Other Valuable Skills:</h4><ul><li>
Experience with blockchain integration</li><li>
Comfortable with high-availability concepts</li><li>
Ruby, Rust or C++ skills are a plus</li><li>
Other technologies of interest: Message queues (Redis), Caches and Job Queues</li></ul><h4 class="jobSectionHeader">
What We Offer:</h4><ul><li>
Flexible Work &amp; Remote-Friendly Culture</li><li>
Mentorship &amp; Growth</li><li>
Competitive Pay</li><li>
Career Development Opportunities</li><li>
Supportive Team Environment</li><li>
Learning &amp; Knowledge Sharing</li><li>
Team-Building Activities</li><li>
Social activities (online &amp; in-person)</li><li>
A collaborative environment where your creativity will have a direct impact on the brand&rsquo;s narrative</li></ul>
Ready to join us in bringing Financial Freedom to all? 
If you&rsquo;re a visionary who thrives at the intersection of technology, knowledge and innovation, we want to hear from you!
Recruitment Data &amp; Security Disclaimer
As part of the hiring process at Bitfinex, we collect personal data such as your name, contact details, location, job preferences, education and employment history, and other information you voluntarily provide. This data is used solely for recruitment purposes, processed in accordance with applicable global data protection laws, including the General Data Protection Regulation (GDPR) and the California Consumer Privacy Act (CCPA), and retained only for as long as necessary to fulfil its purpose.
All assessments and recruitment-related communications are conducted exclusively through official Bitfinex email addresses (e.g., firstname.lastname@bitfinex.com). Bitfinex does not use unofficial channels (such as WhatsApp, Telegram, or SMS) for recruitment communication and does not distribute assessments or sensitive links via those means.
As part of our secure and compliant recruitment process, we may use approved third-party platforms to facilitate candidate assessments. For more information, please refer to our Candidate Privacy Notice and Interview Recording Consent. All candidates have the right to access, correct, or delete their personal data and to withdraw consent at any time, where applicable.
Bitfinex will never request payments, financial information, or personal banking details at any stage of the recruitment process.
If you receive a suspicious request, wish to exercise your data privacy rights, or have further inquiries regarding the legal aspects of the process, contact privacy@bitfinex.com. Please note this inbox is intended for privacy concerns and reports only; any other communications will not be processed.
Equal Opportunity Statement
At Bitfinex, we're committed to equitable opportunities. We do not discriminate based on race, religion, gender, age, disability, sexual orientation, gender identity, or any other protected status. This commitment applies across all stages of recruitment and contractual relationships.</div>

Senior Backend Developer - Node.js (Fully Remote, Worldwide)

YO IT CONSULTING

<div><div><div>Partnering with a top AI research organization to evaluate and improve how coding assistants reason, act, and communicate during development workflows. We&rsquo;re seeking technically sharp experts (especially those with experience in code review, testing, or documentation) to assess full transcripts of user&ndash;AI coding conversations. This short-term engagement helps shape the future of developer-assisting AI systems.
Key Responsibilities
<ul><li>Review long-form transcripts between users and AI coding assistants</li></ul>
<ul><li>Analyze the AI&rsquo;s logic, execution, and stated actions in detail</li></ul>
<ul><li>Score each transcript using a 10-point rubric across multiple criteria</li></ul>
<ul><li>Optionally write brief justifications citing examples from the dialogue</li></ul>
<ul><li>Detect mismatches between claims and actions (e.g., saying &ldquo;I&rsquo;ll run tests&rdquo; but not doing so)</li></ul>
Ideal Qualifications
Top choices:
<ul><li>Senior or Staff Engineers with deep code review experience and execution insight</li></ul>
<ul><li>QA Engineers with strong verification and consistency-checking habits</li></ul>
<ul><li>Technical Writers or Documentation Specialists skilled at comparing instructions vs. implementation</li></ul>
Also a strong fit:
<ul><li>Backend or Full-Stack Developers comfortable with function calls, APIs, and test workflows</li></ul>
<ul><li>DevOps or SRE professionals familiar with tool orchestration and system behavior analysis</li></ul>
Languages and Tools:
<ul><li>Proficiency in Python is helpful (most transcripts are Python-based)</li></ul>
<ul><li>Familiarity with other languages like JavaScript, TypeScript, Java, C++, Go, Ruby, Rust, or Bash is a plus</li></ul>
<ul><li>Comfort with Git workflows, testing frameworks, and debugging tools is valuable</li></ul>
More About the Opportunity
<ul><li>Must complete each transcript batch within 5 hours of starting (unlimited tasks to be done)</li></ul>
<ul><li>Flexible, task-based engagement with potential for recurring batches</li></ul>
Application Process
<ul><li>Submit your resume to begin</li></ul>
<ul><li>If selected, you&rsquo;ll receive rubric documentation and access to the evaluation platform</li></ul>
<ul><li>Most applicants hear back within a few business days</li></ul>
We consider all qualified applicants without regard to legally protected characteristics and provide reasonable accommodations upon request.
</div></div><div><div><h2 class="jobSectionHeader">Contract and Payment Terms</h2>
<ul><li>You will be engaged as an independent contractor.</li>
<li>This is a fully remote role that can be completed on your own schedule.</li>
<li>Projects can be extended, shortened, or concluded early depending on needs and performance.</li>
<li>Your work at will not involve access to confidential or proprietary information from any employer, client, or institution.</li>
<li>Payments are weekly on Stripe or Wise based on services rendered.</li></ul></div></div></div>

Software Test Engineer QA

QA Software Engineer - Code Review Expert

Ruby Labs

<div><h1 class="jobSectionHeader">About us</h1>
Ruby Labs is a leading tech company that creates and operates innovative consumer products. We offer a diverse range of opportunities across the health, education, and entertainment industries. Our innovative teams are driving the future of consumer-led products, and we're always looking for passionate individuals to join us. Learn more about our story at: https://rubylabs.com/about-us/<h1 class="jobSectionHeader">
About the role</h1>
This role focuses on building and scaling a modern full-stack web application, with ownership across both frontend and backend development. You&rsquo;ll work closely with product and engineering teams to deliver secure, high-performance features while applying best practices in architecture, testing, and optimization. The position also emphasizes innovation, mentorship, and a strong product mindset to ensure technical solutions drive real user and business value.<h1 class="jobSectionHeader">
Key Responsibilities</h1><ul><li>
FullStack Development: Take an active, hands-on role in developing complex features and modules using Next.js for the frontend and NodeJS for the backend.</li><li>
Quality Assurance: Enforce best practices in coding, testing, caching, and performance monitoring to ensure a robust and scalable application.</li><li>
Security: Design and implement comprehensive security measures at the application, infrastructure, and data levels.</li><li>
Analytics &amp; Optimization: Collaborate closely with the product team to integrate analytics systems and conduct A/B tests to enhance the user experience.</li><li>
Innovation: Research and integrate emerging technologies, particularly AI-driven solutions, to improve the product and streamline development workflows.</li></ul><h1 class="jobSectionHeader"> 
Qualifications</h1><ul><li>
A minimum of 2 years of active, commercial experience with Next.js (v15.x). Must have worked on at least two recent projects where Next.js was the primary frontend framework.</li><li>
Deep knowledge and at least 3 years of hands-on experience with a modern framework such as NestJS, Fastify, or Hono. A clear understanding of their architectural trade-offs is required.</li><li>
Strong understanding of Fastify, including its main advantages, validation and serialization, and authentication and authorization mechanisms.</li><li>
Strong proficiency with PostgreSQL and/or Supabase, including query optimization and schema design.</li><li>
In-depth, practical knowledge of Prisma or Drizzle ORM, with experience in building complex queries and managing migrations.</li><li>
A profound understanding of caching strategies (e.g., in-memory, distributed cache, CDN) and the ability to apply them effectively to optimize performance (e.g., using Redis).</li><li>
Full proficiency with Docker for creating, managing, and deploying containerized applications. Experience with Docker Compose is essential.</li><li>
Understanding and practical application of background workers and message queues (e.g., BullMQ, RabbitMQ) for handling asynchronous tasks.</li><li>
Proven experience in building secure systems, including protecting against common vulnerabilities (OWASP Top 10), configuring Content Security Policy (CSP), CORS, securing APIs, and hardening hosting environments.</li><li>
Experience working with analytics tools (e.g., Google Analytics, PostHog, Mixpanel) and platforms for A/B testing.</li><li>
A genuine passion for teaching, sharing knowledge, and helping team members grow professionally.</li><li>
Excellent communication skills, with the ability to articulate complex technical concepts clearly to both technical and non-technical stakeholders.</li><li>
The ability to understand business objectives and translate them into technical solutions that deliver real value to users.</li></ul><h1 class="jobSectionHeader">
Nice to have</h1><ul><li>
Experience with CI/CD pipelines (e.g., GitHub Actions, GitLab CI).</li><li>
Experience writing unit and integration tests (e.g., Jest, Playwright).</li></ul><h1 class="jobSectionHeader">
Location</h1>
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 &plusmn; 4 hours of CET. This ensures optimal collaboration and communication during working hours.<h1 class="jobSectionHeader">
Benefits</h1>
Discover the perks of being part of our vibrant team! We offer:<ul><li>
Remote Work Environment: Embrace the freedom to work from anywhere, anytime, promoting a healthy work-life balance.
</li><li>Unlimited PTO: Enjoy unlimited paid time off to recharge and prioritize your well-being, without counting days.
</li><li>Paid National Holidays: Celebrate and relax on national holidays with paid time off to unwind and recharge.
</li><li>Company-provided MacBook: Experience seamless productivity with top-notch Apple MacBooks provided to all employees who need them.
</li><li>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. Read more about it here: https://docs.google.com/document/d/1tzxGX4Uu7Ts_HCLFXESKLnKaaBfVCPf1f9AYZPrkjJM/preview</li></ul>
Be part of our fast-growing team and seize this excellent opportunity for personal and professional growth!<h1 class="jobSectionHeader">
Interview Process</h1>
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:<ul><li>
Recruiter Screening (40 minutes)</li><li>
Technical Interview (90 minutes)</li><li>
Final Interview (60 minutes)</li></ul><h1 class="jobSectionHeader">
Life at Ruby Labs</h1>
At Ruby Labs, we move fast, aim high, and expect the same from our team. We&rsquo;re not here to play small&mdash;we&rsquo;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&rsquo;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&mdash;more responsibility, more growth, and more success.
#LI-Remote</div>

Full-Stack Engineer

<div><h1 class="jobSectionHeader">About us</h1>
Ruby Labs is a leading tech company that creates and operates innovative consumer products. We offer a diverse range of opportunities across the health, education, and entertainment industries. Our innovative teams are driving the future of consumer-led products, and we're always looking for passionate individuals to join us. Learn more about our story at: https://rubylabs.com/about-us/<h1 class="jobSectionHeader">
Overview</h1>
RubyLabs is building a payment orchestration system consisting of:<ul><li>
A JavaScript frontend SDK for payment forms</li><li>
A Golang backend API</li><li>
An internal CRM</li></ul>
Our platform is integrated into multiple products and workflows, where correct integration, clear documentation, and fast feedback are critical to successful payment processing.
We are looking for an Integrations Engineer who will act as the technical bridge between our platform and the products integrating it. This role combines frontend engineering, integration support, product understanding, and customer-facing communication.
In this role, you will:<ul><li>
Work closely with internal and external product teams integrating our payment solution</li><li>
Help products correctly integrate our frontend JavaScript SDK and backend APIs</li><li>
Be deeply familiar with how our system behaves in real-world integrations</li><li>
Feed real integration issues, edge cases, and gaps back to the engineering team</li></ul>
This is not a classic support role &mdash; you will write code, read code, debug integrations, and help shape both the SDK and the documentation based on real usage.<h1 class="jobSectionHeader">
About the role</h1>
You will be the person who:<ul><li>
Helps products embed and configure our payment form SDK</li><li>
Answers integration questions in support channels</li><li>
Tests integrations and reproduces issues</li><li>
Distinguishes bugs vs incorrect usage vs documentation gaps</li><li>
Ensures our documentation matches actual API and SDK behavior</li></ul>
You will work closely with backend engineers, frontend SDK developers, and product managers to improve integration quality and developer experience.<h1 class="jobSectionHeader">
Key Responsibilities</h1>
SDK Integration &amp; Customer Support<ul><li>
Assist product teams in integrating the JavaScript payment SDK into their frontend applications.</li><li>
Help configure payment flows, callbacks, and error handling.</li><li>
Monitor support channels (Slack, tickets, shared chats, etc.).</li><li>
Answer technical questions related to SDK usage and API behavior.</li><li>
Guide teams through best practices for secure and reliable integrations.</li></ul>
Debugging &amp; Issue Triage<ul><li>
Reproduce reported integration issues locally or in test environments.</li><li>
Debug frontend and API-related issues across:<ul><li>
JavaScript SDK</li><li>
Backend Golang API</li><li>
CRM and configuration interfaces</li></ul></li><li>
Identify whether an issue is:<ul><li>
A real bug</li><li>
Incorrect integration or usage</li><li>
Missing or unclear documentation</li></ul></li><li>
Escalate confirmed bugs to the development team with clear reproduction steps and context.</li></ul>
Documentation Ownership<ul><li>
Review and validate API and SDK documentation against real system behavior.</li><li>
Keep documentation in sync with current SDK and API versions.</li><li>
Identify missing examples, unclear explanations, or misleading flows.</li><li>
Proactively improve developer-facing docs based on integration feedback.</li></ul>
Internal Tooling &amp; CRM<ul><li>
Use and understand the internal Next.js CRM.</li><li>
Help configure products, payment flows, and settings via the CRM.</li><li>
Provide feedback to the CRM team on usability gaps or missing functionality.</li><li>
Occasionally implement small frontend improvements if needed.</li></ul>
Feedback Loop &amp; Product Impact<ul><li>
Act as the voice of integrators and product teams inside RubyLabs.</li><li>
Share recurring issues, friction points, and improvement ideas with engineering and product.</li><li>
Help prioritize fixes and improvements based on real-world impact.</li><li>
Contribute to improving overall developer experience of the platform.</li></ul><h1 class="jobSectionHeader">
Qualifications</h1><ul><li>
Strong experience with JavaScript / TypeScript and frontend integrations.</li><li>
Experience working with frontend SDKs or third-party APIs.</li><li>
Ability to read and understand backend APIs (REST, JSON, auth flows).</li><li>
Comfort debugging issues across frontend and backend boundaries.</li><li>
Strong communication skills and ability to explain technical concepts clearly.</li><li>
High ownership mindset &mdash; you care about integrations actually working in production.</li></ul><h1 class="jobSectionHeader">
Nice to have</h1><ul><li>
Experience in payments, fintech, or checkout flows.</li><li>
Experience with React / Next.js.</li><li>
Familiarity with Golang APIs.</li><li>
Experience improving developer documentation.</li><li>
Previous experience in a Solutions Engineer, or Integration Engineer role.</li></ul><h1 class="jobSectionHeader">
How You Work</h1><ul><li>
You enjoy working close to real users and real problems.</li><li>
You&rsquo;re pragmatic and solution-oriented.</li><li>
You can switch between code, docs, and conversations seamlessly.</li><li>
You know when to escalate a bug &mdash; and when to fix confusion with a good explanation.</li><li>
You thrive in a remote, fast-moving environment.</li></ul><h1 class="jobSectionHeader">
Location</h1>
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 &plusmn; 4 hours of CET. This ensures optimal collaboration and communication during working hours.<h1 class="jobSectionHeader">
Benefits</h1>
Discover the perks of being part of our vibrant team! We offer:<ul><li>
Remote Work Environment: Embrace the freedom to work from anywhere, anytime, promoting a healthy work-life balance.
</li><li>Unlimited PTO: Enjoy unlimited paid time off to recharge and prioritize your well-being, without counting days.
</li><li>Paid National Holidays: Celebrate and relax on national holidays with paid time off to unwind and recharge.
</li><li>Company-provided MacBook: Experience seamless productivity with top-notch Apple MacBooks provided to all employees who need them.
</li><li>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. Read more about it here: https://docs.google.com/document/d/1tzxGX4Uu7Ts_HCLFXESKLnKaaBfVCPf1f9AYZPrkjJM/preview?tab=t.0</li></ul>
Be part of our fast-growing team and seize this excellent opportunity for personal and professional growth!<h1 class="jobSectionHeader">
Interview Process</h1>
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:<ul><li>
Recruiter Screening (40 minutes)</li><li>
Technical Interview (45 minutes)</li><li>
Final Interview (30 minutes)</li></ul><h1 class="jobSectionHeader">
Life at Ruby Labs</h1>
At Ruby Labs, we move fast, aim high, and expect the same from our team. We&rsquo;re not here to play small&mdash;we&rsquo;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&rsquo;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&mdash;more responsibility, more growth, and more success.
#LI-Remote</div>

Integrations Engineer

<div><h1 class="jobSectionHeader">About us</h1>
Ruby Labs is a leading tech company that creates and operates innovative consumer products. We offer a diverse range of opportunities across the health, education, and entertainment industries. Our innovative teams are driving the future of consumer-led products, and we're always looking for passionate individuals to join us. Learn more about our story at: https://rubylabs.com/about-us/<h1 class="jobSectionHeader">
About the role</h1>
RubyLabs is building a payment orchestration system consisting of:<ul><li>
A JavaScript frontend SDK for payment forms</li><li>
A Golang backend API</li><li>
An internal CRM</li></ul>
Our platform is integrated into multiple products and workflows, where correct integration, clear documentation, and fast feedback are critical to successful payment processing.
We are looking for a Frontend Forward-Deployed Engineer (FDE) who will act as the technical bridge between our platform and the products integrating it. This role combines frontend engineering, integration support, product understanding, and customer-facing communication.<h1 class="jobSectionHeader">
What &ldquo;Forward-Deployed&rdquo; Means Here</h1>
In this role, you will:<ul><li>
Work closely with internal and external product teams integrating our payment solution</li><li>
Help products correctly integrate our frontend JavaScript SDK and backend APIs</li><li>
Be deeply familiar with how our system behaves in real-world integrations</li><li>
Feed real integration issues, edge cases, and gaps back to the engineering team</li></ul>
This is not a classic support role &mdash; you will write code, read code, debug integrations, and help shape both the SDK and the documentation based on real usage.<h1 class="jobSectionHeader">
Key Responsibilities</h1>
SDK Integration &amp; Customer Support<ul><li>
Assist product teams in integrating the JavaScript payment SDK into their frontend applications.</li><li>
Help configure payment flows, callbacks, and error handling.</li><li>
Monitor support channels (Slack, tickets, shared chats, etc.).</li><li>
Answer technical questions related to SDK usage and API behavior.</li><li>
Guide teams through best practices for secure and reliable integrations.</li></ul>
Debugging &amp; Issue Triage<ul><li>
Reproduce reported integration issues locally or in test environments.</li><li>
Debug frontend and API-related issues across:<ul><li>
JavaScript SDK</li><li>
Backend Golang API</li><li>
CRM and configuration interfaces</li></ul></li><li>
Identify whether an issue is:<ul><li>
A real bug</li><li>
Incorrect integration or usage</li><li>
Missing or unclear documentation</li></ul></li><li>
Escalate confirmed bugs to the development team with clear reproduction steps and context.</li></ul>
Documentation Ownership<ul><li>
Review and validate API and SDK documentation against real system behavior.</li><li>
Keep documentation in sync with current SDK and API versions.</li><li>
Identify missing examples, unclear explanations, or misleading flows.</li><li>
Proactively improve developer-facing docs based on integration feedback.</li></ul>
Internal Tooling &amp; CRM<ul><li>
Use and understand the internal Next.js CRM.</li><li>
Help configure products, payment flows, and settings via the CRM.</li><li>
Provide feedback to the CRM team on usability gaps or missing functionality.</li><li>
Occasionally implement small frontend improvements if needed.</li></ul>
Feedback Loop &amp; Product Impact<ul><li>
Act as the voice of integrators and product teams inside RubyLabs.</li><li>
Share recurring issues, friction points, and improvement ideas with engineering and product.</li><li>
Help prioritize fixes and improvements based on real-world impact.</li><li>
Contribute to improving overall developer experience of the platform.</li></ul><h1 class="jobSectionHeader">
Qualifications</h1><ul><li>
Strong experience with JavaScript / TypeScript and frontend integrations.</li><li>
Experience working with frontend SDKs or third-party APIs.</li><li>
Ability to read and understand backend APIs (REST, JSON, auth flows).</li><li>
Comfort debugging issues across frontend and backend boundaries.</li><li>
Strong communication skills and ability to explain technical concepts clearly.</li><li>
High ownership mindset &mdash; you care about integrations actually working in production.</li></ul><h1 class="jobSectionHeader">
Nice to have</h1><ul><li>
Experience in payments, fintech, or checkout flows.</li><li>
Experience with React / Next.js.</li><li>
Familiarity with Golang APIs.</li><li>
Experience improving developer documentation.</li><li>
Previous experience in a Forward-Deployed Engineer, Solutions Engineer, or Integration Engineer role.</li></ul><h1 class="jobSectionHeader">
How You Work</h1><ul><li>
You enjoy working close to real users and real problems.</li><li>
You&rsquo;re pragmatic and solution-oriented.</li><li>
You can switch between code, docs, and conversations seamlessly.</li><li>
You know when to escalate a bug &mdash; and when to fix confusion with a good explanation.</li><li>
You thrive in a remote, fast-moving environment.</li></ul><h1 class="jobSectionHeader">
Location</h1>
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 &plusmn; 4 hours of CET. This ensures optimal collaboration and communication during working hours.<h1 class="jobSectionHeader">
Benefits</h1>
Discover the perks of being part of our vibrant team! We offer:<ul><li>
Remote Work Environment: Embrace the freedom to work from anywhere, anytime, promoting a healthy work-life balance.
</li><li>Unlimited PTO: Enjoy unlimited paid time off to recharge and prioritize your well-being, without counting days.
</li><li>Paid National Holidays: Celebrate and relax on national holidays with paid time off to unwind and recharge.
</li><li>Company-provided MacBook: Experience seamless productivity with top-notch Apple MacBooks provided to all employees who need them.
</li><li>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. Read more about it here: https://docs.google.com/document/d/1tzxGX4Uu7Ts_HCLFXESKLnKaaBfVCPf1f9AYZPrkjJM/preview?tab=t.0</li></ul>
Be part of our fast-growing team and seize this excellent opportunity for personal and professional growth!<h1 class="jobSectionHeader">
Interview Process</h1>
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:<ul><li>
Recruiter Screening (40 minutes)</li><li>
Technical Interview (45 minutes)</li><li>
Final Interview (30 minutes)</li></ul><h1 class="jobSectionHeader">
Life at Ruby Labs</h1>
At Ruby Labs, we move fast, aim high, and expect the same from our team. We&rsquo;re not here to play small&mdash;we&rsquo;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&rsquo;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&mdash;more responsibility, more growth, and more success.
#LI-Remote</div>

Forward-Deployed Engineer

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