Osama AttaU1
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Full-stack software engineer

Omaha, NECentral TimeOpen to remote & relocation

I build the whole tech stack. AI included.

Five years building production systems with Java/Spring, TypeScript/Angular and AI, on a foundation in computer engineering and embedded firmware.

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What I'm working on now

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FinTech at Union Pacific

Modernizing the financial systems behind America's largest railroad. As a Senior Project Engineer in FinTech, I build and maintain full-stack applications across finance, payroll and marketing, from AI-powered OCR tools that turn documents into data to a new platform for managing market dimensions.

MONTHS IN ROLE-- months in role
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Artificial Intelligence Certificate

Coursework at the University of Nebraska at Omaha, expected December 2026.

MONTHS TO GO-- months to go
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Skills & Projects

Click a skill or a group to light up the work that uses it, or click a project to see its skills.

Featured

The six projects worth a closer look
01 · AI · FinTech

AI payment extraction

A Java/Spring app that reads check payment details from customer emails, applies them to accounts receivable and flags exceptions for review. Built spec-first with OpenSpec and AI coding agents.

Result: 5% more accurate than the legacy system

Uses: Java · Spring / Spring Boot · REST APIs · AI integration · Spec-driven dev (OpenSpec) · AI-assisted dev

02 · Full stack · Analytics

Resource utilization platform

Two web apps on Oracle, Java/Spring and Angular that track crew productivity so expensive equipment is put to the best use.

Result: $4.6M in savings

Uses: Java · Spring / Spring Boot · TypeScript · Angular · Oracle / SQL · REST APIs

03 · Full stack · AI-built

Self-service marketing data

A full-stack app that lets the marketing team maintain its own validated data instead of filing manual requests. Built spec-first with OpenSpec and AI coding agents, an approach I'm now recommending to other teams.

Result: Manual requests replaced by self-service

Uses: Java · Spring / Spring Boot · TypeScript · Angular · Oracle / SQL · REST APIs · Spec-driven dev (OpenSpec) · AI-assisted dev · Stakeholder partnership · Driving adoption

04 · Back end · Modernization

Finance platform modernization

Upgraded receivables and payables apps from Java 8 to 17 and Spring Boot, moved javax to Jakarta EE, replaced JMS with HTTP calls and cleaned up Maven parent POMs.

Result: Known security vulnerabilities patched

Uses: Java · Spring / Spring Boot · Jakarta EE · Maven · JMS

05 · Front end · Leadership

Legacy apps rebuilt for today

Led four interns rewriting two high-usage Apache Wicket apps as responsive Angular apps that work on phones.

Result: Two high-usage apps, mobile-ready

Uses: TypeScript · Angular · HTML/CSS · Java · Team leadership · Mentoring

06 · Mobile & web · Customers

Customer-driven app improvements

Shipped customer-requested features and critical fixes across Android and web apps.

Result: 63% fewer support tickets year over year

Uses: Android · Angular · TypeScript · Java · Stakeholder partnership

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Experience

  1. Senior Project Engineer, FinTech · Union PacificDec 2025 – now
  2. Project Engineer, Operations · Union PacificOct 2024 – Dec 2025
  3. Associate Senior Application Developer, Operations · Union PacificMay 2023 – Oct 2024
  4. Technology Intern, Operations · Union PacificOct 2021 – May 2023
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Education

Artificial Intelligence CertificateUniversity of Nebraska at Omaha · exp. Dec 2026
B.S. Computer EngineeringUniversity of Nebraska–Lincoln · 2023 · Minors in Math and CS