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I'm Sai Tejesh Reddy Vaka, a results-driven software engineer with 4+ years of experience designing and delivering enterprise applications using Java, Spring Boot, React.js, and AWS. I specialize in building scalable microservices and REST APIs, and I thrive in Agile environments to deliver secure, high-availability systems. In my roles at PNC and Green Touch Technology, I led cloud migrations to AWS, optimized performance with caching and database tuning, and implemented robust security with JWT/OAuth2. I enjoy collaborating with cross-functional teams, automating deployments, and mentoring peers to write clean, reliable code.…I'm Sai Tejesh Reddy Vaka, a results-driven software engineer with 4+ years of experience designing and delivering enterprise applications using Java, Spring Boot, React.js, and AWS. I specialize in building scalable microservices and REST APIs, and I thrive in Agile environments to deliver secure, high-availability systems. In my roles at PNC and Green Touch Technology, I led cloud migrations to AWS, optimized performance with caching and database tuning, and implemented robust security with JWT/OAuth2. I enjoy collaborating with cross-functional teams, automating deployments, and mentoring peers to write clean, reliable code.

Sai Tejesh Reddy Vaka

Full Stack Developer, Back-End Developer, Web Developer, +5

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I'm Sai Tejesh Reddy Vaka, a results-driven software engineer with 4+ years of experience designing and delivering enterprise applications using Java, Spring Boot, React.js, and AWS. I specialize in building scalable microservices and REST APIs, and I thrive in Agile environments to deliver secure, high-availability systems. In my roles at PNC and Green Touch Technology, I led cloud migrations to AWS, optimized performance with caching and database tuning, and implemented robust security with JWT/OAuth2. I enjoy collaborating with cross-functional teams, automating deployments, and mentoring peers to write clean, reliable code.…I'm Sai Tejesh Reddy Vaka, a results-driven software engineer with 4+ years of experience designing and delivering enterprise applications using Java, Spring Boot, React.js, and AWS. I specialize in building scalable microservices and REST APIs, and I thrive in Agile environments to deliver secure, high-availability systems. In my roles at PNC and Green Touch Technology, I led cloud migrations to AWS, optimized performance with caching and database tuning, and implemented robust security with JWT/OAuth2. I enjoy collaborating with cross-functional teams, automating deployments, and mentoring peers to write clean, reliable code.

Available to hire

I’m Sai Tejesh Reddy Vaka, a results-driven software engineer with 4+ years of experience designing and delivering enterprise applications using Java, Spring Boot, React.js, and AWS. I specialize in building scalable microservices and REST APIs, and I thrive in Agile environments to deliver secure, high-availability systems.

In my roles at PNC and Green Touch Technology, I led cloud migrations to AWS, optimized performance with caching and database tuning, and implemented robust security with JWT/OAuth2. I enjoy collaborating with cross-functional teams, automating deployments, and mentoring peers to write clean, reliable code.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Javanese

Advanced

Bashkir

Intermediate

Work Experience

Software Engineer at PNC Financial Services

September 1, 2024 - November 6, 2025

Designed and implemented Spring Boot microservices handling 100K+ daily financial transactions with <200ms latency; developed REST APIs integrated with React.js applications; migrated critical services from monolithic systems to AWS-based microservices (EC2, S3, RDS, Lambda); implemented JWT, OAuth2, and TLS encryption; optimized performance with Redis caching and PostgreSQL query tuning; ensured PCI-DSS compliance and SOC2 alignment; collaborated in Agile teams with CI/CD using Jenkins, Docker, and Kubernetes.

Software Developer at Green Touch Technology

December 1, 2023 - December 1, 2023

Built and maintained Java Spring Boot microservices with Redis and Memcached; developed 200+ REST APIs integrated with Kafka for real-time event processing; established automated CI/CD pipelines with Jenkins, Docker, and GitHub Actions; modernized legacy COBOL batch processing into scalable Spring Boot applications; mentored junior developers in unit testing and clean coding practices.

Software Engineer at PNC Financial Services

September 1, 2024 - November 24, 2025

Designed and implemented Spring Boot microservices to handle 100K+ daily financial transactions with <200ms latency, improving customer experience while ensuring high availability and PCI-DSS compliance. Developed REST APIs integrated with React.js applications for digital banking workflows, migrated critical services to AWS-based microservices (EC2, S3, RDS, Lambda) reducing downtime by 70% and supporting 50K+ concurrent users. Strengthened security with JWT, OAuth2, TLS, reducing unauthorized access incidents by 85% and aligning with SOC2 audit requirements and internal compliance checks. Optimized performance with Redis caching, connection pooling, and PostgreSQL tuning, cutting response times by 40%. Collaborated in Agile teams and automated deployments with Jenkins, Docker, and Kubernetes, accelerating release cycles by 30%.

Software Developer at Green Touch Technology

January 1, 2021 - December 1, 2023

Built and maintained Java Spring Boot microservices integrated with Redis and Memcached, reducing data retrieval time and improving responsiveness; developed 200+ REST APIs with Kafka event streams for asynchronous communication and real-time daily events; established automated CI/CD pipelines with Jenkins, Docker, and GitHub Actions, reducing manual deployment effort by 80%; modernized legacy COBOL-based batch processing into scalable Spring Boot applications, eliminating recurring downtime of 40+ hours/month; mentored junior developers in unit testing and clean coding practices.