oakville, on full stack developer Jobs – 114 Openings This Week

Market Data Sr Developer - Python and .Net - Assistant Vice President
Citi —Mississauga, ON
- $94,300–$141,500 a year
- Full-time
- Hybrid work
- Azure
- Oracle
- Computer Science
Senior Software Engineer
Canada —Mississauga, ON
- $88,270 a year
- Full-time
- Azure
- DevOps
- Java
Quick apply
Senior Software Development Engineer in Test
EllisDon Group —Mississauga, ON
- $90,000–$120,000 a year
- Full-time
- Computer science
- Computer Science
- Engineering
(CAN) Solution Consultant II
Walmart Canada —Mississauga, ON
- $74,000–$101,750 a year
- Full-time
- Computer Science
- DevOps
- Engineering
Fullstack Application Development Group Manager Senior Vice President
Citi —Mississauga, ON
- $145,100–$217,700 a year
- Full-time
- Hybrid work
- Oracle
- Computer Science
- Engineering
DevOps / Platform Engineer
Advanced Technology Search Group —Mississauga, ON
- $90,000–$120,000 a year
- Full-time
- Computer science
- Computer Science
- DevOps
Java Developer
Konrad —Toronto, ON
- $90,000–$125,000 a year
- Hybrid work
- Azure
- Java
- Databases
- Work from home
- Flexible schedule
Quick apply
Software Development Manager
Purolator Inc —Mississauga, ON
- Computer Science
- DevOps
- Engineering
Quick apply
Senior Java Developer
Konrad —Toronto, ON
- $120,000–$145,000 a year
- Hybrid work
- Azure
- Java
- Databases
- Work from home
- Flexible schedule
Quick apply
Staff Developer
EBlock Inc. —Canada
- $170,000–$190,000 a year
- Full-time
- Remote
- Computer Science
- DevOps
- Java
- Dental care
- Paid time off

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Market Data Sr Developer - Python and .Net - Assistant Vice President

Citi -
Mississauga, ON

Apply Now

Job details

Full-time
$94,300–$141,500 a year

Qualifications

Spring Boot
CI/CD
Performance tuning
Azure
Oracle
Computer Science
CSS
Cassandra
React
Kubernetes
Relational databases
DevOps
Engineering
.NET Core
C#
Test automation
Microsoft SQL Server
NoSQL
Git
Test-driven development
Google Cloud Platform
MongoDB
.NET
Java
Master's degree
Databases
Microservices
SQL
AWS
Analysis skills
Docker
Bachelor's
JavaScript
PostgreSQL
Version control systems
Redis
RabbitMQ
REST
Angular
Software development
APIs
Financial services
Kafka
Multithreading
Jenkins
TypeScript
Communication skills
Python
HTML

Full job description

Job Req Id:

26954435

Location(s):

Mississauga, Ontario, Canada

Job Type:

Hybrid

Posted:

Apr. 28, 2026

Discover your future at Citi

Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact.

Job Overview

The Fixed Income Technology team is a dynamic and fast-paced group responsible for developing and maintaining the trading, pricing, and risk management systems that support the firm's global Fixed Income business. We work directly with traders, quantitative analysts, and risk managers to deliver innovative solutions that provide a competitive edge in the market. Our mission is to build robust, scalable, and high-performance applications that are critical to the success of the business.

We are seeking a talented and highly motivated Senior Full Stack Developer to join our team. In this role, you will be responsible for the end-to-end design, development, and deployment of sophisticated applications for the Fixed Income trading desk. The ideal candidate is a passionate technologist with a strong command of both front-end and back-end development, comfortable working with complex financial data and demanding real-time requirements. You will play a key role in building the next generation of our marketdata platform, from the user interface down to the database.

Key Responsibilities

Application Development: Design, build, test, and deploy high-quality, scalable, and robust full-stack applications for Fixed Income trading, and risk management.

Front-End Development: Create intuitive, responsive, and high-performance user interfaces using modern web technologies (e.g., React, Angular) to visualize marketdata and workflows.

Back-End Development: Develop resilient server-side logic, microservices, and APIs to handle trade processing, data management, and integration with various internal and external systems.

Collaboration: Work closely with traders, quants, and business analysts to gather requirements, understand complex financial workflows, and translate them into technical solutions.

System Design: Participate in architectural design discussions and contribute to the overall vision and strategy for the technology platform.

Code Quality: Write clean, maintainable, and well-documented code. Participate in code reviews to ensure high standards of quality and consistency.

Database Management: Design and manage database schemas and write efficient queries for both SQL and NoSQL databases.

Production Support: Provide timely support for production applications, troubleshoot issues, and ensure system stability and performance.

Agile Practices: Actively participate in an Agile development environment, including sprint planning, daily stand-ups, and retrospectives.

Required Skills and Qualifications

Education: Bachelor’s or Master’s degree in Computer Science, Engineering, or a related technical field.

Experience: 8+ years of professional experience in software development, with a proven track record as a Full Stack Developer.

Front-End:

Strong proficiency in JavaScript/TypeScript, HTML5, and CSS3.

Hands-on experience with at least one modern front-end framework (e.g., React, Angular).

Back-End:

Strong proficiency in a server-side language C# (.NET Core) and Python (Intermediate knowledge) is required.

Having coding experience in Java (Spring Boot) is a bonus.

Experience designing and building RESTful APIs and microservices.

Databases:

Solid experience with relational databases (PostgreSQL, SQL Server, Oracle) including schema design and query optimization.

Experience with NoSQL databases (MongoDB, Redis, Cassandra).

DevOps:

Proficiency with version control systems, primarily Git.

Experience with CI/CD pipelines and tools (Jenkins, Tekton, Harness).

Familiarity with containerization technologies like Docker and orchestration with Kubernetes.

Soft Skills:

Excellent problem-solving and analytical skills.

Strong communication and interpersonal skills, with the ability to work effectively with both technical and non-technical stakeholders.

Ability to work under pressure in a fast-paced environment.

Preferred Qualifications

Domain Knowledge: Prior experience in Financial Services, particularly within Fixed Income (Bonds, Swaps, Futures, Options) or other capital markets domains.

Cloud Computing: Experience with developing and deploying applications on a major cloud platform (AWS, Azure, GCP).

Messaging Systems: Experience with real-time messaging technologies like Kafka, RabbitMQ, or Solace.

Performance Tuning: Experience with low-latency programming, multithreading, and performance optimization.

Testing: Strong believer in automated testing with experience in TDD/BDD practices.

Job Family Group:

Technology

Job Family:

Applications Development

Time Type:

Full time

Primary Location Full Time Salary Range:

$94,300.00 - $141,500.00

Most Relevant Skills

Please see the requirements listed above.

Other Relevant Skills

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

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.

This job opening is for an existing job vacancy.

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.

Apply Now

Refine Your Search

full stack developer jobs in oakville, on

Market Data Sr Developer - Python and .Net - Assistant Vice President

Senior Software Engineer

Senior Software Development Engineer in Test

(CAN) Solution Consultant II

Fullstack Application Development Group Manager Senior Vice President

DevOps / Platform Engineer

Java Developer

Software Development Manager

Senior Java Developer

Staff Developer