Tunji O.

Tunji O.

Senior Software Engineer

Toronto, Canada
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About Me

Tunji is a Senior Software Engineer with 10+ years of experience iterating innovative software solutions with a focus on writing clean, secure, and modular software application code on client projects. He specializes in Android SDK and can competently handle modern back-end and front-end tech stacks like Node.js, Express.js, Vue.js, Nuxt.js in delivering solutions for clients.

Work history

UpStack
UpStack
Senior Software Engineer
2019 - Present (5 years)
Remote
  • Creating and developing innovative software solutions for clients across a broad range of industries.

  • Participating in scrums consisting of cross-functional teams, both software and hardware.

  • Ensuring that features are being delivered efficiently and on time.

Joist
Joist
Senior Android Engineer
2021 - 2023 (2 years)
Toronto, Canada
  • Led a team of Android engineers and managed cross-functional collaborations with other engineers, testers, designers, product managers, and stakeholders to maintain and enhance the Joist Android app, focusing on growth, performance, and scalability.

  • Advocated for Android architectural best practices and continually improved the user experience of the Joist Android app for growth, performance, and scale, resulting in 15% more downloads and 20% more payment processes compared to the prior year.

  • Led the initiative to improve the rating for the Joist Android app using timely prompts, with a successful increase from 4.0 to 4.7 stars rating out of 5 on the Google Play Store.

Everli (formerly Supermercato24)
Everli (formerly Supermercato24)
Senior Android Engineer
2020 - 2020
Remote
  • Enhanced the Shopper Android app through targeted feature updates and performance optimizations, resulting in improved user satisfaction and engagement.

  • Led the modernization efforts and executed a transformational change to completely rebrand the Android app from Supermercato240 to Everli within the agreed timeline, in collaboration with designers and back-end developers, taking advantage of Material Design, leading to 20% more brand visibility and awareness.

  • Implemented an in-house update procedure and library for improved app reliability and stability.

AndroidAndroid Material Design Android JavaKotlin
Numbrs (now Self Custody)
Numbrs (now Self Custody)
Android Engineer
2018 - 2019 (1 year)
Remote
  • Played a key role in the Store Android team at Numbrs Personal Finance AG, leveraging expertise in Java and Kotlin to enhance the discovery experience of financial products, contributing to the app's overall success and user engagement.

  • Implemented an innovative video slideshow (with A/B testing), a new concept different from the conventional image slideshows, resulting in a notable increase in user engagement metrics and signup rates (+15%).

  • Successfully migrated legacy code from Java to Kotlin with the use of Reactive Extensions.

Happydrip
Happydrip
Happiness Engineer
2015 - Present (9 years)
Toronto, Canada
  • Created a course and eBook on happiness.

  • Working on happiness engineering.

IT Project Management
Synesthesia
Synesthesia
Android Developer
2014 - 2014
Turin, Italy
  • Designed and developed Evapp, an event automation app with context awareness, using Estimote Bluetooth Low Energy beacons.

  • Provided support for the entire application lifecycle including concept, design, test, and release phases.

  • Documented all technical design, code, build, and release procedures.

Tinypoke
Tinypoke
Software Consultant
2014 - Present (10 years)
Remote
  • Providing consulting services to multiple companies, delivering tailored solutions and driving project success, with successful development and testing of 8+ high-quality applications.

  • Making extensive use of secure RESTful APIs to consume and display data and to send back data to back-end systems for processing.

  • Ensuring compliance with best practices for security, scalability, maintainability, accessibility, and performance throughout the development lifecycle.

Eastern Mediterranean University
Eastern Mediterranean University
Mobile Application Developer
2012 - 2012
Famagusta, Cyprus

Created a mobile application (EMUPlaces) that shows points of interest around the Eastern Mediterranean University (EMU).

eHealth Africa
eHealth Africa
Web Developer
2011 - 2011
Kano, Nigeria

Designed, implemented, and tested a data collection/validation software.

Portfolio

Android Developer - Evapp
Android Developer - Evapp

With Evapp, users can automatically check in and check out using Estimote Bluetooth beacons during conferences and events. It also allows conference hosts to initiate live polls and get feedback from the audience in real time. Developed Evapp as a context-aware Android application using BLE knowledge, garnered from my master's thesis in event automation with context awareness using Estimote Bluetooth Low Energy beacons. Handled the overall app architecture from conception to delivery.

Android Developer - L'Oréal Professionnel Catalogo
Android Developer - L'Oréal Professionnel Catalogo

Developed a catalogue app for sellers of the L'Oréal brand to showcase their best/new products. Worked and collaborated with a UI designer and back-end developer as a team for the solution. Created the L'Oréal Professionnel Catalogo Android application from scratch and managed the app's consumption of REST APIs to create a front-end Android client on the app.

Android Developer - Search Bubble
Android Developer - Search Bubble

Designed and developed Search Bubble as an open-source Android application for users to float a bubble to perform automatic clipboard monitoring and instant searching. The Search Bubble app includes additional functions to instantly search, translate, message, call, locate, and share currently copied or other items on a clipboard.

Software Developer - GetCountryCode
Software Developer - GetCountryCode

An API for users to retrieve important codes about any country with easy-to-use REST API endpoints. Led the development to ensure scalability and ease of use for both new and existing users, oversaw the development of the app architecture, and protected the REST API endpoints with API tokens.

Android Developer - Sutter Professional Italia
Android Developer - Sutter Professional Italia

Worked as part of a team on the development of an Android application to help Sutter's salesforce provide support services to customers. Iterated the Sutter Professional Italia Android application and manipulated REST APIs on the solution for the app's front-end Android client.

Education

Certificate, Project Management
Certificate, Project Management
University of Toronto - Canada
2023 - 2023
MSc Computer Software Engineering
MSc Computer Software Engineering
Politecnico di Torino - Italy
2012 - 2014 (2 years)
BSc Computer Engineering
BSc Computer Engineering
Eastern Mediterranean University - Northern Cyprus
2009 - 2012 (3 years)