SQL Developer, Entry Level

About the Internship

Medinex Workforce manages extensive data, including candidate profiles, client requirements, interview schedules, placement history, and billing records. Dashboards, trackers, and reports rely on efficient and accurate queries. Slow or faulty queries can lead to recruiter delays or inaccurate management reports. This internship offers the opportunity to write and optimize SQL queries, understanding performance differences between queries that yield the same results.

Key Responsibilities

• Write SQL queries incorporating joins, subqueries, aggregations, and window functions.
• Create views and stored procedures for recurring reports.
• Design small, well-structured tables with appropriate keys and relationships.
• Identify and improve slow queries using indexes and optimized query design.
• Prepare clean data extracts for the reporting and analytics team.
• Perform data validation for duplicates, missing values, and inconsistent entries.
• Document tables and queries for clarity and reusability.
• Share progress in daily check-ins and weekly reviews.

Requirements & Tech Stack

• Strong SQL basics (SELECT, JOIN, GROUP BY, HAVING, subqueries).
• Working knowledge of MySQL, PostgreSQL, or SQL Server.
• Understanding of primary keys, foreign keys, and normalization.
• Logical, structured thinking.
• Habit of double-checking results before sharing.
• A laptop and stable internet connection for full-time remote work.

Nice to Have

• Knowledge of indexes and query execution plans.
• Basic Excel or Python skills.
• A SQL practice profile on HackerRank or LeetCode, or a small database project.

Qualifications

• Final-year students and recent graduates from B.Tech, B.E., BCA, B.Sc (CS/IT), MCA, B.Com, or any stream with strong SQL skills.
• Self-taught learners who can demonstrate a project or certificate.
• Freshers are welcome; prior experience is not required.
• Must be available full-time for the internship period (1 to 3 months).