Data Engineer, End-to-end batch data platform on AWS
Duration: Oct. 2025 - Present
Summary: Designed and built an end-to-end batch data platform on AWS using medallion architecture, integrating multiple source domains into an analytics-ready warehouse in RDS Postgres.
Responsibilities:
- Provisioned the full cloud stack as infrastructure-as-code with Terraform - S3 data lake, IAM roles & policies, AWS Glue jobs, MWAA (Managed Airflow), RDS Postgres, and VPC networking.
- Implemented medallion architecture (raw -> bronze -> silver -> gold): raw CSV/JSONL files landed in S3 are transformed to Parquet through bronze and silver layers, then joined and enriched into a curated gold schema in Postgres.
- Developed 6 PySpark ETL jobs on AWS Glue 4.0 (G.1X × 2 workers) covering three source domains - sales, customers, and user profiles - including cross-source enrichment (silver -> gold writing to gold.user_profiles_enriched).
- Orchestrated 4 Apache Airflow DAGs on MWAA that trigger Glue jobs via GlueJobOperator - two @daily pipelines (sales, customers) and two on-demand (user profiles, enrichment). DAG source synced from S3 every ~5 min.
- Modeled the gold layer in Postgres for downstream analytics consumption - enforced keys, types, and idempotent writes so re-runs produce stable results.
Technologies: Python, PySpark, AWS (S3, Glue, IAM, MWAA, RDS Postgres, VPC), Apache Airflow, Terraform, SQL, Parquet.
Full Stack Developer, Brand Legends (SEO-focused client products and custom analytics dashboard)
Duration: Jun. 2022 - Sep. 2025
Summary: Delivered end-to-end full-stack development for SEO-focused client products using WordPress/PHP backend and modern JavaScript frontend, including a custom SvelteKit analytics dashboard aggregating SEO data from third-party APIs.
Responsibilities:
- Built custom WordPress themes from scratch - structured, semantic HTML with on-page and technical SEO handled both in code and via plugin configuration.
- Architected multilingual/multi-region content infrastructure using WordPress multisite plus custom plugins for content management and per-region SEO settings.
- Modeled content with Advanced Custom Fields (ACF), Custom Post Types (CPT), and custom taxonomies; wrote complex SQL queries to power filters, sorting, and large-catalog listings efficiently.
- Exposed custom WordPress REST API endpoints for specialized data handling and headless integrations.
- Built block themes with custom native Gutenberg blocks in React/Preact - moving content creation off pagebuilders and onto the Gutenberg editor.
- Built a custom SEO analytics dashboard in SvelteKit aggregating third-party APIs (Ahrefs, Wincher, Matomo) - visit trends, keyword rank history, per-day/per-month breakdowns - with interactive visualizations rendered via d3-shape.
- Designed the relational data model and managed migrations with Prisma ORM on MySQL; validated forms endto-end with Zod; integrated Sentry for error tracking and performance monitoring.
- Owned end-to-end delivery - database schema -> REST API -> frontend integration -> deployment - on a longlived product, balancing new feature work with refactors and performance improvements.
Technologies: PHP, WordPress (multisite, ACF, CPT, custom REST API, Gutenberg), React, Preact, JavaScript, TypeScript, SvelteKit, D3, Prisma, Zod, Sentry, MySQL.
Team Lead, Content Makers Team, Internet Vikings (SEO Agency) (WordPress delivery team management and client site projects)
Duration: 2016 - 2020
Summary: Led a WordPress-specialized delivery team managing multiple client sites, focusing on team management, QA, technical direction, and hands-on delivery of WordPress projects using page-builders and customizations.
Responsibilities:
- Owned team management and delivery planning - scoping, estimation, task allocation, timelines, and release coordination across a distributed team.
- Ran QA and release processes - code review, acceptance checks against client briefs, and quality gates before deployment.
- Mentored team members through pair programming, code review, and internal documentation standards.
- Delivered client sites using Elementor and Divi page-builders when speed-to-market was the priority; maintained custom plugins and theme customizations for long-lived sites.
- Standardized builds and deployments with Linux, wp-cli, and Git - reproducible environments across the team.
Technologies: WordPress, PHP, JavaScript, MySQL, Linux, wp-cli, Elementor/Divi, Git.
System Administrator, "KM" Group of Companies (Corporate network and Windows infrastructure support)
Duration: Jul. 2012 - Jul. 2015
Summary: Supported Windows-based infrastructure and administered a corporate network of over 100 devices, ensuring stable and secure IT operations within the company.
Responsibilities:
- Maintained and supported Windows infrastructure and corporate network devices.
- Ensured network stability and security for over 100 devices.
Technologies: Windows.
Upstaffer since April, 2026
