AUG – DEC 2023
Web Developer Intern
Syntactics Inc.
Maintained and debugged client WordPress sites, including a mail-provider failure that was quietly breaking contact forms. Built the frontend for Paw-Tah, an internal app concept.
Lead Software Engineer at Sageware Solutions
Product-minded AI Engineering · Cat dad of two

Product first. Engineered to last.
I'm a product-minded lead engineer: I run discovery, make the product calls, and set the architecture, with applied AI part of how I work every day. I borrowed my philosophy from the cockpit: stay ahead of the aircraft. Anticipate the next state before you arrive at it; never just react.
From intern to lead engineer.
Maintained and debugged client WordPress sites, including a mail-provider failure that was quietly breaking contact forms. Built the frontend for Paw-Tah, an internal app concept.
Lead engineer, architect and project manager on XU VMS and the PIKIFI information system.

Started on Laravel, Filament and PostgreSQL delivery; grew into authentication, API design, data-flow reliability and AI integration.

Helped architect and build a decision engine that scores car rental applications against scorecards managed in the system itself.
Secondsto originate, down from weeks or months
Found only 14 of 33 foreign keys. Cleaned orphans, rebuilt the schema and restored clean data while a partner company kept integrating.
33/33keys restored, zero data loss
Built per-dimension evaluation workflows and tuned prompts against them. A new domain and a new discipline, learned on the job.
84%food quantification accuracy

AI scoring, analysis and honeypot checks for exam submissions, grounded by a curated context-pack so grading stays consistent.
Owned the warranty and post-launch phase: weekly technical direction, triage, releases and client communication, knowing when to push back and when to agree.
A poisoned job queue was injecting scripts into responses. Contained it, rotated every credential, then hardened the app, database and server layers.
Led discovery on site in Baguio, from Q&A and live prototypes to working in their departments, and got the requirements signed. Then set the architecture and weekly sprints, and proved the engine against their production loans.
95%of testable production loans matched



I lead projects from the first client meeting to handover: discovery, requirements, architecture, weekly sprint direction, and coaching the engineers I work with. I work product first, so we build what users actually need, with the architecture and UX to match, not just more of it.


What colleagues say about working with me.
Mark served as the software lead on one of the projects I was assigned to, and it remains one of the best collaborative experiences I’ve had. As someone working in QA, I especially appreciated how he approached bugs. Whenever I raised an issue, he treated it as something to understand rather than simply something to fix, uncovering deeper edge cases in related features that made more complete fixes.
Great team member and can effectively communicate and get along with other members to make sure goals are met. He has excellent work ethic which is shown through leading projects and continous self-learn in his work. Outside of work, he can be a great and reliable person, overall. A testament to his consistentency and integrity
I had the privilege of working alongside a brilliant individual who consistently brings intelligence and clarity to the table. During our time working together, I was impressed by his strong leadership skills and exceptional time management. He is a proactive, fast learner who is always eager to expand his knowledge. Beyond his technical abilities, Mark is highly articulate and communicates complex ideas with ease. I have no doubt that he will be a valuable asset to any organization he joins.
Mark Christopher demonstrates a well-rounded level of professional excellence through strong technical proficiency and adaptability. He consistently delivers high-quality results, even in challenging or high-pressure environments. Easy to work with and collaborative in approach, he brings a steady and dependable presence to team settings. He has proven experience working across diverse environments as a Full Stack Developer, with hands-on expertise in Laravel, Filament, FastAPI, and Pydantic AI.
I’ve worked with Mark before, and I can confidently say he knows how to steer the ship. His leadership is exceptional, and his skills are always at the top of his game. I can fully vouch for him.
He's quick to adapt in any situation, and is a fast problem solver. A consistent trait of his is that he's always looking to learn new things and works hard to master them. Every output he submits is bound to be outstanding in anyway.
Mark is one of the best colleagues you could ask for, excelling in both knowledge and leadership. While we haven’t worked on many projects together, he is someone I can always rely on for guidance and practical solutions. Mark is a true jack-of-all-trades and master of all versatile, highly skilled, and deeply committed to everything he does. His ability to adapt and take ownership makes him an invaluable teammate.
Calm and very adaptive under pressure. He solves a lot of difficult problems reliably because of his proactive mindset, and experience. Pagdating sa memes proactive mindset and experience din. Certified professional on both fronts.
Mark/Cap is the kind of friend and teammate you can genuinely rely on. Mark/Cap is always calm under pressure, accountable with tasks, and always willing to learn and improve. They uplift the people around them through consistent support, a respectful attitude, and work you can trust to be done well.
Mark is one of the easiest people to work with. He’s helpful, patient, and always does his best to fix any issue that comes his way. He’s super approachable, fun to talk to, and gets along well with everyone on the team. You can always count on him to stay calm, stay positive, and keep things moving.
Mark is one of the most talented and humble people I know. He is solution oriented and would always try his best to solve any problem he faces. Easy to converse with and is good with people 👍
2 words. Hard. Carry. Works himself to the bone but also parties hard when the work is over. You can trust him to get the job done.
Hardworking, You'll be sure to get quality outputs from him.
Mark served as the software lead on one of the projects I was assigned to, and it remains one of the best collaborative experiences I’ve had. As someone working in QA, I especially appreciated how he approached bugs. Whenever I raised an issue, he treated it as something to understand rather than simply something to fix, uncovering deeper edge cases in related features that made more complete fixes.
Great team member and can effectively communicate and get along with other members to make sure goals are met. He has excellent work ethic which is shown through leading projects and continous self-learn in his work. Outside of work, he can be a great and reliable person, overall. A testament to his consistentency and integrity
I had the privilege of working alongside a brilliant individual who consistently brings intelligence and clarity to the table. During our time working together, I was impressed by his strong leadership skills and exceptional time management. He is a proactive, fast learner who is always eager to expand his knowledge. Beyond his technical abilities, Mark is highly articulate and communicates complex ideas with ease. I have no doubt that he will be a valuable asset to any organization he joins.
Mark Christopher demonstrates a well-rounded level of professional excellence through strong technical proficiency and adaptability. He consistently delivers high-quality results, even in challenging or high-pressure environments. Easy to work with and collaborative in approach, he brings a steady and dependable presence to team settings. He has proven experience working across diverse environments as a Full Stack Developer, with hands-on expertise in Laravel, Filament, FastAPI, and Pydantic AI.
I’ve worked with Mark before, and I can confidently say he knows how to steer the ship. His leadership is exceptional, and his skills are always at the top of his game. I can fully vouch for him.
He's quick to adapt in any situation, and is a fast problem solver. A consistent trait of his is that he's always looking to learn new things and works hard to master them. Every output he submits is bound to be outstanding in anyway.
Mark is one of the best colleagues you could ask for, excelling in both knowledge and leadership. While we haven’t worked on many projects together, he is someone I can always rely on for guidance and practical solutions. Mark is a true jack-of-all-trades and master of all versatile, highly skilled, and deeply committed to everything he does. His ability to adapt and take ownership makes him an invaluable teammate.
Calm and very adaptive under pressure. He solves a lot of difficult problems reliably because of his proactive mindset, and experience. Pagdating sa memes proactive mindset and experience din. Certified professional on both fronts.
Mark/Cap is the kind of friend and teammate you can genuinely rely on. Mark/Cap is always calm under pressure, accountable with tasks, and always willing to learn and improve. They uplift the people around them through consistent support, a respectful attitude, and work you can trust to be done well.
Mark is one of the easiest people to work with. He’s helpful, patient, and always does his best to fix any issue that comes his way. He’s super approachable, fun to talk to, and gets along well with everyone on the team. You can always count on him to stay calm, stay positive, and keep things moving.
Mark is one of the most talented and humble people I know. He is solution oriented and would always try his best to solve any problem he faces. Easy to converse with and is good with people 👍
2 words. Hard. Carry. Works himself to the bone but also parties hard when the work is over. You can trust him to get the job done.
Hardworking, You'll be sure to get quality outputs from him.
Selected builds, one for each star of the Big Dipper.
An AI-powered health and fitness companion: snap a photo of a meal for calories and a macronutrient breakdown, plus meal planning and progress tracking.

Ursa Major, gnomonic projection at 12ʰ24ᵐ +56°. J2000 positions; star colour from spectral class.
Selected builds, one for each star of the Big Dipper.

An AI-powered health and fitness companion: snap a photo of a meal for calories and a macronutrient breakdown, plus meal planning and progress tracking.

Built in a single night after signs of tampering at home: an old phone as the camera, YOLOv8 person detection, and alerts with a photo and clip via Discord and WhatsApp.

A landing page for a fictional game studio with its own realtime social feed: posts, likes and comment threads that update live. Built solo, end to end.

Highlight a section of messy notes and Lynx summarises, organises and enhances it, keeping the key information and losing the noise.

Visitor management for Xavier University that streamlines the visitor experience and bolsters campus security. Thesis project; I was the lead engineer and architect.

A personal information system for Philippine Island Kids International Foundation, Inc. that streamlines how the organisation manages its data.

This portfolio's AI co-pilot: a RAG chatbot over pgvector and OpenAI embeddings that answers questions about me, hardened with rate limits and prompt-injection checks.
Got a role or a project in mind? Tell me about it. My cats will get right on it.