{"id":3992100,"url":"https://alion.io/job/abc-fitness-principal-software-developer-2","title":"Principal Software Developer","company":{"id":19166,"name":"ABC Fitness","domain":"abcfitness.com","url":"https://alion.io/company/abcfitness","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"lead","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Canada"],"countries":["CA"],"hiring_countries":["CA"],"hiring_countries_total":1,"salary":{"min":136100,"max":147800,"currency":"CAD","period":"year","gross":null,"usd_annual":104605},"salary_estimate":null,"experience_years_min":6,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agentic Workflows","optional":false},{"name":"AI Agents","optional":false},{"name":"Apache Kafka","optional":false},{"name":"AWS","optional":false},{"name":"CI/CD","optional":false},{"name":"Function Calling","optional":false},{"name":"Java","optional":false},{"name":"Kubernetes","optional":false},{"name":"LLM","optional":false},{"name":"LLM Guardrails","optional":false},{"name":"Model Context Protocol","optional":false},{"name":"Prompt Engineering","optional":false},{"name":"RAG","optional":false},{"name":"Rest API","optional":false},{"name":"Shift-Left Security","optional":false},{"name":"Spring Boot","optional":false},{"name":"SQL","optional":false},{"name":"AWS Bedrock","optional":true},{"name":"Docker","optional":true},{"name":"Grafana","optional":true},{"name":"Kong","optional":true},{"name":"LangChain","optional":true},{"name":"LangGraph","optional":true},{"name":"OpenTelemetry","optional":true},{"name":"Redis","optional":true}],"status":"live","first_seen_at":"2026-11-09T23:49:11Z","employer_posted_date":"2026-11-09","last_verified_at":"2026-11-09T23:49:11Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"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!\nOur Values\nBest Life\nWe 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.\nGrowth Mindset\nWe 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.\nOne Team\nFrom 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.\nRESPONSIBILITIES:\nSystem Design & Architecture\nLead the architecture and design of scalable, highly available, fault-tolerant distributed systems using Java, Spring Boot, microservices, and AWS.\nDrive end-to-end system design, including API contracts, data modelling, service boundaries, integration patterns, and deployment architecture.\nApply Domain-Driven Design (DDD), event-driven architecture, object-oriented principles, and established design patterns.\nDesign and optimize RESTful APIs, asynchronous messaging systems, and event-driven integrations using Kafka and other messaging technologies.\nMake architectural decisions involving scalability, consistency, performance, reliability, security, and cost optimization.\nLead technical design reviews, evaluate architectural trade-offs, and establish reusable engineering patterns across teams.\nIdentify technical debt, architectural bottlenecks, and modernization opportunities\nHands-on Engineering & Technical Excellence\nRemain actively involved in hands-on coding, prototyping, complex feature implementation, and critical technical problem-solving.\nDevelop and maintain enterprise applications using Java, Spring Boot, SQL/NoSQL databases, and cloud-native technologies.\nEstablish engineering standards for clean code, secure coding, automated testing, code reviews, and continuous integration.\nDrive Test-Driven Development (TDD), automated testing, and shift-left quality practices.\nTroubleshoot complex production issues, perform root cause analysis, and implement sustainable corrective actions.\nOptimize system performance, API latency, database efficiency, and resource utilization.\nPromote production readiness through observability, distributed tracing, structured logging, monitoring, and proactive alerting\nAI Engineering & Innovation\nDesign and integrate AI-powered capabilities into enterprise applications and engineering workflows.\nDemonstrate practical understanding of Large Language Models (LLMs), prompt engineering, Retrieval-Augmented Generation (RAG), and AI orchestration patterns.\nEvaluate and implement agentic AI workflows, tool calling, and Model Context Protocol (MCP)-based integrations where appropriate.\nDevelop Proofs of Concept (POCs) and production-oriented solutions using AI APIs, orchestration frameworks, and enterprise integration patterns.\nUnderstand key AI engineering considerations including evaluation, hallucination mitigation, guardrails, security, observability, latency, and cost.\nIdentify opportunities to improve engineering productivity through AI-assisted development, testing, documentation, and troubleshooting.\nCollaborate with engineering teams to introduce AI-enabled solutions that deliver measurable business or engineering value.\nTechnical Leadership & Collaboration\nServe as a technical authority and mentor for senior engineers, technical leads, and developers.\nInfluence architectural direction and engineering practices across multiple teams without relying on direct reporting authority.\nCollaborate with Product, QA, DevOps, Security, and Platform teams to deliver end-to-end solutions.\nTranslate ambiguous business problems into clear technical designs and actionable engineering plans.\nDrive technical discussions, resolve complex engineering challenges, and communicate architectural decisions effectively.\nEvaluate emerging technologies and recommend adoption based on business value, maintainability, and long-term sustainability.\nQUALIFICATIONS:\nBachelor's degree in Computer Science, Engineering, or equivalent practical experience.\nTypically 6-10 years of professional software engineering experience, including significant experience designing and delivering enterprise-scale applications.\nStrong hands-on expertise in Java, Spring Boot, microservices, and object-oriented programming.\nProven experience designing distributed systems, scalable APIs, and high-availability architectures.\nDeep understanding of system design concepts including caching, concurrency, database transactions, consistency, fault tolerance, and asynchronous processing.\nExperience with AWS or comparable cloud platforms, containerization, and Kubernetes.\nExperience with RESTful APIs, API gateways, authentication, authorization, and enterprise integration patterns.\nStrong knowledge of relational databases, SQL optimization, and data modelling.\nExperience with event-driven systems and messaging platforms such as Kafka, SQS, or equivalent technologies.\nStrong understanding of CI/CD, automated testing, observability, and production troubleshooting.\nPractical experience using AI-assisted development tools and applying AI capabilities to engineering problems.\nWorking knowledge of LLM integration, RAG, agentic workflows, or AI orchestration, supported by hands-on implementations or meaningful technical projects.\nStrong problem-solving abilities and demonstrated ownership of complex technical initiatives.\nExcellent communication skills and the ability to influence technical decisions across teams.\nAND IT'S GREAT TO HAVE\nExperience in Billing, Payments, Financial Transactions, Collections, or Commerce platforms.\nExperience designing customer-facing APIs and API-first platforms.\nKnowledge of payment processing, transaction integrity, idempotency, reconciliation, and PCI-related security considerations.\nExperience with OpenTelemetry, Grafana, distributed tracing, and modern observability platforms.\nExperience with Redis, Kafka, Kubernetes, Docker, and infrastructure-as-code.\nExperience with API management platforms such as Gravitee, Apigee, or Kong.\nHands-on experience with Amazon Bedrock, LangChain, LangGraph, or similar AI orchestration technologies.\nExperience designing and deploying production AI applications, including evaluation frameworks, monitoring, and guardrails.\nFamiliarity with MCP servers, tool integrations, and enterprise agentic systems.\nExperience driving AI-assisted SDLC automation or engineering productivity initiatives.\nExperience mentoring engineers and driving architectural improvements across multiple teams.\nDemonstrated ability to balance technical innovation with production reliability, security, and business priorities.\n\nCompensation 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 -\n$136,100 - $147,800 CAD- 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.\n\nWHAT’S IN IT FOR YOU:\nPurpose led company with a Values focused culture - Best Life, One Team, Growth Mindset\nTime Off - with our open PTO policy, we offer flexibility in how and when you take PTO!\nDays of Disconnect - once a quarter, we take a collective breather and enjoy a day off together around the globe. #oneteam\nParental & Pawternity Leave - we offer leave for when your family grows by two feet or four paws!\nBest Life Perk - we are committed to meeting you wherever you are in your fitness journey with a quarterly reimbursement\nMedical/Dental/Vision coverage\nEAP - we get you help when you need it. Period.\nPremium Calm App - enjoy tranquility with a Calm App subscription for you and up to 4 dependents over the age of 16\nAnd more! - so many benefits we couldn’t even fit them all here!\nAt 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.\nABC’S COMMITMENT TO DIVERSITY, EQUALITY, BELONGING AND INCLUSION:\nABC 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.\nAbout ABC Fitness\nABC 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.\nFrom 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. 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Docs: https://alion.io/developers"}}