milton, on full stack developer Jobs – 121 Openings This Week

Senior Java Developer - Assistant Vice President
Citi —Mississauga, ON
- $94,300–$141,500 a year
- Full-time
- Hybrid work
- Data analysis skills
- Java
- Bachelor's
Senior Web Full Stack Engineer (Trading Platform & UI Transformation) - Vice President
Citi —Mississauga, ON
- $120,800–$170,800 a year
- Full-time
- Hybrid work
- APIs
- Communication skills
Development Administration Analyst – Automation & Process
Citi —Mississauga, ON
- $94,300–$141,500 a year
- Full-time
- Microsoft Excel
- Azure
- Computer Science
Sr Eng - Sr MTS - Full Stack Software Development
MacDonald Dettwiler and Associates Inc. —Brampton, ON
- $110,000–$140,000 a year
- Hybrid work
- Computer science
- Computer Science
- Engineering
- Disability insurance
- Dental care
Gen AI Python Developer - Assistant Vice President
Citi —Mississauga, ON
- $94,300–$141,500 a year
- Full-time
- Hybrid work
- Azure
- Oracle
- Writing skills
Principal Fullstack Software Senior Vice President
Citi —Mississauga, ON
- $145,100–$217,700 a year
- Full-time
- Hybrid work
- Azure
- Computer Science
- Engineering
JAVA Developer – Mississauga
SearchVelocity —Mississauga, ON
- Computer Science
- Java
- Linux
Fullstack Lead Analyst
Citi —Mississauga, ON
- $94,300–$141,500 a year
- Full-time
- Hybrid work
- SQL
- Project management
- Bachelor's
.NET Developer – Burlington
SearchVelocity —Burlington, ON
- Azure
- Java
- SQL
Fullstack Big Data Developer Application Development Technical Lead Analyst Vice President
Citi —Mississauga, ON
- $120,800–$170,800 a year
- Full-time
- Hybrid work
- Computer Science
- Engineering
- Java
iOS Developer – Mississauga
SearchVelocity —Mississauga, ON
- Computer Science
- Engineering
- Bachelor's
DevOps Engineer
EllisDon Group —Mississauga, ON
- $85,000–$115,000 a year
- Full-time
- Hybrid work
- Azure
- DevOps
- Engineering
1d
Senior Software Developer
Advanced Technology Search Group —Mississauga, ON
- $130,000–$160,000 a year
- Full-time
- Azure
- Computer Science
- Engineering
Senior Full Stack Engineer
Royal Bank of Canada —Mississauga, ON
- Full-time
- Azure
- DevOps
- AWS
Technology Lead - Full Stack developer
Infosys —Mississauga, ON
- $92,740–$123,375 a year
- Azure
- DevOps
- Java
Quick apply
Senior Software Developer (AOSP)
Syntronic —Oakville, ON
- $100,000–$124,000 a year
- Full-time
- Java
- C++
- Bachelor's
Quick apply
Angular developer
Tata Consultancy Services —Mississauga, ON
- Oracle
- Databases
- SQL
7d
JAVA Developer – Oakville
SearchVelocity —Oakville, ON
- Computer Science
- DevOps
- Java
- Flextime
Tech Lead Full Stack - Mississauga
Photon —Mississauga, ON
- Full-time
- Azure
- Oracle
- Java
Lead Python Full Stack Data Engineer - Vice President
Citi —Mississauga, ON
- $120,800–$170,800 a year
- Full-time
- Hybrid work
- Azure
- Doctoral degree
- Computer Science

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Senior Java Developer - Assistant Vice President

Citi -
Mississauga, ON

Apply Now

Job details

Full-time
$94,300–$141,500 a year

Qualifications

Spring Boot
Cloud architecture
JUnit
Kubernetes
Full-stack development
Relational databases
Enterprise software
Data analysis skills
NoSQL
Test-driven development
Java
Microservices
Docker
Bachelor's
Cloud development
Risk management
REST
Scripting
APIs
Financial services
Kafka
GraphQL
AI
Multithreading
gRPC
JMS
Python
Spring framework

Full job description

Job Req Id:

26950667

Location(s):

Mississauga, Ontario, Canada

Job Type:

Hybrid

Posted:

Apr. 13, 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 Senior Java Developer is responsible for designing, developing, and delivering high‑quality, scalable, and highly available applications in collaboration with cross‑functional technology teams. This role contributes to the analysis, design, development, testing, and implementation of complex systems, with a strong focus on microservices, cloud-native architectures, and real-time, high-volume applications, particularly within Risk Management and Capital Markets domains.

Key Responsibilities

Design, develop, and implement robust, scalable software solutions using Java and Spring-based frameworks with strong algorithmic and data structure foundations
Participate in feasibility studies, system analysis, time and cost estimation, IT planning, and risk assessments to support business objectives
Develop and maintain business-critical, high-volume, real-time, and highly available applications, including web-based Risk Management systems
Lead and contribute across all phases of the SDLC: requirements analysis, design, development, testing, deployment, and production support
Build and deploy microservices-based applications on cloud infrastructure using container technologies
Implement and integrate messaging and asynchronous processing solutions (e.g., Kafka, gRPC, JMS)
Ensure application reliability, performance, security, and observability using modern monitoring and logging stacks
Participate in code reviews, design discussions, and architecture sessions, contributing ideas and best practices
Provide timely support and troubleshooting for production issues, coordinating with support, infrastructure, and other development teams
Recommend and implement post‑deployment improvements, security controls, and process enhancements
Act as a subject matter expert (SME), advising senior stakeholders and mentoring junior developers
Manage multiple tasks and dependencies effectively to deliver high-quality, on-time solutions
Ensure adherence to enterprise standards, policies, regulatory requirements, and sound risk management practices

Required Qualifications

6+ years of hands-on experience developing enterprise applications as a Senior or Full Stack Developer
Strong expertise in Core Java, Spring Framework, Spring Boot, and Spring Cloud
Solid understanding of RESTful APIs, asynchronous programming, multi-threading, and parallel processing
Proven experience with microservices architecture and cloud-native development
Strong experience with container technologies such as Docker, Kubernetes, and OpenShift
Experience with messaging and streaming technologies including Kafka, gRPC, JMS, and GraphQL
Hands-on experience with persistence technologies, including relational databases, NoSQL databases, distributed caches (e.g., Ignite)
Good understanding of Test Driven Development (TDD) and testing frameworks such as JUnit
Experience with observability and monitoring tools such as ELK, Grafana, and Prometheus
Proven experience integrating and leveraging Generative AI tools and Large Language Models (LLMs) to enhance developer productivity and application capabilities

Preferred / Nice-to-Have

Experience in the financial services industry, particularly in Risk Management or Capital Markets
Working knowledge of Fixed Income products
Experience with Python scripting and data analysis
Experience with Trino
Knowledge of enterprise risk and regulatory considerations

Education

Bachelor’s degree or University degree, or equivalent practical experience

This job description provides a high-level overview of the responsibilities and qualifications required. Other job-related duties may be assigned as needed.

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

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Job Overview

Key Responsibilities

Design, develop, and implement robust, scalable software solutions using Java and Spring-based frameworks with strong algorithmic and data structure foundations

Participate in feasibility studies, system analysis, time and cost estimation, IT planning, and risk assessments to support business objectives

Develop and maintain business-critical, high-volume, real-time, and highly available applications, including web-based Risk Management systems

Lead and contribute across all phases of the SDLC: requirements analysis, design, development, testing, deployment, and production support

Build and deploy microservices-based applications on cloud infrastructure using container technologies

Implement and integrate messaging and asynchronous processing solutions (e.g., Kafka, gRPC, JMS)

Ensure application reliability, performance, security, and observability using modern monitoring and logging stacks

Participate in code reviews, design discussions, and architecture sessions, contributing ideas and best practices

Provide timely support and troubleshooting for production issues, coordinating with support, infrastructure, and other development teams

Recommend and implement post‑deployment improvements, security controls, and process enhancements

Act as a subject matter expert (SME), advising senior stakeholders and mentoring junior developers

Manage multiple tasks and dependencies effectively to deliver high-quality, on-time solutions

Ensure adherence to enterprise standards, policies, regulatory requirements, and sound risk management practices

Required Qualifications

6+ years of hands-on experience developing enterprise applications as a Senior or Full Stack Developer

Strong expertise in Core Java, Spring Framework, Spring Boot, and Spring Cloud

Solid understanding of RESTful APIs, asynchronous programming, multi-threading, and parallel processing

Proven experience with microservices architecture and cloud-native development

Strong experience with container technologies such as Docker, Kubernetes, and OpenShift

Experience with messaging and streaming technologies including Kafka, gRPC, JMS, and GraphQL

Hands-on experience with persistence technologies, including relational databases, NoSQL databases, distributed caches (e.g., Ignite)

Good understanding of Test Driven Development (TDD) and testing frameworks such as JUnit

Experience with observability and monitoring tools such as ELK, Grafana, and Prometheus

Proven experience integrating and leveraging Generative AI tools and Large Language Models (LLMs) to enhance developer productivity and application capabilities

Preferred / Nice-to-Have

Experience in the financial services industry, particularly in Risk Management or Capital Markets

Working knowledge of Fixed Income products

Experience with Python scripting and data analysis

Experience with Trino

Knowledge of enterprise risk and regulatory considerations

Education

Bachelor’s degree or University degree, or equivalent practical experience

This job description provides a high-level overview of the responsibilities and qualifications required. Other job-related duties may be assigned as needed.