Senior Software Developer - Java (all genders) at Lightspeed Commerce, Inc. | BE, DE | Rezi

Senior Software Developer - Java (all genders) at Lightspeed Commerce, Inc.

Senior Software Developer - Java (all genders)

Lightspeed Commerce, Inc. · BE, DE

Today

Senior Software Developer - Java (all genders)

Lightspeed Commerce, Inc. · BE, DE

15 hours ago
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About the Role

Join one of our energetic teams as a Senior Backend Developer to help drive the growth and development of our Hospitality product group. You will power our passion to deliver unmatched reliability, deeper value, and long-term delight for our customers and strengthen our comprehensive commerce platform. You will join the team driving the Lightspeed L- and G-series products, which power hospitality businesses across the globe and help them deliver exceptional guest experiences. Our mission is to stay ahead of customer needs and evolving regulations, while at the same time modernizing our technology stack to ensure these products remain reliable, scalable, and future-ready. You will join an international, independent and collaborative team, continuously improving our engineering practices, infrastructure and codebase, all while keeping it fun. Most importantly, your work will directly shape the daily experience of business owners and hospitality guests. Join us in pioneering the future of hospitality technology!

Responsibilities

  • Build new features and improve the developer experience for the L&G series product.
  • Balance core duties, including building new features and modernizing the backend technology stack.
  • Report to the Development Manager, maintaining robust interaction with Product Managers, Support Specialists, and Platform Teams.
  • Participate in daily agile ceremonies, ignite innovation, and actualize solution-oriented ideas.
  • Advocate for superior code quality and accountability, contributing actively to infrastructure health.
  • Disseminate knowledge and best practices within the team, while striving for personal advancement.

Requirements

  • Expert Java knowledge with 6+ years in production, including large, long-lived codebases.
  • 4+ years of deep Spring Framework experience (IoC, MVC, Security, transactions).
  • 4+ years using advanced SQL: complex queries, indexing, multi-tenant data models, and schema migrations.
  • Strong OOP, domain modeling, and design patterns, with judgment about when not to over-engineer.
  • A track record of designing and evolving backward-compatible REST APIs.
  • A strong advocate for testing, with experience in automated testing frameworks.
  • Familiarity with continuous integration/continuous deployment (CI/CD) pipelines.
  • Clear English communication: design reviews, trade-offs, and collaboration with non-technical stakeholders.
  • Computer Science degree or equivalent.

Skills

  • Java
  • Spring Framework
  • SQL
  • OOP
  • Domain Modeling
  • Design Patterns
  • REST APIs
  • Automated Testing
  • CI/CD
  • Agile Development
  • Payments
  • Fiscal/Compliance
  • Hybrid Cloud
  • On-Premise Systems
  • GCP
  • AWS
  • Kubernetes
  • Docker
  • Maven
  • Jetty
  • WAR Deployments
  • Redis
  • WebSockets
  • Scheduled Jobs

Location

  • Work from anywhere in the world for 60 days a year

Work Type

  • Full-time
  • Hybrid
  • Remote

Experience Level

  • Senior
  • 6+ years of production Java experience
  • 4+ years of Spring Framework experience
  • 4+ years of advanced SQL experience

Education Level

  • Computer Science degree or equivalent

Benefits

  • Lightspeed equity scheme
  • Monthly office lunch
  • Work from anywhere in the world for 60 days a year
  • Health and wellness benefit of 400 euros per year
  • Mental health online platform and counseling & coaching services
  • Volunteer day

About the Company

  • Lightspeed is building communities through commerce, and we need people from all backgrounds and lived experiences to do that. We were founded in 2005, in Montreal’s gay village and our original members were all part of the LGBTQ+ community. The ethos of our business has been about inclusion from the very beginning, and we strive to provide a workplace where everyone belongs.
  • Powering the businesses that are the backbone of the global economy, Lightspeed's one-stop commerce platform helps merchants innovate to simplify, scale, and provide exceptional customer experiences. Our cloud commerce solution transforms and unifies online and physical operations, multichannel sales, expansion to new locations, global payments, financial solutions, and connection to supplier networks.
  • Founded in Montréal, Canada in 2005, Lightspeed is dual-listed on the New York Stock Exchange (NYSE: LSPD) and Toronto Stock Exchange (TSX: LSPD). With teams across North America, Europe, and Asia Pacific, the company serves retail, hospitality, and golf businesses in over 100 countries.

Equal Opportunity

  • Lightspeed is a proud equal opportunity employer and we are committed to creating an inclusive and barrier-free workplace.
  • Lightspeed welcomes and encourages applications from people with disabilities.
  • Accommodations are available on request for candidates taking part in all aspects of the selection process.