Senior R&D Engineer
Offer summary

(Summary generated by AI based on the full job description)

The project involves building backend and infrastructure tools for an advanced networking and VPN platform. Technologies include Python, Rust, Go and knowledge of Linux, TCP/IP, TLS, and routing. Main responsibilities include service design, infrastructure automation, and Linux system optimization. The role demands delivering production-grade software with ownership and architectural impact. Benefits include private healthcare and flexible working hours.

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Senior R&D Engineer

Company: BRAVER IT SPÓŁKA AKCYJNA

from: 17 July 2026
to: 16 August 2026
33 000 - 45 000net (+ VAT)/ mth.B2B contract (full-time)
Offer parameters
level:senior • expert
working mode:remote
location:Kraków, Lesser Poland
Kraków, Lesser Poland

Requirements

Your responsibilities

  • Design and develop backend services and infrastructure tooling.
  • Build and integrate networking and VPN technologies into the platform.
  • Develop scalable, production-grade software using Python, Rust, Go, or similar languages.
  • Improve deployment workflows, provisioning processes, and infrastructure automation.
  • Optimize Linux-based environments for performance, reliability, and security.
  • Research emerging technologies and prototype new technical solutions.
  • Collaborate with engineers to shape architecture, engineering standards, and best practices.
  • Leverage AI-assisted development tools to improve productivity and code quality.

Our requirements

  • Strong professional experience with Python, Rust, Go, or a comparable systems programming language.
  • Solid understanding of Linux systems and server environments.
  • Strong networking fundamentals, including TCP/IP, DNS, TLS, and routing.
  • Experience working with VPN technologies or tunneling protocols such as WireGuard, OpenVPN, or IPsec.
  • Hands-on experience building internal tools, backend services, or infrastructure automation.
  • A proactive, ownership-driven mindset with the ability to work independently.
  • Proven experience delivering software used in production.

Optional

  • Knowledge of cryptography, PKI, or TLS internals.
  • Experience with Infrastructure as Code tools such as Terraform or Ansible.
  • Familiarity with monitoring and observability platforms (Prometheus, Grafana, etc.).
  • Experience customizing Linux distributions or building server images.
  • Contributions to open-source projects related to infrastructure, networking, or security.

About the Role

We're looking for a Senior R&D Engineer to join a small, experienced engineering team. You'll work on designing and building new backend and infrastructure solutions, taking ownership of technical challenges from concept to production in a highly autonomous environment.
Company

What we offer

  • Private healthcare
  • Multisport
  • Life insurance
  • Opportunity to build a greenfield distributed platform from scratch
  • Real influence on architecture and technical direction
  • Work in a high-tech manufacturing domain
  • Collaboration with experienced system engineers
  • Collaborative work environment with cross-functional teams

Benefits

  • remote work opportunities
  • flexible working time

BRAVER IT SPÓŁKA AKCYJNA

As Venture Building, we create profitable technology companies from scratch. We collaborate with partners who share similar aspirations and are open to leveraging the potential of their networks, cultivated over years. We regularly launch new projects founded on long-term, amicable relationships with our associates.
Senior R&D Engineer
33k–45k zł / mth. (B2B)
I apply to:
BRAVER IT SPÓŁKA AKCYJNA
Kraków, Lesser Poland

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