Full Stack Engineer
Posted 4 days ago by Square One Resources
£520 Per day
Inside
Undetermined
Sheffield, UK
Summary: The Full Stack Engineer role involves owning the technical design across various components including UI, back-end services, APIs, and AI workflows for a UK-based multinational bank. The position requires hands-on coding, architecture decision-making, and ensuring solutions meet critical non-functional requirements. Candidates should have strong experience in full stack development and leading technical delivery in agile environments. The role is contract-based with a competitive daily rate.
Key Responsibilities:
- Own the end-to-end technical design across UI, Back End services, APIs, and AI workflows
- Make architecture decisions aligned with enterprise standards and cloud strategy
- Lead from the front with hands-on coding, code reviews, and mentoring
- Ensure solutions meet non-functional requirements including security, scalability, resilience, and observability
Key Skills:
- Strong hands-on experience in full stack development with modern Front End and Back End frameworks and proficiency in Python, Node.js, or Java
- Proven experience leading technical delivery in agile environments
- Experience building REST APIs, workflow engines, and enterprise applications
- Working knowledge of LLM APIs, prompt engineering, and AI agent patterns
Salary (Rate): £520 per day
City: Sheffield
Country: UK
Working Arrangements: undetermined
IR35 Status: inside IR35
Seniority Level: undetermined
Industry: IT
Detailed Description From Employer:
Job Title: Full Stack Engineer
Location: Sheffield
Salary/Rate: £520 per day
Start Date: 30th May
Job Type: Contract
Company Introduction
UK-based multinational bank and one of the largest financial services organisations in the world. Headquartered in London, it operates across Europe, Asia, the Americas, and the Middle East, serving millions of personal, commercial, and institutional customers.
Job Responsibilities/Objectives 1.Own the end-to-end technical design across UI, Back End services, APIs, and AI workflows
2.Make architecture decisions aligned with enterprise standards and cloud strategy
3.Lead from the front with hands-on coding, code reviews, and mentoring
4.Ensure solutions meet non-functional requirements including security, scalability, resilience, and observability
Required Skills/Experience
1.Strong hands-on experience in full stack development with modern Front End and Back End frameworks and proficiency in Python, Node.js, or Java
2.Proven experience leading technical delivery in agile environments
3. Experience building REST APIs, workflow engines, and enterprise applications
4.Working knowledge of LLM APIs, prompt engineering, and AI agent patterns
Desirable Skills/Experience
1.Integration experience with ServiceNow, Jira, Zendesk or similar ITSM platforms
2.Experience with Microsoft Teams or Slack integrations
3.Background in internal employee tools or enterprise support platforms
4.Experience in financial services or regulated industries
If you are interested in this opportunity, please apply now with your updated CV in Microsoft Word/PDF format.
Disclaimer
Notwithstanding any guidelines given to level of experience sought, we will consider candidates from outside this range if they can demonstrate the necessary competencies.
Square One is acting as both an employment agency and an employment business, and is an equal opportunities recruitment business. Square One embraces diversity and will treat everyone equally. Please see our website for our full diversity statement.