giuseppe de marino
giuseppe de marino

Senior Software Engineer

Open to offers · Member since 17 Oct 2026
Location
London, United Kingdom
Desired salary
Confidential
Work preference
Remote Only
Experience level
Senior

About

Professional summary

I am a Senior Front-End and Full-Stack Software Engineer with more than 7 years of experience building high-performance, accessible, and scalable enterprise web applications for major brands including BlackRock, BT, BBC, Sainsbury's, and Thomson Reuters.

I specialize in React, Next.js, TypeScript, JavaScript, Node.js, and modern front-end architecture. My experience includes developing micro-frontends, server-rendered applications, component libraries, semantic search solutions, and data-rich KPI dashboards.

I currently deliver senior-level, stakeholder-facing platform work at BlackRock, following the acquisition of Preqin. I contribute to enterprise products involving complex transaction visualizations, Snowflake-backed data integration, and scalable front-end systems.

I have led front-end initiatives, supported Agile delivery through standups and sprint demonstrations, and presented product capabilities directly to business stakeholders. I also have experience mentoring engineers and participating in technical hiring processes.

I care deeply about accessibility, code quality, testing, and maintainable architecture. I have consistently applied WCAG AA standards, test-driven development practices, and modern CI/CD workflows across production applications.

I am seeking a Senior Software Engineer role with a hybrid arrangement of up to two office days per week or a fully remote opportunity.

Notice period: 1/2 months

Skills

17 capabilities

Tech stack & tools

Working toolkit

Data Stores

Design

Development

Languages & Frameworks

Experience

Career history

Associate, Application Engineer BlackRock

I serve as a key contributor in a three-developer team delivering high-profile enterprise projects using React, TypeScript, SQL, Python, React Testing Library, and SASS.

I spearheaded front-end development for the Secondaries Market platform, building micro-frontends for complex private-equity secondary transaction visualization. I also architect KPI dashboards and visualization modules with Snowflake-backed data integration.

I support Agile delivery by leading daily standups, organizing sprint demos, and presenting product capabilities directly to enterprise stakeholders.

Software Engineer Preqin

I built an AI-powered semantic search engine using OpenSearch vector embeddings, React, and TypeScript, improving search relevance by 40% and accelerating insight discovery.

I engineered a micro-frontend architecture with dynamic URL state serialization to support deep-linking and state sharing across multi-region teams. I also implemented TeamCity CI/CD pipelines, reducing deployment overhead by 30%.

Senior Front-End Developer BT Group

I led a three-engineer front-end initiative to design and publish accessible UI component libraries, accelerating feature delivery across five internal product teams.

I modernized the EE Contact Us system from legacy AEM to Next.js with Incremental Static Regeneration, reducing dynamic page load times by 35%. I also developed a Node.js and Express Stripe payment service with webhook integrations.

I participated in technical hiring and mentored junior and mid-level engineers on engineering practices, code quality, and career development.

Senior Front-End / Web Developer BBC

I re-architected topgear.com using Next.js, server-side rendering, React, and TypeScript, improving initial page render speeds by 40% and strengthening SEO performance.

I enforced BBC and WCAG AA accessibility standards across the component library, achieving full compliance across core web journeys.

Software Engineer Sainsbury's Supermarkets

I worked as a Front-End Engineer on internal products used by Sainsbury's colleagues and suppliers. I built complex applications with JavaScript, React, Redux, Node.js, and Jest.

I followed accessibility and code-quality standards, deployed applications to AWS, and used Git-based pull requests for collaboration. I worked in an Agile Scrum environment with exposure to Docker and PostgreSQL.

Software Engineer (Contract) Thomson Reuters

I implemented and maintained a fact-checking, risk, and referencing web application using OOP/MVC JavaScript with Dojo Toolkit, Node.js, and Less.

I applied test-driven development where appropriate, maintained accessibility and code-quality standards, and deployed applications to AWS using Git-based workflows in an Agile Scrum environment.

Web Developer BBC

I developed front-end features for the BBC iPlayer Radio team on bbc.co.uk/radio pages, working closely with UX teams to deliver mobile-first responsive experiences with progressive enhancement.

I built scalable web applications using JavaScript, HTML, CSS, and SASS while following accessibility and coding standards. I deployed to AWS and used Git and SVN for version control.

Education

Learning history

University of the Arts London

B.A. (Hons), Digital Media Production

Digital Media Production degree, awarded with a 2:1 classification.

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