Fujah
Gabriel
Engineering leader & startup co-founder turning technical vision into resilient systems and high-velocity teams — from fintech scale to agentic AI.
Focus
Engineering Leadership & AI Systems
Track Record
Co-founded Vella Finance (Acq. 2023)
Experience
9+ Years Scaling Products & Teams
Availability
Leadership, Advisory & Consulting
Bridging technical vision with execution, scale, and high-performing teams.
Over the last 9+ years, I've operated across the entire engineering continuum — from architecting core payment rails as co-founder at Vella Finance (acquired in 2023) to managing cross-functional squads across fintech, health-tech, e-commerce, and agentic AI systems.
My leadership philosophy centers on three pillars: clarity over bureaucracy, radical ownership, and rapid de-risking. I partner with executive and product teams to translate company objectives into actionable technical roadmaps, establish high-velocity SDLC standards, and create an environment where engineers are challenged and supported to take complete ownership of the systems they build.
I don't hoard architectural decisions — I coach my squads to evaluate trade-offs, champion modern tooling (from zero-touch Maestro mobile automation to product-wide PostHog observability), optimize infrastructure, and take pride in documenting and publishing their engineering breakthroughs.
9+
Years Leading & Building
2
Startups Co-founded
2023
M&A Acquisition Exit
12+
Production Systems Shipped
Disciplines & competencies
How I lead engineering organizations — combining people leadership, systems architecture, and business execution.
Engineering Leadership & Team Scale
Hiring exceptional talent, structuring high-autonomy squads, driving DORA metrics, and mentoring engineers into Senior and Staff leaders.
Systems Architecture & Scale
Designing high-availability distributed systems, fintech payment rails, cloud infrastructure (AWS/GCP), and resilient CI/CD pipelines.
Applied AI & Data Governance
Operationalizing LLMs, agentic orchestration, and MCP servers with strict local security and PII guardrails for production enterprise workloads.
Product Strategy & Technical Delivery
Partnering with founders and product executives to de-risk roadmaps, manage technical debt, and translate business vision into delivered ROI.
AI-Augmented Architecture & SDLC Playbook
How I systematically integrate AI across systems design, architecture stress-testing, and high-velocity team delivery — combining extreme leverage with zero-trust security.
The Leadership Thesis
Leverage for execution · Rigor for judgment
Modern engineering leadership isn't about replacing engineers with AI — it's about removing cognitive friction so squads operate at peak architectural clarity. AI generates hypotheses, stress-tests boundaries, and scrunches boilerplate; engineering leaders own correctness, data integrity, and system resilience.
Adversarial Sparring Partner
Use LLMs to aggressively stress-test distributed edge cases, single points of failure, and trade-offs before a single line of code is written.
Zero-Trust Data Protection
Strict local boundary enforcement — credentials, client PII, and sensitive business logic are intercepted and redacted on-device before external routing.
Spec-Driven Human Gatekeeping
Rigorous system specifications and schema contracts guide agentic execution; human engineering leaders retain 100% ownership of correctness and safety.
Systems & Architecture Design
Transforming abstract business goals into hardened, battle-tested distributed system designs through adversarial AI modeling.
Key Workflows
- Adversarial Trade-off Sparring: Challenging CAP theorem trade-offs, caching topologies, and partition risks with fine-tuned prompts.
- ADRs & RFC Synthesis: Accelerating formal Architecture Decision Records by synthesizing stakeholder constraints and failure modes.
- Schema & Contract Synthesis: Generating formal OpenAPI, protobuf, and SQL schemas with rigorous constraint validation.
SDLC Acceleration & Quality Gates
Compressing the concept-to-deployment cycle while expanding test surface area and eliminating boilerplate fatigue.
Key Workflows
- Spec-Driven Scaffolding: Utilizing structured prompts and agentic harnesses to scaffold domain scaffolding and typed SDK clients.
- Exhaustive Edge-Case Testing: Automatically generating high-coverage fuzz tests, race-condition assertions, and boundary simulations.
- Pre-Review Architectural Diffs: Synthesizing breaking-change summaries and dependency impacts before human PR review.
Security, Governance & Privacy
Establishing strict enterprise guardrails so engineering squads innovate at 10× speed without compromising corporate IP or customer data.
Key Workflows
- Local MITM Proxy Interception: Enforcing on-device proxies (PIIGuard AI paradigm) to redact API keys and PII before leaving the machine.
- Synthetic Staging Datasets: Generating realistic, privacy-compliant mock datasets for load testing without touching real customer records.
- IP & License Compliance Audits: Programmatically validating third-party dependencies and model outputs against enterprise licensing policies.
Telemetry, SRE & Incident Response
Turning noisy telemetry streams into rapid root-cause identification and institutional knowledge capture.
Key Workflows
- Anomaly Pattern Clustering: Analyzing distributed traces and error clusters during outages to isolate faulty services in minutes.
- Contextual Runbook Surfacing: Automatically retrieving historical incident resolutions and relevant architecture diagrams during P1 alerts.
- Blameless Post-Mortem Synthesis: Compiling incident timelines across Slack, Sentry, and deployment logs into structured post-mortems.
Empowering teams to own architecture & delivery
True engineering leadership is measured by the caliber, autonomy, and ownership of your team. Here are high-impact architectural migrations, automation pipelines, and observability initiatives I introduced and guided my squads to own.
“I don't hoard technical decisions. I challenge my team to evaluate trade-offs, lead migrations, and take pride in documenting their architectural wins.”
When engineers are supported with high standards, clear context, and psychological safety, they stop waiting for tickets and start owning outcomes. Two of these initiatives were written and published by direct team members.
Zero-Touch Mobile Automation with Maestro
Role: Introduced & Mentored SquadThe Challenge: Manual QA testing was bottlenecking mobile banking releases and risking UI regressions across diverse Android device configurations.
Leadership Impact: Introduced Maestro to the mobile team and coached engineers to architect a zero-touch pipeline executing Maestro UI test flows on real physical Android devices via AWS Device Farm for every pull request and nightly against production.
Mobile Maestro Automation: Automating Mobile UI Testing on Real Devices with AWS Device Farm
By Toba Oyetola (DevOps Engineer) · Sep 2026
Frontend Architecture & CDN Edge Optimization
Role: Architectural Guidance & ReviewThe Challenge: Client React applications were served directly from monolithic Node.js ECS containers, burning unnecessary compute and adding latency to static assets.
Leadership Impact: Facilitated an architectural overhaul offloading static client assets to Amazon CloudFront global edge caching backed by S3, while reserving ECS Fargate purely for API workloads — cutting cloud compute costs and accelerating global load times.
Optimize a Client React App Deployment with S3 + CloudFront with ECS server.js Backend
By Toba Oyetola (DevOps Engineer) · Oct 2025
Product & Engineering Telemetry with PostHog
Role: Initiative Lead & GovernanceThe Challenge: Onboarding drop-offs and KYC frictions in our banking app were opaque, creating misaligned finger-pointing between Product and Engineering.
Leadership Impact: Introduced PostHog organization-wide, establishing shared event telemetry, conversion funnels, and session replays. Empowered engineers to autonomously diagnose edge-case errors, verify client UX friction, and resolve onboarding bugs in production within hours.
Company-wide analytics, friction monitoring & session telemetry
Integrated across Product & Mobile Engineering
Systems & Products
A track record of production systems — from venture-backed fintech infrastructure to consumer products, AI security tooling, and mobile platforms.
Architecture, leadership & systems
Leadership & Delivery
Culture · velocity · metrics- Engineering Culture & Team Mentorship
- DORA Metrics & Release Velocity
- Technical Hiring & Interview Calibration
- Sprint Cadence & Cross-Functional Roadmapping
- Psychological Safety & Healthy On-Call
- Architecture Decision Records (ADRs)
- Code Review Standards & Quality Gates
- Incident Response & Blameless Post-Mortems
Systems & Architecture
Scale · reliability · governance- Distributed Systems Architecture
- Fintech Payment Rails & Multi-Currency Settlement
- High-Availability & Zero-Downtime Deployments
- REST, GraphQL & Event-Driven Systems
- Database Modeling (PostgreSQL, Redis, Supabase)
- Zero-Trust Security & Data Governance
- Microservices & Domain-Driven Design
- Pragmatic Build vs. Buy Evaluation
Applied AI & Security
Agents · proxies · enterprise guardrails- Model Context Protocol (MCP) Architecture
- On-Device MITM Proxy & Local Interception
- Agentic Automation & Tool-Calling Orchestration
- Enterprise PII Masking & Data Leak Prevention
- Multi-Modal Vision & Speech Pipelines
- LLM Integration (Claude, OpenAI, Gemini)
- Prompt Security, Redaction & Safety Gates
Cloud, Infrastructure & Core
DevOps · observability · languages- AWS & GCP Cloud Architecture
- Docker & Container Workflows
- CI/CD Pipelines (GitHub Actions, CircleCI)
- Observability & APM (Sentry, PostHog, New Relic)
- TypeScript, Node.js, Go & Python
- Swift / SwiftUI (iOS) & React Native
- FastAPI & Modern Backend Frameworks
- Infrastructure Reliability & Cost Optimization
Giving back to the community
PIIGuardAI
A macOS menu bar app that intercepts and blocks or auto-redacts PII and secrets before they reach Claude, ChatGPT, Gemini, and CLI AI agents.
MaskPII
Detect and mask personally identifiable information (PII) from text, keeping sensitive data safe.
Lumiveo
An open-source project exploring media and content experiences with clean, reusable building blocks.
app-screenshot-generator
Generate polished, App Store-ready screenshots for your mobile apps quickly, without fighting design tools.
Notes from the build
Essays and field notes on engineering leadership, AI systems, systems optimization, and product delivery.
A macOS App That Stops You Accidentally Handing Your Secrets to AI Agents
The story of building PIIGuard AI: a native macOS menu bar app that intercepts and redacts sensitive PII, API keys, and credentials before they reach AI assistants and coding agents.
Building a Custom MCP Server With Node.js: A Developer's Guide
Build a custom Model Context Protocol (MCP) server using TypeScript and modern tooling. Extend AI models with custom tools for user data management.
Launching a Product Feature
Insights and lessons learned from launching a new product feature — the process, challenges, and strategies for successful releases.
The Art of Thoughtful Optimization: Engineering Principles as a Software Engineer
Engineering principles for thoughtful optimization — balancing performance, maintainability, and user experience.
Available for engineering leadership, advisory & select initiatives
Let's build
together.
Scaling an engineering organization, architecting resilient systems, or de-risking high-impact AI products? I'm one conversation away.