Java API Developer, Officer
State Street —London
- Full-time
- Agile
- Financial services
- SDLC
Senior Java Technical Lead - RESTful API, Spring Boot
HCLTech —Barnet
- Software troubleshooting
- SQL
- AWS
Senior Technical Specialist
HCLTech —London
- Maintenance
- Analysis skills
- Software development
Sr Software Engineer I
American Express —London
- Full-time
- Computer Science
- Engineering
- Bachelor's degree
- Life insurance
23h
Dev Ops - Java/Python - London
Photon —London
- Full-time
- Computer Science
- Java
- Analysis skills
Engineering Lead, Scale
Airwallex —London
- Full-time
- Team management
- Leadership
- Communication skills
Senior Python Developer
TreasurySpring —London
- Full-time
- Hybrid work
- Bachelor's degree
- No degree
- Mentoring
- Annual leave
- Employee assistance programme
Quick apply
SENIOR DEVELOPER
United Vanning —London
- Azure
- Computer Science
- English
- Annual leave
Senior ETRM Application Developer
Castleton Commodities International —London
- Full-time
- Oracle
- AWS
- Bachelor's degree
- Annual leave
- Employee discount
Senior Blockchain Engineer - Digital Assets Platform
Citi —London
- Full-time
- Hybrid work
- Doctoral degree
- Computer Science
- Engineering
- Annual leave
- Employee assistance programme
7d
Senior Backend Software Engineer - Application Development
Palantir Technologies —London
- Full-time
- Java
- In-person
- Communication skills
- Work from home
C# / .NET Developer – Front Office, FX & Orchestrade Systems
Margo Conseil —London
- Mentoring
- APIs
- Agile
Contract - Senior Full Stack Developer
Deloitte —London
- Hybrid work
- Software development
- Financial services
Senior Developer (Python)
Allwyn UK —Watford
- Hybrid work
- Analysis skills
- Scripting
- Annual leave
- Employee assistance programme
Quick apply
Senior Software Engineer - DataHub Experience & Control Plane
Bloomberg —London
- Computer Science
- Engineering
- No degree
Lead Developer (Mobile)
Post Office Ltd —London
- Full-time
- Leadership
- Annual leave
- Employee assistance programme
Senior Specialist - Architecture
LTIMindtree —London
- Full-time
- Computer Science
- Engineering
- Bachelor's degree
Quick apply
C++ Senior Developer
Luxoft —London
- Computer Science
- Software troubleshooting
- Engineering
Senior Platform SRE
IG Group —London
- Full-time
- Hybrid work
- Presentation skills
- Mentoring
- Communication skills
- Gym membership
- Life insurance
6d
Full Stack GIS Developer
Informed Solutions —London
- Full-time
- Hybrid work
- Communication skills
- Time management
- Gym membership
- Referral programme
Quick apply

I want to receive the latest job alerts for senior java developer in harlow

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

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 harlow

Java API Developer, Officer

Senior Java Technical Lead - RESTful API, Spring Boot

Senior Technical Specialist

Sr Software Engineer I

Dev Ops - Java/Python - London

Engineering Lead, Scale

Senior Python Developer

SENIOR DEVELOPER

Senior ETRM Application Developer

Senior Blockchain Engineer - Digital Assets Platform

Senior Backend Software Engineer - Application Development

C# / .NET Developer – Front Office, FX & Orchestrade Systems

Contract - Senior Full Stack Developer

Senior Developer (Python)

Senior Software Engineer - DataHub Experience & Control Plane

Lead Developer (Mobile)

Senior Specialist - Architecture

C++ Senior Developer

Senior Platform SRE

Full Stack GIS Developer

I want to receive the latest job alerts for senior java developer in harlow

Related Searches

Explore jobs in more locations

About State Street

Jobseeker tools

Employer Tools

Browse

Stay Connected