Senior full-stack engineer

Logan Mohseni

I build things for the web

Senior full-stack engineer with 12+ years shipping production systems. Currently delivering serverless applications on AWS for nuclear and gas utility operations at Xcel Energy.

Resume

About Me

I’m a senior full-stack engineer with 12+ years of professional experience building and shipping production systems. Currently delivering serverless applications on AWS for nuclear and gas utility operations at Xcel Energy. My background spans infrastructure, backend architecture, and frontend development.

Before Xcel, I spent 9 years at SingleMind Consulting growing from Jr. Sysadmin to Sr. Developer, shipping features for a top-5 textbook publisher’s platform (millions of users), managing 30+ Linux/FreeBSD hosts, and becoming the team’s go-to for git, CI/CD, and AWS.

Technologies I work with:
  • TypeScript
  • React
  • Node.js
  • Python
  • AWS (Lambda, DynamoDB, API Gateway)
  • Terraform
  • Docker
  • Java / Spring Boot

Experience

Xcel Energy

Software Engineer 2022 - Present

Building serverless applications on AWS for nuclear and gas utility operations.

  • Built a full-stack nuclear outage scheduling platform (React, Node.js, Lambda, DynamoDB)
  • Drove platform-wide SSO migration, eliminating 13,000 lines of legacy auth code
  • Led DDD refactor of API layer into domain aggregates and bounded contexts
  • Integrated OpenSearch Serverless for materials search, reducing code complexity 30%
  • Led greenfield app foundation: monorepo structure, build tooling, TypeScript, CI/CD
  • Designed SAP integration service, unblocking batch processing across incompatible systems
  • Maintained Terraform IaC across 3+ apps (DynamoDB, Lambda, API Gateway, IAM)
  • Shipped shared TypeScript DTO packages with automated CI/CD for API contract consistency

SingleMind Consulting

Sr. Software Developer / Systems Administrator 2013 - 2022
Grew from Jr. Sysadmin to Sr. Developer over 9 years. Shipped features for a top-5 textbook publisher’s platform (millions of users), managed 30+ Linux/FreeBSD hosts, and became the team’s go-to for git, CI/CD, and AWS.

Education

May 2011
B.S. Linguistics (Anthropology)
University of Montana, Missoula

Projects

React Node.js AWS Lambda DynamoDB TypeScript
Nuclear Outage Scheduling Platform
Full-stack serverless application for managing nuclear plant outage schedules. React frontend, Node.js Lambda backend, DynamoDB storage.
AWS Node.js SAP
SAP Integration Service
Designed integration layer between legacy SAP systems and modern serverless architecture, unblocking batch processing across incompatible systems.
OpenSearch AWS TypeScript
OpenSearch Materials Search
Integrated OpenSearch Serverless for materials search, reducing code complexity by 30% and improving search relevance.

Get in Touch

My inbox is always open. Whether you have a question or just want to say hi, I’ll try my best to get back to you!
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