Full Stack Software Engineer Job at Fynity (London)

Full Stack Software Engineer

Fynity

Location:
United Kingdom , London

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

40000.00 - 55000.00 GBP / Year

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Job Description:

As a Full Stack Software Engineer, you will help develop and scale the company’s core financial service platform and internal tools. You will work closely with product, operations, and wider business teams to translate practical requirements into reliable software. This role suits someone who can both build and communicate effectively. You should be comfortable writing solid code, explaining decisions clearly, asking the right questions, and collaborating with others.

Job Responsibility:

Collaborate with product and internal stakeholders to design, build, and deliver new features across the platform and internal systems
Develop and maintain frontend and backend components using modern frameworks
Translate product requirements into clear technical decisions and implementation plans
Optimise performance, reliability, usability, and scalability
Write clean, maintainable, and testable code aligned with engineering standards
Troubleshoot and resolve technical issues with clear communication
Contribute to architectural and process decisions to ensure security and adaptability
Use AI-assisted tools appropriately for research, prototyping, debugging, and development tasks
Stay up to date with relevant technologies and contribute to improving workflows and product quality

Requirements:

Minimum 2 years’ experience in full stack web development
Strong understanding of modern web application development across frontend and backend
Experience shipping production code and improving existing systems
Degree in Computer Science, Engineering, or a related field is beneficial but not essential
Clear written and verbal communication
Ability to collaborate with technical and non-technical stakeholders
Strong judgement and problem-solving approach
Comfortable asking questions to clarify requirements
Ability to use AI tools effectively, including prompt writing and output validation
Collaborative, reliable, and easy to work with

Nice to have:

Experience building fintech platforms
Experience developing SaaS or user-focused products
Familiarity with DevOps practices, CI/CD pipelines, and containerisation
Experience using AI coding tools such as GitHub Copilot, Cursor, Claude, or similar

What we offer:

Opportunity to work on a platform supporting innovative businesses
Team culture focused on clarity, ownership, and continuous improvement
Exposure to modern tools and AI-assisted development practices
Professional development opportunities

Additional Information:

Job Posted:
April 01, 2026

Employment Type:

Fulltime

Work Type:

On-site work

Fynity - All Job Offers

Job Link Share:

Full Stack Software Engineer

Fynity

Location:
United Kingdom , London

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Nice to have:

Additional Information:

Job Posted:
April 01, 2026

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