Senior full-stack product engineer with 6 years delivering production software across high-traffic betting, healthcare, and e-learning. Strong in TypeScript, React (including React Native), Node.js, product-focused front-end architecture, CI/CD, and performance. At FanDuel shipped a Node.js service load-tested above 100 RPS, and at Zenitech helped replace an inherited AI-generated application and enable a seven-person team to deliver ~80% of an annual roadmap in four months. Builds and operates DocPenny, a publicly deployed HTML-to-PDF service.

Adrian Ani

Senior full-stack product engineer with 6 years delivering production software across high-traffic betting, healthcare, and e-learning. Strong in TypeScript, React (including React Native), Node.js, product-focused front-end architecture, CI/CD, and performance. At FanDuel shipped a Node.js service load-tested above 100 RPS, and at Zenitech helped replace an inherited AI-generated application and enable a seven-person team to deliver ~80% of an annual roadmap in four months. Builds and operates DocPenny, a publicly deployed HTML-to-PDF service.

Available to hire

Senior full-stack product engineer with 6 years delivering production software across high-traffic betting, healthcare, and e-learning. Strong in TypeScript, React (including React Native), Node.js, product-focused front-end architecture, CI/CD, and performance.

At FanDuel shipped a Node.js service load-tested above 100 RPS, and at Zenitech helped replace an inherited AI-generated application and enable a seven-person team to deliver ~80% of an annual roadmap in four months. Builds and operates DocPenny, a publicly deployed HTML-to-PDF service.

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Experience Level

Expert
Expert
Expert
Expert
Expert

Language

English
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Work Experience

Senior Software Engineer at Zenitech - healthcare client
December 1, 2025 - May 31, 2026
Audited an inherited AI-generated application with circular dependencies, memory leaks, duplicated code, and no documentation; made the case for a targeted rewrite instead of continued patching. Co-led the rewrite with a seven-person consulting team, selecting Nuxt 4, reka-ui, Tailwind, and TanStack Query based on product and accessibility constraints, and establishing documentation and coding conventions. Helped the team deliver ~80% of the client's annual roadmap in four months on the new foundation. Reduced GitHub Actions PR pipeline time from ~8–10 minutes to ~2 minutes and added post-deployment end-to-end tests that block promotion to staging when regressions are detected. Containerized the frontend for AWS ECS and integrated delivery with the client's Azure-hosted .NET API.
Independent Full-Stack Engineer / Founder at UXPEDITIONS.R.L.
January 1, 2023 - Present
Hands-on software engineering focused on TypeScript product delivery and stabilizing an inherited codebase. Working in bounded engagements: investigate issues, agree on the correct change, implement it, and leave the team with tests and documentation. Includes building and operating DocPenny, a publicly deployed HTML-to-PDF product experiment built with TypeScript, PostgreSQL, queue-batched workers, Chromium, billing, and S3-compatible storage.
Software Engineer at Flutter Entertainment - FanDuel Sports book & Casino
April 1, 2022 - December 31, 2025
Worked in the company’s largest repository across React, React Native, Node.js, and AWS used by 10+ cross-functional teams; deployed and debugged services on Kubernetes alongside central DevOps. Shipped the team’s first back-end-for-front-end service as the only full-stack engineer: a Fastify service aggregating internal APIs, auto-scaling, and load-tested above 100 RPS for NFL Sunday traffic peaks. Mentored frontend colleagues on API design and Fastify while delivering the service to production. Consolidated three competing modal/dialog implementations into one, removing a long-standing UI layering defect in the customer application. Built an ESLint plugin detecting inefficient array method chains; adopted in the largest company repository and several backend services. Became productive in React Native within three days against an expected three-week onboarding by transferring experience from React web applications.
Web Developer at Unumbox Ltd - RealEstate UK
November 1, 2020 - April 30, 2022
Primary engineer on a Greenfield US real-estate licensing platform built on the MERN stack; provided onboarding, code review, and technical direction for rotating teams. Led migration from JavaScript to TypeScript and established CI/CD in Azure DevOps. Deployed and operated App Service, Blob Storage, and SQL Database on Azure, including day-to-day scaling and cost monitoring.
Full-Stack Engineer Intern at Tummy
March 1, 2020 - May 31, 2020
Built Vue and NestJS features and migrated a legacy CodeIgniter application from cPanel hosting to Google Cloud.

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Software & Internet, Healthcare, Education, Gaming, Real Estate & Construction