Lead Backend Engineer - Java, Banking & Cloud

United States Digital Space LLC; Greater London; On-site; GBP 90,000 - 130,000; Full time

Job summary

FDM is seeking a Lead Software Engineer (Back End Java) to work for a client within the banking sector. This is a 6-month contract and will be a fully office-based role based in Canary Wharf.

You will deliver cloud-native microservices, implement robust test strategies, ensure secure coding, and mentor team members while driving AI-assisted development practices to improve quality and delivery.

Qualifications

• Formal training or certification on software engineering concepts and applied experience.
• Recent hands-on professional experience as a back-end software engineer.
• Experience in Java programming language.
• Experience in designing and implementing effective tests (unit, component, integration, end-to-end, performance, etc.).
• Excellent written and verbal communicationskills in English.
• Experience with cloud technologies and distributed systems, RESTful APIs and web technologies.
• Knowledge of messaging frameworks.
• Seasoned with operating, supporting and the security of mission critical software applications.
• Understanding with different kinds of data stores (including relational data stores).
• Coach other team members on coding practices, design principles, and implementation patterns that lead to high-quality maintainable solutions.
• Manage stakeholders and effectively prioritize work across multiple work streams.
• Demonstrated experience leading effective use of enterprise-authorized AI-assisted software development tools within the work environment with the ability to set team expectations for validating AI outputs for correctness, performance, and security.
• Strong understanding of responsible AI use in engineering workflows, including data sensitivity considerations, secure handling of inputs/outputs, and adherence to resiliency and security expectations.

Responsibilities

• Deliver end-to-end cloud-native microservices architecture applications leveraging the latest technologies and best industry practices.
• Use domain modelling techniques to build best in class business products.
• Structure software so that it is easy to understand, test and evolve.
• Build solutions that avoid single points of failure, using scalable architectural patterns.
• Develop secure code so that our customers and ourselves are protected from malicious actors.
• Promptly investigate and fix issues and ensure they do not resurface in the future.
• Make sure our releases happen with zero downtime for our end-users.
• See that our data is written and read in a way that’s optimized for our needs.
• Keep an eye on performance, making sure we use the right approach to identify and solve problems.
• Ensure our systems are reliable and easy to operate.
• Keep us up to date by continuously updating our technologies and patterns.
• Support the products you’ve built through their entire lifecycle, including in production and during incident management
• Drives adoption and governance of approved AI‑assisted engineering practices across teams to improve code quality, delivery speed, and operational outcomes, while establishing measurable validation standards.
• Applies knowledge of tools within the Software Development Life Cycle toolchain, including AI-assisted development and automation capabilities, to improve automation at scale.

Skills

Java

Cloud technologies

RESTful APIs

Distributed systems

AI-assisted development tools

Mentoring / coaching

Stakeholder management

Education

Software engineering certification

Tools

AWS

Job description

FDM is seeking a Lead Software Engineer (Back End Java) to work for a client within the banking sector. This is a 6-month contract and will be a fully office-based role based in Canary Wharf.

You will deliver cloud-native microservices, implement robust test strategies, ensure secure coding, and mentor team members while driving AI-assisted development practices to improve quality and delivery.