Mark Joseph Zaballero Estareja

[email protected] • +639296293786 • #2228 Malaya St. Balut, Tondo, Manila

PROFESSIONAL SUMMARY

To enhance my career as a Software Engineer by applying my experience in full-stack development, collaborating with cross-functional teams, and continuously expanding my technical and professional skills.

WORK EXPERIENCE

Freelance Full Stack Web Developer

04/2025 - 06/2025

Self Employed

• Designed and developed responsive, user-focused websites and web applications for diverse clients

• Built and customized WordPress themes and plugins, ensuring high performance and SEO optimization

• Developed dynamic front-end interfaces using React, Vue, and Angular integrated with RESTful APIs

• Created secure and efficient Node.js/Express backends with optimized MySQL databases

• Deployed and maintained applications on AWS, implementing CI/CD and version control best practices

• Translated Figma designs into interactive, cross-browser, and mobile-friendly web solutions

• Integrated analytics, payment gateways, and third-party APIs to enhance functionality

Senior Full Stack Developer

02/2024 - 03/2025

Prudential Singapore (One North Consulting Pte Ltd) , Remote

• Led the design and development of applications, ensuring alignment with business goals and user requirements

• Acted as technical lead, mentoring developers and overseeing code quality through reviews

• Designed complex workflows, data models, and distributed systems with seamless front-end and back-end integration

• Developed and optimized REST APIs, integrated third-party services such as payment gateways and insurance data providers

• Built responsive, accessible interfaces using modern frameworks

• Maintained clear documentation for systems, APIs, and workflows

Software Engineer L2

04/2024 - 07/2024

PayMaya/Maya Bank Inc (Project Based)

• Designed, developed, and tested core credit card system features, including transaction processing and billing

• Wrote modular, reusable code for payment authorization, settlement, and reversals

• Performed unit, integration, and end-to-end testing to ensure reliability and compliance with banking standards

• Diagnosed and resolved production issues under tight deadlines

• Collaborated with QA, DevOps, and product teams in Agile/Scrum environments to deliver robust solutions

Packaged App Development Senior Analyst

05/2023 - 12/2023

Accenture Inc.

• Designed, built, and configured applications aligned with business processes and client requirements

• Collaborated with clients through demos and consultations to ensure technical solutions met business needs

• Developed and optimized ETL processes and managed Teradata databases for improved performance

• Implemented CI/CD pipelines and applied DevOps best practices to streamline delivery

• Participated in Agile and Scrum workflows, code reviews, and performance testing

• Created and maintained detailed documentation for databases, configurations, and processes

• Utilized advanced Excel skills for data analysis, reporting, and process optimization

IT Instructor

10/2023 - 12/2023

PHINMA Saint Jude College (Part Time)

• Facilitated lessons using Agile and Scrum principles to enhance learning and collaboration

• Delivered instruction based on approved curricula, developing daily lesson plans, activities, and assessments

• Monitored and documented student attendance, behavior, and academic progress

• Provided academic support and advising to ensure student success

• Maintained up-to-date knowledge in assigned subjects to deliver relevant examples and insights

• Guided students in developing end-of-year projects aligned with the creative coding curriculum

Senior Application Development Analyst

01/2022 - 05/2023

Accenture Inc.

• Developed, tested, and maintained efficient, well-designed code following best software practices

• Collaborated with clients and cross-functional teams to gather requirements and deliver solutions on time

• Designed, built, and optimized applications, databases, and ETL processes

• Created and maintained comprehensive technical and process documentation

• Implemented CI/CD and DevOps practices to improve deployment efficiency

• Mentored new team members and ensured adherence to development standards

• Supported daily operations by applying code fixes and deploying reports, code reviews, and performance testing

Software Developer

10/2021 - 12/2021

Trend Micro (Project Based)

• Implemented and maintained automated tests using Junit

• Contributed to enhancing test automation frameworks for functional and system test cases

• Optimized API response time and reduced latency by implementing caching strategies and asynchronous processing using FastAPI and Golang

• Built dynamic interactive user interface using ReactJS and VueJS, ensuring seamless user experience and responsiveness

Freelance Full Stack Web Developer

01/2017 - 10/2021

AMRI Web Portal Services Corporation - IT Service

• Designed and developed responsive website layouts and user interfaces using HTML, CSS, and standard web practices

• Integrated data from back-end services and databases to enhance functionality

• Built and configured applications aligned with business and technical requirements

• Participated in code reviews and implemented CI/CD and DevOps best practices

• Conducted performance testing and optimized software for efficiency

• Created and maintained comprehensive technical and process documentation

Freelance Android Developer/Game Developer

06/2015 - 10/2021

Self Employed

• Strong knowledge of Android SDK, different versions of Android, and how to deal with different screen sizes

• Designing, building, and maintaining high performance, reusable, and reliable Java codes

EDUCATION

Bachelor of Science in Information Technology

STI College Sta.Mesa , Sta.Mesa, Manila

Timoteo Paez Integrated High School , Younger St. Balut, Tondo, Manila

SKILLS

CERTIFICATIONS

VMWare Spring Certification

09/2023

Accenture Inc.

Business Trip/Internal Project Training

01/2023

Accenture Singapore