Karthikkannan Maruthamuthu profile photo 1 on Tal

Karthikkannan Maruthamuthu

Hands-on Technical Architect | Building & Scaling Products, Backend, and Data Platforms | Business impact

Greater Bengaluru Area

10+ years of work experience

Heroic Public Benefit Corporation
May 20232 yrs 6 mosOct 2025

Bengaluru

* Sole data engineer. Onboarded Segment and Fivetran to BigQuery and built DBT pipelines with a centralized revenue data mart powering Metabase * Delivered audit-ready revenue recognition and marketing attribution with churn/MRR reporting; 150+ DBT models; 8-hour freshness SLA. * Reverse ETL to HubSpot to activate revenue and lifecycle metrics for marketing.
Sense
Feb 20202 yrs 4 mosMay 2022

Bengaluru

* Designed and developed the Sense API, expanding the total addressable market and improving integration with customer’s existing ATS systems. * Cut customer onboarding time by 50% through process automation. * Enhanced data pipeline reliability across multiple ATS systems, including Bullhorn, JobDiva, and PCRecruiter. * Mentored engineers on design principles, TDD, unit testing, and effective code reviews. * Identified and nurtured talent in engineers, guiding them to faster career growth.
Gojek
Dec 20181 yr 3 mosFeb 2020

Greater Bengaluru Area

* Scaled the Voucher service to handle 4x load capacity
Treebo Hotels
May 20162 yrs 3 mosJul 2018

Bangalore, India

* Architected the Reservation System for Treebo from the ground up. * Led the migration from a monolithic architecture to microservices, improving system flexibility. * Initiated and led the migration from Python 2.7 to Python 3. * Delivered tech talks on Clean Code, TDD, Design Principles, and Story Points to drive best practices within the organization. * Coordinated and facilitated Bangpypers Python community events, providing infrastructure and support through my company.
Myntra
Mar 20142 yrs 2 mosApr 2016

Bangalore

* Horizontally scaled the Shopping Cart and Wishlist services with Cassandra, Redis, and MySQL sharding, supporting 12M USD in sales and a 15x traffic spike. * Evolved the existing logistics platform to streamline integration with new courier partners, enhancing flexibility and scalability.

Karthikkannan’s AI Stack

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obsidian
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Education

Anna University Chennai

Bachelor of Engineering, Computer Science

Anna University Chennai

20014 yrs2005

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Headline

Hands-on Technical Architect | Building & Scaling Products, Backend, and Data Platforms | Business impact

About

Hands-on Technical Architect | 18+ years building and scaling products | End-to-end Data Engineering | Technical leadership & mentoring | Business impact | Wide-ranging domain experience | Open to Remote-First (since 2020), Hybrid, and On-Site Work Models Keywords: Architecture; System Design; Distributed Systems; Scalability; Reliability; Performance Tuning; Cost Optimization; SLAs/SLOs; Data Engineering; Data Modeling; Dimensional Modeling; ETL; ELT; dbt; BigQuery; Fivetran; Segment; Reverse ETL; Metabase; SQL; PostgreSQL; CDC; Kafka; Event-Driven Architecture; Backend Engineering; REST APIs; Microservices; Python; FastAPI; Flask; SQLAlchemy; CI/CD; Docker; Kubernetes; Terraform; GitHub Actions; GCP; AWS; Observability; Domain-Driven Design; OOAD; SOA; Enterprise Applications; Java; J2EE; Spring; Hibernate; Clojure; Functional Programming; Unit Testing; TDD; Pytest.

Location

Greater Bengaluru Area

AI stack

claude code

claude

notebooklm

notion

obsidian

claudecode

Work experience

Principal Software Engineer at Heroic Public Benefit Corporation, May 2023 - Oct 2025 · 2 yrs 6 mos, Bengaluru, * Sole data engineer. Onboarded Segment and Fivetran to BigQuery and built DBT pipelines with a centralized revenue data mart powering Metabase * Delivered audit-ready revenue recognition and marketing attribution with churn/MRR reporting; 150+ DBT models; 8-hour freshness SLA. * Reverse ETL to HubSpot to activate revenue and lifecycle metrics for marketing.

Lead Engineer at Sense, Feb 2020 - May 2022 · 2 yrs 4 mos, Bengaluru, * Designed and developed the Sense API, expanding the total addressable market and improving integration with customer’s existing ATS systems. * Cut customer onboarding time by 50% through process automation. * Enhanced data pipeline reliability across multiple ATS systems, including Bullhorn, JobDiva, and PCRecruiter. * Mentored engineers on design principles, TDD, unit testing, and effective code reviews. * Identified and nurtured talent in engineers, guiding them to faster career growth.

Product Engineer at Gojek, Dec 2018 - Feb 2020 · 1 yr 3 mos, Greater Bengaluru Area, * Scaled the Voucher service to handle 4x load capacity

Architect at Treebo Hotels, May 2016 - Jul 2018 · 2 yrs 3 mos, Bangalore, India, * Architected the Reservation System for Treebo from the ground up. * Led the migration from a monolithic architecture to microservices, improving system flexibility. * Initiated and led the migration from Python 2.7 to Python 3. * Delivered tech talks on Clean Code, TDD, Design Principles, and Story Points to drive best practices within the organization. * Coordinated and facilitated Bangpypers Python community events, providing infrastructure and support through my company.

Sr.Associate Architect at Myntra, Mar 2014 - Apr 2016 · 2 yrs 2 mos, Bangalore, * Horizontally scaled the Shopping Cart and Wishlist services with Cassandra, Redis, and MySQL sharding, supporting 12M USD in sales and a 15x traffic spike. * Evolved the existing logistics platform to streamline integration with new courier partners, enhancing flexibility and scalability.

Education

Bachelor of Engineering, Computer Science, Anna University Chennai