Java Full-Stack Developer - FinTech Specialist

Chandu Challa

Java Full-Stack Developer

**************@*****.*** +1-224-***-**** LinkedIn Chicago, IL SUMMARY

Experienced and results-driven Java Full Stack Developer with 5 years of expertise in building secure, scalable web applications across banking and fintech domains. Skilled in Java, Spring Boot, React, Angular, and RESTful APIs, with a strong focus on backend logic and frontend responsiveness. Adept at integrating financial APIs, ensuring compliance with PCI DSS and SOC 2 standards. Proficient in database optimization using MySQL and MongoDB, along with containerization and CI/CD pipelines. Collaborative in Agile teams, with a consistent track record of delivering high- quality financial software solutions on time.

PROFESSIONAL EXPERIENCE

Java Full-Stack Developer, PayPal Apr 2024 – Present IL

• Built and scaled 3+ fintech applications using Java, Spring Boot, and React, improving digital banking services and enhancing user engagement for 1M+ customers.

• Designed and launched 10+ secure RESTful APIs for payment processing, account management, and KYC workflows, ensuring full SOC 2 and PCI DSS compliance.

• Integrated with Plaid and Open Banking APIs, accelerating third-party connectivity and reducing onboarding time by 30% for partner fintech apps.

• Optimized database access patterns and added smart indexing, achieving a 35% improvement in transaction throughput during high-frequency trading hours.

• Deployed microservices in Docker containers orchestrated with Kubernetes, cutting production rollout time by 40% and ensuring 99.95% system uptime.

• Implemented CI/CD pipelines with Jenkins and GitHub Actions, streamlining releases and reducing delivery cycle time by 30% for new features.

• Collaborated across 5+ squads in Agile environments, driving 12+ sprint deliveries with an average sprint success rate of 96%.

• Boosted code reliability with 95% coverage through robust unit and integration testing using JUnit, Mockito, and TestContainers for real-world simulation.

Full-Stack Developer, Accenture Jan 2019 – July 2022 India

• Developed and deployed 5+ enterprise-grade applications for Fortune 500 banks, streamlining financial workflows and improving operational efficiency by 25%.

• Delivered dynamic, responsive front-end interfaces using Angular and Bootstrap, enhancing customer experience by 15% across digital banking platforms.

• Designed and implemented 8+ microservices, reducing transaction downtime by 20% and improving system scalability for high-volume banking systems.

• Managed 50,000+ records including accounts, payments, and KYC data in MySQL, optimizing queries and improving data performance by 25%.

• Streamlined collaboration across 3 geographically dispersed teams using GitLab and Bitbucket, ensuring 100% on- time delivery of financial solutions.

• Reduced application errors by 15% through rigorous debugging and root-cause analysis, enhancing system reliability for real-time banking operations.

• Enhanced workflow transparency and sprint tracking by utilizing JIRA and Confluence, increasing team productivity and delivery speed by 10%.

EDUCATION

Bachelors in computer science and engineering 2020 Talla Padmavathi college of engineering

Masters in, Computers and information Technology, 2024 Elmhurst University

SKILLS

Languages & Frameworks: Java, Spring Boot, JavaScript, TypeScript, React, Angular, Node.js Frontend: HTML5, CSS3, Bootstrap, Tailwind CSS, Responsive Design, Material UI Backend: RESTful APIs, Microservices, MVC, GraphQL, API Gateway Databases: MySQL, PostgreSQL, MongoDB, Cassandra

DevOps & Cloud: Docker, Kubernetes, Jenkins, AWS (EC2, S3, RDS), Azure DevOps Testing Tools: JUnit, Mockito, Postman, Selenium, TestContainers, Swagger Version Control & CI/CD: Git, GitHub, GitLab, Bitbucket, Jenkins, GitLab CI/CD Project Tools & Methodologies: JIRA, Confluence, Agile, Scrum Other Tools: IntelliJ IDEA, VS Code, Maven, Gradle, Figma (UI prototyping) Soft Skills: Analytical Thinking, Team Collaboration, Communication, Adaptability, Attention to Detail, Time Management

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