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Bright Data

Senior Backend JavaScript Developer

Bright Data Netanya, Center District, Israel

Software Development · 201-500 employees

Sep 03
javascript Senior (5-10 yrs) Full-time Israel
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About the role

You will take end-to-end ownership of feature development, from design to production rollout, within a microservices-based SaaS environment. You will also participate in system architecture planning and ensure the scalability and reliability of backend services.

What they look for

Node.js JavaScript MongoDB Kubernetes Redis Redis Streams Microservices SaaS System Design LangChain LangGraph LLM API Development Scalability Reliability Data Modeling

Requirements

The role requires 5+ years of software engineering experience, with at least 3 years specifically in backend JavaScript and Node.js development. Candidates must have proven experience with microservices, MongoDB, Redis, and modern LLM-powered workflows using LangChain.

Full description

We’re looking for exceptional and experienced Senior Backend JavaScript Developers to join our DCA team, with deep expertise in Node.js and building production-grade backend services.

In this role, you will take end-to-end ownership of product and feature development, building SaaS applications and services in a microservices architecture, using modern technologies in a fast-paced and professional environment.

Tech Stack:

Node.js, JavaScript, MongoDB, Kubernetes, Redis (including Redis Streams), Snowflake

(plus additional relational/NoSQL data stores as needed)

Responsibilities

  • End-to-end feature development, from design and implementation to production rollout and ongoing improvements
  • Build and operate backend services with a strong focus on scalability, reliability, and performance in a microservices environment
  • Participate in system design and architecture planning, and contribute to technical decisions across the team
  • Work with asynchronous, message-driven components using Redis Streams, including debugging, tuning, and ensuring resilient processing
  • Write high-quality, maintainable code with appropriate test coverage; participate actively in code reviews
  • Collaborate effectively with teammates and cross-functional stakeholders to deliver high-impact outcomes
  • Continuously learn, adapt, and stay up-to-date with best practices and evolving technologies

Requirements

  • 5+ years of hands-on software engineering experience, including 3+ years focused on backend JavaScript / Node.js development
  • Proven experience building and maintaining SaaS applications and/or production backend services
  • Experience working in a microservices architecture (service boundaries, APIs, reliability patterns)
  • Experience with LangChain and LangGraph, including building and orchestrating LLM-powered workflows
  • Hands-on experience with MongoDB and Redis (including practical experience with Redis Streams or similar pub/sub/stream processing)
  • Familiarity with Kubernetes and containerized deployments
  • Good understanding of system design fundamentals: APIs, data modeling, performance, scalability, and reliability
  • Fast learner, able to work both independently and as a team player
  • Proficiency in English, with strong written and verbal communication skills

Nice to Have:

  • Experience with Snowflake and data pipelines/analytics
  • Experience with AWS and cloud-based production environments
  • Experience with relational databases (e.g., PostgreSQL/MySQL) and additional NoSQL technologies
  • Experience with observability tooling (logging/metrics/tracing) and incident response

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