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Senior Java Software Engineer Jobs in Milton, ON

Senior Software Engineer

Toronto, ON · On-site

CA$130K - CA$140K/yr

Are you a passionate Senior Software Engineer looking to make a significant impact in the fintech ... Develop scalable APIs and data services using Java (Spring Boot), Databricks and relational ...

Senior Java Developer

Mississauga, ON · On-site +1

CA$129K - CA$194K/yr

Perform software module requirement analysis, design, and test design as assigned; * Prepare ... Primary Programming Languages: Java, Bash shell and Coreutils, Perl, Python, Go, Rust * OS ...

Job Summary We're hiring a Senior Software Engineer to provide technical leadership across enterprise SaaS platforms and strategic engineering initiatives. This role focuses on Java-based platform ...

The JAVA Full Stack Senior Developer role is an intermediate level position responsible for ... Ensure software components are designed and implemented to be of high quality, reusable, and easily ...

... Software Engineer for Prime Services Data Interface (PSDI) platform - a central operational data ... We'd love to work with you if you have: * 7 - 10 years' experience with OOP Programming, Java ...

Showing results 41-60

Senior Java Software Engineer information

What does a senior Java software engineer do?

A Senior Java Software Engineer is responsible for designing, developing, and maintaining complex software applications using the Java programming language. They often lead technical projects, mentor junior developers, and collaborate with cross-functional teams to deliver high-quality software solutions. Their role includes analyzing user requirements, troubleshooting issues, optimizing code for performance, and ensuring best practices in software development. Senior Java engineers are also involved in code reviews and may contribute to architectural decisions within their organization.

What are the key skills and qualifications needed to thrive as a senior Java software engineer?

To thrive as a Senior Java Software Engineer, you need advanced proficiency in Java programming, software design principles, and a solid understanding of computer science fundamentals, often backed by a degree in computer science or a related field. Experience with frameworks like Spring, build tools such as Maven or Gradle, and version control systems like Git is typically required, along with knowledge of cloud platforms or containerization tools. Strong problem-solving abilities, effective communication, and leadership skills help you mentor team members and collaborate on complex projects. These competencies are crucial for delivering robust, scalable software solutions and leading development teams in dynamic environments.

What are some common challenges faced by senior Java software engineers when leading development projects?

Senior Java Software Engineers often encounter challenges such as balancing hands-on coding with leading and mentoring team members, managing tight project deadlines, and ensuring code quality across the team. They are also responsible for making key architectural decisions and integrating new technologies while maintaining system stability. Effective communication and collaboration with cross-functional teams, including QA, DevOps, and product managers, are essential to successfully deliver robust solutions.

What are popular job titles related to Senior Java Software Engineer jobs in Milton, ON?

For Senior Java Software Engineer jobs in Milton, ON, the most frequently searched job titles are:

What cities near Milton, ON are hiring for Senior Java Software Engineer jobs?

Cities near Milton, ON with the most Senior Java Software Engineer job openings:

Infographic showing various Senior Java Software Engineer job openings in Milton, ON as of August 2026, with employment types broken down into 1% As Needed, 86% Full Time, 9% Part Time, and 4% Contract. Highlights an 87% Physical, 5% Hybrid, and 8% Remote job distribution.

Senior Java Developer - Assistant Vice President

Mississauga, ON • On-site

Citi
Banking and Credit Intermediation • 5 - 10K employees

CA$94K - CA$141K/yr

Full-time

Re-posted 27 days ago


Citibank rating

8.4

Company rating: 8.4 out of 10

Based on 179 frontline employees who took The Breakroom Quiz

39th of 176 rated banks


Job description

The Senior Java Developer is responsible for designing, developing, and delivering highquality, scalable, and highly available applications in collaboration with crossfunctional 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 postdeployment 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 5+ 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.


What Citibank employees say

Pay

Benefits

Hours and flexibility

Workplace

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About Citigroup Inc

Sourced by ZipRecruiter

We live in an increasingly complex world. Companies these days are either born global or are going global at record speed. Business and geopolitics are forging an entirely new dynamic and consumers now expect financial services to be a seamless part of their digital lives. Citi is a bank that’s uniquely positioned for this moment. Through our vast global network and our on-the-ground expertise, we can connect the dots, anticipate change and empathize the needs of our clients and customers in ways that other banks simply cannot. Citi's mission is to serve as a trusted partner to our clients by responsibly providing financial services that enable growth and economic progress. We have set expectations for how we must act to bring our mission to life. These expectations are at the heart of our Leadership Principles – we take ownership, we deliver with pride and we succeed together.

Industry

Banking and credit intermediation

Company size

5,001 - 10,000 Employees

Headquarters location

New York City, NY, US