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.