Backend Engineer (Node.js) Job at Zoolatech (Wroclaw)

Backend Engineer (Node.js)

We are hiring a Backend Engineer (Node.js) who will act as a founding engineer f...

Location

Ukraine; Poland , Kyiv; Warsaw

Salary:

Not provided

SKELAR

Expiration Date

Until further notice

Requirements

3+ years of commercial experience building scalable web backends
Expert with Node.js (NestJS preferred) and TypeScript
Strong experience with PostgreSQL (transactions, isolation levels) and asynchronous architectures (Queues, Event-driven)
Hands-on DevOps experience: comfortable setting up CI/CD, configuring Docker, and managing resources in Kubernetes/GCP
Revenue-driven mindset
Proactive communication
Use AI in your workflow

Job Responsibility

Act as a cross-functional partner: Work directly with Payment, Marketing, and Ops teams to translate business goals into technical solutions
Own the Payments Domain: Design and build resilient payment infrastructure (Node.js/NestJS)
Infrastructure & DevOps: Take full ownership of your services' lifecycle — from architectural design to deployment and monitoring in cloud environment (GCP, Kubernetes, Terraform)
Data & Analytics: Build reliable data pipelines (BigQuery) to empower analytics
Collaborate, don't isolate: work closely with the wider Engineering Chapter
(Nice to have) Contribute to simple internal tools or dashboards (React/Next.js) to unblock Ops teams

What we offer

Competitive compensation
Founding Engineer Impact with high autonomy
No Legacy Bureaucracy
Strong Community: Regular knowledge-sharing sessions
Office in Warsaw or Kyiv with generator/Starlink, plus perks (lunches, gym, health insurance)
A meaningful mission - helping people live better lives

Fulltime

Backend Engineer (Node.js)

Are you an engineer who strives to build simple, stable, scalable, and resilient...

Location

Salary:

Not provided

Zoolatech

Expiration Date

Until further notice

Requirements

NODE JS - Javascript, Type Script
Familiarity with Kubernetes
Familiarity with relational databases
Experience with RESTful architecture and micro-services
Experience with cloud-based services such as AWS
Familiarity with Continuous Integration and Continuous Delivery methodologies and tooling
Excellent communication skills (verbal and written)
4+ years of professional experience in practice area

Job Responsibility

Leads multidimensional projects that involve multiple teams
Leads and works with other software engineers on design best practices and conducts code reviews
Resolves complex engineering problems, collaborating with others
Facilitates cross functional troubleshooting, root cause analysis and engages others when needed
Responsible for creating, evaluating, and contributing to feature detailed designs
Design, develop, and implement software utilizing an agile project cycle
Mentor others on the team and raise the bar for technical knowledge across a wide spectrum
Demonstrates thorough knowledge of information technology concepts issues, trends and best practices as they relate to Cloud technologies and system integrations
Apply and share knowledge of security coding practices and secure system fundamentals

What we offer

Paid Vacation
Sick Days
Floating Holidays
Sport/Insurance Compensation
English Classes
Charity
Training Compensation

Staff Software Development Engineer Backend Node.js

We’re building a world of health around every individual — shaping a more connec...

Location

United States

Salary:

118450.00 - 260590.00 USD / Year

CVS Health

Expiration Date

July 03, 2026

Requirements

7+ years of software engineering experience, including significant backend and platform engineering experience in production environments
Strong expertise in TypeScript and modern Node.js backend development
Proven experience designing and operating backend APIs at scale, especially GraphQL-based platforms
Strong experience with backend frameworks such as Fastify, Express, NestJS, or similar, with an ability to make sound architectural tradeoffs
Direct experience with API gateway technologies such as Kong, Apigee, or Azure API Management
Deep experience with PostgreSQL or other relational databases, including schema design, migrations, performance tuning, and data modeling
Hands-on experience with distributed workflows, asynchronous orchestration, or job-processing systems such as Temporal or similar platforms
Strong understanding of authentication and authorization patterns, including OAuth, OIDC, JWTs, and service-to-service security
Experience implementing observability practices including tracing, structured logging, metrics, and production diagnostics
Experience working in containerized environments and modern backend delivery workflows using Docker and CI/CD pipelines

Job Responsibility

Lead backend architecture across core services, shared platform packages, and workflow-driven backend systems
Own the design and evolution of GraphQL APIs, service boundaries, data contracts, and typed backend integrations
Drive development of backend services built with TypeScript, Node.js, Fastify, PostgreSQL, and workflow orchestration technologies
Shape and improve systems that provision, configure, and integrate with API gateways and related platform infrastructure
Define patterns for service reliability, observability, security, authentication, and operational readiness
Guide schema design, data access strategy, migrations, and long-term maintainability of relational data models
Improve engineering standards through code review, technical design reviews, testing strategy, and mentoring
Partner closely with frontend engineers, product teams, and platform stakeholders to ensure backend capabilities support the full product workflow
Identify architectural risks, reduce knowledge silos, and create scalable patterns for a growing engineering organization
Contribute to a culture of strong ownership, high-quality delivery, and pragmatic technical leadership

What we offer

Medical, dental, and vision coverage
Paid time off
Retirement savings options
Wellness programs
Bonus, commission or short-term incentive program
Equity award program

Fulltime

Senior Backend Engineer - Node.js

We are looking for a Backend Engineer to support the development and maintenance...

Location

India

Salary:

Not provided

Tech Holding

Expiration Date

Until further notice

Requirements

Up to 4 years of professional backend development experience
Proficiency with TypeScript and Node.js
Experience building APIs (REST, GraphQL, RPC) with Fastify, Apollo, Express, or similar frameworks
Familiarity with Elastic search or other search/indexing technologies
Basic understanding of caching concepts (Redis, Memcached, or similar)
Experience with Git and collaborative development workflows

Job Responsibility

Document, develop and maintain backend services using TypeScript and Fastify
Build and update APIs consumed by frontend and mobile applications
Assist with Elasticsearch query development and optimization
Work with Redis / Valkey for caching implementations
Write unit and integration tests to ensure service reliability
Participate in code reviews and follow established coding standards

Fulltime

Senior Backend Engineer (Node.js)

We are building a high-performance, real-time platform from the ground up, and w...

Location

India , Raipur

Salary:

Not provided

Arosys

Expiration Date

Until further notice

Requirements

Node.js Expertise: 2 to 5 years of professional backend experience with a deep understanding of the Node.js event loop and non-blocking I/O
Modern Tooling: Proficiency with TypeScript, NestJS (or Express), and modern ORMs
Real-time & AI Ready: Experience with WebSockets (Socket.io) or integrating AI model APIs is a huge plus
Startup Mindset: You enjoy the “0 to 1” phase. You prefer building clean, reusable systems over patching old ones
On-Site Collaboration: You value the energy of a startup office and the speed of in-person brainstorming and whiteboarding

Job Responsibility

Architect the Core: Design and implement robust, scalable server-side logic using modern Node.js (v22/24+)
API First: Build and maintain high-performance RESTful and/or GraphQL APIs that serve as the backbone for our Angular frontend
Data Mastery: Own the database schema design (SQL/NoSQL) and optimize queries for maximum speed and reliability
Security & Scalability: Implement industry-standard security protocols (OAuth2, JWT) and ensure the system can handle rapid user growth
Lead the Way: Mentor future hires, establish CI/CD pipelines, and contribute to the strategic technical roadmap as we scale toward managerial tiers

What we offer

Cutting-Edge Stack: No legacy baggage. We use the latest stable versions of Node.js and modern infrastructure
Leadership Path: We are looking for a future Head of Engineering. You’ll be groomed for leadership roles as the team grows
Direct Impact: Your decisions today will define our architecture for years to come

Fulltime

Backend Engineer - Node.js / Typescript

As a Backend Engineer at Cozycozy, you will be the expert driving the expansion ...

Location

France , Paris

Salary:

Not provided

cozycozy

Expiration Date

Until further notice

Requirements

3+ years of experience in back-end engineering, with a strong focus on high-throughput data integration systems
Deep professional experience with Node.js and TypeScript in a production environment
A good working knowledge of both NoSQL (MongoDB) and relational (PostgreSQL) databases, including schema design and performance tuning
A solid understanding and practical application of RxJS or similar libraries for managing asynchronous data flow
A proven track record of developing robust integrations using various techniques: REST/SOAP APIs
Scraping (e.g., using Puppeteer, Cheerio, or similar tools)
An analytical mindset with a strong ability to debug complex, distributed systems and resolve data synchronization issues
Ability to manage projects end-to-end, prioritize tasks independently, and drive integration projects to completion
Excellent communication skills (English is required) and experience working effectively with cross-functional, international teams
A passion for the travel industry and a desire to contribute to a rapidly growing, international product

Job Responsibility

Design and develop integrations: Lead the full development lifecycle for integrating new accommodation partners using Node.js/TypeScript
Data Collection & Extraction: Develop resilient and scalable code to fetch both static partner information and real-time price & availability data, utilizing partner APIs and advanced web scraping techniques
Quality Assurance: Implement comprehensive testing (unit, integration) and monitoring to ensure the accuracy, reliability, and low latency of all acquired data
Data Processing Pipeline: Own the maintenance and optimization of back-end services responsible for data ingestion, transformation, and processing
Database Management: Work hands-on with our data stores, primarily MongoDB and PostgreSQL, optimizing data models and query performance for integration-related services
Reactive Programming: Leverage RxJS effectively within the Node.js environment to manage asynchronous data streams and ensure efficient, non-blocking data flow
Mentorship: Actively mentoring junior engineers, providing code reviews, technical guidance, and helping them grow their expertise in large-scale integration and back-end development
Process Improvement: Drive initiatives to standardize integration frameworks, improve deployment pipelines, and enhance the overall efficiency of our partner onboarding process
Technical Consultation: Collaborate with Product Managers and Business Development teams to assess the technical feasibility and scope of new partnership opportunities

What we offer

Competitive salary, stock options, Alan health insurance, and Swile card
Unlimited coffee, tea, snacks, and drinks

Backend Node.js Engineer

We are looking for a Backend Node.js Engineer (m/f/d) to be part of the developm...

Location

Germany , Hamburg or Berlin

Salary:

60000.00 - 70000.00 EUR / Year

About You

Expiration Date

Until further notice

Requirements

3+ years working experience
2+ years experience in building scalable APIs (e.g. using Node.js, Python or Go)
Practical & recent experience with a typed programming language (e.g. TypeScript)
Solid know how in working with SQL or No-SQL databases
You write well-structured, efficient and maintainable code and actively keep the quality of the code base in check
You have excellent analytical and problem-solving skills
You are used to working in an English-speaking and agile environment
You raise the bar of the software you work on
You enjoy investigating the ‘why’ behind specific search outcomes and translating those findings into actionable technical enhancements

Job Responsibility

Develop a cutting-edge Search Engine utilizing Node.js with TypeScript
Manage extensive data volumes efficiently, employing Google BigQuery and integrating seamlessly with Business Intelligence systems and our data platform
Build and enhance high-traffic APIs, ensuring minimal latencies
Collaborate closely with seasoned developers, product managers, QA experts, and analysts to enhance current functionalities and launch novel features
Encouragement for innovative ideas and creations, a flat organizational structure, and rapid decision-making processes ensure ample room for contribution and growth
Draft architectural decisions together with our Tech Lead and explore new technologies

What we offer

Hybrid working
Fresh fruit every day
Sports courses
Free access to code.talks
Exclusive employee discounts
Free drinks
Language courses
Laracast account for free
Company parties
Help in the relocation process

Fulltime

Senior Backend Node.js Engineer

We are looking for a Senior Backend Node.js Engineer (m/f/d) to be part of the d...

Location

Germany , Hamburg or Berlin

Salary:

70000.00 - 85000.00 EUR / Year

About You

Expiration Date

Until further notice

Requirements

At least 5 years of experience working with Node.js
Recent and practical experience with TypeScript
Proficiency in working with SQL or No-SQL databases
Write well-structured, efficient, and maintainable code, and actively maintain the quality of the codebase
Excellent analytical and problem-solving skills
Used to working in an English-speaking and agile environment
Raise the quality of the software you work on

Job Responsibility

Develop smart BI solutions utilizing Node.js with TypeScript
Manage extensive data volumes efficiently, employing Google BigQuery and integrating seamlessly with Business Intelligence systems
Build and enhance high-traffic APIs, ensuring minimal latencies
Work closely with experienced developers, product managers, data scientists, and analysts to improve existing features and introduce new ones
Encourage innovative ideas and creations
Draft architectural decisions together with our Tech Lead and explore new technologies

What we offer

Hybrid working
Fresh fruit every day
Sports courses
Free access to code.talks
Exclusive employee discounts
Free drinks
Language courses
Laracast account for free
Company parties
Help in the relocation process

Fulltime

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Backend Engineer (Node.js)

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