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I'm a software engineer with over 5 years of experience, specializing in Java, JavaScript, and TypeScript for SaaS applications. I enjoy building robust backend services and intuitive frontend interfaces, always aiming to improve system performance and user experience. I'm currently based in London and open to Switzerland-based opportunities. I thrive in cross-functional teams with UX designers, QA engineers, and product managers, delivering clean, well-tested code and scalable solutions that align with business goals.…I'm a software engineer with over 5 years of experience, specializing in Java, JavaScript, and TypeScript for SaaS applications. I enjoy building robust backend services and intuitive frontend interfaces, always aiming to improve system performance and user experience. I'm currently based in London and open to Switzerland-based opportunities. I thrive in cross-functional teams with UX designers, QA engineers, and product managers, delivering clean, well-tested code and scalable solutions that align with business goals.

Mathews Okeyo

Front-End Developer, Back-End Developer, Full Stack Developer, +4

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I'm a software engineer with over 5 years of experience, specializing in Java, JavaScript, and TypeScript for SaaS applications. I enjoy building robust backend services and intuitive frontend interfaces, always aiming to improve system performance and user experience. I'm currently based in London and open to Switzerland-based opportunities. I thrive in cross-functional teams with UX designers, QA engineers, and product managers, delivering clean, well-tested code and scalable solutions that align with business goals.…I'm a software engineer with over 5 years of experience, specializing in Java, JavaScript, and TypeScript for SaaS applications. I enjoy building robust backend services and intuitive frontend interfaces, always aiming to improve system performance and user experience. I'm currently based in London and open to Switzerland-based opportunities. I thrive in cross-functional teams with UX designers, QA engineers, and product managers, delivering clean, well-tested code and scalable solutions that align with business goals.

Available to hire

I’m a software engineer with over 5 years of experience, specializing in Java, JavaScript, and TypeScript for SaaS applications. I enjoy building robust backend services and intuitive frontend interfaces, always aiming to improve system performance and user experience.

I’m currently based in London and open to Switzerland-based opportunities. I thrive in cross-functional teams with UX designers, QA engineers, and product managers, delivering clean, well-tested code and scalable solutions that align with business goals.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

English

Fluent

French

Advanced

German

Intermediate

Work Experience

Software Engineer at Upland Software

August 1, 2022 - Present

Front-end development with React and TypeScript to build new customer-facing web products; back-end development with Java Spring Boot to create REST API endpoints and optimize existing APIs for the frontend; wrote clean, tested code with unit tests targeting ≥90% coverage; SonarQube used in Jenkins pipelines for code quality; collaborated with UX designers, QA, and PMs to deliver desirable software; implemented API gateway g-zipping to fetch large data sets on AWS Lambda; conducted code reviews to promote consistency; improved PostgreSQL performance through query optimization and indexing; used Docker to build, test, and deploy microservices on AWS.

Software Engineer at Lucy Electric

November 1, 2019 - August 1, 2022

Improved functionality of React Native mobile app to increase user engagement, refining UI and processing speed with Redux and reduced hardware calls; developed a C# Windows app with incremental updates and a software release report to communicate updates to customers; developed u-blox modem control with AT commands for embedded systems; participated in full software development process including planning, analysis, design, development, testing, deployment, and maintenance for demo projects with Arduino and third-party devices; implemented Apache Kafka on MuleSoft to analyze and process streaming data in real-time.