Principal Software Developer

ABC Fitness

Poland

On-site

PLN 370,000 - 378,000

Full time

24 hours ago
Be an early applicant
Application generator

An application made for this job — a tailored resume and cover letter that speak straight to the posting.

Get past ATS filters

Benefits offered by this job

Open PTO policy
Days of Disconnect
Parental & Pawternity Leave
Fitness reimbursement
Discounts with partners
Medical/Dental/Vision coverage
Employee Assistance Program
Calm App subscription
Many more benefits

Job summary

ABC Fitness is hiring a Principal Software Developer to set technical direction for CRM across the ABC Glofox platform. You will lead architecture, oversee data-intensive systems, and partner with CRM Ops and Connect to deliver scalable solutions used by multiple squads.

You will mentor engineers, drive reliability, and shape AI usage across delivery, while guiding platform migrations and integrations with emphasis on operability and security.

Qualifications

  • Bachelor’s degree in Computer Science or relevant field exp. preferred
  • 8+ years of software engineering experience, with proven staff/principal-level technical impact required
  • Deep systems design experience for distributed, data-intensive products that affect multiple teams and services
  • Strong judgment on architecture trade-offs, production readiness, and long‑term maintainability
  • Solid understanding of the practical application of agile development methods in an Agile/Lean/Continuous Delivery environment
  • Knowledge of modern Quality and Testing principles
  • Strong written and verbal communication; comfortable influencing technical direction across teams, document architectural decisions and align senior engineering and product stakeholders
  • Comfortable learning new technologies and systems
  • Hands‑on experience designing and delivering large data/platform migrations (tooling, cutover, rollback, and operability under dual‑run)
  • Experience establishing engineering standards across multiple squads

Responsibilities

  • Define and drive high-leverage architecture, technical strategy and engineering standards for XLerate across multiple CRM-space teams
  • Own architecture, design patterns and lead design of large-scale, data intensive systems complex systems spanning segmentation, CRM workflows, and shared platform paths used by partner squads
  • Raise and evolve engineering standards for reliability, performance, observability, and operability at scale
  • Guide technical alignment with Leads, Product, and teams such as CRM Ops and Connect to align technical bets with XLerate outcomes
  • Mentor Engineers and technical leads across the CRM domain; unblock the hardest technical problems through design reviews and hands‑on guidance
  • Lead diagnosis and resolution of the highest‑severity, cross‑team Customer Incidents in the CRM space - coordinating CRM Ops, Connect, and partner squads, driving the technical fix, and leaving the system more operable than you found it
  • Shape and set practical standards for how AI is used across XLerate delivery and product surfaces: raise the bar for safe, evidence‑based use of AI in engineering (and, where relevant, member/studio‑facing CRM workflows), without treating it as a side project.
  • Identify, prioritize and land platform improvements that reduce systemic risk and accelerate delivery across the CRM domain
  • Strengthen engineering execution through CI/CD, production readiness, observability, continuous improvement and through ways of working
  • Set technical direction for large-scale platform migrations and integrations (including Gymsales → Glofox and cross-platform ABC integrations), including migration tooling, data cutover, and dual‑run / coexistence strategies
  • Shape webhook and third‑party integration architecture that partner products and external systems rely on

Skills

Distributed systems
Data-intensive architectures
Leadership & mentoring
CI/CD & DevOps
Observability & reliability
Architectural decisions
Agile/SDLC
AI in software delivery

Education

Bachelor’s degree in Computer Science or relevant field

Tools

Golang
Java
MySQL
MongoDB

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.

This is a Principal Software Developer role across the CRM space on the ABC Glofox platform, setting technical direction for shared CRM capabilities used by multiple engineering teams including CRM Ops (CRM operations and segmentation: tags, audiences, tasks, and member filtering) and Connect (automations and communications), and providing technical partnering with other squads as needed.

You’ll help set technical direction beyond any single feature team - raising the bar for architecture, reliability, and operability across CRM data paths and product delivery - while staying close to the systems that serve ~130M active members and turn engagement into measurable outcomes for studios.

RESPONSIBILITIES:
  • Define and drive high-leverage architecture, technical strategy and engineering standards for XLerate across multiple CRM-space teams
  • Own architecture, design patterns and lead design of large-scale, data intensive systems complex systems spanning segmentation, CRM workflows, and shared platform paths used by partner squads
  • Raise and evolve engineering standards for reliability, performance, observability, and operability at scale
  • Guide technical alignment with Leads, Product, and teams such as CRM Ops and Connect to align technical bets with XLerate outcomes
  • Mentor Engineers and technical leads across the CRM domain; unblock the hardest technical problems through design reviews and hands‑on guidance
  • Lead diagnosis and resolution of the highest‑severity, cross‑team Customer Incidents in the CRM space - coordinating CRM Ops, Connect, and partner squads, driving the technical fix, and leaving the system more operable than you found it
  • Shape and set practical standards for how AI is used across XLerate delivery and product surfaces: raise the bar for safe, evidence‑based use of AI in engineering (and, where relevant, member/studio‑facing CRM workflows), without treating it as a side project.
  • Identify, prioritize and land platform improvements that reduce systemic risk and accelerate delivery across the CRM domain
  • Strengthen engineering execution through CI/CD, production readiness, observability, continuous improvement and through ways of working
  • Set technical direction for large-scale platform migrations and integrations (including Gymsales → Glofox and cross-platform ABC integrations), including migration tooling, data cutover, and dual‑run / coexistence strategies
  • Shape webhook and third‑party integration architecture that partner products and external systems rely on
QUALIFICATIONS:
  • Bachelor’s degree in Computer Science or relevant field exp. preferred
  • 8+ years of software engineering experience, with proven staff/principal-level technical impact required
  • Deep systems design experience for distributed, data-intensive products that affect multiple teams and services
  • Strong judgment on architecture trade-offs, production readiness, and long‑term maintainability
  • Solid understanding of the practical application of agile development methods in an Agile/Lean/Continuous Delivery environment
  • Knowledge of modern Quality and Testing principles
  • Strong written and verbal communication; comfortable influencing technical direction across teams, document architectural decisions and align senior engineering and product stakeholders
  • Comfortable learning new technologies and systems
  • Hands‑on experience designing and delivering large data/platform migrations (tooling, cutover, rollback, and operability under dual‑run)
  • Experience establishing engineering standards across multiple squads
AND IT’S GREAT TO HAVE:
  • Experience with Golang and/or Java services at scale
  • Deep experience with large MySQL / relational data platforms
  • Experience with no‑SQL DBs (e.g. MongoDB)
  • Prior CRM, marketing‑tech, or audience/segmentation domain experience
  • Experience with query federation / distributed querying systems
  • Track record leading complex, multi‑team incident or production‑fix work (not only in‑squad bugs)
  • Practical experience applying AI in software delivery or CRM/marketing‑tech products, with judgment on quality, privacy, and operability

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 370,000.00 - 378,000.00 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 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

Get your free, confidential resume review.
or drag and drop your file here.
Similar jobs

Similar jobs worth comparing

Lead Software Developer
Lead Software Developer

ABC Fitness • Poland

On-site
PLN 265,000 - 275,000
Open PTO policy
Days of Disconnect
Parental & Pawternity Leave
+5
Lead Software Developer
Lead Software Developer

abcfinancial • Poland

On-site
PLN 265,000 - 275,000
Open PTO
Days of Disconnect
Parental & Pawternity Leave
+5
Senior Talent Acquisition Partner - Poland
Senior Talent Acquisition Partner - Poland

ABC Financial • Poland

On-site
PLN 108,000 - 132,000
Open PTO policy
Parental & Pawternity Leave
Fitness perk
Director of Product, API & AI Orchestration
Director of Product, API & AI Orchestration

ABC Financial • Warszawa

On-site
PLN 530,000 - 540,000
Open PTO
Days of Disconnect
Parental & Pawternity Leave
+2
Principal Software Developer
Principal Software Developer

abcfinancial • Poland

On-site
PLN 300,000 - 420,000
Principal Software Architect, CRM Platform
Principal Software Architect, CRM Platform

abcfinancial • Poland

On-site
PLN 300,000 - 420,000
Principal CRM Platform Architect - Scale & Reliability
Principal CRM Platform Architect - Scale & Reliability

ABC Fitness • Poland

On-site
PLN 370,000 - 378,000
Open PTO policy
Days of Disconnect
Parental & Pawternity Leave
+6
Lead Backend Engineer - Golang | CRM Ops Growth
Lead Backend Engineer - Golang | CRM Ops Growth

abcfinancial • Poland

On-site
PLN 265,000 - 275,000
Open PTO
Days of Disconnect
Parental & Pawternity Leave
+5
Senior Go Backend Lead for CRM Ops Platform
Senior Go Backend Lead for CRM Ops Platform

ABC Fitness • Poland

On-site
PLN 265,000 - 275,000
Open PTO policy
Days of Disconnect
Parental & Pawternity Leave
+5
Senior Backend Tech Lead — Golang, MySQL & CRM Ops
Senior Backend Tech Lead — Golang, MySQL & CRM Ops

ABC Financial • Poland

On-site
PLN 265,000 - 275,000
Open PTO
Parental & Pawternity Leave
Fitness Perk
+3