Location: Cologne (WeWork) or Remote from Germany (CET‑time) · Team: Product & Engineering · Type: Full‑timeWhy Ordio80% of employees worldwide don’t work at a desk. Ordio 💙 is the all‑in‑one SaaS platform that helps organisations manage and empower this workforce: shift planning, time tracking, absence & document management, powered by modern AI.We’re an ambitious HR tech startup, scaling fast in Germany. We believe AI can make work better for millions of people by simplifying admin, enabling smarter decisions, and giving employees the tools they deserve.The RoleWe’re looking for a Senior PHP Developer to help build and scale Ordio’s new Payroll Plus — a product that simplifies German payroll by automating everything from wage calculations to payslip distribution for blue-collar teams.You’ll use Symfony, AWS, and modern development practices to build reliable, scalable systems that integrate seamlessly with Ordio’s shift planning & time tracking. You’ll create tools that make our payroll admins more efficient and extend the platform with new features for workspace admins & employees whilst collaborating closely with Product to ship impactful features & improve architecture.What You'll DoBuild and maintain core features of Ordio's SaaS platform using PHP and SymfonyDesign, implement, and optimise scalable backend systems on AWS cloud infrastructureWrite clean, testable, and maintainable code that follows best practicesArchitect solutions for complex problems in workforce management, time tracking, and schedulingCollaborate with Product and Design to translate requirements into technical solutionsParticipate in code reviews and mentor junior engineersContribute to technical decisions around architecture, tooling, and development workflowsWork with databases (SQL), APIs (REST/GraphQL), and third-party integrations (payroll, compliance tools)Monitor, debug, and optimise application performance and reliabilityChampion engineering excellence: testing, documentation, CI/CD, and automationWhat Sets You Up For SuccessMust-haves5+ years of professional experience with PHP, with deep expertise in Symfony frameworkStrong experience deploying and managing applications on AWS (EC2, RDS, S3, Lambda, CloudFormation, etc.)Solid understanding of object-oriented programming, design patterns, and SOLID principlesExperience building and maintaining RESTful APIs and integrating third-party servicesProficient with SQL databases (PostgreSQL, MySQL) and database designComfortable with version control (Git), CI/CD pipelines, and agile workflowsStrong problem-solving skills and ability to work independentlyExcellent communicator who can collaborate across Product, Design, and EngineeringFluent in English; German is a plusNice-to-havesExperience in HR tech, workforce management, or SaaS products for frontline workersFamiliarity with AI/ML integration, vector databases, or LLM-based featuresKnowledge of Docker, Kubernetes, or other containerisation technologiesExperience with event-driven architecture, message queues (SQS, RabbitMQ), or microservicesUnderstanding of European labour compliance, payroll systems, or shift scheduling logicExperience with frontend technologies (JavaScript, React, Vue) for full-stack collaborationContributions to open-source projects or technical writingHow We WorkEmpowered squads: Product Manager + Frontend Engineer + Backend Engineer work as a trio on discovery and deliveryAgile & lean: we value learning quickly over shipping perfectlyTransparent & data-driven: clear goals, outcomes measured rigorouslyCulture of ownership: autonomy with accountabilityEngineering excellence: code reviews, testing, documentation, and continuous improvementWhat You'll Get💰 Competitive compensation and benefits (e.g. flexible time off, generous parental leave)🏋️♀️ Enjoy true ownership of your development in an early-stage environment - accelerating Ordio’s global expansion while charting your own professional path from day one🚀 Thrive in an open, innovative culture where autonomous teams tackle ambitious projects and drive meaningful impact📱 State-of-the art technical equipment & tooling (MacBook Pro with M4 at minimum)🏝️ Enjoy full flexibility - remote work, home office options, and flexible hours💪 Prioritize both physical and mental well-being with subsidized gym memberships and regular wellness-focused initiatives🌎 A clear set of company values that guide everything we do: Live for Customer Value, The Best Team Wins, We Own It, and Earth Is Our FutureOur Process (fast & respectful)Intro chat (30 min) – mutual fit & role context with our Talent LeadHiring Manager Interview – Tech discussion with the Hiring ManagerLive Coding Interview – small collaborative exercise in PHP with the Team LeadCEO Chat – values, ways of working, Q&AWe move quickly and respect your time—offers typically follow promptly after final interviews.About OrdioWe at Ordio 💙 are looking for people who want to be more than just another employee: ambitious, forward thinking, ready to shape our industry. 🚀.We believe that by giving people the best tools to solve their own problems, we can better solve the world's problems together. We are always looking for talented people who are interested in shaping the future together - shape it with us 💙If this sounds like you, we’d love to hear from you. Share your CV, LinkedIn, and a short note on your most impactful product launch via our careers page at ordio.com.Ordio is an equal‑opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.