Software Engineer (Go)

Full Time

Vilnius/Kaunas

OxySERPS

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

Join us at a stage where your work actually moves the needle. The product is still young, the customer base is growing fast, and there’s a lot of space to shape both the tech and the product itself. You won’t be just closing tickets – you’ll be helping to decide what we build, how we build it, and how it scales.

You’ll work with a modern stack (Go, Kubernetes, MySQL, Kafka, Redis, monitoring, headless browsers) and real-world problems around scraping, browser automation, stealth techniques and AI agents. If you like digging deep into how things actually work – from infrastructure to browser internals – you’ll feel at home.

It’s a small, hands-on team where ownership is real: you can talk directly to customers, ship features end-to-end, and see your impact quickly. The flip side: the product is growing and changing, so we’re looking for someone who’s flexible, curious, and wants to grow together with it – not someone who needs a fixed roadmap and golden processes. If you enjoy building, experimenting and improving both the product and yourself, this is a good place to do it.

Your day-to-day:

Develop systems and solutions that can scale easily as the product and customer base grows.

Own the full development cycle – from research and prototyping to deployment and production.

Deliver and review technical design, code, and documentation.

Take part in technical decision-making in an early-stage, fast‑growing product.

Work directly with customers when needed: help investigate and solve their issues, and bring ideas back to the team.

Look for and suggest product improvements based on real customer problems and your own insights.

Actively contribute to growing and shaping the product from a fairly early stage – understand the product, its problems and opportunities, not just the technical side.

Your skills & experience:

Solid hands-on experience with Go.

Production experience with Kubernetes – you should understand how to deploy and maintain services.

A good grasp of the underlying infrastructure, not just how to write application code.

A genuine desire to work with an early-stage, growing product and take ownership beyond just coding tasks.

Flexibility – you are comfortable with the fact that in a fast-growing product, priorities and direction can change quickly.

Good communication and a collaborative mindset for a small, hybrid team.

NICE TO HAVE REQUIREMENTS:

Experience with headless browsers (e.g., Playwright, Puppeteer) and web scraping/automation.

A deep understanding of the scraping niche, including stealth techniques and advanced headless browser principles.

Familiarity with AI agents and ideas on how they could leverage headless browsers.

Practical experience with our stack: MySQL, Kafka, Redis, Grafana, Sentry, ELK.

Our Salary & Work Benefits Package:

Gross salary: 5000 - 7000 EUR/month. This position provides a fixed base only. Keep in mind that we are open to discuss a different salary based on your skills and competencies.

To support your professional growth and make you feel taken care of, we’ve put together an expansive benefit package. It covers learning, well-being, celebration, and much more — learn all about it here.

Up for the challenge? Let’s talk!

You will be talking to:

Martynas Manikas

Recruiter

Interested?

Let's get in touch!

Apply now

Taking Care of You

We’ve put together a benefit package to make you feel taken care of and comfortable — so you can focus on growing as a professional and achieving wins. Check out the complete list here.

Learning Resources

Vast internal & external learning resources
Guilds, communities & 500+ professionals by your side
Tesonet network & knowledge sharing

Celebration

Yearly workation
Year-round internal & Tesonet community events
Team building budget

Comfort

Cyber City office perks
Hybrid work (3 office days/ 2 WFH) & WFA options
Latest tools, gadgets & tech stack
Extra days off
Special Tesonet product deals

Well-being

Private health insurance
24/7 gym
Physical well-being specialists
Psychologist/psychotherapist sessions
Inclusive family-related time-off policy

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