Jobs Node.js

We’re building Firesale — a platform where sellers create AI-powered listings by simply recording a video. Buyers see beautiful, interactive posts generated automatically. It’s fast, visual, and redefines how products are presented and discovered.

Everything is built from scratch with a modular, service-oriented architecture using NestJS and NextJS.

We’ve raised $1.5M in investment and secured an additional $500K in grants and credit programs from companies like NVIDIA, Google, Amazon, and others — giving us a solid runway and the ability to scale confidently.

Watch the intro video (1 min)
📺 https://youtu.be/hU2vJU8fo0w?feature=shared

The ideal candidate profile includes:

• 6+ years of commercial software engineering experience
• 3+ years in a senior-level position
• 3+ years of hands-on backend development experience (NestJS, modular microservices)
• 3+ years of hands-on frontend development experience (React, Next.js)
• Strong grasp of DDD, Clean Architecture, KISS
• Ability to build and own complete features from UI to backend integration
• Self-directed, detail-oriented, and committed to code quality

Nice to have:

• Familiarity with NATS
• Exposure to event-driven systems
• Exposure to CI/CD pipelines (GitHub Actions, Docker)

Role & responsibilities:

• Initial focus on frontend: building key UI flows, interactions, and responsive forms
• Integrate with backend services via REST and SSE
• Help define and maintain architectural consistency and code quality
• Collaborate directly with the founder/CTO, shaping the product from day one

What we offer:

• Modern architecture: no legacy, no shortcuts, full control
• Async collaboration, flexible hours, remote-first
• Direct impact: everything you build will ship to real users
• Fast feedback loop, deep technical discussions, and strong product/tech alignment
• Opportunity to grow into a core engineering or lead role

Appexoft is looking for a motivated Trainee or Junior Node.js Developer to join our team in Lviv (office format). We would love to hear from you if you are eager to grow in backend development and work with modern technologies.
 

Required Technologies:

• Node.js, Express.js / Nest.js
• JavaScript (ES6+) / TypeScript
• SQL (PostgreSQL, MySQL), NoSQL (MongoDB, Redis)
• REST API, GraphQL, WebSockets
• Git (GitHub/GitLab), Docker (preferred)
• Postman for API testing

Nice to Have:

• Understanding of OOP, SOLID principles, and design patterns
• Experience with testing frameworks (Jest, Mocha, Chai)

Requirements:

• English level: B1 or higher
• Strong motivation to learn and develop in backend engineering

We Offer:

• Interesting and challenging projects
• Vast opportunities for professional development
• Competitive salary
• Friendly team of professionals
• Comfortable working environment

Про компанію Appexoft

Appexoft is Software Development Company that provides a full range of top-quality IT services. Our mission is to develop first-class applications and Websites to provide our clients with the best solutions for maximizing their profits and converting their ideas into reality.

About the Role

We are seeking a talented and experienced Senior Node.js Developer to join our growing team. In this role, you will lead the backend development of scalable web applications and APIs, contribute to architecture decisions, and mentor junior developers. You should have a deep understanding of server-side JavaScript and a strong grasp of modern web development practices.

Key Responsibilities

• Design, develop, and maintain backend services and APIs using Node.js.
• Collaborate with front-end developers, DevOps, and product teams to deliver high-quality features.
• Optimize application performance and scalability.
• Write clean, efficient, and well-documented code.
• Participate in code reviews and provide mentorship to junior developers.
• Ensure best practices in security and data protection are followed.

• Stay current with emerging technologies and development trends.

   

Requirements

• 6+ years of professional experience in Node.js development.
• Strong knowledge of JavaScript (ES6+), asynchronous programming, and RESTful API design.
• Experience with frameworks such as Express.js or NestJS.
• Proficiency in working with databases (SQL and NoSQL).
• Familiarity with Git, CI/CD pipelines, and cloud platforms (AWS, GCP, or Azure).
• Solid understanding of software engineering principles and Agile methodologies.

• Strong communication and teamwork skills.

   

Nice to Have

• Experience with TypeScript.
• Knowledge of GraphQL, WebSockets, or Microservices architecture.
• Familiarity with Docker and container orchestration (e.g., Kubernetes).

Benefits

• Competitive salary and performance bonuses.
• Flexible working hours and remote options.
• Professional development and learning opportunities.
• Collaborative and inclusive team culture.

1. About Us

We’re a team of professional software developers. Our next mission: build a Shopify-embedded CRM that surfaces orders, customers, and live dashboards - all as a built-in native Shopify experience.

2. Why This Role Matters

Our users juggle disjointed tools. You’ll architect and deliver the central nervous system that unifies order data, conversations, and analytics - turning scattered touch-points into a single source of truth.

3. What You'll Own

- Architecture & Data. Design the PostgreSQL schema and Drizzle ORM models powering multi-tenant data.

- Integration. Figure out leverage points and how to integrate with 3rd party systems.

- App Framework. Ship performant React Router views inside the Shopify App Bridge.

- Core Features. Build customer timelines, order detail pages, and a metrics dashboard with live charts.

- CI/CD pipeline. Automated Acceptance tests.

- Technical Leadership. Mentor devs, run lean RFCs, and choose the right trade-offs for scale & security.

4. Tech Stack You’ll Thrive In

- Shopify App Platform (App Bridge, OAuth, Webhooks, GraphQL Admin API)

- React + Typescript with React Router

- Drizzle ORM on PostgreSQL 15

- Vite + Vitest / Playwright for DX & testing

5. You’re a Great Fit If You

- Have 5+ yrs shipping production-grade React/Node systems, with at least one Shopify app in market.

- Speak SQL natively and can reason about indexes, migrations, and isolation levels.

- Balance product sense with technical rigor - you ask “why” before “how”.

- Write clear, kind English

- You use Claude Code or Cursor daily.

- You do not generate me a boring-a** message with default ChatGPT style and instead actually just just send me a simple checklist of why I should hire you

Appexoft is looking for a motivated Trainee or Junior Node.js Developer to join our team in Lviv (office format). We would love to hear from you if you are eager to grow in backend development and work with modern technologies.
 

Required Technologies:

• Node.js, Express.js / Nest.js
• JavaScript (ES6+) / TypeScript
• SQL (PostgreSQL, MySQL), NoSQL (MongoDB, Redis)
• REST API, GraphQL, WebSockets
• Git (GitHub/GitLab), Docker (preferred)
• Postman for API testing

Nice to Have:

• Understanding of OOP, SOLID principles, and design patterns
• Experience with testing frameworks (Jest, Mocha, Chai)

Requirements:

• English level: B1 or higher
• Strong motivation to learn and develop in backend engineering

We Offer:

• Interesting and challenging projects
• Vast opportunities for professional development
• Competitive salary
• Friendly team of professionals
• Comfortable working environment

Про компанію Appexoft

Appexoft is Software Development Company that provides a full range of top-quality IT services. Our mission is to develop first-class applications and Websites to provide our clients with the best solutions for maximizing their profits and converting their ideas into reality.

Про компанію Appexoft

Appexoft is Software Development Company that provides a full range of top-quality IT services. Our mission is to develop first-class applications and Websites to provide our clients with the best solutions for maximizing their profits and converting their ideas into reality.

Backend Developer (Node.js) for the  international product IT company,  which provides a full-stack package of complex AdTech solutions for digital advertisers, publishers and ad agencies worldwide. 

  The company develops white-label platforms for enterprise clients—custom turnkey solutions to automate and optimize digital advertising.

Products company : SSP, DSP, Ad Exchange platforms.

Main markets - Tier 1-2 

The technical team - up to 30 people (CTO, Team Lead, Back-end -10, Front-end developers, QA, DevOps )

Project stack: Node.js (backend), NoSQL, SQL, Redis, MongoDB,  Linux.

Locations/Offices - Kyiv, Lviv, Odesa, Mykolaiv or remote.

 Requirements:

• At least 3 + years of backend development experience, with a strong focus on Node.js
• Deep understanding of asynchronous programming in Node.js and event loop
• Knowledge or  experience with high-load systems
• Familiarity with SQL, NoSQL, and in-memory key-value databases for data storage and optimization;
• Knowledge of network protocols such as HTTP, TCP, and FTP;
• Expertise in identifying and resolving issues efficiently;
• Experience or understanding unit testing;
• Experience with Linux servers, handling basic administration tasks;
• Performance optimization skills;

Responsibilities:

• Write clean, efficient, and maintainable code following best practices
• Develop and maintain scalable backend services using Node.js 
• Debug and resolve issues in the backend systems
• Manage and optimize SQL and NoSQL databases 
• Write and maintain unit tests to ensure code quality
• Collaborate with team lead, frontend developers, CTO, Delivery Coordinator and other team members
•  Continuously learn and apply new technologies to improve backend systems

We offer:

• Vacation 21 calendar days per year (15 working days) - cumulative, the balances are 

           carried over from year to year

• medical insurance
• days off - 7 days per year
• additional 1 day of absence per year on the occasion of celebrating Birthday
• 15 paid sick leave per year
• 15 unpaid leave per year
• days off on public holidays
• referral bonuses
• coworking compensation
• corporate technology

Founded in 2012, Playson is a leading iGaming supplier recognized worldwide. We provide our customers with a high-end micro-service-based platform as a service that aims 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 Tech Leader - Node.js 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 in all transaction processing operations and in every micro-service,
• 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:

• Degree in Computer Science or related field.
• Proficiency in Node.js/TypeScript.
• Knowledge of Kubernetes.
• Strong understanding of asynchronous programming techniques.
• Experience with distributed systems and messaging systems (Apache Kafka, gRPC).
• Knowledge of relational databases (MySQL, PostgreSQL), columnar databases (ClickHouse), and NoSQL technologies (DynamoDB, MongoDB).
• Skilled in developing and maintaining end-to-end and unit tests.
• Proven track record of developing production-ready solutions.

Preferred additional qualifications:

• Experience with large-scale microservices architecture.
• Familiarity with cloud providers (AWS)
• Understanding of application security and industry best practices.

What will you be doing?

• Developing and maintaining backend applications for our gaming platforms.
• Optimizing existing systems for performance and scalability.
• Leading technical decisions and influencing our SaaS solutions.
• Collaborating with a distributed team to create new features.
• Conducting code and architectural reviews.
• Solving complex business problems with innovative solutions.
• Participating in on-call rotations within the squad to ensure the reliability and availability of our systems.

What you get in return:

• Competitive Salary: We offer a competitive salary in EUR, subject to annual performance reviews
• Quarterly Bonuses: Benefit from a transparent and systematic quarterly bonus system
• Flexible Schedule: We offer a flexible work schedule to accommodate your needs
• Remote Work Option: Choose to work remotely, providing greater flexibility and comfort
• Medical Insurance: Receive comprehensive medical insurance for both you and a significant other
• Financial Support for Life Events: We provide financial support during special life events
• Unlimited Paid Vacation: Enjoy unlimited paid vacation leave
• Unlimited Paid Sick Leave: Take unlimited paid sick leave whenever necessary
• Professional Development: Get reimbursement for professional development courses and training

The recruitment process includes the following steps:

1. HR Interview (30-45mins)

2. Meeting with Product Owner (45-60mins)

3. Technical interview (60-90mins)

4. Final Interview with CTO (60mins)

Who are we looking for?

We are looking for an "independent fighting unit" who is ready to join our Team and start working together on our projects immediately or after training.

Tasks?

Your tasks will focus on the skills and expectations listed below and the use of new approaches and technologies.

Why did the job open?

We want to invite a new specialist to the company's staff due to the increase in the number of projects and the opening of a branch.

Requirements:

- B1 English (Upper-Intermediate)+

- At least 2+ year of commercial experience with JavaScript

- At least 2+ years of commercial experience with Node.js

- Experience with Typescript, Nest.js

- Experience with RDBMS and NoSQL databases

- Experience with implementing automated testing platforms and unit tests

- Experience with REST/GraphQL

- Experience with cloud services such as AWS, GCP or Azure

- Experience with CI/CD processes

- Experience in integrating with external APIs

- SOLID understanding of object-oriented programming

- Flexibility and ability to adapt to changes

- Ability to work closely with Product Managers and Engineering Team-members

Good to have:

- Experience with Unit/E2E testing

- Understanding design, and architecture principles

- Experience with message brokers, like RabbitMQ, SQS, etc

- Experience with JS web-frameworks React/Vue/Angular etc

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. 

Join us in shaping the future of work.

Spacebring is a Ukrainian product company backed by Google. It transforms coworking space operations by eliminating bottlenecks, automating bookings, billing, and daily tasks. Today, Spacebring powers hundreds of spaces across 55+ countries — including well-known names like Kooperativ, Creative States, Diia Business, Google for Startups, Impact Hub, and many more.

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.
• Experience with React.
• 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.
• Experience with React Native.

We offer

• Work on a cutting-edge product and see your impact.
• Learn from a team of experts eager to share knowledge.
• Career growth in a fast-paced company.
• Opportunity of hybrid work and flexible schedule.
• Due 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.

Want to work at the cutting edge of modern technology and artificial intelligence? We have something just for you.

We are looking for a Node.js engineer who is not only confident in backend development but also has a genuine interest in AI integrations, LLM agents, and new automation technologies. This role involves participating in the creation and development of AI assistants, platforms, and interfaces that help businesses be more efficient.

What to expect:

• Regular technical challenges — a new case from a customer every week
• Flexible use of AI tools (OpenAI API, WhatsApp/Telegram API, OCR, N8N, scrapers)
• Hands-on experience with workflow automation platforms, particularly N8N, for creating complex business process automations
• Building end-to-end AI workflows that connect multiple services and APIs
• Opportunity to experiment with emerging AI technologies and automation tools as they become available

Our main requirements are:

• Experience in hands-on programming 3+ years
• Experience doing Node.js (Vanilla/Typescript)
• Experience with NestJS also and/or NextJS and/or Express
• Strong creating with SQL/NoSQL databases efficient design from scratch as well as performing optimizations
• Strong knowledge in Computer Science: data types, data structures, algorithms
• Being proficient working on modern tech stack: Docker, Kubernetes, CI/CD, IaC (e.g. Terraform), Ansible etc.
• Having a wide strong background working with AWS (smth beyond EC2 and S3)
• Understanding and applying software design principles
• Experience designing software systems (distributed, high availability, resilient)
• Comfortable working Agile and Design Thinking (however understanding that pure Agile is a myth)
• Being comfortable in several projects at once (taking apart hands-on aspect)
• Strong communication skills in English (B2 and better)
• Willingness and enthusiasm to learn workflow automation tools (especially N8N) and adapt to rapidly evolving AI technologies

Will be considered as a plus:

• Experience with modern SPA frameworks like React/Vue.js/Angular
• Experience with NestJS
• Experience writing technical documents, tracking technical debt, understanding refactoring etc.
• Experience working with AI libraries and/or 3rd parties like chatGPT, Claude, Gemini or Perplexity
• Previous exposure to workflow automation platforms (N8N, Zapier, Make.com, or similar)
• Experience with RAG implementations, vector databases, or knowledge management systems
• Familiarity with MCP (Model Context Protocol) or similar AI integration standards
• Understanding of prompt engineering and AI agent behavioral design
• Experience building conversational AI interfaces or chatbots

Hiring process:

• HR interview: we’ll talk about your professional background, the specifics of the position we are offering, and address any questions you might have.
• Tech interview: a deeper look into your technical expertise and problem-solving approach, ensuring your skill set aligns with our project’s needs.
• Interview with the C-Level: a conversation focused on the company’s vision, strategic goals, and how your role aligns with them.
• Feedback
• Job offer

What we offer at MindTech:

• Hardware Policy: Get the gear you need, from laptops to PCs.
• Referral Bonus: Invite talent and earn a generous reward.
• Professional Growth: We cover courses and books to fuel your expertise.
• Tasty Perks: Free lunches, snacks, tea, and coffee to stay energized.
• Birthday & Celebrations: Gifts on your day, plus parties and team-building.
• Life Events Support: Wedding bonuses, childcare support, and more.
• Volunteering Days: Extra days off to help your community.
• Work-Life Balance: 18 paid vacation days, 10 paid sick days, and national holidays off.

Requirements:
- 2-3 months+ of industry work experience.
- Full-stack experience designing and building scalable applications from end to end.
- Excellent JavaScript/TypeScript skills and strong proficiency in React.
- Familiarity with databases (Postgres/Mongo) and Nest.js will be a plus.
- Familiarity with building back-end APIs, monolith and microservice applications.
- Experience using RESTful APIs and basic authentication mechanisms.
- Ability to showcase previous work via live web pages and Github/Gitlab/Bitbucket.‍

- Knowledge and command of English at Upper Intermediate level

Soft Skills:

- Excellent problem-solving skills;

- Strong communication and collaboration abilities;

- Ability to work independently and within a team;

- Detail-oriented and organized.

We offer:

- Work within a friendly team;

- Fixed salary $

- Monthly benefits to cover a subscription to the gym, English courses or any other activity;

- Paid vacation and sick leave;

- Corporate English courses;

- Required technical literature available on demand;

Interview stages:

HR Interview -Test task - Tech Interview - Offer

Про компанію Incode Group

Incode Group is a Ukrainian provider of unique software development outsourcing services of any complexity with 100+ technical experts. We are a one-stop service provider, creating high-quality and reliable web, mobile, and cloud solutions that work sustainably under high load.

As a backend engineer at Wix Analytics, you’ll focus on producing scalable, high-quality code while collaborating with product managers and creating APIs. You’ll be part of a dynamic team tackling challenges in backend development and contributing to the success of Wix Analytics.

In your day-to-day, you will:

• Produce scalable, high-quality code
• Collaborate with product managers
• Create APIs

Requirements

• 2+ years of production experience in backend development
• Proficiency in Node.js, familiarity with Java is a plus
• Ability to work with large codebases
• Knowledge of AI development tools
• Ability to work quickly in a fast-changing environment
• Product-focused mindset

About the Team

We are Wix’s Analytics team. We provide users with high-quality dashboards, reports, and insights about their business. Our backend APIs serve around 200K requests per minute, ensuring fast, reliable, and actionable data for our users. As part of Wix, we contribute to creating innovative solutions that empower millions of users worldwide.

We’re proud to be an equal opportunity employer. Wix was built around the idea that everyone has the right to be successful, online. This same vision defines us as an employer: creating a work environment where everyone is welcome, and anyone has the right to succeed.

We search for a «willing to learn» person who wants to learn and develop enterprise-level web applications/websites.

Skills & Requirements:

• You’ve got at least 1 year of experience in JavaScript

• You’ve worked with some of the modern JavaScript frameworks — Vue.js

• You have experience with Node.js

• You have experience with PostgreSql 

• You feel comfortable communicating in English

• You’re passionate about solving new problems

• You are always looking for the best solution

We are offering:

-Senior team;

-Regular review;

-Long-term employment;

-Challenging projects;

-Certifications;

Responsibilities:

-Code review.

-Functionality improvements to an existing solution

-Increasing system stability, testability, maintainability, and security

Backend Software Engineer (Node.js, Express.js, TypeScript) – RepMove

Location: Remote
Job Type: Full-time

US Visa Sponsorship: Available after 1 year of employment for highly qualified candidates

About RepMove

RepMove is a field sales productivity platform designed to help sales professionals streamline their workflow, optimize territory management, and drive sales growth. We are looking for a Lead Backend Software Engineer to drive the development of scalable, high-performance backend services and integrations.

Tech Stack

• Backend: Node.js, Express.js, TypeScript
• Databases: Firestore, MongoDB
• Cloud Platform: Google Cloud Platform (GCP)
• Messaging & Event Processing: Pub/Sub
• Frontend: Angular, NativeScript (iOS/Android)

Responsibilities

• Lead the development and implementation of scalable and secure web applications and backend services.
• Design, develop, and maintain APIs and microservices architecture for high-performance data processing.
• Manage and optimize MongoDB to ensure efficient data storage, indexing, and retrieval.
• Migrate Firestore to MongoDB, ensuring a seamless transition and data integrity.
• Set up and manage Pub/Sub for event-driven architecture and scalable asynchronous processing.
• Set up CI/CD pipelines for automated backend deployment of Firebase Functions.
• Configure and manage API Gateway for Firebase Functions.
• Review current APIs and migrate from Firebase Functions v1 to v2.
• Ensure code quality and maintainability through rigorous code reviews and automated testing.
• Stay up to date with the latest industry trends, tools, and technologies to improve system architecture and efficiency.
• Collaborate with cross-functional teams to define technical direction, best practices, and long-term development strategies.

Requirements

• 5+ years of backend development experience with Node.js, Express.js, and TypeScript.
• Hands-on experience in API development, microservices architecture, and scalable system design.
• Strong knowledge of Google Cloud Platform (GCP) 
• Expertise in MongoDB database management and optimization.
• Experience in migrating Firestore to MongoDB is a plus.
• Strong understanding of security best practices and secure API development.
• Experience with CRM, ERPs, and third-party integration platforms (Zapier, Integration.app) is a plus.
• Excellent problem-solving skills, leadership, and ability to work in a fast-paced startup environment.
• Knowledge of Pub/Sub is a plus for event-driven processing.
• Experience in CI/CD pipeline setup, API Gateway configuration, and cloud functions deployment.

What We Offer

• Competitive salary & benefits package.
• Opportunity to work on a fast-growing product with a talented team.
• Visa Sponsorship: Available after 1 year of employment for highly qualified candidates
• Career growth and leadership in backend architecture development.

If you're passionate about backend development, scalable architecture, and cloud-based solutions, we’d love to hear from you! Apply now and be a key player in shaping the future of RepMove.