fatsecret Tech Stack

Weight loss and nutrition platform with API, clinic, and AI-powered features

Wellness and Fitness Services Melbourne, Victoria 11–50 employees Founded 2006 Privately Held

Fatsecret operates a consumer health platform spanning mobile apps, a nutrition database API, and a medically supervised clinic in Australia. The tech stack reveals a company in active GenAI integration—OpenAI, Claude, Gemini, and LangGraph appear alongside production work on AI agents and LLM enterprise systems—while pain points around model accuracy and hallucination detection signal they're moving beyond proof-of-concept. The small, engineering-heavy team (4 engineers, 1 marketer) hiring at mid-level suggests focused execution on AI features and user acquisition rather than broad hiring sprawl.

Tech Stack 24 technologies

Core StackC# MySQL SQL Server AWS JavaScript OpenAI Python Postman Google Ads Google Analytics Terraform iOS Android NET Core ASP.NET MVC HTML CSS Claude Webflow Azure GCP AWS Bedrock Gemini LangGraph

What fatsecret Is Building

◆Challenges

Model accuracy
Ai safety
Hallucination detection
Increase organic search traffic
Increase qualified clinic sign-ups
Increase installs
Automating complex workflows
Monitoring ai system performance

▲Active Projects

Golden dataset creation
Prompt engineering qa
Batch test automation
Seo and google ads acquisition
Aso testing cadence
Clinic conversion experiments
Production-ready genai tools
Ai agents for operational systems
Llm integration with enterprise systems

Hiring Activity

Accelerating5 roles · 2 in 30d

Department

Engineering

Marketing

Seniority

Mid

Manager

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About fatsecret

Fatsecret combines a free iOS/Android calorie-tracking app with a nutrition database of 2.3M verified foods and an API powering third-party health apps. The company also operates fatsecret Clinic, offering medically supervised weight loss programs (currently Australia-only) with GP oversight and dietitian coaching. Built on .NET Core and AWS, the platform serves millions of users globally. Current priorities include clinic conversion experiments, app install growth through SEO and ASO, and operationalizing GenAI tools—particularly AI agents for workflow automation and LLM integration with enterprise health systems.

HeadquartersMelbourne, Victoria

Company Size11–50 employees

Founded2006

Hiring MarketsAustralia

Frequently Asked Questions

What tech stack does fatsecret use?

iOS, Android, C#, .NET Core, ASP.NET MVC, MySQL, SQL Server, AWS, Azure, GCP, plus OpenAI, Claude, Gemini, and LangGraph for AI features.

Does fatsecret use large language models?

Yes. Active projects include prompt engineering QA, production-ready GenAI tools, AI agents for operational systems, and LLM integration with enterprise systems. Currently using OpenAI, Claude, and Gemini.