Jobs Node.js

Hi there,

We’re looking for a talented Senior Node.js Developer to help build the next generation of AI-driven finance solutions.

Location: Europe only, preferably Poland.

About the project:

Our client provides an AI-powered platform that revolutionises corporate expense management by automating approval workflows, tracking real-time spending, and offering data-driven budgeting insights.

Designed for mid to large-sized businesses (200 to 10,000 employees), the solution ensures scalability and flexibility, enabling greater control over expenses while enhancing employee autonomy.

By replacing traditional expense reports, it streamlines financial processes, helping companies embrace digital finance through intelligent, integrated software!

Requirements:
— 7+ years of backend development experience with production systems
— Proficiency in Node.js for building scalable backend applications
— Strong experience with SQL databases (MySQL, PostgreSQL), including query optimization and performance tuning
— Familiarity with backend frameworks such as Express.js or similar
— Experience working in Agile environments
— Strong analytical and problem-solving skills for performance optimization and system efficiency
— Excellent collaboration and communication skills within cross-functional teams
— Experience with cloud services (AWS, GCP, Azure)
— Familiarity with microservices architecture and containerization (Docker, Kubernetes)
— Knowledge of CI/CD practices
— Strong experience with AI development tools and frameworks
— Upper-Intermediate English level or higher

Responsibilities:
— Design, implement, and maintain scalable, secure, and high-performance backend systems
— Build and manage RESTful APIs for seamless integration and smooth user interactions
— Optimize database queries, manage schemas, and ensure data integrity with large datasets
— Collaborate with frontend engineers, product managers, and cross-functional teams to deliver impactful features
— Contribute to system architecture design, ensuring scalability, resilience, and maintainability
— Participate in code reviews, refactor code for performance, and suggest optimizations
— Ensure backend processes follow security, compliance, and data privacy best practices
— Monitor and optimize backend performance for a smooth user experience

What we offer:
— Flexible Work Environment: Opportunity to work remotely
— 1:1 English Classes: Individual English language training to enhance communication skills
— Great Team: Supportive, collaborative, and dynamic international team
— Equipment Provided: All necessary equipment supplied for efficient job performance
— Annual Vacation: 18 days of paid vacation and 7 days of paid sick leave
— Commitment to Hiring Ukrainians: Dedicated to hiring Ukrainian talent and promoting Ukraine as a fantastic place to work
— Flexible Payment System: Allows you to withdraw funds easily with multiple options

Does this position sound like a perfect match? We’re eager to hear from you!

We're looking for a Middle/Middle Strong Node.js developer with 3+ years of experience to join our team and contribute to an innovative project focused on transforming HR operations with AI. This is a fantastic opportunity to work on a platform that integrates with existing HR systems, handles a significant volume of employee requests, and automates various HR tasks, ensuring 24/7 personalized support across multiple communication channels.

Must have:

• Strong experience with TypeScript, Node.js, and PostgreSQL.
• Proven experience with AI/LLM integration.
• Solid understanding of backend architecture and API design principles.
• Product mindset with the ability to think beyond implementation details.
• Proactiveness and ownership mentality.
• Strong communication skills and ability to collaborate with cross-functional teams.
• Ability to work effectively in ambiguous environments and help define clear requirements.
• Experience working in startup environments.

• Upper - Intermediate or Advanced English communication skills.

   

Will be a plus:

• Experience with Microservices architecture;

   

Responsibilities:

• Develop and maintain high-quality backend services using Node.js and TypeScript.
• Design and implement robust integrations with AI/LLM models to enhance platform capabilities.
• Work with PostgreSQL to manage and optimize application data.
• Collaborate with cross-functional teams to deliver seamless and efficient HR solutions.
• Ensure the scalability, performance, and security of the platform.

• Participate in code reviews, contribute to architectural discussions, and drive continuous improvement.

   

 About the Project:

This intelligent HR automation ecosystem is designed to modernize workforce management by offloading high-volume administrative tasks. By syncing with internal directories and knowledge hubs, the system autonomously resolves nearly three-quarters of routine employee inquiries regarding compensation, corporate policies, and internal workflows. Beyond simple Q&A, it orchestrates end-to-end processes—from record updates to document generation—across global communication channels like Teams and Slack. The result is a 24/7 support layer that provides data-driven organizational insights while escalating high-priority cases to human experts.

Interview Stages

• 1-st stage - call with Recruiter
• 2-nd stage - Technical interview with our Senior developer

• 3-rd stage - Client interview

   

Our Benefits

• Projects with modern JS stack (React.js, React Native, Angular, Node.js)
• Strong JavaScript community at the company (50+ developers)
• Work from anywhere (fully remotely or in our office)
• Paid vacations and sick-leaves, additional days-off, relocation bonus
• Wellness: Medical insurance/ sport compensation/ health check-up+flu vaccination at your choice
• Education: regular tech-talks, educational courses, paid certifications, English classes
• Fun: own football team, budget for team-lunches, branded gifts
• One of the best IT employers in Lviv based on DOU rating (8th place among IT service companies in Ukraine, 11th place among all companies in Lviv).

About Evestar
Evestar is a full-service eCommerce growth agency that helps fast-growing brands scale through data-driven marketing, creative excellence, and technology innovation. We work with global eCommerce companies to optimize their performance, automate their operations, and leverage AI to achieve sustainable growth.

About the Role
We’re looking for a Software Engineer with strong backend experience and a passion for building modern automation and AI-powered systems. In this role, you’ll be working on the development of intelligent workflows and integrations using NodeJS, Python, and platforms like n8n, Supabase, and Airtable.

You’ll collaborate with our data and automation teams to design, build, and optimize scalable systems that connect APIs, automate business logic, and leverage LLM models such as ChatGPT, Grok, and Gemini to enhance decision-making and workflow efficiency.

Responsibilities:

• Design, develop, and maintain backend systems and automation workflows
• Build and integrate APIs (REST, GraphQL, Webhooks, etc.) between different platforms
• Create and optimize database queries (SQL / Supabase)
• Implement AI-based logic using ChatGPT, Gemini, or other LLM APIs
• Collaborate with cross-functional teams to turn business needs into scalable tech solutions
• Troubleshoot, monitor, and improve system reliability and performance

Requirements:

• Strong experience with NodeJS and JavaScript (TypeScript is a plus)
• Experience with Python for scripting or backend logic
• Solid understanding of REST APIs, authentication (OAuth2), and third-party integrations
• Knowledge of SQL and experience with relational databases (PostgreSQL, Supabase, etc.)
• Familiarity with cloud services (AWS, GCP, or similar) and Docker
• Excellent communication skills and C1+ English (both written and spoken)

Nice to Have:

• Experience with n8n, Zapier, or Make
• Understanding of AI / LLM APIs (ChatGPT, Gemini, Claude, etc.)
• Experience with Airtable, Notion, or other productivity platforms
• Familiarity with eCommerce tech stacks (Shopify, Klaviyo, etc.)

Why Join Us:

• Work with a forward-thinking agency integrating AI and automation into real-world eCommerce
• Opportunity to experiment with cutting-edge tools and build AI-driven systems from scratch
• Collaborative, fast-paced environment with a focus on growth and innovation

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.
• 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.
• 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.

About the Client

The client is a fintech company developing digital banking and financial solutions.

You will join the team to work on backend development and banking integrations.

Responsibilities

 • Backend development using Node.js
 • Integration with external banking and financial APIs
 • Development and maintenance of platform modules
 • Work with databases (SQL/NoSQL)
 • Collaboration with the client’s engineering team

Requirements

 • 4+ years of experience in backend development
 • Strong knowledge of Node.js
 • Experience with external API integrations
 • Understanding of databases (SQL/NoSQL)
 • English B1+

Nice to Have

 • Experience in fintech or banking projects
 • Knowledge of modern backend tools and approaches (e.g., microservices, Docker, CI/CD)

Benefits

• Fully remote collaboration
• 14 paid vacation days, 5 paid sick days, and 4 paid public holidays annually
• Opportunity to grow through hands-on experience
• Collaborative and supportive team where initiative is valued
• Annual salary review based on performance and contribution

Automat-it is where high-growth startups turn when they need to move faster, scale smarter, and make the most of the cloud. As an AWS Premier Partner and Strategic Partner, we deliver hands-on DevOps, FinOps, and GenAI support that drives real results.

We work across EMEA and the US, fueling innovation and solving complex challenges daily. Join us to grow your skills, shape bold ideas, and help build the future of tech.

We seek a Full Stack Team Lead to spearhead our R&D efforts, managing a senior team of 4 Full Stack developers and 3 Automation QAs. You will balance high-level technical execution of internal products that automate complex FinOps processes. A key priority is migrating our legacy monolith to microservices in parallel with a high-velocity feature backlog. To drive efficiency, the company fully covers all premium GenAI subscriptions.

📍 Work location: Remote Lviv

If you are interested in this opportunity, please submit your CV in English.

Responsibilities

• Maintaining exceptionally high standards for quality and work excellence while accelerating team velocity to handle a growing backlog of internal business process automations.
• Leading daily team operations, including stand-ups and tracking project timelines to ensure monthly delivery milestones.
• Driving hands-on development (70-80%), handling complex technical tasks and setting a high standard for code quality.
• Architecting and executing the migration of legacy JavaScript codebases to modern TypeScript microservices.
• Utilizing Cursor and other high-end GenAI models (e.g., Claude) to generate high-quality code and maximize development velocity.
• Collaborating with Product Owners and Stakeholders to translate high-level business requirements into technical roadmaps.
• Mentoring senior developers, providing technical guidance, and conducting code reviews, as well as interviewing and hiring new employees to scale the team effectively while maintaining architectural integrity.

Requirements

• Proven experience as a Team Lead or Tech Lead with a strong hands-on approach.
• Mandatory experience managing Fullstack engineers in Agile/dynamic environments (Kanban/Scrum) with a focus on maintaining high standards and frequent release cycles.
• Deep expertise in the Fullstack Javascript ecosystem, specifically Node.js, NestJS, Fastify, and React.
• Expert knowledge of TypeScript and experience with microservices architecture.
• Excellent experience with AWS services and a clear understanding of Cloud environments.
• Proficiency in using Generative AI tools for code generation (e.g., Cursor, Claude) and a mindset that prioritizes AI-assisted efficiency over manual coding.
• Interest in FinOps and Business Logic, with the ability to dive deep into financial calculation processes and billing automation.
• Written and verbal communication skills in English for collaborating with international stakeholders.
• Proactive and independent work style, capable of delivering under real project constraints and managing a senior-level team.
• Knowledge of PostgreSQL and modern ORMs/Query builders (e.g., Prisma).
• Experience with legacy migrations (specifically moving away from Strapi or vanilla JS) - an advantage.
• Excellent problem-solving skills

Benefits

• Professional training and certifications covered by the company (AWS, FinOps, Kubernetes, etc.)
• International work environment
• Referral program – enjoy cooperation with your colleagues and get a bonus 
• Company events and social gatherings (happy hours, team events, knowledge sharing, etc.)
• English classes
• Soft skills training

Country-specific benefits will be discussed during the hiring process.

Automat-it is committed to fostering a workplace that promotes equal opportunities for all and believes that a diverse workforce is crucial to our success. Our recruitment decisions are based on your experience and skills, recognising the value you bring to our team.

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. 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.

About

EdSpan is an innovative EdTech company dedicated to creating cutting-edge learning experiences that empower the next generation of students. Our collaboration with a US-based private school network helps us better understand user needs while expanding our B2C and B2B products to a broader audience. Our current focus includes an AI-guided tutoring experiences, a peer-to-peer tutoring platform, and a custom learning management system.

We operate within a framework of clearly defined processes supported by automation for routine tasks, and open, productive collaboration across the team. Our workflows are based on Agile principles, with daily stand-ups, bi-weekly sprints, and other key Scrum practices. At the same time, we keep meetings to a minimum to ensure everyone can stay focused on delivering high-quality results and continuing to grow professionally.

Requirements

• 4 or more years of experience in backend development
• Experience with PHP: version 8.0 and above, Laravel or Symphony frameworks
• Experience with NodeJS: any of TypeScript-based frameworks
• Good understanding of OOP principles and best practices (DRY, KISS, SOLID)
• Familiarity with Domain-Driven Design (DDD)
• Strong knowledge of relational databases (MySQL, PostgreSQL, etc.) and good understanding of non-relational databases (Redis, OpenSearch, or other)
• Practical experience with Docker, docker-compose, and CI/CD pipelines
• Experience writing unit and integration tests

• Intermediate level of English (B1) or above

   

Would be a plus

• Hands-on experience working with Large Language Models (LLMs) - third-party integrations or hosted models, Retrieval-Augmented Generation (RAG) pipelines, LLM Engineering Platforms
• Practical knowledge of cloud infrastructure (AWS or other providers) beyond basic object storage and compute instances

• Familiarity with real-time communication technologies such as WebSockets or WebRTC

   

Responsibilities

• Implement new features following architecture guidelines, review the code of your peers
• Write code following best practices, common design patterns, and Domain-Driven Design ideas
• Integration with 3rd party services (including LLMs, Payment Service Providers, Text-to-Speech, realtime communication and more)
• Debug and fix issues on staging and production environments
• Preparing Swagger schema definitions and implementing automated tests
• Scope decomposition and task estimation
• Participate in daily meetings and other scrum rituals

About us:

BetterMe — a global wellness ecosystem empowering millions to become better — physically, mentally, and emotionally. We build what makes people better and keep challenging ourselves to inspire others.
 

Your impact:

• Take part in the full development cycle — from technical research and solution design to release and production support;
• Design and build backend solutions using NestJS / Node.js / PostgreSQL for our products;
• Work on the frontend with React, Redux Toolkit, and Next.js to keep a strong end-to-end view of the product;
• Reduce technical debt and improve the stability, scalability, and overall code quality of the platform;
• Partner closely with Product and Growth teams to turn ideas and hypotheses into real features for users;
• Join architecture discussions, code reviews, and help shape our engineering standards;
• Collaborate with SRE/DevOps to improve CI/CD, monitoring, and release processes.
  
  About you:
• 5+ years of hands-on experience with in web development;
• 4+ years of backend experience with Node.js / NestJS;
• 3+ years of hands-on experience with JavaScript / TypeScript;
• Strong knowledge of PostgreSQL and experience with an ORM (TypeORM or Prisma);
• Solid frontend skills with React, Redux Toolkit, and Next.js;
• Good understanding of CSR, SSR, and SSG and when to use each in modern web apps;
• Experience writing unit and integration tests;
• Comfortable discussing architecture, design patterns, and best practices;
• Proactive, open to feedback, and confident working in a team environment;
• Product-minded — you care about how technical decisions impact users and the business;
• Upper-Intermediate English level.
  
  Will be a plus:
• Actively use AI tools like Cursor, GitHub Copilot, ChatGPT, or Claude Code;
• Experience with AWS, Kubernetes, and CI/CD pipelines;
• Hands-on work with third-party services such as: Payment providers (Solidgate or similar), Email marketing platforms, Zendesk or customer support tools;
• Understanding of product and business metrics like LTV, ARPU, CPA, and conversion rates.
   

What you get at BetterMe:
A mission that inspires. Every line of code, every design, every idea helps millions of people become healthier and more confident.
Trust without micromanagement. You manage your time and make decisions independently. We value outcomes, not online hours.
Growth opportunities. 90% of our leads have grown within the company. There’s space for initiative, new responsibilities, and real career upgrades.
Flexible work format. Choose what works best for you — office, remote, or hybrid.
Wellness in practice. Offline: workouts with professional trainers in our corporate gym, massage, corporate lunches, sports, and team activities — everything you need to recharge and reset together. Online: regular online workouts, partner discounts, and free access to our products.
Health insurance & corporate doctor.
Time off & balance. 20 paid vacation days, paid sick leave, and additional days off around public holidays.
Open communication. Transparency across teams, honest feedback, and support for initiatives are part of our everyday culture.
Support for sports events. We cover entry fees and encourage the team to compete and participate together.
Modern equipment. We provide new hardware and everything you need for productive work.
Legal & finance support. Experienced lawyers and financial specialists are always there to help — from documents to personal consultations.
 

Find more about us on social media platforms: Instagram, LinkedIn.

ABCloudz is a dynamic technology company specializing in software development, modernization, and digital transformation, with a strong focus on building AI-driven solutions.
We are looking for a motivated Trainee Software Engineer who is eager to grow in development and take part in AI research and implementation.
If you already have a foundation in JavaScript, TypeScript, and Python and want to develop your skills while working with AI and Web3 technologies, this is the perfect opportunity to start your career and Internship Program with us.

Requirements

• Willingness to learn and thirst for knowledge
• Basic knowledge of Object Oriented Programming
• Solid knowledge of Java Script and TypeScript
• Knowledge of Python
• Understanding of basic NodeJS concepts
• Understanding REST API
• Experience with Linux-like OSs, console
• Basic understanding of algorithms and data structures
• Basic knowledge of Git, Docker (console or UI clients)
• Experience with relational DBs, basic SQL knowledge

• At least the Intermediate level of English

   

Will be a plus

• Understanding WebSockets
• Understanding software architectures and architecture patterns
• Familiarity with module testing
• Understanding NoSQL DBMS (MongoDB, Redis)
• Familiarity with Nest.JS
• Familiarity with LLM and ML

• Familiarity with web3 technologies

   

Responsibilities

• Develop and maintain backend features using Node.js and NestJS under guidance
• Implement REST and basic GraphQL endpoints following existing patterns
• Contribute to microservice-based applications
• Implement simple inter-service communication using NATS or RabbitMQ. Handle basic event publishing and consuming
• Assist in integrating LLM-based features using existing SDKs or APIs
• Interact with blockchain networks using libraries
• Assist in implementing wallet-based authentication
• Implement and test smart contract interactions
• Write clean, readable, and well-documented code
• Fix bugs and address technical debt in existing services
• Write basic unit tests (Jest)
• Participate in code reviews (as a learner)

We are looking for a highly experienced Senior Backend Engineer with a strong background in designing and developing scalable backend systems

Key Responsibilities

• Design, develop, and maintain robust backend services using NestJS, following best practices in modular architecture, DI, and middleware design.
• Architect and optimize complex PostgreSQL schemas, including migrations, relationships, and handling of semi-structured data via JSONB.
• Set up and tune Elasticsearch for multilingual, full-text search with support for analyzers, stemming, and synonyms.
• Implement and maintain synchronization strategies between PostgreSQL and Elasticsearch, using queues or manual sync mechanisms.
• Build reliable, well-documented RESTful APIs; experience with GraphQL is a strong advantage.
• Ensure secure access control, rate-limiting, and robust authentication mechanisms.
• Utilize Redis for caching, rate-limiting, and background job processing (e.g., Elasticsearch sync jobs).
• Write clean, maintainable, and thoroughly tested code using Jest or similar testing frameworks.
• Collaborate with cross-functional teams, take ownership of feature delivery, and contribute to the overall architecture and tech roadmap.

Required Skills

• 5+ years of professional experience in backend development, ideally within high-scale or real-time systems.
• Production-level experience with NestJS, PostgreSQL, Elasticsearch, and Redis.
• Deep understanding of system design, data modeling, and query optimization.
• Solid grasp of event-driven architecture and asynchronous job processing.
• Comfortable working in fast-paced, product-focused environments.
• Excellent problem-solving skills and a proactive mindset.
• English: B2 level or higher – able to clearly articulate technical concepts and actively participate in discussions.

Metamindz is a UK-based IT software company providing fractional CTO services and building high-tier digital products. 

We are looking for a Senior Software Engineer to join a very early-stage, self-funded startup that is building a mobile-first product aimed at transforming how pet-care businesses(dog walking, pet sitting, training, etc.) operate day-to-day.

The product will help pet-care companies manage schedules, assign freelancers (dog walkers, sitters, trainers), handle invoices and receipts, and run their operations more efficiently - all from a single mobile app.

This position is for a strong, product-minded engineer that would be excited about building the first production version of the app.

Responsibilities:

• Build and ship the first version of a React Native mobile application from existing designs
• Implement core product features including scheduling, assignments, and basic operational workflows
• Develop and maintain a backend using NodeJS and TypeScript
• Work with Supabase or Firebase for authentication and real-time features
• Design and work with SQL databases, ensuring clean schemas and reliable data flows
• Handle app submissions and updates for App Store and Google Play
• Collaborate closely with founders and product stakeholders
• Use AI tools pragmatically to increase development speed and quality, while reviewing and owning the output
• Write clean, maintainable, and production-ready code with a strong sense of responsibility

Requirements:

• 4+ years of commercial experience with React Native
• Proven experience publishing apps to the App Store and Play Store
• 3+ years of commercial experience with NodeJS and TypeScript
• Hands-on experience with Supabase and/or Firebase
• Strong understanding of SQL databases and experience using ORMs
• Solid engineering fundamentals and ability to work independently
• Professional proficiency in English (written and spoken)
• Strong soft skills, clear communication, and ownership mindset
• Comfortable using AI as a productivity multiplier
   

Nice to Have:

• Experience working with very early-stage or lean startups
• Product-oriented mindset and ability to make pragmatic technical decisions
• Previous experience building MVPs or v1 products from scratch

What We Offer:

• Short-term contract engagement (3–4 months) with clear scope and ownership
• Fully remote work and flexible schedule
• Direct impact on a real product from day one
• Minimal process, no bureaucracy, no micromanagement
• Opportunity to shape the technical foundation of a growing product
• Competitive contract compensation, aligned with seniority and impact

How to apply:

Please send a short blurb about yourself and your favorite ice cream flavor (mine is cherry) :)

We are looking for a strong, productive engineer to work directly with our Lead Engineer and CTO.

The role is backend-focused, with significant responsibility for asynchronous processing and integrations, while also implementing frontend integrations in React / Next.js, including GraphQL queries, mutations, and UI components (minor effort).

This is not an entry-level role. You are expected to be comfortable working with TypeScript, NestJS, and React / Next.js in production, within an AWS-based environment. You’ll work with the following technologies:

Backend

• Node.js, TypeScript, NestJS
• Event-driven patterns
• GraphQL (Apollo Server) as BFF 
• PostgreSQL (MicroORM), Redis

Async & Messaging

• RabbitMQ
• Producers, consumers, retries, idempotency, message durability 

Frontend

• React, Next.js (App Router)
• GraphQL (Codegen, Apollo Client)
• Ant Design, SCSS Modules

Infrastructure

• AWS (EKS), Cloudflare
• Terraform
• gRPC (Protobuf)

What You’ll Do:

• Build backend features end-to-end: implement business logic, asynchronous workflows, and data synchronization.
• Design and implement GraphQL resolvers and schemas used directly by the frontend.
• Build and maintain integrations with external systems (CRMs, vendors, APIs), including authentication, retries, and failure handling.
• Implement frontend integrations in React / Next.js: write GraphQL queries and mutations and connect them to UI components.
• Provision and use infrastructure resources required by your features using Terraform (you don’t own infra, but you use it).
• Ensure production readiness: logging, tracing, and tests where they matter.

Requirements

• 4+ years of professional engineering experience.
• Strong hands-on experience with TypeScript and Node.js.
• Production experience with NestJS and GraphQL.
• Comfortable working with React / Next.js beyond basic UI changes.
• Experience integrating with third-party APIs, including OAuth and rate limiting.
• Practical understanding of AWS and ability to read and work with Terraform.
• Security-aware mindset when working with user data and identities.

Nice to Have

• Experience with Salesforce or other enterprise CRM APIs
• Experience with authorisation flows, token and session management, OAuth 2.0
• Experience working on projects with strict compliance requirements (e.g. HIPAA, SOC 2, ISO 27001).
• Interest in or experience with DevOps or information security

What We Offer

• Direct collaboration with the Lead Engineer and CTO.
• A greenfield system with no legacy constraints.
• High ownership and minimal process overhead.
• Fully remote work.
• High-end MacBook (M4 Pro) after the trial period.
• Relocation support to Australia after long-term collaboration.

We are hiring a Senior Backend Developer (Node.js) for a product company building an AI powered pricing and repricing platform for ecommerce sellers. The product helps online merchants automate pricing decisions across multiple sales channels, process large volumes of product and market data, and react to changes in real time to improve revenue and margins.

The platform is data intensive and integration heavy. It works with external marketplaces, payment systems, messaging providers, and internal automation pipelines. A significant part of the system is focused on scalable REST APIs, background job processing, real time updates, and reliable communication between services.

The backend is cloud native and runs on GCP. It is built around Node.js and Express, with MongoDB as the primary database, Redis for caching and queues, and OpenSearch for search and indexing. The system operates under high load and requires careful attention to performance, scalability, and data consistency.

In this role, you will work on core backend services, design and evolve APIs, integrate third party services, and improve the existing codebase. You will be involved in architectural decisions, refactoring, and ensuring high code quality through testing and reviews.

Responsibilities

• Develop and maintain backend services using Node.js and Express

• Design and implement REST APIs and third party integrations

• Work with MongoDB, Redis, and OpenSearch to ensure data efficiency and scalability

• Build and maintain background jobs, queues, and real time communication features

• Integrate external services such as payment providers, email and SMS services

• Write unit and integration tests and participate in code reviews

• Optimize performance, reliability, and scalability of backend systems

• Work with an existing production codebase, including refactoring and improvements

Requirements

• 5 or more years of commercial experience with Node.js

• Strong experience with Express and REST API design

• Solid knowledge of MongoDB, including Mongoose, aggregations, and indexing

• Hands on experience with Redis for caching, queues, or pub sub

• Experience writing automated tests using tools such as Mocha, Chai, or Supertest

• Good understanding of Git based workflows, code reviews, and collaboration

• Experience integrating third party APIs

• Confident English level sufficient for daily work in an international team

Nice to have

• Experience with TypeScript or migrating JavaScript projects to TypeScript

• Experience with GCP services such as Cloud Run, KMS, or Cloud Storage

• Experience with OpenSearch or Elasticsearch

• Experience with WebSockets or real time communication

• Experience with Stripe payments and webhook handling

• Experience with Google APIs, OAuth 2.0, or email processing

• Understanding of background job processing and queue based architectures

• Knowledge of web application security principles

This is a long term opportunity to work on a mature product with real customers, meaningful scale, and a strong technical backend focus.

Role Overview:

We are seeking a highly experienced Senior Node.js Engineer to join our growing engineering team. As a senior member of our team, you will take on a leadership role in designing, implementing, and scaling highly performant systems. You will work with cloud infrastructure, primarily AWS, and build robust microservices that support high-load, real-time applications.

You will be responsible for architecting complex systems, ensuring scalability and efficiency while also providing mentorship to junior developers. This is an exciting opportunity for a self-driven, technically versatile engineer who is comfortable working independently and thrives in a fast-paced, collaborative environment.

Key Responsibilities:

• Architecture & Design: Lead the architecture and design of high-performance, scalable, and fault-tolerant Node.js applications and microservices running in a cloud environment (primarily AWS).
• Cloud Infrastructure: Utilize AWS services such as EC2, Lambda, RDS, DynamoDB, SQS, and others to ensure that applications are highly available, secure, and performant.
• Microservices: Build and manage distributed, high-load microservices that can scale effectively and handle large volumes of concurrent traffic.
• High-Performance Systems: Optimize Node.js applications for performance under high load, ensuring minimal latency and maximum throughput.
• Multithreading: Implement advanced multithreading techniques to enhance system performance and concurrency.

• Code Quality & Best Practices: Write clean, maintainable, and efficient code while adhering to industry best practices and design patterns.

   

  Required Qualifications:

• At least 5 years of experience as a Backend Developer.
• In-depth knowledge and experience developing API’s and microservices
• Strong proficiency with JavaScript, and Knowledge of Node.js and frameworks available for it (such as Express or equivalent)
• Understanding the nature of asynchronous programming and its quirks and workarounds
• Understanding fundamental design principles behind a scalable application
• Experience working with various data storage solutions such as Redis, MongoDB, etc.
• Experience working with Queuing solutions such as gearman, RabbitMQ, SQS, etc.
• Implementing automated testing modules and unit tests
• Proficient understanding of code versioning tools, such as Git
• Experience with cloud services such as AWS and GCP
• Experience working with Linux

• Experience with CI/CD processes

   

  Desired Qualifications:

• Containerization & Orchestration: Familiarity with containerization (Docker) and orchestration tools (Kubernetes).
• Advanced Monitoring & Logging: Experience setting up advanced monitoring, logging, and alerting systems using tools such as AWS CloudWatch, Datadog, or ELK Stack.
• Security Best Practices: Understanding of secure coding practices and experience implementing security measures in cloud-based applications.