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Hi, I'm Hillary Okello, an enthusiastic AI programmer and software developer with over 4 years of experience building robust web applications. I specialise in backend development with Ruby, Ruby on Rails, and Python, and I have strong front-end skills with JavaScript frameworks like React and Redux. I graduated from Udacity's AI Programming with Python course and I'm proficient in building intelligent, scalable solutions using Python. I enjoy collaborating with cross-functional teams to deliver real-world value. In my recent roles, I led technical vision for property management apps, built backends with Django, FastAPI, PostgreSQL, and AWS, and implemented payment integrations and ERP-linked notification systems. I'm passionate about crafting user-centric software and continuously learning new technologies.…Hi, I'm Hillary Okello, an enthusiastic AI programmer and software developer with over 4 years of experience building robust web applications. I specialise in backend development with Ruby, Ruby on Rails, and Python, and I have strong front-end skills with JavaScript frameworks like React and Redux. I graduated from Udacity's AI Programming with Python course and I'm proficient in building intelligent, scalable solutions using Python. I enjoy collaborating with cross-functional teams to deliver real-world value. In my recent roles, I led technical vision for property management apps, built backends with Django, FastAPI, PostgreSQL, and AWS, and implemented payment integrations and ERP-linked notification systems. I'm passionate about crafting user-centric software and continuously learning new technologies.

Hillary Okello

Full Stack Developer, Back-End Developer, Web Developer, +2

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Hi, I'm Hillary Okello, an enthusiastic AI programmer and software developer with over 4 years of experience building robust web applications. I specialise in backend development with Ruby, Ruby on Rails, and Python, and I have strong front-end skills with JavaScript frameworks like React and Redux. I graduated from Udacity's AI Programming with Python course and I'm proficient in building intelligent, scalable solutions using Python. I enjoy collaborating with cross-functional teams to deliver real-world value. In my recent roles, I led technical vision for property management apps, built backends with Django, FastAPI, PostgreSQL, and AWS, and implemented payment integrations and ERP-linked notification systems. I'm passionate about crafting user-centric software and continuously learning new technologies.…Hi, I'm Hillary Okello, an enthusiastic AI programmer and software developer with over 4 years of experience building robust web applications. I specialise in backend development with Ruby, Ruby on Rails, and Python, and I have strong front-end skills with JavaScript frameworks like React and Redux. I graduated from Udacity's AI Programming with Python course and I'm proficient in building intelligent, scalable solutions using Python. I enjoy collaborating with cross-functional teams to deliver real-world value. In my recent roles, I led technical vision for property management apps, built backends with Django, FastAPI, PostgreSQL, and AWS, and implemented payment integrations and ERP-linked notification systems. I'm passionate about crafting user-centric software and continuously learning new technologies.

Available to hire

Hi, I’m Hillary Okello, an enthusiastic AI programmer and software developer with over 4 years of experience building robust web applications. I specialise in backend development with Ruby, Ruby on Rails, and Python, and I have strong front-end skills with JavaScript frameworks like React and Redux. I graduated from Udacity’s AI Programming with Python course and I’m proficient in building intelligent, scalable solutions using Python.

I enjoy collaborating with cross-functional teams to deliver real-world value. In my recent roles, I led technical vision for property management apps, built backends with Django, FastAPI, PostgreSQL, and AWS, and implemented payment integrations and ERP-linked notification systems. I’m passionate about crafting user-centric software and continuously learning new technologies.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

English

Fluent

Work Experience

Backend Developer at Techbiz Africa

March 1, 2025 - Present

Leading the technical vision for a real estate property management application; backend developed with Django, FastAPI, PostgreSQL, and AWS; integrated a multi-method payment system; built ERP-integrated notification system and ensured API security and scalable performance.

CTO / Co-Founder at TillDash (formerly Komerss)

July 1, 2024 - Present

Leading the technical vision for TillDash, a mobile self-checkout app; backend with Django, PostgreSQL, and AWS; designed split-payment APIs and inventory management; real-time transaction reporting and scalable mobile checkout.

Software Developer at Bilendo GmbH

October 1, 2022 - July 31, 2023

Implemented innovative features, increased test coverage by 20% with Selenium and RSpec, refactored legacy systems for improved scalability, and collaborated in an agile environment to deliver robust API-driven solutions.

Software Engineer at Turing

September 1, 2021 - October 31, 2022

Delivered interactive, mobile-optimised web interfaces with React.js, Redux, and Tailwind; built scalable back-end applications with Ruby on Rails and PostgreSQL; designed RESTful APIs and implemented GDPR-compliant security.

Code Reviewer & Mentor at Microverse

September 1, 2021 - November 1, 2022

Reviewed over 100 projects, mentored 20+ junior developers, delivered technical workshops on clean code, Git workflows, and debugging; supported a globally diverse learning community.