Senior Software Engineer

Distributed systems and cloud platforms built for production.

I am a senior software engineer with 20+ years of experience building production systems across logistics, mortgage, healthcare, imaging, and enterprise software. My work centers on C#/.NET, AWS, PostgreSQL, microservices, infrastructure automation, and architecture that remains supportable over time.

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Experience

Hands-on engineering with architecture ownership across multiple domains.

2023-Present

X86 Consulting

Architect / Development Consultant

Built Python logistics optimization services deployed with Docker on AWS Elastic Beanstalk, automated cloud provisioning with AWS CLI and EB CLI, and evaluated locally hosted LLMs for logistics analysis workflows.

2022-2023

KBX Logistics

Tech Lead / Senior Software Engineer

Led an 8-engineer team building a distributed logistics platform using PostgreSQL, DynamoDB, and AWS Aurora; delivered REST APIs and operational analytics services.

2018-2021

Rocket Mortgage

Senior Software Engineer

Developed backend services for high-traffic mortgage systems supporting hundreds of thousands of users, with Terraform-based infrastructure automation and Aurora migration work.

2010-2018

VersaImage Software

Senior Software Engineer

Architected HIPAA-compliant imaging systems integrating OCR and image processing, including patented bottle-image analysis technology derived from video streams.

Architecture Portfolio

Representative systems across orchestration, logistics optimization, imaging, and modernization.

Mortgage Platform Service Orchestration

Workflow-driven backend platform for mortgage processing at scale

Service coordination through API gateway, workflow orchestrator, event bus, and event store, with identity, document, and notification services integrated around an Aurora/SQL core.

Metadata-driven workflow control
Coordinated rollback across services
Operational metrics and central logging

Logistics Optimization AWS + Python

Optimization engine and API delivery for logistics scenarios

Shipment data enters an ETL layer and flows into a Python optimization engine, scenario generator, results API, and analytics-backed operational store deployed on AWS Elastic Beanstalk.

Medical Imaging OCR + Verification

Capture and verification pipeline for medical imaging workflows

Scanner and video capture systems feed frame extraction, image flattening, OCR recognition, prescription verification, audit logging, and exception handling paths.

Cloud Modernization Migration Strategy

Legacy-to-cloud modernization with feature flags and Terraform automation

Structured migration from legacy PHP and SQL Server systems into .NET Core services, AWS Aurora, CI/CD, feature-flagged rollout, and monitoring-backed operations.

Engineering Approach

Strong systems come from clear boundaries, realistic trade-offs, and solid operations.

Architecture with operational realism

I design service boundaries, data flow, and deployment strategies with reliability, maintainability, and support burden in mind from the start.

Hands-on technical leadership

My best roles combine direct engineering work with architectural guidance, design review, mentoring, and technical direction that stays grounded in implementation.

Quality over noise

Clean code, meaningful tests, predictable deployments, useful telemetry, and understandable systems matter more than flashy complexity.

Documents

Resume, architecture portfolio, and introduction letter.

Resume Senior Software Engineer Resume PDF download Portfolio Systems Architecture Portfolio PDF download Letter Introduction Letter PDF download

Contact

Available for senior individual contributor and technical lead roles.

I am most effective in senior engineering roles where I can stay deeply hands-on while also shaping architecture, standards, and long-term technical direction.

rlong.hails12135@gmail.com 231-360-8716 github.com/rlong12135