WJ Test No Industry

The opportunity

We're looking to register interest in future Mid-level React Developer opportunities across our UK offices — roles where you could contribute to building modern, scalable web applications for businesses driving innovation across technology, engineering and life sciences.

Roles of this type could sit within collaborative, agile development teams working on cloud-native solutions. You'd have the chance to deliver independent features, collaborate across distributed systems and microservices architectures, and grow your expertise in contemporary front-end and full-stack technologies. This is a chance to work on meaningful projects while developing your craft alongside experienced engineers.

Role overview

• Locations: Worcester, Manchester, Leeds, Bristol (hybrid working)
• Type: Contract · Full-time
• Day Rate: £250–280 per day
• Experience: 5–10 years
• Technologies: React, JavaScript, APIs, Microservices, Azure, AWS, Docker, Kubernetes, CI/CD

What you would do

Typical responsibilities could include:

• Building and maintaining React-based user interfaces, delivering clean, performant code
• Developing front-end features using modern JavaScript and React best practices
• Integrating with REST APIs and microservices backends
• Collaborating with back-end teams across .NET, Java, and Spring Boot environments
• Contributing to CI/CD pipelines and containerized deployments (Docker, Kubernetes)
• Participating in code reviews and helping raise development standards within your team
• Working within agile sprint cycles and contributing to technical discussions and planning

What you could bring

Most roles of this type require the following:

Must-have

• 5–10 years' software development experience, including hands-on React expertise
• Strong JavaScript fundamentals and proficiency with modern ES6+ patterns
• Experience building APIs or consuming REST services
• Working knowledge of microservices and distributed systems architecture
• Familiarity with containerization (Docker) and cloud platforms (Azure or AWS)
• Understanding of CI/CD practices and deployment pipelines
• Bachelor's degree in Computer Science or equivalent professional experience
• Right to work in the United Kingdom

Nice-to-have

• Meta Front-End Developer Certificate or JavaScript Certification (JSE/JSA)
• Experience with freeCodeCamp Front End Libraries or similar hands-on React training
• Agile/Scrum methodology experience
• Exposure to Kubernetes, Terraform, or infrastructure-as-code tools
• Familiarity with .NET, Java Spring Boot, or other back-end frameworks
• Experience with SAP systems, data pipelines, or cloud architecture

What could be on offer

Most roles of this type offer the following, dependent on the industry and seniority of the role:

• Day rate of £250–280, depending on experience and seniority
• Flexible working across our UK locations (Worcester, Manchester, Leeds, Bristol) with hybrid flexibility
• Pension contribution
• Flexible compensation options
• 20+ days paid time off per year
• Opportunity to work on cutting-edge technology stacks and modern cloud architectures
• Exposure to diverse industry sectors — technology, engineering and life sciences
• Potential progression toward senior-level responsibility, where supported by project outcomes and your development

About the company

SThree is the global STEM workforce consultancy.
We advise businesses, build expert teams and deliver project solutions to outpace tomorrow, together.

Across the UK, we connect talented specialists with cutting-edge opportunities across technology, engineering and life sciences, supported by our offices in London, Birmingham, Manchester, Glasgow and Leeds.

How to register interest

If you are interested in being added to our database to be considered for future opportunities, registering is quick and easy. No cover letter required. We will be in touch when we are instructed on these roles to discuss the next step in your career.

Disclaimer:
Please note that the content of this advert does not represent a live vacancy or any guarantee of future vacancies, and by responding to this advert you agree to us adding your details to our database for future opportunities.

Unfortunately, job fraud is becoming more common. Beware of such scams:

• We will never ask for personal information (such as a copy of your ID, bank details, or social security number) via WhatsApp or during a video call.
• If you're unsure whether a vacancy or contact person is legitimate, please reach out to us directly using the official contact details on our website.