Build and improve Nitro, the core node software powering Arbitrum, focusing on transaction execution, state management, and network performance.
Solve distributed systems challenges and enhance reliability, observability, and security across critical blockchain infrastructure.
Develop new capabilities for the Arbitrum stack, including Stylus, which enables smart contracts in Rust and C/C++ via WASM.
Offchain is pioneering blockchain scalability and security, building the Arbitrum stack that powers the leading Ethereum scaling solution. The company is backed by $124 million in funding and has a team of thinkers and doers committed to decentralized systems and a more equitable digital future.
Own architecture and write core low-latency code in Rust for validator submission and network routing.
Cut latency through optimal algorithms, data structures, and OS-level performance tuning.
Lead multi-region rollout on bare-metal and cloud, automate releases, and own latency/uptime SLOs.
P2P.org is the largest institutional staking provider with a TVL of over $10B and a 20%+ market share in restaking. We unite talented individuals globally and share a passion for decentralized finance.
Design, build, and maintain MCP servers and tools in Rust to shape how AI agents interact with federated graphs.
Ship customer-driven improvements weekly and engage directly with users to influence the roadmap.
Own projects end-to-end while contributing to codebase health, bug fixes, and operational reliability.
Apollo builds tools for GraphQL platforms used by companies like Netflix. The team is collaborative and focused on growth, aiming to change how software is built.
Design and implement robust, testable, high-performance systems and tools in Rust.
Optimize existing software architectures to enhance speed and efficiency.
Actively participate in all phases of the development lifecycle, including debugging and optimization.
Dragos defends industrial organizations that provide necessities like running water and electricity. As a remote-first market leader in ICS/OT Cybersecurity, the company has operations in North America, Europe, the Middle East, and APAC, and values authenticity, transparency, and trust.
Develop and maintain high-performance backend services and platform components using Rust.
Design and implement scalable APIs and asynchronous microservices for distributed systems.
Collaborate with Product, DevOps, and Security teams to integrate cybersecurity features and ensure robust, secure solutions.
Exein builds the security layer for a world where physical and digital threats converge, from kernel-level runtime protection on embedded devices to cloud-native platforms. They are a growing company with a culture of technical excellence, continuous learning, and inclusive collaboration.
Build the core AI platform that powers a copilot inside a new, AI-native trading experience.
Develop a high-performance backend in Rust supporting streaming responses, low-latency tool execution, caching, and reliable orchestration of model plus tools.
Design robust APIs and runtime components for AI capabilities including authentication, rate limits, auditing, tracing, retries, and fallbacks.
Clear Street is a diversified financial services firm replacing legacy infrastructure used across capital markets. Founded in 2018, the company has built a cloud-native clearing and custody system and supports billions in trading volume per day, with a culture focused on collaboration and diversity.
Design and build evaluation systems to measure correctness, safety, latency, and regression risk for an AI copilot in a trading platform.
Develop automated quality gates, benchmark suites, and incident response for AI model reliability.
Partner with engineering and product to define safe tool/action contracts and drive model improvement loops.
Clear Street is modernizing the brokerage ecosystem by building a cloud-native clearing and custody system for capital markets. Founded in 2018, the firm supports billions in daily trading volume and fosters a collaborative culture with diverse, high-performance teams.
Own full-stack design and delivery of platform capabilities from architecture to deployment and observability.
Build open source infrastructure packages for airgap and cloud-native environments and write comprehensive tests.
Work directly with product and customers to translate mission problems into platform capabilities and mentor team members.
Defense Unicorns delivers mission value by streamlining software delivery for defense and civil agencies, focusing on speed, security, and optionality. The team includes innovators, software engineers, and veterans with decades of experience delivering technology programs across the federal market.
Lead architecture evolution to significantly improve data processing throughput and scalability.
Identify and resolve bottlenecks across data pipelines via profiling and benchmarking.
Define cross-product standards for inter-service communication and system observability.
Filigran develops open-source cybersecurity solutions for proactive threat management. Trusted by over 6,000 organizations worldwide, we foster a culture of Cohesion, Openness, Responsibility, and Equity.
Design and deliver robust, high-scale routing experiences for Data Pipelines for Twilio Segment.
Operate always-available, complex distributed systems in cloud environments.
Collaborate cross-functionally with design, product, and other engineers to define solutions.
Twilio is shaping the future of communications, delivering innovative solutions to hundreds of thousands of businesses and empowering millions of developers worldwide. The company is remote-first with a strong culture of connection and global inclusion, and employs a diverse team of Twilions.