# Senior Fullstack Mobile Engineer **Company:** [Mindera](http://jobs.workable.com/companies/kAFiuZuCGfsouMaZWJDxvE.md) **Location:** London, United Kingdom **Workplace:** hybrid **Department:** Engineering [Apply for this job](http://jobs.workable.com/view/f4ea8e2c-8cf1-49da-96f8-ee594b34596d) ## Description We are looking for a **Senior Fullstack Mobile Engineer** with a strong emphasis on backend architecture to join the team developing a greenfield platform. You will own the end-to-end technical delivery of features, with the majority of your time focused on designing and building a robust, secure, and scalable backend using **NestJS, Node.js and TypeScript**. On the mobile side, you will contribute to feature integration and deployment within a **React Native and Expo** environment, ensuring seamless delivery across the full technology stack. The platform operates within a large enterprise technology ecosystem, so this role requires a senior engineer who is comfortable driving technical discussions, making architectural decisions, aligning infrastructure, and collaborating with neighbouring teams working across different technology stacks, including **Kotlin and Spring Boot**. _**This role requires onsite time in Pimlico and sits inside IR35.**_ ### Backend Architecture & Development - Design, build and maintain highly scalable, secure and testable backend services using **NestJS, Node.js and TypeScript**. - Own backend architecture and technical decisions across the platform. - Design robust APIs, services and integrations that support long-term scalability and maintainability. - Apply appropriate software design patterns and engineering principles throughout the platform. ### Mobile Development & Integration - Deliver end-to-end features across the backend and mobile application. - Implement and optimise frontend capabilities using **React Native and Expo**. - Work closely with backend and platform teams to ensure effective API integration and reliable mobile experiences. - Support the build, release and deployment lifecycle of mobile applications. ### Identity & Security - Own the integration of enterprise-grade authentication and authorisation workflows using **Auth0**. - Design secure identity flows and ensure security best practices are applied across backend and mobile applications. - Work with enterprise teams to align authentication and security architecture. ### Data & Caching - Design efficient and maintainable relational data models using **PostgreSQL**. - Optimise database queries and application performance. - Implement high-performance caching and session-management strategies using **Redis**. - Make informed decisions around data consistency, performance and scalability. ### CI/CD & Infrastructure - Develop and maintain automated build, test and deployment pipelines. - Manage CI/CD processes for backend services and mobile applications. - Containerise applications using **Docker and Docker Compose**. - Deploy and manage containerised services using **AWS ECS**. - Collaborate with infrastructure and neighbouring engineering teams to ensure reliable and consistent environments. ### Technical Leadership & Collaboration - Drive technical discussions and contribute to wider architectural decisions. - Work collaboratively with teams operating across different technology stacks, including **Kotlin / Spring Boot**. - Translate business and technical requirements into pragmatic, scalable solutions. - Take ownership of technical delivery from design through to production. - Provide technical leadership and promote engineering best practices across the team. ## Requirements ### Senior Engineering Experience - Proven experience working at **Senior Engineer** level, with the ability to operate autonomously and take ownership of architecture, data modelling and deployment strategies. - Strong track record of delivering production-grade software in complex environments. - Comfortable making technical decisions and influencing architecture across team boundaries. ### Backend Expertise - Deep, production-proven experience with **Node.js and TypeScript**. - Extensive hands-on experience with **NestJS**. - Strong understanding of backend architecture, API design, scalability, security and performance. - Strong understanding of software design patterns and architectural principles. ### Database & Caching - Strong hands-on experience with **PostgreSQL**, including relational data modelling and query optimisation. - Production experience with **Redis**, including caching, session management and data structures. ### DevOps & Cloud - Strong experience with **Docker and Docker Compose**. - Hands-on experience deploying and managing containerised applications using **AWS ECS**. - Experience with automated CI/CD pipelines and deployment strategies. ### Frontend & Mobile - Hands-on experience with **React Native**. - Experience working with the **Expo** ecosystem. - Comfortable delivering full-stack features spanning backend services and mobile applications. ### Authentication & Security - Experience implementing complex authentication and authorisation workflows using **Auth0**. - Strong understanding of application security and enterprise identity management. ### Testing & Quality - Strong commitment to automated testing and engineering quality. - Experience writing and maintaining **unit, integration and E2E tests**. - Comfortable applying testing strategies across both backend and mobile applications. ### Technology Stack **Backend:** Node.js, TypeScript, NestJS **Mobile:** React Native, Expo **Database:** PostgreSQL **Caching:** Redis **Authentication:** Auth0 **Cloud:** AWS ECS **Infrastructure:** Docker, Docker Compose **Testing:** Unit, Integration & E2E **Enterprise Integration:** Kotlin / Spring Boot ## Benefits - Competitive Rates - Flexible working arrangements - Opportunities for professional development and career advancement within a global company - A dynamic, innovative, and supportive work environment, where your ideas and contributions are valued - The chance to work on cutting-edge projects that are transforming the industry - Most of all you get to work with a bunch of great people, where the whole team owns the project together in a politics-free environment. Our culture reflects our lean and self-organisation attitude. We encourage our colleagues to take risks, make decisions, work in a collaborative way and talk to everyone to enhance communication. Freedom and Responsibility go hand in hand, and we value commitment, feedback, and empathy.