Senior Software Engineer - Transaction Management

About the role

Turnkey is seeking a senior software engineer to join its Transaction Management team. You will design and implement core infrastructure that parses, validates, and broadcasts transactions across multiple blockchain protocols, primarily using Go.

Key responsibilities

• Design and build transaction parsing, validation, and broadcasting infrastructure for diverse blockchain protocols.
• Develop and maintain protocol‑specific libraries and abstractions that power Turnkey’s transaction management layer.
• Collaborate across product, security, and operations teams to deliver core product capabilities.
• Write internal specifications, external developer documentation, and technical whitepapers.
• Design and implement new product features end‑to‑end based on customer and ecosystem needs.
• Help scale a world‑class engineering team and define robust deployment processes.

Required profile

• 5+ years of production engineering experience.
• Strong Go (Golang) development skills.
• Deep, hands‑on familiarity with crypto protocols; EVM fluency required, broader blockchain knowledge a plus.
• Experience with cloud platforms such as AWS or GCP.
• Understanding of modern application architectures and large‑scale, mission‑critical infrastructure.
• Prior experience building scaled crypto products.
• A healthy amount of security‑focused paranoia.

Required skills

• Go / Golang
• EVM and other blockchain protocol development
• AWS, GCP or similar cloud services
• Large‑scale infrastructure design and operation
• Cryptography and secure computing environments (TEEs, HSMs)
• Threshold signing systems and async workflow orchestration