Backend Engineering & Security Intern

Team

Backend Engineering

Positions

1

Role purpose

Help maintain and improve Timmy HR's backend, database, APIs, and security as the platform supports live clients and handles sensitive employee and organizational information.

Key responsibilities

• Review existing backend code and APIs to identify bugs, weaknesses, and opportunities for improvement.
• Help maintain database structure, relationships, constraints, indexes, migrations, and query performance.
• Review and improve authentication, authorization, role-based access control, and tenant isolation.
• Help ensure each client organization can access only its own authorized data.
• Identify potential security vulnerabilities, unsafe database queries, exposed secrets, and insecure API endpoints.
• Implement input validation, error handling, and appropriate server-side permission checks.
• Assist with database backups, recovery procedures, migration testing, and data-integrity checks.
• Monitor backend errors, investigate production issues, and help improve application reliability.
• Write and maintain automated tests for critical APIs and access-control rules.
• Review dependency vulnerabilities and support secure coding practices.
• Document backend architecture, database changes, and security findings.
• Work with the engineering team to test fixes before deploying them to production.

Required skills

• Knowledge of backend development using the stack selected by Intelura, such as Node.js and TypeScript.
• Understanding of SQL and relational databases, preferably PostgreSQL.
• Familiarity with REST APIs, authentication, authorization, and Git/GitHub.
• Basic knowledge of OWASP security principles and secure coding practices.
• A careful, methodical approach to handling production systems and data.

Expected outcomes

• Better-tested and more reliable backend services.
• Documented database and API improvements.
• Identified and addressed security weaknesses.
• Improved data integrity, access control, and production stability.