> Markdown version of [/jobs/ext/73319-senior-full-stack-engineer](https://www.wearedevelopers.com/jobs/ext/73319-senior-full-stack-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Full-stack engineer - **Company:** S.A. Corp. - **Location:** United States (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Flutter, Java (Programming Language), Application Programming Interfaces (APIs), Agile Methodology, JIRA, Mobile Application Development, Software Quality, Code Review, Continuous Integration, Mobile Application Software, PostgreSQL, Enterprise Messaging Systems, MongoDB, NoSQL, Object-Oriented Software Development, Performance Tuning, RabbitMQ, Systems Integration, Strategies of Testing, Web Services, Test-Driven Development (TDD), Spring Cloud, Spring-boot, Technical Debt, Backend, Git, Kotlin, Solid Principles, Information Technology, Apache Kafka, Dart, Front End Software Development, Restful APIs, Software Version Control, Docker, Microservices - **Published:** May 14, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=a49dc7042367a0e8 ## About the Role Do you have experience in Version control?, Do you have a Master's degree?, We are seeking an experienced Senior Full Stack Engineer with a strong backend background and hands-on experience in mobile development with Flutter. In this role, you will play a key part in designing, building and optimizing robust backend services while also contributing to the development and evolution of our mobile applications. The position has a strong emphasis on backend engineering, architecture and scalability, while requiring the ability to work across the stack when needed, especially on Flutter mobile applications and integrations. You will join a technology team building and evolving digital banking and wealth management products used in a regulated financial environment. This is an opportunity to work on real banking and payments systems, with a modern cloud-native stack, high engineering standards and direct impact on product quality, scalability and customer experience. We value professionals who are organized, self-motivated, results-driven and comfortable thriving in a collaborative, fast-paced startup environment, taking ownership and pride in their work., Bachelor's or Master's degree in Computer Science or a related quantitative field. Required Experience and Skills Backend Engineering * Strong experience with backend development using Java (11+) and/or Kotlin with Spring Boot * Candidates with strong backend experience in Go and a clear willingness to work with Kotlin/Spring Boot will also be considered. * Experience designing and building microservice architectures * Strong knowledge of RESTful APIs and web service integration * Experience with relational and NoSQL databases (PostgreSQL and MongoDB preferred) * Familiarity with messaging systems such as Kafka, RabbitMQ or similar * Experience with Docker and Kubernetes * Hands-on experience building cloud-native applications (preferably on GCP) * Strong understanding of Object-Oriented Programming (OOP), SOLID principles and Test-Driven Development (TDD) Mobile / Frontend * Hands-on experience with Flutter and Dart * Good understanding of mobile application architecture, performance and testing strategies * Experience integrating mobile applications with backend services and APIs * Familiarity with CI/CD tools and app release processes * Understanding of Git usage and code management General Skills * Fluent in English and Italian, with strong communication skills * Excellent problem-solving and analytical skills * Comfortable working in Agile teams and fast-paced environments * Strong sense of ownership, accountability and attention to detail * Experience in FinTech, Banking or highly regulated industries is a plus * Experience with Jira is a plus If you're a passionate engineer looking to work in a dynamic environment where innovation meets excellence, we'd love to hear from you! ## Description * Design, build and maintain highly available, scalable and secure backend systems * Develop and improve RESTful APIs and integrations with mobile and third-party systems * Contribute to the architecture and evolution of our backend services and microservices ecosystem * Support the development and maintenance of our mobile applications using Flutter and Dart * Collaborate closely with Product, Design and Engineering teams on new features and technical improvements * Optimize system performance, reliability and scalability across backend and mobile environments * Ensure code quality through testing, code reviews and engineering best practices * Contribute to CI/CD pipelines and deployment processes for both backend and mobile applications * Proactively identify technical debt and propose innovative solutions and improvements * Share knowledge across the team, mentor more junior engineers and contribute to technical hiring when needed * Continuously explore and adopt new technologies and best practices ## Related Videos - [Next Level Enterprise Architecture: Modular, Flexible, Scalable, Multichannel and AI-Ready?](https://www.wearedevelopers.com/videos/1017-next-level-enterprise-architecture-modular-flexible-scalable-multichannel-and-ai-ready) - [Dart - a language believed dead, experiences a new bloom](https://www.wearedevelopers.com/videos/442-dart-a-language-believed-dead-experiences-a-new-bloom) - [Improving quality with Agentic AI with Rovo Dev and Xray](https://www.wearedevelopers.com/videos/2005-improving-quality-with-agentic-ai-with-rovo-dev-and-xray) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Applying DevOps in Flutter mobile development](https://www.wearedevelopers.com/videos/60-applying-devops-in-flutter-mobile-development) - [Migrating half a million users to a new payment service provider](https://www.wearedevelopers.com/videos/730-migrating-half-a-million-users-to-a-new-payment-service-provider) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [The Biggest German Tech Companies](https://www.wearedevelopers.com/magazine/424-the-biggest-german-tech-companies) - [How Much FAANG Companies Actually Pay Software Engineers in 2025](https://www.wearedevelopers.com/magazine/230-how-much-faang-companies-actually-pay-software-engineers-in-2025) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries)