Build and architect scalable full-stack applications using React, Node.js, TypeScript, AWS, Terraform, and serverless technologies. Own frontend, backend, infrastructure, CI/CD, testing, and deployment across the application lifecycle. Use AI-assisted development tools, design event-driven architectures, and mentor junior engineers. Act as a consultative technical partner by translating business needs into secure solutions and presenting architectural guidance to client stakeholders.
We are seeking highly skilled multiple Senior Full Stack Developers to join our team in a high-impact, client-facing capacity. You will be instrumental in architecting and deploying robust, scalable applications for a diverse range of clients across the UK and EMEA.
Initially will be embedded directly within the innovation team of an exciting enterprise client, helping them pioneer ground-breaking products and shape their future tech stack. This isn't just a coding role; you are a consultative partner—capable of translating complex business requirements into secure, serverless architectures and presenting best-practice improvements directly to customer stakeholders.
The role is on a permanent basis, however we can consider applicants who are available on a 6 month contract basis. The role is remote but the successful person must be based in the United Kingdom.
Initially will be embedded directly within the innovation team of an exciting enterprise client, helping them pioneer ground-breaking products and shape their future tech stack. This isn't just a coding role; you are a consultative partner—capable of translating complex business requirements into secure, serverless architectures and presenting best-practice improvements directly to customer stakeholders.
The role is on a permanent basis, however we can consider applicants who are available on a 6 month contract basis. The role is remote but the successful person must be based in the United Kingdom.
Key Responsibilities
- Cloud-Native Development: Architect and build high-performance web applications using React, Node.js, and TypeScript. You will own the full lifecycle, from frontend UI components to backend business logic.
- Infrastructure as Code (IaC): Lead the implementation of cloud environments
using Terraform. You will treat infrastructure as a first-class citizen, ensuring all client environments are reproducible, version-controlled, and secure. - Serverless Architecture: Design and deploy event-driven solutions leveraging AWS Lambda and other AWS services. You are expected to be adept at managing serverless state, permissions (IAM), and performance tuning.
- AI-Accelerated Workflow: Proactively utilise AI-assisted development tools (e.g., GitHub Copilot, Cursor, Claude) to accelerate delivery, automate testing, and refactor legacy code, while maintaining strict manual oversight for security and quality.
- Automation & CI/CD: Build and manage automated pipelines that bridge the gap between application code and infrastructure deployment, ensuring a seamless "push-to-deploy" experience.
- Consultative Leadership: Act as a subject matter expert in client "pods" mentoring junior engineers and confidently presenting architectural roadmaps to customer stakeholders.
Skills, Knowledge and Expertise
- Proven commercial experience within a Full Stack Development role.
- Highly experienced in event driven architectures.
- Strong In-depth knowledge and hands-on experience with React Native, React, Node.js, Typescript and Angular.
- Experience of engineering for Mobile to create modular, reusable components.
- Strong experience of AWS Infrastructure as Code (IaC) using tooling such as Terraform as well as AWS Serverless e.g Lambda.
- Strong experience of automation, CI/CD principles and experience with tools like Jenkins, Github Actions, GitLab CI, or AWS CodePipeline.
- Experience of RestAPI’s as well as wider 3rd Party API’s.
- Experience using GraphQL.
- Strong working knowledge of containerisation technologies (Docker) and orchestration platforms (Kubernetes, ECS).
- Automated Test experience.
- Excellent communication and interpersonal skills, with a proven ability to engage with technical and non-technical stakeholders.
- A consultative mindset with strong problem-solving and analytical skills and ability to communicate technical concepts to non-technical stakeholders.
- Comfortable working in agile, client-facing environments with autonomy and ownership.
- Able to commute when required for client or team sessions (occasional).
Benefits
- Remote-first working with flexibility around client needs.
- Private Medical Insurance.
- Opportunity to work on meaningful projects across multiple industries.
- A collaborative culture focused on learning, excellence and continuous improvement.
- Competitive salary with clear progression pathways.
About
We are passionate about helping businesses navigate the rapidly changing and complex world of emerging technologies. We create well-structured, secure, scalable solutions at speed to provide the foundation for groundbreaking change.
Nasstar Belfast, Northern Ireland Office
Belfast, United Kingdom
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What you need to know about the Belfast Tech Scene
If asked to name the birthplace of the RMS Titanic, you might not say Belfast. Similarly, if asked to name Europe's leading destination for foreign direct investment in new software development, Belfast might not come to mind. Yet, both are true. The city has emerged as a tech powerhouse, recently ranked among the best in the U.K. for tech careers — especially for software developers. It also leads the U.K. with the highest percentage of software development jobs advertised.
