SQL Developer in London

SQL Developer in London

London Full-Time No working from home possible
Information Tech Consultants

Immediate Joiners

Job Title: Junior Big Data Developer (Python & SQL)

Salary:

Location: London

Employment Type: Full-Time

Department: Data Engineering / Big Data

About the Role

We are seeking a motivated Junior Big Data Developer with strong skills in Python and SQL to join our growing data engineering team. In this role, you will help design, build, and maintain large-scale data processing systems that enable analytics, reporting, and machine learning initiatives. This position is ideal for someone with a passion for data and a desire to develop technical expertise in Big Data technologies.

Key Responsibilities

  • Assist in the development, testing, and maintenance of big data pipelines for processing large volumes of structured and unstructured data.
  • Write efficient Python scripts for data ingestion, transformation, and automation.
  • Develop and optimize SQL queries to extract, clean, and manipulate data from various databases.
  • Work with ETL tools and data integration frameworks to move data across systems.
  • Collaborate with data engineers, data scientists, and analysts to ensure reliable data flow and accessibility.
  • Monitor and troubleshoot data pipeline performance issues.
  • Maintain data quality, consistency, and integrity across all data sources.
  • Document technical workflows and participate in code reviews.

Required Qualifications

  • Bachelor\'s degree in Computer Science, Information Technology, Data Engineering, or a related field.
  • Strong programming skills in Python (experience with libraries such as pandas, PySpark, or SQLAlchemy is a plus).
  • Proficiency in SQL with hands-on experience writing complex queries, joins, and data manipulations.
  • Basic understanding of data warehousing concepts and ETL processes.
  • Familiarity with Big Data ecosystems such as Hadoop, Spark, Hive, or Kafka.
  • Knowledge of Linux/Unix environments and command-line tools.
  • Strong analytical, problem-solving, and communication skills.
  • Eagerness to learn and adapt to new tools and technologies in the data engineering domain.

Preferred Qualifications

  • Exposure to cloud platforms like AWS (Glue, EMR, Redshift), Azure (Data Factory, Synapse), or Google Cloud (BigQuery, Dataflow).
  • Experience working with data lakes or data warehouse architectures.
  • Familiarity with version control systems (Git) and CI/CD pipelines.
  • Internship, coursework, or project experience related to big data or data pipeline development.

What We Offer

  • Mentorship and hands-on experience with modern big data technologies.
  • Opportunities for professional growth in data engineering and analytics.
  • Competitive salary and comprehensive benefits.
  • A collaborative, learning-oriented environment that values innovation and teamwork.
  • Access to training resources and certifications in cloud and big data platforms.

Job Types: Full-time, Permanent

Pay: £35,000.00-£45,000.00 per year

Ability to commute/relocate:

  • London: reliably commute or plan to relocate before starting work (preferred)

Application question(s):

  • Request you to mention your visa type.
  • We must fill this position urgently. Can you start immediately?

Education:

  • Bachelor\'s (preferred)

Application deadline: 19/01/2026

Information Tech Consultants

Contact Details:

Information Tech Consultants Recruitment Team