Senior Java Software Engineer

Mastek; Leeds; Hybrid; GBP 70,000 - 100,000; Full time

Benefits offered by this job

Hybrid working model

Private medical insurance

Pension scheme

Life assurance

EAP

Gym and wellbeing

Learning and development opportunities

Job summary

Mastek in Leeds is seeking an experienced Senior Java Developer to join a major Banking & Financial Services programme. You will design, build, test and maintain enterprise-grade applications in cloud-native environments using Java, AWS, and modern DevOps practices.

Collaborate with architects, engineers, product teams, and stakeholders to deliver secure, scalable solutions. You will mentor junior developers and contribute to continuous improvement across delivery processes.

Qualifications

• Experience developing Java/Kotlin applications.
• Experience with AWS cloud technologies.
• Experience with Node.js and TypeScript.
• Strong SQL and database development skills.
• Experience with relational and NoSQL databases, particularly DynamoDB.
• Strong understanding of software engineering best practices, design patterns, and application architecture.
• Experience designing and maintaining CI/CD pipelines.
• Strong knowledge of Git and GitHub Actions.
• Experience with Docker and containerised deployment approaches.
• Understanding of DevOps and DevSecOps principles.
• Strong understanding of AWS security best practices
• Excellent communication, stakeholder management, and collaboration skills.
• Previous experience working within Banking, Financial Services, or other highly regulated environments.
• Experience supporting cloud migration, platform modernisation, or digital transformation programmes.
• Knowledge of secure software development lifecycle practices.

Responsibilities

• Design, develop, test, and maintain enterprise-grade applications using Java and related technologies.
• Build and enhance cloud-native solutions using AWS services and modern development practices.
• Collaborate with architects, engineers, product teams, and stakeholders to deliver business-critical solutions.
• Contribute to solution architecture and technical design discussions.
• Develop and consume APIs to support integration between business systems and applications.
• Implement secure coding practices and ensure alignment with organisational security standards.
• Build and maintain CI/CD pipelines to support automated deployment and testing activities.
• Support DevOps and DevSecOps initiatives across the development lifecycle.
• Monitor, troubleshoot, and optimise application performance and reliability.
• Participate in code reviews and champion engineering best practices.
• Mentor and support junior developers within the team.
• Contribute to continuous improvement initiatives across software engineering and delivery processes.

Skills

Java

Kotlin

SQL

DynamoDB

NoSQL

CI/CD

Git

DevOps

DevSecOps

AWS security

Education

Bachelor's degree in Computer Science, Software Engineering, Information Technology, or a related discipline

Tools

AWS

Docker

Node.js

TypeScript

GitHub Actions

Job description

Please note this role requires 3 days a week at client site due to the nature of work.

About the Company

Mastek Limited is a global provider of enterprise AI, digital, and cloud services, enabling clients to achieve measurable and sustainable returns on their technology investments. The company has a presence in over 40 countries and a skilled workforce of close to 5,000 employees. Through its "Lead with AI" approach, Mastek integrates intelligence across its solutions and operations, enabling organisations to accelerate transformation using ethical, scalable, and domain-driven AI adoption.

Mastek partners with industry leaders including Oracle, Salesforce, Microsoft, AWS, Snowflake, and Databricks, serving key sectors such as Healthcare, Retail, Manufacturing, Higher Education, and Financial Services. With its core values of Trust, Value, and Velocity, Mastek empowers organisations to transform their business through innovative technology solutions while fostering a culture of collaboration, growth, and continuous learning.

About the Role

We are seeking an experienced Senior Java Developer to join a major Banking & Financial Services programme based in Leeds. This role is ideal for a highly skilled software engineer who thrives within cloud-native environments and enjoys designing, building, and delivering secure, scalable, and high-performing applications.

You will work as part of a multidisciplinary team, contributing to architecture, software development, cloud engineering, security, and DevOps initiatives. The successful candidate will bring strong technical expertise across Java development, AWS cloud services, CI/CD practices, and modern engineering principles while supporting and mentoring junior team members.

Responsibilities

• Design, develop, test, and maintain enterprise-grade applications using Java and related technologies.
• Build and enhance cloud-native solutions using AWS services and modern development practices.
• Collaborate with architects, engineers, product teams, and stakeholders to deliver business-critical solutions.
• Contribute to solution architecture and technical design discussions.
• Develop and consume APIs to support integration between business systems and applications.
• Implement secure coding practices and ensure alignment with organisational security standards.
• Build and maintain CI/CD pipelines to support automated deployment and testing activities.
• Support DevOps and DevSecOps initiatives across the development lifecycle.
• Monitor, troubleshoot, and optimise application performance and reliability.
• Participate in code reviews and champion engineering best practices.
• Mentor and support junior developers within the team.
• Contribute to continuous improvement initiatives across software engineering and delivery processes.

Required Skills

• Strong commercial experience developing applications using Java and/or Kotlin.
• Experience working with AWS cloud technologies
• Experience with Node.js and TypeScript.
• Strong SQL and database development skills.
• Experience working with relational and NoSQL databases, particularly DynamoDB.
• Strong understanding of software engineering best practices, design patterns, and application architecture.
• Experience designing and maintaining CI/CD pipelines.
• Strong knowledge of Git and GitHub Actions.
• Experience with Docker and containerised deployment approaches.
• Understanding of DevOps and DevSecOps principles.
• Strong understanding of AWS security best practices
• Excellent communication, stakeholder management, and collaboration skills.
• Previous experience working within Banking, Financial Services, or other highly regulated environments.
• Experience supporting cloud migration, platform modernisation, or digital transformation programmes.
• Knowledge of secure software development lifecycle practices.

Qualifications

• Bachelor's degree in Computer Science, Software Engineering, Information Technology, or a related discipline, or equivalent practical experience.
• Relevant cloud or software engineering certifications are advantageous.

Why Join Us?

• Work on large-scale digital transformation initiatives within the Banking & Financial Services sector.
• Collaborate with high-performing engineering, architecture, and cloud teams.
• Gain exposure to modern AWS-native technologies and engineering practices.
• Contribute to complex, business-critical solutions that deliver real customer value.
• Access continuous learning, professional development, and career progression opportunities.
• Be part of a collaborative and inclusive environment that encourages innovation and technical excellence.

If you are passionate about building secure, scalable software solutions and want to play a key role in delivering modern cloud-based platforms within a leading financial services environment, we would love to hear from you.

Our UK Benefits Include:

• Competitive salary and annual bonus opportunities
• Hybrid and flexible working options
• Generous annual leave entitlement, plus bank holidays
• Company pension scheme with employer contributions
• Private medical insurance ((for self & dependents))
• Life assurance cover
• Employee Assistance Programme (EAP)
• Gym and wellbeing support initiatives
• Learning and development opportunities, including access to certifications and training
• Employee recognition and reward programmes
• Cycle to Work scheme
• Enhanced family-friendly policies

About Mastek

Mastek is a trusted digital engineering and cloud transformation partner delivering innovative solutions to public and private sector organisations globally. We foster an inclusive, collaborative culture where diverse perspectives are valued, and every employee is empowered to make an impact.

At Mastek, we are committed to building a diverse workforce and creating an inclusive environment where everyone can succeed. We welcome applications from all backgrounds and are proud to be an equal opportunities employer.