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I am Joseph Sseremba, a senior mobile and full-stack software engineer based in Kampala, Uganda. I have 8+ years delivering innovative fintech, telecom, and cross-platform mobile solutions. I have a proven track record leading 35+ MTN customer journeys and elevating global platforms with a focus on performance, security, and delightful user experiences. I excel at blending strategic vision, technical expertise, and user-centric design to create impactful digital products that empower businesses and customers alike. I thrive in collaborative environments and enjoy turning complex problems into elegant, scalable solutions.…I am Joseph Sseremba, a senior mobile and full-stack software engineer based in Kampala, Uganda. I have 8+ years delivering innovative fintech, telecom, and cross-platform mobile solutions. I have a proven track record leading 35+ MTN customer journeys and elevating global platforms with a focus on performance, security, and delightful user experiences. I excel at blending strategic vision, technical expertise, and user-centric design to create impactful digital products that empower businesses and customers alike. I thrive in collaborative environments and enjoy turning complex problems into elegant, scalable solutions.

Joseph Sseremba

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

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I am Joseph Sseremba, a senior mobile and full-stack software engineer based in Kampala, Uganda. I have 8+ years delivering innovative fintech, telecom, and cross-platform mobile solutions. I have a proven track record leading 35+ MTN customer journeys and elevating global platforms with a focus on performance, security, and delightful user experiences. I excel at blending strategic vision, technical expertise, and user-centric design to create impactful digital products that empower businesses and customers alike. I thrive in collaborative environments and enjoy turning complex problems into elegant, scalable solutions.…I am Joseph Sseremba, a senior mobile and full-stack software engineer based in Kampala, Uganda. I have 8+ years delivering innovative fintech, telecom, and cross-platform mobile solutions. I have a proven track record leading 35+ MTN customer journeys and elevating global platforms with a focus on performance, security, and delightful user experiences. I excel at blending strategic vision, technical expertise, and user-centric design to create impactful digital products that empower businesses and customers alike. I thrive in collaborative environments and enjoy turning complex problems into elegant, scalable solutions.

Available to hire

I am Joseph Sseremba, a senior mobile and full-stack software engineer based in Kampala, Uganda. I have 8+ years delivering innovative fintech, telecom, and cross-platform mobile solutions. I have a proven track record leading 35+ MTN customer journeys and elevating global platforms with a focus on performance, security, and delightful user experiences.

I excel at blending strategic vision, technical expertise, and user-centric design to create impactful digital products that empower businesses and customers alike. I thrive in collaborative environments and enjoy turning complex problems into elegant, scalable solutions.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Senior Mobile Software Engineer (Hybrid) at MTN Uganda (courtesy of Comviv a Technologies and InfY Strat Software Services)

July 1, 2019 - Present

Led 35+ customer journeys across MTN MoMO, MyMTN, Agent, and Manda platforms; pioneered MTN IPO digital journey enabling seamless investor onboarding and transactions; enhanced 20+ digital products with IP-based solutions and rich media integration; delivered cross-platform mobile apps (iOS & Android) for streamlined access to telecom and financial services; championed integration of interactive financial services into MTN's digital ecosystem; collaborated with project managers on technical documentation, system evaluations, and cross-functional planning.

Senior Frontend Developer at Benzinga | Detroit, MI (Remote)

January 1, 2020 - October 3, 2025

Spearheaded frontend initiatives for Benzinga Pro, a real-time news and data platform; advanced Quote MVP with actionable stock news, trading signals, and in-chatroom features; resolved critical tickets and implemented UX upgrades and performance improvements to boost trader confidence.

Senior Full-Stack Developer at Line 23, Kampala Uganda

July 1, 2019 - October 3, 2025

Designed and developed an internal video conferencing platform, improving communication capabilities, user experience, and system stability. Leveraged Meteor JS, Blaze.js, React, HTML, Electron, and MongoDB to build scalable solutions.

Software Developer / Consultant at Flock of Birds, Kampala Uganda

May 1, 2016 - October 3, 2025

Implemented backend for i-College parent-student-teacher interaction platform (Mendix, Java). Developed Q-Pass parking clearance app (Mendix, Java, iOS Swift, PostgreSQL). Delivered feature releases for Monitoring & Evaluation tools using Mendix and Java stack. Built and optimized Windows desktop application for enterprise apps (C#, PostgreSQL). Built and optimized App Store widgets for enterprise apps; delivered features and improved functionality and usability.

Senior Mobile Software Engineer (Hybrid) at MTN Uganda (Courtesy of Comviva Technologies and Infy Strat Software Services)

July 1, 2019 - Present

Spearheaded 35+ customer journeys across MTN MoMo, MyMTN, Agent, and Mand a platform services; spanned telecom, fintech, fiber, and gamification services. Pioneered the first MTN IPO digital journey on MoMo, enabling seamless investor onboarding and transactions; benchmark for customer-centric innovation. Enhanced 20+ digital products with IP-based solutions and rich media integration, improving service delivery across data, voice, and SMS. Delivered cross-platform mobile apps (iOS & Android) to streamline access to telecom and financial services, boosting adoption and engagement. Championed integration of interactive financial services into MTN's digital ecosystem, improving customer retention and satisfaction. Collaborated with Project Managers on technical documentation, system evaluations, and cross-functional planning to ensure timely execution.

Senior Frontend Developer at Benzinga | Detroit, MI (Remote)

January 31, 2020 - October 3, 2025

Contributed to Benzinga Pro, a real-time news and data platform, ensuring high reliability and usability for thousands of retail traders. Advanced Benzinga Quote MVP with actionable stock news, trading signals, and intelligent chat-room features. Resolved critical tickets, implemented feature upgrades, and improved UX and platform performance, increasing trader confidence.

Senior Full-Stack Developer at Line 23, Kampala Uganda

July 1, 2019 - October 3, 2025

Software Developer / Consultant at Flock of Birds, Kampala Uganda

May 1, 2016 - October 3, 2025

Implemented back end for i- College parent-student-teacher interaction platform (Mendix, Java). Developed Q-Pass parking clearance app (Mendix, Java, iOS Swift, PostgreSQL). Delivered feature releases for Monitoring & Evaluation tools using Mendix and Java stack. Built an i- College Windows desktop application (C#, PostgreSQL). Built and optimized App Store widgets for enterprise apps, improving functionality, performance, and usability.

Senior Mobile Software Engineer (Hybrid) at MTN Uganda

July 1, 2019 - Present

Spearheaded 35+ customer journeys across MTN MoMo, MyMTN, Agent and Mandap platform services across telecom, fintech, fiber, and gamification services. Pioneered the first MTN IPO digital journey on MoMo enabling seamless investor onboarding and transactions, a benchmark for customer-centric innovation. Enhanced 20+ digital products with IP-based solutions and rich media integration, improving service delivery across data, voice, and SMS. Delivered cross-platform mobile apps (iOS & Android) that streamlined access to telecom and financial services, boosting adoption and engagement. Championed integration of interactive financial services into MTN’s digital ecosystem, improving customer retention and satisfaction. Collaborated with Project Managers on technical documentation, system evaluations, and cross-functional planning, ensuring timely and effective execution.

Senior Frontend Developer at Benzinga

January 31, 2020 - October 3, 2025

Contributed to Benzinga Pro, a leading real-time news and data platform, ensuring high reliability and usability for thousands of retail traders. Advanced Benzinga Quote MVP with actionable stock news, trading signals, and intelligent chatroom features. Resolved critical tickets, implemented feature upgrades, and improved UX and platform performance, enhancing trader confidence.

Senior Full-Stack Developer at Line 23

July 31, 2019 - October 3, 2025

Software Developer / Consultant at Flock of Birds

May 31, 2016 - October 3, 2025

Implemented back end for i-College parent-student-teacher interaction platform (Mendix, Java). Developed Q-Pass parking clearance app (Mendix, Java, iOS Swift, PostgreSQL). Delivered feature releases for Monitoring & Evaluation tools using Mendix and Java stack. Built i-College Windows desktop application (C#, PostgreSQL). Built and optimized App Store widgets for enterprise apps, improving functionality, performance, and usability.