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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.…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.

Oliver Dionisio Fernandez

Full Stack Developer, AI Engineer, Web Developer, +6

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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.…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.

Available to hire

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.

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Language

English

Fluent

Work Experience

Senior Software Engineer & AI Engineer at American Elite Accountants (US) (Remote)

December 1, 2025 - May 1, 2026

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 at American Elite Accountants (US)

December 1, 2025 - April 30, 2026

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 at American Elite Accountants (US)

October 31, 2025 - April 29, 2026

• 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 at Instinctools (Remote)

January 1, 2023 - November 1, 2025

Designed and implemented scalable cloud-native microservices architectures for enterprise digital transformation and AI-driven product development across distributed environments. Built high-performance backend services using Go and Python for asset discovery, monitoring, and operational intelligence. Developed REST APIs and service communication layers using FastAPI and OpenAPI specifications. Optimized PostgreSQL schemas (indexing and query tuning) for an 18% production query-performance improvement, added Redis caching to reduce latency by 21%, and used Docker/Kubernetes for scalable and highly available deployments. Architected AWS infrastructure (ECS, ECR, S3, RDS, IAM, CloudWatch, ElastiCache) and automated provisioning with CloudFormation. Built CI/CD pipelines with GitHub Actions and implemented observability (logs, metrics, tracing, alerting). Enforced RBAC/IAM security, implemented async processing with Celery/Redis queues (17% throughput improvement), and improved production

Senior Software Engineer & AI/ML Engineer at Instinctools

January 1, 2023 - November 1, 2025

Designed and implemented scalable cloud-native microservices architectures supporting enterprise digital transformation and AI-driven product development across distributed environments. Built high-performance backend services in Golang and Python to support large-scale asset discovery, monitoring, and operational intelligence systems. Implemented RESTful APIs using FastAPI and OpenAPI, optimized PostgreSQL schemas with indexing and query tuning, added Redis caching to reduce latency, and containerized applications with Docker and Kubernetes for reliable production deployments on AWS (ECS, ECR, S3, RDS, IAM, CloudWatch, ElastiCache). Automated infrastructure with CloudFormation and built CI/CD pipelines with GitHub Actions. Established observability, RBAC/IAM security, and asynchronous processing with Celery and Redis to improve throughput. Collaborated with product managers to translate business requirements into AI-enabled solutions and supported LLM workflows and intelligent automat

Software Engineer at Proudcloud (Remote)

November 1, 2020 - November 1, 2022

Developed scalable enterprise applications using Agile practices for startup and enterprise digital transformation across multiple industries. Built event-driven microservices for logistics and operational workflows, reducing processing time by 18%. Designed backend systems with C# and .NET for production planning and optimization, implemented CI/CD pipelines using Azure DevOps, and collaborated with cross-functional teams to deliver maintainable solutions. Developed data pipelines and analytics for real-time insights and enterprise reporting. Applied constraint optimization techniques improving resource allocation efficiency by 24%, performed root-cause analysis to resolve high-load bottlenecks, and built observability dashboards to improve visibility and incident response. Integrated third-party APIs supporting logistics, shipping, and workflow automation.

Software Engineer at Proudcloud

November 1, 2020 - November 1, 2022

Developed scalable enterprise applications using Agile methodologies across multiple industries. Built event-driven microservices for logistics and operational workflows; backend systems in C#/.NET supporting production planning and optimization. Implemented CI/CD pipelines with Azure DevOps, designed data pipelines for real-time insights and enterprise reporting, and applied constraint optimization to improve resource allocation. Built observability dashboards and integrated third-party APIs to support logistics and enterprise workflow automation.

Full Stack Developer at ThinkBIT Solutions (Hybrid)

May 1, 2019 - October 1, 2020

Built secure, high-performance web applications aligned with ISO standards and enterprise-grade compliance requirements. Engineered backend systems and ETL pipelines for financial transaction processing, improving latency by 12%. Created scalable APIs and microservices for real-time data processing and analytics. Implemented monitoring and alerting to reduce downtime by 8% via proactive incident detection and health tracking. Collaborated with cross-functional teams under Agile to deliver solutions for international clients.

Full Stack Developer at ThinkBIT Solutions

May 1, 2019 - October 1, 2020

Developed secure, high-performance web applications aligned with ISO standards and enterprise compliance for global clients. Engineered backend systems and ETL pipelines for financial transaction processing; built scalable APIs and microservices enabling real-time data processing and analytics. Implemented monitoring and alerting to reduce downtime and collaborated with cross-functional teams in Agile environments to deliver scalable and maintainable software solutions.

Full Stack Developer at Arcanys (Hybrid)

April 1, 2015 - April 1, 2019

Developed large-scale machine learning systems and recommendation engines using distributed computing frameworks. Built high-performance C++ components to optimize inference pipelines, improving ML workload performance by 22%. Trained predictive analytics and personalization models with TensorFlow, PyTorch, and Spark MLlib. Implemented distributed data pipelines with Hadoop and Spark for petabyte-scale processing and real-time analytics. Delivered NLP and anomaly detection to improve user engagement and system intelligence. Also developed backend web applications with PHP/Laravel, designed RESTful APIs, integrated third-party services, and optimized Laravel performance with query tuning and caching for high-traffic systems.

Full Stack Developer & AI / ML Engineer at Arcanys

April 1, 2015 - April 1, 2019

Developed large-scale machine learning systems and recommendation engines using distributed computing frameworks. Built high-performance C++ components optimizing inference pipelines and trained models using TensorFlow, PyTorch, and Spark MLlib for predictive analytics and personalization. Developed distributed data pipelines with Hadoop and Spark for petabyte-scale data processing and real-time analytics, implemented NLP and anomaly detection algorithms, and built backend web applications using PHP and Laravel with RESTful API integrations.

Full Stack Developer at Arcanys

March 31, 2015 - April 29, 2019

Developed large-scale ML systems and recommendation engines; built high-performance C++ components to optimize inference; designed and trained ML models using TensorFlow, PyTorch, and Spark MLlib; developed distributed data pipelines with Hadoop and Spark for petabyte-scale, real-time analytics; implemented NLP and anomaly detection; built backend in PHP/Laravel; designed RESTful APIs and performed API integration; optimized Laravel performance with database tuning and caching.