Junior Software Developer jobs in United Kingdom

(TypeScript, JavaScript, Node)

Location: Hybrid working within Hampshire / West Sussex

Salary: Competitive + benefits

We're working with a fast-growing UK SaaS technology company that builds data‑driven digital products used by commercial teams to better understand and engage with their customers. They are now looking for an experienced technical lead full stack developer to play a key role in shaping and delivering their next generation of customer‑facing platforms.

This is a hands‑on technical leadership role where you'll be involved from early design through to production delivery, working with a modern cloud‑based stack and deploying to live environments on a daily basis.

• Lead technical delivery across a high‑performing development squad (10+)
• Contribute to solution design, system architecture and domain modelling
• Build proof‑of‑concepts and spike complex or uncertain areas of work
• Break down requirements into deliverable epics and user stories alongside product and initiative managers
• Develop and deliver production‑ready code across the full stack
• Ensure high standards of quality, maintainability, performance and security
• Support and improve live systems once deployed
• Influence technical direction, tooling and best practice across the wider engineering function

You’ll work with a modern stack including:

• Node.js microservices
• JavaScript & TypeScript
• Vue.js
• Redis, SQL Server & Snowflake
• AWS cloud infrastructure
• CI/CD pipelines and DevSecOps practices

• Strong full stack development experience (ideally 10+ years)
• 5+ years of JavaScript and TypeScript experience
• Solid background in system design and scalable architectures
• Experience building large, production SaaS platforms
• A clean‑code mindset (SOLID principles, design patterns, testable code)
• Experience working in mature CI/CD and continuous deployment environments
• A commercial mindset when designing and delivering software
• Excellent collaboration skills and confidence working with stakeholders
• Interest in using AI to accelerate and improve software development
• A passion for performance, security and engineering best practice
• Degree in Computer Science or equivalent real‑world experience

• Competitive salary and benefits package
• Hybrid working (1 day per week in the Fareham office)
• Opportunity to join a scaling UK SaaS business
• Strong engineering culture with a focus on quality and continuous improvement
• Supportive, collaborative working environment
• Community and charity initiatives, including volunteer days

Send your CV across to me on email (url removed) or call (phone number removed) for more information.

Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy