Senior Full Stack Developer - UK Security Clearance Eligibility required.
Role details
Job location
Tech stack
Job description
We are hiring multiple Senior Java / React Full Stack Developers to join a growing Software Engineering practice, supporting a large-scale modernisation and AI-enabled transformation programme.
This is a hands-on, client-facing role where you will help shape and deliver modern software solutions within complex environments working on what is effectively a greenfield build within a brownfield ecosystem, introducing new architecture, tooling, and engineering standards to enable long-term scalability.
You will report into a Principal Software Engineer, contributing to both delivery and the continued growth of Appvia's software engineering capability.
Interview Process - 2 Stage
- Discovery conversation with Talent Acquisition
- Technical Interview with Engineering Team
- Final Interview with Leadership, * Design and deliver modern Java / React applications within complex systems
- Contribute to modernisation of legacy systems into scalable, service-based architectures
- Apply DDD principles to improve system structure and maintainability
- Improve development workflows, testing approaches, and engineering standards
- Collaborate with platform and test engineers to deliver integrated, end-to-end solutions
- Introduce and embed modern tooling and AI-assisted development practices
- Act as a senior consultant within delivery teams, influencing engineering best practices
- Support teams in building scalable, maintainable, and high-quality software
Technical Skills
Core technologies:
- Java / Spring Boot
- React / Node.js
- HTML / CSS / JavaScript
- MongoDB
- Docker / Kubernetes
- Maven
- GitLab
Nice to have:
- Playwright or modern testing frameworks
- GovUK Design System / UI Framework
Requirements
You must be eligible for UK Security Clearance (SC) :
- British Passport or ILR
- Resided in the UK for the last 5 years
- No criminal record or financial irregularities
Requirements
About You
You are a strong full-stack engineer with a consulting mindset, comfortable working in complex environments and influencing how software is designed and delivered.
You will bring:
- Strong experience with React and modern front-end development
- Strong backend experience with Java (Spring Boot)
- A solid grounding in Domain Driven Design (DDD)
- Experience working with microservices architectures
- Full-stack capability across UI, API, and data layers
- Experience working in cloud-native environments (ideally AWS)
- Interest or experience in AI-assisted development to improve productivity and quality
- Confidence working directly with stakeholders and guiding technical decisions
Benefits & conditions
Why join Appvia?
We are a self-funded, London based startup; providing businesses with a fast and secure way to deploy containerised applications into the cloud.
We are on a mission to enable organisations to make cloud-based software delivery simple and efficient, whilst having the insights into costs, security and cadence. As a company that holds customers at the heart of everything we do, we are looking for candidates that want to make a real change to how Dev and Ops is working in the industry.
With us our customers, like the UK's Home Office & Bank of England, are harnessing cloud-native technologies, limiting the challenges of infrastructure management and rapidly delivering digital products.
What's on offer?
-
? Work-life balance
-
Flexible working with core hours of 10-4pm because we know life happens outside of work
-
Hybrid working - only one compulsory office day per month
-
25 days' holiday a year, plus bank holidays
-
An additional day off for your birthday
-
Enhanced maternity and paternity to full pay
-
Workplace Nursery Benefit to help working parents
For your well-being
- Full Private Healthcare cover for you with partners and children covered 50%
- Death in Service
- Cycle to Work scheme
- Electric Car Scheme
- Pension plus a salary sacrifice option for even greater savings
- Employee Assistance Programme
- Free hygiene products available in the London office
Mental health support
- Free therapy through AXA
- Access to the Headspace App
- Trained Mental Health First Aiders
Other fun perks
- Learning budget of £1,000 a year
- Your own MacBook Pro while you work at Appvia
- Dog friendly office
- Wear what makes you comfortable
- Free snacks in the office
- Pool table & ping pong table
- Regular team socials, board game nights, industry meetups and more!
