# Tomisin Abiodun > Software Engineer, ex-Microsoft | UK Global Talent Location: London Area, United Kingdom, United Kingdom Profile: https://flows.cv/tomisin I specialize in delivering high-impact, product-driven solutions that bridge the gap between engineering and business needs. With over 7 years of experience across fintech and Microsoft's Mixed Reality division, I leverage my expertise in Django, .NET, React, and Azure Cloud to build scalable, robust systems that directly contribute to strategic goals. My focus is on transforming complex technical challenges into tangible business value. My career began with a clear purpose: creating solutions that matter. At a YCombinator-backed startup and a fintech unicorn, I was instrumental in developing highly impactful solutions that empowered users to easily find and invest in suitable financial instruments. This work significantly contributed to driving financial inclusivity across the country, making a real difference in people's lives. Currently, I lead the development of the Reporting and Analytics product on Checkout.com's bespoke dashboard. My role is to ensure that our architecture, implementation, and integration across Checkout’s diverse product ecosystem provide scalable, data-driven solutions. I collaborate closely with cross-functional teams to deliver actionable insights that directly drive business outcomes across all of Checkout’s products and services, optimizing performance and fostering growth. Beyond my core development responsibilities, I'm passionate about sharing knowledge and fostering growth within the tech community. As a technical writer and mentor, I actively contribute to building a strong network of developers and technologists. My goal is to empower others to leverage technology for positive change and continue to innovate. I hold a Bachelor of Engineering degree in Electrical, Electronics and Communications Engineering from Afe Babalola University. ## Work Experience ### Product Engineer @ Checkout.com Jan 2024 – Present | London Area, United Kingdom - Built and launched the company’s first AI-powered chatbot using LLMs, vector search, and analytics APIs, enabling merchants to query transaction data conversationally and materially reducing time to results & mental workload. - Led a major refactor of the core TypeScript charting library and defined company-wide data visualisation standards across micro-frontends, improving dashboard performance, consistency, and long-term maintainability. - Designed and delivered an analytics platform on a micro-frontend architecture with React and TypeScript, partnering closely with product and design to surface actionable insights across payment operations. ### Software Engineer II (L62) @ Microsoft Jan 2021 – Jan 2024 | EMEA - Led the transformation of Microsoft Mesh Cloud Scripting's distributed hosting system (Cloud Host) from a prototype to a fully operational MVP, making it possible for Fortune 100 enterprises to improve their virtual reality apps with complex business logic, .NET APIs, and shared states across participants. - Collaborated effectively with Software Architects, PMs and Technical Leads across geo-distributed teams to empower developers in crafting custom worlds for Microsoft's virtual reality platform. I also participated in architectural discussions to drive innovation and excellence. - Implemented telemetry for the Cloud Scripting host platform, granting our Fortune 100 customers valuable insights into their app performance and enabling them to deeply analyse and understand their systems. - Implemented the authentication mechanism for the Cloud Scripting's Host, ensuring secure access to the platform, safeguarding sensitive data and maintaining the system’s integrity. - Architected and meticulously implemented multi-version support in Cloud Scripting, ensuring the system remains reliable and available between patches, updates, and releases in virtual reality apps. - Designed and implemented rate limiting mechanisms for Cloud Scripting's Host, ensuring graceful handling of usage limits while maintaining optimal performance and horizontal scalability. - Engaged in technical interview loops for engineering roles, assessing candidates’ fit for the position through in-depth technical discussions and problem-solving scenarios. ### Lead Software Engineer @ Interswitch Group Jan 2021 – Jan 2021 | Lagos, Nigeria - Led the development of efficient and secure neo-banking frontend applications (mobile and PWAs web) using TypeScript, ReactJS, and React Native, catering to users in remote locations and fa cilitating seamless financial transactions. - Orchestrated a remarkable 251.1% increase in user engagement, elevated average engagement time by 6.1%, and generated a substantial 35.6% uptick in revenue for Quickteller Paypoint through strategic enhancements to the mobile application. - Pioneered the development of a cutting-edge financial inclusion web application, overseeing its initial phases and laying the groundwork for future expansion. - Directed the development and successful launch of the mobile application version, which garnered an exceptional rating of 4.4 stars on Google Play, establishing it as the highest-rated mobile application within the company's portfolio. - Demonstrated leadership by mentoring and training interns in mobile and web development utilizing ReactJS and React Native, fostering their professional growth and contributing to the talent pipeline of the organization. - Collaborated closely with cross-functional teams to align technical initiatives with business objectives, ensuring the delivery of high-quality solutions that meet user needs and drive measurable impact. - Proactively identified opportunities for innovation and optimization, driving continuous improvement in frontend development processes, technologies, and user experiences. - Acted as a subject matter expert in frontend development, providing guidance on best practices, emerging technologies, and industry trends to inform strategic decision-making and drive competitive advantage. ### Software Engineer @ Interswitch Group Jan 2019 – Jan 2021 | Lagos, Nigeria ### Software Engineer @ Cowrywise Jan 2019 – Jan 2019 - Implemented sophisticated administrative dashboards tailored for fund managers, providing intuitive insights into financial data and enhancing decision-making processes. - Developed robust and scalable REST APIs, leveraging best practices in API design and implementation to ensure reliability, security, and interoperability. - Demonstrated strong problem-solving skills and technical expertise in resolving complex challenges encountered during development, leading to efficient and effective solutions. - Collaborated closely with cross-functional teams to align technical initiatives with business objectives, fostering a culture of collaboration and knowledge-sharing. ### Mobile Application Developer @ Tunga Jan 2018 – Jan 2019 | Remote - Developed and shipped a high-traffic mobile app used by over 100,000 monthly users - Created a new feature for the mobile app that resulted in a 25% increase in daily active users - Implemented an optimized architecture for the mobile app that improved performance by 50% - Collaborated with cross-functional teams to develop and launch a new mobile app for iOS and Android - - Conducted code reviews and mentored junior mobile engineers to improve code quality and team productivity ### Back End Developer @ TechAdvance Jan 2018 – Jan 2019 | Lagos, Nigeria - Developed fintech microservices and APIs from scratch, laying the groundwork for essential digital banking functionalities. - Took on the responsibility of maintaining and providing support for legacy payment aggregation and collection systems, quickly learning the intricacies of these systems to ensure their smooth operation. - Designed and implemented user-friendly administrative dashboards for payment aggregation systems, showcasing a proactive approach to problem-solving and improving system accessibility. - Demonstrated adaptability and a rapid learning curve in grasping complex technical concepts and applying them effectively in a real-world setting. - Proactively sought opportunities to contribute beyond assigned tasks, taking initiative to offer solutions and suggestions for improving system efficiency and functionality. - Collaborated closely with team members to learn from experienced professionals and contribute to collective project goals, demonstrating strong teamwork and communication skills. - Actively participated in knowledge-sharing sessions and training opportunities, continuously expanding technical skills and staying updated on industry best practices. - Received positive feedback from peers and supervisors for dedication, enthusiasm, and willingness to go above and beyond in delivering quality work. ## Education ### Bachelor of Engineering - BE in Electrical, Electronics and Communications Engineering Afe Babalola University ## Contact & Social - LinkedIn: https://linkedin.com/in/tomisin-abiodun - Website: https://tomisin.dev --- Source: https://flows.cv/tomisin JSON Resume: https://flows.cv/tomisin/resume.json Last updated: 2026-04-05