HARIHARASUDAN K S
Berlin,Germany
Summary
Passionate Software Engineer with 6+ years of experience in the the fast-paced FinTech industry and scalable backend development. Expertise in Java, Python, Spring Boot, SQL, No-SQL, AWS, CI/CD practices, and Agile methodologies, with a strong track record in designing and optimizing microservices, multi-tenancy architectures, and high-volume systems. Proficient in solving complex problems and building fault-tolerant, high-performance applications.
Overview
7
7
years of professional experience
Work History
Senior Software Engineer
Chargebee Technologies
01.2022 - Current
- Improved system scalability to handle high-volume invoicing for B2B resellers
- Investigated and resolved connection timeout issues with invoices exceeding 1,000 items
- Currently developing a solution for PDF generation for such invoices
- Contributed to the core development team in enhancing the Multi-tenancy architecture, enabling multiple product instances to coexist within a shared environment
- Implemented the winning hackathon idea as a feature to allow customers to customize templates on their own
- Led the transition from a monolithic architecture to a more scalable microservice-based architecture using Java Spring Boot, resulting in a major product upgrade (v2)
- Developed a data browser using GraphQL to access data from the main application
Software Developer
Chargebee Technologies
06.2019 - 01.2022
- Authored and maintained Open API for upgrading multiple customers from version v1 to v2 of the enhanced product
- Successfully integrated a third-party chat-bot, implementing a cloud infrastructure with API Gateway and Lambda using AWS CloudFormation templates (AWS-SAM)
- Led an application-level change to accommodate currency fields of higher value
Junior Data Analyst
Ideas2IT Technologies
06.2018 - 05.2019
- Performed data extraction and exploration in Python for a ChatBot application
- Implemented facial recognition to track employees' daily attendance
Education
Bachelor Degree - Information Technology
SSN College of Engineering
Chennai, India05.2018
Skills
- Java, Python, Kotlin (basic)
- Spring Boot, Flask
- MySQL, DynamoDB, Postgres, GraphQL
- JavaScript, HTML, CSS
- REST APIs, Multi-threading, AWS, Serverless, AWS SAM
- Docker, Kubernetes, Apache Kafka Basics
Certifications And Achievements
- AWS Certified Developer – Cloud Practitioner - Amazon Web Services (AWS)
- Certified payment card industry security implementer
- AWS Camel Basics
- Winning Team - ChargeUp hackathon - 2023
Languages
English
German (learning)
Hobbies and Interests
- Exploring new technologies
- Travelling
Timeline
Senior Software Engineer
Chargebee Technologies
01.2022 - Current
Software Developer
Chargebee Technologies
06.2019 - 01.2022
Junior Data Analyst
Ideas2IT Technologies
06.2018 - 05.2019
Bachelor Degree - Information Technology
SSN College of Engineering
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