Senior Systems Engineer (Greenfield, Ultra High Performance)

Our client is a highly technical team building a greenfield, performance‑critical systems platform from first principles. This is a senior‑level role for engineers who have deep experience designing and optimising latency‑sensitive, high‑throughput production systems and enjoy operating close to the metal.

The environment is fast‑moving and adversarial, with a heavy emphasis on correctness, performance, and clear engineering thinking. Engineers are expected to take ownership of substantial parts of the system end‑to‑end.

What you'll be working on:

• Designing and building ultra‑high‑performance systems where latency and throughput matter
• Optimising software with a strong understanding of hardware interaction
• Owning critical components across the full lifecycle: design, implementation, optimisation, and production
• Solving novel, non‑obvious systems problems in a greenfield environment
• Working in a setting with real ambiguity and technical autonomy

What they're looking for:

• 5+ years' experience building and optimising high‑performance production systems
• Strong background in systems engineering, not general application development
• Experience with low‑latency, high‑throughput, or performance‑critical software
• Proficiency in Rust, or strong C/C++ experience with willingness to switch
• Sharp problem‑solving ability and comfort reasoning through complex, unstructured problems

Backgrounds that tend to fit well:

• Engineers from top HFT, trading, or market‑making firms
• Engineers from large‑scale infrastructure teams at top technology companies
• PhDs or candidates with evidence of deep technical work (research, simulations, compilers, systems)
• Competitive programmers or engineers with substantial low‑level side projects

Why this role:

• Greenfield build with meaningful technical ownership
• Work on genuinely hard performance‑driven systems problems
• Small, highly technical team with high engineering standards
• Higher upside: Base salary + guaranteed cash bonus + equity

If you're driven by deep systems work, performance optimisation, and building critical infrastructure from scratch, this is a rare opportunity to do so.

Apply Now!