Liandre John | Senior Backend Developer & Platform Engineer

About Me

I am a skilled and passionate Senior Backend Developer with expertise in Java, Spring Boot, and cloud technologies like AWS and Azure. I have led projects to streamline data exchange, integrate systems, and build scalable, secure solutions for global platforms. With a strong focus on clean, efficient coding and problem-solving, I’ve improved system reliability by enhancing platform capabilities and reducing manual interventions. Beyond my technical abilities, I enjoy mentoring developers and collaborating across teams to ensure high-quality, innovative solutions. My dedication to excellence, continuous learning, and teamwork defines my approach to every project.

Contact Details

Liandre John de Castro
QW 1104 The Residences at Commonwealth Quezon City, Metro Manila 1119 PH
+63 920 823 5297
liandrejohn88@gmail.com

Let's Connect

Services

What Can I Do For You?

Here are some of the services that I offer when it comes to web development and business.

Backend Development

Building scalable, robust back-end systems for your business. Ensuring seamless integration and optimal application performance.

API Integration

Designing secure, efficient APIs to connect applications and services, enabling smooth and reliable platform communication.

Cloud Architecture

Creating scalable, secure, and cost-effective cloud solutions with AWS, ensuring performance and reliability for your systems.

Career

Crescendo Collective

Senior Backend Developer ∙ June 2021 - Present

As a Senior Backend Developer, I have played a pivotal role in driving innovation and delivering cutting-edge solutions for global platforms. My expertise in Java, Spring Boot, and AWS has enabled me to develop scalable systems that streamline data exchange, secure sensitive information, and enhance platform reliability. I've led the development of a Transformation Layer that empowered over 100 websites, designed authentication systems for 100,000+ users, and created platform-agnostic APIs to unify data seamlessly across systems.

Beyond delivering high-quality solutions, I'm passionate about mentoring developers, fostering team collaboration, and implementing best practices to ensure success. My work consistently prioritizes scalability, efficiency, and business value, helping businesses reduce costs, improve user engagement, and stay ahead of industry demands.

Accenture

Software Engineer Analyst ∙ March 2020 - June 2021

During my tenure at Accenture, I honed my skills in building enterprise-grade solutions for complex business challenges. I implemented an Engineering Data Management System that reduced client costs by 40%, developed 50+ microservices, and automated deployment pipelines to boost delivery speed by 20%. My commitment to clean coding, extensive testing, and innovation ensured reliable, high-performance applications that drove measurable results.

As a contributor to large-scale projects, I collaborated with cross-functional teams to meet aggressive timelines while exceeding client expectations. These experiences helped me refine my ability to combine technical expertise with a deep understanding of business objectives.

Education

University of the Philippines Diliman

B.S. in Electrical Engineering, cum laude ∙ August 2015 - January 2020

Graduated with honors while developing a strong foundation in analytical problem-solving, circuit design, and engineering principles. Key accomplishments include excelling in advanced coursework and contributing to collaborative research projects.