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Full Stack Engineer

Kpler - Athens, Greece - In-office - posted 2026-09-11

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Kpler is a global intelligence platform founded in 2014 that simplifies complex trade information across commodities, energy, and maritime sectors. With over 850 experts across 69 countries, the company transforms intricate data into actionable strategies for clients worldwide. As a Mid Full-Stack Engineer, you will be central to building and scaling core systems and internal tools that power Kpler's product ecosystem. You will work across the complete software stack, architecting resilient PHP backend services—including Stripe-driven payments and subscription billing infrastructure—while crafting responsive, user-friendly frontend interfaces with React and TypeScript. Key responsibilities include: • Architect and maintain high-performing backend services in PHP with clean domain boundaries, specifically managing billing and application management systems • Design and implement polished, accessible user interfaces using React, TypeScript, and Node.js • Ensure production reliability by writing comprehensive end-to-end (E2E) automated tests and implementing robust logging, retries, and failure recovery mechanisms • Collaborate cross-functionally with Product Owners, Business Analysts, Finance, CRM, Revenue Operations, and Support teams to translate business needs into technical solutions • Proactively challenge the status quo to elevate code quality, modernize legacy codebase components, and explore new engineering tools and frameworks • Debug and troubleshoot issues in production environments, managing relational database schemas (SQL) and Git/CI/CD workflows You will partner closely with Product, Finance, Revenue Operations, and CRM teams, with your work directly optimizing operational workflows and elevating the experience of global users. REQUIREMENTS (Must-haves): • 3+ years of professional software engineering experience with strong proficiency in backend PHP development and working with large-scale production codebases • Solid grasp of SQL and relational databases, alongside hands-on experience designing, building, and consuming REST APIs and system-to-system integrations • Practical experience with TypeScript/JavaScript, Node.js, and modern frontend frameworks such as React • Familiarity with modern software development practices (Git, code reviews, automated testing) and DevOps tools like Docker and Kubernetes • BSc/MSc in Computer Science, Computer Engineering, or equivalent practical experience • Excellent written and spoken English Nice-to-haves: • Experience working with Amazon Web Services (AWS) • Exposure to payment gateways (e.g., Stripe) and subscription lifecycle management • Prior experience refactoring legacy systems or handling high-volume, data-intensive applications

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