Java API Developer, Officer
State Street —London
- Full-time
- Agile
- Financial services
- SDLC
Senior Fullstack Software Engineer (.NET/Java)
Sky —London
- Full-time
- Hybrid work
- Mentoring
- Communication skills
Synthetics Lead Developer
Barclays —London
- Mentoring
- Software development
Senior UI Software Engineer II
RELX —London
- Full-time
- Computer Science
- DevOps
- Engineering
- Employee assistance programme
- Employee discount
Python Developer
London Stock Exchange Group —London
- Full-time
- Java
- C++
- Communication skills
14d
Sr Software Engineer
Wellington Management —London
- Full-time
- Computer Science
- AWS
- Bachelor's degree
Senior Payments Engineer
SwiftXccess —London
- Remote
- Databases
- Mentoring
- Agile
Senior Software Engineer (with Delivery Management)
Everfox —London
- £76,900 - £123,500 a year
- Full-time
- Hybrid work
- Computer Science
- Engineering
- AI
- Annual leave
Sr Software Engineer I
American Express —London
- Full-time
- Computer Science
- Engineering
- Bachelor's degree
- Life insurance
1d
Senior UI Software Engineer II
LexisNexis Risk Solutions —London
- Full-time
- Computer Science
- DevOps
- Engineering
- Employee assistance programme
- Employee discount
Senior Software Developer
Echobox —London
- Full-time
- Computer Science
- Software troubleshooting
- Engineering
- Annual leave
11d
Solar Web UI Developer
Standard Chartered —London
- English
- Communication skills
- Annual leave
- Employee assistance programme
7d
Backend Developer (SC Eligible/ Cleared)
Scrumconnect Consulting —London
- £55,000 - £65,000 a year
- Computer Science
- Master's degree
- Bachelor's degree
6d
UK Development Team Lead
Reset Health —London
- £65,000 - £75,000 a year
- Full-time
- Hybrid work
- Computer Science
- English
- Databases
Quick apply
6d
Senior Backend Software Engineer - Infrastructure
Palantir Technologies —London
- Full-time
- Java
- APIs
- In-person
- Work from home
Dev Ops - Java/Python - London
Photon —London
- Full-time
- Computer Science
- Java
- Analysis skills
Senior TypeScript CI/CD Automation Engineer
Luxoft —London
- English
- Team management
- Software development
3h
Senior Software Engineer - Regulatory News
London Stock Exchange Group —London
- Full-time
- English
- AWS
- Software development
Senior Software Engineer - Advisory Suite
Alpaca —London
- Remote
- Databases
Quick apply
Senior ETRM Application Developer
Castleton Commodities International —London
- Full-time
- Oracle
- AWS
- Bachelor's degree
- Annual leave
- Employee discount

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 Fullstack Software Engineer (.NET/Java)

Synthetics Lead Developer

Senior UI Software Engineer II

Python Developer

Sr Software Engineer

Senior Payments Engineer

Senior Software Engineer (with Delivery Management)

Sr Software Engineer I

Senior UI Software Engineer II

Senior Software Developer

Solar Web UI Developer

Backend Developer (SC Eligible/ Cleared)

UK Development Team Lead

Senior Backend Software Engineer - Infrastructure

Dev Ops - Java/Python - London

Senior TypeScript CI/CD Automation Engineer

Senior Software Engineer - Regulatory News

Senior Software Engineer - Advisory Suite

Senior ETRM Application Developer

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