Sri Lanka Remote (Country)

Onyx Capital Group is hiring a Senior Rust Software Engineer

About the Role

As a Senior Rust Software Engineer, you'll play a pivotal role in shaping a new engineering hub in Sri Lanka, serving as a founding member responsible for designing and delivering mission-critical trading infrastructure. You’ll own systems from concept through production, ensuring they meet the demands of high-throughput, low-latency environments.

What You’ll Do

  • Lead the end-to-end development of complex, high-performance systems with full ownership from design to deployment
  • Collaborate directly with trading teams, operating on the trading floor to deliver immediate, measurable improvements
  • Apply Test-Driven Development to build robust, reliable software from the start
  • Integrate observability deeply into system design to ensure clarity and control in production
  • Challenge technical decisions when necessary, upholding high standards without oversight
  • Champion software craftsmanship as a core driver of competitive advantage

Who You Are

You’re a seasoned engineer with deep experience in systems programming using Rust. You take pride in writing clean, maintainable code and insist on strong engineering practices. You thrive in environments where ownership and accountability are expected, and where your work directly influences business outcomes.

You’re comfortable working in a lean, senior-led team with minimal bureaucracy, where feedback is direct and impact is immediate. You value direct access to business stakeholders and prefer solving real-world problems over navigating organizational layers.

Technology & Environment

The stack centers on Rust, built with TDD discipline and a strong focus on observability. Systems are designed for performance and reliability, serving global market participants. You’ll operate in a technology-first market-making environment where code decisions directly affect trading outcomes.

Why This Role Matters

  • Be a foundational engineer in a new hub with long-term growth potential
  • Work without abstraction layers—your code ships fast and makes an instant impact
  • Join a culture that values technical integrity, ownership, and direct contribution
  • Be part of a small, senior team where every decision you make matters
Required Skills
RustTDDTest-Driven DevelopmentObservabilityHigh-Performance SystemsLow-Latency SystemsSoftware DesignSystem Architecture Rustsystems programmingTest-Driven Developmentobservabilityhigh-performance systemssoftware craftsmanshipend-to-end ownershipcomplex systems design
Want to work from Thailand?

Join a remote network built for tech talent

Iglu gives you real employment in Southeast Asia — visa, work permit, and projects included. Pick what you work on, earn performance-based pay, and live where you want.

Legal employment in Thailand & Vietnam
Choose your own projects
Performance-based revenue sharing
Relocation support available
Join Iglu
200+ professionals worldwide
About company
Onyx Capital Group

Onyx Capital Group is the world's #1 liquidity provider for energy derivatives, leveraging its position to provide market access for institutions, traders, and individual consumers. The company operates as a market maker, aiming to make energy markets open and accessible to everyone.

Through its businesses — Onyx Commodities, Flux, and Axis — the group offers liquidity-as-a-service, live market data, trading technology, and targeted education. It specializes in crude oil, light ends, distillates, fuel oil, NGLs, metals, and power & gas markets, delivering transparent pricing and cutting-edge technology.

Flux provides a state-of-the-art platform (Flux Terminal) with live liquidity, data, news, and dynamic reports, while Axis, founded in 2024 and based in Dubai, enhances global liquidity dominance with elite trading talent and advanced technology.

All jobs at Onyx Capital Group Visit website
Job Details
Category backend
Posted a month ago