Source Job

• Build and improve customer-facing package registries, APIs, and artifact-serving systems for secure software consumption.
• Develop and operate backend services in Go, owning projects from technical design through deployment and iteration.
• Collaborate across engineering and product teams to enhance scalability, reliability, and observability of production systems.

This partner company builds secure, reliable systems for serving software artifacts at scale, including customer-facing registries and APIs. It is a collaborative, remote-first environment focused on engineering ownership and continuous learning.

• Design and build automation systems for package creation, test generation, and image building.
• Develop AI-powered tooling using LLMs for manifest generation and validation.
• Write production Go code and create quality tools to improve customer reliability.

Chainguard delivers hardened, secure, and production-ready builds of open source software. Backed by leading investors, they serve Fortune 500 enterprises and global industry leaders.

• Break down larger projects into individual tasks and deliver them in phases with support from your tech lead and manager.
• Collaborate with product management, design, and analytics to make decisions that consider risks and trade-offs.
• Support operations and availability of your team's artifacts by creating metrics and participating in on-call efforts.

Affirm is a financial technology company that provides transparent, flexible payment solutions. The company is remote-first and fosters a culture of care, transparency, and flexibility.

• Own and ship high-impact features end-to-end, from technical design through production.
• Work directly with customers and internal stakeholders to understand pain points and build solutions.
• Set a high technical bar through design reviews, code review, and hands-on execution.

Float Health builds a marketplace for specialty pharmacy to bring care home. The Y Combinator-backed startup has a small engineering team, facilitated over 100,000 patient visits with 1,400 nurses, and emphasizes high autonomy.

• 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.

• Build and improve customer-facing registries, APIs, and artifact-serving systems that make open source software easy to consume securely and reliably.
• Develop and operate backend services in Go, focusing on scalability, reliability, observability, and performance.
• Collaborate with engineers and product partners on design, code review, and solving production issues.

Chainguard is the trusted source for open source, delivering hardened, secure, and production-ready builds of the software engineers and AI agents rely on. It is a venture-backed company serving Fortune 500 enterprises with a remote-first culture and a focus on customer obsession and intentional action.

• Design, develop, and maintain internal software, services, and automation using Go and Rust.
• Build and operate Kubernetes-based infrastructure and improve developer workflows and CI/CD.
• Collaborate across teams to solve ambiguous technical challenges and improve system reliability.

Our partner is a high-growth technology organization building internal platforms to enable efficient engineering. They operate with small, autonomous teams in a high-trust, collaborative remote environment with a focus on technical excellence.

• Own and ship Looma Marketplace features end-to-end, working backend-first across Go, GCP, Postgres, Redis, and BigQuery while contributing to Angular frontend when needed.
• Evolve the backend toward scalable async workflows, queues, concurrency, caching, and clearer service boundaries while improving CI/CD and testing.
• Own integrations, data pipelines, and internal tooling, using AI-assisted workflows to move quickly while keeping verification and quality high.

Looma is an in-store digital media platform that uses a network of screens to help retailers modernize and monetize their stores while enabling brands to tell their story at the point of decision. It is a small, product-focused team with a culture of ownership, craftsmanship, and AI-native engineering.

• Own product features end to end, from design and implementation through rollout and iteration.
• Extend agentic AI capabilities into customer-facing product experiences.
• Contribute to architectural decisions while collaborating with Product and front-end teams.

This company builds next-generation products at the intersection of software supply chain security, AI, and developer tooling. It has a small, fast-moving engineering team in a remote-first environment focused on practical tools for developers.

• 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.

• Build and maintain core components of the clearing house in Go on GCP, including customer onboarding flows and data ingestion pipelines.
• Take ownership of ambiguous problems and specific features, driving them from design through production with appropriate testing and observability.
• Design, implement, and operate reliable agentic workflows that automate complex, multi-step tasks across production systems.

Chainguard is the trusted source for open source, delivering hardened, secure, and production-ready builds of open source software. The company is venture-backed by leading investors and serves Fortune 500 enterprises, including OpenAI and Snowflake.

• Develop and operate distributed, scalable backend applications for a high-volume content distribution platform.
• Design systems for high availability, low latency, and resilience.
• Collaborate with routing and infrastructure teams to ensure optimal performance during traffic peaks.

A partner company is looking for a Senior Back End (Go) Developer to build and operate large-scale digital content distribution platforms handling millions of requests per minute. The company fosters a DevOps culture and offers remote work in Brazil with a comprehensive benefits package.

• Lead the development of Reddit's Ingestion Platform, designing and delivering reliable software for distributed data movement across streaming and batch workloads.
• Own the architecture of the platform's control and data planes, including pipeline APIs, connectors, and sink integrations, expanding beyond Kafka-to-BigQuery to S3/GCS and Apache Iceberg.
• Mentor engineers, drive migrations from legacy systems, and establish robust reliability, security, and operational practices for pipelines running on Kubernetes.

Reddit is a community of communities built on shared interests, passion, and trust, hosting authentic conversations across 100,000+ active communities and approximately 130 million daily active unique visitors. The company fosters an open, collaborative culture with a focus on reliability, performance, and efficiency.

• Design, develop, and support enterprise solutions and infrastructure for CIQ's HPC and cloud-native products.
• Lead architecture discussions, drive proof of concepts, and guide projects from ambiguous requirements to implementation.
• Collaborate with engineering, product, sales, and open-source communities to improve products and share knowledge.

CIQ builds enterprise infrastructure for demanding workloads, including OS, AI, HPC, and cloud-native orchestration. As the founding partner of Rocky Linux, they serve major enterprises and research institutions with a builder-driven, open source culture.

• Architect and build robust, scalable, and highly available distributed infrastructure.
• Build a cutting-edge cloud-native platform on public cloud and automate resource management.
• Improve reliability, security, and cost efficiency of cloud services.

ClickHouse builds a real-time analytics database platform and manages ClickHouse Cloud data plane end-to-end with compute, networking, and security. As a rapidly scaling global startup, the company operates across 25+ countries and fosters a flexible, remote-friendly culture with equity and healthcare benefits.

• Design and build distributed data systems handling large-scale ingestion and processing.
• Drive architectural decisions and take end-to-end ownership of critical components.
• Collaborate with product teams to translate ambiguous requirements into robust technical solutions.

Our partner builds a large-scale, multi-chain data platform that ingests, models, and delivers blockchain data to users and developers. They are a remote-first, distributed team with a strong engineering culture focused on ownership and collaboration.

• Design, build, and maintain core services and infrastructure that power large-scale logistics solutions.
• Identify and address performance bottlenecks, ensuring reliability and scalability across the platform.
• Collaborate closely with Product, Data Science, and other engineering teams to deliver impactful features.

Roadie is a logistics and delivery platform that helps businesses tackle delivery complexities with same-day and last-mile solutions. With over 310,000 independent drivers nationwide and a remote-first culture, Roadie values innovation, collaboration, and flexibility.

• Develop, test, and maintain distributed systems and microservices using Golang, Node.js, Java, and RESTful/gRPC APIs.
• Deploy scalable web applications inside containerized environments using Kubernetes, Docker, and AWS.
• Utilize automated CI/CD pipelines and leverage AI in the SDLC to ship code safely.

JumpCloud is the AI-powered unified IT management platform designed to secure the modern workforce. The company is remote-first with teams in 15+ countries, fostering a collaborative and fast-moving environment.

• Collaborate with engineers, product managers, and designers to build well-scoped features.
• Contribute to design, implementation, testing, and deployment of software.
• Grow technical depth through pairing, code reviews, and production support.

Defense Unicorns delivers mission value by streamlining software delivery for defense and civil agencies, focusing on secure, cloud-native solutions. Our team of innovators, software engineers, and veterans brings decades of experience across the federal market, fostering a culture of action, ownership, and focus.

• Design, implement, and ship backend features in Ruby/Rails or Go with minimal guidance, partnering with Product and Frontend teams.
• Write maintainable, secure, performant code, design APIs, and manage data models and migrations.
• Test and review code, operate what you build, and leverage AI tools to increase productivity.

GitLab provides an intelligent DevSecOps platform that enables organizations to increase developer productivity and accelerate digital transformation. With over 50 million users and trust from the Fortune 100, GitLab fosters a high-performance, remote-first culture where every voice is valued.