Principal Architect &
Fractional Engineering Leader
Principal Architect and Fractional Technical Leader. I help scaling teams build infrastructure that holds under pressure, and stabilise systems that have already broken.
What I Do
Senior engineering leadership across the full delivery lifecycle
Fractional Head of Engineering
Taking ownership of engineering delivery and team velocity. I streamline development processes, resolve roadmap friction, and bridge the gap between technical execution and business goals.
Principal Backend Engineer
Hands-on technical problem solving. I drop into complex environments to untangle technical debt, stabilise critical infrastructure, and ship resilient backend systems, regardless of your current stack.
Interim Tech Lead
Guiding engineering teams through critical transitions or difficult migrations. I provide the senior technical oversight needed to unblock mid-level developers and get delayed projects across the finish line.
Technical Due Diligence
Structured assessment of codebase, infrastructure, and engineering team ahead of acquisition, investment, or partnership.
Greenfield Builds
From blank canvas to production: architecture, implementation, and operational runbook for new products and platforms.
Recovery & Stabilisation
Diagnose and resolve performance degradation, reliability failures, and accumulated architectural debt under pressure.
Stack
What I build with
Backend
- Go
- .NET / C#
- Node.js
Frontend
- Next.js
- Astro
- React
Cloud
- GCP (primary)
- AWS
- Azure
Infrastructure
- Terraform
- Cloud Run
- Docker
- GitHub Actions
Data
- PostgreSQL
- Firebase
- Redis
About
13 years building distributed systems and cloud infrastructure. I work with scaling startups and established teams who need senior engineering leadership without the full-time hire.
linkedin.com/in/nicholas-peglerContact
Let's talk
If you're looking for a Principal Architect or Fractional Technical Leader, book a call or send an email. I read everything.