Casprine Assempah

Senior Software Engineer
Amsterdam, NL.

About

Highly accomplished Senior Software Engineer with a proven track record of leading complex projects and driving significant improvements in product velocity, user experience, and engineering efficiency. Expert in full-stack development, cross-platform design systems, and FinTech solutions, leveraging TypeScript, React, and Node.js to deliver scalable and high-impact applications. Adept at leading teams, optimizing deployment workflows, and integrating advanced APIs to achieve measurable business outcomes.

Work

Bird
|

Software Engineer

Amsterdam, Netherlands

Summary

Leading key integrations and platform development to enhance customer engagement and operational efficiency for a SaaS ecosystem.

Highlights

Spearheaded the integration of Google RCS into MarketSuite and BirdCRM, significantly enhancing customer engagement and streamlining communication workflows for businesses.

Directed the development of the Meta Ads project, empowering companies to seamlessly manage their advertising networks directly within Bird's platform.

Contributed to the strategic development of a new HR suite, a core component of BIRD in a BOX, designed to centralize company operations within Bird's ecosystem.

Housing Anywhere
|

Software Engineer

Rotterdam, Netherlands

Summary

Drove significant improvements in user experience, product velocity, and developer productivity through advanced search features and robust design system implementation.

Highlights

Led critical search feature development on the marketplace platform, enhancing user experience and fine-grain controls, which boosted conversion rate by 40%.

Guided the web platform team in building the first multi-tenant design system using React, TypeScript, and MUI, increasing product velocity by 35% across multiple subsidiaries.

Engineered a deployment workflow solution that slashed deployment time from over 35 minutes to under 5 minutes, recovering 130+ hours of developer productivity annually.

Standardized communication between engineering and design teams by facilitating Figma design token sharing, enhancing collaboration and consistency.

Partnered with designers and UX researchers to develop a scalable Figma design system and syncing engine, integrating with the React component library via GitHub Actions.

Streamlined the visual change management process from Figma to Storybook, ensuring systematic tracking and approval.

ChipperCash
|

Lead Design Engineer

San Francisco, USA

Summary

Spearheaded the design system team to develop a cross-platform component library, optimizing engineering efficiency and supporting a major rebrand for 4 million users.

Highlights

Established and led the design system team, developing a cross-platform React/Native component library that boosted engineering efficiency by 20% across ChipperCash mobile applications.

Successfully migrated seven key mobile app flows to the new design system, resulting in 26 weeks of engineering time savings.

Directed the comprehensive rebrand across both mobile applications, ensuring a seamless experience for 4 million users.

Brank
|

Co-Founder and Software Engineer

Accra, Ghana

Summary

Co-founded a FinTech venture, developing core financial data infrastructure and building the initial MVP for client-facing solutions.

Highlights

Pioneered the development of financial data access infrastructure, creating an African-focused solution akin to Plaid.

Architected and developed the Minimum Viable Product (MVP), including a client widget library, website, and client dashboard using Sass, TypeScript, and React.

Managed end-to-end product development cycle, from conceptualization to deployment, ensuring alignment with market needs and technical feasibility.

Leveraged agile methodologies to rapidly iterate on product features and respond to early user feedback, driving efficient development cycles.

expressPay Ghana Limited
|

Software Engineer

Accra, Ghana

Summary

Led a team of engineers in developing Ghana's national online payment and digital services portal, significantly enhancing team productivity through design system implementation.

Highlights

Directed a 4-engineer team in developing ghana.gov.gh, the national portal for online payments and digital services utilized by millions of Ghanaians for tax and government service payments.

Designed and implemented a comprehensive design system with React, Aphrodite CSS, and TypeScript, boosting team productivity and accelerating time-to-ship.

Collaborated closely with government stakeholders to align technical solutions with national digital service objectives.

Ensured the scalability and security of payment infrastructure to handle transactions for millions of users.

Intelligent Crazy People
|

Software Engineer

London, UK

Summary

Developed an initial MVP web application and real-time feed, successfully onboarding 2,500 users and increasing daily active engagement.

Highlights

Developed the initial MVP web application using ReactJS and MobX, successfully onboarding 2,500 users across three continents.

Contributed to the development of a real-time user feed, significantly improving usage and interactivity, which increased daily active users.

Implemented robust backend services to support real-time data processing and user interactions.

Analyzed user engagement data to inform feature development, driving continuous improvements in platform stickiness.

OMG Digital, Inc.
|

Software Engineer

Accra, Ghana

Summary

Maintained a news website and publishing platform while developing and testing the initial React Native MVP.

Highlights

Managed and maintained the news website and publishing platform, ensuring continuous operation and content delivery.

Developed the initial React Native MVP and conducted user testing with 500 TestFlight users, gathering critical feedback for product refinement.

Implemented front-end features and ensured responsive design across various devices to optimize user experience.

Collaborated with content and product teams to integrate new features and improve platform functionality.

Skills

DevOps & Workflow Automation

GitHub Actions, Deployment Optimization.

Programming Languages

TypeScript, JavaScript, SwiftUI.

Frontend Development

React, Redux, MobX, MUI, Aphrodite CSS.

Mobile Development

React Native, SwiftUI.

Backend Development

Node.js.

Design Systems

Figma, Storybook, Component Libraries, Multi-tenant Systems.

Project & Team Leadership

Team Leadership, Cross-functional Collaboration, Agile Methodologies, Product Development.

FinTech & Payments

Financial Data Infrastructure, Online Payments, Mobile Payments.

API Integration

Google RCS, Meta Ads API.

UI/UX Design & Research

User Experience (UX), Figma Design Tokens, UX Research Collaboration.