Software Engineer

LT Harper Group; Polska; Remote; PLN 201,000 - 279,000; Full time

Benefits offered by this job

Flexible working hours

Fully remote arrangement

Training budget

Job summary

LT Harper Recruitment Group is seeking a Software Engineer for Traffic Infrastructure (Mid or Senior) for a fully remote role in Poland. You'll design and run the traffic routing platforms that carry global-scale traffic for a global traffic infrastructure provider.

The role emphasizes Go development, distributed systems, and deep networking with Envoy data planes, Go control planes, eBPF, and kernel tuning, across geo-distributed environments. Flexible hours; remote work.

Qualifications

• Proficiency in Go with extensive experience designing and building distributed systems.
• Experience building and managing large-scale, geo-distributed networking software.
• Solid hands-on experience with Envoy Proxy (data plane) architecture alongside a Go control plane.
• Advanced knowledge of network protocols from L3 to L7, network infrastructure and observability.
• Strong understanding of the Linux network stack, practical eBPF experience, and kernel performance tuning.
• At least 5 years of relevant experience for Mid, or 7 years for Senior.

Responsibilities

• Design, build, deploy and optimise large-scale global traffic routing platforms.
• Develop high-performance distributed traffic infrastructure and networking software.
• Build and manage large-scale, geo-distributed systems.
• Lead complex migrations of legacy network systems and codebases in large environments.
• Develop core network routing tools.

Skills

Go

Distributed systems

Envoy Proxy

Linux networking

eBPF

Networking protocols (L3-L7)

Job description

ONLY FOR CANDIDATES BASED IN POLAND

Software Engineer, Traffic Infrastructure (Mid or Senior), Remote

You'll design and run the traffic routing platforms that carry global-scale traffic for a global traffic infrastructure provider. This is deep networking engineering in Go: Envoy data planes, Go control planes, eBPF and kernel-level tuning, on systems distributed across the world.

The essentials

• 18,000 to 25,000 PLN per month, depending on level
• Fully remote
• Hiring at both Mid and Senior level

What you'll actually do

• Design, build, deploy and optimise large-scale global traffic routing platforms
• Develop high-performance distributed traffic infrastructure and networking software
• Build and manage large-scale, geo-distributed systems
• Lead complex migrations of legacy network systems and codebases in large environments
• Develop core network routing tools

What you'll need

• Proficiency in Go, with extensive experience designing and building distributed systems
• Experience building and managing large-scale, geo-distributed networking software
• Solid hands-on experience with Envoy Proxy (data plane) architecture alongside a Go control plane
• Advanced knowledge of network protocols from L3 to L7, network infrastructure and observability
• Strong understanding of the Linux network stack, practical eBPF experience, and hands-on socket and kernel performance tuning
• At least 5 years of relevant experience for Mid, or 7 years for Senior

Nice to have

• Practical Rust, specifically for developing and maintaining Envoy WASM filters
• Working knowledge of C and/or C++ for low-level system integration and debugging

What's in it for you

• Flexible working hours and a fully remote arrangement
• Professional growth through internal training sessions and a training budget
• Structured, hands-on onboarding to get you productive quickly
• A team of engineers who care about the craft
• The ability to move between projects over time