AWIN

Senior Software Engineer

Amsterdam, North Holland, Netherlands; Iași, Iași, Romania; London, England, United Kingdom; Madrid, Madrid, Spain; Milano, Milan, Italy; Paris, Paris, France; Warsaw, Masovian Voivodeship, NetherlandsFull timeSeniorPosted 20 days ago
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Purpose of the Position As a Senior Software Engineer, you will be part of a cross-functional, service-oriented team, working on extending and maintaining our Affiliate Marketing platform. You design and build reliable services by writing clean, secure, and well-tested code, following modern engineering best practices. In this role, you have a significant impact on system efficiency, technical quality, and team effectiveness. You take ownership of meaningful challenges, balancing technical excellence with sustainable product and business needs, and contribute to a collaborative, agile way of working.   The Team You’ll join our Billing & Payments tribe, owning a core domain of the business: how customers are billed and partners get paid. Our engineering culture values pragmatic solutions, automation, strong ownership, and continuous improvement supported by open feedback loops. We are moving towards a cloud‑first architecture with a strong focus on AWS, working with technologies such as Java/Spring, AWS Lambda, Node.js, Kafka, SQL/NoSQL databases, and more. Key Tasks Work within a small, collaborative team using agile methodologies and practices Take ownership of applications across the full lifecycle, from design and implementation to operation Proactively identify improvement opportunities and technical risks, helping shape technical direction Solve real business problems by translating requirements into scalable technical solutions Support an effective agile way of working by helping facilitate team ceremonies and workshops Mentor engineers through code reviews, knowledge sharing, and day-to-day collaboration Troubleshoot and resolve production issues, ensuring service reliability and operational stability Communicate effectively in writing and verbally with local and remote colleagues and stakeholders Whilst the above outlines the general expectations of the role, we expect this position to evolve over time, offering opportunities to gain deeper knowledge and experience within the online and affiliate marketing domain. Skills & Expertise 6+ years of professional software engineering experience Strong foundation in OOP and comfort working with multiple programming languages, ideally incl. Java/Spring Passion for clean, maintainable code with a strong understanding of SOLID principles Hands-on experience designing AWS-based systems, microservices with REST APIs, and event-driven architectures Focus on engineering quality through code reviews, testing, and test strategy improvement Responsibility for maintaining CI/CD pipelines for reliable, automated software delivery Confident use of Git or similar version control systems in a collaborative environment Solid understanding of relational databases, data modelling, and SQL Familiarity with non-relational databases like DynamoDB, MongoDB Basic knowledge of web technologies and modern frontend frameworks, ideally Angular Proven collaboration in cross-functional teams with P...

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