Team Lead, API Integration Engineer

Join ABC Fitness, the leading technology provider for the fitness industry

Job Description

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.

The Team Lead, API Integration Engineer will provide technical leadership and strategic guidance for ABC Fitness Solutions' API Integrations team. This role will drive the design, development, and optimization of integrations across ABC's product ecosystem, including Glofox, Ignite, Trainerize, Commerce, and Gymsales. The Lead Engineer will work closely with cross-functional teams, external partners, and global customers to ensure seamless, scalable, and secure integration experiences. The Lead Engineer will also be an advocate for standards and drive adoption of industry standard practices across the entire ABC ecosystem.

Key Responsibilities

• Lead and mentor a team of API Integration Engineers, fostering collaboration, professional growth, and technical excellence.
• Architect, develop, and maintain API- and Webhook-based integrations across ABC's platforms and third-party systems, ensuring performance, reliability, and scalability.
• Serve as the escalation point for complex integration issues and provide expert technical guidance to internal and external stakeholders
• Collaborate with global customers and integration partners to deliver robust API and Webhook solutions tailored to their business needs.
• Oversee the implementation and maintenance of authentication protocols and secure data transfer mechanisms (OAuth 2.0, JWT, API keys, Webhook signing/validation).
• Evaluate and introduce new tools and processes for API and Webhook testing, automation, and monitoring to enhance efficiency and quality.
• Partner with Product and Platform Engineering teams to identify API and Webhook enhancements, define integration roadmaps, and influence strategic initiatives.
• Ensure documentation, best practices, and technical standards are maintained and shared across the team.
• Champion continuous improvement initiatives, driving innovation within the API and Webhook ecosystems.
• Represent the API Integration team in cross-departmental meetings and technical planning sessions.

Required Knowledge, Skills, and Experience

• Bachelor's or Master's degree in Computer Science, Software Engineering, or related field.
• 7–10 years of experience in API and Webhook development, integration, or platform engineering roles, including at least 2 years in a leadership capacity.
• Advanced understanding of RESTful APIs, Webhook architectures, authentication protocols, and error handling best practices.
• Strong experience using API testing and automation tools (Postman, Newman, or similar frameworks).
• Demonstrated success in managing customer-facing API and Webhook integrations with global clients or enterprise systems.
• Familiarity with modern integration and event-driven technologies such as Kafka, AWS SNS/SQS, and API management tools (Gravitee, Kong, Apigee, or AWS API Gateway).
• Chargebee or similar SaaS billing integration experience preferred.
• Proven leadership skills with the ability to coach and motivate engineers across multiple geographies.
• Excellent written and spoken English skills with the ability to communicate technical concepts clearly to both technical and non-technical audiences. Strong problem-solving, analytical, and decision-making skills.

Core Competencies (Aligned with ABC Values)

One Team

• Leads collaboration efforts across global engineering, product, and customer success teams.
• Fosters a culture of inclusivity, transparency, and partnership across regions and functions.

Growth Mindset

• Demonstrates curiosity and continuous improvement by championing innovation in integration technology and practices.
• Mentors others to embrace experimentation and learning from challenges to drive excellence.

Best Life

• Promotes balance, well-being, and respect within the team.
• Leads with empathy and integrity, ensuring a supportive and healthy work environment.

Supervisory Responsibility

• This role leads a small team of API Integration Engineers and may oversee contractors or partner technical contributors as needed.

Additional Information

• Occasional flexible working hours required to support global integration partners and customers.
• Expected to collaborate frequently across multiple time zones.
• This role operates within ABC's global remote-first framework.

WHAT WE OFFER YOU:

A purpose-driven company, committed to helping change people's lives through technology, with a value-driven culture focused on Better Life (#bestlife), One Team (#oneteam), and Growth Mindset (#growthmindset).

• Home office subsidy – you might need help with your internet bills;
• Disconnect Days – once per quarter, we take a collective break and enjoy a day off together around the world. #oneteam
• Free access to LinkedIn Learning;
• Partnership with Dell and Microsoft Office (up to 30% discount on PCs, electronics, and accessories);
• Partnerships with universities: Mackenzie, FIAP, and Fundação Vanzolini;
• EAP – we offer psychological, legal, and financial assistance whenever you need it;
• Health and Dental Insurance
• Inclusion in the corporate life insurance, at no additional cost.

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

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

If you like wild growth and working with happy, enthusiastic over-achievers, you'll enjoy your career with us