How I Operate
Production systems, not just features.
I take ownership across the full lifecycle — not a single layer of the stack.
About
Building production systems,
not just features.
I'm an AI-native full stack software engineer at CreatIT Solutions, building production systems end-to-end — from cloud infrastructure and serverless architectures on AWS to React Native mobile applications shipped to both app stores.
I specialise in backend architecture, cloud engineering, and AI automation. I've reduced API latency by 60%+ using Redis and Celery, designed serverless event-driven pipelines on AWS, and built multi-model LLM systems using the Anthropic Claude API that automatically triage Sentry errors and generate root-cause PRs.
I take full ownership — from architecture and development to CI/CD deployment and ongoing production support.
Anthropic Claude API — multi-model pipelines (Haiku + Sonnet), structured tool use, prompt engineering, and production automation systems.
20+ AWS services in production — Lambda, ECS, Fargate, Step Functions, SQS, EventBridge, Cognito, WAF, CloudWatch, and more.
React Native for iOS and Android — end-to-end from architecture through App Store and Play Store production release.
Django REST, FastAPI, Node.js — 60%+ latency reduction, Redis caching, Celery async, and Stripe/Square/PayHere payment integrations.
Open to freelance contracts, long-term partnerships, and startup engagements. I work with a small number of clients at a time to give every project full attention.
Selected Work
Five systems, built end to end.
Real problems. Production systems. Each one a full case study — problem, architecture, and outcome.
AutoFix Pipeline
Sentry Error
Webhook
Secret Filter
Middleware
Claude Haiku
File Discovery
Claude Sonnet
Fix Generation
Draft PR
Bitbucket
AI Developer Automation System
Multi-model Claude pipeline that automatically triages Sentry errors and drafts root-cause PRs.
Vehicle Spare Parts Platform (M-Auto-Zone)
Full-stack e-commerce for automotive parts — iOS & Android with PayHere payment integration.
Orivet Mobile App
Veterinary microchip management and pet care mobile platform with Stripe subscription billing.
Good afternoon
Pradeepa
Well Organized
Electricity bill due today
Finance Vault · LKR 5,000
Voice Languages
2
Vehicles
4
Reminders
5
Vaults
Voice Reminder & Life Organizer
Advanced React Native reminder app — TTS voice alerts in 20+ country-language voices, Finance Vaults, vehicle tracking, and Firebase real-time sync.
Strangler-Fig Migration
Custom DB Router
Django
New Primary DB
Legacy Prod DB (read-only)
Read Replica (optional)
Breeder Stats Platform — Orivet v3 Rebuild
Full-stack rebuild for a genetics-testing SaaS — a 45+ endpoint Django API and its Next.js customer/admin dashboard, both shipped end to end.
Also Shipped
Student Management System
Web ApplicationComplete student platform with attendance, academic records, RBAC, and Stripe fee collection.
AWS Serverless Email Pipeline
Cloud ArchitectureFully serverless event-driven email architecture — decoupled, fault-tolerant, auto-retrying.
Glass Vials — Color Puzzle Game
Mobile GamePublished React Native color-sorting puzzle game — level packs, star ratings, animated glass vial mechanics, zero native game engine.
PDF Report Generation Server
Backend ServiceNode.js REST API on AWS EC2 generating structured multi-page PDF reports triggered by Firebase events.
Orivet Backend Platform
Backend ServiceBackend services for a production animal-genetics SaaS — REST APIs, triple payment-provider billing, and async processing via Django Signals.
AI Automation Lab
Anthropic Claude API in production.
Two systems built at CreatIT Solutions using multi-model Claude pipelines — Haiku for fast, cheap discovery; Sonnet for deep reasoning and code generation. Hover or tap a stage below for what it actually does.
Sentry AutoFix
Automated error triage → draft PR
Sentry webhook fires on each new error. A Django middleware strips all credentials before touching the LLM. Claude Haiku maps the affected codebase (cheap). Claude Sonnet analyses the root cause and generates a fix. A draft PR opens in Bitbucket automatically — no human in the loop until review.
DevAssist
Natural language → working code → PR
Developer describes a feature or fix in plain text or voice. Claude Haiku maps relevant files in the repository. Claude Sonnet generates production-quality code with context from those files. A draft PR is auto-committed to the branch — the developer reviews and merges.
Pipeline Design Principles
Haiku
File discovery — fast, cheap token use
Sonnet
Root-cause analysis + fix generation
Secret Filter
Zero credentials reach the LLM
Draft-only PRs
Human review always required
Engineering Depth
Systems I design
and ship end-to-end.
Not just frontend. Not just backend. Select a layer to see what I actually build there.
Layer 01 / 8
Product Experience
The interface layer — fast, accessible, and built with the same care as the systems behind it.
Technology Stack
What I build with.
A clear view of the technologies I use daily and the problems I apply them to — no inflated skill meters.
AI / LLM
Core
Also experienced with
Frontend
Core
Also experienced with
Backend
Core
Also experienced with
Mobile
Core
Also experienced with
AWS Cloud
Core
Also experienced with
DevOps & DB
Core
Also experienced with
I pick the right tool for the job — not the trendiest one.
Experience
3+ years of production impact.
Full Stack Software Engineer
Backend-focused full-stack engineer with 3+ years of production experience building and scaling Python/Django REST APIs on AWS — comfortable owning services end-to-end, from API and schema design through authentication, payments, containerization, and CI/CD.
Architected and scaled Django REST Framework APIs powering business-critical workflows across multiple client platforms, cutting response latency 60%+ through Redis caching and Celery-based async task offloading
Designed event-driven, serverless AWS architectures (Lambda, SQS, EventBridge, Step Functions) for asynchronous email and workflow processing, removing server-management overhead and improving fault tolerance through automatic retries
Containerized services with Docker and deployed to AWS ECS/ECR/Fargate; built CI/CD pipelines with GitHub Actions and AWS CodePipeline, achieving zero-downtime releases
Engineered secure payment processing by integrating Stripe, Square, and PayHere into live platforms handling real-money transactions
Implemented authentication and access control using AWS Cognito, IAM roles, and Secrets Manager; administered PostgreSQL and multi-database architectures
Delivered a React Native mobile commerce application (Android & iOS) end-to-end, including Firebase push notification integration — full-stack ownership beyond the backend
Built AI-assisted engineering tooling on the Anthropic Claude API — automated Sentry error triage and code-fix generation, with security-first secret-filtering middleware
Operated within Agile/Scrum teams, running sprint planning and peer code reviews across cross-functional delivery
Services
What you can hire me to build.
End-to-end delivery across the full product stack — or focused work on the layer your team needs most.
Full Stack Development
Complete web applications — Django/FastAPI backends, React/Next.js frontends, PostgreSQL, and cloud deployment end-to-end.
Backend API Architecture
Scalable Django REST and FastAPI systems with Redis caching, Celery workers, RBAC, and a 60%+ latency reduction track record.
React Native Mobile
Cross-platform iOS and Android apps shipped to both stores — push notifications, real-money payments, offline sync.
AWS Cloud & DevOps
20+ AWS services — Lambda, ECS, Fargate, SQS, EventBridge, Step Functions, CI/CD pipelines, zero-downtime deployments.
AI / LLM Automation
Anthropic Claude API pipelines — multi-model systems (Haiku + Sonnet), structured tool use, webhook-driven automation, security-first design.
Payment Integrations
Stripe, PayHere, and Square — subscription billing, webhook handling, refunds, and PCI-compliant transaction flows.
Performance Optimisation
Redis caching, Celery async offloading, query tuning, and profiling — proven 60%+ API response time improvement in production.
MVP Development
Fast, focused builds for founders — working product in weeks with architecture that holds beyond the MVP.
Have a specific project in mind?
I work with a small number of clients at a time to ensure every project gets full attention.
How I work
Principles I build every project on.
Clean architecture
Readable, modular code from Django API to React Native component — built for handover and longevity, not just the deadline.
Clear communication
Regular updates, async-friendly, and direct. Sprint planning, code reviews, and cross-functional delivery in Agile teams.
Measurable results
I optimise for business impact — 60%+ API latency reduction, zero-downtime deploys, and reliable production uptime.
End-to-end ownership
Architecture to deployment to ongoing support — I own the full cycle, not just one layer of the stack.
Security-first
JWT, OAuth, RBAC, Cognito, WAF, Secrets Manager, and secret-filtering middleware — baked in from day one.
Production mindset
I build for scale and resilience from the start — not MVP shortcuts that become expensive technical debt.
Long-term partnership
Available beyond delivery for bugs, performance improvements, new features, and infrastructure scaling.
Deadline-driven
Honest scoping and milestone commitments. I deliver on time because I plan before I build.
Get in touch
Have a system worth building?
Whether you're launching a product, modernizing a platform, or automating an engineering workflow, let's discuss what production-ready looks like.