Antilin Stanis — Full Stack Engineer

01

Skills & Technologies

Node.js TypeScript JavaScript Express.js REST APIs GraphQL Microservices React.js Redux Tailwind CSS HTML CSS AWS Lambda AWS S3 AWS SQS AWS SNS AWS SES CloudFront ECS ALB PostgreSQL MySQL MongoDB Redis Event-Driven Arch Distributed Systems Caching Rate Limiting Fault Tolerance Schema Design High Availability Docker CI/CD Git Jest Swagger Agile

02

Work Experience

Centizen Inc. Software Engineer

Feb 2023 — Present · Tirunelveli, Tamil Nadu

Architected and shipped two major cloud-native platforms — an on-demand media processing microservice and a multi-tenant transactional email SaaS — collectively serving 200+ production storefronts at 99%+ uptime.

1M+

Daily requests

Image processing microservice with dynamic resizing, WebP/JPEG/PNG conversion via Node.js

80%

S3 cost reduction

CloudFront CDN caching — lower latency, 90% test coverage, zero regressions in production

1K+

Parallel video uploads

Lambda concurrency for async pipeline — 1080p/720p/480p adaptive output, zero failures

20K+

Emails / day

Multi-tenant email SaaS with custom domains, real-time analytics, 2M+ monthly operations

200+

AWS SES clients

Custom domain support improving deliverability and sender reputation across all tenants

90%

Jest coverage

Unit + integration tests, JWT auth, rate limiting, secrets management via AWS Secrets Manager

Node.jsTypeScriptLambdaS3SQSSNSSESCloudFrontPostgreSQLRedisReact.jsJestDocker

03

Projects

Project 01

ZenBasket

Full Stack Engineer — Centizen Inc.

A multi-storefront e-commerce platform powering 200+ live stores. Built the on-demand image processing microservice handling dynamic resizing and format conversion (WebP/JPEG/PNG) at scale, plus an event-driven video pipeline generating adaptive resolutions for all storefronts. Delivered 80% S3 cost reduction via CloudFront strategy and engineered high-availability backend handling 1M+ daily requests.

Node.jsTypeScriptAWS LambdaAWS S3AWS SQSCloudFrontReact.jsPostgreSQLRedisDocker

Project 02

ZenMail

Full Stack Engineer — Centizen Inc.

A multi-tenant transactional email SaaS supporting API-based delivery, bulk notifications, and marketing campaigns. Architected systems handling 20K+ emails/day. Built a real-time analytics pipeline processing millions of email events (open, click, bounce, delivery) with sub-second latency. React dashboard for campaign creation, scheduling, and analytics — used by 200+ admins with zero data loss across 2M+ monthly operations.

Node.jsTypeScriptAWS SESAWS SNSAWS LambdaReact.jsPostgreSQLRedisGraphQLJest

04

Why Hire Me?

Numbers are already in the other sections. This is about how I work — the habits, mindset, and instincts I bring to a team every day.

I Think in Systems, Not Just Features

Before writing a single line, I ask: what breaks this at 10x load? I naturally think about failure modes, retry logic, bottlenecks, and observability — not because I'm told to, but because I've felt the cost of not doing so in production.

I Communicate Clearly Across the Team

Working in Agile sprints, I've been the person who writes readable PRs, gives useful code review feedback, and flags blockers early. I don't go silent for two days on a hard problem — I surface it, propose options, and move forward together.

I Debug Like a Detective

When something breaks in production, I don't guess — I trace. I've built SNS alerts, DLQ monitoring, and structured logging precisely because invisible failures are the most expensive kind. I make systems observable before they need to be debugged.

I Design for the Next Engineer, Not Just Today

Clean schema design, meaningful abstractions, and documented APIs aren't extras — they're part of the job. I write code that a teammate six months from now can understand without needing to ask me to explain it.

I Pick Up New Tools Fast

I went from backend Node.js work to architecting multi-service AWS pipelines, building React dashboards, and integrating LLM-assisted development workflows — all within a single role. I learn what the project needs, not just what I already know.

I Care About the Product, Not Just the Code

I built a dynamic email template engine so 200+ store admins could run campaigns without engineering help. That's not a backend win — that's a product win. I care about what users actually experience, not just whether the build passes.