Jobs Node.js

Welcome to ApexTech 🙌 

We are looking for 🚀 Fullstack Developer 🚀 who enjoys learning, building, and switching between projects. 

Responsibilities: 

● Advanced Backend and Frontend developments (JavaScript / NextJS / ReactJS) 

● Mentor / Coach other team members 

● Code reviews and refactoring 

● Advanced problem analysis and solving in production 

● Bug fixing, follow-up and workaround, identification of pain points in the platform 

● Responsible for the efficiency of all the components in the infrastructure 

● Write technical specifications when needed 

● Automate and Optimize repetitive tasks 

Required skills: 

● 5+ years of experience in JavaScript fullstack development (NodeJS / NextJS / ReactJS) 

● Proficient in building SSR/SSG/ISR web applications. 

● Proficient in building and consuming APIs - Rest / GraphQL 

● Strong knowledge of accessibility (a11y) 

● Strong understanding of SEO best practises, semantic HTML and metadata 

● Familiar with Cloudflare for CDN, caching, security and performance optimizations. 

● Familiar with Cloud DevOps (AWS preferred) 

● Eye for detail and sensitivity for graphics and aesthetics 

● Adaptability and responsiveness 

● Great analytical skills 

● Fluent in English 

● Team-player 

Nice-to-have: 

● Experience with Python Backend Development (Django / FastAPI) 

● Experience with a Headless CMS (like Sanity / Contentful, or Strapi) 

● Experience using Tailwind CSS or CSS-in-JS solutions. 

● Experience using UI libraries (like RadixUI / HeadlessUI / MaterialUI) 

● Exposure to internationalization (i18n) in NextJS 

Interview process: 

1. Intro-call with the Recruiter. 

2. Technical Interview. 

3. Test Task

4. Client Interview. 

What do we offer?

 💻 Full remote work and meetings for brainstorming. 

💡Freedom and flexibility. 

🚀A team of top experts and synergy of the entire organization. 

💸Competitive salary. 

🌿 Vacation and sick leaves. 

🙏Therapy sessions with our psychologist. 

📚Budget for professional development. 

💃Corporate events and team building.

Join us as a Senior Node.js Developer and become part of a team that builds an innovative product with clean code, bold solutions, and a strong team spirit! You’ll work directly with stakeholders, influencing key decisions and driving product growth.

Zeely AI is a platform that leverages artificial intelligence to generate viral UGC videos and ad banners, and to launch effective ad campaigns on Facebook and Instagram — helping small businesses get noticed and grow. We already have 1 million users in the US, making us one of the Top 3 players in our vertical on the American market by active user count. 

Zeely is a stable product, growing more than 4x annually in the US, with a team of 160+ professionals. We are proud to be part of the Google for Startups Alumni community and official partners of Meta and TikTok. In 2024, Zeely was recognized among the Top 25 fastest-growing startups in Ukraine by Forbes.

Your key responsibilities:

• Developing and maintaining the back-end of web applications
• Designing and building REST APIs
• Working with PostgreSQL and Redis databases
• Integrating with third-party APIs
• Building and deploying applications on AWS (EC2, S3, CloudFront)
• Writing unit and integration tests
• Optimizing application performance
• Debugging and troubleshooting issues
• Writing technical documentation
• Conducting code reviews

What we’re looking for:

• 5+ years of commercial experience with Node.js applications
• 1+ years of experience with microservices architecture
• 2+ years of hands-on work with Redis and PostgreSQL/MySQL (data modeling, indexing, caching, ORM such as Prisma/TypeORM/Drizzle ORM)
• Experience with AWS
• 2+ years of experience with message brokers
• 1+ years of experience with Docker
• Understanding of scalable and reliable system design principles
• Experience with version control systems (Git)

Nice to have:

• 1+ years of experience with the NestJS framework
• Experience with payment systems
• Valid AWS certification
• Commercial experience with high-load systems
• Experience building back-end for iOS, Android, and web applications
• Experience with Terraform/Pulumi
• Commercial experience with AI APIs
• English level: Intermediate

Why it’s exciting to work with us:

• Work with cutting-edge technologies and contribute to building AI-powered tools
• Join a strong A-level team that motivates you to grow and achieve more
• Remote-first approach: work from anywhere, with the option to visit our offices in Warsaw and Kyiv
• Paid day offs and sick leaves — we care about your work-life balance
• Regular performance reviews to ensure your growth is transparent and rewarded
• Financial support — consultations for private entrepreneurs from our dedicated finance team

Recruitment process: Intro call > Test Task > Technical Interview > Final Interview > Reference check > Offer

Send us your CV — we’d love to get to know you better!

Would you like to lead a healthtech/fintech product that integrates directly with U.S. insurance companies?
We’re looking for a Senior/Lead Software Engineer (Node.js, Angular, and .NET) with the potential to lead a team
Remote + Top salary
Let’s discuss the details?

Main Responsibilities

– Develop and maintain features using Angular and Node.js (Express).

– Contribute to backend services and system architecture where applicable.

– Strengthen the team’s backend expertise and engineering maturity.

– Collaborate with engineering and ETL teams on integrations and data-related workflows.

– Participate in architecture discussions, code reviews, and technical decision-making.

– Identify opportunities to improve system scalability, reliability, and maintainability.

– Share knowledge and support other engineers when needed.

Mandatory Requirements

– 5+ years of professional software development experience.

– Strong experience in backend development.

– Hands-on experience with Node.js and Angular.

– Previous or current experience with .NET / C#.

– Experience designing and implementing backend services or APIs.

– Strong problem-solving skills and the ability to work with complex systems.

-Upper-Intermediate English (B2+) or higher.

– Proactive mindset and ability to take ownership of technical solutions.

Will be a plus

– Experience with AWS or other cloud platforms

– Experience working with healthcare systems or regulated environments

– Experience with SQL and/or NoSQL databases (e.g., MySQL, MongoDB)

– Mentorship or technical leadership experience

We offer

– Projects with a modern JS stack (React.js, React Native, Vue.js, Angular, Node.js)

– Work entirely remotely or in our office (Lviv, Kyiv or Krakow).

– Wellness: Medical insurance/sports compensation/ health check-up+flu vaccination at your choice

– Paid vacations and sick leaves, additional days off, relocation bonus

– Education: regular tech talks, educational courses, paid certifications, English classes

– One of the best IT employers in Lviv (or IT service companies in Ukraine) based on DOU rating.

Required skills:

echlexity is a product and services company building complex solutions for clients in the US and Europe. We're growing a team of engineers who care about clean architecture, high-quality code, and aren't afraid to take ownership.

• 3+ years of commercial experience with Node.js / NestJS
• Strong knowledge of PostgreSQL (schema design, indexing, query optimization, migrations)
• Hands-on experience with Redis (caching, queues, pub/sub)
• Practical experience with AWS (EC2, S3, RDS, Lambda, SQS / SNS, CloudWatch, etc.)
• Solid understanding of how to build scalable REST / GraphQL APIs
• Production-level TypeScript experience
• Knowledge of design patterns, SOLID, and clean architecture
• Experience with Docker and CI/CD
• Strong communication skills - English Upper-Intermediate or higher (written and spoken)
• Agentic coding skills - confident use of AI tools (Claude Code, Cursor, Copilot, etc.) to accelerate development, code review, testing, and documentation
  
  Nice to have:
• Experience with microservice architecture and message brokers (RabbitMQ / Kafka)
• Knowledge of Kubernetes / Terraform / IaC
• Experience with event-driven systems
• Writing unit / integration / e2e tests (Jest)
• Mentorship or tech leadership experience
   
• What we offer:
• 100% remote work from anywhere in the world
• Flexible schedule
• A large, interesting product with real technical challenges
• Modern stack and freedom to choose your tools
• Transparent communication, minimal bureaucracy
• Paid time off and sick leave
• Budget for learning, conferences, and AI tools
• Long-term contract
  
  About us Techlexity is a product and services company building complex solutions for clients in the US and Europe. We're growing a team of engineers who care about clean architecture, high-quality code, and aren't afraid to take ownership.

Come Back Agency supports US software and technology companies by running their hiring process. We work with delivery and leadership teams to define roles, screen candidates, and manage interviews. Successful candidates are hired directly by the company and become part of its team.

Employer information:
This position is with a US-based software company providing custom development and AI implementation for North American clients. The team builds and maintains production software, including AI-enabled systems, and works in long-term client engagements.
Team members operate as part of an internal, distributed team and collaborate directly with client stakeholders.

About the role:

We are looking for a talented Node.js Backend Developer to join our dynamic team. You will be responsible for developing and maintaining server-side logic, defining and maintaining the central database, and ensuring high performance and responsiveness to requests from the frontend. If you’re passionate about building scalable backend systems and have experience with Node.js, Express,Nest,js Sequelize,Prisma, Socket.io, and databases like Redis, PostgreSQL, and MongoDB, we’d love to hear from you!

What you will do:

• Develop, maintain, and improve backend services using Node.js, Express.js, and Nest.js.
• Design scalable and maintainable system architecture for web applications and services.
• Build and optimize RESTful APIs and ensure secure integration with internal and third-party systems.
• Work with PostgreSQL, Redis, and MongoDB for data storage, caching, and performance optimization.
• Implement real-time functionality using Socket.io or similar technologies.
• Develop and support file upload and processing flows using Multer or equivalent tools.
• Implement secure authentication and authorization mechanisms using JWT, OAuth, and role-based access control.
• Apply backend security best practices, including CORS, input validation, error handling, and access control.
• Optimize application performance, reliability, and scalability in production environments.
• Write clean, maintainable, and testable code following best engineering practices.
• Collaborate closely with frontend developers, QA engineers, and product teams to deliver end-to-end features.
• Integrate external APIs, payment providers, cloud services, and other third-party solutions.
• Contribute to the design and development of microservices and distributed systems.
• Use Docker for local development, service orchestration, and deployment consistency.
• Deploy, monitor, and maintain services on AWS or other cloud platforms.
• Participate in code reviews, technical discussions, and architecture decisions.
• Maintain and improve technical documentation for services, integrations, and internal processes.

What we are looking for:

• 2+ years of commercial backend development experience with Node.js.
• English level B2 or higher.
• 2+ years of experience with Express.js and Nest.js in production projects
• Solid experience with Prisma or other ORMs and a good understanding of database design principles.
• Strong knowledge of REST API design, integration patterns, and backend best practices.
• Practical experience with Socket.io or other real-time communication solutions.
• Strong knowledge of PostgreSQL and experience with Redis for caching and performance improvements.
• Working knowledge of MongoDB and understanding when to use relational vs non-relational databases.
• Experience with Docker in development and deployment workflows.
• Good understanding of AWS services such as EC2, S3, Lambda, or similar cloud platforms.
• Solid understanding of backend security practices: JWT, OAuth, CORS, validation, authorization, and secure API design.
• Good knowledge of Git and collaborative development workflows.
• Understanding of microservices architecture, service communication, and scalable system design.
• Strong problem-solving, analytical, and debugging skills.
• Ability to write structured, readable, and maintainable code with attention to quality.
• Good communication skills and ability to work effectively in a team environment.
• Experience participating in code reviews and improving engineering quality.

Nice to have:

• Familiarity with CI/CD pipelines.
• Experience with Kubernetes.
• Exposure to logging and monitoring tools (e.g., ELK, Prometheus).

Hiring stages: Recruiter screening → Technical interview (live coding) → Final culture fit interview.

What We Offer:

• Working hours aligned with US time zones, typically 16:00-00:00 Kyiv time.
• English lessons to support clear and confident communication.
• Paid vacation and sick days.
• Fully remote work.
• Opportunities for professional growth within the team.
• Structured, personalized onboarding to help you ramp up effectively.

Apply with your resume and a short note outlining your relevant experience. You can also send your resume directly through our website at comeback.ua. Selected candidates will be contacted by the Come Back Agency.

Hi! We are looking for a Node.js Backend Developer (NestJS) to join our pack at SharksCode 🦈💙
SharksCode is a Ukrainian IT company that develops high-tech software solutions and B2B platforms, particularly in the iGaming industry.
  We are looking for a Node.js Backend Developer who will work on building scalable backend services and integrations within a distributed architecture. In this role, you will participate in designing and developing platform services, integrating external systems, and contributing to technical decisions that impact the overall product architecture.

We expect that you:

– Have 4+ years of commercial experience with Node.js development.
– Have 2+ years of experience with NestJS (or are ready to quickly adopt it).
– Have experience developing REST APIs and/or GraphQL using NestJS.
– Have strong proficiency in TypeScript.
– Have hands-on experience with MongoDB, MySQL, or PostgreSQL.
– Have experience integrating third-party APIs/services (e.g., sports feeds, payment gateways, etc.).
– Have experience working with message queues (RabbitMQ, Kafka, or similar).
– Understand distributed systems architecture.
– Have experience using Redis for caching and Pub/Sub (preferable).

Your future responsibilities:

– Design and develop backend services and product functionality.
– Build and maintain integrations with third-party financial and technical services.
– Develop public payment APIs and internal microservices.
– Participate in technical discussions and architecture decisions related to platform development.
– Ensure high code quality and follow engineering best practices.
– Share knowledge and contribute to the development culture within the team.

Nice to have:

– Experience working on high-load projects, especially with live data.
– Experience writing and maintaining automated tests (Unit, Integration, E2E).
– Experience with WebSocket, gRPC, or other real-time technologies.
– Knowledge of architectural patterns: CQRS, Event Sourcing, DDD.
– Experience with Docker, Kubernetes, and CI/CD.
– Experience in igaming/betting industry (optional, but a strong plus).

Interview stages:

🤝 Interview with Recruiter
🧠 Technical Interview
💙 Offer

We offer:

🌴 24 paid vacation days, 14 sick days, and 5 days off
⏰ Flexible start of the working day — from 9:00 to 11:00
🏥 Medical insurance
💰 Bonuses and performance-based rewards
🐶 Office in the center of Kyiv — pets are welcome, we are pet-friendly
💆 Lounge area in the office to recharge during the day
🎾 Padel tennis, football, and training at the polygon for those who enjoy active leisure
📚 Learning compensation, internal meetups and workshops, as well as access to the corporate LMS with courses
🎁 Corporate currency that can be exchanged for merch, gifts, or additional benefits

Requirements

Position name: Senior Node.js Developer(with AI agents experience)
Level: Senior
Hard skills:

• 6+ years of Software Engineering experience
• Strong experience with Node.js (Express.js, Koa.js, Nest.js)
• Strong Software Design knowledge: OOD, FP, Design patterns
• Practical hands-on experience with AI prompt engineering, leveraging ArgumentCode, ClaudeCode, Cursor, or equivalent developer-AI tools.
• Deep understanding of RESTful and GraphQL APIs, modern web performance, and security.
• Solid understanding of LLM context design, tool integration, and code-generation workflows.
• Excellent knowledge of modern systems architecture components including microservices, event sourcing, and distributed data processing systems
• Advanced experience with SQL databases, especially PostgreSQL
• Experience with Docker & CI/CD processes
• Experience with AWS (or similar services like GCP or Azure)
• Experience with Serverless framework, AWS Lambdas, AWS CloudFormation
• Knowledge of Agile (preferably SCRUM) development practices

Would be great 😎:

• Strong experience with TypeScript
• Experience as a Tech / Team Lead on projects
• A computer science, software engineering, or related field master’s or bachelor’s degree
• Hands-on experience with message queuing/delivery services (Amazon SQS, SNS, RabbitMQ, Kafka, etc.)

Responsibilities:

• Propose process improvements and take ownership of the full cycle of feature delivery
• Integrate and optimize AI/LLM workflows (e.g., OpenAI, Anthropic, or local models) through prompt design, argument-code, or Cursor-based pipelines.
• Actively participate in technical discussions
• Participate in architectural design sessions, overall team meetings, product meetings, and communities of practice
• Create architectural designs to illustrate high-level solutions for applications and feature requests
• Architect, design, and collaborate with the team to deliver features and services into production
• Write and implement efficient, scalable, and secure backend code
• Conduct code reviews, maintain technical documentation, and support deployed systems

English level: at least Upper Intermidiate

Responsibilities:

• Develop and maintain scalable and efficient web applications.

• Work closely with front-end developers to integrate APIs and back-end logic.

• Design, implement, and maintain databases, ensuring their stability and scalability.

• Optimize applications for maximum speed and scalability.

• Collaborate with cross-functional teams to define and implement new features.

• Write clean, maintainable, and testable code following industry best practices.

• Leverage AI-assisted development tools to accelerate delivery, improve code quality, and streamline repetitive engineering tasks.

Requirements:

• 5+ years of experience in full-stack web development.

• Strong proficiency in back-end using Node.js

• Experience working with relational and non-relational databases (e.g., MySQL, MongoDB).

• Knowledge of front-end technologies (React.js, Vue.js, Angular) is a plus.

• Familiarity with version control systems (Git).

• Experience with APIs and microservices architecture.

• Practical hands-on experience with AI prompt engineering, leveraging Claude Code, Cursor, GitHub Copilot, or equivalent developer-AI tools.

• Solid understanding of LLM context design, tool integration, and code-generation workflows.

• Ability to effectively decompose complex back-end features into AI-assisted development tasks, accelerating delivery without sacrificing code quality.

Nice to have

• Experience with React Native

• Understanding of mobile performance optimization, memory management, and render cycles

• Project Description:

  The Carbon Capture Platform is designed to support the verification and management of CO₂ sequestration data from Carbon Capture and Storage operations. The system processes operational monitoring data, generates verifiable records, and enables the creation of digital tokens representing stored CO2.
  At the beginning of the engagement, the team will analyze the existing platform, including reviewing the architecture, evaluating the current codebase, and identifying technical issues, gaps, and potential risks.
  Based on this assessment, the team will work on resolving identified problems, improving system stability and scalability, and implementing required enhancements. The team will also continue development of new features and support onboarding of new customers, including integration with external data sources such as SCADA systems.
  The overall goal of the engagement is to ensure reliable operation of the platform, support its further development, and enable efficient integration of new users and data sources.

   

• Responsibilities:

  • Analyze the existing backend architecture and codebase to identify technical debt, performance issues, and design limitations
  • Support the team in evaluating the current data model, APIs, and data processing logic
  • Implement improvements to backend services to address identified architectural or performance issues
  • Develop and maintain backend APIs supporting data ingestion, system operations, and platform integrations
  • Implement new features and enhancements requested by the customer
  • Support integration of external systems such as SCADA platforms and industrial monitoring systems
  • Troubleshoot and resolve production issues affecting backend services
  • Collaborate with DevOps and QA teams to maintain system reliability and performance
   

• Mandatory Skills Description:

  • 5+ years of backend development experience
  • Strong experience with NodeJS and modern backend frameworks
  • Cloud Infrastructure: Hands-on experience with AWS services (specifically Lambda, RDS, and S3).
  • Python Proficiency: Practical experience with Python for backend logic or data processing (this is a must-have for this specific role).
  • Architectural Proficiency: Experience designing Microservices and robust REST APIs that handle high-throughput data ingestion.
  • Experience working with relational databases such as PostgreSQL
  • Basic understanding of blockchain integrations

Inforce — Software Development Company delivering high-quality web and mobile solutions for international clients.

Required Skills:
 

Backend:

• 1+ years of commercial experience with Node.js
• Strong knowledge of RESTful APIs and integrations
• TypeScript, NestJS
• MySQL or PostgreSQL
• Experience with Redis, RabbitMQ
   

Frontend:

• 1+ years of commercial experience with React.js
• TypeScript
• State management (Redux / RTK / MobX)
• Data fetching (SWR / RTK Query)
• React Hooks
• SASS, Bootstrap or similar
• Git
• Intermediate English or higher
   

Would be a plus:

• Experience with BullMQ

Responsibilities:

• Develop backend services and APIs
• Build and maintain React applications
• Work with databases and integrations
• Collaborate with team and participate in development process

We offer:

• Competitive salary 
• Interesting projects
• Paid sick leave and vacation days
• Professional and supportive team
• 50% compensation for professional courses
• Team-building activities and corporate events
• Office in the city center
  
  Grow your career with a team that values people as much as results.

What we’re looking for

We’re hiring a Senior Software Engineer who thinks beyond code. You understand business problems, translate them into solid technical solutions, and know how to prioritize what actually matters.

You’re not just experienced—you’re decisive. You know what to tackle now, what to defer, and what to delegate.

AI is a core part of how you work. You’ve been actively using AI-assisted development (ChatGPT, Cursor, etc.) for 3+ years and can consistently produce high-quality output—where ~80% of your code is AI-generated and meets production standards.

Our platform has evolved from a data middleware solution into a multi-layer, event- and workflow-driven system. You’ll help shape what it becomes next.

We’re a growing team, with strong engineering presence in and around Lviv.

Security and quality come first. We’re ISO 27001 certified and rely on structured, often AI-driven processes to deliver consistently high standards.

⸻

Requirements

6+ years of software development experience

Strong TypeScript (Node.js) skills

Proven ability to turn business requirements into scalable solutions

Strong architectural instincts and system design experience

Hands-on Azure experience (App Services, Functions, cloud-native)

Experience with REST APIs, JSON/XML

Solid DevOps and CI/CD experience

Strong communicator, fluent in English

⸻

What you’ll do

Own problems end-to-end: from business need to production solution

Design and build scalable systems in TypeScript on Azure

Make smart trade-offs and prioritize effectively

Use AI to accelerate development, testing, and documentation

Contribute to an event-driven, workflow-centric architecture

Improve reliability, performance, and security across the platform

Work closely with product and engineering to ship fast and well

⸻

Nice to have

Event-driven architecture experience

High-availability system design

Experience in healthcare/fintech or regulated environments

Familiarity with FHIR or similar standards

Remote full-time position. Freelance contract.

Location: Remote
Workload: Full-time
Project: long-term

About the role

We’re looking for a Backend Developer with strong Node.js/NestJS expertise to build and scale microservices-based systems. The role involves designing high-load services, working with distributed systems, and integrating modern backend patterns including async processing and real-time communication.

Requirements

• 3+ years of experience with Node.js and NestJS
• Strong experience with PostgreSQL, MongoDB, Redis
• Solid understanding of microservices architecture
• Experience with asynchronous processing (queues, event-driven systems)
• Ability to write scalable, maintainable, and reliable code
• Experience building REST APIs, WebSockets (WS/WSS), RPC services
• Ability to read and work with existing codebases
• High attention to detail

Nice to have

• Experience with Go / Golang
• Deep knowledge of NestJS (lifecycle, DI, custom providers, dynamic modules, scopes, Async Local Storage, reflector)
• Deep knowledge of Redis (MULTI/EXEC, data structures, Lua scripts, Pub/Sub)
• Basic understanding of prompt engineering, AI agents, skills

Responsibilities

• Develop and maintain microservices
• Design and implement high-load backend systems
• Work with event-driven and async architectures
• Optimize performance and scalability
• Collaborate with cross-functional teams

About the Company

Our client is a financial technology services provider dedicated to expanding global access to digital assets by building innovative solutions in the trading ecosystem. Their products provide exchanges, liquidity solutions, and enterprise-grade integrations for clients worldwide. We are looking for a skilled Middle Backend Software Engineer who not only writes code but also builds products with an "AI-first" mindset.

In this role, you will be a core member of our engineering team, translating complex financial and crypto concepts into intuitive, high-performance applications. You will thrive on solving technical puzzles and collaborating in a fast-paced, rapidly growing environment.

What You'll Do

You'll be a key builder in our development lifecycle, focusing on product-led engineering where AI is a central component of both the product and your workflow. Your main responsibilities will include:

• Core Product Development: Develop, test, and maintain user-facing features for our exchange and liquidity platforms using TypeScript and Nest.js.
• AI Integration: Implement and optimize AI-driven features within the product to enhance user experience and operational efficiency.
• Collaboration: Work closely with product owners, UI/UX designers, and backend engineers to translate requirements into fully functional, enterprise-grade applications.
• Code Quality & AI Co-piloting: Write clean, testable code while leveraging AI tools to supercharge your productivity and maintain high-quality standards.
• Performance Optimization: Optimize components for maximum performance and responsiveness, especially for data-heavy and real-time crypto interfaces.

Your AI-Native Advantage

We believe AI is a powerful co-pilot for modern development. We're looking for someone who:

• Is eager to use AI to supercharge their daily work and development speed.
• Constantly explores new ways to integrate AI/LLM capabilities into the product lifecycle.

Who You Are

You are a proactive, detail-oriented, and adaptable developer who thrives in a fast-paced environment. You are:

• A Clear Communicator: You can effectively articulate technical decisions and AI-driven solutions to both technical and non-technical teammates.
• A Problem-Solver: You are self-motivated, resilient, and enjoy tackling complex technical puzzles to build robust solutions.
• A Tech Visionary: You have a curious mindset with a strong interest in (or passion for) blockchain, cryptocurrency, and AI technology.
• A Team Player: You value collaboration and feedback, contributing positively to the team's shared goals.

Qualifications

• English: Upper-Intermediate level or higher (both written and verbal).
• Experience: 2+ years of professional software development experience, with a strong focus on building products.
• Technical Stack:
  • Proficiency in Node.js/Nest and TypeScript.
  • Experience with MySQL, Redis and AWS.
  • Familiarity with RESTful APIs and real-time data communication (WebSockets).
  • Experience with React/Next. 
  • Proficient with Git version control and collaborative workflows.
• Education: A Bachelor's degree in Computer Science or a related field (or equivalent practical experience).

Bonus Points:

• Experience working in Fintech, Trading, Blockchain, or Crypto.
• Demonstrated experience in building features that utilize AI/LLM APIs.

We Offer

• Health & Wellness: Medical Insurance in Ukraine and Multisport program in Poland.
• Flexibility: Flexible working hours and offices in Ukraine and Poland (Wroclaw).
• Career Growth: Mentoring, educational programs, and English classes up to three times a week.
• Work-Life Balance: Paid vacation, sick leaves, and all official holidays.
• Support: All necessary equipment provided and tax/accounting services for Ukrainian contractors.
• Culture: Regular corporate activities (parties, team buildings, sports events) and an advanced bonus system.

We are looking for a Senior Full Stack Developer on behalf of our client, an Israeli deep tech company building a cloud-native platform for monitoring critical infrastructure at scale. The company operates at the intersection of industrial intelligence, real-time monitoring, and enterprise software, helping utilities, energy providers, and infrastructure operators detect threats, anomalies, and operational events across pipelines, power lines, railways, and perimeter assets. Its production platform processes continuous streams of sensor data, applies machine learning-driven classification, and delivers actionable insights through a sophisticated command-and-control interface integrated with enterprise systems such as SCADA and Digital Twins.

In this role, you will work across the stack with a strong frontend focus, building the user-facing applications that power maps, dashboards, real-time alerts, and operational workflows used daily by enterprise customers and field teams. This is a long-term opportunity to contribute to a live, technically advanced product with real-world impact and large-scale deployment.

Responsibilities:

• Design and deliver scalable, high-performance full stack applications from architecture through production.

• Build modern, responsive, and data-rich frontend applications using Next.js, React, TypeScript, and component-driven UI approaches.

• Develop backend services, APIs, and business logic with NestJS in a cloud-native environment.

• Own frontend-heavy features end to end, including architecture, implementation, testing, deployment, and ongoing optimization.

• Create intuitive user experiences for complex operational data, including geospatial and map-based interfaces, dashboards, and alerting workflows.

• Collaborate closely with product managers, R&D teams, and domain experts to translate technical and operational needs into robust software solutions.

• Improve performance, reliability, scalability, and security across AWS-based infrastructure running on Docker and Kubernetes.

• Leverage modern AI-assisted engineering tools to accelerate development, enhance code quality, and improve delivery efficiency.

• Participate in architectural discussions, code reviews, and engineering best practices while mentoring other developers.

Requirements:

• 7+ years of experience as a Full Stack Developer or in a similar senior software engineering role.

• Strong hands-on expertise in frontend development with Next.js, React, and the broader TypeScript ecosystem.

• Proven experience building complex, data-heavy, user-centric web applications with a strong emphasis on performance and usability.

• Solid backend development experience with NestJS, RESTful APIs, and service-oriented or microservices-based architectures.

• Excellent proficiency in TypeScript across both frontend and backend layers.

• Hands-on production experience with AWS services such as Lambda, ECS or EKS, S3, RDS, and related cloud-native infrastructure patterns.

• Strong experience with Docker and Kubernetes for containerization, orchestration, and scalable deployment.

• Experience working with modern UI libraries and design systems such as Chakra UI or similar component frameworks.

• Practical experience with Cypress or comparable testing frameworks for end-to-end and frontend testing.

• Experience building map-based or geospatial interfaces and visualizing real-time operational data.

• Familiarity with SQL and/or NoSQL databases and sound understanding of data modeling for high-throughput systems.

• Strong understanding of system design, scalability, reliability, and secure software development practices.

• Active experience using AI-powered developer tools such as Claude Code, Code Rabbit, or similar to improve engineering productivity and code quality.

• Relevant higher technical education in Computer Science, Software Engineering, or a related field.

• Upper-Intermediate or higher English communication skills, with the ability to work effectively in cross-functional international teams.

• Strong ownership mindset, excellent problem-solving abilities, and readiness to take full responsibility for end-to-end feature delivery.

• Experience thriving in startup or fast-paced product environments.

Nice to have:

• Experience with microservices architecture in cloud-native production systems.

• Familiarity with Python and Dash for data-centric or analytical applications.

• Background in performance optimization, distributed systems, or real-time event-driven platforms.

• Experience integrating enterprise environments such as SCADA systems, Digital Twins, or industrial monitoring platforms.

This position is ideal for a senior engineer who enjoys owning meaningful product features, solving complex technical challenges, and building software that supports the safety, resilience, and operational efficiency of critical infrastructure worldwide.

У NeverEnding ми створюємо ігри, які дійсно “затягують” — і зараз шукаємо Senior/Lead Backend Node.js Developer, який допоможе побудувати та масштабувати серверну інфраструктуру для наших slot, instant та crash ігор.

Це роль для Senior розробників з швидким розвитком у Lead позицію.

Що ти будеш робити:

• Проектувати, розробляти та підтримувати бекенд-сервіси на Node.js.
• Розвивати внутрішні API та інтегрувати сторонні сервіси.
• Працювати з високонавантаженими системами та оптимізувати їх продуктивність.
• Забезпечувати стабільність, масштабованість і надійність системи.
• Брати активну участь в архітектурних рішеннях та дизайні системи.
• Налаштовувати та покращувати процеси моніторингу, логування та обробки інцидентів.
• Проактивно знаходити вузькі місця та пропонувати технічні покращення.

• Тісно співпрацювати з CTO, DevOps та продукт-командою.

   

Що ми очікуємо:

• 5+ років досвіду у backend-розробці (Node.js).
• Сильна експертиза у TypeScript, Express/NestJS, GraphQL або REST.
• Практичний досвід з PostgreSQL та Redis.
• Досвід роботи з масштабованими та розподіленими системами.
• Досвід роботи з Docker та Kubernetes.
• Розуміння та досвід побудови CI/CD-процесів.
• Англійська: B1+

Ми шукаємо людину, яка:

• Мислить системно, а не тільки на рівні коду.
• Бере відповідальність за стабільність і продуктивність.
• Любить складні технічні задачі.
• Проактивна та комфортно почувається у швидкому середовищі.
• Розуміє зв’язок між технічними рішеннями та бізнес-результатом.

Буде плюсом:

• Досвід у iGaming / gaming / high-load B2C продуктах.
• Робота з message brokers (NATS, Kafka тощо).
• Практичний досвід з ClickHouse.
• Досвід з інструментами моніторингу (Hyperdx, Grafana тощо).

Чому варто приєднатися до NeverEnding:

• Реальний вплив на архітектуру та технічні стандарти.
• Робота з real-time системами, де кожна мілісекунда має значення.
• Пряма взаємодія з фаундерами та продуктовою командою.
• Швидкий розвиток, мінімум бюрократії та швидке прийняття рішень.
• Стартап з амбіцією стати провайдером нового покоління в iGaming.

📍 Формат: Remote або Hybrid 

🕐 Графік: Повна зайнятість 

💰 Зарплата: Конкурентна — обговорюється 

Tech stack: Node.js, TypeScript, Express, GraphQL, PostgreSQL, Redis, Kubernetes, ArgoCD, AWS