Oliver Dionisio Fernandez

Available to hire

I’m Oliver Dionisio Fernandez, a senior software engineer and AI/ML engineer based in Angeles City. js, and event-driven architecture.

About

I’m Oliver Dionisio Fernandez, a senior software engineer and AI/ML engineer based in Angeles City. I build scalable, cloud-native systems and AI-powered solutions—ranging from microservices backends and full-stack dashboards to intelligent automation workflows using modern tools like FastAPI, React/Next.js, and event-driven architecture.

Over the past decade-plus, I’ve helped teams deliver reliable production platforms by combining strong software engineering with DevOps and observability practices (CI/CD, monitoring, and troubleshooting). I also design LLM and machine learning workflows, inference pipelines, and integrations that turn business requirements into practical, measurable outcomes—improving performance, reducing manual work, and increasing system reliability.

  • 10 years' experience
  • Joined April 2026

Industry experience

  • Software & Internet
  • Professional Services
  • Manufacturing
  • Transportation & Logistics
  • Education
  • Financial Services
  • Computers & Electronics

Work experience· 12 roles

Senior Software Engineer & AI Engineer · American Elite Accountants (US) (Remote)Dec 2025 – May 2026 · 6 mos

Built AI-powered accounting automation workflows using n8n, Make.com, and LLM integrations (OpenAI and Claude). Developed scalable backend services with Python (FastAPI) and Node.js microservices. Created responsive Next.js/React dashboards to monitor workflows and generate business reporting. Integrated REST APIs, webhooks, and SaaS platforms to support enterprise accounting automation, and designed PostgreSQL databases plus ETL pipelines to improve reporting accuracy and operational efficiency. Automated repetitive accounting operations, reducing manual workloads and increasing efficiency by 65%.

Senior Software Engineer & AI Engineer · American Elite Accountants (US)Dec 2025 – Apr 2026 · 5 mos

Developed AI-powered accounting automation workflows using n8n, Make.com, OpenAI, and Claude; built scalable Python FastAPI and Node.js microservices; created responsive Next.js/React dashboards for monitoring and reporting; integrated REST APIs, webhooks, and SaaS platforms; designed PostgreSQL databases and ETL pipelines; automated repetitive accounting operations reducing manual workloads by 65%.

Senior AI & Full Stack Engineer · American Elite Accountants (US)Oct 2025 – Apr 2026 · 7 mos

• Designed and implemented AI-powered automation workflows using make.com and n8n to streamline accounting operations and reduce manual processing workloads. • Developed scalable backend systems using Python (FastAPI) and Node.js to support AI automation applications and enterprise-level workflow orchestration. • Built responsive frontend applications using Next.js and React.js for internal dashboards, workflow monitoring, and AI-driven reporting systems. • Integrated OpenAI and Claude APIs into automation pipelines to enable intelligent document processing, summarization, and financial reporting automation. • Designed and optimized large-scale PostgreSQL database architectures supporting high-volume transactional systems and AI-driven analytics workflows. • Developed AI automation applications that connect multiple business systems using REST APIs, webhooks, and third-party SaaS integrations. • Built ETL pipelines and data processing systems using Python to improve accuracy, consistency, and efficiency of business reporting workflows. • Improved operational efficiency by 65% through end-to-end automation of repetitive accounting and administrative processes using AI systems.

Senior Software Engineer & AI/ML Engineer · Instinctools (Remote)Jan 2023 – Nov 2025 · 2 yrs 11 mos
Senior Software Engineer & AI/ML Engineer · InstinctoolsJan 2023 – Nov 2025 · 2 yrs 11 mos
Software Engineer · Proudcloud (Remote)Nov 2020 – Nov 2022 · 2 yrs 1 mo
Software Engineer · ProudcloudNov 2020 – Nov 2022 · 2 yrs 1 mo
Full Stack Developer · ThinkBIT Solutions (Hybrid)May 2019 – Oct 2020 · 1 yr 6 mos

Education

Bachelor’s Degree in Computer Science · Cebu Technological University (CTU)2011 – 2015
Bachelor's Degree in Computer Science · Cebu Technological University (CTU)2011 – 2015
Bachelor's Degree in Computer Science · Cebu Technological University (CTU)2011 – 2015
Bachelor’s Degree in Computer Science · Cebu Technological University (CTU)2011 – 2015

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