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Jheff Juan

@jheffjuan

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Senior backend and cloud engineer at Axesscom Philippines, operating APIs serving 20,000+ users.

Philippines

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At Axesscom Philippines, I build and operate production backend services supporting 20,000+ users and clients. I work across Python/FastAPI, C#/.NET, and REST APIs.

I also operate asynchronous workloads with Celery and Redis, processing background jobs and tuning queue handling and failure recovery. My work spans deployment automation, observability, and production reliability across AWS, Azure, and GCP.

More recently, I implemented RAG-based AI features using OpenAI and Gemini APIs with vector and search tooling for information retrieval and document-search workflows. I’ve also built data-processing workflows with Databricks, PySpark, and Snowflake.

At TwistResources, I built and maintained backend services and improved responsiveness by refactoring database queries and introducing background processing. Earlier, I built web services and integrations at Androbotics Clark and supported application development at BMWARE.

Experience

Work history, roles, and key accomplishments

Senior Software / AI Engineer

Axesscom Philippines

Oct 2022 - Aug 2026 (3 years 10 months)

Build and operate 10-15 production backend services across 4 environments, supporting approximately 300K-800K API requests per day and 20,000+ users/clients. Implemented RAG-based AI features and production data-processing workflows using Databricks, PySpark, and Snowflake.

Python fastAPI C# .NET REST APIs PostgreSQL Celery Redis AWS Azure GCP Docker Kubernetes Terraform CI CD OpenAI RAG Databricks PySpark Snowflake

Software Engineer

TwistResources

Apr 2020 - Jun 2022 (2 years 2 months)

Built and maintained 6-8 backend services supporting approximately 100K-300K API requests per day and 10,000+ users. Introduced Celery and Redis background processing to improve application responsiveness and refactored database queries for performance.

Python Django fastAPI NodeJS PostgreSQL Redis Docker Linux CI CD React Next.js MySQL MongoDB

Software Developer

Androbotics Clark

Sep 2018 - Dec 2019 (1 year 3 months)

Built and maintained 3-5 web services and integrations across 2-3 environments, supporting approximately 30K-80K API requests per day. Resolved production bugs and performance issues to improve application stability.

Python C# .NET REST APIs PostgreSQL MySQL React Linux Git

Part-Time Junior Developer

BMWARE

Jun 2017 - May 2018 (11 months)

Supported 2-4 business applications used by hundreds of users, processing approximately 10K-30K transactions per month. Developed Python/Django backend features and REST API endpoints, and fixed bugs and UI issues.