Source Job

• Build scalable quality strategies and automated regression infrastructure for AI-assisted software transformation workflows.
• Diagnose complex failures across C/C++, Rust, Python, build systems, and heterogeneous target environments.
• Lead quality engineering practices, mentor engineers, and partner with Engineering, Research, and Solutions on release evidence.

Code Metal automates software engineering, using formal methods to verify AI-written code, with customers like the U.S. Air Force, RTX, and Toshiba. Founded in 2023, the Boston/SF startup is backed by Accel and Salesforce Ventures.

• Lead large-scale Sensor Platform initiatives in collaboration with product, infrastructure, and engineering peers.
• Own root cause analysis and postmortems for complex production issues, ensuring durable fixes.
• Establish standards for documentation, test harnesses, and observability across the codebase.

Dragos is the global leader in OT cybersecurity, combining technology, threat intelligence, and expert services to protect critical infrastructure. The team is remote-first, mission-driven, and built on authenticity, transparency, and trust.

• Write reliable, secure, scalable code for real-time authorization and fraud-prevention systems.
• Build customer-facing features like rules improvements, velocity controls, and fraud tooling.
• Own projects from planning to launch and participate on on-call rotation.

Lithic is the modern card issuing and processing platform empowering ambitious financial companies to build the future of payments. We are a team of 170+ across 26 states and 7 countries, headquartered in New York City.

• Build and maintain fleet-wide OTA update capabilities for thousands of on-premise appliances.
• Develop and optimize control-plane connectivity between deployed appliances and AWS infrastructure.
• Tune network stack performance and conduct profiling to improve reliability across a distributed fleet.

They build and operate core edge infrastructure deployed across thousands of on-premise appliances in school networks. The company offers a remote senior systems engineering role, with a distributed team collaborating across India, the US, and the UK.

• Develop reliable code for agent-based cybersecurity services across Windows, macOS, and Linux.
• Own complex technical initiatives from architecture to delivery, mentoring engineers.
• Collaborate with Product, Security, and DevOps teams on endpoint security solutions.

They build endpoint security software that protects organizations across major operating systems. The company values technical excellence, engineering ownership, and continuous learning in a remote-first culture.

• Lead and develop a distributed engineering organization across multiple time zones.
• Drive technical roadmap and engineering excellence for scalable, secure, observable systems.
• Foster ownership, continuous learning, and reliability practices across engineering teams.

They build developer tooling for identifying security vulnerabilities and code quality issues early in the development lifecycle. A distributed, collaborative culture across Canada, US, and Europe, emphasizing ownership and continuous learning.

• Design, develop, and maintain large-scale distributed database and storage systems.
• Build performance-critical infrastructure using Go, Rust, C++, or similar systems programming languages.
• Operate production systems and troubleshoot complex reliability, performance, and availability issues.

This company builds and operates large-scale distributed database and storage infrastructure with a focus on low latency and high availability. They offer a fully remote, multinational work environment and comprehensive healthcare coverage.

• Lead the architecture and development of the Hercules Database, backend services, and SDKs.
• Engineer for low latency, high throughput, and efficient resource use across data-intensive, multi-tenant systems.
• Build and operate reliable hosting infrastructure with strong tenant isolation, observability, and failure resilience.

Hercules builds the future of AI software development with a platform-as-a-service including a database, backend services, and SDKs. It is an early-stage company with a founding team based in San Francisco and a culture that values shipping fast, excellence, and hunger.

• Recruit, mentor, and develop the sales engineering team for the core portfolio.
• Refine and scale sales engineering processes including discovery, technical qualification, and proof-of-concept.
• Partner with sales leadership and clients to design business solutions that drive revenue growth.

Zscaler accelerates digital transformation with the Zero Trust Exchange platform, securely connecting users, devices, and applications anywhere. With a global team distributed across 200+ data centers, the company is building an AI-native enterprise focused on solving security challenges through collaboration, ownership, and a challenge culture.

• Design and document networking features and connectivity solutions.
• Enhance product capabilities focusing on Funnel and DERP relay infrastructures.
• Investigate and resolve complex escalated network difficulties.

Tailscale is making safe connection effortless by delivering software that securely interconnects people and their devices, no matter where they are. Founded in 2019 and fully distributed, they are backed by Accel, CRV, Insight, Heavybit, and Uncork Capital.

• You will own the reliability and quality bar for an AI copilot embedded in a trading platform used by sophisticated investors.
• You will design and build evaluation systems that measure correctness, safety, latency, and regression risk across market analysis, portfolio/risk reasoning, and trading workflows.
• You will develop and maintain benchmarks including curated golden sets, scenario suites, stress/adversarial cases, and continuously refreshed market-based test corpora.

Clear Street is a diversified financial services firm replacing legacy infrastructure in capital markets with a cloud-native clearing and custody system. Founded in 2018, the firm supports billions in daily trading volume and combines engineering talent with finance professionals to build a best-in-class experience.

• Design and implement AI-powered capabilities for C++ developers, including debugging, code understanding, refactoring, and project navigation.
• Provide hands-on technical leadership, shaping architecture and influencing direction through engineering expertise and product judgment.
• Collaborate with product, ML, QA, and other teams to define and deliver the AI roadmap for the C++ ecosystem.

Jobgether is an AI-powered job matching platform that connects candidates with hiring companies through fair, objective review. They leverage AI to streamline the hiring process, ensuring top-fit candidates are shortlisted for relevant roles.

• Lead technical vision for NodeZero's defensive agents, setting direction alongside AI researchers.
• Write production code weekly, mentor engineers, and drive design and code reviews.
• Own the technical strategy for autonomous remediation, from architecture to shipped features.

Horizon3 is a remote cybersecurity company focused on autonomous pentesting and attack path remediation. The team is a fusion of former Special Operations cyber operators, startup engineers, and security practitioners, with a culture of collaboration, ownership, and results.

• Design, build, and operate a next-generation unified build system for robotic surgery platforms using Bazel, Rust, C/C++, and Python.
• Optimize build performance through remote caching and execution, debugging distributed builds in production environments.
• Mentor engineers and drive technical leadership while maintaining hands-on involvement in implementation.

Intuitive is a pioneer and market leader in robotic-assisted surgery, dedicated to expanding the potential of physicians through minimally invasive care. With over 25 years of experience and a global team, we foster an inclusive culture built on diversity of thought and mutual respect, empowering team members to advance healthcare.

• Direct the agent array on production workstreams by decomposing problems into tasks and integrating agent output into shipped software.
• Review agent-generated pull requests at volume and depth, identifying correctness, security, and accessibility defects.
• Author evaluation suites that make quality measurable using eval-driven development and own end-to-end quality within a FedRAMP-authorized environment.

Granicus provides cloud-based solutions for government communications, website design, meeting management, and records management, serving over 5,500 agencies and 300 million citizens. With a globally distributed team and a culture of transparency and inclusion, Granicus has been recognized on the GovTech 100 list for the past 5 years.

• Curate high-quality code examples and datasets for LLM training and evaluation.
• Develop and assess AI-generated software across multiple programming languages and the full SDLC.
• Collaborate with research teams to design verification mechanisms and improve coding benchmarks.

This partner company specializes in evaluating large language models and improving AI systems through rigorous engineering benchmarks. It offers a remote, collaborative culture where engineers and researchers advance AI evaluation workflows together.

• Take ownership of technically complex, mission-critical areas, defining technical strategy for new products and platform capabilities.
• Design and ship full-stack features end to end, working across backend, frontend, and mobile to deliver AI-powered products.
• Partner with product, design, and customer-facing teams to translate real-world problems into measurable outcomes and mentor fellow engineers.

Samsara is the pioneer of the Connected Operations Cloud, helping organizations harness IoT data to improve safety, efficiency, and sustainability of physical operations. They are a public company with ~$2B ARR, growing 30%+ year over year, and foster a culture of ownership, customer focus, and long-term thinking.

• Drive technical vision and set the roadmap for the squad, partnering with engineering leadership.
• Architect the end-to-end automation platform for package creation, test generation, and image building.
• Build AI-powered tooling with LLM integration for manifest generation and quality gates.

Chainguard delivers hardened, secure builds of open source software to secure the software supply chain. They serve Fortune 500 enterprises and are backed by top investors, with a remote-first culture focused on trust, intentional action, and customer obsession.

• Deliver end-to-end functionality across a TypeScript/React front end and a Golang backend.
• Build products for partner integrations, including wallet systems and game systems in a certified environment.
• Design and build APIs (GraphQL, gRPC, REST) and shape the architecture of a young platform on AWS.

Oddin builds products that partners integrate into their own platforms, focusing on AI-first development where 80-90% of code is generated with AI. They are a young startup with a collaborative, autonomous product team and no strict processes.

• Design, build, and operate GitLab Orbit backend services, primarily in Rust, within a distributed, cloud-native environment.
• Improve deployment, monitoring, and operations using Kubernetes, Helm, Terraform, and cloud services from AWS or GCP.
• Automate operational work, strengthen observability, and manage production issues to reduce single points of failure.

GitLab is the intelligent orchestration platform for DevSecOps, helping organizations increase developer productivity, improve operational efficiency, and accelerate digital transformation. Trusted by more than 50 million registered users and over 50% of the Fortune 100, GitLab fosters a high-performance culture driven by shared values and continuous knowledge exchange.