Staff Software Engineer

Job Description

The day-to-day

• Lead the review of complex code contributions, design proposals, and technical RFCs from colleagues. At Helsing we strongly believe that unblocking others and mentoring is the highest-leverage work you can do.
• Architect, propose, and implement major new features, capabilities, algorithms, infrastructure, or full products across our stack. We expect our engineers to look beyond their immediate team, identify systemic opportunities, and champion the solutions.
• Act as a key translator between engineering and the broader business. You will regularly interface with product managers, programme leads, and customers to translate deep technical designs and constraints into clear, actionable insights for non-technical stakeholders who depend on our technologies.
• Actively mentor engineers, find mentees, and help drive and scale our technical interviewing pipeline. You will be a key driver in fostering, growing, and scaling the engineering organisation.
• Share your extensive experience and technical know-how with other Helsingers. We host tech talks, run “let’s learn together” groups, and host topical office hours (e.g., on Rust) to help the entire engineering team get better with time.
• Maintain and evolve our existing software stack, partnering with internal and external stakeholders to diagnose complex system issues, optimise operational reliability and performance, and systematically address technical debt. Our stack is a mix of Rust and Python, with Python mainly living in the ML-heavy sections.
• Design and develop robust test architectures and benchmarks, both at the micro and macro level. We operate in a domain where robustness is of the utmost importance, and building highly reliable, performance-tested systems is key to achieving that.
• Present and celebrate your work at our weekly demo sessions. We host demo sessions that allow early feedback, celebration of progress, and a better shared understanding of everything that goes on at Helsing.
  

You should apply if you

• Have a proven track record of writing highly legible, maintainable, and performance-optimised systems code.
• Are a systems-level thinker capable of designing for the long term. You can ensure that a complex collection of independent, heterogeneous systems (including those outside your direct control) successfully integrate and function reliably end-to-end.
• Communicate well in English, both verbally and in writing, with the ability to articulate complex architectural decisions to both technical and non-technical stakeholders.
• Thrive in a collaborative, low-ego environment, with extensive experience running pair programming and peer code reviews.
• Are highly comfortable working asynchronously (writing robust PRs, leading design RFCs, and having discussions by email).
• Have seasoned, senior-to-staff level backend development experience, with expert-level mastery in a systems language like Rust, Java, Go, or C++.
• Are a natural multiplier, striving to constantly improve yourself, your peers, and the engineering culture around you.
• Feel like ethical considerations are an inherent part of software engineering.
  

Note: We operate at an intersection where women, as well as other minority groups, are systematically under-represented. We encourage you to apply even if you don’t meet all the listed qualifications; ability and impact cannot be summarised in a few bullet points.

Nice to have

• Production-grade Rust and Python specifically.
• Container-based and cloud-native application architectures (e.g., Docker, Azure, AWS).
• Metrics and observability tooling (e.g., Prometheus, Grafana, ELK).
• SQL and high-throughput streaming database systems.
• Low-level routing protocols (e.g., IGP, BGP).
• Cryptographic protocols (e.g., Signal, WireGuard).
• Hardware interfaces (e.g., Arduino).
• Robotics (e.g., control systems).
• Production ML systems and model deployment.

Are you interested in this position?
Apply by clicking on the “Apply Now” button below!
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