Senior Backend Engineer (Node.js)

Oxylabs

Vilnius hybrid Until 8/21/2026 First posted April 13, 2026 Last posted April 13, 2026

Job description

We’re a team of 500+ professionals who develop cutting-edge proxy and web data scraping solutions for thousands of the world’s best known businesses, including Fortune 500 companies.

What’s in store for you:

You’ll be solving complex challenges and maintaining our own infrastructure with 60PB+ monthly data traffic. Here are its scale and maturity in numbers:

- 6PB+ Ceph storage

- 60PB+ monthly data traffic through our systems

- 300k+ service requests/sec processed

- 500k+ Kafka messages/sec streamed

In this role, you’ll:

Lead the design and delivery of scalable, high-performance systems and web scraping solutions.
Elevate coding standards and team expertise through mentorship and thorough code reviews.
Take full responsibility for tasks from discovery to delivery within Agile workflows.
Troubleshoot complex issues while contributing to product research and new idea development.

Your skills & experience:

Deep expertise in Node.js with a proven track record of designing high-traffic, scalable solutions.
Experience leading technical discussions, guiding team members, and driving best practices.
Strong understanding of distributed systems, microservices, and performance optimization.
Proficient in automated testing frameworks (Unit and E2E) and writing testable code.
Proactive, solution-oriented mindset with excellent written and spoken English and Lithuanian.

Nice to have:

Familiarity with React/JS to understand how backend logic is visualized.

Skilled in using Docker and Kubernetes for deployment and orchestration.

Experience leading R&D initiatives and/or introducing new technologies/AI tools.

Salary & Benefits:

Gross salary: from 5800 EUR/month. Keep in mind that we are open to discussing a different salary based on your skills and experience.

Growth & Learning: 40+ internal learning options, external conferences, mentorship, and year-round knowledge-sharing.

Health & Well-being: Private health insurance, psychotherapy, on-site well-being consultants, 24/7 gym access, and a wellness app.

Celebration & Community: Team events, an overseas workation, quarterly team-building budgets, and plenty of ways to mark milestones together.

Plus bonus vacation days, paid life-moment days off, barista coffee, and all the tools you need. See the full list of benefits here: https://career.oxylabs.io/blog/our-work-benefits/.

Up for the challenge? Let’s talk!

About this role

Summary

Design and maintain high-performance scalable web scraping systems for large data traffic

Job title

Senior Backend Engineer (Node.js)

Experience level

senior level

Industry

software

Location requirements

Vilnius, onsite work required; remote not specified

Salary

$6k+

Management role

Skills & keywords

Required skills

Node.jsdistributed systemsmicroservicesautomated testing

Preferred skills

React/JSDockerKubernetesR&D

Specializations

Node.jsdistributed systemsmicroservicesperformance optimization

Locations

Structured locations inferred from the posting.

Vilnius, Vilnius City Municipality, Lithuania

On-site City