Job Title: Senior Java Software Developer - GCP Location: Dunton - 4 days per week onsite Salary/Rate: £560 per day inside IR35 Start Date: 22/06/2026 Job Type: Contract

Company Introduction As a highly regulated financial services organisation, operates mission-critical platforms that process large volumes of transactions securely and reliably. Technology plays a central role in delivering exceptional customer experiences while maintaining the highest standards of security, resilience, and operational excellence.

Job Responsibilities/Objectives 1.Designing and building high-scale Back End services using Java 2.Developing secure and resilient identity and access management solutions 3.Working on systems supporting high-volume transactional workloads in a regulated environment 4.Applying Test Driven Development (TDD) throughout the software development life cycle

Required Skills/Experience 1.Extensive experience in Back End software engineering 2.Strong Java development experience 3.Experience designing and building high-scale, highly available Back End services 4.Experience working within financial services, banking, lending, payments, or other regulated environments

Desirable Skills/Experience 1.Experience with Identity and Access Management (IAM) platforms 2.Knowledge of OAuth, OpenID Connect, SSO, or authentication services 3.Experience with microservices and distributed systems 4.Exposure to cloud platforms such as GCP, AWS, or Azure

Disclaimer Not withstanding any guidelines given to level of experience sought, we will consider candidates from outside this range if they can demonstrate the necessary competencies. Square One is acting as both an employment agency and an employment business, and is an equal opportunities recruitment business. Square One embraces diversity and will treat everyone equally. Please see our website for our full diversity statement.