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Added 10 days ago
J
Intermediate Tier 3 Support Engineer
JSI
Ottawa, ON
- Full-time
A Tier 3 Support Engineer at JSI keeps our Nova and 4Sight platforms stable and helps Technical Support and Engineering resolve the hardest issues fast. Nova is our Kubernetes-based…
Added 10 days ago
T
Senior Java Back-End Engineer, TD Securities
TD
Toronto, ON
- Full-time
TDS Enterprise Technology Solutions, Global Prime Brokerage is looking for a Full-time Senior Java Developer.
Added 10 days ago
T
Java Developer, TD Securities
TD
Toronto, ON
- Full-time
The Market Risk Technology Engineering Team is looking to on-board a self-starting, high-performing Java software engineer with a strong engineering mindset to help us grow our risk &…
Added 10 days ago
Software Development Engineer II, Scaling Planner, CloudTune
Amazon
Toronto, ON
Amazon's CloudTune organization is seeking a Software Development Engineer to join the Scaling Planner team and contribute to our suite of products across Reactive and Proactive Scaling.…
Added 10 days ago
TC
AI Deployment & Solutions Engineer
Tata Consultancy Services
Toronto, ON
- Full-time
The Forward Deployment Engineer (FDE) Technical Lead is a hands-on engineering leader responsible for solving complex problems by combining software engineering, AI/GenAI, data, cloud,…
Added 10 days ago
B
Senior Java Software Engineer
Bounteous
Montreal, QC
- $100,000 to $115,000 CAD / year
- Full-time
We are seeking a talented Java Backend Developer to design, develop, and maintain scalable enterprise applications. The ideal candidate will have strong hands-on experience with Java,…
Added 10 days ago
O
Senior Software Engineer
Okta
Toronto, ON
- $136,000 to $187,000 CAD / year
- Full-time
We are looking for a Senior Software engineer who is passionate about writing the tools to integrate and support to build large-scale, high-demand software in a fast-paced agile…
Added 10 days ago
Senior Associate Crypto Platform Engineer
Scotiabank
Toronto, ON
As a Senior Associate Crypto Platform Engineer, you will be a core member of the Crypto Engineering pillar, responsible for providing technology operations support for the deployment of…
Added 10 days ago
Senior Software Engineer
Okta
Toronto, ON
We are looking for a Senior Software engineer who is passionate about writing the tools to integrate and support to build large-scale, high-demand software in a fast-paced agile…
Added 10 days ago
M
Senior Principal Software Engineer, R&D
Mastercard
Toronto, ON
- Full-time
Senior Principal Software Engineer, R&DOverview
Added 10 days ago
HB
Graduate Software Engineer / Quant Developer / Quant Researcher - Up to $150,000 + Bonus + Benefits
Hunter Bond
Montreal, QC
- Full-time
Strong programming ability in Python, C++, Java, C#, or KDB+/q.
Added 10 days ago
C
Senior Data Engineer – Python
Citi
Mississauga, ON
- Full-time
We are seeking a skilled and experienced Senior Data Engineer with strong Python expertise to join our Engineering team. The ideal candidate is passionate about building robust, scalable…
Added 10 days ago
B
Senior Software Engineer - Java-Oracle
Broadridge
Toronto, ON
- Full-time
Design, develop, support, and monitor Java-based applications and integration solutions that process business transactions and support critical operational workflows. Build and maintain…
Added 10 days ago
B
Senior Software Engineer – Oracle Developer
Broadridge
Toronto, ON
- Full-time
…testing, performance tuning, and code quality. Exposure to Java-based applications or integrations is…
Added 10 days ago
M
Back-end Software Engineer (Kotlin)
Manulife
Waterloo, ON · Montreal, QC
- Full-time
Added 10 days ago
JG
Site Reliability Engineer
J&M Group
Toronto, ON
- Contract
Added 10 days ago
R
DevOps Developer
RBC
Toronto, ON
- Full-time
…streamlining the software delivery lifecycle? As a Senior DevOps Engineer, you will play a critical role in bridging the gap between development and operations, ensuring that our…
Added 10 days ago
TI
Performance Test Engineer
Tekgence Inc
Toronto, ON
- Contract
Performance Test Engineer (Contract) – Toronto, ON
Added 10 days ago
TT
Software Engineer
Teacup Tech Systems
Fredericton, NB
- Contract
Added 10 days ago
H
Data Engineer
HCLTech
Vancouver, BC
- Full-time
Experience developing Java based applications is an added advantage.
Added 11 days ago
WB
Software Developer II (Technical Writing)
Warner Bros. Discovery
Ottawa, ON
- Full-time
Are you a software engineer who loves to make life easier for others? Do you have a knack for turning complex technical jargon into clear, accessible information? If so, we have the ideal…
Added 12 days ago
Software Development Engineer II, Omnichannel Metrics (OCM) - Measurement, Ad Tech, and Data Science (MADS)
Amazon
Toronto, ON
…autonomous measurement platform. You'll work across Scala, Java, and Python, with deep expertise in big data technologies (Apache Spark, Kestrel, EMR), AWS infrastructure (Lambda, DynamoDB,…
Added 12 days ago
DT
Zscaler Site Reliability Engineer (SRE)
DXC Technology
Ottawa, ON
- Full-time
DXC Technology is seeking a Zscaler Site Reliability Engineer (SRE) willing to go through a Security Clearance with the Canadian government, hence the applicant must be a Canadian Citizen…
Added 12 days ago
W
Software Development Engineer (Full Stack) - Evisort AI
Workday
Vancouver, BC · Canada, BC, Vancouver
- Full-time
Evisort Engineering is growing! As a Fullstack Software Engineer, you’ll join a collaborative, cross-functional team working to enhance and expand our AI-driven contract management…
Added 12 days ago
H(
Senior Data Solutions Engineer
HOOPP (Healthcare of Ontario Pension Plan)
Toronto, ON · CA ON Toronto
- $103,000 to $153,000 CAD / year
- Full-time
…future for the healthcare community. As a Senior Data Solution Engineer, you will help keep HOOPP's investment data ecosystem reliable, governed, and ready to evolve toward a shared…

Citi

Senior Data Engineer – Python

Mississauga, ON, Canada

$120,800.00 - $170,800.00 · Full-time

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Job details

Pay: $120,800.00 - $170,800.00
Job type: Full-time
Apply by: Oct 11, 2026
Experience: 6+ years of total experience in software or data engineering.
Posting language: English
Posted: Sep 28, 2026

Original job description

We are seeking a skilled and experienced Senior Data Engineer with strong Python expertise to join our Engineering team. The ideal candidate is passionate about building robust, scalable data pipelines and platforms that power analytics, business intelligence, and data-driven decision-making across the enterprise. This role requires deep hands-on experience in Python-based data engineering, SQL development, data modeling, and ETL/ELT design, along with familiarity with both relational and NoSQL databases. Experience with Big Data technologies such as PySpark, and exposure to platforms like Databricks or Starburst, will be considered a strong advantage. The successful candidate will thrive in a collaborative, fast-paced environment and take ownership of end-to-end data solutions.

Responsibilities

Design, develop, and maintain scalable Python-based data pipelines for ingestion, transformation, and distribution of data across enterprise platforms.
Build reusable Python libraries, frameworks, and automation utilities to support data engineering workflows.
Develop and optimize complex SQL queries, stored procedures, and database objects across multiple relational database platforms.
Design and implement ETL/ELT solutions including staging frameworks, incremental processing, data reconciliation, and error handling.
Develop and maintain logical and physical data models to support both operational and analytical use cases.
Work with NoSQL databases (e.g., MongoDB) to design data structures and access patterns suited to non-relational workloads.
Build and maintain data pipelines using PySpark for large-scale distributed data processing where applicable.
Implement data quality, validation, and completeness controls to ensure accuracy and reliability across data products.
Collaborate with data scientists, analysts, software engineers, and business stakeholders to understand requirements and deliver high-quality data solutions.
Contribute to CI/CD pipelines for automated testing, deployment, and version control of data workflows.
Participate in code reviews, troubleshooting, debugging, and production support of data systems.
Support data governance, security standards, and compliance requirements across all data assets.

Qualifications

Strong proficiency in Python for data engineering, including data transformation, orchestration, workflow automation, and utility development.
Expert-level SQL skills across relational databases (PostgreSQL, Oracle, SQL Server, or MySQL).
Solid experience in data modeling - relational and dimensional modeling (Star/Snowflake schemas).
Hands-on experience designing and building ETL/ELT pipelines using Python-based frameworks .
Working experience with NoSQL databases, particularly MongoDB.
Experience with PySpark and distributed data processing frameworks for large-scale data workloads is a plus.
Familiarity with Databricks and/or Starburst is a plus.
Hands-on experience with AI Development Tools such as Claude Code, Devin AI, Cursor, Copilot etc.
Knowledge of data formats including Parquet, Avro, and JSON, and storage platforms such as HDFS or cloud object stores.
Proficiency with version control (Git) and CI/CD practices for data engineering workflows.
Familiarity with data orchestration tools such as Apache Airflow or equivalent schedulers.
Basic working knowledge of Java is a plus.
Strong analytical, problem-solving, and communication skills with the ability to work across technical and non-technical teams.

Experience

6+ years of total experience in software or data engineering.
Hands-on experience specifically in Python-based data engineering, SQL development, ETL design, and data modeling.
Proven experience building and maintaining production-grade data pipelines and platforms at enterprise scale.
Demonstrated experience working with both relational (PostgreSQL, Oracle, SQL Server) and NoSQL (MongoDB) databases in real-world projects.
Experience working in regulated or highly process-oriented environments, preferably within Financial Services.

Education

Bachelor’s or Master’s degree in Computer Science, Software Engineering, or an equivalent technical field.

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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Primary Location Full Time Salary Range:

$120,800.00 - $170,800.00

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Most Relevant Skills

Please see the requirements listed above.

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Other Relevant Skills

For complementary skills, please see above and/or contact the recruiter.

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Automated Processing and AI

We use automated processing, including artificial intelligence, for our legitimate business interests (or our reasonable and appropriate business purposes) to identify and align the candidate's skills and abilities with a specific job opening. Additionally, if you so choose, or consent, we can match your skills and abilities to other suitable roles at Citi.

Importantly, all our hiring processes and decisions, including determining your suitability for a role, are conducted, checked, and decided by individuals. Our automated processing and AI do not involve relying on automatic or autonomous decision-making. Please refer to any Jurisdictional Considerations, with specific provisions for your country (where relevant) for further details.

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This job opening is for an existing job vacancy.

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Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law.

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.

View Citi’s EEO Policy Statement and the Know Your Rights poster.

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More about this job

Responsibilities

Design, develop, and maintain scalable Python-based data pipelines for ingestion, transformation, and distribution across enterprise platforms. Collaborate with cross-functional teams to implement data quality controls and deliver high-quality data solutions.

Requirements

Requires 6+ years of experience in software or data engineering with strong proficiency in Python, SQL, and ETL/ELT design. Candidates must have experience with relational and NoSQL databases, as well as distributed data processing frameworks like PySpark.

Skills

Python
SQL
Data Engineering
ETL/ELT
PySpark
Data Modeling
NoSQL
MongoDB
Databricks
Starburst
Git
CI/CD
Apache Airflow
Data Pipelines
Cloud Object Stores
Distributed Data Processing

Visa sponsorship

Not detected in the job text

Keywords

Python
SQL
Data Engineering
ETL
ELT
PySpark
Data Modeling
NoSQL
MongoDB
Databricks
Starburst
PostgreSQL
Oracle
SQL Server
Git
CI/CD
Apache Airflow
Parquet
Avro
JSON
HDFS
Cloud Object Stores
Data Governance
Data Quality
Financial Services
Automation
Distributed Systems
Software Engineering
Data Pipelines
Analytics

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