Senior Software Engineer (Data Platform)

Responsibilities

• Own the reliability, resilience, observability, and on-call support of approximately 150 performance-data vendor integrations.
• Maintain and improve C#/.NET integrations with vendor IoT APIs and independently investigate vendor-originated issues.
• Lead architecture and implementation for migrating C#/.NET integrations to Python and writing data to the lakehouse.
• Design and ship permanent fixes that improve the operational health of inherited systems.
• Improve integration documentation and knowledge sharing across the team.
• Strengthen the architecture and security posture of integrations for military IL4 and IL5 environments.
• Communicate directly with third-party vendors when their APIs cause integration problems.

Requirements

• 7+ years of software engineering experience with strong mastery of C# and .NET.
• Experience designing and building highly scalable distributed architectures on AWS.
• Fluency with Terraform.
• Experience building or maintaining RESTful API integrations across multiple systems.
• Working knowledge of vendor authentication protocols, especially OAuth 2.0 and the Authorization Code grant.
• Ability to manage technical communication with third-party vendors and deliver permanent system fixes.
• US citizenship and US-based residency.
• Python expertise or willingness to develop strong Python skills is preferred.
• Experience with IoT, wearable, or hardware-adjacent APIs is preferred.
• Experience applying modern AI techniques across the software development lifecycle is preferred.

Benefits

• Work focused on performance data used by coaches, sports scientists, and military readiness staff.
• Opportunity to shape a lakehouse supporting hundreds of performance pipelines, analytics, machine-learning models, and AI agents.
• The role supports Teamworks’ sports technology platform and military Tactical customers.
• This role is not eligible for sponsorship at this time.
• US-based residency is required.