Данило

Profile

Senior Full Stack Developer with 5+ years of
commercial experience and a strong focus on web
application security. Holding a Master's degree in

Danylo Cybersecurity, I combine robust frontend and
backend engineering with a security-first mindset.
Shevchenko Experienced in delivering rich UI components,
implementing secure coding practices to mitigate
OWASP Top 10 vulnerabilities, and collaborating
Kyiv,Ukraine
with security and QA teams to analyze logs, address
[open contact info](look above in the "contact info" section)
vulnerabilities, and ensure safe data processing.
[open contact info](look above in the "contact info" section)

Skills Employment

● JavaScript,
● TypeScript Senior Full Stack Developer and Security
airSlate | May2023 - Jul2026
● React, Redux,
● Next.js ● Led the end-to-end development of key product

● Java, Node.js, features as a Feature Lead, proactively
● Express.js incorporating secure coding standards into the
● REST API / Agile development process.
● GraphQL ● Developed interactive web-based PDF editor
● Firebase, features using React, ensuring client-side security
● PostgreSQL, measures against XSS, CSRF, and broken
● MongoDB access control.
● OOP/OOD, Git, ● Collaborated with the security and infrastructure
● Docker teams to analyze event logs, investigate bug
● CI/CD, Jest, reports, and resolve potential security flaws.
● Cypress ● Wrote and optimized SQL queries to analyze
● Web / App database integrity, search for anomalies, and
● Security
ensure correct data manipulation.
● OWASP Top 10
● Conducted code reviews for team members,
● Secure Coding
paying special attention to secure file handling,
● Practices
safe session management, and strict role-based
● Vulnerability
access control (RBAC) in Java backend services.
● Remediation
● Integrated automated tests into CI/CD pipelines
● Log Analysis & SQL
to maintain system stability and prevent the
regression of critical functionality and security
Education fixes.

Master's degree, Frontend Developer
Cybersecurity SoftServe | Sep 2020 - Apr 2023

State University of ● Developed a web platform for publishing verified
Information and medical and scientific content, focusing on high
Communication
performance, secure data delivery, and reliable
Technologies (DUIKT),
authentication.
Kyiv
2019 - 2025 ● Built a custom Chrome Extension integrated with
the Jira REST API, implementing strict input
validation and secure credential handling.
Languages
● Engineered a document import feature
(OneDrive, Google Drive), applying safe file
English B2 parsing techniques to prevent malicious data
injection and upload vulnerabilities.
Ukrainian C2 ● Created automated testing suites for Confluence
APIs (REST, GraphQL) to ensure service

Personal reliability and contract compliance, including
basic access control checks.

● Actively participated in team reviews to promote
Nationality: Ukraine
cyber hygiene and ensure adherence to secure
software development practices.