Andrew Fellman

Summary

Senior engineer who builds products and infrastructure for regulated fintech. I've spent seven years turning a mortgage intelligence startup into an award-winning platform — unifying fragmented product lines, leading a platform squad through an acquisition, and building the retrieval and chat layers that now sit in front of 20+ tools. I pair architectural instincts with a bias toward pragmatic delivery: pick the right abstraction, prove it works, then hand it off cleanly.

Selected Wins

• Built an AI chatbot with a custom MCP server that lets enterprise lenders schedule reports, automate forecasting, and navigate 20+ tools without leaving chat — reducing support load and surfacing features users didn't know existed.
• Designed a RAG pipeline that indexes help docs, compliance memos, and pricing data into pgvector, with orchestrated sub-agents that return sourced answers in under a second — cutting customer-service volume and lowering the barrier to product feedback.
• Led the .NET to Next.js migration that cut new-feature delivery timelines by roughly a third.
• Championed the monorepo consolidation of multiple Next.js micro-frontends, eliminating cross-repo duplication and accelerating team velocity.

Experience

Highway

Senior Software Engineer / Technical Lead

April 2022 – Present Award-winning mortgage intelligence and marketing platform (MBS Highway + ListReports) serving 180+ enterprises and 30,000+ loan officers nationwide.

• Lead a six-engineer platform squad (NYC + remote) across web, API, and AI infrastructure; own headcount planning, delivery cadence, and incident response.
• Architected the websocket-assisted AI layer and MCP tooling stack that lets customers trigger report generation and portfolio workflows directly from chat.
• Designed the retrieval pipeline that streams help-center content, regulation memos, and playbooks into pgvector, routing questions through orchestrated sub-agents for trustworthy, sourced responses.
• Led the .NET-to-React migration and component library push that cut new-feature timelines by roughly a third.
• Drove the consolidation of multiple Next.js micro-frontends into a single NX monorepo, replacing copy-paste culture with shared libraries and faster CI.
• Built white-label and compliance tooling for enterprise accounts, including dynamic region-specific PDF exports across 20+ products.
• Advocated for adopting MUI over a custom component library, freeing the team to focus on product logic instead of reinventing UI primitives.
• Replaced a paid third-party screen-recording service with an in-house browser-based solution, cutting vendor costs and giving users seamless report walkthroughs.
• Manage the Bitbucket CI/CD pipeline and custom deployment strategy for the multi-project monorepo.

MBS Highway

Front End Developer

July 2018 – April 2022 Promoted to Senior Engineer after MBS Highway acquired ListReports and formed the Highway parent brand.

• Collaborated on a five-developer team building tools for mortgage lenders and realtors: custom open-house flyers, zip-code real-estate visualizations, and live MBS market charting.
• Spearheaded a unified data architecture across 11 previously siloed tools, enabling cross-feature data sharing that eliminated redundant user input and accelerated development.
• Integrated SignalR websockets for real-time bond-market pricing, replacing polling and reducing API load.
• Researched and shipped browser-based screen sharing/recording and transactional email integration (Mailchimp/Mandrill).

Earlier Roles

Instructor · Visual Systems Engineer · IT Manager

2011 – 2020

• Rutgers University: Graduated from the Full Stack Bootcamp, returned as a TA, then led a 24-week cohort as primary instructor — mentoring 25+ students through full-stack JavaScript and React.
• Freelance visual systems engineer: Built real-time OpenGL/P5.js installations driven by MIDI controllers for live performers.
• Abrahams Natural Foods: Ran IT operations and built an in-house inventory platform plus the company's public web presence.

Technical Skills

Frontend

Backend & Data

DevOps & Tooling

AI & Automation

Education

Rutgers University

Full Stack Bootcamp Certificate

2018

Johnson & Wales University

B.S. Food Service Management

2011

Eight years in high-volume professional kitchens before pivoting to engineering — pressure-tested in environments where precision, speed, and composure under stress are non-negotiable.