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Sandra Balakrishnan

Sandra Balakrishnan

Software Engineer

Kochi, Kerala 683501, India 3+ yrs exp 91 ยท Outstanding

About

Software Engineer with 3+ years of experience in enterprise software development, backend support, network troubleshooting, and secure communication systems. Strong experience in object-oriented programming, debugging, system analysis, and Agile software development gained through working on large-scale VoIP applications. Certified Full Stack Java Developer with hands-on experience in building backend applications using Java, Spring Boot, Spring Data JPA, Hibernate, REST APIs, MySQL, Maven, Git, and Swagger. Developed end-to-end Java projects by implementing CRUD operations, layered architecture, exception handling, validation, DTOs, and database integration following industry best practices. Passionate about designing scalable and maintainable backend applications while continuously learning modern Java technologies. Looking to contribute as a Java Backend Developer by combining strong software engineering experience with practical expertise in Java and Spring Boot development.

Skills & Expertise (20)

C++ Advanced
7.5/10
3
Years Exp
Version Control Intermediate
6.4/10
3
Years Exp
SSL Intermediate
6.4/10
3
Years Exp
TLS Intermediate
6.4/10
3
Years Exp
SIP Intermediate
6.4/10
3
Years Exp
VoIP Intermediate
6.4/10
3
Years Exp
Spring MVC Intermediate
5.5/10
3
Years Exp
Hibernate ORM Intermediate
5.5/10
3
Years Exp
JDBC Intermediate
5.5/10
3
Years Exp
API Testing Intermediate
5.5/10
3
Years Exp
Network Troubleshooting Intermediate
5.0/10
3
Years Exp
LAN Intermediate
5.0/10
3
Years Exp
PBX Intermediate
5.0/10
3
Years Exp
SOLID principles Intermediate
5.0/10
3
Years Exp
Dependency Injection Intermediate
5.0/10
3
Years Exp
Repository Pattern Intermediate
5.0/10
3
Years Exp
MVC Intermediate
5.0/10
3
Years Exp
DTO Pattern Intermediate
5.0/10
3
Years Exp
Bean Validation Intermediate
5.0/10
3
Years Exp
Spring Security Intermediate
5.0/10
3
Years Exp

Work Experience

Software Engineer

ThinkPalm Technologies

Sep 2022 - Oct 2025

Developed and maintained enterprise software solutions supporting VoIP communication systems using C/C++ in a Linux-based environment. Investigated and resolved complex production issues through debugging, log analysis, and root cause analysis, improving application reliability and customer satisfaction. Collaborated with cross-functional teams following Agile/Scrum methodologies and Git-based version control to deliver software enhancements and bug fixes. Worked extensively with SIP, RTP, TLS/SSL, and networking protocols to support secure, high-availability communication systems. Participated in backend feature development, configuration management, and system integration activities for enterprise networking products. Created and managed SSL/TLS certificates to enable secure communication between distributed applications and network components. Contributed to technical documentation, code reviews, and knowledge-sharing sessions, improving development efficiency and maintainability. Worked closely with QA, DevOps, and customer support teams to troubleshoot production incidents and deliver timely software solutions. Strengthened core software engineering skills including object-oriented programming, problem-solving, debugging, API analysis, and system design, which are directly applicable to Java backend development.

Education

Bachelor of Technology (B.Tech) in Computer Science - Vidya Academy of Science and Technology

- 2022 ยท Afghanistan

Certifications

Full Stack Java Developer Master Program

ยท 2026

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Profile Score Breakdown

๐Ÿ“ท Photo 10/10
๐Ÿ“„ Resume 10/10
๐Ÿ’ผ Job Title 10/10
โœ๏ธ Bio 10/10
๐Ÿ› ๏ธ Skills 20/20
๐ŸŽ“ Education 10/10
โฑ๏ธ Experience 11/15
๐Ÿ’ฐ Rate 0/5
๐Ÿ† Certs 5/5
โœ… Verified 5/5
Total Score 91/100

Profile Overview

Member sinceSep 2026

Skills (20)

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