Senior Java Software Engineer

Harrington Starr; Greater London; On-site; GBP 80,000 - 150,000; Full time

Job summary

Join a cutting-edge global fintech innovator as a Senior Software Engineer II, where you will design and operationalize large-scale AI and ML-driven applications. This high-impact role requires expertise in Java and cloud-native technologies, offering a chance to shape the future of financial decision-making. Collaborate with top-tier professionals, mentor junior developers, and drive innovation in a fast-paced environment. This is a fantastic opportunity to make a significant impact in a recognized organization that values creativity and technical leadership.

Qualifications

• 5+ years experience in Java development with strong Spring Boot expertise.
• Leadership experience, mentoring junior developers and driving best practices.

Responsibilities

• Design and build AI and ML-driven applications and APIs.
• Lead development of scalable cloud-native applications using Java and AWS.

Skills

Java

Spring Boot

Cloud-Native Applications

AWS Services

RESTful APIs

Test-Driven Development

CI/CD Practices

Leadership

Communication Skills

Proactive Mindset

Tools

Docker

Kubernetes

AI and ML Frameworks

Job description

Get AI-powered advice on this job and more exclusive features.

This range is provided by Harrington Starr. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

Base pay range

Direct message the job poster from Harrington Starr

Principal Recruitment Consultant - Software Engineering

Senior Software Engineer II – Cloud-Native & AI Solutions | Global Fintech Innovator

We’re partnering with a cutting-edge global fintech company at the forefront of AI-powered decisioning and analytics to find a talented Senior Software Engineer II. This company has recently been recognized with multiple industry awards, including “Best Credit and Risk Solution by a Vendor” and “Data Initiative of the Year,” and continues to redefine how financial institutions leverage data, AI, and cloud technologies to accelerate smarter decision-making.

This is a high-impact role ideal for an experienced engineer who thrives on innovation and is passionate about cloud-native applications, AI/ML product development, and technical leadership within high-performing teams

What You’ll Be Doing:

• Design, build, and operationalize large-scale AI and ML-driven applications and APIs.
• Lead the development of scalable, low-latency cloud-native applications, primarily using Java and AWS services.
• Work collaboratively with architects, cloud engineers, and product leads to shape AI/ML product requirements and roadmaps.
• Contribute to and guide the design and testing of proof-of-concept (POC) initiatives.
• Take technical ownership of assigned projects, mentor junior team members, and drive best practices across the engineering lifecycle.
• Participate in recruitment activities and help shape a high-performing development team.
• Conduct code reviews and ensure high-quality, well-tested code using TDD practices.
• Identify and implement continuous improvements to development processes and tooling.
• Proven experience in Java development with strong Spring Boot expertise.
• Solid background in building cloud-native applications, particularly using AWS services such as S3, SQS, Kinesis, or Apache Flink.
• Strong knowledge of stream processing, low-latency systems, and microservice architectures.
• Demonstrated leadership experience, including mentoring and guiding junior developers.
• Proficient in designing and developing RESTful APIs.
• Deep understanding of test-driven development and CI/CD practices.
• Strong communicator with the ability to articulate complex ideas across technical and non-technical teams.
• A proactive mindset and ability to thrive in a fast-paced, evolving environment.

Bonus Skills (Not Required but Nice to Have):

• Hands-on experience with AI and ML frameworks.
• Working knowledge of Python, Docker, Kubernetes, and modern DevOps tooling.

This is a fantastic opportunity to join an award-winning fintech organization on a global scale, where your contributions will directly influence the development of industry-defining technology.

Contact Ciara Clarke at Harrington Starr for a confidential discussion on this role.

Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Full-time

Job function

Referrals increase your chances of interviewing at Harrington Starr by 2x

Sign in to set job alerts for “Java Software Engineer” roles.

London, England, United Kingdom 4 months ago

London, England, United Kingdom 2 months ago

London, England, United Kingdom 1 day ago

London, England, United Kingdom 2 months ago

London, England, United Kingdom 5 months ago

London, England, United Kingdom 3 weeks ago

London, England, United Kingdom 2 days ago

London, England, United Kingdom 9 hours ago

London, England, United Kingdom 10 months ago

London, England, United Kingdom 2 weeks ago

City Of London, England, United Kingdom 3 weeks ago

Java Engineer - Up to £150,000 + Bonus + Package

Greater London, England, United Kingdom 5 days ago

London, England, United Kingdom 10 hours ago

London, England, United Kingdom 2 weeks ago

London, England, United Kingdom 5 months ago

Software Engineer - Java - Engine by Starling

London, England, United Kingdom 3 weeks ago

Associate / Junior Software Engineer (Full-Stack)

London, England, United Kingdom 2 weeks ago

Founding Engineer (Java Developer) - Up to £135,000 + Bonus

Greater London, England, United Kingdom 1 week ago

Java Software Engineer - Intraday Risk and P&L

London, England, United Kingdom 4 weeks ago

Java Developer – Algorithmic Trading & SOR Technology

London, England, United Kingdom 2 weeks ago

London, England, United Kingdom 6 days ago

Leatherhead, England, United Kingdom 5 days ago

City Of London, England, United Kingdom 2 weeks ago

We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.