Kartik K.

Business Development Executive

Mumbai, Maharashtra, India4 yrs 1 mo experience

AI ML PractitionerAI Enabled

Key Highlights

Expert in building scalable authentication systems.
Proven track record in optimizing database performance.
Passionate about clean architecture and impactful solutions.

Stackforce AI infers this person is a Fintech professional with expertise in scalable systems and authentication.

Contact

Skills

Core Skills

PaymentsAuthenticationSystem DesignData Engineering

Other Skills

UPI IntegrationGo (Programming Language)JavaScriptOAuth 2.0SSOOry HydraPgBouncerFirstKeyFingerprintJSBioCatchAirflowOracle DBCockroachDBGatlingScala

About

I’m a Business Engineer at Meta, passionate about building systems and processes that scale globally and create real impact. At Meta, I’m excited to build for everyone and build the future, contributing to platforms that solve complex business and technical challenges. Previously, I led the development of a centralized authentication platform at IDFC FIRST Bank, powering unified login experiences across the bank’s digital ecosystem for millions of users. I’ve designed and delivered scalable, secure, and high-performance systems, bridging backend services and frontend experiences. I have hands-on experience with Golang, Java (Spring Boot), PostgreSQL, Kafka, Redis, AWS, and modern frontend frameworks like React. I’m also experienced in system design, microservices architecture, authentication protocols (OAuth2, JWT, SSO), CI/CD, and cloud-native deployments. I’m passionate about clean architecture, thoughtful design, and building solutions that create real impact. Let’s connect if you’re interested in business engineering, scalable systems, or building impactful products.

Experience

4 yrs 1 mo

Total Experience

3 yrs 9 mos

Average Tenure

4 mos

Current Experience

Idfc first bank

2 roles

Software Developer

Promoted

Jul 2022 – Dec 2025 · 3 yrs 5 mos · Hybrid

Enterprise Authentication: Designed and managed a scalable authentication provider, ensuring secure logins with OAuth 2.0, SSO, and client credentials.
OAuth Server Upgrade: Migrated to Ory Hydra v2, improving resource efficiency and reducing latency.
Database Optimization: Implemented PgBouncer for connection pooling, reducing data layer latency by up to 98%.
Authentication Performance: Optimized read traffic with dedicated replicas, reducing authentication latency by 70%.
Passwordless & Security: Enabled passwordless login with FirstKey (RSA), integrated FingerprintJS for device fingerprinting, and enhanced fraud detection with BioCatch.
Automated Credential Management: Developed an Airflow DAG for Oracle DB password rollover, reducing manual effort and downtime.
High Availability & Compliance: Deployed CockroachDB for 99.99% uptime with automated replication, ensuring fault tolerance and regulatory compliance.
Performance Engineering: Developed Scala-based Gatling scripts to test API scalability, optimizing response times and throughput.

Go (Programming Language)JavaScriptAuthenticationSystem Design

Application Engineer

Mar 2022 – Jul 2022 · 4 mos · Hybrid

Change Data Capture (CDC): Developed an Operational Data Store (ODS) to optimize large query performance on the customer database.
Real-Time Data Streaming: Integrated Debezium for real-time change data capture, publishing updates to Kafka topics.
Observability & Monitoring: Built a Grafana dashboard with alerting to track data update trends in Finnone.

Elastic Stack (ELK)Apache KafkaData Engineering