root@career:~$ ./init_profile.sh

Brandon Eilers

>Lead Software Engineer

I architect, build, and lead complex software projects end to end, from system design and hands-on development through production delivery. I did it for 8+ years as technical lead on regulated banking systems at JPMorgan Chase, and I do it today as lead engineer on a small team building payment and document-signing platforms on AWS.

~/about

about me

I'm a Lead Software Engineer with 19+ years of building and modernizing systems where correctness comes first, mostly in banking and payments. For 8+ years I was technical lead for a six-engineer team on a mission-critical banking application at JPMorgan Chase, and today I lead a small engineering team building payment and contract platforms on AWS. Earlier, I built payment-processing solutions for American Express, Verizon, and the Federal Reserve Bank of Atlanta, and retail systems used by 20,000+ people at Academy Sports + Outdoors.

Most of my career has been the unglamorous-but-critical work: moving legacy platforms off aging, licensed infrastructure onto modern, open-source, cloud-native architectures without disrupting the business that depends on them. I also build with AI every day, from the assistant on this site to an agent that takes a feature from a fresh branch to a tested pull request.

I operate as a hands-on technical lead (setting technical direction, writing code across the stack, and mentoring the engineers around me) rather than a pure people manager. I'm looking for Staff, Senior, or Lead engineering roles where I can own complex systems end to end and work close to the business.

years experience19+
current focusPayments, Modernization & AI
domainsBanking, Fintech, Payments, Retail
architectureMicroservices, Event-Driven, Component-Based
languagesJava, Python, C#, JS/TS
infra / cloudAWS, Kubernetes, Docker
databasesOracle, PostgreSQL, SQL Server, MySQL
frontendReact, TypeScript, GraphQL, Figma/UX
based inKaty, TX (Houston)
statusOpen to new opportunities
root@career:~$ ./access_resume.sh
root@career:~$ ./view_diagram.sh
root@career:~$ ./ask_my_ai.sh
Hi, I'm Brandon's portfolio assistant. Ask me about his experience, skills, projects, or how to get in touch.
$ git diff --stat career
19+years building systems where correctness comes first
72production workflows moved off licensed Oracle BPM
67%faster batch runtime after the Airflow cutover
98%faster critical query, 30+ minutes to under one
60%less reserved Kubernetes memory
~/experience

experience

~/skills

technical skills


    
~/projects

projects

~/open-source

open source

brandoneilers/salt-react

React + TypeScript dashboard built on JPMorgan's Salt Design System: TanStack Query data fetching, Highcharts, a resizable, themeable layout, and a full Vitest + React Testing Library test suite.

TypeScript
salt-react dashboard: revenue, active users, conversion rate, and open tickets cards, a monthly revenue chart, and a recent activity feed
brandoneilers/anthropic-spring-boot-starter

A Spring Boot starter for the Anthropic Java SDK: auto-configuration, property binding, and a convenience chat service so a Spring Boot app gets a working Claude client with zero manual wiring. Most Claude integration examples are Python or TypeScript; this fills that gap for Java and Spring shops.

Java
~/writing

writing

~/colophon

how it's built

This site is intentionally low-tech: plain HTML, CSS, and vanilla JavaScript, with no framework, no build step, and no bundler. It's hosted on AWS Amplify under a custom domain registered through Route 53, deployed by uploading a zipped build of the static files directly through the Amplify console.

The "ask my AI" widget is a small serverless app of its own: an AWS Lambda function (Node.js) behind a Lambda Function URL, calling the Anthropic API (Claude Haiku) with the resume and project content baked into the system prompt so it only answers questions about my background. A DynamoDB table tracks per-IP request counts with atomic conditional writes to rate-limit the endpoint. It also has a fit check mode: paste a job description and Claude Sonnet uses the same grounded context to map my experience to the role's requirements, with the pasted text treated strictly as data rather than instructions.

root@career:~$ ./privacy_notice.sh

This site is a static personal portfolio — plain HTML, CSS, and JavaScript, with no accounts, cookies, or advertising trackers.

The "ask my AI" chat widget sends your message to Anthropic's Claude API to generate a response. Messages are not stored beyond what's needed to enforce a per-IP rate limit (tracked in a DynamoDB table by IP address, with automatic expiry).

The chat widget is protected by Cloudflare Turnstile, an invisible bot-detection check. Turnstile may collect information about your browser and device as described in Cloudflare's Turnstile Privacy Policy.

Questions about this can be sent to brandoneilers@gmail.com.