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I'm a User Experience Designer who helps businesses build websites and mobile apps people actually enjoy using. From UX research and wireframing to high-fidelity design. I handle the full design process with enough technical fluency to collaborate seamlessly with developers and ensure nothing gets lost in handoff.…

Samuel Mwindaar Tengantengan

UI Designer, UX Designer, Front-End Developer, +3

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I'm a User Experience Designer who helps businesses build websites and mobile apps people actually enjoy using. From UX research and wireframing to high-fidelity design. I handle the full design process with enough technical fluency to collaborate seamlessly with developers and ensure nothing gets lost in handoff.…

Available to hire

I’m a User Experience Designer who helps businesses build websites and mobile apps people actually enjoy using. From UX research and wireframing to high-fidelity design. I handle the full design process with enough technical fluency to collaborate seamlessly with developers and ensure nothing gets lost in handoff.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

UX Designer at Innvennico TechnoLab

December 1, 2022 - February 1, 2025

Led user experience design across multiple projects, collaborating with product managers, developers, and clients. Designed engaging landing pages and mobile apps that boosted conversion rates by 20-30%, significantly enhancing client acquisition and retention. Conducted comprehensive competitor analysis and stakeholder interviews, leading to the creation of user personas, wireframes, and high-fidelity prototypes, contributing to a measurable increase in user engagement.

Information Technology Officer|Intern at Regional Health Directorate - Ghana

February 1, 2021 - December 1, 2021

Led front-end development using React JS; performed network troubleshooting to improve connectivity; assisted in coverage of seminars and organizational events to enhance attendance and social media visibility.

Front End Developer at Savsign Global Solution - Ghana

August 1, 2020 - December 1, 2020

Led front-end development and design of a user-friendly SMS application (Kpododo) dashboard using PHP.

Training Mentor & Chief Technology Officer at Nectalab - Co-founder

September 1, 2019 - January 1, 2022

- Led the development of an MVP telemedicine app using React Native; designed a telemedicine app connecting patients in rural areas with doctors; created high-fidelity mockups from user research and data-driven feedback. Mentored and developed a curriculum for training over 50 people on website development (HTML, CSS, JavaScript, WordPress) and mentored over 15 kids on introduction to engineering using gadgets and DIY science sets.

Product Designer at Freelance

June 1, 2022 - Present

Supported end-to-end design process for multiple client projects from discovery to wireframing, prototyping, and high-fidelity UI delivery; produced wireframes and interactive prototypes for web and mobile; contributed to design systems with reusable components and tokens in Figma; conducted usability testing and synthesized insights to improve onboarding; applied WCAG accessibility and mobile-first principles; collaborated with engineers and product managers within Agile/Scrum; delivered design specs and documentation for accurate implementation.

Product Designer at Invennico TechnoLab

December 1, 2022 - February 1, 2025

Worked with a cross-functional team on 15+ web and mobile projects; created wireframes, user flows, and interactive prototypes; contributed to a shared design system used across brands; performed UX audits, competitor analysis, and usability testing; identified friction points and increased conversion rates by 20–30%; defined incremental product design development paths and communicated rationale to stakeholders across multiple time zones.

Co-founder, CTO & Training Mentor at Nectalab

September 1, 2019 - January 1, 2022

Led product design for a telemedicine MVP; conducted user research, created personas and journey maps, and designed high-fidelity mockups based on data-driven feedback from underserved Ghanaian communities; collaborated with an engineering team using React Native to ensure design feasibility; designed intuitive mobile-first interfaces for users with varying digital literacy; developed and delivered training curriculum for 50+ participants on web development.

IT Officer (Intern) at Regional Health Directorate

February 1, 2021 - December 1, 2021

Led front-end development of internal web applications using React JS to solve organizational pain points; improved workflows and system connectivity through structured troubleshooting.