Build and operate Go backend services for key management and signing at scale.
Design and implement cryptographic recovery and trust models for non-custodial wallets.
Work with external auditors, Kubernetes, and distributed systems in a security-critical environment.
Offchain Labs builds the Arbitrum stack, the leading Ethereum scaling solution. They are a well-funded company with $124 million in backing, a small but high-ownership team, and a culture of security-first engineering and collaborative review.
Design, build, and ship Go-based backend services for consumer and enterprise product surfaces.
Own backend API, infrastructure, and data pipeline improvements from definition to deployment.
Work within AWS infrastructure, including security, compliance, and developer platform capabilities.
We build production systems around medical-grade wearable physiology data, including APIs, SDKs, cloud infrastructure, and data pipelines for health and performance. We are a lean, early-stage startup where individual contributors have direct impact.
Design, build, and operate the distributed systems that deliver feature-flag configuration to LaunchDarkly SDKs.
Own and improve the reliability, latency, and scalability of our streaming and polling infrastructure.
Debug and resolve complex production issues while sharing the team's on-call rotation.
LaunchDarkly builds a feature management platform that enables safe and gradual software releases. The company is growing and fosters a humble, open, collaborative culture.
Design and build agent runtime infrastructure with Firecracker, Rust, and Go
Define and enforce security boundaries for running untrusted AI agents
Architect global scale distributed systems for scheduling and orchestration
We build agent sandboxes—runtime infrastructure that is fast, durable, and secure by default for AI systems. We are a small, globally distributed team based in San Francisco backed by forward-thinking investors.
Design and implement backend services for authentication and authorization at global scale.
Build and maintain highly available, secure distributed systems with operational excellence.
Collaborate with teams to solve complex identity challenges and mentor engineers.
Jobgether is an AI-powered job matching platform that connects candidates with hiring companies. They use technology to streamline recruitment and emphasize a collaborative, inclusive culture focused on innovation and continuous improvement.
Lead cross-cutting initiatives and drive modular backend architecture to improve scalability and developer velocity.
Set standards for APIs, testing, security, and operability while mentoring engineers and shaping technical direction.
Own production systems, participate in on-call, and lead AI-assisted engineering workflows with quality and safety guardrails.
GitLab is the intelligent orchestration platform for DevSecOps, helping organizations increase developer productivity and improve operational efficiency. With over 50 million users and trust from more than 50% of the Fortune 100, GitLab fosters a high-performance culture driven by values, continuous knowledge exchange, and AI integration.
Design, build, and maintain scalable distributed backend systems powering platform and product capabilities.
Own backend services end-to-end, from architecture to monitoring, while collaborating with product and engineering peers.
Build and evolve Web3 platform backend components, including protocol integrations and blockchain network support.
Zerion builds backend systems for Web3 infrastructure, powering API and wallet products trusted by 50+ top crypto brands. They have a fully remote team with strong ownership and high code quality, processing over 3.1B requests and supporting 1.7M+ active funded wallets.
Own features end-to-end, from design through implementation and iteration.
Design and build backend systems in Go with REST/gRPC APIs for entitlements and policies.
Provide technical leadership and mentorship to senior and mid-level engineers.
Chainguard provides hardened, secure, and production-ready builds of open source software. It is venture-backed by leading investors and serves Fortune 500 enterprises like Anduril, Canva, and OpenAI.
Build and operate streaming and polling infrastructure for feature flag delivery.
Own projects end-to-end from design to production, including debugging and on-call.
Collaborate with cross-functional teams and improve observability and reliability.
LaunchDarkly provides a feature management platform that enables developers to control software releases and target features to specific user segments. The company fosters a collaborative, inclusive culture and values diversity among its team.
Build and maintain backend services for our LLM gateway, including routing, rate limiting, and observability.
Contribute to sandboxing and isolation infrastructure for safe agent-generated code execution.
Write high-performance backend code in Go, Rust, or async Python, supporting Kubernetes-based platform services.
AZX accelerates positive impact in critical industries through AI transformation. Founded in 2024 and profitable from the start, we work with category leaders in real estate, energy, logistics, and utilities.
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.
Design, build, and maintain highly reliable backend services and distributed systems for RapidFort's security platform.
Build systems for processing and analyzing large volumes of security, vulnerability, container, and runtime data.
Solve complex problems involving concurrency, performance, scalability, and distributed processing across Linux, Kubernetes, and cloud environments.
RapidFort is a cybersecurity company focused on securing and optimizing modern software supply chains and cloud-native environments. The company works with enterprise and U.S. public-sector customers in security-sensitive environments, fostering a culture of technical ownership and collaboration.
Architect and lead the technical direction for Trust & Vault, including card vaulting, authentication, and payment optimization systems.
Design bank-grade, PCI-compliant distributed systems and champion a 'You Build It, You Run It' culture.
Mentor engineers and collaborate cross-functionally to deliver secure, scalable card-data infrastructure.
Yuno is an AI-native operating system for global commerce, connecting merchants to pay-ins, payouts, fraud prevention, and stablecoins via a single API. They serve global brands like McDonald's and NetEase Games, with a distributed team across Europe and beyond.
Define and own the technical architecture for the Identity squad's authentication systems, including edge authentication redesign.
Lead the design and implementation of large-scale, multi-quarter initiatives spanning multiple services and teams.
Mentor and develop senior engineers, providing technical guidance and design feedback.
Grafana Labs is the company behind Grafana Cloud, a fully managed observability platform trusted by more than 10,000 organizations. They are a 100% remote company with a global collaborative culture, backed by leading investors.
Design and implement new US payments gateway functionality in Go, aligned to product requirements and technical architecture.
Work collaboratively with Product, Engineering and other functions to refine requirements and validate implementation choices.
Contribute to technical design activity, including design proposals, implementation plans and problem-solving within Form3 platform architecture.
Form3 revolutionizes the world of payments with cutting-edge technology and innovative solutions. They are a global company that hires talented people from a variety of backgrounds and experiences, committed to a work environment based on diversity, open-mindedness and curiosity.
Design and improve the core orchestration engine for managing Supabase Branches lifecycle.
Provision ephemeral sandboxed execution environments on EKS/ECS for untrusted build workloads.
Implement job scheduling, pipeline optimization, and observability for thousands of concurrent builds.
Supabase is the Postgres development platform, built by developers for developers. They are a globally distributed team of ~400 members across 60+ countries, operating fully remote with an open-source-first culture.
Design, build, and operate Go services powering core APIs and data access paths across HTTP and gRPC.
Own the reliability, performance, and scalability of services, including handling growing traffic and data volumes.
Contribute to code reviews, technical design discussions, and mentor other engineers to raise the technical bar.
Brightfield provides an AI-powered workforce analytics platform that helps large companies manage their extended workforce. We are a fully remote team of data-driven innovators, trusted by the Global 2000 since 2006.
Design and scale high-performance backend systems for real-time data processing and critical API services.
Work across Go and Node.js to build reliable, scalable infrastructure.
Take ownership of complex technical problems from investigation to deployment.
The company builds technology to help leading organizations detect and prevent online fraud. It operates with a fully remote, asynchronous, and collaborative engineering culture.