Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

Hi, I’m Mark Vincent de los Santos Buison. I’m a results-driven IT professional with extensive experience in software and system development as well as L2 application support. I enjoy building robust backend services with Python and crafting intuitive front-end interfaces using React, HTML, and CSS. I’m passionate about turning complex requirements into scalable, reliable solutions that improve efficiency across departments. I thrive in collaborative environments, especially in healthcare, financial services, and retail IT contexts. I’m committed to continuous learning, process optimization, and delivering IT operations that teams can depend on. I’m always eager to adopt new technologies and best practices to drive impact and value for the organizations I support.…Hi, I’m Mark Vincent de los Santos Buison. I’m a results-driven IT professional with extensive experience in software and system development as well as L2 application support. I enjoy building robust backend services with Python and crafting intuitive front-end interfaces using React, HTML, and CSS. I’m passionate about turning complex requirements into scalable, reliable solutions that improve efficiency across departments. I thrive in collaborative environments, especially in healthcare, financial services, and retail IT contexts. I’m committed to continuous learning, process optimization, and delivering IT operations that teams can depend on. I’m always eager to adopt new technologies and best practices to drive impact and value for the organizations I support.

Mark Vincent de los Santos Buison

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





Hi, I’m Mark Vincent de los Santos Buison. I’m a results-driven IT professional with extensive experience in software and system development as well as L2 application support. I enjoy building robust backend services with Python and crafting intuitive front-end interfaces using React, HTML, and CSS. I’m passionate about turning complex requirements into scalable, reliable solutions that improve efficiency across departments. I thrive in collaborative environments, especially in healthcare, financial services, and retail IT contexts. I’m committed to continuous learning, process optimization, and delivering IT operations that teams can depend on. I’m always eager to adopt new technologies and best practices to drive impact and value for the organizations I support.…Hi, I’m Mark Vincent de los Santos Buison. I’m a results-driven IT professional with extensive experience in software and system development as well as L2 application support. I enjoy building robust backend services with Python and crafting intuitive front-end interfaces using React, HTML, and CSS. I’m passionate about turning complex requirements into scalable, reliable solutions that improve efficiency across departments. I thrive in collaborative environments, especially in healthcare, financial services, and retail IT contexts. I’m committed to continuous learning, process optimization, and delivering IT operations that teams can depend on. I’m always eager to adopt new technologies and best practices to drive impact and value for the organizations I support.

Available to hire

Hi, I’m Mark Vincent de los Santos Buison. I’m a results-driven IT professional with extensive experience in software and system development as well as L2 application support. I enjoy building robust backend services with Python and crafting intuitive front-end interfaces using React, HTML, and CSS. I’m passionate about turning complex requirements into scalable, reliable solutions that improve efficiency across departments.

I thrive in collaborative environments, especially in healthcare, financial services, and retail IT contexts. I’m committed to continuous learning, process optimization, and delivering IT operations that teams can depend on. I’m always eager to adopt new technologies and best practices to drive impact and value for the organizations I support.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Work Experience

Senior Python Developer / Fullstack Developer at Unity Digital Infrastructure Inc.

December 2, 2025 - December 2, 2025

Developed and maintained multiple internal systems to support organizational operations and automation requests across departments. Designed and implemented web-based administrative portals with full admin control access, ensuring secure, efficient, and scalable management of internal data and workflows. Developed backend services using Python (Flask) and frontend interfaces using React.js, HTML, and CSS. Created and optimized SQL queries to support data reporting, analytics, and system improvement initiatives. Managed version control and deployment workflows via GitHub and AWS services.

L2 Application Support / Support Development at Tata Consultancy Services

May 16, 2025 - May 16, 2025

Provided Level 2 (L2) application support for core financial systems under the TCS Bancs platform for clients including Philippine Depository & Trust Corp. (PDTC) and Morgan Stanley. Developed Python automation scripts and internal tools to streamline monitoring, reporting, and data handling, reducing manual workload and improving accuracy. Monitored and maintained batch jobs, system performance, and application health using Sockeye, iAlert, ServiceNow, PTracker, and Batchmond. Performed SQL-based data validation, reporting, and system optimization to support financial transactions and improve system reliability. Conducted Unix/Linux troubleshooting for database and batch-related issues to ensure stable system operations. Collaborated with business, infrastructure, and development teams to resolve incidents, implement fixes, and ensure service continuity. Managed user access, handled backend ad hoc requests, and provided weekend on-call support on a rotational basis.

L1 Application Support / I.T System Analyst at Wipro Philippines Inc.

August 16, 2022 - August 16, 2022

Provided remote IT support for hospitals, clinics, and doctors’ offices. Troubleshot Citrix, Cisco AnyConnect, Zscaler, VMWare issues. Managed incidents using ServiceNow Ticketing Tool. Assisted in software installations and system configurations. Assigned I.T Analyst for Quest Diagnostics - Healthcare IT Support.

L2 Application Support / Frontend Dev Ops at Ecashpay Asia Inc.

July 22, 2021 - July 22, 2021

Debugged and maintained frontend code using VSCode, JavaScript, React.js, PHP, Bootstrap, and jQuery. Developed responsive UI features, interactive button functions, and third-party transaction modules integrated with PHP-based systems. Managed backend data operations using SQLYog Server, optimized database queries, and implemented RESTful API integrations. Provided Linux and network-level support, assisted in CI/CD pipeline configuration, and contributed to system architecture enhancements. Delivered Level 2 Support and Frontend Development for Unified Products & Services, ensuring smooth production deployments and rapid issue resolution.

L1 Application Support / Tech Support at Radiant Global HD. Inc.

May 18, 2020 - May 18, 2020

Provided remote software, hardware, and network support for enterprise retail systems. Troubleshot issues using Lubuntu (Unix/Linux-based OS), MySQL commands, and various system administration tools. Performed remote password resets, configuration updates, and maintenance for international retail clients (ColdStorage, Giant Hypermarket, 7-Eleven). Utilized Dairy Farm Remedy Ticketing Tools to track, escalate, and resolve technical incidents efficiently. Acted as a primary IT representative supporting global retail branches across multiple time zones.

Freelancer Java Developer at ADLRSB Exemport Inc.

May 7, 2018 - May 7, 2018

Designed and developed a custom Management System using Java (NetBeans IDE) to automate internal company operations and reporting. Configured and maintained SQL Server, including database schemas, stored procedures, and user access control. Set up and optimized local web server environments using XAMPP and WAMP Server for testing and deployment. Built user interfaces and backend logic for core modules such as employee records, inventory management, and transaction logging. Conducted end-to-end testing, debugging, and performance tuning to ensure a stable and responsive system. Worked independently with minimal supervision, coordinating directly with management for requirements gathering and feature validation. Successfully deployed a fully functional management system that improved daily operations and reduced manual encoding time. Established standardized server configuration and backup practices for small-scale deployments.

System Tester Analyst at Personal Collection Direct Selling, Inc.

January 12, 2018 - January 12, 2018

Tested and assisted employees with newly deployed systems. Guided and trained employees on the proper use of new applications and system features to ensure smooth adoption. Collaborated with developers and IT support teams to identify, report, and resolve system bugs and user experience issues. Assisted in system rollout, user acceptance testing (UAT), and deployment verification processes.