You'll join Grip Technologies Pvt. Ltd., a Daxko subsidiary, working on FitnessForce, the club management platform used by gyms and fitness businesses around the world.

About the role

FitnessForce runs the daily operations of gyms and fitness clubs globally, from member check-in to point-of-sale retail. As a senior backend developer on our core team, you'll own the services and APIs that keep this multi-tenant platform rapid, secure, and reliable at scale.

We build with AI as part of our everyday workflow. You'll use tools like Cursor to move faster, while staying fully accountable for the quality, security, and design of everything that ships.

What you'll do
Design, build, and maintain scalable, secure REST APIs in .NET Core that support our Angular web app and Flutter mobile app
Architect data models and optimize query performance in MySQL, keeping data isolated and available across a multi-tenant platform
Build and maintain event-driven services with Apache Kafka to keep data in sync across our integrated systems in real time
Lead the technical build-out of core features, including cross-club access, retail workflows, and global integrations
Use AI coding tools to speed up development, while owning the maintainability,



security, and architecture of everything you ship
Grow automated test coverage across backend services to keep releases secure and regression-free
Review code, unblock the backend team on hard problems, and set the standard for clean, maintainable engineering

What you'll bring
6 to 8 years of backend engineering experience, ideally in a SaaS product
Deep hands-on expertise in C# and .NET Core
Experience using AI coding assistants in production work, with the engineering fundamentals to review, refactor, and stand behind AI-generated code
Solid relational database skills, including schema design, transactions, and query optimization in MySQL
Experience building multi-tenant systems and working with event-streaming platforms like Kafka
A track record of building secure, well-versioned APIs and untangling complex business logic

Nice to have
Familiarity with Docker, container registries, and standard CI/CD pipelines
Experience in the fitness, club management, or membership software industry
Exposure to how backend APIs connect with Flutter and Angular front ends

📌 Senior Net Developer Mumbai
🏢 Daxko
📍 Mumbai