I'm a collaborative and customer-focused Senior iOS Engineer with proven expertise across the full software development stack based in Perth, Australia. Recognized for bringing people together, adapting communication to diverse teams and clients, and driving projects from concept to delivery with precision and care. Skilled in managing project scope, timelines, budgets, and stakeholder engagement, while maintaining the highest standards of code quality, testing, and documentation. Empathetic and solutions-driven, with a track record of helping customers streamline processes, reduce time-to-market, and achieve measurable growth in reach, revenue, and engagement. Loyal, dependable, and passionate about creating mobile platforms that deliver lasting value. --- **Employment and project experience** **SENIOR iOS ENGINEER**Kocela. _April 2019 - June 2025_ **MOBILE ENGINEER - iOS** Kocela. _January 2016 - March 2019_…

Kelvin Kosgei

PRO

I'm a collaborative and customer-focused Senior iOS Engineer with proven expertise across the full software development stack based in Perth, Australia. Recognized for bringing people together, adapting communication to diverse teams and clients, and driving projects from concept to delivery with precision and care. Skilled in managing project scope, timelines, budgets, and stakeholder engagement, while maintaining the highest standards of code quality, testing, and documentation. Empathetic and solutions-driven, with a track record of helping customers streamline processes, reduce time-to-market, and achieve measurable growth in reach, revenue, and engagement. Loyal, dependable, and passionate about creating mobile platforms that deliver lasting value. --- **Employment and project experience** **SENIOR iOS ENGINEER**Kocela. _April 2019 - June 2025_ **MOBILE ENGINEER - iOS** Kocela. _January 2016 - March 2019_…

Available to hire

I’m a collaborative and customer-focused Senior iOS Engineer with proven expertise across the full software development stack based in Perth, Australia. Recognized for bringing people together, adapting communication to diverse teams and clients, and driving projects from concept to delivery with precision and care.

Skilled in managing project scope, timelines, budgets, and stakeholder engagement, while maintaining the highest standards of code quality, testing, and documentation.

Empathetic and solutions-driven, with a track record of helping customers streamline processes,
reduce time-to-market, and achieve measurable growth in reach, revenue, and engagement.

Loyal, dependable, and passionate about creating mobile platforms that deliver lasting value.

Employment and project experience

SENIOR iOS ENGINEERKocela.
April 2019 - June 2025

MOBILE ENGINEER - iOS Kocela.
January 2016 - March 2019

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Skills

Experience Level

UI
Expert
Swift
Expert
Jira
Expert
iOS
Expert
API
Expert
Leadership
Expert
Java
Expert
Kotlin
Beginner
Android
Beginner

Language

English
Advanced

Work Experience

Senior Software Engineer - Engineering & Support at Kocela Limited
June 1, 2025 - October 12, 2025
Lead a team of 11 across Technology & Innovation, conceptualized and led technical design, operations and engineering support initiatives for mobile platforms, ensuring high quality and reliable service delivery across mobile and backend platforms. Drove development and upgrades of the KC Bank mobile platform (Android and iOS) with seamless core banking integration. Helped grow the customer base from ~100k to over 9M+ in a ≈9-year window, improved transaction speed and app performance, and delivered key apps such as TendePay iOS and a mobile banking ecosystem in partnership with MPesa. Enhanced UI/UX and customer experience while aligning with stakeholder expectations and project objectives.
Mobile / Support Engineer at Kocela Limited
March 1, 2018 - October 12, 2025
Provided frontline application support during and after deployments; worked closely with internal users and clients to track and resolve workflow issues using Jira Service Management. Developed and deployed iOS applications within the engineering team. Led mobile initiatives such as upgrading KC Bank iOS/Android apps, improving UI/UX and customer experience, and ensuring timely delivery of features; contributed to a culture of continuous learning and improvement.
Senior Software Engineer - Engineering & Support at Kocela Limited
June 1, 2025 - October 12, 2025
Led a team of 11 people and contractors in the Technology & Innovation division, conceptualizing and leading technical design, operations and engineering support initiatives for mobile platforms. Drove the build and upgrade of the KCB Bank mobile platform (Android and iOS), delivering a seamless customer experience and increasing the merchant base from ~100k to 9M+ over ~9 years. Spearheaded the TendPay iOS app development, digitizing Kenya-based business operations and handling a monthly TPV of ~AUD 18.7M. Served as the lead engineer for the Voom iOS app, delivering a successful partnership project between KCB Bank and M-Pesa. Managed stakeholder expectations, project scope, timelines and budgets while maintaining high standards of code quality, testing and documentation.

Education

Bachelor of Science (Computer Technology) at Jomo Kenyatta University of Agriculture and Technology
September 12, 2012 - November 28, 2018

Qualifications

Diploma Software Development - City & Guilds
February 2, 2011 - November 4, 2011

Industry Experience

Software & Internet, Financial Services, Professional Services, Telecommunications, Media & Entertainment
    paper Tende Pay Mobile App - iOS

    Led the end-to-end development of the Tende Pay iOS ecosystem. I focused on building a secure, high-performance fintech interface that bridges the gap between traditional banking and mobile money. Key contributions included streamlining B2B payment modules, enhancing UI/UX for financial reporting tools, and ensuring top-tier security for user funds.

    paper KCB Mobile App - iOS

    The KCB App is a platform that gives KCB customers access to
    banking and financial services right from the App; It boasts of a
    carefully curated user interface, delivering a seamless customer
    experience.
    The features include, but are not limited to;

    • Access to a bank account, send money, and withdraw cash.
    • Access to instant loans
    • Ability to link, load, and track credit cards.
    • Access charts and graphs to visualize expenditure.

    Activities:
    Design ( Was involved in the design of the App from scratch; from paper mockups to wireframes, to graphical UIs ),
    Development ( Implementation of the designs (UI/UX) ), Integration,
    Documentation, Testing, Deployment, and support.
    Technologies: Swift, Objective-C.