Source Job

• Design and implement high-performance components in Rust, C++, or Go for the DEX engine and protocol runtime.
• Build low-latency pipelines for order execution, event propagation, and state updates, optimizing concurrency and memory layout.
• Investigate and resolve performance bottlenecks using profiling and benchmarking, driving system design decisions for senior candidates.

Nexus is the engine for verifiable finance, building a blockchain designed to embed the global financial system into one compounding system. Headquartered in San Francisco with a growing presence in Buenos Aires, the cross-continental team is backed by leading investors and works with more than 100 partners.

• Design and build core systems for our new product from scratch.
• Build low-latency, high-reliability services that interact directly with Solana's transaction and block building pipeline.
• Own critical infrastructure: order routing, execution, real-time market data, and position management.

Jito builds the market layer of Solana, providing execution, capital, and incentive infrastructure for the network's onchain economy. They are a small, profitable company with a lean, high-density team that values ownership, fast execution, and technical excellence.

• Design and implement low-latency backend systems and APIs for quoting, hedging, and executing across on-chain and traditional trading venues.
• Collaborate with the trading team to define interfaces and workflows between pricing, execution, and market data services.
• Build reconciliation and data-integrity tooling to ensure positions, fills, and PnL consistency across live trading state.

Ondo Finance provides institutional-grade, blockchain-enabled investment products and services, with a technology arm developing DeFi and an asset management arm creating tokenized funds. They are a well-capitalized, fully remote team with members across the U.S., backed by top investors.

• Design and implement scalable backend services and APIs for cryptocurrency swapping.
• Build routing and aggregation logic for swap execution across multiple liquidity sources.
• Integrate on-chain and off-chain data sources (RPC nodes, indexers, third-party APIs).

Biti Pro is a company building core backend systems for cryptocurrency swapping and DeFi aggregation. They are a small team focused on high-performance, scalable services.

• Write reliable, secure, and scalable code for Lithic's product platform with minimal tech debt.
• Improve system reliability and participate in team on-call rotation.
• Own projects from planning to launch, including API key management, audit logging, and search.

Lithic is a modern card issuing and processing platform for financial companies to build the future of payments. They are a team of 170+ across 26 states and 7 countries, with a remote-first culture.

• Design, implement, and test distributed energy resource controls and telemetry software on customer hardware at sites around the world.
• Develop high-performance, production-grade applications optimized for resource- and bandwidth-constrained environments.
• Implement and enforce best security practices for critical infrastructure and cyber-physical systems, while mentoring junior engineers.

Verse is building an energy intelligence platform for the AI economy, helping large energy consumers achieve faster, cheaper, and cleaner power by combining real-time control of energy assets with complete visibility into their energy portfolio. The company is a high-growth startup backed by Bessemer, GV, Coatue, and NVIDIA, with a culture rooted in empathy, transparency, and thoughtful action.

• Lead and mentor the Backend Engineering team, focusing on technical expertise and career growth.
• Champion the vision and execution of backend components like streaming data ingest and core APIs.
• Collaborate with tech leads and product managers to ensure support for fielded production deployments.

Dragos is the global leader in OT cybersecurity, combining technology, threat intelligence, and expert services to protect critical infrastructure. The company operates a remote-first, mission-driven team across North America, Europe, the Middle East, and APAC, built on authenticity, transparency, and trust.

• Evolving Supabase Edge Runtime, an open-source Rust-based host that runs Deno isolate and enforces per-request memory and CPU limits.
• Implementing monitoring, alerting, and OpenTelemetry tracing to drive latency and reliability improvements.
• Expanding functions for more use cases like AI inference, MCP servers, and improving developer experience with Supabase CLI.

Supabase is the Postgres development platform, providing a complete backend solution including Database, Auth, Storage, Edge Functions, Realtime, and Vector Search. With a globally distributed team of ~400 members across 60+ countries, they are open-source-first and move fast, building in public.

• Design, build, and maintain high-throughput, low-latency C++, Go, and Python services for core platform components.
• Take complete ownership of the feature lifecycle from development through production deployment and ongoing operations.
• Implement and integrate complex algorithms including tracking, inference, and sensor fusion into production services.

Cavnue, a Consor company, develops smart road technologies that deliver real-time digital twins of the roadway environment using AI, sensors, and cameras to improve safety and efficiency. We are building a diverse, remote-friendly team focused on engineering excellence and real-world impact.

• Design, develop, and maintain core systems for market data products, ensuring reliability and scalability.
• Contribute to architectural decisions and solve complex technical challenges across engineering teams.
• Optimize systems for low latency and high throughput, focusing on performance improvements.

The company builds high-performance systems for modern financial markets. It is a globally distributed team of experienced engineers and financial technology specialists.

• Implement and manage the infrastructure stack to enable the engineering team to ship quickly and effectively.
• Proactively identify and eliminate bottlenecks in the devops process to ensure optimal developer velocity.
• Maintain Tempo chain reliability, validator infrastructure, and explorer reliability.

Tempo is a layer-1 blockchain purpose-built for stablecoins and real-world payments, born from Stripe and Paradigm. They are a team of crypto-optimists building infrastructure for onchain payments.

• Own backend solutions end to end, from problem definition through production.
• Design and evolve services for performance, scale, resilience, and data integrity.
• Work closely with product and engineering colleagues to turn complex requirements into simple, durable solutions.

Trading212 enables everyone to build wealth by reinventing trading and investing through exceptional products. They serve over 6 million clients with over €38 billion in assets, fostering a culture of high standards, high velocity, and ownership.

• Develop and maintain a robust backend hosting a novel reasoning engine, focusing on systems architecture and scalability.
• Implement CI/CD pipelines, observability, and scalable services using languages like Rust, OCaml, or TypeScript.
• Collaborate with the team to define features, write design documents, and deliver results end-to-end.

Planting Space builds modular probabilistic models for rigorous analysis in finance and scientific research. They are a small, collaborative team focused on robust and scalable systems, seeking engineers with an entrepreneurial spirit.

• Own backend solutions end to end, from understanding business problems to production deployment.
• Design and evolve services for performance, scale, resilience, and data integrity.
• Diagnose production problems, address root causes, and share knowledge across the team.

Trading212 enables everyone to build wealth by creating exceptional trading and investing products. Serving over 6 million clients with more than €38 billion in assets under management, the company values high standards, high velocity, and engineering ownership.

• Design and develop foundational components and frameworks for our Agentic AI platform.
• Collaborate with cross-functional teams to create platform solutions that empower developers.
• Provide production support and ensure platform stability, working closely with ML engineers.

Legion builds secure, reliable AI systems that integrate with complex platforms, optimizing workflows and enhancing human capability. They work with partners like Palantir, Nvidia, HPE, and Oracle, and are looking for bold thinkers to shape the future of grounded AI.

• Design, build, and maintain core AI capabilities that power intelligent experiences across the platform.
• Develop reusable capabilities for model integration, reasoning, and evaluation.
• Optimize AI systems through experimentation, quantitative evaluation, and iterative refinement.

Legion embeds intelligence inside complex systems, unlocking data and accelerating human workflows for government and enterprise. They collaborate with world-class partners like Palantir and Nvidia, building intelligent infrastructure with a team of bold thinkers.