Java API Developer, Officer
State Street —London
- Full-time
- Agile
- Financial services
- SDLC
Senior TypeScript CI/CD Automation Engineer
Luxoft —London
- English
- Team management
- Software development
1d
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
5d
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
1d
Manager, Software Engineering
Park Place Technologies Limited —London
- Hybrid work
- Computer Science
- Analysis skills
- Bachelor's degree
8h
Front Office Software Engineer
CMC Markets —London
- Full-time
- Computer Science
- Maths
- Mentoring
6h
Low Latency Developer
Barclays —London
- Mentoring
- Software development
- Communication skills
1d
Senior AI Software Engineer
Vodafone —London
- Full-time
- Software troubleshooting
- Mentoring
- AI
1h
Staff Engineer, Credit Technology
Ares Management —London
- Full-time
- Computer Science
- Databases
- Bachelor's degree
6h

Other jobs to consider

Find your next job by exploring related positions.

Senior Java Engineer
InfoSum —London
You will work closely with cross-functional teams, including frontend engineers, product representatives and infrastructure teams, to deliver robust and…
Quick apply
Senior Software Engineer I - KYC Experience
Wise —London
Product-oriented thinking with a strong product mindset and passion for user experience, you prioritise work with the customers in mind and make data-driven…
£87,500 - £111,000 a year
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 TypeScript CI/CD Automation Engineer

Technical Lead

Lead AI Software Engineer

Production AI Engineer - Vice President

Senior SW Engineer Java/Ruby

Senior Software Engineer, Banking Connectivity

Quant Developer - AHL

Senior Software Engineer

Manager, Software Engineering

Front Office Software Engineer

Low Latency Developer

Senior AI Software Engineer

Staff Engineer, Credit Technology

Other jobs to consider

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