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Oxylabs

Posted 20 days ago

Open

Backend Developer (Golang)

VilniusHybridFull-time

AI Summary

Mid-Senior Backend Developer at Oxylabs, building and scaling high-load APIs and microservices in Golang within a containerized Kubernetes environment handling 60PB+ monthly data traffic.

About this role

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

The team waiting for you:

We're scaling the development power of our Supply team, and we're looking for a Mid-Senior Backend Developer who lives and breathes Golang. At Oxylabs, you'll work on APIs and systems that operate at genuinely high loads — hundreds of servers handling hundreds of thousands of requests per second — in a fully containerized environment we've been running on Kubernetes in production for over seven years.

This is an early-stage, fast-growing project where you'll own real problems end to end, influence technical direction, and get your hands on big data every single day. If you value playful communication over corporate BS and get energized by scalability challenges, keep reading.

What you'll do:

  • Design and build systems and solutions that scale effortlessly
  • Write clean, tested, and documented code that delivers real business value
  • Own the entire development cycle — from research and prototyping to deployment
  • Deliver and review technical designs, code, and documentation
  • Contribute to technical decision-making in an early-stage, fast-growing project
  • Create, review, and maintain multiple microservices, optimizing them for performance and stability

Your skills & experiences:

  • Deep knowledge of Golang
  • Some experience with — or genuine interest in — other programming languages
  • Solid understanding of SQL and NoSQL databases: how they work, how to write optimized queries, and how to debug them
  • A firm belief in why automated tests can save the world
  • Experience with (or strong curiosity about) real-time data processing and event streaming
  • Passion for technology and a habit of constantly trying something new
  • Hands-on experience with some of the technologies we use extensively: Docker, Kubernetes, microservices, Kafka, MySQL clusters, GitLab CI, Redis
  • Comfort with ambiguity and rapid change
  • You value playful communication over corporate BS

Nice to have:

  • Experience with DevOps practices (deployment pipelines, automation, etc.)
  • A clue on how web scraping works

Our tech stack:

  • Golang
  • Kafka
  • Redis
  • Kubernetes
  • Microservices GitLab
  • SQL & NoSQL

    • Salary & Benefits:

  • Gross salary: 4000 - 6500 EUR/month. Keep in mind that we are open to discuss a different salary based on your skills and competencies.
  • 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.
    • Up for the challenge? Let’s talk!

    Skills

    Automated TestingCode ReviewDockerEvent StreamingGitLab CIGolangKafkaKubernetesMicroservicesMySQLNoSQLReal-time Data ProcessingRedisSQLTechnical Design

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