Vipin V Kartha

/vi-pin/

Senior Backend Engineer at Babbel

Berlin, Germany

About

With over 12 years of hands-on experience in developing robust, large-scale distributed backend systems, I am passionate about using new technologies and methods to build scalable and extensible applications. My domain experience spans EdTech, E-commerce, IoT and Healthcare, which helps me bring practical solutions to different industries.

As a polyglot developer, I believe in selecting the right technology for each specific challenge.

Currently, I am a Senior Backend Engineer at Babbel. I work on the company's internal AI platform, which helps teams build and run AI agents securely, and on authentication services in the Identity team.

Skills

Programming

Node.js
TypeScript
Golang
Ruby on Rails
C++

AI Platform

AWS Bedrock AgentCore
MCP
Langfuse
OpenTelemetry

Identity

OAuth 2.0
OpenID Connect
SAML
Okta

Back-end

REST API
GraphQL
Express
TypeORM
Elasticsearch
Kinesis
Firebase
MQTT

DevOps

AWS
ECS Fargate
Lambda
SQS
SNS
CloudWatch
Terraform
Docker
New Relic

Database

MySQL
DynamoDB
Redis

Experience

Babbel GmbH

Berlin, Germany

Senior Backend Engineer, AI Platform

Jun 2026 – Present

Working on the AI platform team, using TypeScript (Node.js), AWS, Terraform, Langfuse and OpenTelemetry.
Developing and maintaining a platform that lets other teams build and run AI agents securely.
Building and maintaining the platform's AWS infrastructure with Terraform, including monitoring and alerts.
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Leading multiple initiatives in the team, including:
- Agent platform, from design to production
- AI agent that triages customer-support bug reports
- MCP connectors for the company's AI tool gateway

Senior Backend Engineer, Identity

Jul 2022 – Present

Working on the authentication team, using Node.js (TypeScript), Golang, Ruby on Rails, AWS, Docker, DynamoDB and MySQL.
Developing and maintaining microservices to improve the scalability and performance of authentication services.
Collaborating closely with the infrastructure team.
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Led multiple initiatives in the team, including:
- CAPTCHA implementation for the entire backend
- Authentication restriction management for B2B customers
- Session management for web and mobile login
- Deprecation of the legacy home app

KeyValue Software Systems

Kochi, India

Senior Software Engineer, Staff Software Engineer

Apr 2020 – Jun 2022

Core member of the team building a B2B product for small retail owners across Indonesia.
Built Node.js (TypeScript) and Golang microservices on AWS, exposing REST and GraphQL APIs.
Deployed services with AWS CodePipeline and monitored them with AWS CloudWatch.
Built asynchronous processing with AWS SQS and S3.

Siemens Technology and Services

Bangalore, India

Software Engineer (L2)

Nov 2018 – Apr 2020

Backend developer on an IoT project for industrial devices, working in C, C++ and Node.js.
Worked with the industrial protocols HART, Modbus and OPC UA.
Implemented several REST APIs.
Worked on the physical layer for hardware communication over RS-485 and RS-232 using Modbus.

CitiusTech Healthcare Technology Pvt Ltd

Mumbai, India

Software Engineer

Sep 2017 – Nov 2018

Fixed defects and built enhancements for a healthcare image viewer application, using VC++ and MFC.

HCL Technologies (formerly Geometric Limited)

Pune, India

Software Engineer

Oct 2016 – Jul 2017

Worked on the development of the DFMPRO product, using VC++ and CAA V6.
Integrated DFMPRO with the CATIA CAD software.

Aricent Technologies

Chennai, India

Software Engineer

Sep 2014 – Sep 2016

Maintained and developed a customer product that decodes and analyses live traffic.
Worked in C++ on both Linux and Windows.

Education

B.Tech. in Computer Science and Engineering

TKM College of Engineering, Kollam, India

2010 – 2014

Awards

2019 Spot Award for Best Performance, Siemens Technology and Services
2014 Best Project Award, Aricent Training Program