Python Developer

APAR TECHNOLOGIES PTE. LTD.; Singapore; On-site; SGD 70,000 - 90,000; Full time

Job summary

A leading technology firm in Singapore is seeking a skilled tech professional with strong Python development and SQL expertise. The role requires knowledge of ETL tools and data migration experience with large datasets. Educational background should include a Bachelor's or Master's degree in Computer Science, Data Engineering, or related fields. Certifications in cloud, ETL, or Python are a plus. This position offers opportunities to work on critical data projects under tight timelines.

Qualifications

• Strong Python development skills including Pandas, NumPy, and SQLAlchemy.
• Expert SQL capabilities in joins, window functions, and indexing.
• Experience with ETL tools like Airflow and Informatica.

Skills

Python

SQL

ETL development

PostgreSQL

Oracle

MS SQL Server

Pandas

NumPy

SQLAlchemy

pyodbc

Airflow

Informatica

Glue

Talend

SSIS

Education

Bachelors in Computer Science

Masters in Computer Science

Information Systems degree

Data Engineering degree

Cloud certification

ETL certification

Python certification

DB certification

Job description

Core Technical Skills

Hands‑on Python, SQL, ETL development, and relational database expertise (PostgreSQL, Oracle, MS SQL Server, etc).

Required Skills Experience

Strong Python development (Pandas, NumPy, SQLAlchemy, pyodbc, custom ETL frameworks). Expert SQL: joins, window functions, CTEs, partitioning, indexing. Experience with ETL tools (Airflow, Informatica, Glue, Talend, SSIS, etc.). Hands‑on data migration experience with large datasets (100M rows). Solid understanding of RDBMS concepts, modelling, constraints, and referential integrity. Strong analytical, problem‑solving, communication, and documentation skills. Ability to work under tight timelines during migration and cutover periods.

Education

Bachelors or Masters in Computer Science, Information Systems, Data Engineering, or related fields. Cloud/ETL/Python/DB certifications are a plus.