Sr. Software Engineer Platm

At Hiro, we build the infrastructure that powers the Stacks layer and connects developers to Bitcoin. Our platform provides the core building blocks, from the Stacks API and Platform services to Chainhook-2.0 and the public Testnet that make developing on Stacks and Bitcoin fast, reliable, and scalable. Hiro’s tools serve as the foundation for Stacks and Bitcoin, helping developers build, test, and deploy applications anchored to the most secure blockchain.

Whether it’s indexing Bitcoin transactions, streaming real‑time data through Chainhook, or operating the Stacks Testnet, Hiro’s infrastructure ensures the network runs smoothly and developers can focus on building. Building on Bitcoin is hard. Hiro makes it easier.

Hiro is seeking a skilled and enthusiastic Senior Software Engineer to join our Platform team. If you’re passionate about building and scaling backend systems, APIs, and developer experiences that empower builders in the Bitcoin ecosystem, this role is for you. Our team thrives on collaboration, innovation, and a shared commitment to our mission. We care deeply about each other, the company, and the Stacks ecosystem, fostering a supportive and inclusive culture where engineers can do their best work.

As a Platform Engineer at Hiro, you’ll focus on designing, building, and optimizing the APIs and services that power our developer platform, including Chainhook‑2.0.

Design, build, and maintain scalable backend services and APIs that drive Hiro’s developer platform (e.g. blockchain data, token metadata, ordinals, and Chainhook‑2.0). Work on Chainhook‑2.0, a high‑performance, reliable, and reorg‑aware transaction indexer that delivers real‑time Bitcoin and Stacks data to developers and applications. Ensure high performance and reliability of APIs and data pipelines, optimizing endpoints, databases, and caching to handle increasing load with low latency and high uptime.

Collaborate cross‑functionally with product managers, frontend engineers, and Dev Ops to plan and implement new features end‑to‑end, delivering seamless developer experiences. Write and automate thorough tests (unit, integration, performance) using tools like k6 and Playwright, ensuring every release meets our quality standards. Participate in code reviews and architecture discussions, contributing to design decisions and championing engineering best practices. Monitor and troubleshoot production systems as needed, debugging issues across services and implementing fixes to maintain stability and security.

Work across the stack when necessary, primarily backend APIs, but occasionally frontend code or internal tools, to deliver complete, high‑quality solutions.

• 5+ years of software development experience building and shipping production applications, with a focus on backend systems or API‑driven services.
• Strong proficiency in Type Script/Node.js and/or Rust.
• Demonstrated experience designing, building, and scaling web APIs or microservices, including performance tuning, system design, and reliability.
• Hands‑on experience with relational databases (especially Postgre
  
  SQL), including data modeling, querying, and optimization.
• Familiarity with modern cloud and container infrastructure, such as Docker, Kubernetes, and GCP.
• Passion for code quality and automation, writing clean, maintainable code and building automated testing and CI/CD pipelines (e.g. Git Hub Actions).
• Excellent communication and collaboration skills, comfortable working in a remote, distributed team across time zones.
• Self‑driven and ownership‑minded, able to take initiative, manage projects end‑to‑end, and thrive in a fast‑paced environment.
• Highly autonomous and self‑driven, with strong ownership and a bias toward action.
• Thrives in ambiguity, adaptable, resourceful, and able to bring clarity through execution.
• Product‑minded engineering approach, capable of collaborating with product teams to define goals, shape the strategic direction of the Platform, and deliver developer experiences that scale.

• Blockchain/Web3 experience or interest.
• Familiarity with decentralized networks, or a keen…