Realtime Analytics and Controls Developer
XTX Markets is a London-headquartered algorithmic trading and electronic market-making firm using machine learning to forecast prices across equities, fixed income, currencies, commodities and crypto, then trading on venues and providing differentiated liquidity to institutional clients.
Maintainer signals as of 9/25/2026
About XTX Markets
XTX Markets operates as a quantitative electronic market maker and institutional liquidity provider. Its technology produces price forecasts for more than 53,000 financial instruments, which it uses to trade on exchanges and alternative venues and provide customised, low-market-impact liquidity. The group also operates XTX Ventures and open-sources technology such as TernFS.
Skills
Candidate Availability
Required and preferred rules are kept separate and reflect the wording in the original posting.
About the Role
You will build and maintain mission-control software for real-time visibility into trading systems and trading controls. You will work with internal users to understand workflows, develop reliable high-throughput data systems, maintain trading metrics, present data clearly with frontend developers, and participate in an on-call rota.
Requirements
- Communicate effectively with technical stakeholders and prioritize requirements according to business needs
- Demonstrate algorithmic literacy and write efficient code
- Understand distributed systems, including consistency and delays
- Have at least 5 years of professional Java or C++ coding experience
- Be willing to learn Kotlin
- Write automated tests
- Reduce complexity
- Care about correctness and reliability
- Take proactive responsibility
Responsibilities
- Communicate regularly with internal users about their needs and ideas
- Understand the workflows of teams involved in trading
- Design, implement, and maintain data-ingestion mechanisms for large trading-system data volumes
- Develop internal frameworks for data processing and presentation
- Build in-memory query engines
- Present data clearly, usefully, and accurately with frontend developers
- Maintain trading-metric calculations
- Build software that runs reliably 24/7
- Participate in the on-call rota
Benefits
- Onsite gym, sauna, and fitness classes at no charge
- Extensive medical benefits, including an onsite doctor and therapist at no charge
- Daily breakfast and lunch
- Caregiver support, including emergency dependent care
- 25 days of paid holiday plus statutory holidays and paid sick days
- Generous pension contributions
