Senior Software Developer

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.

INTRODUCTION
On the lookout for a Senior Backend Developer to join the Trainer experience development team with Trainerize powered by ABC Fitness Solutions (www.trainerize.com). This is an exciting opportunity to join a fast-growing technology company making waves in the fitness industry.

This is a Canada-based individual contributor role. You will spend your time building, shipping, and improving real product backend and APIs alongside web, mobile, product, and design partners.

RESPONSIBILITIES:
- Design, develop, test and document software for existing and new products
- Develop, maintain, and optimize backend services, with a focus on ASP.NET web applications
- Design and develop backend of our product, including Dotnet based RESTful API, SQL Server database
- Design, build, version, and optimize RESTful APIs with a focus on clear contracts, performance, security, and backwards compatibility
- Integrate with and consume third-party APIs reliably (auth, rate limits, retries, error handling)
- Use an agentic coding IDE (Cursor or similar) as part of your daily workflow to ship faster, while reviewing and verifying agent-generated code rather than accepting it blindly
- Collaborate with frontend web and mobile developers to design and deliver cohesive, high-quality features
- Collaborate with a team to design, develop and ship new features
- Work with DevOps to patch and release the product
- Work with designers and developers to provide feedback on design
- Review code and handle merge requests from other developers
- Identify and correct bottlenecks and fix bugs
- Help maintain code quality, organization, and automatization
- Work closely with the team to provide estimation and progress for the project
- Lead and coach Junior/Intermediate developers
- Actively identify and improve software development best practices and processes that make sense for the Development team
- Participate in a shared team responsibility to monitor and respond to critical issues, including system instabilities or feature regressions, ensuring rapid resolution and maintaining service reliability
QUALIFICATIONS:
- Bachelor's Degree in Computer Science or a related field
- Typically, 5+ years of .NET experience and/or other object-oriented programming languages
- Experience with Microsoft Visual Studio
- Familiar with C#, WebAPIs, MVC, ASP.NET
- Strong RESTful API experience: designing, building, versioning, and optimizing APIs for performance and reliability
- Habitual use of an agentic coding IDE (Cursor or similar) with sound judgment for reviewing and verifying AI-generated code
- 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
- Experience with the NoSQL database will be a plus
- Experience integrating high-traffic or third-party APIs
- Exposure to multi-tenant SaaS products
- General familiarity with a modern TypeScript / cloud-native SaaS stack is a plus, but not required

Compensation for this role will be determined based on a variety of factors, including relevant experience, qualifications, skills, geographic location, and market considerations. The anticipated compensation range for this position is -

WHAT’S IN IT FOR YOU:

• Purpose led company with a Values focused culture – Best Life, One Team, Growth Mindset
• Time Off – with our open PTO policy, we offer flexibility in how and when you take PTO!
• Days of Disconnect – once a quarter, we take a collective breather and enjoy a day off together around the globe. #oneteam
• Parental & Pawternity Leave – we offer leave for when your family grows by two feet or four paws!
• Best Life Perk – we are committed to meeting you wherever you are in your fitness journey with a quarterly reimbursement
• Medical/Dental/Vision coverage
• EAP – we get you help when you need it. Period.
• Premium Calm App – enjoy tranquility with a Calm App subscription for you and up to 4 dependents over the age of 16
• And more! – so many benefits we couldn’t even fit them all here!

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.

ABC’S COMMITMENT TO DIVERSITY, EQUALITY, BELONGING AND INCLUSION: 

ABC is an equal opportunity employer committed to diversity, equity, and inclusion. We strive to create a workplace where every employee, client, and partner feels valued, inspired, and empowered to reach their full potential. For us, inclusion isn’t just the right thing to do—it’s a business imperative. Learn more at abcfitness.com.

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

#LI-REMOTE