Jobs Node.js

We’re excited to offer a long-term opportunity for an experienced Back-end Developer (Node.js) to join a team of professional engineers and designers. Together, you’ll be working on a US-based product that’s set to make a significant impact on the PropTech scene. This role offers the chance to contribute to a major market and collaborate with top talent in a dynamic environment.
 

About ElevateOS Product

ElevateOS has been improving the resident experience for over seven years. We created a single, all-in-one platform that makes it easy for property managers and resident staff to work together. Our goal is simple: to provide the best experience for residents by replacing multiple, confusing apps with one easy solution.

This is a stable, long-term project that continues to grow, and you'll have the chance to be part of its ongoing success.

Our primary technology stack revolves around JavaScript. We use React for the front-end, Node.js for the back-end, and React Native for mobile development.


Requirements:

- 4+ years of development experience with Node.js;
- Practical knowledge of VanillaJS, Typescript, Nest.js;
- Hands-on experience creating robust API’s and designing scalable back-end architecture;
- Experience with managing data and using different types of databases (SQL and non-SQL) for storing and operating on data;
- Experience delivering (even small) projects, using modern tools like CircleCI, Docker, Kubernetes, Swarm and navigating through different environments like AWS, GCP, Digital Ocean.
- Good understanding of ECMAScript specifications;
- Good knowledge of GIT;
- Proficient in English language.


Additional (good-to-have) skills:

- Experience with Microservice Architecture;
- Experience working with AWS.


What will your responsibilities include?

- Creating first-class back-end systems by writing clear, sustainable and well-tested code;
- Improving performance and refactoring existing code;
- Cooperating with the Product, UI/UX, QA and Front-end teams to fulfil project goals;
- Configure project environments and deployment procedures;
- Bugfix during the development process;
- Cover your code with unit tests;
- Write documentation.


We are looking forward to having you on board to contribute to our journey of transforming real estate property management!

We’re building a high-performance, intelligence-driven trading platform operating across Chat, Web, and internal data systems. 

We’re looking for a senior full-stack engineer who can take on large, ambiguous problems and turn them into production-grade features with minimal supervision. You should be deeply comfortable with React/Next.js frontends, Node.js backends, and modern application patterns.

You Will:

- Ship high-quality features end-to-end across Node.js APIs and Next.js frontends

- Optimize performance, data flows, caching, and component architecture

- Improve existing codebases with strong engineering discipline (testing, structure, clarity)

- Integrate with internal APIs, trading engines, and real-time data surfaces

- Operate independently inside high-tempo dev cycles

Requirements:

• 3+ years full-stack experience

• Expert in Node.js, React, Next.js

• Strong with TypeScript, API design, and system-level thinking

• Excellent communication - able to articulate reasoning and tradeoffs clearly

• Prior experience in fast-paced startups or high-ownership environments

Nice to Have:

• Experience with WebSockets, real-time systems

• Familiarity with PostgreSQL, Redis, caching layers

• Background in trading, finance, or data-intensive systems

• Experience in Solana, DeFi protocols, or trading systems

A FinTech payment gateway for the US market. The platform integrates with payment providers and processes transactions for US-based merchants.

What You’ll Be Doing

• Develop and maintain features across the full stack — from task clarification to production release.
• Build and support backend services using Node.js (Express).
• Work with databases, primarily PostgreSQL, and occasionally MongoDB.
• Develop responsive UI components using React and ensure smooth frontend-backend interaction.
• Integrate with external payment providers and maintain stable, well-documented APIs.
• Participate in code reviews and contribute to improving code quality and maintainability.
• Support debugging, issue resolution, and performance improvements in collaboration with senior engineers.

Requirements (Middle Level)

Must-have:

• 2–4 years of commercial development experience (full-stack or backend with React experience as a plus).
• Solid knowledge of Node.js and experience with Express or a similar framework.
• Experience designing and developing REST APIs (validation, status codes, authentication, versioning).
• Practical experience with PostgreSQL (queries, basic indexing, simple query optimization).
• Hands-on experience with React (components, hooks, forms, API integration).
• Good understanding of Git and collaborative workflows (PRs, code reviews, branching strategies).
• Ability to independently handle medium-complexity tasks, clarify requirements, and deliver features to production.

Nice to Have:

• Experience with MongoDB.
• Exposure to FinTech, payment integrations, or understanding of PCI-related constraints.
• Basic experience with unit/integration testing.
• Familiarity with Docker and CI/CD pipelines

N.B.! The position is remote, but the candidate should be located in Latvia or Lithuania. 

In partnership with one of the global consulting enterprises, on a large-scale digital program for a UK Telecommunication industry client, we are seeking a Middle/Senior Software Engineer to join our Software Engineering team. 
You will contribute to developing innovative technology solutions for emerging products and industries, working closely with your team and cross-functional stakeholders.

Responsibilities:

• Lead development of applications using Node.js, TypeScript, React.js, and AWS Lambda.
• Design and implement infrastructure using AWS CDK.
• Translate system requirements into architecture and design specifications.
• Serve as a subject matter expert and mentor junior team members.
• Collaborate with cross-functional teams to define, design, and ship new features.
• Lead code reviews, troubleshoot critical issues, and ensure code quality and maintainability.
• Continuously research and implement new technologies to optimize development efficiency.

Must-Have Skills:

• Advanced proficiency in TypeScript, Node.js, AWS Lambda, AWS CDK
• Strong problem-solving, critical thinking, and decision-making skills
• Excellent communication, presentation, and team collaboration skills
• Ability to guide teams, make strategic technical decisions, and handle cross-team dependencies

Good-to-Have Skills:

• Python, Java
• CI/CD setup, Performance testing, CloudWatch experience

N.B! -  Locations: remote from Latvia, Lithuania, Spain, Poland, Slovakia, Romania, Hungary 

Overview

In a partnership with a global consulting company, we are seeking a Senior Software Engineer with expertise in Node.js and AWS to join our Information Syndication engineering team. In this role, you will be responsible for building scalable and performant backend services, contributing to architectural decisions, and deploying cloud-native solutions on AWS. You will collaborate closely with front-end developers, DevOps engineers, and product teams to deliver impactful features, while upholding modern engineering practices such as TDD and pair programming. The client is a UK-based telecommunication company.

Key Responsibilities

• Design, develop, and maintain scalable backend services using Node.js and TypeScript.

• Build secure and performant RESTful APIs and microservices architecture.

• Deploy and manage applications using AWS services such as Lambda, API Gateway, DynamoDB, S3, and ECS.

• Implement CI/CD pipelines using AWS Code Pipeline, Code Build, or similar tools.

• Apply Test-Driven Development (TDD) and maintain high test coverage across all deliverables.

• Participate in pair programming sessions to improve collaboration, code quality, and knowledge sharing.

• Write unit, integration, and end-to-end tests using frameworks such as Jest, Mocha.

• Collaborate with cross-functional teams to define, design, and deliver new features.

• Contribute to system architecture discussions and advocate for engineering best practices.

• Troubleshoot and resolve issues in development, testing, and production environments.

Must Have

• 5+ years of experience in backend development with Node.js and JavaScript/TypeScript.

• Strong experience designing and consuming RESTful APIs.

• Hands-on experience with AWS cloud services such as Lambda, API Gateway, DynamoDB, and S3.

• Familiarity with serverless frameworks and infrastructure as code (IaC) tools.

• Proficiency with CI/CD pipelines and DevOps practices.

• Test-Driven Development (TDD) mindset and proven experience applying it in projects.

• Experience with pair programming in Agile delivery teams.

• Experience with unit and integration testing using Jest, Mocha, or similar tools.

• Strong understanding of security, scalability, and performance in backend systems.

• Excellent problem-solving skills and attention to detail.

Nice to Have

• Knowledge of GraphQL, WebSockets, or event-driven architecture.

• Experience with Docker and Kubernetes.

• Understanding of monitoring tools like CloudWatch, Prometheus, or Datadog.

• Exposure to front-end frameworks such as React for full-stack collaboration.

• Background in Agile methodologies and working in cross-functional teams.

About the Project

A leading no-code platform provider from the US has partnered with us to strengthen their development team. This platform enables businesses and individuals to build web and mobile applications without traditional coding, offering a user-friendly drag-and-drop interface.

We help the client to modernise their global solution and enhance it with the new features. Successful candidates will be working alongside the international team.

Required Skills

• minimum 2 years of experience;
• experience with Node.js based web services;
• experience with integration with front-end frameworks (preferably React);
• ability to quickly grasp new technologies;
• ability to communicate with the clients directly;
• English level — Intermediate+ for verbal communication and correspondence with our UK and US clients.

Responsibilities

Within this role the new members will be responsible for:

• analysis and technical decomposition of tasks;
• estimation and planning;
• new features implementation;
• regular code reviews;
• collaboration and knowledge sharing with the team members.

What We Offer

• remote work with a high degree of involvement in teamwork;
• a contract-based employment (B2B);
• work within an organised, independent, and motivated team that adheres to high standards for the quality of software solutions and code;
• opportunities to work on diverse tasks, deepening your experience quickly;
• collaboration in a team that is passionate about their work, and has an open knowledge sharing culture;
• modern project’s infrastructure (including CI/CD pipelines);
• technical support and assistance provided by our internal IT services department.

Expectations

This is what is expected from the successful candidate on this position:

• a minimum of 1 year of commitment; 
• full-time work;
• synced schedule with a team (European time zones);
• participation in regular meetings: daily sync-ups, planning sessions, code review.
   

Recruitment Stages:

• application registration
• technical quiz
• technical interview
• interview with PM of relevant project
• offer

GR8 Tech builds B2B iGaming platforms for operators who play to lead.

We deliver full-cycle, high-impact tech designed to scale — from seamless integrations and expert consulting to long-term operational support. Our platform powers millions of active players and drives real business growth. Call it what it is: the iGaming Platform for Champions.

With 1000+ GR8 people across locations and time zones, we don’t just ship technology — we help operators build success stories across brands, markets, and geos.
 

Our ambition drives us. Our people make it real.

If you’re a challenger in spirit and a champion in action — join us.
 

Why this role exists:

This role exists to build, evolve, and stabilize web platforms where performance, scalability, and reliability directly impact business outcomes.
You’ll help us ship and scale Node.js–based systems by owning backend and frontend components end to end — from design decisions to production delivery.
 

What you’ll drive:

Architecture & technical decisions

• Design and evolve backend and frontend architecture using Node.js and JavaScript.
• Apply architectural patterns (microservices, event-driven design) based on real constraints.
• Design systems with failure in mind, using resilience patterns like circuit breakers and rate limiting.

Delivery & execution

• Build, ship, and maintain backend services and web interfaces in production.
• Deliver new features end to end — from requirements to release.
• Optimize applications for performance, scalability, and reliability.
• Ensure high code quality through reviews, testing, and clean architecture.

Quality, testing & reliability

• Write and maintain unit, integration, and end-to-end tests.
• Improve test coverage and reliability of existing systems.
• Identify performance bottlenecks and drive optimization initiatives.
• Ensure secure coding practices and basic application security.

Collaboration & product delivery

• Partner with product managers, designers, and engineers to deliver business outcomes.
• Translate requirements into technical solutions with clear trade-offs.
• Contribute to planning, estimation, and iterative delivery in Agile environments.
• Share technical context and documentation with the team.

Team contribution & growth

• Mentor junior engineers and support technical growth within the team.
• Participate in technical discussions and continuous improvement initiatives.
• Stay current with modern JavaScript, Node.js, and web development practices.
   

What makes you a GR8 fit:
 

Must-have

• 3+ years of commercial experience with Node.js and JavaScript.
• Strong knowledge of modern JavaScript (ES12+), async programming, and Node.js internals.
• Experience building RESTful APIs with NestJS, Express, Fastify, or similar frameworks.
• Solid understanding of web fundamentals: HTTP, browser rendering, SPA architecture.
• Experience with SQL databases, basic data modeling, and queries.
• Hands-on experience with testing (unit/integration) and CI/CD pipelines.
• Comfortable working independently and owning features end to end.
• Intermediate or higher level of English, fluent in Ukrainian or Russian. 
   

Nice-to-have

• Experience with Docker and basic Kubernetes concepts.
• Familiarity with event-driven systems and message-based architectures.
• Exposure to cloud platforms (AWS preferred).
• Experience with Webpack, module federation, and bundle optimization.
• Monitoring and performance tooling (Prometheus, Grafana, ELK).
   

Why you’ll love working here: 
 

Benefits Cafeteria — annual budget you allocate to:

Sports • Medical • Mental health • Home office • Languages.

Work-life & support

• Paid maternity/paternity leave + monthly childcare allowance.
• 20+ vacation days, unlimited sick leave, emergency time off.
• Remote-first + tech support + coworking compensation.
• Team events (online/offline/offsite).
• Learning culture with internal courses + growth programs.
   

Our culture & core values:

GR8 Tech culture is how we win — through trust, ownership, and a growth mindset. We move fast, stay curious, and keep it real, with open feedback, room to experiment, and a team that’s got your back.

FUELLED BY TRUST: we’re open, honest, and have each other’s backs.

OWN YOUR GAME: we take initiative and own what we do.

ACCELER8: we move fast, focus smart, and keep it simple.

CHALLENGE ACCEPTED: we grow through challenges and stay curious.

BULLETPROOF: we’re resilient, ready, and always have a plan.

This is us

At Avenga, we believe that human creativity empowers technology that matters. Operating globally, our 6000+ specialists provide a full spectrum of services, including business and tech advisory, enterprise solutions, CX, UX, and UI design, managed services, product development, and software development.

This is the job
Our client operates in the telecom domain, building enterprise-grade digital platforms and integration services. The project focuses on developing Backend-for-Frontend (BFF) services and core backend engines that enable seamless integration between frontend applications and large-scale enterprise systems such as CRM, billing, and CMS platforms.

You will work in a cloud-native AWS environment with modern DevOps practices, contributing to scalable, secure, and business-critical solutions.

This is you

• 5+ years of professional software engineering experience
• Strong backend development experience with Node.js and NestJS ( or or one of the following similar frameworks:
  Fastify, Express, Adonis)
• Solid knowledge of TypeScript
• Hands-on experience with Kubernetes, Docker, Helm
• Experience with AWS cloud services and Amazon EKS
• Infrastructure as Code with Terraform
• Experience building large-scale, business-critical applications
• Enterprise system integration (CRM, APIs, distributed systems)

• Strong understanding of algorithms and data structures

   

  This is your role

• Design and develop high-performance backend services using Node.js and NestJS
• Build and maintain RESTful APIs and microservices
• Develop Backend-for-Frontend (BFF) integration layers
• Integrate with enterprise systems (CRM, internal APIs, headless CMS)
• Implement Infrastructure as Code using Terraform
• Provision and manage environments via GitOps, CI/CD, Helm, ArgoCD, and Amazon EKS
• Participate in code reviews and Agile Scrum ceremonies
• Ensure secure, scalable, and reliable enterprise solutions

About Us:

LineUp is a fast-growing IT outsourcing company with 13 years of experience. We are currently looking for a Senior Backend Develope to join a long-term product project.

You will become part of the Smart City ecosystem - a large-scale software product for the Middle East market. This is a fully agile, product-oriented environment with real users and a tangible impact on urban infrastructure.

Key Responsibilities:

• Architect and develop robust backend applications using Node.js and NestJS in a monorepo and microservices environment.
• Design, implement, and manage highly scalable database solutions using PostgreSQL (AWS RDS) and caching strategies with Redis.
• Develop and maintain integrations with various AWS services including SQS, S3, Lambda, IAM, System Manager, EC2, and EKS/ECS for cloud-native applications.
• Manage and optimize containerization and deployment processes with Docker, including building and pushing to registries, and implementing CI/CD pipelines using GitLab runners.
• Implement monitoring and observability using Prometheus and Grafana to ensure system reliability and performance.
• Collaborate with stakeholders to gather business requirements and translate them into technical solutions, driving discussions at the architecture and implementation levels.
• Lead troubleshooting and debugging efforts to resolve complex backend issues and optimize system performance.
• Stay current with the latest technologies and best practices, and promote continuous learning and self-development within the team. Mentor other team members, providing guidance and sharing your knowledge.
• Participate in the agile development process, contributing to scram events, fostering a collaborative and cross-functional team environment.
• Development and maintenance of a high-level engineering culture within the team.

Qualifications:

• Minimum of 5 years of experience in backend development with strong proficiency in Node.js, NestJS, and related technologies.
• Expertise in building and managing microservices architectures and a monorepo setup.
• Extensive experience with PostgreSQL (AWS RDS), Redis, and other backend data storage and caching technologies.
• Strong proficiency in AWS cloud services including but not limited to SQS, S3, Lambda, IAM, EC2, and EKS/ECS.
• Solid understanding of Docker, CI/CD pipelines, and experience with GitLab runners.
• Experience with monitoring tools such as Prometheus and Grafana.
• Proven ability to document backend architectures, designs, and processes clearly and comprehensively.
• Excellent problem-solving skills and attention to detail, with a passion for creating high-quality, performant code.
• Ability to work effectively both independently and as part of a team in an agile environment.
• Strong communication skills with the ability to interact professionally with stakeholders at all levels.
• English at Upper-Intermediate level and above.

What We Offer:

• A collaborative and innovative work environment.
• Professional development opportunities.
• The chance to work on exciting and challenging projects.
• A supportive company culture.

😊 About us

ZentixSoft is a young British-Ukrainian full-cycle IT company where we value People over processes. We are looking for "Architectural Heavyweights"—engineers who don’t just write code but design the foundations of high-scale financial ecosystems.
 

📝 About the project & conditions

We are embarking on a long-term mission (1.5 years+) to build and scale a production-grade Finance Ecosystem. This isn't just about CRUD operations; it’s about distributed systems, transactional integrity, and event-driven magic. 
 

• Format: Full-time, Outstaff.
• Location: 100% Remote.
• Duration: Long-term (1.5+ years).
• Start: ASAP.
   

😉 What we expect from you

• 💎 Node.js Authority: 5 years of backend experience with a deep mastery of TypeScript, Express, and NestJS.
• 🏗️ System Architect: Proven track record of architecting distributed systems from scratch using Clean Architecture principles.
• 📡 Distributed Expert: Deep understanding of Microservices, Event-driven systems (Pub/Sub), and the Transactional Outbox pattern.
• 🏦 Finance Veteran: Solid experience within the finance domain—you understand the stakes of high-consistency data.
• 🛠️ Cloud & Data Pro: Hands-on experience with GCP (Cloud Run), Terraform (IaC), and complex data layers (Spanner, PostgreSQL, Redis, Elastic).
• 🌍 English: Strong communication skills (at least Intermediate High/Upper-Intermediate).
• 🧠 Ownership Mindset: You lead by example, mentor others, and take full responsibility for technical decisions.
   

🚀 Your responsibilities

• Drive Architecture: Lead the design and implementation of scalable backend services and microservices.
• Technical Direction: Set the standard for code quality, system reliability, and long-term maintainability.
• Service Structuring: Build and optimize event-driven workflows to ensure 99.9% reliability in a financial context.
• Infrastructure as Code: Work closely with the DevOps side to manage environments via Terraform.
• Collaboration: Act as a bridge between business requirements and complex technical execution.
   

🌟 Would be a big plus

• 🐍 Python: Experience with FastAPI for specific service components.
• ⚡ Performance Tuning: Experience optimizing high-load systems and complex database queries.
   

✨ What awaits you at ZentixSoft

• 📈 Professional Growth. Individual development plans for your career path.
• 💵 Salary Review. A structured policy to ensure your compensation grows with your impact.
• 🎓 Knowledge Sharing. Access to workshops and internal training.
• 🗣️ English. We fully cover classes with a teacher to keep your communication sharp.
• ⚖️ Work-Life Balance. We work without overtime and respect your personal time.
• 🦾 Trust. Zero micromanagement—only freedom in making high-level technical decisions.
   

📩 If you are ready to take ownership of a large-scale financial engine — send your CV!

Founded in 2012, Playson is a leading iGaming supplier recognised worldwide. We provide our customers with a high-end, microservice-based platform-as-a-service designed to process billions of financial transactions per day. We provide a cross-regional setup and are chasing latency reduction down to zero. We highly invest in delivering the best game experience and smooth connection regardless of the internet coverage and bandwidth of the game clients.

Role Overview:

One of our teams is looking for a Principal Backend Engineer to participate in developing our cutting-edge solution, where milliseconds matter. Our problem statement is not straightforward, as we aim to achieve high-end results in all important technical aspects of our business: Best availability | Lowest possible latency | The most efficient resource usage.

If you’re a product-passionate person, your mind is keen to solve deep tech engineering problems, and you have a fast "PoC first" approach with a deep sense of ownership, we would love to hear from you.

Why Join Us?

• Be a key player in a major tech transformation.
• Work on projects that impact millions globally.
• Enjoy a supportive, flexible work environment.
• Grow your skills with continuous professional development opportunities.

To succeed in the role, you will have:

• Solid experience with Node.js/TypeScript is ideal, but we also welcome experts in other OOP languages such as Java, Python, C++, C#, or Go.
• Strong understanding of Async approaches
• Experience with Messaging systems like Kafka, RabbitMQ
• Experience in distributed systems
• Experience with RDBMs (MySQL, PostgreSQL etc.), CDBMs (Redshift, ClickHouse etc.), NoSQL (DynamoDB, MongoDB, etc)
• Experience in writing e2e & unit tests
• Experience with development production-ready solutions

Preferred additional qualifications:

• Understanding of enterprise development patterns
• Experienced with large-scale microservices architecture
• Experience with cloud providers (AWS, GCP, etc.)
• Experience with Kubernetes
• Active performance observation
• Gambling domain experience
• Understanding of application security and industry standards, its best practices

• A degree in Computer Science or related field

   

What will you be doing?

• Become part of a full-stack team of the product, which is positioned as an independent part of the platform
• Develop brand new features with a distributed team and be proactive in terms of proposing new ideas
• Develop a scalable high load system, with financial resultsʼ responsibility
• Participating in on-call rotations within the squad to help ensure the reliability and availability of our systems.
• Code and Architectural review
• Proactive position in solution development, processes improvements

• Handle complex business problems that might arise during solution development and provide field support with creative and rapid solutions

   

What you get in return:

• Competitive Salary and annual performance/salary reviews
• Realistic and transparent Bonus system (15-20%), paid quarterly
• Unlimited paid vacation leave & paid sick leave
• Flexible work schedule to accommodate your needs
• 100% Remote
• Medical Insurance for you +1.
• Financial Support for Life Events & Extended Parental Leave
• Paid professional development courses and trainings

• B2B contracts

   

The recruitment process includes the next steps:

1. HR Interview (30-45 min)

2. Meeting with a Product Owner (60 min)

3. Technical interview with live coding (90 min)

4. Final Interview with CTO & Software Architect (60 min)

Build the real-time AI governance control plane trusted by global enterprises

Who we are:
Adaptiq is a technology hub specializing in building, scaling, and supporting R&D teams for high-end, fast-growing product companies in a wide range of industries. 

About the Product:

You’ll work on a cloud-native AI governance platform designed to intercept, classify, and control high-velocity AI interactions in real time — without revealing the client’s identity.

The platform analyzes user prompts, AI responses, coding-agent activity, and enterprise search outputs flowing across HTTP streams, IDE extensions, LLM APIs, and internal microservices. It applies need-to-know access filtering, policy transformations, and audit controls within sub-second decision windows, ensuring sensitive knowledge never crosses boundaries it shouldn’t. As enterprises adopt generative AI at scale, traditional access-control models break down. This product introduces a new security layer purpose-built for AI systems, enabling organizations to innovate quickly while maintaining strict governance over their data and models.

You will be joining a core engineering team that is building a platform with real industry impact — one shaping how AI responsibly integrates into the modern enterprise.

About the Role:

We are looking for a Senior Full-Stack Engineer (Backend-focused) to join a small, high-caliber team developing the core components of this real-time governance system.

Your primary focus will be backend engineering with Node.js/TypeScript — building high-performance services, scalable APIs, distributed processing flows, and policy-evaluation pipelines. When needed, you’ll contribute to the React-based frontend to deliver features end-to-end. You will take ownership of major technical decisions, collaborate with engineering, product, DevOps, and AI/security

Why This Role Stands Out:

• Mission-critical product defining how enterprises safely adopt AI
• Deep engineering challenges — real-time pipelines, distributed flows, policy engines
• Modern stack: Node.js, TypeScript, React, PostgreSQL, Docker, cloud-native tooling
• High degree of autonomy and technical ownership
• Work closely with an elite product and AI/security team
• Fully remote, flexible environment with strong operational support

What You Bring:

• 10+ years of professional software development experience
• 5+ years of hands-on experience with Node.js and TypeScript
• Strong knowledge of backend architecture, distributed systems, and scalable service design
• Proven experience working with SaaS-based systems
• Experience with relational databases (PostgreSQL or similar)
• Experience with containerized/cloud-native environments
• Practical React experience sufficient for full-stack delivery
• Deep understanding of JavaScript/TypeScript runtime patterns and performance considerations
• Strong communication skills and comfort working asynchronously in a distributed team
• Ability to thrive in a fast-paced, high-ownership environment
• Excellent English (written and spoken)

Nice to Have:

• Experience with CI/CD pipelines (GitHub Actions or similar)
• Experience with Python and/or Go
• Production experience with large-scale TypeScript-based backend systems
• Exposure to LLM/AI products (LLM APIs, vector DBs, orchestration frameworks)
• Experience integrating ML/AI models into production systems
• Background in B2B or security-focused products
• BSc in Computer Science or related field

Why Us?

We provide 20 days of vacation leave per calendar year (plus official national holidays of a country you are based in).

We provide full accounting and legal support in all countries we operate.

We utilize a fully remote work model with a powerful workstation and co-working space in case you need it.

We offer a highly competitive package with yearly performance and compensation reviews.

We are building a high-performance, real-time slot gaming platform and are looking for a Senior Backend Developer who will take ownership of our entire backend direction.

🧩 What you’ll do

• Own and drive the backend direction of the company as one of the key technical leaders;
• Design and implement new game mechanics on top of our existing PGS, extend its capabilities, and contribute to core gameplay engine development;
• Architect scalable, secure, and high-performance backend services using Node.js and TypeScript;
• Work closely with Game Logic, Frontend, and DevOps teams to ensure seamless integrations, real-time performance, and platform-wide consistency;
• Define backend engineering standards and enforce best practices across code quality, architecture, and performance;
• Design and maintain backend infrastructure: schemas, caching, messaging flows, microservices, gateways;
• Participate in roadmap planning, technical decision-making, and architectural discussions as the platform evolves;
• Support a rapidly growing product and engineering environment — we are scaling fast, and you will play a major role in that growth.

🧠 What you bring

• 5+ years of backend development experience, including ownership of complex systems or features;
• Strong expertise with Node.js + TypeScript and modern frameworks (Fastify, Nest.js);
• Advanced knowledge of SQL and NoSQL databases: PostgreSQL, MongoDB, Redis;
• Solid experience with message brokers (RabbitMQ or Kafka) and queue-based, event-driven design patterns;
• Deep understanding of distributed systems, microservices, and real-time communication (WebSocket, Socket.io);
• Experience building high-performance APIs, async flows, caching strategies, and scalable architectures;

• Confident with CI/CD, Git, automated testing (Jest), and monitoring/observability tools (Grafana, Loki, Tempo).

   

💎 Nice to have

• Knowledge of PHP/Laravel or experience with other backend ecosystems;
• Familiarity with AWS, Docker, Kubernetes, containerized deployments;
• Experience with RNG, platform integrations, or the iGaming ecosystem.
   

🎁 Benefits

— 21 vacation days + 5 extra day-offs annually;
— 12 paid sick days;
— Fully remote format — work from anywhere you feel productive;
— Flexible schedule: start your day anytime between 08:00–12:00 CET;
— Fixed budget for health insurance and gym/fitness;
— We provide all required work equipment;
— Zero bureaucracy and direct communication with founders and C-level;
— Minimal meetings, async-friendly workflow;
— Startup energy: fast motion, creativity, and tight-knit communication;
— Business trips and team meetups several times per year;
— Multiple salary payout options (flexible formats);
— …And many more perks unlocked after we hit break-even.

The Role

This is a software engineering role, not a traditional IT or DevOps position. We are looking for a Platform Engineer who loves to build products for other developers.

Your "product" is the entire developer experience (DevEx) for our R&D department. Your "customers" are all the other engineers in teams like Tenants, Assets, and Market. Your mission is to build the tools, abstractions, and self-service platforms that make our developers faster, safer, and more productive.

You won't just run RabbitMQ; you will build the "Queue (RabbitMQ) as-a-platform" that other teams consume. You won't just use an API gateway; you will build and maintain the "API gateway as-a-platform" that defines our standards. You will write high-quality, scalable code (using our company stack: TypeScript, Node.js, Nest.js) to create the internal tools that power our entire R&D organization.

While this is a remote-first role, you should be based in a CET-adjacent timezone to collaborate effectively with colleagues. You can also expect to travel for periodic in-person team gatherings.

What You'll Do

• Build 'as-a-Platform' Services: Design, code, and maintain the self-service platforms that all our engineers rely on. This specifically includes:
  • API gateway as-a-platform
  • WebSocket API as-a-platform
  • Queue (RabbitMQ) as-a-platform
  • User log processing as-a-platform
• Engineer the CI/CD Platform: Act as a core developer and maintainer of our CI/CD platform, building reusable pipelines, deployment patterns, and automation.
• Improve Developer Experience: Build the tooling and automation that defines and improves our development experience, from local setup to production.
• Infrastructure as Code (IaC): Work with the team to manage and scale our foundational AWS services (k8s, databases, cache, vault) using code (e.g., Terraform).
• Maintain Standards: Help build the tooling that defines and enforces API standards, version control policies, and best practices.

• Reliability: Participate in on-call rotations and help lead incident response procedures and post-mortems.

   

What We're Looking For

• Software Engineer First: You are a strong software engineer with 3+ years of experience, preferably with TypeScript/Node.js, who is passionate about infrastructure.
• Platform Experience: You have a proven track record of building internal tools, developer platforms, or CI/CD systems. You treat "infrastructure" as a "product."
• DevOps/Infra Skills: Deep, hands-on experience with AWS, Kubernetes, and IaC (e.g., Terraform, Pulumi).
• CI/CD Expert: Experience building and managing complex CI/CD pipelines (e.g., GitLab CI, GitHub Actions, Jenkins).
• "Customer" Empathy: You have a product mindset and genuine empathy for your "customers" (other developers) and their experience.
• Location: Based in a timezone adjacent to Central European Time (CET) for optimal team collaboration.
• Problem Solver: You are an autonomous problem-solver who can take a high-level goal (e.g., "we need a better API gateway") and own it from design to production.

Bonus Points

• Experience building custom API gateways or platform abstractions.
• Deep knowledge of our specific infra stack: RabbitMQ, PostgreSQL, Redis.

• Experience in a FinTech or high-security environment.

   

What We Offer

• Foundational Role: A unique opportunity to be a founding engineer building the entire developer platform for a high-growth FinTech.
• High-Impact: Your work will directly accelerate every other engineer in the company.
• Clear Ambition: The chance to join a company with a clear goal of becoming the #1 crypto platform in the EU.
• Greenfield Culture, Brownfield Code: A rare chance to join a new company culture with no baggage, while solving the interesting technical challenges of a mature product.
• Flexibility & Connection: A 100% remote-first role with periodic, all-expenses-paid team gatherings and a new hub in Ticino, Switzerland.
• Compensation: A competitive salary and benefits package.

Building a sophisticated engine that converts Natural Language instructions into executable trading scripts (MQL5 and NinjaScript).

You will design the system that takes user intent (JSON), validates the trading logic, and mathematically generates error-free C# (NinjaScript) and C++ (MQL5) source code. You don't need to be a Wall Street quant, but you must love solving complex logical puzzles and building systems that require strict data validation.

Requirements:
● 5+ years in software development with a focus on complex logic and architecture. Strong background in backend system design, memory management, and data structures.
● Compiler Theory: Solid understanding of lexing, parsing, Abstract Syntax Trees (AST), and code generation principles.
● "Meta-Programming" Mindset: Experience building tools that generate other code, parsers, rule engines, or complex state machines.
● Strict Logic: You understand that "floating point math" is tricky and that "undefined defaults" cause bugs. You write defensive, deterministic code.
● Core Stack:  Expert proficiency working in polyglot environment: Strong C#, C++ Background: You must understand memory management, pointers, and strict typing to generate valid code for trading platforms. (NinjaScript is C# based; MQL5 is C++ based). Node.js (NestJS/TypeScript) for the overall system infrastructure. 
● Architecture: Ability to design systems that handle code translation and validation with high reliability.
● English: Intermediate Strong (technical communication is key).

Responsibilities:
● NL-to-Code Conversion: Design and implement the core logic for translating natural language into functional MQL5 and NinjaScript code.
● System Architecture: Establish the backend architecture using our default Node.js stack for non-conversion services.
● Quality & Validation: Ensure the generated code is syntactically correct, secure, and optimized for trading environments.
● Research: Stay at the forefront of automated trading and language processing technologies.

Nice to have:
● Trading Platform Expertise: Deep hands-on experience with MQL5 (MetaTrader 5) and NinjaScript (C#-based for NinjaTrader).
● Cloud & Data: Experience with AWS (Serverless, Aurora RDS, PostgreSQL, Cognito).
● Rust: Experience with Rust is a significant plus (especially for building high-performance conversion engines or parsers).
● LLM Integration: Experience working with LLMs for code generation and fine-tuning.