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# Hadoop/Bigdata Developer

- **Company:** Citigroup Inc.
- **Location:** UK
- **Experience:** Experienced
- **Salary:** £50,867.0
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Agile Methodology, Amazon Web Services, Amazon S3, Big Data, Unix, Cloudera Impala, Software Quality, Couchbase Servers, Data Warehousing, Desktop Computing, Apache Hadoop, Hadoop Distributed File System, Apache HBase, Apache Hive, JSON, Python (Programming Language), MySQL, NoSQL, Apache Oozie, Oracle (Applications), Cloudera, Scala (Programming Language), Teradata SQL, Extensible Markup Language (XML), Apache Zookeeper, Data Logging, Apache Yarn, Snowflake, Apache Spark, Data Strategy, Information Technology, Apache Kafka, Data Delivery, Api Design
- **Published:** October 24, 2026
- **Apply:** https://www.adzuna.co.uk/jobs/details/5210480092

## About the Role

* Bachelor's degree (in Science, Computers, Information Technology or Engineering)
 * At least 4-6 years overall IT experience with experience on large & complex projects

Technical / Functional Proficiency:

 * Must have 3 yrs development experience in Hadoop / Big Data domain experience in Spark, SCALA, HDFS, Hive, S3, Couchbase and Impala.
 * Must have 3+ years of experience in DWH like Oracle (preferable) and/or Teradata or MYSQL
 * Expertise in developing shell and Unix scripting
 * Experience in Hadoop based real time and batch based architecture
 * Experience in NoSQL databases like HBase and Couchbase
 * Experience in real time messaging and ingestion including Kafka
 * Experience in Cloudera distribution CDH 7.x - Hadoop Distributed File System, YARN, ZooKeeper, Oozie
 * Experience in management and troubleshooting of Spark Jobs
 * Experience in developing frameworks and utility services including logging/monitoring
 * Experience in Java/Scala API development and use of JSON/XML/Hypermedia data formats
 * Agile development processes experiences a plus
 * Financial Services domain expertise is a plus
 * Preferred to have Python and exposure or working experience in AWS, Snowflake and other cloud environment

Leadership Skills:

 * Excellent organization skills, attention to detail
 * Demonstrated sense of responsibility and capability to deliver quickly
 * Proactive problem-solver
 * Relationship builder and team player
 * Excellent verbal, written and interpersonal communication skills
 * Good analytical and business skills
 * Ability to build strong relationships in a multi-cultural environment across all levels within IT
 * Promotes continuous process improvement especially in code quality, testability & reliability
 * Excited about rapid changes in the market/domain and being flexible to adopt newer technologies and methods.

## Description

This role is for an Apps Dev Programmer Analyst within the GIW Big Data Pivot program. The candidate will work on existing applications and frameworks for data delivery (GIW) and will be responsible for design and development of new models and frameworks, and delivering on business use cases as our data strategy is developed further. The role is within a technology group, but involves engagement with business and understanding of operating environments.