DS
Diwesh Saxena

Services

Comprehensive CTO and AI Platform Architecture services including web & mobile app development to help you build, scale, and optimize your technology infrastructure.

Fractional CTO
AI Product Strategy
Platform Architecture
Cloud & DevOps
Compliance & VAPT
Team Coaching
Web & Mobile Development

Building outcomes, not artifacts. I focus on small, end-to-end loops—ingest → infer → evaluate → iterate—with guardrails and observability from day one.

Core Services

Fractional CTO

Align tech with KPIs; ship decisions, not decks.

Key Outcomes:

  • Define a 90-day roadmap tied to revenue, cost, or reliability KPIs
  • Stand up the right rituals (PRDs, ADRs, design reviews) to raise velocity
  • Unblock hiring and vendor choices with clear, auditable criteria

Tools & Deliverables:

ADR templates
KPI model
Risk register
Roadmap & OKRs

AI Product Strategy

From prompt to production with evals & guardrails.

Key Outcomes:

  • Use-case scoring and cost/latency budgets
  • Evaluation harness (accuracy, bias, hallucination, drift)
  • Human-in-the-loop, red-team tests, rollback playbook

Tools & Deliverables:

RAG pipelines
Vector DBs
Prompt/versioning
A/B eval dashboards

Platform Architecture

Design modular services with clear SLAs and cost/perf budgets.

Key Outcomes:

  • Domain boundaries that map to teams and roadmaps
  • Observability-first services with golden signals and SLOs
  • Secure-by-default interfaces and data contracts

Tools & Deliverables:

ADR/DDD
REST/GraphQL
gRPC
Async queues
API gateways

Cloud & DevOps

Zero-downtime moves, IaC, and pragmatic reliability.

Key Outcomes:

  • Blue/green or canary releases with automated rollbacks
  • Terraform/IaC baselines; cost guardrails and alerts
  • Incident response playbooks and postmortems

Tools & Deliverables:

AWS/Azure
Kubernetes
Terraform
Grafana/Prometheus
ELK

Compliance & VAPT

Close gaps fast—prove it with evidence packs.

Key Outcomes:

  • Map controls (ISO/GDPR) → implement → collect evidence
  • Threat modeling and VAPT remediation backlogs
  • Data privacy by design (DPIA, retention, consent)

Tools & Deliverables:

ISO 27001 controls
GDPR DPIA
SIEM alerts
Jira evidence packs

Team Coaching

Rituals, standards, and feedback loops that raise velocity.

Key Outcomes:

  • Pair reviews and design clinics; fewer reworks
  • Definition of Ready/Done that sticks
  • Career ladders and growth paths that retain talent

Tools & Deliverables:

Engg handbook
Code review checklists
Blameless postmortems

Web & Mobile App Development

Cross-platform apps that scale from MVP to enterprise.

Key Outcomes:

  • Responsive web apps with modern frameworks (React, Vue, Angular)
  • Native and cross-platform mobile apps (React Native, Flutter)
  • Progressive Web Apps (PWA) for seamless user experience
  • API-first architecture with robust backend services

Tools & Deliverables:

React/Next.js
React Native
Flutter
Node.js
TypeScript
REST/GraphQL APIs

Supporting Skills

A I/ L L M Ops

RAG architectures
Prompt versioning & testing
Eval harnesses (quality/latency/cost)
Hallucination/bias checks
Agents with tool-use & timeouts
Caching & batching to control spend

Languages Frameworks

Python
.NET/Core
Node.js
React/Next.js
TypeScript
JavaScript/ES6+
C#
Java
Go
Rust

Web Technologies

React/Next.js
Vue.js/Nuxt.js
Angular
Svelte/SvelteKit
HTML5/CSS3
Tailwind CSS
Sass/SCSS
Webpack/Vite
PWA
WebAssembly

Mobile Technologies

React Native
Flutter
Ionic
Xamarin
Swift (iOS)
Kotlin (Android)
Expo
Cordova/PhoneGap
Native iOS/Android
Cross-platform development

Hybrid Technologies

Electron
Tauri
Capacitor
Cordova
Ionic
React Native Web
Progressive Web Apps
Desktop app development
Cross-platform solutions

A I Technologies

OpenAI GPT/Claude
LangChain
Vector Databases
RAG (Retrieval Augmented Generation)
Machine Learning
Deep Learning
TensorFlow
PyTorch
Scikit-learn
Computer Vision
NLP
LLM Fine-tuning
AI Agents
Prompt Engineering

Cloud Infra

AWS (EKS, RDS, S3, CloudFront)
Azure (AKS, App Service, Cosmos)
Kubernetes
Terraform
CI/CD (GitHub Actions)

Data Observability

PostgreSQL
Redis
Grafana/Prometheus
ELK/Opensearch
Feature stores & analytics pipelines

Security Compliance

OAuth2/OIDC, SSO
Secrets management
ISO 27001
GDPR
VAPT remediation

Communication

Executive storytelling
Docs-as-code
Stakeholder alignment
Workshops & training