Full-Stack Developer, AI & Integrations (Hybrid)

FinnlySport is a fast-growing recreation management SaaS platform serving ice arenas, sportsplexes, and park & rec facilities across North America. With ~300 customers and a product suite spanning facility management, registrations, memberships, POS, league scheduling, digital displays, and our FinnlyConnect mobile app, we're building the infrastructure that powers complex recreation facilities. This is a new role, created specifically to embed AI deeply into our product and operations. You'll work across the full stack, spanning databases, REST API development, and AI-powered features inside the FinnlySport product, reporting directly to the CTO. If you want ownership, breadth, and the chance to define how AI gets built at a product-led SaaS company, this is it.

What You'll Do

• Build AI-powered product features: from conceptualization through production: intelligent scheduling, automated reporting, natural language facility search, and predictive revenue tools for our operator customers.
• Own REST API design and integrations: architect and maintain clean, well-documented APIs and third-party connections with payment processors, scheduling platforms, and other tools in our customers' stacks.
• Own database architecture and performance: design schemas, write complex queries, optimize performance, and maintain data integrity across our SQL Server environment as we scale.
• Develop and maintain internal AI workflows: including Claude-based automations that improve speed and quality across our sales, support, and operations teams.
• Evaluate and implement LLM tooling: stay current with the fast-moving AI landscape and make pragmatic recommendations on what to build vs. buy.
• Collaborate with the CTO and product team: on architecture decisions and roadmap priorities. This role has real input into what gets built.
• Write clean, production-grade C# and Blazor code: with an eye toward maintainability as we scale. Our stack is Microsoft throughout: Blazor, C#, and SQL Server.
• Other relevant projects to enhance our product

Requirements ▸ 4+ years full-stack development experience ▸ Production experience integrating LLMs / AI APIs ▸ Proficiency in C# and the .NET ecosystem ▸ REST API design, documentation, and versioning experience ▸ Experience with Microsoft Blazor or comparable component-based UI ▸ Comfort with ambiguity and greenfield ownership ▸ Deep SQL Server expertise: schema design, complex queries, indexing, and performance tuning ▸ Based in or willing to relocate to Minneapolis area Nice to Have ▸ Experience shipping AI features into a .NET / Blazor product ▸ Recreation, sports, or facility industry exposure ▸ Familiarity with Anthropic Claude API or MCP ▸ Early-stage or growth-stage startup experience ▸ Familiarity with payment processor or third-party SaaS APIs ▸ Azure or Microsoft cloud infrastructure experience What We'll Offer

• Competitive salary and benefits package
• Hybrid work environment
• Opportunities for professional growth and development
• Collaborative and innovative team culture
• Health, Dental, Life and Vision
• Paid Time Off
• Holiday Pay

If you are passionate about building exceptional customer experiences and want to be part of an innovative sports technology company, we encourage you to apply! Job Type: Full-time Pay: $80,000.00 per year

Benefits

• Dental insurance
• Health insurance
• Paid holidays
• Paid time off
• Vision insurance
• Work from home

Education:

• Bachelor's (Preferred)

Experience:

• Full-stack development: 4 years (Required)

Ability to Commute:

• Minneapolis, MN 55413 (Required)

Work Location: Hybrid remote in Minneapolis, MN 55413 Apply tot his job Apply To this Job