Collaborated with amazing organizations worldwide.
Over the last 10 years, from startups to large organizations, across a wide range of industries and domains.
I build high-performance web and mobile applications, focusing on scalability and user experience.
I'm also passionate about open-source work, contributing to projects that advance modern development.
A little bit about myself
Jean-Vincent is an Accomplished Senior Software Engineer with 10 years of hands-on experience spanning both frontend and backend development. Proficient in JavaScript, HTML/CSS, PHP, C#, with advanced expertise in ReactJS, NodeJS, Typescript, Angular, Laravel, .NET, and Dart/Flutter for mobile development. A dedicated problem-solver and continuous learner, committed to driving innovation and delivering exceptional results in every project.
I hold a Bachelor's in Business Information Technology, which equipped me with both technical expertise and strong interpersonal skills. These skills have enabled me to collaborate effectively with cross-functional teams and stakeholders to deliver high-quality software solutions.
In my free time, I love creating fun and useful projects, often open sourcing them. I also enjoy reading, gaming, and producing music beats.
My Work Experience
A snapshot of my professional journey, showcasing the roles, projects, and achievements that define my career as a software engineer.
Senior Software Engineer
BESTSELLER A/S - Nov 2023 - Feb 2026
Senior Software Engineer
BESTSELLER A/S - Nov 2023 - Feb 2026
BESTSELLER is an international fashion multi brand company consisting of 20+ individual brands. BESTSELLER sells clothes and accessories for all ages, genders and occasions.
- Developed and maintained Digital Media & Marketing web app, slashing pages load time by 30% with React.js, prioritizing UX and accessibility.
- Implemented daily usage and performance metrics using OpenTelemetry, integrated with Datadog for monitoring, yielding a 25% performance improvement.
- Authored reusable unit-test foundation, boosting quality control efficiency by over 30% in identifying bugs and web accessibility issues.
- Engaged closely with Software Architect and Backend engineers to oversee APIs and streamline software workflow with Scrum, resulting in a 25% decrease in delivery time and improve success rate.
ServiceNow Developer
BESTSELLER A/S - Nov 2022 - Dec 2023
ServiceNow Developer
BESTSELLER A/S - Nov 2022 - Dec 2023
- Implemented custom ServiceNow applications leveraging advanced features such as Flow Designer, Service Catalog, SLAs, ACLs and Mobile Agent.
- Configured Email Notifications with SMTP, POP3 protocols to notify users about specific activities in the system.
- Collaborated with Departments and Business stakeholders to translate business requirements into functional requirements within ServiceNow.
- Developed various UI Actions, and Policies, Client Scripts, Business Rules, Inbound and Outbound Email, Catalog Client Scripts, and created Scheduled Job, Critical Reports, Gauges as per the Business needs.
Senior Software Engineer
CODE OF AFRICA LTD - June 2021 - Aug 2022
Senior Software Engineer
CODE OF AFRICA LTD - June 2021 - Aug 2022
CODE OF AFRICA is a German based outsourcing hub connecting European businesses with East African top software engineers, prioritizing job creation, education, and changing perceptions in Europe.
- Boosted SEO and Google search rankings for the flagship Code of Africa website, elevating organic traffic by an impressive 40%, driving greater user engagement and brand recognition.
- Led the frontend team, steering them towards excellence while delivering constructive feedback, resulting in a 30% improvement in code quality. Acted as a mentor to junior developers, fostering a collaborative, growth-oriented atmosphere within the company.
- Masterminded the evolution of an 8+ year-old white-label system, meticulously maintaining and enhancing its functionalities with PHP and ElasticSearch, achieving a 20% increase in system efficiency and user satisfaction.
Senior Frontend Engineer
ALFATIER GmbH - Nov 2021 – Aug 2022
Senior Frontend Engineer
ALFATIER GmbH - Nov 2021 – Aug 2022
Headquartered in Hamburg, Germany, ALFATIER is renowned for its expertise in cloud optimization and transformation. Specializing in architecture reviews and cost management, they ensure efficiency and reliability for businesses.
- Led as an early-stage frontend engineer, the development of our flagship product, collaborating closely with the UI/UX designer to transform mockups into responsive flawless interfaces, prioritizing user delight.
- Developed frontend features for the MVP version of the product, focusing on performance, scalability, and maintainability.
- Integrated monitoring and analytics tools such as LogRocket and NewRelic to gather insights into user interactions, performance metrics, and application errors, increasing the product efficiency by 40%.
- Implemented HubSpot tracking codes and forms to capture user data and behavior, enabling automated and personalized marketing campaigns, customer engagement, and targeted communications.
Frontend Engineer
RECONSTRUCTION - June 2021 – Nov 2021
Frontend Engineer
RECONSTRUCTION - June 2021 – Nov 2021
RECONSTRUCTION is an educational platform created to reshape traditional cultural teachings, prioritizing portrayal of African descent in a positive light, aiming to celebrate the rich legacy and contributions of the community.
- Integrated frontend interfaces displaying Thinkific courses, modules, and lessons, ensuring seamless user experience. Configured Thinkific APIs for authentication, enrolment, and progress tracking directly within the frontend.
- Maintained an intuitive admin dashboard to facilitate efficient management of platform content, courses, user data, and system settings.
- Achieved a 30% improvement in application performance and maintainability through successfully re-architecting the entire customer-facing frontend application, integrating Clean Code and Domain-Driven Design principles.
- Introduced forking/rebasing Git workflow, easing collaboration and enhancing code integration, alleviating previous workflow challenges, thus improving development efficiency and code delivery by 70%.
My Contributions
A collection of impactful and innovative projects that highlight my skills, creativity, and passion for solving real-world challenges through technology.
ServiceNow
Multiple applications using Flow Designer, Service Catalog, SLAs, ACLs, and Mobile Agent. Configured Email Notifications (SMTP/POP3) for system alerts. Collaborated with stakeholders to translate business needs into functional requirements and created UI Actions, Client Scripts, Business Rules, Scheduled Jobs, and critical reports.
EzyAgric
An on-demand web and mobile platform offering inclusive, data-driven access to production, marketing, and finance services for Ugandan farmers and agribusinesses, helping them to map gardens, access inputs, services, records, and markets that pay for quality.
Motory
A German vehicle's marketplace with a community-driven environment. It allows users to buy and sell vehicles, access detailed automotive information, and participate in discussions. The platform offers documentation for vehicle transactions and serves as a hub for automotive enthusiasts.
Tembea
A platform through which Andela automates all processes with regards to cab requests, routes management and reconciliation, employing a Slack and web application. It solves the needs of Operations Department and the Travel Team with tools to aid trip management and data collection for visiting Andelans to other institutions.
My Tech Universe
I’ve had a blast tinkering with some pretty cool tech. Here are the ones that have significantly shaped my expertise.
