Java API Design Engineer (Digital)

Job title:

Java API Design Engineer (Digital)

Company

BT

Job description

Hybrid 3 days a week together out of our Belfast office (flexible 2 days remote wherever).Why This Job MattersIn this role, you will play a crucial part in delivering BT’s Simplify transformation. You will be at the forefront of designing and engineering the next generation of technology to support BT’s new IT architecture. Based on agile engineering, DevOps, and cloud-native principles, these software platforms offer a comprehensive set of business capabilities across eCommerce, customer relationship management, quoting, product catalogue, orchestration, service assurance, and IDAM. Your focus will be on developing API-driven integrations for the new IT, supported by Microservices, to underpin core integration capabilities. This involves building a standardised set of integration capabilities across the value and volume IT components.You will concentrate on DevOps engineering best practices and build across SaaS vendor platforms as well as Cloud Native IaaS/PaaS applications on our strategic Cloud Platforms. Collaboration and engagement with your value stream stakeholders will be key to understanding and interpreting priorities, working with value stream product owners to prioritise their demands into your backlogs. You will be the subject matter expert for API and Microservices-driven integration work.Responsibilities

• Technical Solutions: Create and implement technical solutions for a domain or cross-domains/portfolios of work within a specific technology area autonomously, understanding how solutions impact systems internally and externally, and assessing the impact of change.
• Problem Resolution: Deliver resolutions to complex, cross-domain problems or those of high impact to customers.
• Standards Improvement: Identify opportunities to improve standards of practice within a project, continuously enhancing ways of working. Provide sound technical expertise to consult on significant components of a technical solution within a specific domain or cross-domain.
• Quality Assurance: Provide technical quality assurance over the work of other engineers through a matrix team structure.
• Integration Capabilities: Design and deliver strategic integration capabilities using Microservices and TMF open APIs where appropriate, or BT-defined open APIs as part of the Enterprise services/Integration squad.
• Software Engineering: Responsible for software engineering integration patterns across a wide variety of SaaS, IaaS, and PaaS-based applications.
• Team Leadership: Lead a squad of cross-functional developers and QA focused on building strategic integration capabilities using ReSTful API and Microservices.
• Deployment Architecture: Accountable for cloud-native deployment architecture for integration components, with a focus on highly scalable and resilient architectures.
• Roadmap and Backlog: Create, maintain, and regularly iterate a roadmap and backlog for the Integration squad.
• Operational Monitoring: Set up operational monitoring and reporting with engagement from the DevOps squad for the new IT Integration stack.
• User Feedback: Regularly seek feedback from users and use it, coupled with quantitative data, to iterate rapidly.
• Efficiency Delivery: Responsible for unlocking and delivering benefits/efficiencies in the squad, with assistance from squad members as required.

Skills

• Architecture and Solution Design: Skills in architecture definition and solutions design involving multiple components across architectural domains.
• Integration Key Areas: Knowledge of ReSTful API, Microservices, SOA web services, messaging, and event-driven architectures.
• Cloud: Good knowledge and work experience in AWS. Strong knowledge of authentication and identity-related technologies and protocols is an advantage – e.g. OIDC, OAuth2.
• Web Technologies and Containerisation: Proficiency in Java Spring, Docker, Kubernetes, with a heavy focus on automation and CI/CD practices.
• Agile Software Engineering: Strong skills and experience in building software in an agile team.
• User Story Decomposition and Management: Ability to take a complex design and break it down into features, stories, and tasks – working with the Agile SCRUM team to ensure a quality backlog with well-defined acceptance criteria that can be engineered.
• Growth Mindset: Reflect and learn constantly, and have a growth mindset – Build, measure, learn.
• IT Experience: Experience in the Enterprise telco business with specialist knowledge in at least one of Fixed & Mobile products, networks, sales, service, marketing, digital experiences.
• API and Data Monetisation: Understanding of API and Data monetisation options.
• Cloud Infrastructure as Code: Experience in Cloud Infrastructure as Code using Terraform and/or AWS CloudFormation would be ideal

This role offers an exciting opportunity to be at the heart of BT’s technological transformation, working with cutting-edge technologies and leading a dynamic team. If you are passionate about technology and innovation, we would love to hear from you!Benefits:

• Competitive salary
• 25 days annual leave (plus bank holidays)
• 10% on target bonus
• Life Assurance
• Pension scheme
• Direct share scheme
• Option to join the Healthcare Cash Plan or other benefits such as dental insurance, gym memberships etc.
• 50% off EE mobile pay monthly or SIM only plans
• Exclusive colleague discounts on our latest and greatest BT broadband packages
• BT TV with TNT Sports and NOW Entertainment
• 30% discount for friends and family on EE mobile pay monthly and SIM only plans

Our leadership standardsLooking in:
Leading inclusively and Safely
I inspire and build trust through self-awareness, honesty and integrity.
Owning outcomes
I take the right decisions that benefit the broader organisation.Looking out:
Delivering for the customer
I execute brilliantly on clear priorities that add value to our customers and the wider business.
Commercially savvy
I demonstrate strong commercial focus, bringing an external perspective to decision-making.Looking to the future:
Growth mindset
I experiment and identify opportunities for growth for both myself and the organisation.
Building for the future
I build diverse future-ready teams where all individuals can be at their best.About usBT Group was the world’s first telco and our heritage in the sector is unrivalled. As home to several of the UK’s most recognised and cherished brands – BT, EE, Openreach and Plusnet, we have always played a critical role in creating the future, and we have reached an inflection point in the transformation of our business.Over the next two years, we will complete the UK’s largest and most successful digital infrastructure project – connecting more than 25 million premises to full fibre broadband. Together with our heavy investment in 5G, we play a central role in revolutionising how people connect with each other.While we are through the most capital-intensive phase of our fibre investment, meaning we can reward our shareholders for their commitment and patience, we are absolutely focused on how we organise ourselves in the best way to serve our customers in the years to come. This includes radical simplification of systems, structures, and processes on a huge scale. Together with our application of AI and technology, we are on a path to creating the UK’s best telco, reimagining the customer experience and relationship with one of this country’s biggest infrastructure companies.Change on the scale we will all experience in the coming years is unprecedented. BT Group is committed to being the driving force behind improving connectivity for millions and there has never been a more exciting time to join a company and leadership team with the skills, experience, creativity, and passion to take this company into a new era.A FEW POINTS TO NOTE:Although these roles are listed as full-time, if you’re a job share partnership, work reduced hours, or any other way of working flexibly, please still get in touch.We will also offer reasonable adjustments for the selection process if required, so please do not hesitate to inform us.DON’T MEET EVERY SINGLE REQUIREMENT?Studies have shown that women and people who are disabled, LGBTQ+, neurodiverse or from ethnic minority backgrounds are less likely to apply for jobs unless they meet every single qualification and criteria. We’re committed to building a diverse, inclusive, and authentic workplace where everyone can be their best, so if you’re excited about this role but your past experience doesn’t align perfectly with every requirement on the Job Description, please apply anyway – you may just be the right candidate for this or other roles in our wider team.

Expected salary

Location

Belfast

Job date

Wed, 16 Jul 2025 22:33:05 GMT

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