Principal Site Reliability Engineer

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. RESPONSIBILITIES: Partner with software development teams to build reliable, scalable, secure, and cloud-native services. Define, implement, and improve Service Level Indicators and Service Level Objectives that connect platform reliability to customer and business impact. Define and influence scalable architecture patterns across engineering teams, helping ensure systems are resilient, observable, secure, and supportable in production. Establish best practices for availability, reliability, scalability, performance, observability, incident response, and operational readiness. Design and support deployment pipelines and release practices that help teams ship safely and confidently. Integrate security and reliability practices into the software development lifecycle, including proactive identification of application and infrastructure risk. Lead production incident response, root cause analysis, post-incident learning, and follow-through on reliability improvements. Mentor engineers and foster a culture of learning, continuous improvement, knowledge sharing, and operational excellence. QUALIFICATIONS: 8+ years of hands-on experience in Site Reliability Engineering, DevOps, cloud infrastructure, platform engineering, software engineering, or related technical discipline. Demonstrated experience improving reliability, scalability, availability, deployment safety, and operational performance across production systems. Experience influencing architecture, technical standards, and reliability practices across multiple engineering teams. Strong programming ability in at least one language such as Go, Python, Node.js, or Java. Experience operating cloud infrastructure in AWS environments, including services such as ECS, Fargate, and Lambda. Hands-on experience with infrastructure as code, preferably Terraform, and modern CI/CD tools such as GitHub Actions, CircleCI, Jenkins, or similar. Experience with observability, monitoring, and incident management tools such as , New Relic, CloudWatch, Grafana, or similar. Working knowledge of relational and NoSQL databases such as Aurora, MySQL, PostgreSQL, MongoDB, DynamoDB, Redshift, SQL Server, or similar. Ability to use AI-assisted engineering tools responsibly to improve development workflows, debugging, documentation, operational efficiency, and system design support while maintaining accountability for quality, security, and reliability. Strong collaboration skills with the ability to influence engineering teams, communicate technical tradeoffs clearly, and guide improvements across a distributed organization. Willingness to participate in a rotating on-call schedule and support teams across multiple time zones when needed. AND IT’S GREAT TO HAVE Experience selecting, evaluating, or operating agentic services or AI-enabled tools for secure and reliable production use. Experience building scalable systems using SaaS services, APIs, automation, and service-oriented architectures. Experience improving developer productivity through platform tooling, paved roads, self-service workflows, or automation. Experience with security-minded engineering practices, including secure SDLC, secrets management, least-privilege access, or compliance-oriented operational controls. Experience mentoring engineers or leading cross-team reliability initiatives without formal people management authority. WHAT SUCCESS LOOKS LIKE Reliability practices are clearer, more consistent, and more measurable across Engineering teams. Architecture and system design decisions increasingly reflect strong reliability, observability, scalability, security, and operational-readiness principles. Production incidents decrease in frequency, severity, or recurrence through stronger prevention, observability, and post-incident learning. Engineering teams can deploy changes more safely and confidently through improved CI/CD, automation, and operational guardrails. Service Level Objectives are adopted and used to guide prioritization, risk decisions, and customer-impact conversations. Cloud infrastructure, systems, and operational workflows become more scalable, secure, observable, and supportable. Teams across ABC view this role as a trusted technical partner for reliability, resilience, and operational excellence. 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 - zł220,000 - zł280,000 PLN- annually. In addition to base compensation, eligible employees may be offered other forms of compensation, such as bonuses, commissions, equity, or other incentive programs, where applicable. Compensation and benefits may vary by location and are subject to applicable legal, business, and market requirements. 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, you pick when you want time off when it’s best for you! 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! Fitness Perk – we are committed to meeting you wherever you are in your fitness journey with a quarterly reimbursement. Discounts – access to discounts with our partners, such as Dell, Microsoft & many more. Medical/Dental/Vision coverage. EAP – we get you help when you need it. Period. Calm App +4 – 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 . 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 #LI-REMOTE