Lead Software Developer (.Net)

Join ABC Fitness and become part of a culture that’s as ambitious as it is authentic. Let’s transform the future of fitness - together!

Our Values

Best Life

We believe great work begins with great people. That’s why our culture is built on respect, trust, and belonging. We create an inclusive environment where every team member can bring their authentic self to work - because diverse perspectives drive innovation and meaningful impact.

Growth Mindset

We are doers, thinkers, and dreamers. At ABC Fitness, your growth is our investment. Through continuous learning, mentorship, and professional development opportunities, we empower you to reach new heights - personally and professionally.

One Team

From day one, you’ll be part of a team that collaborates, celebrates, and cares. We move fast, support one another, and have fun along the way. Because when you thrive, we all thrive.

ROLE INTRODUCTION

On the lookout for a Lead Backend Developer to join Trainerize powered by ABC Fitness Solutions (www.trainerize.com). ABC Fitness Solutions builds comprehensive, scalable technology and software designed to manage and grow fitness businesses of all sizes. We need a Lead Backend Developer to design APIs and data layers, improve performance and reliability, and grow the backend practice - including code review, standards, and mentoring.

You will lead through technical direction, influence, code quality, mentoring, and cross-functional partnership - not through people management.

If that vision excites you, this is where it gets built. You'll spend your days on the high-volume APIs that power fitness experiences for millions, in an environment where AI agents are part of how you think, build, and review. Every feature you ship and every standard you set helps prove that AI-native engineering isn't a side project here - it's how we build.

RESPONSIBILITIES:

Design, develop, test, and document software for existing and new products

Build, maintain, and optimize .NET backend services (ASP.NET Core, REST APIs) and related data access

Own and evolve the backend architecture for our products, including RESTful APIs and Microsoft SQL Server (schema, queries, performance)

Own API strategy: set standards for design, versioning, security, and cross-team contracts, including third-party integration surfaces

Establish and uphold team practices and guardrails for agentic-IDE development (Cursor or similar), including review standards for agent-generated code

Partner with frontend (web and mobile), product, and design to define APIs and deliver cohesive, high-quality features

Work with DevOps on builds, releases, patching, and operational readiness

Review code, handle merge requests, and help keep code quality, structure, and automation (testing, CI/CD) at a high bar

Identify bottlenecks, debug production issues, and improve reliability and performance

Provide technical estimates and communicate progress and risks clearly

Lead and coach junior and intermediate developers; raise the bar through pairing and feedback

Improve engineering practices and processes (testing, observability, release discipline) in ways that fit the team

Share ownership of production health: monitor, respond to critical incidents, and drive fixes for instability or regressions

QUALIFICATIONS:

All applicants must be able to work from our Hyderabad office 2-3x a week

Bachelor's degree in computer science, software engineering, or related field (or equivalent industry experience)

6+ years of .NET experience and/or other object-oriented programming languages

Experience with Microsoft Visual Studio

Familiar with C#, WebAPIs, MVC, ASP.NET

Familiarity with a modern TypeScript / cloud-native SaaS stack

Deep RESTful API experience: owning API design, versioning, security, performance, and cross-team contracts at scale

Habitual use of an agentic coding IDE (Cursor or similar) and a track record of setting review standards for AI-generated code across a team

In-depth understanding of JavaScript programming and familiar with ES6

Work effectively in a cloud-based environment; experience with AWS is a strong plus

Familiar with object-oriented design patterns

Familiar with RESTful APIs

Experience with MS SQL Server and T-SQL language

Understanding of SQL best practices and methodologies and experience investigating and solving SQL performance issues

Proficient understanding of code versioning tools such as Git and the associated best practices

Familiarity with Agile methodologies and experience with leading a scrum team

AND IT’S GREAT TO HAVE:

Prior exposure to fitness/wellness products, multi-tenant SaaS, high-traffic APIs, or cloud-native tooling (containers, observability) - tell us what you've built or scaled

Experience designing and operating third-party API integrations at scale

General familiarity with a modern TypeScript / cloud-native SaaS stack is a plus

WHAT’S IN IT FOR YOU:

Purpose led company with a Values focused culture – Best Life, One Team, Growth Mindset

Time Off – competitive PTO plans with 15 Earned accrued leave, 12 days Sick leave, and 12 days Casual leave per year

11 Holidays plus 4 Days of Disconnect – once a quarter, we take a collective breather and enjoy a day off together around the globe. #oneteam

Group Mediclaim insurance coverage of INR 500,000 for employee + spouse, 2 kids, and parents or parent-in-laws, and including EAP counseling

Life Insurance and Personal Accident Insurance

Best Life Perk – we are committed to meeting you wherever you are in your fitness journey with a quarterly reimbursement

Premium Calm App – enjoy tranquility with a Calm App subscription for you and up to 4 dependents over the age of 16

Support for working women with financial aid towards crèche facility, ensuring a safe and nurturing environment for their little ones while they focus on their careers

At ABC Fitness, we don’t just build technology - we build communities and transform lives. Your work matters here, your growth is supported, and your voice is heard. We welcome diverse talent and encourage you to apply, even if you don’t meet every requirement.

About ABC Fitness

ABC Fitness is the #1 software provider for fitness businesses of any size, all around the world. Supporting 30K clubs, 650K coaches, 40M members, and processing more than $12B in payments every year, ABC Fitness provides scalable, data-driven solutions to simplify club management and engage members and clients.

From personal trainers, boutique studios, and gyms, to international franchise health clubs, ABC Fitness will move your business forward through technology and industry insights. Innovation is at the center of everything we do, across ABC Glofox, ABC Ignite, ABC Trainerize, and ABC Evo. Let's make your fitness vision a seamless reality, together. Learn more at abcfitness.com

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