Senior Backend Software Engineer (TypeScript, NestJS/Node.js) (m/f/x)

Atolls is the world's largest community-driven shopping platform, active in 20+ markets. We help millions make smarter spending decisions across discovery, evaluation, and (re-)purchase by connecting people with the right brands and retailers. Our 1,000+ team across 10 countries builds products used every day at global scale, where you'll have real ownership and see your impact. Want to shape the destinations people rely on to shop with confidence? Keep reading. About This Role: We are looking for a Senior Backend Software Engineer (TypeScript, NestJS/Node.js) to join our Fulfilment team in London or working remotely from the UK. At Atolls, your role will be instrumental in helping us develop and launch our innovative saving and rewards programs, creating exceptional user experiences and empowering consumers to make informed and confident shopping decisions. As a key part of the team, you'll be directly involved in our mission to make it easy for customers to join, stay safe, and get help without friction - through secure authentication, scalable self-services, and proactive fraud prevention that protects users before they need to contact support. Your contributions will help shape how millions of consumers interact with our platforms, guiding them to make smart, fair, and rewarding choices. Our Benefits: At Atolls, we believe in nurturing both your professional and personal growth. Here's what you can expect: A culture that values personal and professional development, with internal mobility opportunities. A supportive and open-minded team that embraces diverse perspectives and innovative ideas. 32 days of paid vacation plus your birthday off, giving you the time you need to recharge. A flexible hybrid working scheme to balance work and life. Access to a learning budget and internal training to help you grow in your role. Mental health coaching to support your well-being. Regular global and local get-togethers to celebrate successes and build connections. The possibility of taking a sabbatical after three years with the company. A cloud-based company setup, providing flexibility and collaboration opportunities no matter where you are. *These are global benefits that apply to all employees, with additional local perks based on your location. Responsibilities: As a Senior Backend Software Engineer , you will: Design, develop, and maintain web applications and components using Node.js, TypeScript, NestJS and related technologies, ensuring adherence to coding standards and best practices. Collaborate with front-end developers, designers, and engineering and product managers to deliver high-quality solutions, actively participating in the full software development lifecycle. Troubleshoot and debug issues in existing codebases, optimizing application performance and scalability to enhance user experience. Integrate third-party APIs and services seamlessly, staying updated on the latest web development trends. Document code and processes comprehensively for future reference, while following security best practices to safeguard web application integrity and confidentiality. Provide technical guidance and support to junior developers as needed, contributing to team discussions and decision-making processes regarding architecture and technology selection. Your Profile: You have 6+ years of experience as a Software Developer. Knowledge of AWS technologies such as DynamoDB, Elasticsearch, relational and NoSQL databases, EventBridge and messaging and queuing solutions like SQS, SNS (or any other cloud platform like Google Cloud or Azure). General understanding of common design and architectural patterns, with the ability to produce elegant designs in back-end, REST API, EDA and microservice architectures. Logical, analytical thinking, with a structured and target-oriented approach and very good problem-solving skills. Passion for delivering clean code,