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Aries Lacson

@arieslacson

Senior Software Engineer specializing in AI/ML, LLM systems, backend engineering, and cloud-native applications. Open to fully remote opportunities wo

Philippines

Message

What I'm looking for

I’m looking for a fully remote engineering role where I can contribute to production systems and solve meaningful technical problems. I’m especially interested in AI/ML, LLM, backend, full-stack, platform, cloud, and DevOps work. I’m flexible across time zones and open to companies of any size.

I’m a Senior Software Engineer with 10+ years of experience building production software, backend platforms, AI/ML systems, and distributed applications.

My recent work has focused heavily on AI and LLM engineering, including RAG pipelines, semantic search, embeddings, vector retrieval, recommendation systems, prompt orchestration, evaluation workflows, and production AI services using Python and FastAPI.

I also have strong backend experience with Java, Spring Boot, Node.js, TypeScript, PostgreSQL, Redis, Kafka, REST APIs, microservices, and event-driven architecture. On the infrastructure side, I’ve worked hands-on with AWS, Azure, GCP, Docker, Kubernetes, Terraform, CI/CD, monitoring, and production reliability.

I enjoy solving practical engineering problems, improving system performance and reliability, and turning complex requirements into maintainable production systems. I’m comfortable working independently and with distributed international teams across time zones.

I’m currently open to fully remote opportunities in AI/ML Engineering, LLM Engineering, Backend Engineering, Full Stack Engineering, Software Engineering, Platform Engineering, and DevOps.

Experience

Work history, roles, and key accomplishments

Senior AI / LLM Backend Engineer

Diffbot

Jun 2022 - Mar 2026 (3 years 9 months)

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.

Python fastAPI Langchain Agents LlamaIndex PostgreSQL Redis Machine Learning RAG Vector Search LLM

Senior Backend & AI Systems Engineer

Iflexion

Sep 2020 - May 2022 (1 year 8 months)

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 Development TypeScript Python PostgreSQL Redis React REST APIs Recommendation Systems NLP Backend Development

Java Backend Engineer

Software Mind

Jun 2017 - Jul 2020 (3 years 1 month)

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.

PostgreSQL Redis REST APIs Backend Development Java Spring Boot Microservices SQL Event Driven Architecture RBAC

Full Stack Java Developer

Exist Software Labs

Aug 2014 - Apr 2017 (2 years 8 months)

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%.

Java JavaScript SQL REST APIs HTML CSS Full Stack Developer Backend Development

Architectural Designer

SP Moderna

Oct 2010 - May 2014 (3 years 7 months)

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.

Autocad 3D Modeling Architecture Design

Education

Degrees, certifications, and relevant coursework

Pampanga State University

Bachelor of Science, Architecture

2006 - 2010

Grade: 3.6

Activities and societies: Student organizations, team projects, campus events, volunteer activities, creative design work, and recreational sports.

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.