Work on features to increase speed and functionality of trading infrastructure, including new algorithms and exchange integrations.
Play an active role in executing system architecture and roadmap, collaborating with Product Management.
Grow to become an expert in entire trading systems and use deductive reasoning to solve complex problems.
sFOX is a full-service prime dealer that unites liquidity from over 30 exchanges and OTC desks. Founded in 2014, the company is backed by prominent investors and has a rapidly growing team.
Design and architect the algo trading platform with deep knowledge in frontend, backend, databases, and distributed systems.
Write high-quality code and make critical decisions to deliver the best customer experience.
Work with low-level CPU hardware and concurrency for high throughput and availability.
Alpaca is a US-headquartered self-clearing broker-dealer and brokerage infrastructure company. The team is 380+ globally distributed members with a culture of curiosity, empathy, and accountability.
Build Alpaca's algo trading platform to deliver high quality and performance for users.
Design and architect the platform by wearing many hats in a small team, writing tons of code.
Leverage deep knowledge in frontend and backend, databases, distributed systems, and CPU-level hardware for high throughput.
Alpaca is a US-headquartered global leader in agent-first brokerage infrastructure for stocks, ETFs, options, crypto, and more. Our team of 400+ globally distributed members thrives on diversity and collaboration, backed by $400 million in funding from top-tier investors.
Build and scale mission-critical order and execution management infrastructure in Rust.
Design systems balancing low-latency execution, fault tolerance, and correctness across distributed trading workflows.
Translate evolving regulatory and market structure requirements into reliable, testable platform capabilities.
Clear Street is a diversified financial services firm modernizing the brokerage ecosystem with a cloud-native clearing and custody system. Founded in 2018, the company is a small, growing team with a meritocratic culture that champions collaboration.
Build low-latency trading infrastructure on Linux, including pricing engines, connectivity gateways, and market-data systems.
Own the full lifecycle of your code from design to production support, including incident response and continuous improvement.
Work with modern C++20, Go, and cloud-native infrastructure on AWS with microsecond-level latency optimisation.
Reactive Markets is an OTC trading platform that handles over $50 billion in daily trading volumes across FX, Equities, and Cryptocurrency, connecting 40+ of the world's leading liquidity providers. Their engineering team is small, senior, and deeply invested in building cutting-edge, reliable, high-performance systems.
Design and build performance-critical components for a high-frequency trading platform.
Own the full lifecycle from design to production support, including incident response.
Mentor junior engineers and contribute to architectural decisions that shape the platform.
Reactive Markets is the 2026 OTC Trading Platform of the Year, handling over $50 billion in daily trading volumes across FX, Equities, and Cryptocurrency. Our engineering team is small, senior, and deeply invested in building cutting edge, reliable, high-performance systems.
Architect and own end-to-end full-stack surfaces of the marketplace loop, delivering high-performance tools and developer-facing onboarding systems.
Design agent-native user experiences with robust MCP server capabilities, sandboxed test environments, and elegant CLI/SDK generation workflows.
Scale and protect transaction infrastructure by building high-reliability pipelines for identity verification, usage attribution, and multi-party settlement.
Kong Inc. is a leading developer of API and AI connectivity technologies, building the infrastructure that powers the agentic era. Trusted by Fortune 500 and startups alike, Kong's unified platform enables organizations to secure, manage, and monetize intelligence across APIs and AI models.
Own and maintain the Java client library, ensuring robustness and ease of integration.
Design and develop high-performance server applications in C/C++ for low-latency market data.
Optimize codebase for high throughput and implement tools for petabyte-scale data processing.
Databento is the market data platform for modern finance, providing real-time and historical data across futures, options, and equities through a unified API. The company is composed of alumni from top quantitative firms and focuses on performance and reliability with a simple developer experience.
Build and maintain core market data infrastructure in Rust, focusing on ingestion, processing, storage, and serving of high-volume real-time data.
Solve practical problems specific to real-time market data, including cross-exchange pricing differences, data quality, and latency.
Bring real market data or trading systems knowledge into engineering decisions and communicate clearly with the team.
Douro Labs builds Pyth Pro, real-time market data infrastructure distributing institutional-grade price feeds to exchanges and trading firms. The company has a distributed team across the US, South America, Europe, and Asia, with a strong concentration in Europe, and a culture of independent work and growth.
Design and build mission-critical trading systems using Rust and AWS.
Take ownership of high-impact trading infrastructure and set technical direction.
Drive continuous improvement in system performance, reliability, and operability.
Keyrock is a highly-profitable firm specializing in capital markets and trading systems. They operate with a global, fully-remote team and emphasize a fast-paced, collaborative culture.
Monitor live trading systems, triage alerts, and lead incident response across multiple regions and asset classes
Deliver production configuration changes, including FIX session setup, client onboarding, and post-release verification
Build automation, runbooks, and AI-assisted tooling to reduce toil and scale operational knowledge across a distributed team
Reactive Markets is the 2026 OTC Trading Platform of the Year. Their network handles over $50 billion in daily trading volumes across FX, Equities, and Cryptocurrency, connecting 40+ of the world's leading liquidity providers, and their engineering team is small, senior, and deeply invested in building cutting-edge, reliable, high-performance systems.
Design and build core financial systems including trading, ledger, and billing.
Develop systems for transaction processing, reconciliation, and portfolio state management.
Build and scale real-time and batch data pipelines.
Arta leverages AI and digital tools to make financial products accessible to a broader global audience. The company values trust, teamwork, and adaptability.