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Senior Backend Engineer (Node.js)

oxylabs
Companyoxylabs
CategoryEngineering
LocationVilnius
RemoteOn-site (inferred)
EmploymentNot stated
LevelSenior
SalaryEUR 6k
Posted3 Aug 2026
Last verified12 Aug 2026
SourceThe employer's own careers page (company_site)
Applications are handled by the employer, not by us.Apply on the employer's site →
Description
What you will do About Us 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. What we offer 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/ Requirements 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.