Java API Developer, Officer
State Street —London
- Full-time
- Agile
- Financial services
- SDLC
Functional Tester- Mobile
Persistent —London
- Full-time
- Agile
- Flexible schedule
4d
Full Stack Engineer
Blink - The Employee App —London
- Hybrid work
- Communication skills
Quick apply
Senior Associate, Full-Stack Engineer Opportunities
The Bank of New York Mellon Corporation —London
- Full-time
- AI
Blockchain Software Developer - Digital Assets Platform
Citi —London
- Full-time
- Hybrid work
- Computer Science
- Engineering
- Master's degree
- Annual leave
- Employee assistance programme
7d
Lead SRE - Chase UK
JPMorganChase —London
- Full-time
- Java
- AWS
- Software development
Senior Game Mathematician
Push Gaming —London
- Hybrid work
- Microsoft Excel
- Java
- Maths
7d
Development Team Lead – Client Facing Technology
TP ICAP —London
- Full-time
- Management
- Databases
- AWS
Senior Build Engineer
Smart Communications —London
- DevOps
- Java
- Analysis skills
Lead Web3 Engineer - Digital Assets Platform
Citi —London
- Full-time
- Hybrid work
- Doctoral degree
- Computer Science
- Software troubleshooting
- Annual leave
- Employee assistance programme
7d
Technical Lead
London Stock Exchange Group —London
- Full-time
- Customer service
- English
- Software development
Lead AI Software Engineer
Vodafone —London
- Full-time
- AI
- Leadership
- Communication skills
3d
FX Client Platforms - Senior UI Software Engineer (Vice President)
Citi —London
- Full-time
- Hybrid work
- Mentoring
- AI
- Communication skills
- Annual leave
- Employee assistance programme
6d
Production AI Engineer - Vice President
Citi —London
- Full-time
- Hybrid work
- Computer Science
- Master's degree
- Analysis skills
- Annual leave
- Employee assistance programme
Senior SW Engineer Java/Ruby
The Currency Cloud Services Limited —London
- Software troubleshooting
- Mentoring
- AI
Quick apply
Senior Software Engineer, Banking Connectivity
Ripple —London
- Full-time
- AI
Quick apply
Quant Developer - AHL
Man Group —London
- Engineering
- Maths
- Software development
- Annual leave
- Sick pay
Quick apply
Senior Software Engineer
Csp U.K. —London
- £98,000 - £102,000 a year
- Full-time
- Databases
- Mentoring
- Agile
- Free parking
Quick apply
2h

Related jobs to explore

Based on your search for senior java developer

Java Developer – Algo Development Technology (Equities)
Millennium Management —London
Build and evolve real-time algorithmic trading systems and execution platforms in a fast-paced environment. Our people are empowered with both independence and…
Software Engineer
Investa —London
If you’re passionate about building best-in-class products to tackle complex financial challenges and you excel in a fast-paced, collaborative environment, we…
£60,000 - £85,000 a year
Quick apply
13d

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

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 walthamstow, gtl

Java API Developer, Officer

Functional Tester- Mobile

Full Stack Engineer

Senior Associate, Full-Stack Engineer Opportunities

Blockchain Software Developer - Digital Assets Platform

Lead SRE - Chase UK

Senior Game Mathematician

Development Team Lead – Client Facing Technology

Senior Build Engineer

Lead Web3 Engineer - Digital Assets Platform

Technical Lead

Lead AI Software Engineer

FX Client Platforms - Senior UI Software Engineer (Vice President)

Production AI Engineer - Vice President

Senior SW Engineer Java/Ruby

Senior Software Engineer, Banking Connectivity

Quant Developer - AHL

Senior Software Engineer

Related jobs to explore

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

Related Searches

Explore jobs in more locations

About State Street

Jobseeker tools

Employer Tools

Browse

Stay Connected