Jobs

We’re looking for a Backend Developer with strong expertise in Medusa.js v2 and Next.js. You’ll help us build and extend modern eCommerce platforms—developing custom plugins, integrating third-party systems, and enhancing the admin dashboard for advanced business needs.

What you’ll do

• Develop and extend Medusa.js v2 backends for eCommerce projects.
• Create custom plugins and modifications to fit unique business logic.
• Integrate external systems (ERP, PIM, CRM, payment providers, logistics, etc.).
• Extend and customize the admin dashboard for better workflows and management.
• Collaborate with frontend developers and project managers to deliver scalable, high-end digital commerce solutions.
• Ensure code quality, security, and performance across projects.
•  

What we’re looking for

• Proven experience with Medusa.js v2 in production projects.
• Strong skills in Next.js and modern JavaScript/TypeScript.
• Experience building plugins, APIs, and custom modifications in Medusa.
• Familiarity with headless commerce architectures and integrations.
• Experience customizing or extending Medusa’s admin dashboard.

• Strong problem-solving skills and ability to work in a collaborative, agile environment.

   

Nice to Have

• Knowledge of databases (Postgres, Redis) and cloud platforms (AWS, Vercel).
• Experience with CI/CD and scalable deployments.

• Understanding of UI/UX principles when extending admin dashboards.

   

Why join us

Work on high-end eCommerce platforms where flexibility, performance, and design are key. You’ll join a team that values clean architecture, composable commerce, and creating solutions that scale.

Apply: Share your portfolio, GitHub, or examples of Medusa.js projects you’ve worked on (plugins, integrations, or dashboard extensions).

Our client is a fast-growing technology company that helps retailers and suppliers manage and share product information more effectively. Their cloud-based platform keeps product data, pricing, and inventory accurate and up to date across websites, kiosks, and other sales channels. By making product catalogs easy to use and always current, they help businesses improve customer experiences, increase sales, and simplify daily operations.
 
About the Role:
We have an opportunity to potentially staff two engineers for one of our active prospects. In this role, you will be working within the core stack - Node.js, TypeScript, MongoDB, and AWS - to design and deliver high-performance backend services and APIs. You will play a central role in building and optimizing large-scale, data-intensive applications that power digital catalog and content distribution for retailers and suppliers

Responsibilities:

• Design, develop, and optimize backend services and APIs with Node.js + TypeScript.
• Work extensively with MongoDB for schema design, queries, and performance tuning.
• Deploy, scale, and monitor applications in AWS cloud environments.
• Ensure best practices in code quality, testing, and DevOps pipelines.
• Collaborate with frontend and product teams to deliver end-to-end features.
   

Requirements:

• 6+ years of backend development experience.
• Expert in Node.js + TypeScript with strong MongoDB knowledge.
• Hands-on experience with AWS services (EC2, Lambda, S3, API Gateway, etc.).
• Strong understanding of distributed systems, API security, and performance optimization.
• Excellent problem-solving and communication skills.
   

We Offer:

• Competitive market salary.
• Fully remote work.
• Convenient and somewhat flexible working hours.
• 28 days of paid time off per calendar year.
• The chance to work on meaningful, socially valuable products alongside a highly professional, US-based international team.
• Interesting technical challenges with opportunities to grow and learn.

About the Role
 

We’re looking for a highly skilled Senior Node.js Developer to join our partner’s engineering team on an outstaff basis. In this role, you’ll be responsible for designing, building, and scaling backend services using modern technologies and cloud platforms. You’ll work on high-performance, message-driven architectures and ensure reliable, observable, and scalable systems that power core business solutions.
 

This is an exciting opportunity to work with cutting-edge AI-assisted development tools (Cursor, Lovable, Bolt.new) and deliver high-quality software that makes a real impact.
 

Requirements
 

- 6+ years of experience in backend development with Node.js & TypeScript (expert level)

- Hands-on with React

- Proven expertise in system architecture & scalability

- Strong experience in API design & delivery

- Hands-on with AI-assisted coding tools: Cursor, Lovable, or Bolt.new (prompt engineering, code generation, refactoring)

- Advanced experience with message brokers

- Expert knowledge of SQL databases (design, optimization, scaling)

- Solid experience with CI/CD pipelines (GitHub Actions, GitLab CI, Jenkins)

- Proficiency with containers & orchestration (Docker, Kubernetes)

- Advanced cloud experience (GCP, AWS, or Azure)

• Project Description:

  One of the biggest UK rail network companies operating with rail infrastructure and asset management has a need to develop and support enterprise-level information systems.
  
  Align the data science initiatives with the overall business goals. This could range from improving customer satisfaction, enhancing operational efficiency, to driving sales growth.

   

• Responsibilities:

  Software development
  Unit/integration testing
  Azure environment configuration
  Customer communications

   

• Mandatory Skills Description:

  3+ years of experience
  Azure App service implementation and deployment.
  Fastapi and asyncio (asynchronous programming)
  Auth (OAuth, JWT, Microsoft authentication flow).
  Docs (OpenAPI, Swagger).
  SQL Alchemy or alternative DB integration libraries.
  Python, Pytest
  JS, Node
  SQL
  GIT and collaborative workflows
  Bash, shell scripting.

   

• Nice-to-Have Skills Description:

  Azure Container Management (docker, container registries, CI/CD to app services).
  CI/CD approaches
  Security across Azure (key vault, app service configuration, auth).
  Virtual Machine deployment
  Familiarity with storage accounts and their components

   

• Languages:
  • English: B2 Upper Intermediate

Requirements:
— 2+ years of commercial experience in backend development with strong proficiency in Node.js (NestJS, Express).
— Solid knowledge of databases: PostgreSQL, SQL (design, optimization, queries, indexing).
— Understanding of server-side processes: scalability, performance optimization, and efficient database interaction.
— Experience with Prisma ORM and Docker.
— Proficiency in TypeScript.
— Familiarity with REST APIs and WebSockets.
— Experience with Git for version control.
— Understanding of security best practices.
— Strong team collaboration skills.
— Ability to manage tasks effectively and set priorities.

As a plus:
— Experience with React (basic understanding for integration, not core responsibility).
— Experience working on AI-driven projects.
— Knowledge of modern AI API integration (e.g., OpenAI, LangChain, Pinecone).
— Experience in blockchain projects and integrations (wallet connect, etc.).
— Basic knowledge of cloud providers (AWS, GCP, Azure).

BigD is seeking a talented Strong Junior/Middle Backend developer to join our dynamic team. BigD is an iGaming operator focused on the LATAM (top brand). But that’s not all — we also have a thriving Affiliate Program, a handy Payment solution, and an AI user acquisition solution. We are a big family of over 500+ creative minds.

What to do:

• Develop and maintain backend services using Nest.js and TypeScript.
• Design and implement RESTful/GraphQL APIs for internal and external use.
• Work with message brokers (RabbitMQ / Kafka) to handle asynchronous communication and event-driven processes.
• Build and optimize database schemas in PostgreSQL and MongoDB.
• Use Redis for caching and data optimization (good to have).
• Ensure application performance, scalability, and reliability in a high-load environment.
• Write unit and integration tests to maintain code quality.
• Participate in code reviews and contribute to team knowledge sharing.
• Collaborate with frontend developers, DevOps, and product managers to deliver features on time.
• Troubleshoot and debug production issues.
   

We are looking for:

• 1.5–3 years of commercial experience as a Backend Developer (Node.js / Nest.js).
• Strong knowledge of TypeScript and JavaScript (ES6+).
• Experience with Nest.js or other Node.js frameworks.
• Hands-on experience with RabbitMQ or Kafka.
• Solid knowledge of SQL (PostgreSQL) and NoSQL (MongoDB).
• Basic understanding of Redis (or willingness to learn).
• Understanding of microservices architecture and event-driven systems.
• Familiarity with Docker, CI/CD pipelines, and cloud environments (AWS/GCP/Azure is a plus).
• Knowledge of software design principles (SOLID, clean code).
• Experience with Git and collaborative workflows (GitFlow, Pull Requests).
  
  Working conditions:
• Direct communication with the core TEAM
• 28 calendar days of vacation
• Paid sick leave
• Sports compensation
• Compensation for courses and training
• Day off for birthday
• Flexible work schedule
• Regular salary reviews
• Salary paid at a favorable rate
• Non-toxic work environment, free of bureaucracy
• Stable salary payment

Requirements
 

Frontend:

• Experience React.js
• Knowledge of JavaScript ES6+ and TypeScript
• Experience with Zustand and React Query
• Experience Shadcn or other similar UI libraries

Backend:

• Experience with Nest.js or similar frameworks/libraries
• Experience with PrismaORM or DrizzleORM
• Experience with PostgreSQL or other relational database
• Knowledge of SOLID and design patterns

Nice to Have

• Experience with AWS/Google Cloud/Azure (any of three)
• Experience with GitHub Actions or other CI/CD tools

• Experience with 3rd-party API/services

   

Responsibilities

As a Software Engineer at LNOKS, you will:

• Develop and maintain high-quality software solutions
• Write clean, efficient, and maintainable code
• Collaborate closely with team members and clients
• Participate in the full software development lifecycle
• Troubleshoot, debug, and optimize application performance
• Embrace Agile methodologies and participate in planning, daily stand-ups, and retrospectives
• Stay updated with the latest trends and best practices in software development
• Take ownership of projects and be accountable for your work
• Align technical decisions with business goals and client success
• Propose creative solutions to complex problems

Who We're Looking For

• Strong problem-solving skills and attention to detail
• Excellent communication skills and ability to work in a team
• Passion for learning and adapting to new technologies
• Customer-oriented mindset and ability to understand business requirements
• A proactive approach to identifying and solving problems

This is a fantastic opportunity to join a fast-growing company at the heart of the digital revolution. Our software product is revolutionising manufacturing through automation. We are trusted by global brands and work across sectors (mobility, consumer goods, machinery etc).
 

We have a talented and ambitious team. We value integrity and are passionate about our mission to revolutionise advanced manufacturing.

This is your opportunity to:
● Be part of a fast-growing software product company in advanced manufacturing.
● Learn and fulfil your potential in an open, knowledge-driven culture.
● Share in our ambitious vision and make a meaningful difference towards autonomous
manufacturing.

Responsibilities:
● Development of new features and new parts of the app.
● Work in a cross-functional Scrum team alongside Frontend and QA Engineers.
● Maintaining, improving and extending existing functionality.
● Сonstantly improving code organization and evolving application design.

You will be joining a well-versed team if you have:
● Bachelor’s Degree or Master’s Degree in Computer Science.
● Minimum of three years of experience in Node.JS development.
● Nice to have: 0.5 year of experience in React.JS development.
● Experience with Sequelize, PostgreSQL, database design, microservices.
● Understanding of CI/CD.
● Git branching strategies.
● Scrum Agile principles and processes.
● English level - Intermediate and higher.

Our tech stack: microservices, Node.JS, React.JS, PostgreSQL, Kubernetes, AWS

QIT Software is looking for a top-tier full-stack developer ( PART TIME)  to help us finish what we started. This is not an entry-level role. We're at 80% MVP completion with most UI and flows already designed. We need someone experienced who can quickly onboard, understand complex systems, and execute without babysitting.

You'll work directly with the founder of a fast-moving marketing tech startup. The platform is AI-driven and built to automate complex marketing workflows. If you know how to own a full-stack project and think through the “why” behind every workflow, this is for you.

Requirements: 
- 5+ years full-stack experience
- Pro in Next.js, React, Tailwind, PostgreSQL, Supabase
- Experience with real-world APIs (auth flows, webhooks, token refresh, etc.)
- Familiarity with AI integrations like OpenAI or Claude
- Can work independently and solve problems without constant guidance
- Excellent spoken and written English
- Reliable and responsive during business hours

Responsibilities:
- Build full-stack features using Next.js, React, Supabase
- Write and manage complex PostgreSQL queries and functions
- Implement and troubleshoot Edge Functions, triggers, background jobs
- Integrate with APIs (OpenAI, Claude, Meta, Google Ads, Stripe)
- Work from existing UI/UX and workflows, and fill in the logic gaps
- Own everything from backend logic to clean frontend UI
- Understand user experience and build with the final user in mind

We offer (After switching to the full-time):
- Revision of wages every year or on an individual basis;
- Accounting support and full payment of taxes by the company;
- 100% compensation for remote English lessons;
- 15 paid leaves (PTO) and public holidays.

English: b2

Node.js with TypeScript + MongoDB + AWS. This role requires an expert level of API development with MongoDB and deep knowledge of building scalable, high-performance backend services.
You will be responsible for designing and developing robust APIs, ensuring smooth data interactions, and delivering backend solutions that support our growing product.

Required skills
- Strong expertise in Node.js with TypeScript.
- Proven expert-level experience in MongoDB (schema design, query optimization, aggregation pipelines).
- Solid knowledge of AWS services for backend development (Lambda, S3, EC2, API Gateway, etc.).
- Experience building RESTful APIs and/or GraphQL APIs.
- Understanding of security, authentication, and authorization best practices.
- Ability to troubleshoot complex backend issues and optimize system performance.
- Strong communication and collaboration skills.Responsibilities
- Design, build, and maintain scalable APIs using Node.js (TypeScript).
- Work extensively with MongoDB, ensuring optimal schema design, indexing, and performance.
- Implement backend services that integrate seamlessly with AWS cloud infrastructure.
- Write efficient, testable, and reusable code while following best practices.
- Collaborate closely with frontend engineers, mobile developers, and product teams.
- Ensure backend systems are secure, performant, and scalable.
- Participate in code reviews and contribute to architectural discussions

Job Type: Full-time, Long-term

English level: B2+

About the Project

We’re building a GCP-based catalog of AI-generated images and videos for chat characters.

The system reuses previously generated media via vector search + reranking, and only generates new content when needed. Each result is post-analyzed (captions, detectors, embeddings) and stored with rich metadata tied to a specific character.

Responsibilities

Backend (NestJS + Prisma + Postgres/pgvector)

• Build APIs:
  • ComfyUI webhooks (generation_complete)
  • Recommendations, feedback/moderation, catalog states
  • Suggestions/popular/ask, gifts (wallet, purchase, fulfillment)
  • Precompute cancel logic
• Implement vector search (pgvector top-k) + MMR reranker (quality, novelty, diversity).
• Manage job queues & priorities: video_user, image_user, video_precompute (with cancellation).
• Design and maintain data models & migrations for media, tags, embeddings, feedback, jobs, gifts, wallets/transactions.

ML Integration

• Work with vLLM (Qwen2-VL 7B Instruct, JSON-only captions).
• Integrate OpenCLIP (text/image embeddings), YOLO, GroundingDINO, MMPose, PaddleOCR, OpenNSFW2.
• Support Whisper (optional).
• Build media analysis pipelines: keyframes, shots, OCR, pose, NSFW level, embeddings, perceptual hashes.
• Implement “human-in-the-loop” quality gate: like/dislike (+reasons), watch ratio for video; only approved outputs get indexed.

Must-Have Qualifications

• 4+ years of strong experience with NestJS and Postgres.
• Solid SQL schema design and migrations.
• Hands-on experience with pgvector (or Milvus/Qdrant) and cosine similarity search.
• Practical experience with CLIP embeddings and reranking (MMR, novelty, repetition penalties).
• Proven experience in ML/vision service integration (preferably vLLM) with strict JSON outputs.

Nice to Have

• Experience with ComfyUI API (including cancellation).
• Familiarity with Kueue/Volcano, HPA/KEDA.

TwinCore is an international IT company with offices in the USA and Europe. We specialize in .NET development and have successfully delivered 120+ projects in FinTech, e-commerce, healthcare, and logistics. Backed by a strong team, transparent processes, and steady growth since 2011.

We are currently looking for Node.js Backend Engineer for a six-month project under contract.

We expect you to have the following skills:

• Expertise in Node.js and building Backend-for-Frontend (BFF) services optimized for React/Next.js apps.
• Familiarity with authentication, caching strategies, and performance optimization for high-traffic retail platforms.
• Strong hands-on knowledge of GCP deployment pipelines, logging, and monitoring
• English proficiency at B1 level or higher

Our offer includes:

• Competitive salary based on the results of the technical interview (fixed rate)
• Full social benefits package
• Remote work
• No bureaucracy and progressive management
• Flexible working hours (you can adjust your active hours to fit your schedule)

We are looking for a Tech Lead Backend Engineer to join our high-performing team in the esports domain. This is a hands-on leadership role for someone who combines deep technical expertise with a strategic mindset, the ability to drive architectural decisions, and a passion for mentoring other engineers.

As a Tech Lead, you will be responsible not only for building scalable, high-performance backend systems but also for guiding the team’s engineering direction, enforcing code quality standards, and collaborating closely with Product, DevOps, and other stakeholders to ensure technical excellence and alignment with business goals.

Key Responsibilities

• Own the backend architecture and make high-level design decisions for scalability, maintainability, and performance.
• Lead the implementation of critical backend services using NestJS, focusing on modular architecture, dependency injection, and reusability.
• Design and optimize complex PostgreSQL schemas, migrations, and data modeling strategies, including handling semi-structured data via JSONB.
• Oversee the configuration and tuning of Elasticsearch for multilingual, full-text search, and ensure its reliable synchronization with PostgreSQL.
• Drive API design decisions (REST/GraphQL), ensuring they meet product and performance needs.
• Ensure high standards of security, rate limiting, and authentication/authorization strategies.
• Use Redis for advanced caching strategies, job queues, and rate-limiting mechanisms.
• Promote best practices in testing (e.g., using Jest), code reviews, and CI/CD workflows.
• Collaborate cross-functionally with UI/UX, QA, DevOps, and Product teams to align technical direction with business objectives.
• Mentor and support backend engineers through code reviews, pair programming, and architectural guidance.
• Identify and mitigate technical risks, manage tech debt, and contribute to the long-term tech roadmap.

Required Skills

• 7+ years of backend engineering experience, with at least 2+ years in a technical leadership or lead developer role.
• Proven track record in architecting and maintaining complex systems in NestJS, PostgreSQL, Elasticsearch, and Redis.
• Strong understanding of system design, data modeling, microservices, and distributed systems.
• Experience with event-driven architecture and asynchronous background processing.
• Deep understanding of performance tuning, scalability patterns, and security best practices.
• Strong communication skills – able to bridge the gap between technical teams and non-technical stakeholders.
• Passion for clean code, engineering excellence, and team development.
• English: B2+ or higher – comfortable leading discussions, giving feedback, and presenting ideas clearly.

We’re looking for a skilled Node.js Developer to join our team at Cruxlab!

If you’re passionate about coding, experienced with Node.js and Typescript, and excited to tackle new challenges, we’d love to have you on board. Let’s create something incredible together 🚀

What we’re looking for:

• 2+ year of experience with Node.js and Typescript (Sveltekit is a plus)
• Understanding of networking protocols (HTTP, Websockets)
• Knowledge of SQL (PostgreSQL)
• Experience with Docker containers
•  

Nice to have:

• Understanding of distributed systems (async tasks, message queues)
• Hands-on experience with Kubernetes
• Writing unit and integration tests
• Experience with cloud providers (Azure is a plus)
• Understanding how to analyze logs and tracing data
• Experience with OpenAI API

We offer:

• Fully remote work – work from anywhere in the world that suits you best.
• Flexible schedule – we care about results, not clock-ins.
• Competitive compensation – base salary + performance-based bonuses.
• Professional growth – internal resources and mentorship support.
• Learning support – we can cover 50% of the cost for approved courses or training related to new technologies or professional development.
• Paid vacation, sick leave, and public holidays – we care about your well-being and work-life balance.
   

Is a dynamic SaaS company, taking organizations on a transformative journey toward AI-driven business processes and services. With zero setup required, our conversational AI manages employees' requests, assists with queries, and accelerates the resolution of issues.
We are recognized as a leading innovator in the industry, featured in the Gartner Magic Quadrant for ITSM, and honored with AWS's prestigious Rising ISV Star Award. With over 4,000 clients across 140 countries and a daily impact on over 9 million end-users, we are committed to transforming the organizational service management landscape.
We are eagerly seeking a Senior Developer focusing on Node.js development. This role is not just about crafting and delivering exceptional products; it’s about pushing the boundaries of what's possible in AI-driven software development. As a Senior Developer in our team, you'll play a pivotal role in crafting cutting-edge solutions and pushing the boundaries of technology.
If you're passionate about innovation and eager to make a significant impact, this is the opportunity you've been looking for

Responsibilities:
 

• Lead the development and maintenance of high-quality software products using Node.js and SQL technologies.
• Design robust backend systems, user interfaces, effective APIs, and algorithms to drive our AI-driven initiatives forward.
• Guide and mentor developers, fostering their growth and development within our team.
• Collaborate with cross-functional teams to explore new AI, machine learning, and data science solutions, driving continuous innovation.

Requirements:

• 5+ years of hands-on experience in backend development in Node.js, including JavaScript and TypeScript.
• Deep expertise in SQL databases (MySQL).
• Familiarity with AI, machine learning, data science, and full-stack development-Advantage
• Strong analytical and problem-solving skills, with an ability to work in a dynamic, AI-centric environment.
• Excellent communication and teamwork skills
• Experienced with working in an agile, dynamic, fast-paced working environment