Elizabeth Osunsanwo
I'm a Full-stack Software Engineer
About
I am a Full-Stack Engineer and Infrastructure Strategist specializing in AI-native orchestration. Most growing businesses operate without a true system—relying instead on disconnected tools, spreadsheets, and reactive workflows. I solve for the lack of structure.
With an MSc in International Relations and a deep focus on UK and Global Digital Regulatory Frameworks, I build with a 'Security-by-Design' mindset. I don't just write code; I design the digital infrastructure that enables businesses to scale while remaining ethically governed and operationally stable.
Full-stack Software Engineer & Web Developer.
Specializing in the PERN stack, React, Node.js, and modern web technologies.
- Website: www.elizabethosunsanwo.co.uk
- City: London, UK
- Degree: Master of Science (MSc)
- Availability: Full-time / Part-time / Remote / Onsite
Focused on delivering high-availability infrastructure and collaborating with organizations to turn operational chaos into scalable growth through superior technical architecture.
Skills
Expertise in PERN stack, React, Node.js, HTML, CSS, Bootstrap, Java, jQuery, PHP, C#, Python, SQL, Express, and more.
Curriculum Vitae
Full-stack Software Engineer & Digital Architect
Expert in engineering end-to-end digital solutions that bridge the gap between technical feasibility and business operations. Proven track record in developing civic-tech and logistics infrastructure, focusing on transparency, data integrity, and scalability. I leverage the PERN stack to replace manual workarounds with high-performance, production-ready systems that solve high-stakes community and enterprise challenges.
Projects
Kagex (The Flagship)
A modular operational system designed to replace fragmented manual workflows with structured digital infrastructure for growing businesses.
- Key Result: Shipped the Courier Launch System, centralising dispatch workflows, rider assignment, and structured delivery tracking into a single operational system.
StreetLens (Civic Tech)
An automated housing advocacy platform engineered to drive civic accountability through data-driven reporting and administrative escalation logic.
- Key Result: Developed a secure system that flags rent and maintenance abuse by crossing user-reported data against local authority thresholds.
Tresse (E-Commerce)
A full-stack retail infrastructure focused on backend stability, secure transaction flows, and high-integrity inventory management.
- Key Result: Built a high-performance PERN stack system that moves beyond standard storefronts to handle the full lifecycle of complex retail operations.
EcoScan+ (Sustainability)
A mobile-native sustainability framework that gamifies urban civic engagement through interactive mapping and real-time environmental reporting.
- Key Result: Increased user participation in local recycling initiatives by integrating mobile hardware (camera/GPS) with a structured rewards logic.
Company Directory (Utility)
A streamlined personnel management system designed for enterprise-level data organization and relational visibility.
- Key Result: Engineered a responsive, database-driven tool that manages complex organizational hierarchies with a focus on data consistency and rapid retrieval.
Professional Experience
Founder & Lead Engineer | Kagex
London, UK | 2024 – Present
Established Kagex as an operational infrastructure company to eliminate 'workaround' cultures in growing businesses through production-ready digital engines.
- The Impact: Architected the Courier Launch System, a modular PERN-stack framework that centralizes shipment management, rider dispatch, and real-time tracking.
- The Future: Currently scaling the core infrastructure to solve recruitment and quality-assurance bottlenecks within the UK service and cleaning sectors.
Full-stack Software Developer (Project-Led)
London & Nigeria | Late 2023 – Present
Following an MSc from the University of Bristol, I executed a strategic transition into full-stack engineering, leading the end-to-end development of multiple civic-tech and retail platforms.
- The Impact: Successfully shipped StreetLens and EcoScan+, applying 'Security-by-Design' principles to bridge the gap between public sector needs and technical feasibility.
- The Standard: Leveraged the PERN stack to build high-availability systems, moving beyond simple features to create integrated business and community solutions.
Digital Content & Engagement | Reinier Global
Remote | 2023 – 2024
Managed digital asset design and engagement strategies, focusing on visual hierarchy and audience-centric communication.
- The Impact: Built the foundational UI/UX skills necessary to ensure complex backend systems remain intuitive and accessible for end-users.
Professional Background (2017 – 2023)
Nigeria & UK | 2017 – 2023
Developed a rigorous foundation in operational discipline, problem-solving, and client-facing digital communication within high-pressure service environments across the UK and Nigeria.
- The Impact: Honed the adaptability and attention to detail required to manage the complex governance and organizational requirements of modern software systems.
Education
- MSc International Relations | University of Bristol, UK (2023)
- B.A. German (Second Class Upper) | Obafemi Awolowo University, Nigeria (2018)
Certifications
- Full-Stack Web Development | IT Career Switch & Codecademy Professional Track
- Goethe Institut B1 Certificate | German Language Proficiency (2015)
- BCS Foundation Certificate in AI
Focus on Ethical Information Policy & UK Regulatory Frameworks (In Progress) - Ethical Prompt Engineering with DeepSeek-R1
Codecademy
Languages
- English (fluent), Yoruba (fluent), and German (intermediate).
Portfolio
Showcase of full-stack web applications demonstrating expertise in React, Node.js, Express, PostgreSQL, and API integrations. Each project highlights practical problem-solving and modern development practices.
Kagex Flagship
Operational infrastructure company replacing fragmented workarounds with production-ready digital engines.
Company Directory
A web-based company directory for managing personnel, departments, and office locations.
EcoScan+
Mobile app for smart city sustainability and civic engagement. Built with Expo & React Native. Features: reporting, rewards, mapping, camera, theming, and more.
Services
Professional web development services leveraging modern technologies and best practices to deliver high-quality, scalable solutions.
Frontend Development
Building responsive, interactive user interfaces with React, HTML5, CSS3, and JavaScript. Focus on performance, accessibility, and modern design principles.
Backend Development
Developing robust server-side applications with Node.js and Express. RESTful API design, authentication, and server logic implementation.
Full-Stack Development
End-to-end web application development using the PERN stack (PostgreSQL, Express, React, Node.js). Complete solutions from database to user interface.
Database Management
Database design, optimization, and management with PostgreSQL and SQL. Implementing efficient data structures and query optimization.
API Integration
Third-party API integration and custom RESTful API development. Connecting applications with external services and creating robust endpoints.
Responsive Web Design
Creating mobile-first, responsive websites that work seamlessly across all devices. Ensuring optimal user experience on desktop, tablet, and mobile.
Contact
Interested in working together? Send me a message using the form below and I'll get back to you as soon as possible.