Tunji A.

About Me

Tunji is a Senior Full-stack Developer with 10+ years of experience building scalable, secure, and high-performance software solutions across industries like fintech, healthtech, real estate, and telecommunications. He has proven expertise in full-stack development, DevOps, cloud infrastructure, and automation. Tunji is adept at transforming complex business requirements into efficient, customer-centric software solutions. He possesses a broad skillset for web application development including PHP, JavaScript, Laravel, MySQL, WordPress, and WooCommerce. Tunji is passionate about innovation and technology and has solid experience with all things back end.

Frontend

HTML5 React Vue

Backend

Laravel PHP WooCommerce API

Database

DevOps

Amazon Web Services (AWS)

Other

Work history

UpStack
UpStack
Senior Full-stack Developer
2021 - Present (4 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.

Freelance
Freelance
Full-stack Developer
2022 - Present (3 years)
Remote
  • Developed several WordPress themes from provided designs and extended themes following best practices using child themes, among other features provided by WordPress for building the front end.

  • Built and refactored several WordPress integrations working with different parts, tools, and plugins with notable mentions, including the CLI, REST API, Cron, Custom Routing, roots.io, and WooCommerce, among others.

  • Evaluated and advised on a solution built to handle hosting infrastructure for WordPress applications using Docker, Nginx, and PHP-FPM, with a focus on security and performance optimizations.

  • Automated repeated tasks and deployments for clients using CI/CD tools and integrations such as GitHub Actions, Bitbucket Pipelines, and Jenkins.

IQVIA
IQVIA
Full-stack Engineer
2021 - 2024 (3 years)
Remote
  • Automated repetitive tasks with GitHub Actions, reducing manual overhead and improving team productivity.

  • Contributed to full-stack web applications using Laravel, PostgreSQL, Vue.js, and Docker, with a strong focus on TDD to ensure robust and scalable solutions.

  • Designed and built gamification features for the COVID Active Research Experience, increasing user engagement by 25%.

  • Built software for tracking COVID-19 infections and vaccination statuses for two major US professional sports associations, enhancing operational transparency.

  • Delivered advanced features for a Breast Cancer Research Platform, including custom back-end query filters, reusable front-end components, and a user-friendly drag-and-drop query builder to simplify data exploration for researchers.

Estate Intel
Estate Intel
Senior Software Engineer
2018 - 2018
Remote
  • Managed the development of a real estate data product as a Laravel monolith in collaboration with a freelance UI/UX designer and the product owner.

  • Assessed, interviewed, and onboarded engineers and managed the internal team by defining the entire code collaboration process and coordinating developers.

  • Led refactoring and product migration from a monolith to a Vue SPA powered by a Laravel back end.

  • Migrated the WordPress blog to a headless Vue SPA powered by the WordPress REST API.

JavaScriptVue Laravel Blade TemplatesWordPressLaravel ForgeAmazon Web Services (AWS) WordPress REST API Single Page Applications (SPA)
Undertow Creative
Undertow Creative
Full-stack Developer
2017 - 2021 (4 years)
Remote
  • Developed a tool to migrate data from a legacy MSSQL application, considering the data structure, custom data mapping, and character encodings.

  • Created a process to migrate legacy subscription data, including sensitive card data, to Stripe.

  • Built a user reporting tool leveraging application events so administrators can review users' preferences, options, and changes to this data over time in real time.

  • Built advanced search capabilities for the listed marinas with support for filtering and faceting results, improving the search results speed by over 180% (this was initially created with WP Search).

  • Rebuilt search using Algolia and custom Vue front end, including extensive work with the Google Maps API, displaying searched marinas on maps and allowing search through the map.

Vednode Integrated Services
Vednode Integrated Services
System Administrator
2017 - 2022 (5 years)
Remote
  • Provisioned, designed, and managed several VPS and cloud services across different providers including AWS, Linode, and DigitalOcean.

  • Designed a custom architecture based on the LEMP stack, custom Nginx modules, Redis, and Varnish cache, improving service availability site throughput and reducing server load by over 150%.

  • Migrated a large client site averaging several million views per day from DreamHost to provisioned services based on a self-designed custom architecture, improving the overall site throughput and reducing server load during peak traffic periods.

MTech Communications PLC
MTech Communications PLC
Software Solutions Intern | Software Solutions Developer
2014 - 2016 (2 years)
Lagos, Nigeria
  • Contributed to developing a subscription engine, used in-house to manage SMS content and services and generate reports. This tool also included scheduling capabilities, so content could be pre-filled and scheduled to go out later.

  • Designed and developed a web-based campaign management portal to manage unique SMS campaigns.

  • Created a log parser, storage, and visualization system for in-house SMS logs using the ELK Stack (Elasticsearch, Logstash, Kibana).

  • Developed an automated backup workflow using Logrotate to rotate logfiles on a predetermined schedule and then the Amazon EC2 API tools to copy rotated logs to the AWS S3 service.

  • Contributed to a monitoring solution using Nagios and built custom connectors to monitor and send notifications based on predefined events.

  • Led the Ghana technical team to build a subscription engine platform and USSD application for managing and deploying customers' USSD solutions.

SOAPAmazon Web Services (AWS) PostgreSQLCSSHTMLJavaScriptLogstashElasticsearch NagiosUbuntuCentOSPHPLinuxELK (Elastic Stack) KibanaAWSAWS S3AWS EC2USSD Technology

Showcase

North UX
North UX
  • Rewrote the client's existing CRM integration with WooCommerce by following OOP and WordPress plugin best practices to manage complexity and improve error detection.

  • Successfully managed to reduce error rates and fixed current issues in the CRM integration through effective rewriting.

  • Enhanced the plugin's performance and improved how WooCommerce subscription and order data were stored in the CRM by introducing additional features.

SMS Logs Analysis and Visualization
SMS Logs Analysis and Visualization
  • Utilized the Elastic Stack to construct a real-time log analysis project for SMS Logs Analysis and Visualization

  • Processed and grouped data by MSISDN and added archived data to the system for historical review

  • Implemented an API to query records by various fields, collate totals and perform additional functions

Bandwidth
Bandwidth
  • Developed a responsive WordPress theme for the Bandwidth website, using PSD design files and co-ordinating on Zeplin.io

  • Defined and implemented development workflows for the project using Bitbucket for version control

  • Used Jenkins for deploying merged pull requests from the master branch to WP Engine's Git system

Paystack PHP API Wrapper
Paystack PHP API Wrapper
  • Library provides convenient access to Paystack API

  • Uses predefined services grouped as per Paystack API docs

  • Service classes initialize resources dynamically from API responses

Education

B.Tech Computer Science
B.Tech Computer Science
Bells University of Technology - Nigeria
2008 - 2013 (5 years)