Senior Java Software Engineer

United States Digital Space LLC; Greater London; On-site; GBP 90,000 - 140,000; Full time

Job summary

United States Digital Space LLC is seeking Software Development Engineers to design, implement, and improve software applications and systems. The role focuses 60–75% on coding with modern tools, collaborating with product managers, data scientists, and QA to deliver secure, scalable fintech solutions.

Ideal candidates have extensive software engineering experience, leadership, and a track record of building reliable developer tools.

Qualifications

• Experience in software engineering or a directly related field.
• Experience in developing and/or implementing web-based or mobile applications.
• Experience in a leadership role with or without direct reports.
• Experience in technologies/software systems or a directly related field.
• Experience in creating and maintaining test plans and executing testing procedures.
• Experience in debugging and troubleshooting software issues.
• Experience in collaborating with cross-functional teams to deliver technical solutions.
• Experience in code review and applying coding standards.
• Experience in building or enhancing developer tools.

Responsibilities

• Collaborate with stakeholders to determine requirements for product components and incorporate feedback into future designs or solutions.
• Translate functional requirements into system designs and communicate component interactions, ensuring alignment with business needs and timelines.
• Design and develop product components, refine code plans, and lead design reviews to ensure completeness and adherence to requirements.
• Contribute to project estimation, considering delivery costs and escalating issues that may cause delays.
• Lead by example in creating, implementing, and maintaining extensible, reusable code, and drive code quality through metrics and best practices.
• Apply debugging tools to resolve moderately complex issues and identify opportunities for automation across products.
• Lead code reviews, ensuring adherence to coding standards and providing feedback to team members.
• Create complex test plans, identify test gaps, and proactively address defects to minimize customer impact.
• Leverage data analysis and monitoring standards to identify patterns and defects in all environments.
• Respond to incidents during on-call rotations, troubleshoot complex issues, and assist in incident response and resolution.
• Build, enhance, and identify new developer tools to support programs and applications.
• Proactively seek new knowledge and adapt to trends and technical solutions to improve product performance and recommend resources to other engineers.

Skills

Software engineering

Web/mobile applications

Leadership

Cross-functional collaboration

Code reviews

Debugging & troubleshooting

Developer tools

Test planning

Tools

Container-based technologies

Enterprise-scale web services

Job description

About Us

the company is a world leader in payments technology, facilitating transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories, dedicated to uplifting everyone, everywhere by being the best way to pay and be paid.

At the company, you'll have the opportunity to create impact at scale — tackling meaningful challenges, growing your skills and seeing your contributions impact lives around the world.

Join the company and do work that matters – to you, to your community, and to the world. Progress starts with you.

Job Description

Job Summary

Software Development Engineers are expert problem-solvers and builders who design, implement, and improve software applications and systems. In this role, engineers spend approximately 60–75% of their time coding, working hands-on with code, data, and modern tools (including AI-assisted development, cloud services, and automation frameworks) to deliver secure, scalable, and high-quality technology solutions that drive business outcomes in the fintech sector. They collaborate with cross-functional teams – product managers, designers, data scientists, QA, operations, and compliance – to translate business requirements into robust technical solutions, all while adhering to best practices, security standards, and regulatory requirements.

All roles require digital fluency, including the ability to work with emerging technologies such as Generative AI tools (e.g. ChatGPT, Microsoft Copilot) to support everyday work.

Key Responsibilities

• Collaborate with stakeholders to determine requirements for product components and incorporate feedback into future designs or solutions.
• Translate functional requirements into system designs and communicate component interactions, ensuring alignment with business needs and timelines.
• Design and develop product components, refine code plans, and lead design reviews to ensure completeness and adherence to requirements.
• Contribute to project estimation, considering delivery costs and escalating issues that may cause delays.
• Lead by example in creating, implementing, and maintaining extensible, reusable code, and drive code quality through metrics and best practices.
• Apply debugging tools to resolve moderately complex issues and identify opportunities for automation across products.
• Lead code reviews, ensuring adherence to coding standards and providing feedback to team members.
• Create complex test plans, identify test gaps, and proactively address defects to minimize customer impact.
• Leverage data analysis and monitoring standards to identify patterns and defects in all environments.
• Respond to incidents during on-call rotations, troubleshoot complex issues, and assist in incident response and resolution.
• Build, enhance, and identify new developer tools to support programs and applications.
• Proactively seek new knowledge and adapt to trends and technical solutions to improve product performance and recommend resources to other engineers.

Qualifications

Basic Qualifications

• Experience in software engineering or a directly related field.
• Experience in developing and/or implementing web-based or mobile applications.
• Experience in a leadership role with or without direct reports.
• Experience in technologies/software systems or a directly related field.
• Experience in creating and maintaining test plans and executing testing procedures.
• Experience in debugging and troubleshooting software issues.
• Experience in collaborating with cross-functional teams to deliver technical solutions.
• Experience in code review and applying coding standards.
• Experience in building or enhancing developer tools.

Preferred Qualifications

• 7 or more years of work experience
• Experience working with container-based technologies.
• Experience building and testing enterprise-scale web services.
• Experience in product development.
• Experience working on client-facing project or technical teams.

the company is an EEO Employer

Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability or protected veteran status. the company will also consider for employment qualified applicants with criminal histories in a manner consistent with EEOC guidelines and applicable local law.