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I’m Eric Zheng, a senior software engineer with 12 years of experience taking production systems from concept to enterprise scale, spanning ERP, professional services, retail energy, healthcare, and financial data. I focus on building reliable, low-latency pipelines and regulated, high-trust systems where correctness, security, and observability matter. Recently, I’ve been deeply focused on applied AI/ML—building LLM assistants, retrieval-augmented generation and grounding pipelines, and agentic workflows that serve tens of thousands of users. I’m comfortable across .NET, Python, and modern ML tooling, and I enjoy connecting research, engineering execution, and domain stakeholders to deliver measurable impact.…I’m Eric Zheng, a senior software engineer with 12 years of experience taking production systems from concept to enterprise scale, spanning ERP, professional services, retail energy, healthcare, and financial data. I focus on building reliable, low-latency pipelines and regulated, high-trust systems where correctness, security, and observability matter. Recently, I’ve been deeply focused on applied AI/ML—building LLM assistants, retrieval-augmented generation and grounding pipelines, and agentic workflows that serve tens of thousands of users. I’m comfortable across .NET, Python, and modern ML tooling, and I enjoy connecting research, engineering execution, and domain stakeholders to deliver measurable impact.

Eric Zheng

Full Stack Developer, AI Developer, Back-End Developer, +7

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I’m Eric Zheng, a senior software engineer with 12 years of experience taking production systems from concept to enterprise scale, spanning ERP, professional services, retail energy, healthcare, and financial data. I focus on building reliable, low-latency pipelines and regulated, high-trust systems where correctness, security, and observability matter. Recently, I’ve been deeply focused on applied AI/ML—building LLM assistants, retrieval-augmented generation and grounding pipelines, and agentic workflows that serve tens of thousands of users. I’m comfortable across .NET, Python, and modern ML tooling, and I enjoy connecting research, engineering execution, and domain stakeholders to deliver measurable impact.…I’m Eric Zheng, a senior software engineer with 12 years of experience taking production systems from concept to enterprise scale, spanning ERP, professional services, retail energy, healthcare, and financial data. I focus on building reliable, low-latency pipelines and regulated, high-trust systems where correctness, security, and observability matter. Recently, I’ve been deeply focused on applied AI/ML—building LLM assistants, retrieval-augmented generation and grounding pipelines, and agentic workflows that serve tens of thousands of users. I’m comfortable across .NET, Python, and modern ML tooling, and I enjoy connecting research, engineering execution, and domain stakeholders to deliver measurable impact.

Available to hire

I’m Eric Zheng, a senior software engineer with 12 years of experience taking production systems from concept to enterprise scale, spanning ERP, professional services, retail energy, healthcare, and financial data. I focus on building reliable, low-latency pipelines and regulated, high-trust systems where correctness, security, and observability matter.

Recently, I’ve been deeply focused on applied AI/ML—building LLM assistants, retrieval-augmented generation and grounding pipelines, and agentic workflows that serve tens of thousands of users. I’m comfortable across .NET, Python, and modern ML tooling, and I enjoy connecting research, engineering execution, and domain stakeholders to deliver measurable impact.

Skills

Experience Level

Expert

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Expert

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Expert

Expert

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Expert

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Expert

Intermediate

Language

English

Advanced

Work Experience

Senior Software Engineer at Bloomberg LP

May 2, 2022 - Present

Anchored applied AI/ML engineering for the Bloomberg Terminal: built generative AI capabilities for news ingestion, structured-data query workflows, and real-time earnings analysis. Productionized pipelines serving 50,000+ documents per day with median end-to-end latency under 4 seconds from EDGAR publication to analyst dashboards. Re-engineered legacy extractive summarization into a hybrid extractive-then-abstractive architecture to constrain outputs to source spans, holding numerical hallucination rates below 0.5% in production across millions of summaries. Upgraded summarization shortly after the 2023 BloombergGPT release by improving summary quality scores by 28% while lowering inference cost per document. Trained a fine-tuned BloombergGPT variant to translate natural-language analyst questions into Bloomberg Query Language (BQL), reaching 25,000+ terminal users in a year and deflecting ~40% of inbound BQL support tickets. Embedded constrained decoding logic to bias token generatio

Software Engineer at Nextech Systems

November 2, 2019 - May 2, 2022

Led healthcare software modernization for an EMR/EHR and practice-management vendor serving 9,000+ specialty providers, navigating COVID-driven pivots and federal interoperability requirements. Launched Nextech’s first HIPAA-compliant telehealth platform in 7 weeks during lockdown, onboarding 600+ specialty practices in the first 90 days and exceeding 100,000 video visits in 6 months. Designed a decoupled sidecar architecture integrating with legacy monolithic EMR via REST APIs and webhooks to avoid direct coupling and reduce refactoring effort while preserving visit traceability in provider charts. Composed video stack using Twilio Programmable Video with .NET and React session handling while keeping PHI within EMR boundaries, improving security posture and shortening the typical security review cycle. Headed FHIR R4 API implementation ahead of 21st Century Cures Act deadlines, supporting 50,000+ FHIR API calls per day from third-party apps. Devised a translation layer mapping propr

Software Engineer at NextTech Systems

November 2, 2019 - May 1, 2022

Led healthcare software modernization for a Tampa-based EMR/EHR and practice-management vendor serving 9,000+ specialty providers. Launched NextTech's first HIPAA-compliant telehealth platform in 7 weeks during COVID lockdown, onboarding 600+ specialty practices in the first 90 days and surpassing 100,000 video visits in 6 months as a permanent product line. Designed sidecar service architecture to integrate with legacy monolithic EMR via REST APIs and webhooks (avoiding direct schema coupling) while keeping video visits indistinguishable from in-person visits in provider charts. Composed the video stack using Twilio Programmable Video, .NET Core 3.1, and a React+session model approach that kept PHI within EMR boundaries and reduced typical 4-week security review time to under 1 week. Headed FHIR R4 API implementation ahead of the 21st Century Cures Act deadline, preserving NextTech's ONC certification and serving 50,000+ FHIR API calls per day from third-party patient apps within 6 mo

Senior Software Engineer at Bloomberg LP

November 1, 2019 - Present

Led real-time AI/ML enhancements for the Bloomberg Terminal: productionized real-time news and filings summarization pipelines serving 50,000+ documents daily with median end-to-end latency under 4 seconds; engineered an LLM-powered earnings-call intelligence agent using real-time ASR and multi-step reasoning; coordinated cross-functional stakeholders to deliver robust, compliant features.

Software Engineer at Major Energy Services

August 2, 2016 - November 1, 2019

Led modernization of customer self-service and EDI integration platforms for multi-state retail energy suppliers, supporting hundreds of thousands of residential and commercial customers across multiple states. Rebuilt the MyAccount customer self-service portal from legacy ASP.NET Web Forms into a responsive Angular SPA backed by ASP.NET Web API, doubling monthly active users (~80,000) within 6 months and reducing billing/usage call center volume by 35%. Designed a Redis-backed stale-while-revalidate caching layer to reduce dashboard load times from 4 seconds to under 600ms and absorb 5x peak traffic during billing cycle spikes. Constructed an asynchronous ingestion pipeline for EDI 867 usage feeds across 15+ local utilities with retry, backoff, and reconciliation for undelivered usage data using explicit UI freshness timestamps. Spearheaded a pluggable EDI integration platform replacing one-off utility connectors, shrinking onboarding from 6 weeks to 10 days and improving enrollment s

Senior Software Engineer at Nextech Energy Services

August 1, 2016 - November 1, 2019

Led modernization of customer self-service and EDI integration platforms across NY, NJ, CT, MA, MD, OH, PA, IL, and DC; supported the company's acquisition by Spark Energy; built scalable architecture for on-boarding 150+ new users per quarter and integrated per-utility EDI feeds.

Software Engineer at KPMG US

August 1, 2015 - August 1, 2016

Delivered enterprise features for KPMG's Global Assignment Management System; worked across a multi-team Agile SDLC using ASP.NET MVC, C#, and SQL Server; implemented responsive UI components and improved data workflows.

Software Engineer at Marble.com

February 1, 2014 - August 1, 2015

Built a greenfield ERP platform from the ground up using ASP.NET MVC and Kendo UI; contributed across user/role management, order processing, scheduling, and authentication modalities.