Software Engineer (Rust)

hyperexponentialRemote - London, London, United Kingdom+ Equity5d ago

Upload My Resume

Drop here or click to browse · PDF, DOCX, TXT

Apply in One Click

Requirements

Built and shipped backend systems in a polyglot production environment, working across languages such as Rust, Python, or C/C++, and choosing the right tool for the problem.
Either used Rust in production systems, or demonstrated strong systems experience in C/C++ or Python with clear evidence of learning and adopting new languages quickly (you will be upskilled in Rust if you're not familiar).
Delivered backend features where correctness, performance, and resource efficiency were critical, and improved systems based on real production behaviour.
Applied solid systems thinking around execution, concurrency, and memory or resource management in real-world backend services.
Designed and implemented effective testing and observability that made complex backend behaviour understandable, debuggable, and safe to evolve.
Owned work end-to-end from design through rollout, monitoring, and iteration, collaborating closely with peers and raising risks early.
You’re unlikely to thrive here if
You prefer highly predictable work and feel uncomfortable operating in ambiguous, evolving problem spaces.
You optimise for shipping quickly at the expense of correctness, maintainability, or long-term system health.
You avoid ownership of outcomes beyond your immediate code changes.

Designing and delivering backend features in the Kernel execution engine that improve correctness, performance, and reliability for customer model runs at scale.
Strengthening a clean, modular Kernel architecture that is easy to understand, test, and safely evolve over time.
Building automated tests and observability for complex execution scenarios, enabling faster detection, diagnosis, and resolution of production issues.
Partnering with adjacent engineering teams to shape Kernel behaviour and interfaces, providing clear technical input and following through to delivery.
Owning work from design through rollout and monitoring, balancing immediate product needs with long-term system sustainability.
Demonstrating hx values by proactively identifying risks, collaborating constructively, and taking full accountability in a critical core-platform area.

At hx, we’re committed to salary transparency. You’ll always have clarity on pay early in the process - our Talent Partner will share details with you during initial conversations - and we’re working towards publishing salary information for all roles globally.
Because we’re building at the intersection of technology/SaaS and insurance, our roles don’t always map neatly onto traditional benchmarks. Our approach is to design compensation that’s competitive in the market, fair across teams, and aligned with the impact our people make.
Equity: We offer equity across all roles at hx, making it a significant component of total compensation. Your talent partner will be able to share more details about this.
£5,000 training and conference budget for individual and group development.
25 days of holiday plus 8 bank holidays (33 days total).
Company pension scheme via Penfold.
Mental health support and therapy via Spectrum.life.
Individual wellbeing allowance via Juno.
Private healthcare insurance through AXA.
Income protection and Life Insurance.
Cycle to Work Scheme
Top-spec equipment (laptop, screens, adjustable desks, etc.).
Regular remote and in-person hackathons, lunch and learns, socials, and game nights.
Team breakfasts and lunches, snacks, drinks fridge, and a fun office at The Ministry.
Exceptional opportunities for personal development and growth as we build something remarkable together.