Senior Software Engineer with full-stack experience building scalable cloud-native applications across backend, frontend, and AI-powered systems. Specialized in designing production LLM workflows, RAG pipelines, agentic tooling, and distributed services using Python, TypeScript, React, and AWS.

Nicholas Eng

Senior Software Engineer with full-stack experience building scalable cloud-native applications across backend, frontend, and AI-powered systems. Specialized in designing production LLM workflows, RAG pipelines, agentic tooling, and distributed services using Python, TypeScript, React, and AWS.

Available to hire

Senior Software Engineer with full-stack experience building scalable cloud-native applications across backend, frontend, and AI-powered systems. Specialized in designing production LLM workflows, RAG pipelines, agentic tooling, and distributed services using Python, TypeScript, React, and AWS.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
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Language

English
Advanced

Work Experience

Senior Software Engineer at ProTech IT Solutions
August 1, 2022 - Present
Developed a full-stack AI-powered insurance marketplace platform integrating chat, voice, and classification systems using Python, React, TypeScript, and AWS to support customer-facing automation workflows. Designed reusable AI platform components and production-grade RAG pipelines using ChromaDB and Sentence-Transformers with hybrid retrieval to optimize latency, accuracy, and inference costs. Implemented prompt orchestration and tool/function-calling workflows for structured extraction, summarization, and multi-step execution. Integrated multi-provider LLMs (OpenAI, Anthropic Claude) with fallback routing for reliability and cost control. Built event-driven voice processing using Twilio Voice APIs for real-time call state management. Integrated Okta SSO, and built persistence and caching layers using PostgreSQL/SQLAlchemy Async/asyncpg/Alembic, Redis, and DynamoDB for session and conversation state. Containerized and deployed services with Docker and AWS ECS/Fargate/EC2, and delivere
Senior Development Engineer II at AWS
August 1, 2018 - August 1, 2022
Built high-traffic REST APIs and backend services for media upload, metadata management, authentication, and playback using Python and Java. Developed distributed microservices to orchestrate video upload, encoding, and playback pipelines for scalability and reliability. Implemented asynchronous processing for large file uploads and encoding tasks to increase throughput while maintaining responsive APIs. Integrated Amazon S3 with pre-signed URL workflows for secure client-side upload/download. Built event-driven serverless workflows using AWS Lambda to automate media processing and notifications. Optimized performance using Redis caching for frequently accessed metadata and playback information to reduce database load and improve response times.
Software Engineer at Sila Solutions Group
June 1, 2015 - July 1, 2018
Delivered full-stack enterprise web and CRM applications using Node.js, Python, ASP.NET, React, and Angular. Modernized legacy ASP.NET MVC applications via backend refactoring and performance improvements. Built REST APIs using Express.js integrated with modern single-page applications. Developed complex React/Angular frontends with Redux for state management. Migrated marketing and CRM systems to modern frontend architectures to improve usability and maintainability. Improved quality with automated testing using Jest, PyTest, Jasmine, xUnit, and Selenium. Collaborated across teams using Git-based workflows, including feature delivery, code reviews, and production deployments.

Education

Bachelor's degree, Computer Science at University of Connecticut
August 1, 2011 - May 1, 2015
Bachelor’s degree, Computer Science at University of Connecticut
August 1, 2011 - May 1, 2015
Bachelor’s degree, Computer Science at University of Connecticut
January 1, 2011 - May 1, 2015

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Professional Services, Media & Entertainment