Vertex Agility
Full Stack Engineer
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Senior Full Stack Engineer / Tech Lead – Node.js, React & AWS
Location: Warwick, UK
Employment Type: Contract (3 to 5 months, Possibility of extension)
Working Model: Hybrid (3 days/week Onsite)
What You'll Do
- Assess the existing Node.js, React, React Native and AWS-based application and identify areas for improvement.
- Analyse existing architecture, code quality, technical debt, scalability and production stability.
- Define and implement recommendations to stabilise, modularise and future-proof the codebase.
- Improve application architecture to support greater scalability, flexibility and maintainability.
- Take ownership of technical solutions from assessment and design through to implementation.
- Provide technical stewardship and leadership for new product development.
- Work closely with product and engineering stakeholders to translate requirements into robust technical solutions.
- Improve development practices around code quality, testing, releases and production support.
- Investigate and resolve complex production issues and contribute to reducing recurring incidents.
- Establish appropriate engineering standards, patterns and best practices across the codebase.
- Collaborate closely with other engineers and stakeholders and operate effectively in a fast-paced environment.
- Help create a more modular and resilient platform that can evolve as product requirements grow.
Required Skills & Experience
Backend
- Strong commercial experience with Node.js.
- Strong understanding of backend architecture, APIs and scalable application design.
- Experience building and maintaining production-grade applications.
- Strong understanding of REST APIs, integrations and asynchronous processing.
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Frontend
- Strong experience with React.js and TypeScript.
- Experience developing modern, scalable frontend applications.
- Experience with React Native is highly desirable.
AWS / Cloud
- Strong hands-on experience with AWS.
- Experience designing and supporting applications running on cloud infrastructure.
- Good understanding of serverless and managed AWS services.
- Experience with services such as Lambda, SQS, Cognito, S3, RDS or similar is highly desirable.
Architecture & Engineering
- Strong experience with system design and software architecture.
- Proven ability to work with and improve existing/legacy codebases.
- Experience with modularisation, refactoring and reducing technical debt.
- Strong understanding of scalability, reliability and maintainability.
- Experience identifying root causes of production issues rather than relying solely on short-term fixes.
- Good understanding of CI/CD, automated testing and release quality.
- Experience with Infrastructure as Code / Terraform is desirable.
- Strong understanding of multi-tenant applications is a plus.
What We're Looking For
We are looking for someone who is more than an individual contributor who simply completes tickets.
You should be comfortable taking ownership of a technical area, challenging existing approaches where appropriate, making architectural decisions, and then rolling up your sleeves and implementing them.
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The ideal person will be:
- Hands-on and technically strong.
- Comfortable operating at Senior Engineer / Tech Lead level.
- Strong in both frontend and backend development.
- Comfortable working across application code, architecture and AWS.
- Experienced in stabilising and modernising existing systems.
- Strong at troubleshooting complex production issues.
- Able to make pragmatic technical decisions and explain them clearly.
- Comfortable working with autonomy and taking ownership.
- A strong communicator who can collaborate effectively with product and engineering stakeholders.
- Able to work at pace without compromising engineering quality.
Why Join?
- Take ownership of meaningful technical challenges across Node.js, React, React Native and AWS.
- Have a direct impact on improving the platform's stability, scalability and architecture.
- Play a key role in shaping engineering standards and technical direction.
- Work in a collaborative environment where ownership, autonomy and technical leadership are valued.
- Opportunity to modernise an existing platform and deliver tangible engineering improvements.
Core Technology Stack
Node.js | React | TypeScript | React Native | AWS | Lambda | SQS | Cognito | RDS | S3 | Terraform | REST APIs | Multi-Tenant Architecture | CI/CD
📩 Share your CV / LinkedIn: a.parmar@vertexagility.com
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