
Vignesh Rao Guntapally
FULL STACK ENGINEER | REACT • NODE • AWS | SECURE & SCALABLE SYSTEMS
Salary / Daily rate
London, UK
Freelance, open to permanent contract
Skills
About me
Intro
Full Stack Developer with nearly 4 years of experience building secure, scalable web applications across healthcare technology and enterprise platforms. Experienced in developing React.js user interfaces, Node.js APIs, and cloud-based services supporting high-volume data workflows. Strong background in REST API design, database optimisation, and secure authentication aligned with healthcare compliance standards including GDPR. Proven ability to collaborate with product teams, clinicians, and engineers to deliver reliable systems that improve operational efficiency and user experience.
Work experience
Full Stack Developer
EMIS Group
May 2025 - Present
1 year 6 months
London, UK
– Developing healthcare software platforms supporting clinical workflows across NHS organisations. – Build and maintain full-stack healthcare applications using React.js and Node.js, enabling secure real-time access to 100K+ patient records used within clinical workflows. – Developed RESTful APIs integrating NHS Patient Demography Service (PDS) to synchronise patient demographic data and reduce manual verification effort for administrative teams. – Designed scalable MySQL and MongoDB schemas supporting over 1M healthcare records, ensuring secure storage aligned with GDPR data protection requirements. – Implemented clinical safety alerts and decision-support features assisting clinicians in identifying prescribing risks and patient safety issues. – Introduced Role-Based Access Control (RBAC), authentication mechanisms, and audit logging, strengthening application security and traceability of patient data access. – Optimised database queries and backend API performance, improving application response times by approximately 30% during high concurrent usage. – Containerised application services using Docker and deployed workloads on AWS infrastructure, improving environment consistency and deployment reliability. – Collaborated with clinicians, QA engineers, and product owners to translate clinical requirements into functional software features that improve usability and adoption.
Full Stack Developer
CitiusTech
Jan 2023 - Feb 2024
1 year 2 months
Indianapolis, IN, USA
– Contributed to healthcare analytics and operational reporting platforms used by healthcare providers and internal operational teams. – Developed React.js dashboards enabling healthcare operations teams to analyse reporting data and monitor operational performance metrics. – Built modular frontend components using React Hooks and Redux, improving UI maintainability and enabling faster feature development across application modules. – Integrated Node.js REST APIs to deliver real-time data access across dashboard components and internal reporting tools. – Converted UX design wireframes into responsive interfaces, improving application usability across desktop and tablet devices. – Developed reusable UI components and frontend utilities that reduced development duplication across multiple product modules. – Automated manual reporting workflows through interactive dashboards, reducing manual reporting effort by approximately 35%. – Collaborated with backend developers and QA engineers to implement secure API communication and improve application stability. – Participated in Agile development cycles, including sprint planning, backlog refinement, and code reviews.
Software Engineer
Mphasis
Apr 2021 - Dec 2022
1 year 9 months
Indianapolis, IN, USA
– Worked on enterprise web applications supporting internal operational systems and digital platforms. – Developed interactive frontend modules using JavaScript and React.js, improving application responsiveness and user interaction across enterprise web platforms. – Integrated backend REST APIs and SQL database queries to support dynamic content rendering and real-time application functionality. – Contributed to enhancement of enterprise workflow applications used for operational tracking and internal reporting. – Performed debugging and performance optimisation activities that improved application stability and reduced runtime errors. – Collaborated with cross-functional agile teams including developers, testers, and product stakeholders to deliver new features aligned with business requirements. – Maintained code quality through Git-based version control, peer code reviews, and adherence to coding standards.
Education
University of East London
MSc Computer Science, Computer Science
2024 - 2025
1 year 1 month
– Distinction
Anurag Group of Institutions
BEng in Information Technology, Information Technology
2019 - 2023
4 years 1 month
– 1st