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I am a Senior Software Developer with over 9 years of experience delivering enterprise applications across healthcare, public sector, telecommunications, and financial industries. I specialize in .NET Core, Cloud and microservices architecture, offering strong expertise in back-end development, API integrations, and cloud deployments. I have a proven track record of leading cross-functional teams, mentoring developers, and delivering scalable, high-performance software solutions for clients including the UK Department for Transport, NHS, and Bank of Ireland.…I am a Senior Software Developer with over 9 years of experience delivering enterprise applications across healthcare, public sector, telecommunications, and financial industries. I specialize in .NET Core, Cloud and microservices architecture, offering strong expertise in back-end development, API integrations, and cloud deployments. I have a proven track record of leading cross-functional teams, mentoring developers, and delivering scalable, high-performance software solutions for clients including the UK Department for Transport, NHS, and Bank of Ireland.

Gabriel Marius Popescu

Web Developer, Back-End Developer, Programmer, +6

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I am a Senior Software Developer with over 9 years of experience delivering enterprise applications across healthcare, public sector, telecommunications, and financial industries. I specialize in .NET Core, Cloud and microservices architecture, offering strong expertise in back-end development, API integrations, and cloud deployments. I have a proven track record of leading cross-functional teams, mentoring developers, and delivering scalable, high-performance software solutions for clients including the UK Department for Transport, NHS, and Bank of Ireland.…I am a Senior Software Developer with over 9 years of experience delivering enterprise applications across healthcare, public sector, telecommunications, and financial industries. I specialize in .NET Core, Cloud and microservices architecture, offering strong expertise in back-end development, API integrations, and cloud deployments. I have a proven track record of leading cross-functional teams, mentoring developers, and delivering scalable, high-performance software solutions for clients including the UK Department for Transport, NHS, and Bank of Ireland.

Available to hire

I am a Senior Software Developer with over 9 years of experience delivering enterprise applications across healthcare, public sector, telecommunications, and financial industries. I specialize in .NET Core, Cloud and microservices architecture, offering strong expertise in back-end development, API integrations, and cloud deployments.

I have a proven track record of leading cross-functional teams, mentoring developers, and delivering scalable, high-performance software solutions for clients including the UK Department for Transport, NHS, and Bank of Ireland.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Fluent

Work Experience

Consultant – Public Beta D-TRO at PA Consulting

August 1, 2025 - August 1, 2025

Designed and enhanced data models supporting nationwide Digital Traffic Regulation Orders (D-TRO), ensuring compliance and scalability. Implemented API validation and automated testing (TDD), reducing JSON payload errors by 25%. Presented product features to traffic authorities, improving adoption and user satisfaction across England. Mentored new developers, expediting onboarding and increasing team productivity. Deployed APIs and UIs using Docker and Google Cloud Platform for secure, reliable rollouts.

Consultant – Private Beta D-TRO at PA Consulting

October 1, 2024 - October 1, 2024

Led data model enhancements, enabling Traffic Regulation Authorities to implement regulations more efficiently. Ensured robust data persistence using Entity Framework Core with PostgreSQL. Managed APIs with Google Apigee and developed scalable services in .NET Core. Oversaw deployment of APIs and UIs across environments leveraging Docker and GCP.

Web Developer at Nottingham University Hospital

March 1, 2024 - March 1, 2024

Developed modules such as Theatre Schedule, Cancer Tracker, and Patient Tracker to enhance clinical activity tracking and prediction. Improved user experience with patient validation, timeline comments, and task assignments. Optimized data flow and reduced redundancy leveraging generics for multi-source information. Deployed applications on Azure using PostgreSQL and Docker for scalable, reliable performance.

Senior Software Developer at Simply IOA

September 1, 2022 - September 1, 2022

Built a home and auto insurance portal, enabling agents to generate quotes in under three minutes. Developed integration APIs between Insured Mine CRM and Epic Applied Systems. Improved UI workflows, significantly increasing quote generation efficiency.

Software Developer at Sentel International Ltd.

September 1, 2021 - September 1, 2021

Developed billing audit tools that recovered overcharges by matching telecom bills to contract rates. Built portals for UK and French clients, enabling telephony data tracking and reporting (PBX, CDRs). Automated data fetching and parsing from Mitel 3300 and Avaya IP Office servers. Prototyped a customizable web app utilizing .NET Core MVC, Telerik, and Kendo controllers.

Software Developer (Bank of Ireland Project) at Etain Software Ltd.

September 1, 2018 - September 1, 2018

Developed MVC applications for GDPR-compliant marketing consent management. Built solutions to fetch and process financial transactions for loans, mortgages, and cards. Automated data records and daily uploads for banking operations.

Software Developer at Legality Software

August 1, 2019 - August 1, 2019

Developed tools to generate HTML documentation from C# XML comments. Created WinForms applications for reporting, real-time activity monitoring, and audio recording with subtitles. Built data management solutions using Telerik components.

Junior Developer at Microbilt

September 1, 2016 - March 31, 2018

Built APIs supporting financial third-party applications (Super-Phone, MLA, People-Search). Enhanced and maintained HTML/XSLT/XML financial reports for global institutions. Supported US compliance efforts by compiling asset summaries post-9/11.