Senior Software Engineer (Data Platform)

Teamworks; United States; On-site; USD 140,000 - 180,000; Full time

Job summary

Teamworks is seeking a Senior Software Engineer on the Data Platform team to strengthen performance integrations powering our Athlete Management System. You will own the reliability and observability of 150 RESTful vendor integrations from wearables, GPS devices, and IoT hardware, starting with the C# .NET platform.

You will lead the migration of integrations to Python and our lakehouse, balancing today’s reliability with tomorrow’s data pipelines.

Qualifications

• 7+ years of software engineering experience with mastery of C# and .NET.
• Experience designing scalable distributed architectures on AWS, with Terraform fluency.
• Experience building/resting API integrations across systems, with OAuth 2.0.
• Ability to communicate with third-party vendors and ship permanent fixes.
• US citizenship and US-based residency required to support Tactical and military customers.

Responsibilities

• Own the reliability, resilience, and observability of our existing performance vendor integrations, including day-to-day and on-call support for data gaps and mismatches.
• Maintain and improve our C# .NET integrations against vendor IoT APIs, and independently drive investigations with third‑party vendor support teams when the problem originates on their side.
• Raise the bar on how well our team understands these integrations through documentation and knowledge sharing that outlasts any one engineer.
• Lead architecture and implementation for progressively porting our C# .NET integrations to Python and writing their data into our lakehouse.
• Strengthen the architecture and security posture of our integrations so we can deploy them into military IL4 and IL5 environments alongside our Tactical customers.

Skills

C# & .NET

AWS

Terraform

RESTful APIs

Vendor communication

Security architecture

Tools

OAuth 2.0

APIs (integration)

Job description

We're hiring a Senior Software Engineer to strengthen the foundation of the performance integrations that power our Athlete Management System (AMS), and to help modernize them onto a new lakehouse architecture. This role sits on our Data Platform team and owns integrations that feed our industry leading AMS product and our new data platform. I'm Scott Roberts, Senior Manager, Engineering at Teamworks, and I lead this team.

Our AMS ingests athlete performance data through roughly 150 RESTful vendor integrations, both webhook and polling based, pulling from wearables, force plates, GPS trackers, and other IoT hardware. As our product complexity and customer base have grown, so has the surface area of those integrations, and they need a senior engineer who will treat them as a first‑class system rather than plumbing. Your initial focus will be learning and strengthening this existing C# .NET integration platform. Over time, you'll help lead the migration of these integrations to Python and our modern lakehouse, which will become the hub for hundreds of performance data pipelines across Teamworks products. This role sits at the intersection of both: keeping today's integrations reliable while designing how they move onto tomorrow's architecture.

The Role

• Own the reliability, resilience, and observability of our existing performance vendor integrations, including day-to-day and on-call support for data gaps and mismatches

• Maintain and improve our C# .NET integrations against vendor IoT APIs, and independently drive investigations with third‑party vendor support teams when the problem originates on their side

• Raise the bar on how well our team understands these integrations through documentation and knowledge sharing that outlasts any one engineer

• Lead architecture and implementation for progressively porting our C# .NET integrations to Python and writing their data into our lakehouse

• Strengthen the architecture and security posture of our integrations so we can deploy them into military IL4 and IL5 environments alongside our Tactical customers

What You Must Bring

• 7+ years of software engineering experience with genuine mastery of C# and .NET, since that is what our existing integrations are written in and you will be working in them from day one

• Demonstrated experience designing and building highly scalable distributed architectures on AWS, with Terraform fluency

• Experience building or maintaining RESTful API integrations across different systems, including working fluency with the authentication protocols vendors actually use, OAuth 2.0 and the Authorization Code grant in particular

• Comfort independently managing technical communication with third-party vendors when their API is the source of a problem, and a track record of shipping permanent fixes and improving the operational health of systems you inherit

• US citizenship and US-based residency, required to support our Tactical and military customers

Even Better If

• You are well‑versed in applying modern AI techniques across the software development lifecycle, we work this way and expect it to compound

• You are strong in Python, or ready to be, since our integrations are progressively moving there

• You have worked with IoT, wearable, or hardware‑adjacent APIs where data quality issues originate outside your own system

Why This Role

The integrations you'll own are how performance data actually reaches coaches, sports scientists, and military readiness staff, so the reliability work here has a direct line to people making decisions about athletes on the field and personnel in the field. You'll also help shape a lakehouse that will bring hundreds of performance pipelines together into a data asset that does not exist anywhere else in this industry, one that will feed customer analytics, ML models, and AI agents for years. If you want the depth of a complex existing system and the leverage of designing what replaces it, this is a rare combination.

This role is not eligible for sponsorship at this time.

About Teamworks

We're the Operating System for Sports, powering 7,000+ organizations worldwide, from collegiate programs to every major pro league. Founded in 2006, we've evolved from a messaging tool for college football into the leading sports tech platform, with 600+ global teammates building the future of sports tech. Our solutions span Personnel, Coaching, Performance, Operations, and Intelligence - helping teams recruit smarter, train better, stay compliant, and win. Teamworks is an equal opportunity employer - if you live our core values every day and are honest, hardworking, humble, committed, innovative, and an all‑around exceptional person, you'll thrive at Teamworks. We are committed to building a diverse and inclusive workforce and take affirmative action to not discriminate based on race, religion, color, national origin, ancestry, physical disability, mental disability, medical condition, genetic information, marital status, sex, gender, gender identity, gender expression, age, sexual orientation, veteran or military status, or any other legally protected characteristics. This policy applies to all employment practices within our organization, including but not limited to recruiting, hiring, promotion, termination, compensation, benefits, and training. Teamworks is committed to providing reasonable accommodations for candidates with disabilities who need assistance during the hiring process. To request a reasonable accommodation, please email [e-mail].