Build and maintain Zallet (our CLI wallet) and Zcash’s Rust-based core libraries
Implement protocol features based on existing specifications and guidance
Developing and maintaining specifications to enhance, document, and support security analysis of the Zcash protocol, either led by ZODL or in collaboration with third-party developers.
2+ years working in Crypto/Blockchain using Rust or Go or C++.
Strong software development background and knowledge of common algorithms and data structures.
Strong knowledge of writing efficient and safe code.
Trust Wallet is the leading non-custodial cryptocurrency wallet, trusted by over 200 million people worldwide. They give individuals the freedom to own their assets and confidently participate in the future economy. They are a truly global organization, with international teams and a flat organizational structure.
Lead cryptographic reviews and audits of specifications and implementations across ZODL projects.
Perform security and privacy reviews of protocol changes, wallet flows, and cross-chain integrations.
Contribute to and review Zcash protocol specifications (ZIPs) and internal design documents.
ZODL (Zcash Open Development Lab) is building the software necessary to onboard billions of users to Zcash. Created by the original inventors and developers of the Zcash protocol, they deliver world-class UX for ZEC on top of their core protocol work.
Build security tools and controls that are deployed across the company
Design, develop, and deploy new core security features to public Chainlink products like the Chainlink core node
Define new processes and systems that make attacks on our networks hard to execute and easy to detect
Chainlink Labs is the industry-standard oracle platform bringing the capital markets onchain and powering the majority of decentralized finance (DeFi). Many of the world’s largest financial services institutions have also adopted Chainlink’s standards and infrastructure.
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
Implement security at every layer, from transaction signing to user data protection
Jito builds the Market Layer of Solana, the infrastructure that powers real markets on-chain. They build foundational network infrastructure and are a small, profitable company with product-market fit where every team member drives significant technical decisions and shapes our product roadmap.
Design and implement high-throughput, low-latency services and libraries in Rust and TypeScript
Manage the full lifecycle of on-chain wallets across blockchains - from derivation to ownership, at the scale of a global exchange
Build and maintain the systems that ensure liquidity for clients while maintaining strict compliance with regulatory requirements
Kraken is a mission-focused company rooted in crypto values, aiming to accelerate the global adoption of crypto for financial freedom and inclusion. As a fully remote company with Krakenites in 70+ countries, they develop premium crypto products for experienced traders, institutions, and newcomers.
Deliver backend services that coordinate fast, fault-tolerant cross-chain transactions across multiple blockchain ecosystems
Improve system reliability and resilience under adversarial conditions to strengthen protocol trust and uptime
Reduce transaction processing latency through optimizations in RPC usage and system performance
Chainlink is the industry-standard oracle platform bringing the capital markets onchain and powering the majority of decentralized finance (DeFi). They have enabled tens of trillions in transaction value and now secures the vast majority of DeFi.
Develop and maintain infrastructure that powers digital asset custody, trading, staking, and settlement for enterprise financial institutions.
Contribute to virtual accounting layers, API integrations, and multi-tenant platform architectures with guidance from senior engineers.
Write clear, concise, tested code and participate in code reviews to improve engineering practices.
Anchorage Digital is building the world’s most advanced digital asset platform for institutions to participate in crypto. They are a diverse team of more than 600 members, united in building the future of finance by providing the foundation upon which value moves safely in the new global economy.
Design and implement a shared core layer used across desktop, mobile, and backend
Contribute to architecture decisions around CRDT and distributed systems
Collaborate closely with frontend, mobile, and backend engineers to integrate Rust components
Termius is redefining how engineers interact with remote systems. Millions of engineers and thousands of companies rely on Termius worldwide. As a leading cross-platform SSH client, their mission is to boost productivity and foster collaboration by rebuilding the Terminal for the modern era.
Define and drive the technical architecture for the SSCS Add-On, including backend systems for package policy enforcement, provenance generation, artifact signing, and malicious package detection.
Lead design and implementation work for Supply-chain Levels for Software Artifacts (SLSA) Level 2 and Level 3 capabilities within GitLab CI/CD.
Architect integrations with Sigstore services such as Cosign, Fulcio, and Rekor, including approaches for signing workflows, verification, and trust boundaries.
GitLab is the intelligent orchestration platform for DevSecOps. More than 50 million registered users and more than 50% of the Fortune 100 trust GitLab to ship better, more secure software faster.
Design and implement backend features across the Add-On's software supply chain security surface.
Build and improve the package policy evaluation engine, including rule compilation, request matching, enforcement decisions, and performance-sensitive execution paths tied to GitLab's Dependency Firewall infrastructure.
Develop artifact signing and verification workflows, including Sigstore and Cosign integrations, signing key lifecycle management, keyless signing with OpenID Connect (OIDC), and policy-based promotion gates, enabling trusted and auditable software delivery.
GitLab is the intelligent orchestration platform for DevSecOps. More than 50 million registered users and more than 50% of the Fortune 100 trust GitLab to ship better, more secure software faster. The same principles built into our products are reflected in how our team works; they embrace AI as a core productivity multiplier, with all team members expected to incorporate AI into their daily workflows to drive efficiency, innovation, and impact.
Develop the secure software at the core of the Anchorage Digital Platform.
Refactor bottlenecks, reduce feedback loops and simplify APIs to improve the code base.
Mentor engineers on the team within their area of specialization or domain.
Anchorage Digital is building the world’s most advanced digital asset platform for institutions. They are a diverse team of more than 600 members, uniting minds from platform security, financial services, and distributed ledger technology.
Build scalable, high-quality applications using Rust.
Work on cutting-edge data and cloud technologies.
Contribute to a fully remote and globally distributed team.
OpenObserve is a rapidly expanding open-source observability platform. We unify logs, metrics, and traces into one deployable system and are supported by leading investors.
Guide the design and implementation of backend features for GitLab Secret Detection in Ruby on Rails, GraphQL, and Go.
Build clean, well-tested, maintainable code that meets GitLab standards for reliability and performance.
Partner with product management and engineering peers to deliver backend capabilities that improve detection, validation, remediation, and audit trail coverage.
GitLab is the intelligent orchestration platform for DevSecOps. They enable organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. They have more than 50 million registered users and are a high-performance culture driven by their values and continuous knowledge exchange.
Design, develop, and maintain scalable, robust backend features and APIs using modern frameworks.
Ensure high performance and reliability across our distributed systems.
Contribute to systems powering authentication, billing, AI tooling, observability, connectors, and developer experience.
Mistral AI democratizes AI through high-performance, optimized, open-source and cutting-edge models, products, and solutions, with a comprehensive AI platform designed to meet enterprise needs. They are a dynamic and collaborative team passionate about AI, with a diverse workforce thriving in competitive environments and committed to driving innovation; their teams are distributed between France, USA, UK, Germany, and Singapore.
Partner with product managers, designers, and analysts to identify growth opportunities and turn them into high-quality, data-driven engineering solutions.
Implement reusable services and components that power marketing campaigns, onboarding, KYC, and first-funding experiences across web and mobile.
Collaborate on distributed systems that handle large volumes of global traffic while maintaining high performance and reliability.
Kraken is a mission-focused company rooted in crypto values. They aim to accelerate the global adoption of crypto, so that everyone can achieve financial freedom and inclusion. As a fully remote company, they have Krakenites in 70+ countries and are industry pioneers who develop premium crypto products.
Implement backend features across the Add-On's supply chain security product, including package policy integrations, ingestion pipeline improvements and delivering maintainable code.
Build and maintain integrations between Add-On functionality and GitLab's existing software composition analysis scanning infrastructure to improve a reliable user experience.
Write and maintain comprehensive automated test coverage, including RSpec and integration tests, to improve test reliability and support safe releases as the codebase grows.
GitLab is the intelligent orchestration platform for DevSecOps. More than 50 million registered users trust GitLab to ship better, more secure software faster. Their high-performance culture is driven by their values and continuous knowledge exchange, enabling their team members to reach their full potential while collaborating with industry leaders to solve complex problems.
Work alongside full-stack engineers to ensure product functionality is scalable and reliable.
Partner closely with product and engineering teammates to design, build, and operate backend systems.
Take ownership of backend and systems aspects of product features from early design through production and scale.
Vesta is rebuilding the mortgage LOS (Loan Origination System) from the ground up with an AI-augmented platform. They have raised $55M from top tier investors and value humility, empathy, self-awareness, and an orientation towards action on their team.