Backend Engineer - Node.js / Typescript Job at cozycozy (Paris)

Senior Backend Engineer (AWS, Node.js, TypeScript, PostgreSQL, Real-Time)

We are seeking a Senior Backend Engineer to take ownership of mission-critical b...

Location

Salary:

Not provided

gamdom

Expiration Date

Until further notice

Requirements

Proven experience as a Senior Backend Engineer (or backend-focused fullstack engineer) delivering production systems at scale
Strong expertise in Node.js and Express with TypeScript
Strong proficiency in PostgreSQL, including schema design, migrations, data modeling, and query optimization
Hands-on experience with WebSockets and real-time systems (preferably socket.io)
Solid experience with AWS, including deploying and operating backend services using services such as EC2, ECS/EKS, RDS, S3, CloudWatch, and IAM
Understanding of cloud-native concepts such as scalability, high availability, observability, and security
Strong problem-solving skills and ability to work independently on ambiguous, complex tasks
Solid communication and collaboration skills in a fast-paced, cross-functional environment
Experience with CI/CD pipelines and DevOps practices

Job Responsibility

Backend Engineering: Design, implement, and maintain scalable backend services using Node.js (Express) and TypeScript
System Design: Own technical decisions, service boundaries, API design, and reliability patterns for backend components
Cloud & Infrastructure (AWS): Design, deploy, and operate backend services on AWS, leveraging managed services for scalability, reliability, and security
Database Ownership: Design schemas, write and optimize SQL, and improve PostgreSQL performance (indexes, query plans, migrations)
Real-Time Functionality: Build and operate real-time features using WebSockets (socket.io), ensuring stability under load
Performance and Scalability: Improve throughput and latency, and proactively address bottlenecks across services, infrastructure, and the database
Quality and Testing: Write and maintain unit and integration tests, and raise overall engineering quality
Debugging and Incident Support: Troubleshoot complex production issues across the stack and AWS infrastructure, and implement long-term fixes
Collaboration: Work closely with product owners and engineering teams to deliver high-impact features with predictable execution
Continuous Improvement: Contribute to better tooling, standards, and engineering practices across the backend team

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 TypeScript Engineer

As a Senior Backend TypeScript Engineer, you will design, develop, and maintain ...

Location

Salary:

Not provided

Yopeso

Expiration Date

Until further notice

Requirements

Strong experience in Node.js, TypeScript, and backend frameworks like Express or NestJS
Solid understanding of SQL and experience with RDS/Aurora
Hands-on experience with AWS services (EC2, Lambda, S3, etc.)
Proficient in designing and consuming REST APIs
Experience with Docker and containerized applications
Familiarity with Git version control
Hands-on experience in CI/CD pipelines
Strong problem-solving skills and ability to take ownership of projects
Self-motivated, hungry for challenges, and able to work in a fast-paced environment
Fluent in English (spoken and written)

Job Responsibility

Develop and maintain backend services using Node.js with Express or NestJS frameworks
Design, implement, and optimize SQL databases on RDS/Aurora
Build and maintain RESTful APIs for web and mobile applications
Deploy and manage applications on AWS cloud infrastructure
Containerize applications using Docker and maintain version control with Git
Collaborate with DevOps teams to implement CI/CD pipelines and automated testing
Take ownership of features from conception to deployment and production support
Identify and solve complex backend challenges, ensuring performance, scalability, and security

What we offer

Competitive remuneration
Remote work
24 days off per year and floating days
Private clinic health services Regina Maria Medical Insurance
Flexible benefits through Up multibenefits platform
Referral bonus scheme
Team events, online or at the office
Training and development opportunities with allocated budget
Professional Certifications
Knowledge sharing context