Jobs

Description of the project and team:

We are seeking a passionate and experienced Lead Backend Developer for one of our projects.

Your qualification:

• 10+ years of proven experience in backend development.
• Strong expertise in Node.js (Express), including event-driven architecture and event management.
• Solid understanding of REST API best practices.
• Proficiency in enforcing architectural best practices and working with MVC design patterns.
• Experience with ORM/ODM tools such as Sequelize and Mongoose.
• Strong skills in designing, implementing, and testing enterprise-level solutions.
• Proven ability to work independently and deliver without close supervision.
• Expertise in unit testing, requirement coverage matrix, and high-quality coding standards.
• Advanced knowledge of state management approaches, including Riverpod.

Preferred Qualifications:

• Previous hands-on experience with ADNOC projects.
• Deep understanding of ADNOC architecture, standards, and business processes.

• Familiarity with ADNOC Web Framework platform, Corporate BI APIs, and Fanar Application Frameworks.

   

Responsibilities:

• Design unit testing strategies and establish code coverage standards.
• Follow, understand, and continuously improve a defined software development process.
• Analyze project requirements and create high-quality technical designs and solutions.
• Conduct code reviews, ensuring delivery of robust and maintainable solutions.
• Participate in technical discussions and coordinate integration between different systems.
• Adhere to ADNOC corporate rules, standards, and working instructions.
• Evaluate and select the most suitable state management solutions; apply and enforce Riverpod best practices.
• Deliver high-quality project and technical documentation, ensuring clarity and completeness.
• Implement functionality independently with thorough testing using test cases.
• Participate in system integration and deployment tasks.

Description of the project and team:

We are seeking a passionate and experienced Backend Developer for one of our projects.

Your qualification:

• 5+ years of proven experience in backend development.
• Strong expertise in Node.js (Express), including event management.
• In-depth knowledge of REST API best practices.
• Strong experience with MVC patterns and architectural best practices.

• Experience with ORM/ODM frameworks (Sequelize, Mongoose).

   

Preferred:

• Previous ADNOC project experience to ensure familiarity with architecture and business processes.
• Knowledge of ADNOC web framework platform, Corporate BI APIs, and Fanar Application Frameworks.

Responsibilities:

• Handle coding and unit testing duties ensuring high-quality deliverables.
• Follow and improve a defined software development process.
• Read and analyze project requirements, create technical designs, and prepare documentation of high quality.
• Participate in integration and deployment tasks.
• Review and test deliverables, ensuring adherence to quality standards.
• Work independently with minimal supervision, implementing functionality and testing thoroughly.
• Participate in discussions to enforce architectural best practices.

As a Backend Engineer, you will play a pivotal role in designing and developing high-availability, enterprise-level applications. This position requires a strategic thinker with deep expertise in navigating complex datasets, modern cloud technologies, and solution architecture. 
You will be responsible for driving technical excellence, defining best practices, and ensuring the scalability, performance, and security of our systems. This role is purely technical, focusing on solving complex engineering challenges and contributing to the overall architectural direction of the organization.

Requirements

• Over 10 years of experience in software engineering.

• Strong technical proficiency in Node.js, Typescript and React.js, with significant experience in cloud deployment environments, especially AWS.

• Demonstrated proficiency encompasses the full development lifecycle of extensive software solutions, with a robust foundation in service-oriented architectures, web services, object-oriented programming principles, design patterns, the SOLID framework, and a thorough knowledge of data structures, algorithms, asynchronous frameworks, and distributed systems in a single cohesive expertise.

• Experience with Docker, Kubernetes, and CI/CD pipelines, demonstrating a solid understanding of DevOps practices.

• Experiences with databases, data processing, and data delivery services

• Expertise in developing microservices architecture, AWS Lambda functions, serverless applications, and managing large datasets within high-availability enterprise systems.

• Strong practical knowledge of solution architecture and experience with Agile processes.

• Strong communication and interpersonal skills are essential for fostering collaboration and driving team performance.

• Exceptional communication skills with the ability to not only articulate but also simplify complex technical concepts for a diverse audience, including executives, technical staff, and clients.

• Profound expertise in cutting-edge technologies, capable of guiding the evolution of the company’s technology stack and leading the adoption of innovative solutions.

• A strategic and visionary approach to technology, with the ability to foresee industry trends and integrate them into the company’s long-term plans, inspiring and motivating the team to embrace a culture of innovation.

• A relentless passion for continuous professional development and a commitment to staying ahead of the curve in technology, with the ability to adapt and lead the team through technological shifts.
 

Job responsibilities

• Collaborate closely with the Head of Engineering and Solution Architect, ensuring that engineering practices are in perfect alignment with our company’s strategic objectives.

• Maintain active involvement in coding and code reviews, exemplifying the highest standards of quality and workmanship.

• Advocate and implement Agile methodologies to promote innovation and collaboration across multidisciplinary teams.

• Act as a crucial liaison between the engineering team, stakeholders, and customers, using insights to develop tailored, impactful solutions.

• Take on the role of ‘Tech Lead,’ providing guidance, mentorship, and support, and furthering the professional development of your team.

• The role is hybrid, requiring collaboration with teams distributed geographically. This calls for excellent remote communication and coordination skills to manage and thrive in a diverse working environment.

We’re looking for talented Full-Stack Developers to join our team and help us launch several new projects, as well as strengthen existing ones. For example, one of our upcoming projects is with a $1B+ Bay Area company that is revolutionizing home robotics, where we are helping them build a SaaS solution to manage their devices.
 

Please note that we welcome frontend and backend developers, not only full-stack. Don’t hesitate to apply — during the selection process, we’ll decide on the role together. That said, full-stack engineers are especially encouraged to apply.

A Few Important Notes:
- This vacancy covers 3–4 projects, and we’ll decide which one is the best fit for you based on your experience.
 

- We offer a strong technical process and dozens of internal guidelines. 

- You’ll have plenty of opportunities to learn from experienced colleagues, but we also expect independence, ownership, and responsibility.
 

- We offer excellent career growth opportunities — both vertical and horizontal. We want to grow together with you.

Requirements:

We won’t be listing hundreds of libraries and frameworks here 🙂 — that’s pointless, right? What really matters:
 

- A strong foundation in JavaScript. Be prepared to explain what functional programming is and its core concepts.
 

- Hands-on experience with TypeScript, React, and Next.js.
 

- Backend experience with Node.js using frameworks such as Fastify or NestJS (we rarely use Express in our organization).
 

- Solid understanding of modern development practices, including clean code and CI/CD pipelines.
 

- Familiarity with Agile/Scrum methodologies and collaboration tools (Jira, Git, etc.).
 

Important:
If you feel that you’re the right fit — don’t worry too much about the description. Let’s talk and see if this could work out. Including a short Loom video about yourself in your application, especially in English, would definitely be a plus.

We are seeking a Senior Backend Developer for one of our project, who based in Europe.

This opportunity is ideal for proactive technologists who thrive in fast-paced startup environments and want to make a major impact on the future of digital trade.

Responsibilities

• Collaborate with a culturally diverse global software development team to drive the delivery of world-class web applications.
• Influence technical direction, system design, and standards, and mentor team members for technical excellence.
• Design and implement scalable and robust backend services and APIs with usability and clarity in focus.
• Work hands-on with advanced technologies: encryption, digital signatures, blockchain, PDF processing, message queues, and asynchronous background tasks.

Requirements

Core Skills

• 3+ years with JavaScript and TypeScript.
• 3+ years experience building modern SaaS or B2B apps using NestJS, TypeORM, and various software architectures.
• 3+ years designing REST APIs and implementing authentication methods.
• 3+ years working with database systems, SQL, and performing code reviews.
• 1+ year of blockchain development or maintenance is a strong plus.

Infrastructure

• Experience with AWS SDK v3, RDS, S3, SQS, SES, Redis/ElastiCache, Cognito, DynamoDB.
• 3+ years working with Docker (Kubernetes is a plus).

Frontend (Nice to have)

• 1+ years with NextJS, ReactJS, Redux/RTK, and SCSS.

Process

• 3+ years in Agile/Scrum environments, working with functional/non-functional requirements and specifications.
• 3+ years using Jest for code quality and automated testing.
• Strong analytical skills to detect and remediate bugs.
• 5+ years of version control experience (Git) and code review.

Soft Skills

• Excellent communication, ownership, and commitment to code quality and business timelines.
• Results-driven, independent, and entrepreneurial mindset.

This is a full-time remote position for candidates based in Europe (excluding Ukraine).

About the Role 

We are looking for a Node.js Software Engineer with an interest to AI technologies. 

Key Responsibilities 

• Write clean, maintainable, and scalable code using Node.js as the primary technology. 
• Review and provide constructive feedback on Pull Requests from other team members. 
• Design and implement various levels of automated tests (unit, integration, end-to-end). 
• Collaborate with team members to identify and solve complex technical challenges in building an AI agents system. 
• Actively participate in architectural discussions and propose scalable solutions. 
• Contribute to continuous improvement in development processes, tools, and best practices. 

Required Qualifications 

• 5+ years of hands-on experience with Node.js in production environments. 
• Strong understanding of software design principles, clean code, and scalable architecture. 
• Excellent problem-solving skills and the ability to break down complex problems into actionable solutions. 
• Strong communication and collaboration skills. 
• Interest in Artificial Intelligence technologies and their practical applications. 
• Strong knowledge SQL (Postgres or similar). 

Nice-to-Have 

• Experience with NestJS framework. 
• Familiarity with AWS services (Lambda, S3, DynamoDB, etc.). 
• Understanding of Multi-Agent System (MAS) architectures or principles. 
• Experience working with tools/frameworks like: 
• LangChain, LangGraph 
• n8n 

Soft Skills 

• Strong communication and collaboration abilities. 
• Willingness to experiment, iterate, and learn from results. 
• Comfortable working in cross-functional teams. 
• Creative mindset with a focus on delivering practical solutions. 

What You’ll Do

• Take full ownership of the backend GitHub repository, including CI/CD pipelines with GitHub Actions across two live environments.
• Lead the design, development, and maintenance of the backend using Node.js/TypeScript, Express, Swagger, AWS SDK, Bull/Cron, and Salesforce CRM integration.
• Manage and supervise backend infrastructure on AWS (ECS containers, RDS databases, and Elasticache).
• Work closely with the project/product manager, development lead, frontend developers, and DevOps team to ensure smooth delivery and high-quality releases.

What We’re Looking For

• Node.js – high proficiency
• MS SQL – high proficiency
• Git – high proficiency
• Experience with GitHub Actions
• General understanding of AWS services
• Knowledge of authentication protocols (SAML, OAuth2, IdP, authentication tokens)
• Strong English communication skills (written and spoken)
• Excellent teamwork and collaboration skills
• Nice-to-have skills:
• Experience with C# and web technologies

• Background in educational or gaming applications

   

The working schedule is from Sunday-Thursday

We are building a multi-agent AI assistant platform for college admissions.
 

• The Admissions Counselor is the central orchestrator that manages the student’s master profile, application stage, deadlines, and progress. It integrates outputs from specialized agents and delivers clear “next steps” and guidance to the student.
• Specialized agents include:
  • University Search Agent (finds and ranks universities that fit a student’s profile)
  • Application Requirements Agent (pulls official deadlines, essays, and checklists)
  • Scholarship Search & Scholarship Requirements Agents (find opportunities + detail requirements)
  • Essay Agent (edits and coaches, never ghostwrites)
  • Visa Agent (provides official student visa requirements per country)
     

Key Features:

• Shared user profile/state schema (academics, preferences, deadlines, tasks).
• Agents interact via structured JSON reports; Admissions Counselor synthesizes and decides next steps.
• Clear stage machine (onboarding → list building → essays → applications → scholarships → visa).
• Safe boundaries: factual retrieval, source citations, no essay ghostwriting, privacy rules enforced.
• Student-facing dashboard shows: current stage, top 3 next steps, nearest deadline, risks/conflicts.

Core Technical Skills

• Backend Development
  • Python (preferred) or Node.js for agent orchestration and API integrations
  • REST/GraphQL API design and implementation
  • Building modular microservices or agent-based architectures
• AI / LLM Integration
  • Prompt engineering & system prompt design
  • Working with OpenAI / Anthropic / LLM APIs (chat, JSON mode, function calling)
  • Designing agent loops (plan → act → observe → update)
• Data Management
  • Designing schemas for user profiles, tasks, and deadlines (JSON/SQL/NoSQL)
  • Handling structured + unstructured data (scraped requirements, essay drafts, etc.)
  • Event-driven state updates (logs, deadlines, user actions)
• Web Scraping & Data Retrieval
  • Extracting official university/program requirements (HTML parsing, API use where available)
  • Scholarship and visa information scraping with reliability and compliance
  • Managing freshness and source validation
• Security & Privacy
  • Storing and protecting sensitive student data (academics, demographics, financial info)
  • Compliance with privacy standards (GDPR, COPPA if under 18, FERPA if US-based)

Technical Requirements:

• Modular architecture (each agent = service with defined prompt + tool contracts).
• Agents communicate through message envelopes (JSON with corr_id, from, to, intent, payload, reply_to).
• Tooling integrations: university admissions sites, scholarship databases, government visa sites.
• Supportive, non-demanding UX with nudges and reminders.

Nice-to-Haves

• Experience with workflow orchestration tools (LangChain, LlamaIndex, Haystack, CrewAI, or custom)
• Background in edtech or admissions tech
• Experience with NLP evaluation pipelines (to measure task success, hallucination rates, etc.)
• Knowledge of role-based access control (RBAC) for multi-agent systems

We are seeking a highly skilled Node.js expert, who excels as a collaborative team member. The role goes beyond coding, encompassing responsibilities such as handling feature aspects, specifications, technical design, development, testing, documentation, and maintenance.

Customer

Our client has rapidly become one of Europe’s most swiftly expanding FinTech companies. They oversee all aspects of financial operations, from generating virtual cards to facilitating wire transfers and maintaining customer account balances. As a payment institution, our client provides a platform that integrates financial services into its product, offering features such as account management, card payments, bank transfers, and additional services.

Requirements

• Over 5 years of experience in Back-end software development
• At least 3 years of experience with TypeScript
• Over 4 years of experience working with Node.js
• Strong experience in designing distributed and secure systems
• Good Front-end development skills
• Good understanding of microservices architectures
• Experience in designing, building, and maintaining APIs
• Experience in building and consuming REST and/or GraphQL APIs
• Familiarity with DevOps practices
• Strong experience working with AWS
• Good knowledge of testing best practices
• At least an Upper-Intermediate level of English

Would be a plus

• Experience with modern JavaScript and ES6 libraries

Responsibilities

• Design and implement large-scale software solutions and components using multiple technologies, with a primary focus on Node.js and ReactJS
• Maintain a consistently high level of quality throughout all stages of the development
• Communicate effectively to collaborate closely with the team and gain full context for complex tasks
• Follow the best engineering practices, as well as company and client guidelines
• Play supervisory, advisory, and coaching roles for less-experienced engineers on the team
• Promote clean code, as well as design patterns and principles

For 16 years, Alty has reached the top lists of mobile and desktop application developers for fintech, retail, banking, and tourism. Our professional expertise in UI/UX design, mobile, and web development of high-load applications used by millions of users worldwide. You know us for sure if you use Monobank, Privat24, ZakazUA, EasyPay, Kashable, or Sfera Living System. Our clients are large businesses and corporations that recommend us to partners. We put the customer at the heart of all we do and achieve our best together. Join us!

We are currently looking for a Senior Node.js Developer for part-time engagement.

Requirements:
— 3+ years of experience with Node.js.
— Hands-on experience with Strapi (configuration, customization, plugins).
— Experience integrating with external systems using JSON-RPC (Odoo or other ERP/CRM).
— Understanding of REST API architecture.
— Database experience (PostgreSQL/MySQL).
— Knowledge of web application security principles.
— Teamwork experience and ability to make independent technical decisions.

Responsibilities:
— Development and configuration of a CMS on Strapi (Node.js) for store content management.
— Integration with Odoo (ERP) for data exchange (proxying information about products, orders, customers, etc.).
— Designing and implementing APIs for the front end (React SSR).
— Ensuring security, performance, and scalability of the backend solution.
— Collaboration with the team (front end, QA, PM, design) and full responsibility for the backend part of the project.

Project details:
— Custom e-commerce store with a front end on React SSR. 
— Full cycle — from concept to design and development.

— Customer is the Ukrainian manufacturer of products and equipment for beauty salons expanding into the European market. 
— Duration: 4 months (active phase of back-end development ~2 months, support ~2 months).

Our employees describe working here as a welcoming, collaborative, and impactful experience. If you are a creative and energetic person, we cannot wait to see you on board!

N-iX is looking  for a strong Node.js / Express JS Software Engineer who is eager to become a part of a big team and develop complex solutions working with UI, AI and server-side data processing and communications.

Responsibilities

• Designing & developing GraphQL and RESTful APIs for a modern web application
• Designing, building, and maintaining performant, efficient, reusable, and reliable code
• Requirements review and development.
• PCI DSS standard (four-eyes principle), QA, code review
• Writing unit and integration tests
• Problem-solving and root cause analysis
• Communicating with technical experts, product owners and stakeholders
• Sharing and developing your own new ideas, techniques and methodologies

• Working with the different consumers to improve API’s, data usage and integrations.

   

Requirements

• A minimum of 4 years of software development experience
• Deep understanding of Node.js & Typescript
• Know-how of building APIs from scratch
• Strong expertise working with databases, particularly PostgreSQL but also understanding of other types of database and their purpose.
• Experience working with REST & GraphQL APIs
• Understanding of stateless streaming and event-driven architecture
• Knowledge of general tools in team works: JIRA, Git, Jenkins, IDEs
• Expertise with Kubernetes and other serverless AWS offerings
• Expert experience with unit testing frameworks
• Confident level of English for daily communication

• Experience in e-commerce or marketing domains is a plus

   

  We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings

• Other location-specific benefits

  *not applicable for freelancers

Ideal Candidate

Are you a senior backend stack engineer who thrives on end-to-end ownership, rapid iteration, and building systems from scratch? Do you want to shape the architecture and foundation of a next-gen product with real-world impact? If so, let’s build the future together.

We’re KidGigs, a stealth-mode startup on a mission to redefine the hyper-local marketplace experience through a mobile-first platform that seamlessly connects people and services in a radically new way.

We’re currently looking for a Senior Full Stack Engineer (Node.js / AWS / React Native) to lead critical parts of our backend and support mobile feature development. You’ll play a central role in building a high-performance, scalable platform used by thousands of users. If you’re ready to move fast, architect clean solutions, and work with a high-caliber team—this is the opportunity.

What You’ll Do

• Architect, develop, and maintain scalable backend systems and APIs using Node.js and AWS serverless services (Lambda, Step Functions, DynamoDB).
• Drive end-to-end feature development—from backend logic and data modeling to user-facing functionality—with attention to performance, reliability, and security.
• Work closely with product, design, and mobile teams to shape user experiences and define system architecture.
• Own and drive technical decisions, ensuring clean, maintainable code and scalable solutions.
• Establish best practices, conduct code reviews, and mentor junior developers across the stack.

What We’re Looking For

• 6+ years of experience in backend development, with strong command of JavaScript/TypeScript and Node.js.
• Hands-on experience with AWS serverless architecture (Lambda, API Gateway, Step Functions, Cognito, S3).
• Solid understanding of REST API design, backend performance optimization, and scalable infrastructure.
• Experience working with SQL and NoSQL databases (especially DynamoDB).
• Familiar with modern development practices, CI/CD pipelines, and version control (e.g., GitHub Actions).
• Comfortable in a fast-paced startup environment with a high degree of autonomy and ownership.
• Upper-intermediate or better English.
   

Reach out if you have any questions about the role or company.  Thank you!

Join us in shaping the future of coworking spaces.

Spacebring speeds up coworking space management by automating tedious tasks, increasing efficiency, and boosting member retention. Today, over 500 spaces in 50+ countries rely on our platform.

We are looking for a skilled junior software engineer to work with our product team. A passion for programming and excellent problem-solving skills are a must.

Our tech stack: stackshare.io/spacebring/spacebring

Required

• 1+ year of experience with JavaScript, Node.js.
• Good problem-solving skills.
• Good knowledge of SQL.
• Good understanding of REST API.
• Good knowledge of Git.
• Technical education.

As a plus

• Knowledge or experience in functional programming.
• Knowledge or experience using AWS Lambda, DynamoDB, API Gateway, EventBridge, and CloudWatch.

We offer

• Work on a cutting-edge product and see your impact.
• Monday-Friday work week with no overtime.
• Learn from a team of experts eager to share knowledge.
• Career growth in a fast-scaling company.
• Opportunity of hybrid work and flexible schedule.
• Generous vacation & sick leave.
• Regular salary reviews and stock options.
• Employee benefits: language courses, skill development, gym.
• Team retreats, camps, offsites, and social events.
• Comfortable coworking space in central Lviv.

Overview

We are seeking an experienced Tech Lead Developer with 8+ years of software development experience to join our growing engineering team. In this role, you will lead technical initiatives, mentor junior developers, and drive the architecture and implementation of scalable backend systems using modern technologies.
 

Main Responsibilities

– Lead and mentor a team of developers, providing technical guidance and code review oversight

– Design and implement robust, scalable backend systems using Node.js and TypeScript

– Architect solutions using NestJS framework for enterprise-grade applications

– Collaborate with product managers and stakeholders to translate business requirements into technical solutions

– Drive best practices in code quality, testing, and development workflows

– Optimize database performance and design efficient data models

– Implement and maintain CI/CD pipelines and deployment strategies

– Participate in technical decision-making and technology stack evaluation

– Ensure system reliability, performance, and security standards

Mandatory Requirements

– 8+ years of software development experience

– Strong proficiency in Node.js and TypeScript with deep understanding of modern JavaScript/TypeScript features

– Extensive experience with NestJS framework for building scalable server-side applications

– Solid knowledge of relational databases, especially PostgreSQL (design, optimization, and complex querying)

– Experience with Redis for caching strategies and queue management

– Hands-on experience with message brokers and queue systems (RabbitMQ, BullMQ, outbox pattern implementation)

– Proficiency with Docker and Docker Compose for containerized development and deployment environments

– Experience with CI/CD pipelines (Bitbucket Pipelines or similar platforms)

– Strong understanding of backend architecture principles and ability to apply design patterns in practice

– Experience with modern development practices including code reviews, Git workflows, and Agile/Scrum methodologies

– Basic knowledge of Nginx for reverse proxy, load balancing, and server configuration
 

Nice to Have

– Knowledge of React Native

– Basic server administration

– Writing automated tests (unit/integration/e2e)

– Experience working with mobile attribution and analytics platforms (Adjust, AppsFlyer, Singular)
 

We offer

– Stable work
– Fully remote
– High salary
– Strong team

N-iX is looking for a strong Node.js Software Engineer who is eager to become a part of a big team and develop complex solutions working with UI, AI and server-side data processing and communications.

We have lots of opportunity to grow in different directions alongside front-end and back-end development using JS, Typescript, ExpressJS, React.js, Next.js and AWS services.  We run a self-organizing agile team with a strong product lead ownership model using Agile framework where appropriate.

About the client:

Cleverbridge is a platform that provides global e-commerce and subscription billing solutions that help companies build long-term customer relationships and grow revenue streams. With its flexible, cloud-based billing and monetization platform, Cleverbridge integrates seamlessly with client systems, simplifies subscription business models, and delivers an optimized online customer experience.

Responsibilities:

• Designing & developing GraphQL and RESTful APIs for a modern web application
• Designing, building, and maintaining performant, efficient, reusable, and reliable code
• Requirements review and development.
• PCI DSS standard (four-eyes principle), QA, code review
• Writing unit and integration tests
• Problem-solving and root cause analysis
• Communicating with technical experts, product owners and stakeholders
• Sharing and developing your own new ideas, techniques and methodologies
• Working with the different consumers to improve API’s, data usage and integrations.

Requirements:

• A minimum of 5 years of software development experience
• Deep understanding of Next.js, Node.js & Typescript
• Know-how of building APIs from scratch
• Strong expertise working with databases, particularly PostgreSQL but also understanding of other types of database and their purpose.
• Experience working with REST & GraphQL APIs
• Understanding of stateless streaming and event-driven architecture
• Knowledge of general tools in team works: JIRA, Git, Jenkins, IDEs
• Expertise with Kubernetes and other serverless AWS offerings
• Expert experience with unit testing frameworks
• Confident level of English for daily communication
• Experience in e-commerce or marketing domains is a plus