Senior Software Engineer

We are looking for a Senior Software Engineer to join a small team of IP networking and software architecture experts, building a new network orchestrator for a major ISP on top of the open-source StratoWeave platform. This role is suited for a strong developer who writes clean, well-structured, well-tested code, cares deeply about type safety and good abstractions, and is comfortable picking up a new language to solve a hard problem the right way. What matters most is engineering quality.

About the Project:
StratoWeave is an early-stage, open-source platform for network orchestration and observability, positioned as an alternative to the expensive commercial tooling that dominates the space today. It translates high-level service requests into precise configuration across multi-vendor networks, with compile-time safety and streaming telemetry built in. The platform is written in Acton, a strongly-typed actor language combining ideas from Rust and Python. You will work alongside a small, senior team of network and software experts on a real-world deployment for a major ISP.

Responsibilities:

• Build core components of a StratoWeave-based network orchestrator, including service models, transformation layers, and device adapter configurations;

• Use and extend the platform's YANG data model and gNMI streaming telemetry capabilities to fit the ISP's specific needs;

• Develop vendor-specific device adapter configurations and supporting CLI tooling on top of the StratoWeave platform;

• Work on closed-loop automation features that combine service intent with live network state;

• Collaborate with network engineers to translate service-provider use cases into clean, typed abstractions;

• Write tests, contribute to CI/CD, and help shape engineering practices on the project.

Qualifications:

• Solid professional software development experience, with a clear track record of writing high-quality, maintainable code;

• Strong background in Python;

• Production experience with Rust, or with another strongly-typed language (Go, Java, Kotlin, C#, Scala, TypeScript, C/C++, or similar);

• Solid grasp of software engineering fundamentals: clean abstractions, testing, code review, and design discipline;

• Comfortable with typed languages, functional programming concepts, and actor or message-passing models;

• Experience with DevOps best practices: GitLab or GitHub CI/CD, Docker, Linux, shell scripting;

• Willingness to learn and work primarily in Acton, a strongly-typed actor language combining ideas from Rust and Python (prior experience not required).

Nice to have:

• Experience with network automation tools such as NETCONF/YANG, Cisco NSO, NetCracker, Ansible, Puppet, or Netmiko;

• Hands-on experience with IP networking and Cisco routers (CCNA certification or equivalent knowledge);

• Familiarity with gNMI, NETCONF, or OpenConfig;

• Background in telecom, ISP, or service-provider tooling;

• Experience contributing to open-source projects.

Recruitment Process:

• Initial screening with our recruitment team;

• Technical interview;

• Offer call.

the company Sp. z o.o. is registered in the National Register of Employment Agencies (KRAZ) under number 35420.