Senior Software Engineer

Allejo Chris G. Velarde

I'm a senior software engineer with more than 15 years of experience building and scaling web and mobile products across healthcare, travel, finance, and enterprise operations. My background spans backend architecture and API development — Python/Django, PHP/Symfony, Java/Kotlin, Ruby on Rails, REST and GraphQL — alongside cloud infrastructure on AWS and hands-on technical leadership. I enjoy taking systems from early architecture through to secure, high-performance production delivery, working closely with cross-functional teams along the way.

Experience

Chromedia Inc.

Senior Lead Developer

Feb 2026–Present

Biomedical market-intelligence SaaS platform (healthcare/life-sciences)

  • Develop features, resolve defects, and lead legacy data migration for a SaaS platform using Spring Boot, Angular, and Django-based ETL/background jobs. Maintain feed ingestion, legacy migration, account, and permissions systems supporting entitlement-based access and campaign-delivery pipelines.
AngularJavaSpring BootPythonDjango

Senior Lead Developer

June 2025–Feb 2026

Enterprise web application platform

  • Continued platform engineering work on an Angular/Java/Spring Boot stack.
AngularJavaSpring Boot

Senior Full Stack Engineer

Present

Internal work-tracking and invoicing platform

  • Develop features, optimize performance, and resolve production issues on an internal operations platform used for work tracking and billing. Maintain the API and front-end application supporting reliable, scalable operations.
DjangoNext.jsRedisPostgreSQLAWS

Lead Developer

1 year

HIPAA-compliant patient engagement platform

  • Led multiple subsystems for a platform supporting benefit and provider transparency and secure access to care concierges. Implemented configurable forms, workflows, and background processing for performance, scalability, and flexibility.
SymfonyReactPythonAWS LambdaAWS

Senior Backend Engineer

3 years

Cruise booking platform

  • Developed optimized backend APIs and security checks for a booking platform handling a high volume of daily requests and reservation transactions.
KotlinNext.jsPostgreSQLPythonAWS

Senior Frontend Engineer

1 year

Fantasy sports mobile application

  • Developed and optimized a fantasy-sports mobile app, improving load performance, responsiveness, and in-app interactions.
Node.jsReact Native

Senior Frontend Engineer

1 year

Consumer mobile finance application

  • Built a mobile finance application from the ground up, integrated a third-party financial data API, and used a cloud data layer as an intermediary with added security controls.
IonicAngularFirebase

Lead Developer

2 years

Social platform for beauty and grooming professionals

  • Designed and built a social platform including native iOS and Android apps and a Ruby on Rails administration portal. Implemented background job processing to improve responsiveness and scalable data access.
Ruby on RailsReactSwiftJavaRedisSidekiqAWS

Lead Developer

1 year

Custom evaluation and assessment platform

  • Led feature expansion for an evaluation platform with configurable rubrics and reporting, addressing complex queries and large datasets to improve performance and usability.
PHPjQueryMySQLAWS

Lead Developer

1 year

Queue management platform for clinics

  • Developed a web and mobile queue management platform and led adoption of real-time updates for improved performance.
SymfonyBackbone.jsApache CordovaMySQLRedisAWS

Lead Developer

4 years

Healthcare services platform (ground-up build)

  • Built a healthcare platform from the ground up, leading architecture, application performance, and cloud deployment. Supported the platform's transition toward stronger HIPAA-aligned compliance through a later rebrand.
SymfonyjQueryMySQLElasticsearchMemcachedAWS

Freelance

Senior Full Stack Developer

2 years

Field job-tracking platform

  • Developed a mobile-responsive job tracking platform with GPS tracking, completion evidence, and background processing for improved efficiency and scalability.
PHPjQueryBootstrapMySQL

Senior Full Stack Developer

1 year

Patent marketplace directory platform

  • Developed a patent marketplace directory with a custom content management system and administration panel, focused on scalable, efficient management and ease of use.
CakePHPPHPjQueryBootstrapMySQL

Early-stage travel-tech company (Philippines)

Senior Full Stack Developer

1 year

Early social networking platform for international travelers

  • Built features for an early social networking platform connecting international travelers through journals and travel tips, using a custom framework with relational and document databases.
PHPjQueryMySQLMongoDBMemcached

Senior Full Stack Developer

2 years

International travel/study/work opportunities platform

  • Contributed to backend APIs and the front-end platform connecting users with international travel, study, work, and volunteer opportunities. Developed custom libraries for secure transaction handling and request validation.
PHPjQueryMySQLMemcached

Skills

Languages

  • Python
  • PHP
  • Java
  • Kotlin
  • JavaScript
  • Ruby
  • Swift

Backend Frameworks

  • Django
  • Symfony
  • Laravel
  • CakePHP
  • Ruby on Rails
  • Spring
  • Spring Boot
  • Node.js

Frontend Frameworks

  • React
  • Next.js
  • Angular
  • Ionic
  • Backbone.js
  • jQuery
  • Bootstrap
  • Tailwind CSS

Mobile Development

  • Swift
  • React Native
  • Ionic
  • Apache Cordova

API Architecture

  • REST
  • GraphQL

Databases & Caching

  • PostgreSQL
  • MySQL
  • MariaDB
  • MongoDB
  • Redis
  • Elasticsearch
  • Memcached

Cloud (AWS)

  • EC2
  • S3
  • RDS
  • Elastic Beanstalk
  • Lambda
  • SQS
  • SNS

Platforms & Servers

  • Linux
  • Windows
  • macOS
  • Apache
  • Nginx

Tools

  • Git
  • Jira
  • Slack
  • Figma
  • Visual Studio Code
  • Xcode
  • Android Studio
  • JetBrains IDEs

Methodology

  • Agile
  • Scrum

Projects

Biomedical Market-Intelligence Platform

A SaaS platform delivering market intelligence for the healthcare and life-sciences industry, including feed ingestion, legacy data migration, and entitlement-based account/permissions systems.

  • Angular
  • Java
  • Spring Boot
  • Python
  • Django

HIPAA-Compliant Patient Engagement Platform

A healthcare platform supporting benefit and provider transparency with secure, configurable workflows for patients and care concierges, built for performance and scalability.

  • Symfony
  • React
  • Python
  • AWS Lambda
  • AWS

Cruise Booking Platform

Backend APIs and security hardening for a high-traffic booking platform processing reservation transactions at scale, with a focus on performance under load.

  • Kotlin
  • Next.js
  • PostgreSQL
  • Python
  • AWS

Consumer Mobile Finance App

A mobile finance application built from the ground up, integrating third-party financial data services behind a secured cloud data layer.

  • Ionic
  • Angular
  • Firebase

Social Platform for Beauty & Grooming Professionals

A social platform pairing native iOS and Android apps with a Ruby on Rails administration portal, backed by background job processing for responsive, scalable data access.

  • Ruby on Rails
  • React
  • Swift
  • Java
  • Redis
  • Sidekiq
  • AWS

Fantasy Sports Mobile App

A fantasy-sports mobile application optimized for load performance, responsiveness, and rich in-app interactions.

  • Node.js
  • React Native

Education

  • Master's in Information Technology (Completed Academic Requirements)

    Eastern Visayas State University

    2023

  • Computer Science

    University of the Philippines Tacloban

    2009

Contact

Feel free to reach out via email or connect on LinkedIn.