CKThe CK Dev
Senior Software Engineer

I build softwarethat survives production.

I’m Chaitanya Kanzarkar — a backend-heavy full-stack engineer working across architecture, APIs, real-time systems, integrations, DevOps, infrastructure and product delivery. I enjoy owning difficult problems from the first discussion to production deployment.

Explore my work →Let’s talkResume ↗
About

More than just a backend developer.

I’m most effective when a problem crosses boundaries. I can design the backend, discuss trade-offs with stakeholders, integrate services, review frontend flows, handle deployment, debug infrastructure and help the team ship with confidence.

01 / Backend

Scalable services & clean architecture

Production-grade APIs, modular NestJS systems, asynchronous workloads, caching, queues, authentication, data pipelines and reliable integrations.

Node.jsNestJSExpressGraphQLREST APIsRabbitMQRedisBullMQ
02 / Product

Full-stack delivery

Enough frontend depth to build and ship functional product experiences, collaborate effectively with UI teams and own features end-to-end.

ReactNext.jsAngularIonic
03 / Platform

Infrastructure is part of the product.

Comfortable with deployment pipelines, Dockerized environments, reverse proxies, Linux servers, object storage and production troubleshooting.

DockerAWSNginxLinuxJenkinsCoolifyPortainer
04 / Ownership

Technical leadership without losing hands-on depth

Client discussions, technical consultation, requirement breakdown, architecture decisions, code reviews, mentoring junior developers, delivery planning and production support.

Experience

Built in real-world environments.

Fintech, agency work, real-time systems, integrations, client-facing delivery and production infrastructure.

2024 — 2026
Senior Software Developer
Zitics Pvt Ltd • Pune
  • Worked on a fintech platform using NestJS, MySQL, Redis, RabbitMQ and AWS.
  • Built a centralized file server and background workflows for financial-data processing.
  • Developed an internal NPM utility for Excel-like financial sheet calculations.
  • Mentored junior developers, reviewed code and contributed to backend architecture decisions.
2022 — 2024
Software Developer
CXR Agency • Amravati
  • Built full-stack applications and APIs using Node.js, TypeScript, Next.js, AdonisJS and Laravel.
  • Worked across integrations, deployments, Nginx configuration and server management.
  • Contributed throughout the delivery lifecycle across multiple client projects.
2020 — 2022
Freelance Developer
Independent
  • Handled projects from client discussions and requirements to implementation and deployment.
  • Built custom web/application solutions while developing strong client-facing ownership.
Selected Work

Projects that show range.

A mix of fintech, real-time systems, commerce and sustainability products.

PROJECT 01

Fintech Corporate Lending Platform

Backend architecture, asynchronous financial-data workflows, file processing, internal tooling and production-focused engineering.

NestJSRabbitMQRedisMySQLAWS
PROJECT 02

Eden — Real-Time Game Backend

Scalable multiplayer backend focused on player state, low-latency communication and real-time synchronization.

Node.jsMongoDBSocket.IO
PROJECT 03

Dashborde — Commerce Platform

Custom backend APIs, payment gateway integration and vendor settlement workflows built around Strapi and Next.js.

StrapiNext.jsPayments
PROJECT 04

Terralab Insets

Carbon-emission tracking product with scalable APIs and frontend/backend integration focused on product performance.

AdonisJSNext.jsREST APIs
Technical Range

A stack built around solving problems.

Backend
Node.jsNestJSExpressTypeScriptGraphQLRESTWebSocketsRabbitMQRedisBullMQPrisma
Databases
PostgreSQLMySQLMongoDBMSSQLSQLitePouchDBIndexedDB
Frontend
ReactNext.jsAngularIonicCapacitor
Cloud & DevOps
AWSDockerNginxLinuxJenkinsCI/CDECRPortainerCoolifyMinIO