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AJ
Available for select fractional CTO and advisory roles

Turning ambitious product visions into battle-tested, high-scale architectures

Fractional CTO and system architect for seed to Series B teams. I diagnose bottlenecks, design high throughput pipelines, and ship production AI across fintech, edtech, healthtech, and e-commerce.

CTO at Chasegeek.com since 2022
6+ years shipping production systems
4 industries at scale
15+ core technologies

System architecture

Client Tier
ReactFlutter
API Gateway
RESTGraphQL
AI Orchestration
LLMRAG
Services Layer
Node.jsPython
Data Layer
PostgreSQLRedis
Cloud
AWSK8s
Yourstartupdeservesarchitecturethatscaleswithyourambition,notarewriteevery18months.

Capabilities

What I build and lead

Fractional CTO leadership

Engineering roadmap, hiring strategy, and technical governance for teams that need senior leadership without a full time executive hire.

  • Technical roadmap and milestone planning
  • Engineering hiring and team mentorship
  • Code review standards and governance
  • Board and investor technical communications

AI orchestration and LLM systems

Production grade retrieval augmented generation, agentic workflows, and inference optimization that actually ship to users.

  • RAG pipeline architecture and deployment
  • Agentic workflow design and orchestration
  • Model selection, fine tuning, and cost optimization
  • Evaluation frameworks and monitoring

High throughput web and mobile

Low latency React, Next.js, and Flutter/Kotlin architectures built for millions of concurrent users and sub-second response times.

  • Next.js and React architecture at scale
  • Flutter and Kotlin native mobile systems
  • API design for high concurrency
  • Performance profiling and optimization

Cloud infrastructure and DevOps

AWS, Kubernetes, and Docker orchestration with automated CI/CD, security hardening, and cost governance.

  • AWS infrastructure design and optimization
  • Kubernetes cluster architecture
  • CI/CD pipeline automation
  • Security audit and compliance hardening

Systems

Architecture across industries

Fintech

Challenge

A Series A payments platform needed to process 12,000+ transactions per second with PCI DSS compliance and sub-200ms settlement latency.

Solution

Designed a distributed event driven architecture using Kubernetes autoscaling, Redis caching, and PostgreSQL partitioning. Integrated real time fraud detection using a custom ML scoring pipeline.

Node.jsKubernetesPostgreSQLRedisPythonAWS

Process

Engineering approach

A structured framework to translate complex requirements into robust, maintainable systems.

01

Architecture diagnosis

Deep code and cloud review to identify bottlenecks, security gaps, and scaling risks in your current system.

02

Technical blueprint

Scalable milestone plan with clear architecture decisions, technology selection, and resource requirements.

03

Hands on execution

Direct architecture delivery with team mentorship, code review, and knowledge transfer at every stage.

04

Scale hardening

Production resilience testing, security audit, performance optimization, and structured handover documentation.

Stack

Technical Competencies

0+
Years building for the web
0+
Years leading engineering as CTO
0
Industries shipped in
0+
Core technologies

Languages

PythonJavaScriptJavaKotlin

Frontend

React.jsNext.jsWeb Development

Backend and APIs

Node.jsREST API Integration

Mobile

FlutterAndroid SDKKotlinJava

Cloud and DevOps

Amazon Web Services (AWS)DockerKubernetes

Leadership

Technology LeadershipTeam Mentorship
FAQ

Frequently Asked Questions

I typically work 2 to 3 days per week embedded with your team. That includes architecture decisions, code reviews, sprint planning, and direct mentorship. The engagement starts with a 30 minute diagnosis call to understand your stack and goals.

Let's build your next architecture

Open to fractional CTO engagements, architecture advisory, and select technical partnerships.