Résumé

Jeff Martin Jr Abayon

Full-Stack Engineer / Software Engineer · Calgary, Alberta

Professional summary

Full-stack engineer experienced in maintaining production SaaS and building enterprise platforms across cyber readiness, insurance claims, industrial engineering, healthcare, and government operations. Currently contributing to a production cyber-readiness platform and building Turnover Ledger, a governed engineering-to-turnover readiness product.

Core skills

Frontend: React, Next.js, TypeScript, server rendering, data-driven workflows, form validation, accessible UI
Backend & APIs: Node.js, Express, FastAPI, .NET, Spring Boot, REST, GraphQL, authentication, RBAC
Data: PostgreSQL, SQL Server, MySQL, MongoDB, schema design, indexing, reporting, JSONB, RLS
Infrastructure: GitHub Actions, Docker, AWS, Terraform, environment-based deployments, release verification
Architecture: Multi-tenant SaaS, governed workflows, distributed services, auditability, concurrency, system integration

Professional experience

Full-Stack Engineer

Readiness AI · Calgary, Alberta

May 2026 - Present

Delivered two feature enhancements and seven defect fixes across five technical areas since joining.
Converted six product and business requirements into improvements to the control-evidence review workflow, reducing the process from 10 steps to seven and average completion time from approximately 18 minutes to 12 minutes.
Resolved seven defects across application logic, APIs, databases, integrations, and user interfaces, reducing repeat incidents by 20% and average resolution time by 25%.
Refactored four frequently modified modules and added 16 automated tests, increasing test coverage from 60% to 73% and reducing regression defects by 25%.
Supported four successful production releases with no critical rollbacks or production incidents attributable to my changes.
Worked with a four-person product and engineering team to clarify 10 requirements and deliver more than 90% of committed work on schedule.

Full-Stack Engineer (Contract)

Calnetic · Calgary, Alberta

December 2025 - February 2026

Delivered 22 production enhancements and 12 defect fixes during a three-month engagement.
Built improvements across React and Next.js interfaces, Node.js APIs, and Supabase and PostgreSQL services, improving three customer workflows and reducing one process from nine steps to seven.
Improved authentication, RBAC, and tenant isolation across four modules, resolving three access-control and data-scoping issues.
Designed and integrated 16 API endpoints across three services, eliminating four recurring integration failure patterns.
Resolved 26 production and preproduction issues, including 12 confirmed defects, and reduced average resolution time by 25%.
Added 48 automated tests and three CI/CD validations, supporting six production releases with no critical rollbacks or production incidents attributable to my changes.
Worked with an eight-person engineering and product team to deliver 14 of 15 committed items on schedule, a 93% delivery rate.

Senior Software Developer

Verum Integra, Inc. · Parañaque City, Philippines

January 2020 - December 2021

Designed and maintained REST APIs supporting 12 core business workflows, reducing manual processing time by 30%.
Optimized SQL schemas, indexes, and reporting queries across eight high-use processes, reducing average report generation time from 10 seconds to four seconds.
Automated build and deployment activities through CI/CD, reducing the release cycle from five days to two days and deployment-related defects by 35%.
Worked with product and QA teams to deliver 13 of 14 planned releases and major features on schedule, a 93% delivery rate.

Software Developer / Data Architect

Department of Transportation - Philippines · Republic of the Philippines

April 2018 - December 2019

Consolidated 18 separate data sources and recurring reports into shared workflows, reducing manual reconciliation time from eight hours to three hours.
Developed 20 modules, reports, and automated workflows that replaced spreadsheet-based and manually coordinated processes.
Standardized 15 key datasets and report types, reducing duplicate or inconsistent records by 40%.
Supported more than 50 internal users across five offices through centralized operational and reporting access.

Selected founder and portfolio work

Turnover Ledger — Six connected engineering and turnover areas, eight governed decision stages, three controlled outcomes, and a configurable datasheet engine with more than 100 dynamic fields.

Plant 3D Diagnostic — Six review workspaces, seven bounded reconciliation queues, a five-step evidence path, and zero source write paths.

LCCAP Workspace — Four technology layers, two delivered phases, six core planning functions, eight Phase 2 capabilities, and seven enterprise controls.

CampaignOps PH — Private FastAPI, PostgreSQL, Celery, Redis, and Next.js campaign-operations SaaS with privacy-aware schema constraints.