Big Data Lead Developer Job at Citi (Mississauga)

Big Data Engineering Lead

The Senior Big Data engineering lead will play a pivotal role in designing, impl...

Location

India , Chennai

Salary:

Not provided

Citi

Expiration Date

Until further notice

Requirements

Bachelor's or Master’s degree in Computer Science, Information Technology, or related field
Atleast 10 -12 years overall software development experience on majorly working with handling application with large scale data volumes from ingestion, persistence and retrieval
Deep understanding of big data technologies, including Hadoop, Spark, Kafka, Flink, NoSQL databases, etc.
Experience with Bigdata technologies Developer Hadoop, Apache Spark, Python, PySpark
Strong programming skills in languages such as Java, Scala, or Python
Excellent problem-solving skills with a knack for innovative solutions
Strong communication and leadership abilities
Proven ability to manage multiple projects simultaneously and deliver results

Job Responsibility

Lead the design and development of a robust and scalable big data architecture handling exponential data growth while maintaining high availability and resilience
Design complex data transformation processes using Spark and other big data technologies using Java, Pyspark or Scala
Design and implement data pipelines that ensure data quality, integrity, and availability
Collaborate with cross-functional teams to understand business needs and translate them into technical requirements
Evaluate and select technologies that improve data efficiency, scalability, and performance
Oversee the deployment and management of big data tools and frameworks such as Hadoop, Spark, Kafka, and others
Provide technical guidance and mentorship to the development team and junior architects
Continuously assess and integrate emerging technologies and methodologies to enhance data processing capabilities
Optimize big data frameworks, such as Hadoop, Spark, for performance improvements and reduced processing time across distributed systems
Implement data governance frameworks to ensure data accuracy, consistency, and privacy across the organization, leveraging metadata management and data lineage tracking

Fulltime

Data Quality & Controls Big Data Tech Lead

The Global Olympus Data Fabric team comprise of cross asset application used acr...

Location

Canada , Mississauga

Salary:

Not provided

Citi

Expiration Date

Until further notice

Requirements

6+ years of relevant experience in managing large scale applications including data quality and controls
Experience in managing and implementing successful projects
Knowledge of Big Data/Hadoop, Spark, SQL and scripting, MS Excel technology is required
Experience with Data Quality and Business/System Controls is a plus
Extensive experience system analysis and in programming of software applications
Subject Matter Expert (SME) in at least one area of Applications Development
Ability to adjust priorities quickly as circumstances dictate
Demonstrated leadership and project management skills
Consistently demonstrates clear and concise written and verbal communication

Job Responsibility

Partner with multiple management teams to ensure appropriate integration of functions to meet goals as well as identify and define necessary system enhancements to deploy new products and process improvements
Resolve variety of high impact problems/projects through in-depth evaluation of complex business processes, system processes, and industry standards
Provide expertise in area and advanced knowledge of applications programming and ensure application design adheres to the overall architecture blueprint
Utilize advanced knowledge of system flow and develop standards for coding, testing, debugging, and implementation
Develop comprehensive knowledge of how areas of business, such as architecture and infrastructure, integrate to accomplish business goals
Provide in-depth analysis with interpretive thinking to define issues and develop innovative solutions
Serve as advisor or coach to mid-level developers and analysts, allocating work as necessary
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

Fulltime

Big Data Program Lead

As part of Citi’s broad transformation strategy, Data Engineering group is under...

Location

India , Chennai

Salary:

Not provided

Citi

Expiration Date

Until further notice

Requirements

10+ years relevant experience on building data engineering solutions for large scale Operational and Data Warehouse implementations
consistently demonstrates clear and concise written and verbal communication
management and prioritization skills
8+ years experience in building enterprise data warehouse systems in finance sector is preferable
8+ years of relevant experience in Application Development for Enterprise
must Technical Skills - Java/Scala, Hadoop, Python, Hive, Impala, Kafka and Elastic
Apache Iceberg
Databases: Oracle
Netezza
must Core Skills - 10+ years experience in handling Large Teams: IT Projects Design and Development

Job Responsibility

provides architectural vision, ensuring architecture conforms to enterprise blueprints
develops architecture, strategy, planning, and problem solving solutions on an enterprise level
interfaces across several channels, acting as a visionary to proactively assist in defining direction for future projects
maintains continuous awareness of business, technical, and infrastructure issues and acts as a sounding board or consultant to aid in the development of creative solutions
experience with developing metadata driven frameworks for data processing/transformation and built real-time processing solutions
hands-on data engineer with core skillset on Big Data stack of technologies including but not limited to, Spark with Scala, Hive, Impala, Kafka, Solace, Iceberg format tables etc.
position requires excellent communication skills to drive the change required and ability to translate the vision into technical artifacts
identify and apply optimization techniques to improve performance of existing applications
provides thought leadership in subjects that are key to the business
provides senior-level technical consulting and mentoring during design and development for highly complex and critical data projects

Fulltime

Big Data Lead Developer (Hadoop/Java/Spark/Scala/Python)

The Applications Development Technology Lead Analyst is a senior level position ...

Location

India , Chennai

Salary:

Not provided

Citi

Expiration Date

Until further notice

Requirements

8-10 years of relevant experience in Big Data Development
Sr. Java resource with experience in Java/J2EE, Hadoop, Scala, Hive, Impala, Kafka and Elastic
Good knowledge of design patterns and providing solutions to complex design issues, identification and resolution of code issues
Hands-On Experience in managing application development using Spark(Scala, Python or Java), SQL, Linux Based Hadoop Ecosystem (HDFS, Impala, Hive, HBase, etc.)
Experience as senior level in an Applications Development role
Proven Solution Delivery skills
Basic knowledge of finance industry practices and standards
Excellent analytical and process-based skills, i.e. process flow diagrams, business modelling, and functional design
Bachelor’s degree/University degree or equivalent experience

Job Responsibility

Manage one or more Applications in an effort to accomplish established goals as well as conduct personnel duties for team like hiring and training
Design and Develop real time and batch data transformation processes using wide range of technologies using Hadoop, Spark Stream, Spark SQL, Python, Hive etc.
Design and Develop programs to build functionalities, in the next generation Big-data platform which is also authorize data redistributor
Ability to translate architecture and low-level requirements to design and code using Big-data tools and processes
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
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
Consult with users/clients and other technology groups on issues, recommend advanced programming solutions, and install and assist customer exposure systems
Review and analyze proposed technical solutions for projects
Impact the Applications Development area through monitoring delivery of end results, participate in budget management, and handling day-to-day staff management issues, including resource management and allocation of work within the team/project

What we offer

Best-in-class benefits
Global Benefits
Equal opportunity and affirmative action employer

Fulltime

Big Data Spark Development Vice President

We are seeking a Software/Application Dev Lead Analyst for Global Data Platform ...

Location

India , Chennai

Salary:

Not provided

Citi

Expiration Date

Until further notice

Requirements

Bachelor's or master's degree in computer science, Information Technology, or equivalent
Minimum 15 years of work experience
At least 8 years of experience of leading Enterprise Bigdata Development and Data Science (Analytical) teams
Experience developing Applications for High volume instanced payments and/or AML industry is a significant plus
Experience working in Banking technology is preferred
Very strong Engineer excellence knowledge and experience like Data patterns, Pipelines, DQs, Recons, Governance, Scalable application traits and cloud portable coding
Project management, interpersonal, and communication skills, with high attention to details
Must-Have: Experience in building enterprise-grade transaction management and AML system with focus on recovery, stability, reliability, scalability and performance
Must-Have: Strong hand-on seasoned engineer/lead in Bigdata data store application building using enterprise SDLC/Agile methodology, Data modelling/Architect, supporting Operational and production systems
Must-Have: Strong technical skills and hand-on in Spark/Scala, Kafka, Hadoop, Couchbase, HBASE and Snowflake

Job Responsibility

Manage one or more Applications Development teams to accomplish established goals as well as conduct personnel duties for team (e.g. performance evaluations, hiring and disciplinary actions)
Utilize in-depth knowledge and skills across multiple Applications Development areas to provide technical oversight across systems and applications
Review and analyze proposed technical solutions for projects
Contribute to formulation of strategies for applications development and other functional areas
Develop comprehensive knowledge of how areas of business integrate to accomplish business goals
Provide evaluative judgment based on analysis of factual data in complicated and unique situations
Impact the Applications Development area through monitoring delivery of end results, participate in budget management, and handling day-to-day staff management issues, including resource management and allocation of work within the team/project
Ensure essential procedures are followed and contribute to defining standards negotiating with external parties when necessary
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, as well as effectively supervise the activity of others and create accountability with those who fail to maintain these standards

Fulltime

Big Data / Scala / Python Engineering Lead

The Applications Development Technology Lead Analyst is a senior level position ...

Location

India , Chennai

Salary:

Not provided

Citi

Expiration Date

Until further notice

Requirements

At least two years (Over all 10+ hands on Data Engineering experience) of experience building and leading highly complex, technical data engineering teams
Lead data engineering team, from sourcing to closing
Drive strategic vision for the team and product
Experience managing an data focused product, ML platform
Hands on experience relevant experience in design, develop, and optimize scalable distributed data processing pipelines using Apache Spark and Scala
Experience managing, hiring and coaching software engineering teams
Experience with large-scale distributed web services and the processes around testing, monitoring, and SLAs to ensure high product quality
7 to 10+ years of hands-on experience in big data development, focusing on Apache Spark, Scala, and distributed systems
Proficiency in Functional Programming: High proficiency in Scala-based functional programming for developing robust and efficient data processing pipelines
Proficiency in Big Data Technologies: Strong experience with Apache Spark, Hadoop ecosystem tools such as Hive, HDFS, and YARN

Job Responsibility

Partner with multiple management teams to ensure appropriate integration of functions to meet goals as well as identify and define necessary system enhancements to deploy new products and process improvements
Resolve variety of high impact problems/projects through in-depth evaluation of complex business processes, system processes, and industry standards
Provide expertise in area and advanced knowledge of applications programming and ensure application design adheres to the overall architecture blueprint
Utilize advanced knowledge of system flow and develop standards for coding, testing, debugging, and implementation
Provide in-depth analysis with interpretive thinking to define issues and develop innovative solutions
Serve as advisor or coach to mid-level developers and analysts, allocating work as necessary

Fulltime

Application Development Lead

This role is for a application dev lead within the FI Data team, responsible for...

Location

India , Pune

Salary:

Not provided

Citi

Expiration Date

Until further notice

Requirements

10+ years of demonstrable and relevant experience in software development, with at least 3-5 years in a leadership role within a high-performing technical team
strong understanding of Java and/or Python 3.6, with the ability to guide and review complex solutions
solid understanding of REST API development, including best practices for design, security, and scalability
demonstrable experience in driving the creation of reusable, testable, and efficient code with proper error and exception handling, and establishing coding standards
extensive experience with the design and implementation of cloud-native applications and deployment via Kubernetes / Openshift, including strategic decision-making on cloud architecture
expertise in big data computation platforms (Flink, Spark, Apache Beam) or big data distribution platforms (Hadoop, Druid, Pinot, Trino, Ignite), and a track record of leading teams leveraging these technologies
hands-on experience in handling various data structures, and the ability to guide complex data modeling decisions
proven leadership in establishing and maturing Continuous Integration and Continuous Delivery environments
familiarity with TeamCity, Sonarqube, and Jenkins
extensive experience with the SDLC lifecycle and in leading and coaching within an Agile environment (Scrum/Kanban)

Job Responsibility

Lead and oversee the design and development of high-performance green-field data analytics products for a Tier 1 bank, ensuring architectural excellence and alignment with business goals
collaborate strategically with other dev leads in US and Canada, translating complex business requirements into technical roadmaps and fostering a partnership approach to deliver impactful solutions
drive innovation within the team, encouraging the exploration and implementation of cutting-edge data visualization and analytics solutions
mentor and guide team members in applying an engineering mindset, fostering deep understanding of use-cases, developing robust estimation techniques for volume and compute velocity, and openly addressing implementation limitations
lead the evaluation and development of Proof-of-Concepts (POCs) for new strategic initiatives, guiding the team to convert successful prototypes into robust enterprise solutions
foster a culture of continuous learning and growth within the team, empowering members to research, learn, and recommend emerging technologies
provide leadership and strategic direction for post-release support, collaborating closely with business, development, and support groups to ensure operational stability and client satisfaction
manage team performance, including goal setting, performance reviews, career development, and providing regular feedback to foster professional growth
participate in hiring processes, attracting, interviewing, and onboarding top talent to grow the team's capabilities
facilitate effective communication within the team and across different stakeholders, ensuring transparency and alignment.

Fulltime

Data Engineering Lead

The Engineering Lead Analyst is a senior level position responsible for leading ...

Location

Singapore , Singapore

Salary:

Not provided

Citi

Expiration Date

Until further notice

Requirements

10-15 years of hands-on experience in Hadoop, Scala, Java, Spark, Hive, Kafka, Impala, Unix Scripting and other Big data frameworks
4+ years of experience with relational SQL and NoSQL databases: Oracle, MongoDB, HBase
Strong proficiency in Python and Spark Java with knowledge of core spark concepts (RDDs, Dataframes, Spark Streaming, etc) and Scala and SQL
Data Integration, Migration & Large Scale ETL experience (Common ETL platforms such as PySpark/DataStage/AbInitio etc.) - ETL design & build, handling, reconciliation and normalization
Data Modeling experience (OLAP, OLTP, Logical/Physical Modeling, Normalization, knowledge on performance tuning)
Experienced in working with large and multiple datasets and data warehouses
Experience building and optimizing ‘big data’ data pipelines, architectures, and datasets
Strong analytic skills and experience working with unstructured datasets
Ability to effectively use complex analytical, interpretive, and problem-solving techniques
Experience with Confluent Kafka, Redhat JBPM, CI/CD build pipelines and toolchain – Git, BitBucket, Jira

Job Responsibility

Define and execute the data engineering roadmap for Global Wealth Data, aligning with overall business objectives and technology strategy
Lead, mentor, and develop a high-performing, globally distributed team of data engineers, fostering a culture of collaboration, innovation, and continuous improvement
Oversee the design and implementation of robust and scalable data pipelines, data warehouses, and data lakes, ensuring data quality, integrity, and availability for global wealth data
Evaluate and select appropriate technologies and tools for data engineering, staying abreast of industry best practices and emerging trends specific to wealth management data
Continuously monitor and optimize data pipelines and infrastructure for performance, scalability, and cost-effectiveness
Partner with business stakeholders, data scientists, portfolio managers, and other technology teams to understand data needs and deliver effective solutions
Implement and enforce data governance policies and procedures to ensure data quality, security, and compliance with relevant regulations

What we offer

Equal opportunity employer commitment
Accessibility and accommodation support
Global workforce benefits

Fulltime

Big Data Lead Developer

Citi

Location:
Canada , Mississauga

Category:
IT - Software Development

Contract Type:
Employment contract

Salary:

Job Description:

Job Responsibility:

Requirements:

Nice to have:

Additional Information:

Job Posted:
November 14, 2025

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November 14, 2025