Java API Developer, Officer
State Street —London
- Full-time
- Agile
- Financial services
- SDLC
Senior Software Engineer (Java) - Contract
Expenti —London
- Remote
- Software troubleshooting
- English
- Databases
1d
Senior Software Developer II - Full-Stack
RELX —London
- Full-time
- Mentoring
1d
Senior Developer - iSAM Vector
iSAM Securities —London
- Software development
- Linux
- AI
14d
Senior Software Engineer
The Currency Cloud Services Limited —London
- DevOps
- AWS
- Communication skills
Quick apply
Senior TypeScript CI/CD Automation Engineer
Luxoft —London
- English
- Team management
- Software development
8d
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 Java Developer
Leute Passen India Private Limited —London
- £55,104.80 - £60,000.00 a year
- Full-time
- Hybrid work
- Analysis skills
- Continuous improvement
- Mentoring
Quick apply
8h
Senior Java Developer
Cognizant —London
- Full-time
- Hybrid work
- Software troubleshooting
- Java
- AWS
4d
Senior Java Developer - Fixed Income Algo Technology, VP
Citi —London
- Full-time
- Hybrid work
- Computer Science
- Bachelor's degree
- Communication skills
- Annual leave
- Employee assistance programme
21h
Java Developer
Capgemini Sogeti —London
- Hybrid work
- Java
- Mentoring
- SDLC
5d
Senior Software Engineer
Mastech Innovation —London
- £85,000 a year
- Azure
- Java
- AWS
Quick apply
6h
Java Developer
Capgemini —London
- Hybrid work
- Java
- Mentoring
- SDLC
5d
Senior Software Engineer
Csp U.K. —London
- £98,000 - £102,000 a year
- Full-time
- Databases
- Mentoring
- Agile
- Free parking
Quick apply
8d
Full Stack Java Web Developer
Luxoft —London
- Computer Science
- Software troubleshooting
- English
1d
Senior Software Developer II - Full-Stack
LexisNexis Risk Solutions —London
- Full-time
- Mentoring
1d
Manager, Software Engineering
Park Place Technologies Limited —London
- Hybrid work
- Computer Science
- Analysis skills
- Bachelor's degree
7d
Senior AI Software Engineer
Vodafone —London
- Full-time
- Software troubleshooting
- Mentoring
- AI
7d

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.

Explore jobs in more locations

senior java developer jobs near harlow

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 Software Engineer (Java) - Contract

Senior Software Developer II - Full-Stack

Senior Developer - iSAM Vector

Senior Software Engineer

Senior TypeScript CI/CD Automation Engineer

Senior SW Engineer Java/Ruby

Senior Software Engineer, Banking Connectivity

Quant Developer - AHL

Senior Java Developer

Senior Java Developer

Senior Java Developer - Fixed Income Algo Technology, VP

Java Developer

Senior Software Engineer

Java Developer

Senior Software Engineer

Full Stack Java Web Developer

Senior Software Developer II - Full-Stack

Manager, Software Engineering

Senior AI Software Engineer

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