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Citi

Java Developer/ Big Data

Sorry, this job was removed at 07:17 p.m. (EST) on Friday, Jun 13, 2025
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In-Office
Mississauga, ON
In-Office
Mississauga, ON

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The Java Developer/ Big Data is an intermediate level position responsible for participation in the establishment and implementation of new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to contribute to applications systems analysis and programming activities.
Responsibilities:

  • Conduct tasks related to feasibility studies, time and cost estimates, IT planning, risk technology, applications development, model development, and establish and implement new or revised applications systems and programs to meet specific business needs or user areas
  • Monitor and control all phases of development process and analysis, design, construction, testing, and implementation as well as provide user and operational support on applications to business users
  • Utilize in-depth specialty knowledge of applications development to analyze complex problems/issues, provide evaluation of business process, system process, and industry standards, and make evaluative judgement
  • Recommend and develop security measures in post implementation analysis of business usage to ensure successful system design and functionality
  • Consult with users/clients and other technology groups on issues, recommend advanced programming solutions, and install and assist customer exposure systems
  • Ensure essential procedures are followed and help define operating standards and processes
  • Serve as advisor or coach to new or lower level analysts
  • Has the ability to operate with a limited level of direct supervision.
  • Can exercise independence of judgement and autonomy.
  • Acts as SME to senior stakeholders and /or other team members.
  • Appropriately assess risk when business decisions are made, demonstrating particular consideration for the firm's reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations, adhering to Policy, applying sound ethical judgment regarding personal behavior, conduct and business practices, and escalating, managing and reporting control issues with transparency.


Qualifications:

  • Bachelor’s or Master’s degree in Computer Science or related field.
  • Minimum of 5-8 years of professional experience in Big data technologies.
  • Strong proficiency in Big data technologies such as Hadoop, Apache Sqoop, Spark, pySpark, Impala, and Apache Hive.
  • Proficiency in programming skills in writing Java, Python and Scala scripts.
  • Proficiency in NoSQL and Relational databases such as Oracle.
  • Proficiency in ETL, Data Modeling and ability to design and implement efficient data storage solutions.
  • Experience with data visualization tools such as Tableau, and Power BI.
  • Familiarity with Git, Bitbucket, and GitHub code repository hosting platforms.
  • Strong communication, problem-solving, analytical skills and the ability to work independently as part of a team.


Education:

  • Bachelor’s degree/University degree or equivalent experience


This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required.

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Job Family Group:

Technology

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Job Family:

Applications Development

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Time Type:

Full time

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Citi is an equal opportunity and affirmative action employer.

Qualified applicants will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

Citigroup Inc. and its subsidiaries ("Citi”) invite all qualified interested applicants to apply for career opportunities. If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi.

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