Full Stack Engineer

Harrington Starr; United Kingdom; On-site; GBP 55,000 - 90,000; Full time

Benefits offered by this job

Private healthcare

Enhanced parental leave

Wellbeing support

Lifestyle benefits

Job summary

Harrington Starr is seeking a Software Developer to join its growing technology team, working on a modern, cloud-based fintech platform used by financial institutions to streamline data reconciliation, reporting, and operations.

You will contribute across the full software development lifecycle, gaining exposure to cloud technologies and scalable architectures within a collaborative engineering environment. Hybrid working arrangements and a comprehensive benefits package are offered.

Qualifications

• Commercial software development experience with C# and modern .NET.
• Experience building front-end applications using React.
• Knowledge of databases, APIs, and modern web app architecture.

Responsibilities

• Designing, developing, and maintaining high-quality software solutions across both front-end and back-end systems.
• Building scalable applications using C#, .NET, React, and Microsoft Azure.
• Collaborating closely with developers, product managers, and business stakeholders to deliver features.
• Developing and consuming APIs while working with modern database technologies.
• Participating in technical discussions, planning sessions, and solution design.
• Writing clean, maintainable code and participating in code reviews.
• Helping improve platform performance, scalability, and development practices.

Skills

Collaboration

Problem solving

Learning mindset

Tools

C# / .NET

React

Azure

APIs

Job description

Harrington Starr is working with an innovative fintech software company seeking a Software Developer to join its growing technology team.

This role offers the opportunity to build and enhance a modern SaaS platform used by financial institutions to automate complex data reconciliation, reporting, and operational processes. Working within a collaborative engineering environment, you'll contribute across the full software development lifecycle while gaining exposure to modern cloud technologies and scalable application architecture.

What you'll be doing:

• Designing, developing, and maintaining high-quality software solutions across both front-end and back-end systems
• Building scalable applications using C#, .NET, React, and Microsoft Azure
• Collaborating closely with developers, product managers, and business stakeholders to deliver impactful features
• Developing and consuming APIs while working with modern database technologies
• Contributing to technical discussions, planning sessions, and solution design
• Writing clean, maintainable code and participating in code reviews
• Helping improve platform performance, scalability, and development practices

What we're looking for:

• Commercial software development experience with C# and modern .NET
• Experience building front-end applications using React
• Knowledge of databases, APIs, and modern web application architecture
• Exposure to cloud platforms, ideally Microsoft Azure
• Strong problem-solving skills and attention to detail
• A collaborative approach and the ability to work effectively within a team environment
• A desire to learn, develop, and contribute to a growing technology function

What you'll gain:

• The opportunity to work on a modern, cloud-based fintech platform
• Exposure to a broad technology stack spanning back-end, front-end, and cloud engineering
• A supportive environment focused on continuous learning and career development
• Flexible and hybrid working arrangements
• A comprehensive benefits package including private healthcare, enhanced parental leave, wellbeing support, and additional lifestyle benefits