Senior Fullstack Engineer
hackajob
- London, England, United Kingdom
- London, England, United Kingdom
About
Senior Fullstack Engineer
role at
hackajob
hackajob is collaborating with
Sainsbury’s DTD
to connect them with exceptional tech professionals for this role.
About The Role As a Full Stack Senior Engineer, you will design and develop scalable, user‑friendly web applications, building Node.js services and React frontends. You will work across the stack to ensure high performance, collaborating on both front‑end and back‑end architecture, and leading the design and support of services and internal frameworks that enhance Sainsbury’s capabilities. Throughout the product lifecycle you will demonstrate engineering expertise in security, cloud, infrastructure as code, and CI/CD, while advocating agile delivery methodologies and supporting your teammates.
Collaboratively contribute to the design and support of services and internal frameworks.
Actively participate in research, scoping, and planning activities for new domain and platform capabilities.
Drive the technical roadmap of the product by deeply understanding technology and broader roadmaps.
Guide, support, and enable performance within the squad by providing technical knowledge and ideas.
Remove technical blockers for fellow developers.
Act as a role model representing all standards and principles for developers.
Analyse existing operations to identify risks and redundancies and conduct comprehensive assessments to develop solutions.
Mentor fellow engineers and promote the engineering community of practice through events.
Essential Criteria Your experience and expertise include:
Commercial experience with the Node.js ecosystem, building REST APIs, TypeScript, Mono repositories, GitHub Actions, GraphQL or tRPC APIs, and React with hooks.
Experience with AWS Lambda + Serverless, or similar technologies such as Azure Functions or Google Cloud Functions.
Experience with NoSQL databases, preferably Mongo Atlas.
Terraform experience is a plus.
Strong knowledge of software design, implementation, security, cloud, infrastructure as code, and CI/CD.
Self‑driven with a constant strive for improvement within your team, division, and peers.
Advocate for agile/lean delivery methodologies.
Passion for delivering solutions to customers, owning the SDLC, and following DevOps principles.
Passion for enhancing knowledge and curiosity in emerging tech.
What I Need To Show
A positive approach to change.
A solution‑focused mindset with creativity and adaptability.
Good communication skills and the ability to navigate complex corporate governance environments.
Attention to detail.
Benefits
Colleague discount across our multi‑brands – Sainsbury’s, Argos, Tu and Habitat.
Holiday allowance.
Bonus scheme.
Pension plan.
Private Health Insurance.
Additional Details
Seniority level:
Mid‑Senior level
Employment type:
Full‑time
Job function:
Engineering and Information Technology
Industries:
Software Development
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Languages
- English
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