Full-Time

Senior Spark Developer

Posted on 9/2/2025

Citi

Citi

10,001+ employees

Global financial services including banking, investment

Compensation Overview

$120.8k - $170.8k/yr

Mississauga, ON, Canada

In Person

Category
Data & Analytics (1)
Required Skills
NoSQL
Data Structures & Algorithms
Apache Spark
Java
Scala
SCRUM
Hadoop
Yarn
Linux/Unix
Databricks
Cassandra
Requirements
  • 6+ years of application development experience, with a significant focus on Java/J2EE and Apache Spark
  • Strong command of Object-Oriented Programming (OOP) principles and design patterns in Java
  • Excellent understanding of data structures and algorithms, and their application in Spark development
  • Proven experience developing complex Java/J2EE applications, encompassing all areas of the technology stack
  • Thorough knowledge and hands-on experience with Hadoop, MapReduce, YARN, Sqoop, Pig, Hue, Unix, Impala, and Cassandra on Mesos
  • Extensive experience designing, developing, and deploying Spark applications in a production environment, handling large volumes of data
  • Deep understanding of Spark architecture, including Spark SQL, Spark Streaming, RDDs, and DataFrames
  • Experience with ETL and BI tools is a plus
  • Experience working in an agile environment using Scrum methodologies
  • Expertise in designing and optimizing software solutions for performance and stability, particularly in the context of Spark
  • Expertise in troubleshooting and problem-solving complex technical issues
  • Experience with test-driven development (TDD)
  • Cloudera certification (CCDH) is an added advantage
  • Bachelor's degree in Computer Science, Engineering, or a related field
Responsibilities
  • Design, develop, and implement complex Spark applications for processing large datasets, leveraging expertise in distributed computing and data manipulation techniques
  • Partner with management teams to integrate Spark-based solutions into existing data infrastructure, ensuring seamless data flow and optimal performance
  • Resolve critical data processing challenges by evaluating complex business processes, system processes, and industry standards, applying deep understanding of Spark's capabilities
  • Provide technical leadership and mentorship to other engineers, guiding them on Spark best practices and promoting efficient development strategies
  • Develop and maintain coding standards, testing procedures, and debugging techniques specifically for Spark applications
  • Contribute to the overall data architecture, ensuring that Spark solutions align with business goals and integrate effectively with other data technologies
  • Appropriately assess risk when making technical decisions, considering factors such as data security, performance, and scalability
  • Drive compliance with applicable laws, rules, and regulations, adhering to company policies and demonstrating sound ethical judgment
Desired Qualifications
  • Experience with cloud-based Spark platforms (e.g., Databricks, AWS EMR, Azure HDInsight)
  • Experience with other big data technologies (e.g., Kafka, Hive, HBase)
  • Experience with data visualization tools and techniques

Citi provides financial services including consumer banking, credit, investment banking, and wealth management to individuals, corporations, and governments. The company operates by earning interest on loans and collecting fees for managing investments, processing trades, and facilitating cross-border transactions through its digital platforms. Unlike many local banks, Citi maintains a physical and digital presence in over 160 countries, allowing it to serve as a single partner for clients with global financial needs. Its goal is to drive growth and profitability for its clients and shareholders while supporting environmental and social sustainability initiatives.

Company Size

10,001+

Company Stage

IPO

Headquarters

New York City, New York

Founded

1812

Simplify Jobs

Simplify's Take

What believers are saying

  • Investment banking fees rose 12% YoY in Q1 2026, fueled by AI-driven M&A acceleration.
  • Hired 60 managing directors from 20 rivals, boosting banking revenues 15% to $1.8bn in Q1 2026.
  • $30bn share buyback signals confidence, targeting 14-15% ROTE by 2031 post-restructuring.

What critics are saying

  • JPMorgan erodes Citi's #5 investment banking rank, diverting mandates within 12-24 months.
  • Investor backlash to 2031 ROTE target causes share underperformance versus Bank of America in 6-12 months.
  • Stripe captures cross-border volumes as Citi's tech lags low-cost alternatives in 24-36 months.

What makes Citi unique

  • Citi leads global cross-border payments, enabling near-instant transfers to Mastercard debit cards across 65 origination countries.
  • Citi expanded TTS non-interest revenue 98% YoY to $1.1bn in Q4 2024 via US dollar clearing growth.
  • Citi operates in 160 countries, serving 200 million accounts with unmatched global network scale.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

Life Insurance

Disability Insurance

401(k) Retirement Plan

401(k) Company Match

Wellness Program

Paid Vacation

Paid Sick Leave

Paid Holidays

Company News

Yahoo Finance
Apr 14th, 2026
Banks report strong profits but warn of rising energy prices hitting consumers

America's largest banks reported strong first-quarter profits driven by robust investment banking activity and a resilient economy, though executives warned about mounting risks from rising energy prices and geopolitical uncertainty. JPMorgan Chase posted a profit of $16.49 billion, up 13% year-on-year, whilst Wells Fargo earned $5.25 billion and Citigroup reported $5.79 billion. Investment banking fees surged, with JPMorgan seeing a 30% jump and Citigroup a 12% increase in advisory fees, fuelled by market volatility and corporate dealmaking. However, JPMorgan CEO Jamie Dimon cautioned about "an increasingly complex set of risks", including wars, energy prices and trade tensions. Wells Fargo noted customers allocating more spending to petrol whilst cutting discretionary purchases, signalling potential downstream economic impacts from elevated oil prices.

The Associated Press
Apr 14th, 2026
Banks report strong Q1 profits but warn rising energy prices threaten consumer spending

America's largest banks reported strong first-quarter profits driven by investment banking activity and a resilient economy, but executives warned about emerging economic headwinds from rising energy prices and geopolitical uncertainty. JPMorgan Chase posted a 13% profit increase to $16.49 billion, with investment banking fees jumping 30%. Wells Fargo earned $5.25 billion whilst Citigroup reported $5.79 billion in profits. The gains came amid market volatility and increased merger activity. However, JPMorgan CEO Jamie Dimon cited "an increasingly complex set of risks" including wars, energy prices and trade tensions. Wells Fargo's CFO noted consumers allocating more spending towards petrol whilst reducing discretionary purchases. Dimon warned that higher oil prices' impact "will likely take some time to materialise" if they persist.

Yahoo Finance
Apr 14th, 2026
Citi stock poised to jump as Wall Street loves the name, says Jim Cramer

Citigroup has raised interest among investors, with Jim Cramer highlighting strong market sentiment towards the stock. Following earnings, Cramer noted that Citigroup is "love, love, love by everybody on Wall Street" and expects the stock to jump higher. The bank delivered solid quarterly results, with 8% revenue growth and 35% earnings per share increase, excluding one-time charges. Net interest income rose 14%, beating expectations. However, results were mixed across divisions, with services, banking and fixed income performing well, whilst equity trading and personal banking fell short. Trading at a significant discount to peers despite rising 66% last year, Citigroup remains attractive. CEO Jane Fraser indicated the bank's transformation efforts are over 80% complete, though questions remain about future growth once self-help measures conclude.

Yahoo Finance
Apr 14th, 2026
Citi beats Q1 profit estimates with $5.8B net income as dealmaking surges 14%

Citigroup beat first-quarter profit estimates on Tuesday, reporting net income of $5.8 billion, or $3.06 per diluted share, compared to $4.1 billion in the prior-year period. The result exceeded analysts' estimate of $2.63 per share. Revenue rose 14% whilst net income grew 42%, driven by strong dealmaking activity. Investment banking fees increased 19% to $1.3 billion, with growth in advisory and equity capital markets. Services revenue climbed 17%, and markets crossed $7 billion in revenue. Global investment banking revenue reached $28.2 billion in the first quarter, the highest since 2021. Chief executive Jane Fraser attributed the performance to softer regulation under President Trump and the AI boom. The bank remains on track to deliver its 10-11% return on tangible common equity target.

Structured Retail Products
Apr 13th, 2026
MerQube secures Series C funding from 7RIDGE and Deutsche Börse to scale derivatives-linked ETF platform

MerQube, a US-based index provider specialising in rules-based and derivatives-enabled strategies, has closed a Series C funding round led by 7RIDGE and Deutsche Börse Group. Existing investors including Allianz Life Ventures, Citi, Intel Capital, J.P. Morgan, Laurion Capital Management and UBS also participated, though the funding amount was not disclosed. The company plans to use the investment to scale its technology platform and expand in derivatives-linked ETF and structured product markets. MerQube focuses on providing customised index solutions and data-driven strategies for institutional clients.

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