Steph Colen — VP of Engineering
I build and scale AI platform systems in enterprise environments — and I design the organizations that deliver them. At Appian, I lead multi-team engineering efforts focused on scalable AI capabilities across the platform. I stood up a 0→9 engineer AI platform team, delivering our first production release in three weeks, defined LLM integration patterns (RAG, AWS Bedrock, semantic search), and helped expand enterprise AI adoption in regulated environments (FedRAMP Moderate/High, SOC2, HIPAA, PCI). I care deeply about translating architecture into measurable business leverage. That’s meant reducing LLM latency by 60% in six weeks, expanding GA availability from 55% to 97%, running an $826K vs $76K infrastructure analysis to eliminate ~15% productivity drag across teams, and redesigning a 25-engineer organization around capability-aligned Team Topologies to accelerate delivery. Previously, at Cardless, I served as Engineering Manager and Interim Co-Head of Engineering, leading cross-functional delivery of the Simon American Express credit card nationwide and reorganizing engineering into full-stack squads to improve ownership and predictability. I’m particularly energized by AI-forward, operationally mature environments where platform architecture, organizational design, and measurable impact intersect. I enjoy building systems — technical and organizational — that make ambitious AI ideas practical, reliable, and scalable.
Stackforce AI infers this person is a SaaS expert with a strong focus on AI platform architecture and organizational design.
Location: Washington, DC, United States
Experience: 15 yrs 5 mos
Skills
- Engineering Management
- Platform Architecture
- Artificial Intelligence (ai)
- Cross-functional Team Leadership
- Data Security
- Software Architecture
- Front-end Development
Career Highlights
- Reduced LLM latency by 60% in six weeks.
- Delivered first production release in three weeks.
- Led cross-functional delivery of a nationwide credit card launch.
Work Experience
GitHub
Staff Software Engineering Manager (1 mo)
Appian Corporation
Manager of Software Development — AI Platform & Intelligent Search (2 yrs 1 mo)
Technical Manager of Software Development — Document Extraction & AI DX (1 yr 1 mo)
Technical Manager of Software Development — Record Access Management (5 mos)
Senior Software Engineer — Records & Query Framework (2 yrs 5 mos)
Software Engineer II — Frontend Modernization & Platform Systems (2 yrs 7 mos)
Software Engineer - Frontend Platform & Developer Tooling (1 yr)
Software Engineering Intern (3 mos)
Cardless
Software Engineer (2 mos)
Engineering Manager / Interim Co-Head of Engineering (1 yr)
Boeing
Business Intern (1 yr)
University of Virginia
CS 1110 TA (2 yrs 4 mos)
Main Street Arena
Learn to Skate Instructor (2 yrs 7 mos)
Mytonomy
Intern (2 mos)
MITRE
Technical Summer Intern (8 mos)
Ashburn Ice House
Learn to Skate Instructor (3 yrs)
TIC Summer Camp
Programming Counselor (1 yr 2 mos)
Education
Bachelor of Science (BS) at University of Virginia
at TJ