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Nathaniel – AWS, Python, OpenAI, experts in Lemon.io

Nathaniel

From United States (UTC-5)flag

AI Engineer|Strong senior
Back-end Web Developer|Strong senior
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Nathaniel – AWS, Python, OpenAI

Nathaniel is a seasoned engineer focused on AI-driven backend systems, with a strong track record in deploying LLM-based applications and agentic workflows. He brings hands-on experience with prompt engineering, RAG setups, and cost-effective LLM deployment strategies.

Nathaniel has contributed to major companies like Meta and Pfizer and also built his own startup from the ground up. Throughout his career, he defined product roadmaps, led sprint planning, managed AI researchers and developers, and drove business development - from validating ideas with VCs to onboarding customers.

18 years of commercial experience in
Adtech
AI
Fintech
Insurance
Job and career services
Recruiting
Video production
Content creation and licensing
Video streaming software
Virtual reality software
Gaming software
Main technologies
AWS
8 years
Python
8 years
OpenAI
3 years
LLM
3 years
Additional skills
PyTorch
.NET Core
Claude LLM
LangChain
React
React Native
Vertex AI
Node.js
Airflow
Kubernetes
FastAPI
NLP
PostgreSQL
Microsoft Azure
RabbitMQ
MySQL
GraphQL
PHP
Direct hire
Possible
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Experience Highlights

Director of Platform Development
Dec 2024 - Jul 20256 months
Project Overview

It's an AI-powered filmmaking platform that lets creators generate cinematic-quality video, sound, and VFX using natural language prompts.

Responsibilities:
  • Built and launched the platform from scratch, including front-end, back-end, AI integration, and production pipeline, as a solo founder and engineer.
  • Delivered functional alpha within 30 days, showcasing whole scene generation with prompt-to-video capabilities and character consistency.
  • Developed a Character Engine for consistent emotional arcs across scenes using natural language descriptions and prompt chaining.
  • Engineered a chunked scene generator for Veo 3 and Sora-style models to maintain temporal and spatial continuity across 100+ cinematic shots.
  • Integrated text-to-video, text-to-audio, and VFX pipelines to simulate IMAX-quality storytelling using generative AI.
  • Created JSON-based prompt scripting for fine-tuned control of character behavior, camera work, lighting, and dialogue.
  • Designed agent-based pipelines to orchestrate multimodal generation with LLM planning, reducing human editing time by 80%.
Project Tech stack:
AI
API
React
Python
Airflow
Claude LLM
LLM
Node.js
Vertex AI
OpenAI
OpenAI API
Aiohttp
FastAPI
Kubernetes
LangChain
NLP
Director of Engineering
Dec 2023 - Apr 20251 year 3 months
Project Overview

It's an AI-powered recruiting platform that connects top-tier engineers with high-growth startups. The platform uses intelligent automation, machine learning, and data-driven matchmaking to streamline the hiring process and eliminate noise.

Responsibilities:
  • Designed and built the platform architecture using React, FastAPI, and PostgreSQL.
  • Led development of an AI-driven matching engine using OpenAI embeddings, vector search, and intelligent ranking logic.
  • Integrated GPT-powered workflows for resume parsing, talent outreach, and auto-matching.
  • Built automation tools for lead generation, CRM updates, and job intake.
  • Trained and deployed ML models to improve match accuracy and reduce manual review.
  • Managed scalable cloud infrastructure (AWS, Docker, Supabase) and set up CI/CD pipelines for fast deployment.
  • Defined product roadmap, led sprint planning, and created internal dashboards for performance tracking.
  • Drove business development - validated the product with startups and VCs, handled pricing, sales, and customer onboarding.
  • Recruited and managed freelance developers and AI researchers.
Project Tech stack:
React
AI
LangChain
Python
PostgreSQL
Airflow
Node.js
Platform Lead
Jan 2024 - Dec 202411 months
Project Overview

It's a company that administers home and auto service contracts, handling claims and coverage management while third-party vendors handle sales and marketing.

Responsibilities:
  • Designed and implemented internal tools to automate repetitive admin tasks, saving 100+ hours/month across teams.
  • Contributed to the development of permission-controlled environments, navigating strict compliance frameworks.
  • Created robust unit and integration test suites to ensure business-critical workflows ran reliably at scale.
  • Worked within GitLab CI environments to enhance DevOps pipelines, reducing deployment friction.
  • Proactively built visibility into systems using log analysis and solved critical production issues.
  • Worked on feature development on the product to ship new features for this insurance product.
Project Tech stack:
React
Node.js
Python
RabbitMQ
Azure Functions
Microsoft Azure
Azure Service Bus
Azure SQL
Azure DevOps
Platform Engineer
Feb 2023 - Dec 202310 months
Project Overview

It's a VR headset by Meta that allows users to experience immersive games, apps, and virtual environments for entertainment, fitness, work, and social interaction.

Responsibilities:
  • Developed and deployed automation workflows that reduced manual intervention in the Quest headset fulfillment pipeline, supporting a 3x increase in throughput during peak demand periods.
  • Streamlined order processing systems, resulting in a 40% reduction in processing time and helping the logistics team meet SLA targets more consistently.
  • Created in-house diagnostic and troubleshooting tools that empowered the customer service team to resolve common device issues without escalating to engineering, cutting resolution time by 60%.
  • Enabled faster identification and resolution of hardware and software issues, improving the average customer support response time and boosting satisfaction scores.
  • Collaborated with fulfillment, customer support, and product engineering teams to integrate tooling into daily operations, reducing inter-team dependencies and support ticket backlogs.
Project Tech stack:
React
GraphQL
PHP
MySQL

Education

2007
Computer Science
Associates

Languages

English
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