JNJefferson NelssonSoftware Engineer · ValueMomentumAvailable for conversation

Welcome to my notebook

I build AI products from zero to production

ON-PREM LLM SERVINGDATA + INTEGRATIONSLANGGRAPH + CUSTOM ORCHESTRATIONINTAKE01TRIAGE02REVIEW03HUMAN04PUBLISH05
Developer assistance platform · intake to results

Performs static analysis, repository-aware review, and evidence-backed change assessment.

At ValueMomentum, I built developer tools and insurance document intelligence end to end: product interfaces, APIs, agent workflows, fine-tuned models, evaluation, and inference. Claims triage is 2x faster; self-hosted LLM serving has 40% lower latency.

I built interfaces, APIs, agent workflows, fine-tuned models, and production inference for developer tools and insurance products at ValueMomentum.

Zero-to-one ownershipProduct engineeringModels & AI systemsTechnical leadership
Illustrated portrait of Jefferson Nelsson
Engineer of recordJefferson NelssonSoftware engineer · AI product builder

Developer assistance & software engineering platform

My favorite work, built from scratch
ON-PREM LLM SERVINGDATA + INTEGRATIONSLANGGRAPH + CUSTOM ORCHESTRATIONINTAKE01TRIAGE02REVIEW03DOCS04APITEST05UITEST06MAP07REFACTOR08HUMAN09PUBLISH10
Review / 03PR review

Performs static analysis, repository-aware review, and evidence-backed change assessment.

Professional case files

AI products built for real workflows.

Personally owned from problem framing through implementation, evaluation, and production. Explore the workflows, outcomes, and architecture.

01 /

Professional

Developer Assistance System

An engineering product built from scratch to help teams triage issues, review PRs, keep docs current, test APIs and UIs, and modernize legacy code with repository-aware context.

OwnershipI owned problem framing, implementation, evaluation, demos, and product iteration, including the LangGraph workflows and custom orchestration framework.

OutcomeHalved manual effort across developer-assistance and code-migration workflows.

01020304050607

Swipe the diagram · numbers match the stages below

  1. 01Work intake
  2. 02Context graph
  3. 03Agent routing
  4. 04Tools
  5. 05Quality gates
  6. 06Human review
  7. 07Publish results

Scope

  • Issue triage and routing
  • Pull request review
  • Documentation synchronization
  • API and UI automation testing
  • Legacy code reverse engineering
  • Modernization workflows

Architecture

  1. Work intake
  2. Context graph
  3. Agent routing
  4. Tools
  5. Quality gates
  6. Human review
  7. Publish results

How I operate

Own the problem. Build the product.

01

Zero-to-one ownership

Most systems shown here were conceived, designed, and built by me end to end, from the first problem statement through production feedback.

02

Product execution

I turn workflow problems into working products, building interfaces, APIs, agent workflows, models, and inference, then evaluating behavior and iterating on feedback.

03

Technical leadership

I guide architecture, implementation standards, delivery decisions, and technical reviews for our agentic AI work, while continuing to build the core products myself.

04

Feedback & team growth

I use discovery and demos to shape product iteration, and interview and train engineers. The reusable orchestration runtime I built cut prototyping time by 70%.

Experience timeline

From founding engineer to AI product builder.

EducationMaster's in Computer Engineering · New York University · 2024Bachelor's in Computer Science · SRM University · 2022

01
Erie, PA

ValueMomentum

Sr. Lead Software Engineer · AI/ML & Agentic Systems

Build AI products from zero to production for engineering and insurance teams, with hands-on ownership across the stack and broader technical leadership.
  • Shipped the insurance document intelligence platform end to end for claims and underwriting; doubled claims triage and routing speed
  • Owned multi-agent developer-assistance and code-migration products from problem framing through implementation and iteration, halving manual effort
  • Created a reusable runtime with harness and context engineering, cutting prototyping time 70%; fine-tuned LayoutLMv3 + LSTM for multi-page classification
  • Developed ViT crop-damage models; deployed on-prem vLLM and Ray Serve inference with 40% lower end-to-end latency
02
Armonk, NY

Swiss Re

Data Engineer Intern

Data engineering on large-scale Spark pipelines: performance, testing, and monitoring.
  • Cut runtime 2.5x across a 20 TB Spark pipeline, lowering compute cost
  • Reduced production issues by 60% through CI unit and integration testing
  • Built a Python monitoring library that standardized logging and metrics across data jobs
03
New York, NY

NYU C2SMART

Research Assistant

Reinforcement learning and time-series research for robotics and immersive simulation.
  • Exceeded prior deep Q-learning baselines by 15%
  • Explored quaternion time-series models for forecasting 3D orientation
04
Chennai, India

Immigreat

Founding Software Engineer

Founding engineer who built the startup's backend from first architecture through launch on Google Cloud.
  • Delivered four core Python/Flask microservices serving 1M+ requests a month in the first year
  • Owned serverless backend architecture and production delivery
  • Led a 15+ person cross-functional team through launch

Personal lab · Open source

Tools I build to explore an idea properly.

Independent projects made on personal time.

A dependency-free Python observability toolkit for hierarchical tracing, structured logs, performance metrics, context propagation, and optional telemetry export.

OwnershipSolo open-source project: API design, implementation, testing, documentation, packaging, and release engineering.

01020304050607

Swipe the diagram · numbers match the stages below

  1. 01@trace
  2. 02Context
  3. 03Span tree
  4. 04Sampling
  5. 05Redaction
  6. 06Viewer
  7. 07Export

Outcome20+ releases on PyPI, about 600 downloads a month, and zero required dependencies.

Capabilities

Depth across the complete system.

From product interfaces and APIs through agent systems, models, evaluation, inference, infrastructure, and production feedback.

01

Product engineering

  • Framework design
  • LangSmith · Langfuse · OTel
02

Agent systems

  • Agentic design patterns
  • Harness engineering
  • Context engineering
  • Sub-agent routing · Skills
  • Guardrails
03

Models & evaluation

  • Fine-tuning · Evaluation
  • RAG
04

Cloud & infrastructure

  • GCP
  • CI/CD
WorkloadOrchestrateObserveOptimizeOutcome

Impact

Measured outcomes.

40%lower on-prem inference latencyValueMomentum
2xfaster claims triage and routingValueMomentum
70%less orchestration prototyping timeValueMomentum
2.5xfaster jobs on a 20 TB Spark pipelineSwiss Re · internship
60%fewer production issues through CI testingSwiss Re · internship
1M+API requests a month in the first yearImmigreat