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Senior AI / LLM Backend Engineer
Senior Software Engineer specializing in AI/ML, LLM systems, backend engineering, and cloud-native applications. Open to fully remote opportunities.
PhilippinesSenior AI / LLM Backend Engineer at Diffbot
Built production RAG and LLM enrichment services using Python, FastAPI, LangChain, LlamaIndex, PostgreSQL, Redis, embeddings, and vector search. Improved extraction consistency by 18%, reduced LLM cost per record by 26%, improved p95 latency by 22%, and built evaluation workflows that caught 90%+ of high-risk regressions before release.
PythonfastAPILangchain AgentsLlamaIndex
Built and optimized ecommerce search, recommendation, catalog, and backend services using Node.js, TypeScript, Python, PostgreSQL, Redis, and React. Improved product findability by 17%, reduced zero-result searches by 21%, cut API response times by 25%, and integrated NLP-assisted chatbot and product discovery workflows.
Node.Js DevelopmentTypeScriptPythonPostgreSQLRedisReactREST APIsRecommendation SystemsNLPBackend Development
Developed Java Spring Boot microservices for finance, telecom, and enterprise systems using REST APIs, PostgreSQL, Redis, messaging, and event-driven architecture. Reduced manual data handoffs by 40%, improved production reliability, strengthened RBAC and audit logging, and optimized reporting workflows from several minutes to under 20 seconds.
PostgreSQLRedisREST APIsBackend DevelopmentJavaSpring BootMicroservicesSQLEvent Driven ArchitectureRBAC
Developed and modernized Java-based retail and POS systems covering inventory, sales, transactions, reporting, and branch operations. Built full-stack features and admin dashboards, reduced manual reconciliation effort by 30%, and refactored legacy Java and SQL modules to reduce post-release fixes by 24%.
JavaJavaScriptSQLREST APIsHTMLCSSFull Stack DeveloperBackend Development
Prepared architectural concepts, floor plans, elevations, sections, and presentation drawings for residential and commercial projects. Worked with AutoCAD and 3D visualization, supported space planning and material selection, and coordinated with architects, engineers, clients, and construction teams on design revisions and project documentation.
Autocad3D ModelingArchitecture Design
Completed a Bachelor of Science in Architecture with coursework and project work in architectural design, drafting, space planning, construction documentation, and visualization. Thesis focused on a mixed-use commercial and residential building.