Software Engineer / Computer Science Developer (Mid–Senior Level)

Crossflow Technologies•Huntsville, AL

22h

About The Position

Crossflow Technologies, Inc. is looking for a mid- to senior-level software engineer who can both design solid systems and explain why they chose one approach over another. You will be part of a tight, highly collaborative scrum team delivering business-to-business applications for commercial nuclear energy customers and advanced multi-domain operations analysis for the Department of Defense. If you enjoy building real systems, thinking through architectural tradeoffs, and communicating clearly with both engineers and non-engineers, you will fit in well.

Requirements

Strong background working in Agile / Scrum teams
Python development experience systems
Full-stack development experience across frontend and backend
Strong SQL database design and utilization skills
Demonstrated focus on efficiency, performance, and optimization
Containerization experience with Docker
GitLab CI/CD pipeline experience
Strong software architecture and design background
Ability to produce and explain UML diagrams and architectural views
Comfort working in Linux environments
Ability to communicate technical decisions clearly to mixed technical and non-technical audiences

Nice To Haves

Orchestration experience with Docker Swarm and or Kubernetes (k8s)
Experience with Cameo Systems Modeler or other MBSE tools
Experience performing or supporting architecture trade studies
Familiarity with nuclear, defense, modeling, simulation, or analytical workflows
Experience supporting secure or regulated environments

Responsibilities

Design, build, and maintain full-stack applications in a fast-moving Agile/Scrum environment
Work across domains including commercial nuclear energy analytics and defense modeling and analysis
Develop and evaluate multiple architectural approaches for a given problem
Clearly articulate cost, performance, scalability, risk, and schedule tradeoffs between design options
Collaborate with technical leadership to make informed architecture decisions
Design and optimize backend services, APIs, and data pipelines
Own your code from design through deployment and ongoing sustainment
Contribute to software architecture standards and long-term technical direction