Jobs Node.js

SKELAR is a venture builder that builds international IT product companies according to the rules of the venture capital world. Together with our co-founders, we assemble strong teams to launch tech businesses and win in global markets.

We are currently looking for a Backend Engineer (MarTech).

We are Leaply, an ecosystem of digital and physical products designed to help people build healthy habits and improve their quality of life. We operate in global markets - the US, Tier 1, Europe, and beyond.

In June 2024, we launched an app focused on habit-building, using a subscription-based monetization model and a performance-first marketing approach (Meta, Google, TikTok). Within the first two months, we achieved positive unit economics and are now on track to grow 10x by the end of the year.

Our team is building its third business together, with successful exits behind us and a deep understanding of our niche and target audience. We move fast, communicate openly, and set ambitious goals.

What you’ll do:
— Build and evolve a unified marketing technology platform — not just a collection of tools, but a cohesive system that directly drives business performance;

— Take full ownership of 5+ existing services (Hokuto, UA automation, Creo Factory, Revealbot, Creo-translate): evaluate their current state, identify architectural bottlenecks, and systematically improve reliability, scalability, and maintainability;

— Develop and maintain production-grade integrations with Meta / TikTok / Google — ensuring robust error handling, rate limiting, retries, and clear monitoring so the system operates reliably without silent failures;

— Redesign the tracking architecture by shifting from client-side to server-side (CAPI pattern for Facebook and similar platforms), implement proper test coverage, and build tools that allow Growth Managers to independently configure tracking for their funnels;

— Eliminate manual operational workflows (e.g., in Airtable) and enable marketing teams (UA managers, designers, growth managers) to operate independently without engineering support for routine tasks;

— Proactively identify and implement new martech solutions before they become bottlenecks - shaping the long-term vision of the domain and driving technical and product priorities.

This role is for you if...

Must-have

— 3+ years of commercial backend development experience;

— Node.js / TypeScript as the main stack;

— Strong experience building reliable API integrations — including error handling, rate limiting, retries, and webhooks;

— GCP experience — Cloud Functions, Cloud Run, BigQuery, Firestore, or similar cloud environments;

— Systems thinking — able to see the system beyond individual tasks; independently designs architecture and defines development priorities;

— High level of autonomy — does not require a PM to define tasks; identifies problems and proposes solutions independently;

— Ability to collaborate with non-technical stakeholders — UA managers, designers, growth managers;

— Ownership mindset — proactively identifies risks, drives solutions, and thinks in terms of business impact;

— Uses AI as part of their workflow to move faster and think broader.

Nice-to-have

— Experience with Meta Business SDK / TikTok Marketing API / Google Ads API;

— Understanding of performance marketing — ROAS, CAPI, pixels, attribution;

— Experience building server-side tracking (e.g., Facebook CAPI or similar);

— Experience with marketing automation tools (Airtable automations, Make/Zapier, or custom solutions);

— Experience working on B2C subscription products with aggressive performance marketing.

SKELAR is an environment for self-realization of people who are able to create successful companies. We call such companies the next big everything. We believe in their power and scale.

To do this, we have created all the opportunities within our venture builder:

— 8 infrastructure teams that help businesses close any issues: from recruiting and communications to finance and legal issues;
— A community of founders who have already launched more than one business and can share practical experience;
— Internal clubs by professional areas: marketing, development, finance, recruiting, brand ambassadorship;
— Trainings, courses, attending conferences;
— Health insurance.

3-month project with possible continuation.

The project is a business platform consisting of 2 mobile apps, 2 web interfaces and admin dashboards for cleaning-on-demand and their back office.

Development from scratch, in a team of 7 developers. Your primary focus will be the development of server-side logic, working with AWS, and the creation of endpoints to serve front-end tasks.

Urgent position, start ASAP.

Responsibilities

· Integration of user-facing elements developed by front-end developers with server-side logic.

· Work with React Native and React.js developers and the architect to deliver the scope milestone by milestone.

Skills And Qualification

MUST Have's:

Node.js 

JavaScript / TypeScript 

NestJS

Fastify

Express 

PostgreSQL 

TypeORM 

Redis 

Docker

Will be a plus:

Achitecture and Patterns

Microservices

WebSockets

Message Brokers 

CI/CD 

AWS Elasticsearch 

Grafana 

Prometheus

ЩО МИ ПРОПОНУЄМО:

- FULLTIME;

- Робота з новими технологіями на потоці;

- Гнучкий графік (важливо бути на зв'язку з 10 до 17);

- Робота з ФОП

Про компанію RedCat

RedCat is an IT company offering web and mobile development services to the international market. Today we are fully remote (obviously).

We are a team of professionals with 5 years of experience in the design and development of innovative solutions for startups and small businesses in different business domains of Western Europe and the USA, Israel and Australia.

Our technology stack:

- React.js, React Native;

- Node.js

- Blockchain/Polygon

- iOS development

- Android development

- QA and DevOps

- AI tools

Recruiting process:

- CV submission

- Test task

- Tech interview and organizational interview (1:15 min)

- Offer or full feedback provision

- Onboarding plan and activities (30 min)

About the project

Working through Emilus as part of a partnership with a global consulting company. The end client is a UK-based telecom. You'll join a distributed engineering team building scalable backend services on AWS serverless infrastructure.
 

Requirements

• 2+ years of backend development with Node.js / TypeScript
• Experience with AWS: Lambda, API Gateway, SNS/SQS, CDK (Infrastructure as Code)
• Comfortable writing unit, integration, and TDD-style tests
• Experience with CI/CD pipelines (AWS CodeBuild or similar)
• Ability to do meaningful code reviews, not just rubber-stamping
• Operational mindset: monitoring, scaling, resilience, security — not just "it works on my machine"
• Can translate product requirements into implementable tasks independently
   

Nice to have

• DynamoDB and/or Aurora PostgreSQL
• CloudWatch alarms and dashboards
• GitHub Actions with AWS CodeBuild self-hosted runners
• Grafana for availability monitoring
• Event-driven architecture / microservices experience
   

Responsibilities

• Develop and own complex backend features end-to-end
• Deploy and maintain serverless applications on AWS
• Write and maintain technical documentation
• Collaborate with architects and leads on design and task breakdown

We’re looking for a Full Stack Developer (Vue.js + Node.js) to join our team and work on a long-term product in the AdTech space.

The project is a high-load SaaS platform focused on automating and optimizing digital marketing workflows. You’ll work on building scalable features, improving performance, and shaping the architecture of a data-driven product used in real-world marketing operations.

What you’ll do:

• Design and develop new features across frontend and backend
• Participate in system architecture and technical decisions
• Improve and refactor existing codebase
• Work with high-load systems and optimize performance
• Support production releases and ensure system stability

What we’re looking for:

• 3+ years of experience with Node.js and Vue.js
• Strong knowledge of JavaScript, HTML, CSS, and MySQL
• Experience with Git, Docker, and Unix-based systems
• Understanding of scalable architecture and high-load systems
• Nice to have: experience with Capacitor

What you’ll get:

• Work on a real product with active users and feedback
• Active team, fast decisions, and real impact on the product
• Competitive compensation
• Flexible environment and remote-friendly setup
• Paid learning and development support

Hiring process:

• Intro + technical interview (up to 90 minutes, includes test task)
• Offer & start

We don't expect everyone to meet every requirement we've mentioned. If you feel you could be a valuable addition to our team, we're excited to hear your story.

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.
• Strong hands-on 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.

Backend Engineer

[Freelance, Full-time, Remote]

SNEAK PEEK

⇨ Location: Remote, GMT+0/GMT+4

⇨ Interview process: HR interview + take-home challenge ⇨ technical discussion ⇨ final interview

WHO ARE WE? 

At Rounds, we believe in harnessing the power of cutting-edge technology to drive business success. Our transformative, AI technology identifies and optimizes mobile assets, while our team of experts, with their unparalleled human capital and business acumen, provides the strategic direction and support to turn mobile assets into profitable businesses. Together, we are revolutionizing the mobile industry. 

THE ROLE

This is a hybrid Backend/Platform Engineering role to lead cloud and backend systems migrations. It involves shipping backend solutions that move the needle at the scale of millions of dollars in business impact.

You will evaluate, plan, and migrate backend systems from various stacks and cloud providers (AWS, Azure, GCP, and more) into our infrastructure. By leveraging AI tools and automation, you will significantly accelerate migrations and modernization efforts.

This role suits Backend Engineers who aren't afraid to jump in and shape the DevOps stack.

Responsibilities

• Architect, evolve, and oversee backend infrastructure transformations (NodeJS, Python and more).
• Assess complexity, outline risks, and estimate effort and timelines.
• Rebuild or refactor backend/cloud components when needed, including rewriting services (with AI assistance).
• Utilize AI tools and agents to speed up research, refactoring, documentation, and investigations (Claude, Cursor and more).
• Design and maintain cloud environments using Infrastructure as Code (Terraform preferred) mainly for GCP, AWS and Azure.
• Build, maintain, and improve CI/CD pipelines.

Hiring manager: Igor Yakunin 

WHAT ARE WE LOOKING FOR?

Must-have:

• 5+ years Backend Engineering.
• Hands-on experience with GCP or strong AWS/Azure background and willingness to transition.
• Practical experience with Terraform (or similar IaC).
• Strong Linux, networking, and cloud fundamentals.
• Experience with Docker and containerized deployments.
• Proficiency in at least one backend language (Python, Node.js, Go, Java, etc.).
• Experience with SQL and/or NoSQL databases.

Nice-to-have:

• Experience with Kubernetes or other orchestration tools.
• Familiarity with CI/CD platforms such as CircleCI, GitHub Actions, GitLab CI, or ArgoCD.
• Experience with reverse-engineering unknown systems or digging through legacy setups.
• Experience with monitoring tools such as Datadog, Prometheus, or GCP Monitoring.
• Background in refactoring, rewriting, or modernizing backend services.

INTERESTED?

Our recruitment process consists of the following steps: 

• HR Interview (45 min) - Discuss your background and fit.
• Take-Home Challenge (~2 hours of work) - Practical assignment reflecting real work.
• Technical Interview (60 min) - Evaluate cloud, DevOps, and coding skills.
• Final Interview (60 min) 

Get in touch at hr@rounds.com. 

We look forward to hearing from you! 

About the Role

We are looking for a skilled Full Stack Developer to join a growing team of one of our Norwegian clients (mobility sector) and help to evolve a platform. You will work on modernizing and integrating two existing systems into a unified, scalable solution.

Tech stack: Node.js (API development), Vue.js (front-end), PostgresSQL (database), PHP, Supabase experience will be a plus.

Responsibilities

• Develop and maintain APIs using Node.js
• Work on and improve the Vue.js frontend
• Integrate legacy PHP/jQuery system into the modern stack
• Collaborate closely with the team through short, efficient standups
• Contribute to architecture and technical decisions
• Ensure code quality and scalability

Requirements

• Solid backend experience with Node.js/PHP
• Strong experience with Vue.js
• Experience working with PostgreSQL
• Understanding of REST APIs and modern web architecture
• Ability to work with legacy code (jQuery/PHP)
• Good communication skills and team mindset

Nice to Have

• Experience with Supabase
• Experience refactoring or migrating legacy systems
• DevOps or deployment experience

Team & Process

We value lean communication and efficiency:

• Short daily standups
• Direct collaboration with founders and developers
• Fast decision-making, low bureaucracy

Reasons to join us

• Fully remote work — flexibility to manage your schedule
• Friendly, supportive environment with minimal bureaucracy
• 20 working days of paid annual vacation + public holidays
• Paid sick leave
• Coverage for professional development (conferences, courses, webinars, certifications).
• Long-term collaboration with a mature, international team

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 1+ year of experience with NestJS or are ready to quickly adopt it.
– Have experience developing REST APIs and/or GraphQL services using NestJS.
– Have strong proficiency in TypeScript.
– Have hands-on experience with MongoDB, MySQL, or PostgreSQL.
– Have experience integrating third-party APIs and services.
– Have experience working with message queues (RabbitMQ, Kafka, or similar).
– Understand distributed systems architecture.
– Have experience using Redis for caching or Pub/Sub mechanisms.

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 with high-load systems, especially with live or real-time data.
– Experience writing automated tests (Unit, Integration, E2E).
– Experience with WebSocket, gRPC, or other real-time technologies.
– Knowledge of architectural patterns such as CQRS, Event Sourcing, or DDD.
– Experience with Docker, Kubernetes, or CI/CD pipelines.
– Experience working in the igaming or betting industry.

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.

We are looking for a Founding Engineer to join a fast-growing start-up developing a product for automated lead generation and recruitment outreach.  

Responsibilities: 

- Autonomously architect, prototype, & build the product from the ground up.

- Develop integrations with AI (e.g. Perplexity, OpenAI) & 3rd party API (e.g. CRMs).

- Leverage your prompt engineering skills to maximize the outcome.

- Horizontally work with founders in discussions on business & product topics.

Requirements: 

- 1+ years of experience in a SaaS/startup previously. 

- Senior-level engineer with 5+ years of software development experience. 
- Experience in RAG & AI agents development and prompt engineering.
- API development and integration experience.
- Database design and optimization (SQL).
- Development in cloud infrastructure (AWS/GCP/Azure).
- Patterns for asynchronous task processing (RabbitMQ, SQS, or similar).
- Experience with n8n/make will be a great plus.

- Authentic obsession with giving customers the best.
- Excellent verbal communication skills.

- Excellent English, strong B2 level minimum.

Job details:

• Full-time.
• Fully remote.
• Long-term.
• B2B contract.
• Start date — ideally ASAP / by mid-April.
• Also, you will get founding member equity % in addition to your fixed salary.

What else will you get:

- Learning how a startup grows.

- Direct impact on product and company strategy.

- Deliver value directly to paying B2B clients.

- Opportunity to build and lead a team and department.

- You will work with the most modern toolset (including Cursor in Agent mode).

The hiring process: 

• 45 min pre-screen interview with a recruitment manager
• 15-30 min call with the client
• a technical deep-dive interview, most likely with online coding (conducted by client)
• online call with the team or key team members

Smart-UI - full-stack development company 0 is looking for a Backend Developer (Node.js) to join our team and work on long-term projects (including e-commerce and marketplace platforms).

What you’ll be working on

• Development of backend services using Node.js / NestJS
• Building APIs and integrations
• Working with databases and high-load systems
• Payment system integrations (Stripe, PayPal)
• Participation in architecture decisions and system design

Tech Stack

• Node.js (NestJS preferred)
• PostgreSQL
• Redis

Requirements

• Strong experience with Node.js
• Experience with NestJS (or similar frameworks)
• Solid knowledge of REST API design
• Experience with PostgreSQL
• Understanding of Clean Architecture / DDD (big plus)

Nice to have

• Experience with Stripe / PayPal integrations
• Experience with e-commerce or marketplace projects
• Experience with WebSockets / real-time systems
• Experience with deployment (Docker, CI/CD, cloud)
• Experience working with scalable/high-load systems

What we offer

• Long-term projects (not short freelance tasks)
• Stable workload
• Opportunity to grow into a senior/lead role
• Flexible working format (remote)

Important

We’re looking for someone who:

• can take ownership
• understands architecture, not just coding
• can work in a team and communicate clearly

About the Role

We are looking for an experienced Senior Developer to lead and deliver advanced e-commerce solutions on Shopify. You will be responsible for building custom plugins, integrations, and scalable modules that power complex online businesses.

This role combines deep Shopify expertise with strong backend and frontend skills, working closely with product, design, and business teams.

Key Responsibilities

Shopify & E-commerce Development

• Design, develop, and maintain custom Shopify apps and plugins
• Customize Shopify themes and storefronts (Liquid, Hydrogen, APIs)
• Build and optimize advanced product workflows and checkout experiences
• Implement custom features such as:
  • Build-Your-Own-Box (BYOB)
  • Rating & Reviews Systems
  • Wishlist & Favorites
  • Subscription & Loyalty modules
  • Custom pricing and B2B logic

Systems Integration

• Develop and maintain ERP / MIRP / CRM integrations
• Implement automated data synchronization:
  • Orders
  • Inventory
  • Customers
  • Pricing
  • Invoices
• Build middleware services and APIs
• Ensure data reliability and performance

Reporting & Data

• Create custom reports
• Build automated exports and analytics tools
• Support financial, sales, and operational reporting
• Optimize data pipelines

Required Skills & Experience

Core Skills

• 3+ years of professional development experience
• Strong expertise in Shopify ecosystem
  • Custom Apps (REST & GraphQL APIs)
  • Webhooks
  • Admin APIs
  • Checkout Extensions
• Advanced knowledge of:
  • JavaScript / TypeScript
  • Node.js
  • REST & GraphQL APIs
• Experience with ERP / backend integrations
• Solid understanding of databases (SQL / NoSQL)

Shopify & E-commerce

• Theme customization (Liquid, HTML, CSS)
• Shopify Plus experience (nice to have)
• App development and deployment
• Performance optimization

DevOps & Tools

• Git / GitHub / GitLab / Bitbucket
• CI/CD pipelines
• Cloud platforms (AWS / GCP / Azure – bonus)
• Docker (bonus)

Bonus / Nice-to-Have Skills

• React / Next.js / Hydrogen
• Headless commerce
• Microservices architecture
• BI / analytics tools
• Payment gateway integrations
• Internationalization & multi-market setups
• Accessibility (WCAG)

Soft Skills

• Strong problem-solving mindset
• High attention to detail
• Ability to work independently
• Excellent communication skills
• Experience working with stakeholders
• Mentoring mindset

What We Offer

• Competitive salary / contract rate
• Flexible working hours
• Remote-friendly environment
• Challenging international projects
• Long-term growth opportunities
• Modern tech stack

Why Join Us?

You will work on complex, high-impact e-commerce systems, combining:

✔️ Custom Shopify development
✔️ Enterprise integrations
✔️ Scalable architecture
✔️ Modern frontend

You will have real ownership and influence over technical decisions.

We are looking for a Middle+ Backend Developer (Node.js) to join our team and work on an the software that integrates with business email accounts and time tracking/billing systems. 

🚀WHAT WE'RE LOOKING FOR:

• GOOD TO HAVE: experience with AI development
• 3+ years of commercial software development experience;
• Solid working knowledge of Node.JS / Mongo / AWS / Swagger;
• Understanding of network operations/protocols, experience with Socket.io/WebSockets;
• Good debugging skills;
• Thorough experience of RESTful service design, API design, and best practices for building resilient and maintainable distributed systems;
• Experience with Typescript

💻RESPONSIBILITIES:

• Develop and maintain the mobile application using React, ensuring high performance and responsiveness
• Implementation of new product features
• Collaborate with team members
• Participate in the code review process
• Be involved in planning, designing, and execution
• Outline project scope and schedule, and provide accurate estimates of quality.

🕗 WORKING SCHEDULE:

This is a full-time permanent position (full remote). 

WHY IVORYSOFT:

• Flexible remote work
• Competitive salary based on experience
• Opportunity to work on an AI-driven product
• Friendly and professional team
• Career and professional growth, regular performance, and salary reviews
• Remote work opportunity and flexible working schedule
• Building projects from scratch, working only with the latest technologies
• Team buildings and corporate activities
• Legal support for private entrepreneurs

If you're ready to join a team working on cutting-edge AI solutions, apply now! 🚀

Code&Care — is a successful full-stack development company, which provides clients with high-quality development assistance worldwide.

Now our team has a position for Full-Stack Developer (Node.js + Vue.js).

Requirements:

• 3+ years of commercial experience with Node.js
• Strong experience with Vue.js
• Solid knowledge of TypeScript
• Experience with MongoDB
• Hands-on experience with AWS (EC2, S3, etc.)
• Understanding of REST APIs and backend architecture
• Experience with Git
• Upper Intermediate English level

What the company offers:

• Constant and interesting work with foreign clients
• Flexible working hours
• 50% cost compensation of sports, English lessons
• Annual paid 30 days vacation and paid sick days
• Medical insurance policy

Responsibilities:

• Develop and maintain backend services using Node.js
• Build and improve frontend features using Vue.js
• Work with MongoDB databases
• Deploy and maintain applications in AWS
• Collaborate with cross-functional teams
• Participate in code reviews and technical discussions

About Us:

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

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

Key Responsibilities:

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

Qualifications:

• Minimum of 5 years of experience in backend development with strong proficiency in Node.js, NestJS, and related technologies.
• Knowledge or experience in Frontend development (specifically Next.js) is a significant plus.
• Knowledge or experience with automated tests (integration, E2E) is a significant plus.
• Willingness and mindset to work in a T-shaped model, contributing to various stages of the development lifecycle.
• Expertise in building and managing microservices architectures and a monorepo setup.
• Extensive experience with PostgreSQL (AWS RDS), Redis, and other backend data storage and caching technologies.
• Strong proficiency in AWS cloud services including but not limited to SQS, S3, Lambda, IAM, EC2, and EKS/ECS.
• Solid understanding of Docker, CI/CD pipelines, and experience with GitLab runners.
• Experience with monitoring tools such as Prometheus and Grafana.
• Proven ability to document backend architectures, designs, and processes clearly and comprehensively.
• Excellent problem-solving skills and attention to detail, with a passion for creating high-quality, performant code.
• Ability to work effectively both independently and as part of a team in an agile environment.
• Strong communication skills with the ability to interact professionally with stakeholders at all levels.
• English at Upper-Intermediate level and above.

What We Offer:

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

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

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

Key Responsibilities:

• Develop and maintain robust backend applications using Node.js and NestJS in a monorepo and microservices environment.
• Embrace and operate within a T-shaped approach, being ready to extend expertise beyond backend tasks to ensure end-to-end delivery of features.
• Work with PostgreSQL (AWS RDS) and Redis to design, implement, and optimize database and caching solutions.
• Develop and maintain integrations with various AWS services including SQS, S3, Lambda, IAM, System Manager, EC2, and EKS/ECS for cloud-native applications.
• Contribute to containerization and deployment processes using Docker, including building images and pushing to registries, implementing and maintaining CI/CD pipelines using GitLab runners.
• Implement and configure monitoring and observability using Prometheus and Grafana to ensure system health and performance.
• Collaborate closely with stakeholders and other developers to understand business requirements, translate them into high-quality technical solutions that meet those needs.
• Troubleshoot and debug backend issues, optimizing code to enhance performance and maintainability.
• Participate in the agile development process, contributing to scram events, fostering a collaborative and cross-functional team environment.
• Stay current with the latest technologies and best practices, and promote continuous learning and self-development within the team. Mentor other team members, providing guidance and sharing your knowledge.

Qualifications:

• Minimum of 2 years of experience in backend development with a focus on Node.js, NestJS, and related technologies.
• Knowledge or experience in Frontend development (specifically Next.js) is a significant plus.
• Knowledge or experience with automated tests (integration, E2E) is a significant plus.
• Willingness and mindset to work in a T-shaped model, contributing to various stages of the development lifecycle.
• Familiarity with microservices architectures and monorepo environments.
• Experience with PostgreSQL (AWS RDS), Redis, and backend data management.
• Knowledge of AWS services including SQS, S3, Lambda, IAM, EC2, and EKS/ECS.
• Understanding of Docker and CI/CD pipelines, with some experience using GitLab runners.
• Familiarity with monitoring tools such as Prometheus and Grafana.
• Ability to document backend designs and processes clearly.
• Strong problem-solving skills and attention to detail, with a drive to create high-quality, performant code.
• Ability to work both independently and as part of a team in an agile environment.
• Good communication skills, with the ability to interact professionally with team members and stakeholders.
• English at Upper-Intermediate level and above.

What We Offer:

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