Full Stack Web Developer with 8 years of commercial experience auditing, optimising and modernising web applications. I specialise in improving frontend performance (including Core Web Vitals and accessibility), modernising legacy platforms, and delivering scalable solutions across legal, insurance, recruitment and public sector environments.

Oliver Sheldon

Full Stack Web Developer with 8 years of commercial experience auditing, optimising and modernising web applications. I specialise in improving frontend performance (including Core Web Vitals and accessibility), modernising legacy platforms, and delivering scalable solutions across legal, insurance, recruitment and public sector environments.

Available to hire

Full Stack Web Developer with 8 years of commercial experience auditing, optimising and modernising web applications. I specialise in improving frontend performance (including Core Web Vitals and accessibility), modernising legacy platforms, and delivering scalable solutions across legal, insurance, recruitment and public sector environments.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
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Work Experience

Criminal Law Vertical Developer at LEAP Legal Software
October 1, 2025 - March 1, 2026
Designed and built a cross-platform offline application for solicitors working at police stations. Implemented a shared codebase across Android, iOS, Windows and macOS using React Native with a .NET API layer. Focused on secure data handling and encryption to support sensitive legal information, prioritising data protection and reliability. Worked across the full development lifecycle, from technical design and implementation through to integration with existing backend systems and infrastructure. Delivered features supporting offline-first usage for legal workflows while maintaining security requirements.
Web Developer at ATTB Group
January 1, 2023 - June 1, 2025
Delivered multiple greenfield web applications using .NET, Blazor, Razor and Next.js, hosted within AWS. Owned work across the full software lifecycle: gathering requirements, defining solutions, development, deployment and ongoing support. Built a job indexing platform integrating Google and Bing APIs to process millions of job postings. Implemented scheduled processing with Hangfire to manage API quotas and resource usage, and generated automated reports. Introduced Next.js within a new application and collaborated on authentication, user matching, and integration with an existing monorepo and CI/CD pipeline. Modernised legacy applications by migrating features into the monorepo, upgrading from .NET Framework to .NET Core, and refactoring for maintainability. Managed database migrations involving hundreds of users while ensuring continuity of service, balancing feature delivery with maintenance and stakeholder prioritisation.
Digital Developer at Ageas
September 1, 2019 - January 1, 2022
Developed and maintained a range of web applications across multiple platforms using .NET, C#, APIs and various databases in an Agile environment. Contributed to transitioning from monolithic systems to a microservices architecture by refactoring into smaller independently maintainable services. Led a frontend optimisation initiative by auditing websites, documenting recommendations, and implementing improvements focused on performance, usability and Core Web Vitals. Produced a frontend strategy covering rendering performance, reusable styling patterns, accessibility and modern development practices. Worked with analysts, QA and stakeholders to define acceptance criteria, shape MVPs, and balance technical improvements with business priorities. Researched emerging technologies and improved development practices.
Junior Web Developer at Ageas
August 1, 2018 - August 1, 2019
Developed and maintained customer-facing websites, delivering new features and improvements across multiple applications. Focused on creating responsive, accessible interfaces and improving consistency and maintainability across frontend codebases. Applied modern frontend techniques with HTML5, CSS3, SCSS and JavaScript to enhance layouts, styling approaches and user experience. Collaborated within an Agile team to deliver enhancements and resolve issues efficiently, with a continued emphasis on accessibility and Core Web Vitals improvements.
Work Placement – Web Developer at Newcastle under Lyme Borough Council
August 1, 2016 - July 1, 2017
Developed and maintained responsive, accessible websites using a CMS platform alongside Communications and IT teams. Built an internal intranet solution integrating corporate software and Active Directory services. Worked within a team environment to support internal users and improve access to information through practical web development.

Education

BSc (Hons) Web Development (2:1) at Staffordshire University
September 15, 2014 - June 1, 2018
BTEC Level 3 Extended Diploma in IT (D* D* D*) at Newcastle under Lyme College
January 1, 2012 - January 1, 2014
GCSEs (13.5 grades A-C) at Wolstanton High School
September 3, 2007 - July 30, 2012

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Government, Professional Services