system_init — ready

Hi, I'm Mathews Shaji

Backend-leaning full-stack developer. Mostly Python and Go, some Rust on the side. I work across AWS, GCP, and Azure — building data pipelines, multi-tenant APIs, and the infra around them. One project I shipped picked up a Guinness World Record.

Explore Work Contact Me
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10+
Projects Shipped
3+
Years Experience
3
Clouds — AWS · GCP · Azure
100%
Production Grade
// 01 — Experience

Professional Journey

Engineering high-performance SaaS platforms, distributed workloads, and warehouse automations.

// 01 — Experience

Professional Journey

Engineering high-performance SaaS platforms, distributed workloads, and warehouse automations.

Dec 2025
Full-Stack Dev (Contract)
Thoughtroutes · Dubai CDA
2024
Contract Full-Stack Dev
Exotic Green · Austria
Nov 2023 — Present
Full-Stack Developer
Thoughtroutes · CloudPositive
2024 — Present
Observability Engineer
Thoughtroutes · Clients
Jun 2023 — Nov 2023
Full-Stack Developer
Xmigrate
May 2023 — Jun 2023
Web Developer Intern
Xmigrate

"Built and deployed the official CDA platform (dcsl.cda.gov.ae) that earned a Guinness World Record for highest online member participation."

Full-Stack Developer (Contract)
Thoughtroutes · CDA, Dubai Government Dec 2025 Remote · Contract
  • Built and deployed the official CDA platform (dcsl.cda.gov.ae) that earned a Guinness World Record for highest online member participation.
  • Developed and Dockerised Next.js app with multi-stage builds for Azure; implemented full i18n (English/Arabic RTL), passwordless magic-link auth, and PostgreSQL schema with audit logging.
Next.jsPostgreSQL SendGridreCAPTCHA AzureDocker

“Sole developer for a full-stack warehouse management system, executing a full-stack migration across multiple phases.”

Contract Full-Stack Developer
Exotic Green — Austria 2024 Remote · Part-time Contract
  • Designed and built a full warehouse management system, executing a full-stack migration across multiple phases.
  • Phase 1: Developed a FastAPI backend (SQLAlchemy, Alembic, JWT) with AWS Cognito, and a Next.js frontend using NextAuth v5 (beta) and Google Sign-On.
  • Phase 2: Added webcam barcode scanning integration via ZXing-JS, Zod schema validation, and redesigned UI with React & shadcn.
  • Frappe Migration: Led transition of the entire codebase to the Frappe framework, deploying with Neon DB (Serverless Postgres), Redis, Nginx, and Frappe's native cookie-based authentication.
FrappeFastAPI Next.jsNeon DB RedisAWS Cognito NginxZod ZXing-JS

“Owned the entire backend of a multi-cloud cost governance SaaS — 20+ ingestion pipelines, secretless onboarding across AWS, GCP, and Azure, and an AI cost-estimation/prediction tool.”

Full-Stack Developer NOW
Thoughtroutes · CloudPositive Nov 2023 – Present Remote · Full-time
  • Architected multi-tenant FastAPI backend with dynamic per-tenant MySQL schema isolation and role-specific dashboards for finance, BU leader, and executive personas.
  • Designed and built a data ingestion engine with 20+ modular pipelines covering AWS (Cost Explorer, Trusted Advisor, Compute Optimiser), GCP (BigQuery billing export), and Azure Cost Management, orchestrated via AWS SQS.
  • Engineered secretless multi-cloud onboarding across all three clouds: AWS (IAM roles, no stored credentials), GCP (service account BigQuery billing export with minimal IAM), and Azure (multi-tenant app registration with admin consent flow — generates a service principal in the client tenant, used in an ARM template to provision necessary resources for cost data access).
  • Built multi-cloud account validation service — AWS checks, GCP BigQuery, and Azure (RBAC, Cost Management, Blob) — deployed with Docker and Terraform.
  • Developed real-time alerting module with OpenSearch monitors, configurable thresholds, and webhook notification channels.
  • Implemented GCP pre-onboarding validator verifying BigQuery billing export access across projects; deployed on Kubernetes with Helm chart.
  • Built proof-of-concept AI cost estimation API using OpenAI with structured JSON output and a multi-step pipeline (QueryParser → ParameterValidator → PromptEnhancer → OutputValidator).
  • Deployed microservices on AWS ECS with RDS MySQL, SQS, and OpenSearch integration; authored provisioning scripts and Ansible playbooks.
  • Managed server infrastructure (AWS EC2 & GCP Compute Engine) using Auto Scaling Groups, Grafana, Loki, and Prometheus.
FastAPISQLAlchemy AWS (ECS/RDS/Cognito/Lambda/SQS/Athena/OpenSearch) GCP (BigQuery/IAM/GKE)Azure (Cost Mgmt/ARM) MySQLDocker TerraformKubernetes/Helm OpenAIGrafana/Loki/Prometheus

"Managing end-to-end observability for multiple client environments — Prometheus alerting, Grafana dashboards, Loki log aggregation, and Beyla eBPF auto-instrumentation."

Infrastructure / Observability Engineer
Thoughtroutes · Client Deployments 2024 – Present Remote · Full-time
  • Managing end-to-end observability for multiple client environments: Prometheus alerting, Grafana dashboards, Loki log aggregation, and Beyla eBPF auto-instrumentation (zero-code overhead).
  • Configured Nginx reverse proxy, SSL termination, and load balancing; maintained Node Exporter host-level metrics (CPU, memory, disk, network).
PrometheusGrafana LokiBeyla (eBPF) Node ExporterNginx Linux

“Contributed to a live VM migration SaaS — FastAPI backend (27+ modules), Keycloak SSO, React Flow topology dashboards, and a polished PDF-invoicing frontend deployed on Cloudflare.”

Full-Stack Developer
Xmigrate Jun 2023 – Nov 2023 Remote
  • FastAPI backend: org/project/blueprint management, target cloud config (AWS/Azure/GCP/OCI), agent registration, action lifecycle, billing modules.
  • Keycloak IAM: OAuth2/OIDC flows, SSO, custom themes, token exchange, PostgreSQL backend.
  • Next.js dashboard with React Flow topology diagrams, ApexCharts/Chart.js visualisations, and Keycloak SSO integration.
  • Built polished SaaS frontend with Radix UI, TanStack Table, Framer Motion animations, and PDF invoice generation via react-pdf; deployed on Cloudflare.
  • Validated and tested live VM migration workflows end-to-end across cloud environments.
FastAPINext.js KeycloakPostgreSQL React FlowRadix UI TanStackFramer Motion Cloudflare

“First production code shipped. Built REST endpoints, mapped relational data models, and assisted API-frontend integration testing.”

Web Developer Intern
Xmigrate May 2023 – Jun 2023 Remote · Internship
  • Developed FastAPI endpoints for the cloud migration backend, mapped relational data models.
  • Contributed to API–frontend integration and end-to-end data flow validation.
PythonFastAPI REST APIGit
  • Built and deployed the official CDA platform (dcsl.cda.gov.ae) that earned a Guinness World Record for highest online member participation.
  • Developed and Dockerised Next.js app with multi-stage builds for Azure; implemented full i18n (English/Arabic RTL), passwordless magic-link auth, and PostgreSQL schema with audit logging.
Next.jsPostgreSQL DockerAzure SendGridreCAPTCHA
  • Designed and built a warehouse WMS, executing full-stack migration across multiple phases.
  • FastAPI and Next.js stack with barcode scanner (ZXing-JS) and Zod validation.
  • Rewrote entire codebase to Frappe, deploying on Neon DB (serverless Postgres), Redis, and Nginx.
FrappeFastAPI Next.jsNeon DB RedisNginx
  • Multi-tenant FastAPI backend with per-tenant MySQL schema isolation, 20+ ingestion pipelines via SQS.
  • Secretless multi-cloud onboarding (AWS IAM roles, GCP service accounts, Azure AD app registration + ARM templates).
  • AI cost estimation using OpenAI; deployed microservices on AWS ECS with Terraform.
FastAPIAWS SQS/ECS GCP BigQueryTerraformOpenAI
  • Prometheus alerting, Grafana dashboards, Loki log aggregation, and Beyla eBPF auto-instrumentation (zero-code overhead).
  • Configured Nginx reverse proxy, SSL termination, load balancing; maintained Node Exporter host-level metrics.
PrometheusGrafana LokiBeyla (eBPF) NginxLinux
  • FastAPI backend (27+ modules), Keycloak SSO, React Flow topology dashboards, PDF invoicing on Cloudflare.
FastAPINext.js KeycloakCloudflare
  • FastAPI endpoints, relational data models, API–frontend integration.
PythonFastAPIREST API
// 02 — Selected Work

Featured Builds

A curated selection covering cloud cost governance, systems tooling, sign language, AI automation, and open source.

Multi-tenant SaaS for cost monitoring across AWS, GCP, and Azure. Per-tenant schema segregation, 20+ cost pipelines via SQS, secretless multi-cloud onboarding, and structured AI cost-estimation using OpenAI.

FastAPIReact SQSOpenSearch TerraformOpenAI

Live block-level VM disk replication tool using eBPF to detect source changes. Multi-channel WebSocket Go dispatcher, lightweight C-shared migration plugins (AWS/Azure/GCP), and a Next.js topology dashboard.

GoeBPF Next.jsKeycloak WebSocketFramer Motion

Full warehouse inventory tracker for an Austrian supermarket chain. FastAPI backend with batch tracking, compliance reports, APScheduler auto-logger, and webcam barcode scanner. Full rebuild with Vitest, Playwright, and Web Vitals monitoring.

FastAPINext.js RedisPostgreSQL ZxingVitest

Official government platform (dcsl.cda.gov.ae) that earned a Guinness World Record for highest online member participation. Dockerised, bilingual (English/Arabic RTL) portal with passwordless auth, event/quiz management, PostgreSQL schema with audit logging, deployed on Azure.

Next.jsTypeScript DockerPostgreSQL Tailwind CSSnext-intl SendGridAzure

Serverless bot using AWS Lambda Durable Functions for tracking medicine lifecycles with state replay and zero external database. Amazon Bedrock Nova Lite parses physical prescriptions via multimodal text/image with free idempotency.

PythonDurable Functions Bedrock NovaLambda Telegram API

HTTP & WebSocket stress testing CLI built in Rust. Real-time terminal dashboard, configurable RPM, latency percentiles (p50/p95/p99), multi-URL YAML pipelines, and JSON reports. Adding per-worker proxy rotation and Tor/onion routing.

Rusttokio reqwestWebSocket CLIYAML
// 03 — Capabilities

Technical Expertise

Proven competency map across frameworks, database engines, clouds, and core platforms.

Python — FastAPI / Flask / Django Frappe Python Framework Go — Gin / SQLX Node.js TypeScript Pandas & PyArrow Headless Chrome (PDF Gen) REST APIs Microservices WebSocket APScheduler Shell Scripting
AWS — ECS · RDS · SQS · Lambda · Cognito AWS — S3 · Athena · OpenSearch · ECR AWS — EKS · ALB · VPC · CodePipeline AWS Lambda (Durable SDK) GCP — BigQuery · GKE · IAM Azure ARM / Multi-tenant App Reg Docker & Compose Terraform CloudFormation Kubernetes & Helm Ansible Serverless Framework GitHub Actions Grafana / Loki / Prometheus AWS CloudWatch Beyla (eBPF Auto-instrumentation) Cloudflare Pages Nginx
PostgreSQL Neon DB (Serverless Postgres) MySQL / SQLAlchemy OpenSearch MongoDB Redis DynamoDB SQLite Multi-tenant Schema Isolation Row-Level Security
Next.js React.js Tailwind CSS / shadcn/ui Radix UI MUI (Material UI) TanStack Table React Flow Framer Motion Zod Validation ZXing-JS (Barcode Scan) OAuth2 / OIDC / JWT AWS Cognito OAuth Keycloak Identity Secretless Architecture
OpenAI SDK Amazon Bedrock — Nova Lite TensorFlow / Keras OpenCV Vision LangChain (learning) Stable Diffusion (learning) Multimodal (text + image) Structured JSON Output
Multi-tenant RBAC Azure AD Admin Consent reCAPTCHA Soft-delete & Audit Logging VPC Peering & ALB WAF Disaster Recovery & Automated Backup Vitest Unit Testing Playwright E2E Web Vitals (LCP/CLS/FID) Git & Linux Jenkins
// 04 — Connect
Available for contracts & full-time roles

Have an idea? Let's build what's next.

Ready to architect your backend systems, microservices, and cloud integrations. Open to contracts, full-time roles, and consulting worldwide.

// Direct channels
Location
Kochi, Kerala, India
// Availability
Open to full-time remote roles
Available for contract projects
Consulting & architecture review
Timezone: IST (UTC +5:30)  ·  Response within 24 h
// Stack fit
FastAPI Go Next.js AWS GCP Azure Terraform Kubernetes OpenAI Bedrock
// Socials