10/17/2026 updated
100 % available
Senior Software Engineer | Python, Node.js, React | Start-up, SaaS, Fintech, E-commerce
San Pedro, Philippines
Only remote
Bachelor of Science in Computer ScienceAbout me
• Senior Software Engineer with 10+ years of experience • Strong background in API design, distributed systems, cloud-native development across AWS and Azure, and AI-powered applications. • Experienced in collaborating with distributed engineering teams across the U.S. and Europe
AI AgentsAzure DevOpsApplication Programming Interfaces (APIs)Amazon Web ServicesSoftware as a ServiceDevOpsDjangoPython (Programming Language)PostgreSQLNode.jsSwaggerNext.jsTypeScriptReact.jsFlask
Python Backend Development
Expertise in building scalable backend services and APIs using Python, FastAPI, Django, Django REST Framework, and Flask. Proven track record of engineering high-performance systems supporting millions of transactions and thousands of concurrent users.
Cloud & DevOps Engineering
Extensive experience with AWS and Azure cloud platforms, including ECS, EKS, Lambda, SQS/SNS, and Azure Service Bus. Proficiency in containerization with Docker, orchestration with Kubernetes, infrastructure-as-code with Terraform, and CI/CD automation using GitHub Actions and Jenkins.
Distributed Systems & Event-Driven Architecture
Strong background in designing and implementing distributed, event-driven microservices using Kafka, RabbitMQ, AWS SQS/SNS, and Celery. Skilled in building fault-tolerant, asynchronous processing pipelines for large-scale SaaS and fintech applications.
Frontend Development
Solid skills in building responsive web interfaces using React, Next.js, Angular, TypeScript, HTML, and CSS. Experience integrating frontend components with GraphQL and REST APIs.
Database Management
Proficiency with relational and non-relational databases including PostgreSQL, MySQL, MongoDB, DynamoDB, and Redis. Experience optimizing queries and leveraging caching strategies to improve performance.
AI & LLM Integration
Hands-on experience integrating large language models into RAG pipelines using LangChain, Pinecone, and OpenAI. Knowledge of AI agent workflows, vector embeddings, and keyword search for intelligent document retrieval.
Testing & Quality Assurance
Comprehensive testing capabilities using pytest, Jest, Playwright, unittest, and Jasmine. Skilled in writing unit, integration, and end-to-end tests to ensure release reliability and reduce post-release defects.
Observability & Monitoring
Experience setting up application monitoring and observability using CloudWatch, Datadog, Sentry, Prometheus, Grafana, Azure Monitor, and Application Insights to track performance, errors, and system health.
API Design & Integration
Deep expertise in designing and documenting RESTful APIs using OpenAPI/Swagger, as well as integrating third-party APIs including payment gateways, banking APIs, and OAuth 2.0/OIDC authentication providers.
Expertise in building scalable backend services and APIs using Python, FastAPI, Django, Django REST Framework, and Flask. Proven track record of engineering high-performance systems supporting millions of transactions and thousands of concurrent users.
Cloud & DevOps Engineering
Extensive experience with AWS and Azure cloud platforms, including ECS, EKS, Lambda, SQS/SNS, and Azure Service Bus. Proficiency in containerization with Docker, orchestration with Kubernetes, infrastructure-as-code with Terraform, and CI/CD automation using GitHub Actions and Jenkins.
Distributed Systems & Event-Driven Architecture
Strong background in designing and implementing distributed, event-driven microservices using Kafka, RabbitMQ, AWS SQS/SNS, and Celery. Skilled in building fault-tolerant, asynchronous processing pipelines for large-scale SaaS and fintech applications.
Frontend Development
Solid skills in building responsive web interfaces using React, Next.js, Angular, TypeScript, HTML, and CSS. Experience integrating frontend components with GraphQL and REST APIs.
Database Management
Proficiency with relational and non-relational databases including PostgreSQL, MySQL, MongoDB, DynamoDB, and Redis. Experience optimizing queries and leveraging caching strategies to improve performance.
AI & LLM Integration
Hands-on experience integrating large language models into RAG pipelines using LangChain, Pinecone, and OpenAI. Knowledge of AI agent workflows, vector embeddings, and keyword search for intelligent document retrieval.
Testing & Quality Assurance
Comprehensive testing capabilities using pytest, Jest, Playwright, unittest, and Jasmine. Skilled in writing unit, integration, and end-to-end tests to ensure release reliability and reduce post-release defects.
Observability & Monitoring
Experience setting up application monitoring and observability using CloudWatch, Datadog, Sentry, Prometheus, Grafana, Azure Monitor, and Application Insights to track performance, errors, and system health.
API Design & Integration
Deep expertise in designing and documenting RESTful APIs using OpenAPI/Swagger, as well as integrating third-party APIs including payment gateways, banking APIs, and OAuth 2.0/OIDC authentication providers.
Experience
Professional experience10+ years
Freelancer since2026
Languages
EnglishNative speaker
Project history
Built backend services and automated workflows for BEAM, a multi-tenant B2B SaaS platform supporting building energy benchmarking and regulatory compliance across 12,000+ buildings in 30+ U.S. jurisdictions. Led full-stack development using React/Next.js and FastAPI, engineered Python backend services with FastAPI, Pydantic, and SQLAlchemy ORM, optimized REST APIs and PostgreSQL queries on AWS RDS with Redis caching, architected event-driven microservices with Kafka and AWS SQS/SNS, integrated LLMs into a RAG pipeline using LangChain and Pinecone, containerized services with Docker, deployed on AWS ECS/EKS, managed infrastructure with Terraform, and automated CI/CD using GitHub Actions and Jenkins.
Worked on two major projects: (1) Digital Payments & Financial Services Platform - engineered scalable Python/FastAPI backend services for payment processing supporting 1M+ annual transactions, implemented idempotent payment workflows using Amazon Aurora PostgreSQL and DynamoDB, integrated third-party banking APIs with OAuth 2.0/OIDC, built event-driven microservices with AWS Lambda, SQS/SNS, and Kafka, and deployed containerized services on AWS ECS/EKS. (2) Airport Mobility & Digital Commerce Platform - engineered Python and Azure backend services for an airport mobility platform serving 3M+ annual passengers across 10+ European hubs, scaled RESTful APIs reducing search latency by 40%, optimized Python/Django payment backend integrating PayPal, designed Celery workers and Azure Service Bus messaging, deployed Docker containers on Azure Container Apps, and integrated React interfaces with GraphQL APIs.
Engineered scalable backend services and microservices using Python and Django. Designed and optimized relational and non-relational database architectures with PostgreSQL and MongoDB. Developed and documented REST APIs using OpenAPI/Swagger. Built responsive frontend components using React, Angular, and TypeScript. Containerized microservices using Docker and implemented application monitoring with the ELK stack. Automated build, test, and deployment pipelines with Jenkins and CI/CD best practices on AWS. Implemented unit and integration testing suites with pytest.