Summary
Overview
Work History
Education
Skills
Hobbies and Interests
Projects
Disclaimer
Languages
Timeline
Generic

Sunil S. Pasalkar

Pune

Summary

Principal Engineer with 13 years of experience building high-availability, low-latency distributed systems
using Java and Spring Boot. Deep expertise in real-time transaction platforms handling millions of events
per day in regulated environments. Strong hands-on architect with applied knowledge of Data Science and
Artificial Intelligence.

Overview

14
14
years of professional experience

Work History

Principal Software Engineer

Alteatec IT solution private limited
Pune
05.2017 - Current
  • Gathered business and technical requirements from stakeholders and prepared detailed functional and technical specification documents.
  • Authored technical documentation, including system architecture diagrams, API documentation, and integration guides, to support knowledge sharing and collaboration.
  • Delivered comprehensive project documentation for software development initiatives, ensuring maintainability, and continuity across teams.
  • Collaborated with product managers and cross-functional teams to define technical requirements and align development goals with business objectives.
  • Conducted training and mentoring sessions for junior engineers, promoting continuous learning and technical growth within the team.
  • Monitored production systems post-deployment and resolved issues proactively to maintain high availability and operational efficiency.
  • Designed and developed scalable software systems based on business requirements and initial project briefs.
  • Identified and implemented process improvements that increased operational efficiency and reduced delivery timelines.
  • Developed and standardized procedures for software testing, validation, and quality assurance.
  • Architected and maintained real-time transaction systems handling bets, wallets, and settlements with high reliability.
  • Designed Kafka-based event-driven pipelines capable of processing millions of events per day.
  • Optimized critical platform services to achieve sub-50ms response latency.
  • Led monolith-to-microservices transformation initiatives, improving release velocity by 60%.
  • Served as the technical escalation point and resolution lead for P0/P1 production incidents.
  • Led the development of payment modules including deposits, withdrawals, and wagering-based withdrawal validations.
  • Implemented withdrawal restriction logic to ensure withdrawals are processed only through previously used deposit methods, ensuring compliance and fraud prevention.
  • Applied German regulatory requirements including responsible gaming limits and compliance controls.
  • Led the design and implementation of limit management modules for casino gameplay and payment transactions.
  • Architected and managed multiple wallet support for a single player within the platform.
  • Led the casino game transaction module handling bet placement, win processing, and rollback operations.
  • Designed and implemented taxation modules for bet and win transactions.
  • Led development of the GGL (German Gaming Legislation) Safe Server used for regulatory event verification and compliance reporting.
  • Led the core wallet platform development supporting seamless integrations with multiple gaming providers and systems

System Analyst

Indus Technology
Pune
12.2015 - 05.2017

Java Developer

SCDL
Pune
07.2012 - 12.2015
  • OAS is a web application deployed on Amazon Cloud, designed to conduct exams in offline / online mode at Test Centers, acts as a communication tool for Assignments submissions, generate question papers and syncs the results back to the central server using SFTP and Quartz Scheduler and other activities over different test centers across the world.
  • This web based project was designed to conduct semester wise online examinations of BA, BCOM, MCOM of Symbiosis College of arts and commerce.
  • This web based project was designed to conduct online entrance examination of Symbiosis Institute of Media and Communication.
  • This web based project was designed to conduct online entrance examination of Symbiosis Institute of Business Management.

Education

MCS -

Pune University
Maharashtra

BCS -

Pune University
Maharashtra

Skills

  • Java (8–21), Spring Boot, Spring Security, Microservices
  • Distributed Systems, Microservices, Event-Driven Architecture
  • Kafka, PostgreSQL, Redis, MongoDB
  • Docker, Kubernetes, AWS / Cloud-Native Architecture
  • Observability, Performance Engineering, JVM Tuning
  • JVM Tuning, Performance & Latency Optimization
  • Applied AI: Predictive Analytics, Anomaly Detection, Real-Time Analytics
  • Web services
  • Struts 21
  • Hibernate
  • Apache Tomcat
  • JBoss
  • BIRT Report
  • Oracle
  • SVN

Hobbies and Interests

  • Playing Cricket and Volleyball
  • Internet surfing

Projects

  • VP Bank, Indus Technology, Java Developer, 15, 2016-01-01, 2016-09-30, Core Java, Web service, Oracle, SVN, Eclipse, 6 months, This web based project was designed to perform loan origination activity. This project contains multiple module out off which worked on two modules 1)Framework for web services 2) Development of web services., Involved in development, testing and deployment activities of web services., Developed soap based web services., Designed and developed framework for web services., Developed framework for consuming web services., Created client to consume service., Performed Unit testing, deployment related activities., Developed exposing of service.
  • Online Assessment System, SCDL, Java Developer, 7, 2012-07-01, present, Core Java, Struts, Hibernate, Oracle, SVN, Eclipse, MySQL, Putty, OAS is a web application deployed on Amazon Cloud, designed to conduct exams in offline / online mode at Test Centers, acts as a communication tool for Assignments submissions, generate question papers and syncs the results back to the central server using SFTP and Quartz Scheduler and other activities over different test centers across the world., Worked on JAVA/J2EE Technologies and frameworks such as Hibernate, Struts 2.0., Written stored procedures and complex SQL queries in Oracle 11 G., Created, Managed and deployed code on AWS Cloud environment., Used EC2, SES etc. services of AWS Cloud., Participated in key meetings to decide over design and architecture of modules., Created various types of reports using BIRT as per client requirement., Involved in Co-ordination with the team.
  • SCAC (Symbiosis College of Arts and Commerce), SCDL, Java Developer, 3, 2013-09-01, 2015-06-30, Java/J2EE, Struts, Hibernate, Oracle, SVN, Eclipse, MySQL, This web based project was designed to conduct semester wise online examinations of BA, BCOM, MCOM of Symbiosis College of arts and commerce., Handled end to end software design, development, testing and deployment activities., Designed to import student data which registered through excel., Bulk booking functionality which will book exam slot of single subject for n number of student which will reduce manual process of exam booking., Designed Result display screen for student., Designed Result published module, Developed multiple stored procedures to published result as per client requirement.
  • SIMC (Symbiosis Institute of Media and Communication), SCDL, Java Developer, 5, 2014-12-01, 2015-02-28, Java/J2EE, Struts, Hibernate, Oracle, SVN, Eclipse, MySQL, This web based project was designed to conduct online entrance examination of Symbiosis Institute of Media and Communication. We have implemented section toggling functionality for this project., Participated in key meetings to decide over design and architecture of modules., Involved in end to end software design, development, testing and deployment activities., Entire setup Created, Managed and deployed on AWS Cloud environment., Designed exam hall ticket module., Mentoring the team members.
  • SIBM (Symbiosis Institute of Business Management), SCDL, Java Developer, 7, 2014-05-01, 2014-06-30, Core Java, Struts, Hibernate, Oracle, SVN, Eclipse, MySQL, This web based project was designed to conduct online entrance examination of Symbiosis Institute of Business Management. This project contains two additional modules apart from regular modules- 1) Exam definition module, which contains various types of questions in multiple sections. 2) Email module, designed through oracle stored procedure., Involved in end to end software design, development, testing and deployment activities., Created, Managed and deployed code on AWS Cloud environment., Designed exam definition module which handled multiple type question in multiple section., Designed Email module, this module designed through oracle stored procedure which sent email to registered user only., Performed Unit testing, deployment related activities.

Disclaimer

I hereby declared that all the information given above is true to the best of my knowledge and belief.

Languages

English
Beginner
A1
Hindi
Beginner
A1
Marathi
Beginner
A1

Timeline

Principal Software Engineer

Alteatec IT solution private limited
05.2017 - Current

System Analyst

Indus Technology
12.2015 - 05.2017

Java Developer

SCDL
07.2012 - 12.2015

MCS -

Pune University

BCS -

Pune University
Sunil S. Pasalkar