Java API Developer, Officer
State Street —London
- Full-time
- Agile
- Financial services
- SDLC
Senior Software Engineer II - Engineering Experience
Wise Australia Investments —London
- £111,000 - £145,000 a year
- Java
- Software development
- AI
1d
Senior Software Developer
8x8, Inc. —London
- Full-time
- Hybrid work
- Computer Science
- Salesforce
- Master's degree
Java Developer – Systematic Hedge Fund
Durlston Partners —London
- Up to £130,000 a year
- Java
Software Development Engineer III (.NET/Java)
Tesco UK —London
- Full-time
- Databases
- Mentoring
- Agile
- Employee assistance programme
6d
Senior Software Engineer
The Currency Cloud Services Limited —London
- Doctoral degree
- DevOps
- Master's degree
Quick apply
Senior Java Engineer
London Stock Exchange Group —London
- Full-time
- AI
- Leadership
Senior Software Engineer
RELX —London
- Full-time
- Mentoring
- Computer networking
- APIs
- Flexible schedule
8d
Java Developer (Blockchain)
London Stock Exchange Group —London
- Full-time
- Communication skills
Senior Vice President, Senior Software Engineering, Developer Experience
The Bank of New York Mellon Corporation —London
- Full-time
- Computer Science
- Java
- Bachelor's degree
FX Risk — Lead Java Developer | Vice President
Citi —London
- Full-time
- Hybrid work
- Java
- Bachelor's degree
- No degree
- Annual leave
- Employee assistance programme
Technology Application Strategy - Java Developer - Assistant Vice President
Citi —London
- Full-time
- Hybrid work
- Annual leave
- Employee assistance programme
Senior Full Stack Developer
Appvia —London
- £70,000 - £85,000 a year
- Full-time
- Hybrid work
- AI
- Employee assistance programme
- Flexible schedule
Quick apply
Principal/Senior .NET Developer
Infor —Farnborough
- Software troubleshooting
- English
- Mentoring
Senior Software Engineer
Zeta Global —London
- Hybrid work
- Computer Science
- Engineering
- English
Quick apply
Senior Developer
Universal Music Group —London
- Full-time
- DevOps
- Communication skills
- Annual leave
- Employee discount
Senior Software Engineer
Viasat, Inc. —London
- Full-time
- Computer Science
- Bachelor's degree
- Software development
Senior Frontend Developer (React / TypeScript)
Mixam —Leavesden Green
- £65,000 - £75,000 a year
- Full-time
- Hybrid work
- Communication skills
Quick apply
Senior Software Engineer
WallStreetDocs —London
- Full-time
- AWS
- Mentoring
- Financial services
Senior Developer (Python)
Allwyn UK —Watford
- Analysis skills
- Scripting
- Annual leave
- Employee assistance programme

I want to receive the latest job alerts for senior java developer in harefield, gtl

By signing in to your account, you agree to SimplyHired's Terms of Service and consent to our Cookie and Privacy Policy.

Explore jobs in more locations

senior java developer jobs near harefield, gtl

Java API Developer, Officer

State Street -
London

Apply Now

Job details

Full-time

Qualifications

Jira
Spring Boot
Authentication
Performance tuning
Stakeholder collaboration
Back-end development
REST
Technical writing
Agile
Financial services
Unit testing
Business requirements
Maven
Software development or architecture experience
Spring MVC
SDLC

Full job description

Role Summary :

We are seeking a Java API Developer to join our Digital Asset development team. This is a hands-on software engineering role responsible for designing, developing, testing, and supporting RESTful APIs and backend services in a financial services environment. The role contributes to building reliable, secure, and well-documented services that integrate with upstream/downstream systems and support business-critical workflows. You will work closely with cross-functional teams to build robust, scalable, and secure digital asset products that meet our business and technical requirements.

Role Description :

Design, develop, and maintain Java-based backend services and REST APIs that support financial services workflows and data use cases.
Implement APIs in line with internal requirements for API design, security, versioning, and documentation , ensuring solutions are consistent and reusable.
Collaborate with business and technology stakeholders to understand requirements, clarify edge cases, and deliver well-scoped API changes in an Agile sprint model.
Write automated tests (unit and integration), participate in peer code reviews, and contribute to quality gates for each release.
Support service troubleshooting and production readiness activities such as logging, monitoring, defect triage, and minor performance tuning with guidance from senior team members.
Maintain clear technical documentation for APIs and integrations (e.g., endpoints, payloads, dependencies, and operational notes).

Core/Must have skills :

Hands-on experience developing Java backend applications, including REST API development in production or near-production environments.
Familiarity with common Java API frameworks and patterns (e.g., Spring Boot / Spring MVC-style services) and building maintainable service layers.
Understanding of secure API fundamentals (authentication/authorization concepts, safe handling of sensitive data) and willingness to follow enterprise standards.
Strong grasp of SDLC basics: source control, code reviews, automated testing, and working in Agile delivery.
Experience working in financial services (or another regulated environment) where reliability, controls, and documentation matter.

Good to have skills :

Awareness of internal enterprise API governance and onboarding concepts (e.g., role of enterprise teams and standards in API publication and compliance).
Experience with tools commonly used in enterprise Java teams (e.g., Maven/Jira-style workflows) and basic observability practices.
Digital asset knowledge: familiarity with concepts such as custody, tokenization, wallets, or blockchain-adjacent workflows—enough to understand domain terminology and integration needs.
Exposure to API integration patterns with third parties and documentation for API consumers.

About State Street

Across the globe, institutional investors rely on us to help them manage risk, respond to challenges, and drive performance and profitability. We keep our clients at the heart of everything we do, and smart, engaged employees are essential to our continued success.

We are committed to fostering an environment where every employee feels valued and empowered to reach their full potential. As an essential partner in our shared success, you’ll benefit from inclusive development opportunities, flexible work-life support, paid volunteer days, and vibrant employee networks that keep you connected to what matters most. Join us in shaping the future.

As an Equal Opportunity Employer, we consider all qualified applicants for all positions without regard to race, creed, color, religion, national origin, ancestry, ethnicity, age, disability, genetic information, sex, sexual orientation, gender identity or expression, citizenship, marital status, domestic partnership or civil union status, familial status, military and veteran status, and other characteristics protected by applicable law.

Discover more information on jobs at StateStreet.com/careers

Read our CEO Statement

Apply Now

Refine Your Search

senior java developer jobs in harefield, gtl

Java API Developer, Officer

Senior Software Engineer II - Engineering Experience

Senior Software Developer

Java Developer – Systematic Hedge Fund

Software Development Engineer III (.NET/Java)

Senior Software Engineer

Senior Java Engineer

Senior Software Engineer

Java Developer (Blockchain)

Senior Vice President, Senior Software Engineering, Developer Experience

FX Risk — Lead Java Developer | Vice President

Technology Application Strategy - Java Developer - Assistant Vice President

Senior Full Stack Developer

Principal/Senior .NET Developer

Senior Software Engineer

Senior Developer

Senior Software Engineer

Senior Frontend Developer (React / TypeScript)

Senior Software Engineer

Senior Developer (Python)

I want to receive the latest job alerts for senior java developer in harefield, gtl

Related Searches

Explore jobs in more locations

About State Street

Jobseeker tools

Employer Tools

Browse

Stay Connected