Kelvin Ossai

Kelvin Ossai

Senior Frontend Engineer

Lagos, Nigeria

#OpenToWork

About

Senior Frontend Engineer with 6+ years of experience building scalable, high-performance web applications using React, Next.js, Vue.js, and TypeScript. Proven track record of leading frontend architecture for fintech platforms, improving performance by up to 40% and driving user engagement and revenue growth. Experienced in cloud environments (AWS, Docker), design systems (Storybook), and cross-functional collaboration.

What I'm looking for

Senior Frontend / Full Stack Engineer roles in fast paced product driven teams where I can lead architecture, ship impactful features and grow. Open to remote or relocation opportunities with visa sponsorship.​​​​​​​​​​​​​​​​

Experience

Coronation Group

Senior Frontend Engineer

Coronation Group

Present

• Led frontend architecture for enterprise financial platforms using React, Next.js, and TypeScript, supporting multiple business units including asset management, wealth, insurance, and banking • Built and scaled a centralised Storybook design system, standardising UI across teams and reducing development time by 20% • Developed scalable, accessible user interfaces using Tailwind CSS, improving performance and consistency across applications • Collaborated with cross-functional teams to deliver secure, compliant solutions using Azure and Docker in an Agile environment • Optimised application performance and frontend architecture, improving load speed and overall user experience

ReactNext.jsTypeScript

STEM Mentor

Sproutly4Good X Charterhouse

• Delivered coding workshops and supported STEM education initiatives

Coding WorkshopsSTEM EducationMentoring
Google Developer Student Club

Technical Mentor

Google Developer Student Club

• Mentored developers and facilitated workshops on modern web development

Web DevelopmentMentoringWorkshops
SoftNexus

Frontend Developer

SoftNexus

• Developed performance-optimised applications using React and Vue.js, reducing load time by 20% • Improved user engagement and lead generation through SEO and accessibility improvements • Conducted usability testing and implemented UI improvements, increasing task completion by 10% • Maintained clean, scalable codebases and improved onboarding efficiency for new developers

ReactVue.jsSEO
Glovaro

Frontend Developer

Glovaro

• Built responsive web applications using Vue.js and Nuxt.js • Improved mobile performance and user retention by 30% • Implemented SEO strategies, improving search rankings by 20%

Vue.jsNuxt.jsSEO
Houseriver

Fullstack Developer

Houseriver

• Built a full-stack investment platform and admin system managing 500+ users, supporting onboarding, KYC, and portfolio operations • Integrated KYC providers (Smile Identity, IdentityPass) and financial APIs including Alpaca (trading) and Risevest (investment/ledger systems) • Developed backend APIs using Node.js, reducing onboarding time by 30% and improving system efficiency • Designed and implemented investment logic and user flows, enabling scalable and structured financial operations • Built high-conversion landing pages and frontend interfaces using Vue.js, increasing user sign-ups by 20% • Improved SEO and application performance, increasing organic traffic by 25%

Node.jsVue.jsSEO
Sproutly Africa

Lead Frontend Developer

Sproutly Africa

• Led frontend architecture for a multi-tenant fintech platform serving 1,000+ schools, enabling invoicing, paylinks, and financial tracking • Built core financial features including invoice generation, payment tracking, and collection workflows using Vue.js, Nuxt.js, and TypeScript • Integrated payment systems and KYC/compliance workflows, ensuring secure and regulated financial transactions • Improved user engagement by 35% and contributed to 20% revenue growth through performance optimisation and feature delivery • Led a team of developers, conducted code reviews, and managed Agile workflows using Jira and GitHub, reducing bugs by 20% • Collaborated with product and design teams using Figma, improving user experience and increasing customer satisfaction by 15%

Vue.jsNuxt.jsTypeScript

Education

Lagos State University

Lagos State University

B.Sc. · Computer Science

2017 – 2022

Skills

SEOPostgreSQLMongoDBJiraStorybookGitHubGitDockerAWSGraphQLREST APIsNode.jsTailwind CSSCSS3HTML5JavaScriptTypeScriptVue.jsNext.jsReact

Languages

English (Native or bilingual proficiency)