Senior Java Developer

  • Category: IT Engineer & Developer Jobs
  • Location: London, England
  • Job Type: Full Time / Part Time
  • Salary: Estimated: $ 25K to 33K
  • Published on: 2025/09/21

Team: Engineering and Delivery

Location: Paddington, London (minimum four days in the office per week)

Employment status: Full-time, permanent

Reporting to: Head of Engineering

Working week: Monday - Friday

Salary: £70,000 - £80,000

About HyperJar

HyperJar has a world-first product which we aim to make into the world’s greatest budgeting app. We are leading the development of consumer digital finance and providing an app where consumers can have a real connection with the brands they love.

About the role:

We are expanding our software engineering team and are seeking a skilled and experienced Java Developer. We are seeking a senior-level developer, so you must have at least 8-10 years of experience to be considered for the role.

The ideal candidate will have a strong foundation in Java development, with extensive experience in building scalable, high-performing applications and services using Spring Boot.

Proficiency in containerization with Docker, cloud services with AWS, and a background in the financial or banking industries is highly desirable.

This role involves working closely with cross-functional teams to develop and enhance applications that meet the complex needs of our business and clients.

Key Responsibilities:
• Design and develop robust, scalable, and secure backend services using Java and Spring Boot.
• Implement containerized services using Docker to ensure consistency across different environments and streamline deployment processes.
• Leverage AWS cloud services to build and maintain highly available and scalable applications, while optimizing performance and cost.
• Collaborate with front-end developers and project managers to integrate back-end services with front-end applications (Mobile & Web).
• Participate in the entire application lifecycle, focusing on coding, debugging, and providing robust solutions.
• Engage in financial/banking domain-specific solution development, understanding and implementing regulatory and compliance requirements.
• Maintain up-to-date knowledge of technology standards, industry trends, and emerging technologies.
• Ensure code quality, organization, and automation by adhering to best practices in coding standards and documentation.

You should apply if you have:
• Minimum of eight to ten years experience
• Proven experience as a Java Developer with hands-on experience designing and developing applications using Java 11+.
• Expertise in Spring Boot framework and building RESTful services.
• Experience designing and implementing event-driven systems with Kafka, RabbitMQ, Axon Framework, etc.
• Proficient in Docker and containerization principles, with practical experience in deploying containerized applications.
• Experience with AWS cloud services (e.g., ECS, S3, RDS, etc) and understanding of cloud architecture principles.
• Previous experience in the financial or banking sector, with a strong understanding of financial products and compliance standards.
• Strong analytical and problem-solving skills, with the ability to work in a fast-paced, evolving environment.
• Excellent communication and teamwork abilities.
• Knowledge of front-end technologies (e.g., React, SwiftUI, Kotlin, etc) is a plus.
• Experience with Golang is a plus.

How to apply

Please click on the ‘apply’ button, you will be asked to provide an updated CV. For further information about this vacancy contact us at: people@hyperjar.com.

We will not be offering UK work visa sponsorship for this role. Candidates will need an existing, permanent right to work in the UK.

Working at HyperJar

We value our team and are proud to offer some great benefits:
• A performance-based employee bonus scheme.
• 25 days annual leave plus bank holidays, a day off on your birthday, and an additional day per year of tenure to a maximum of 30.
• Critical illness and life insurance cover.
• AXA PPP Health Insurance, including gym offers.
• Cycle-to-work scheme.
• Referral bonus scheme.

At HyperJar we are proud of our in-office culture. It makes a real difference to the working atmosphere and maximises collaboration in and across teams. This is critical to how we work and learn. Also, we think it makes for a great workplace!

Equity, diversity, and inclusion

HyperJar’s mission is to make a positive impact on people’s lives, making it easier for everyone to control their money.

HyperJar’s commitment to equity, diversity, and inclusion is a key part of this; it helps us better serve our customers, employees, and business partners from every background.

We are constantly learning and striving to do better, and we expect all staff to actively take part in this process.

Data Privacy

As part of our recruitment process, HyperJar Limited collects and processes personal data relating to job applicants.

We are committed to being transparent about how we collect and use this data and to meeting our data protection obligations. To read more click here.


Company Name: HyperJar

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