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Contract Senior Java Developer Jobs in Mississauga, ON

Lead Java Developer

Mississauga, ON · On-site

CA$120K - CA$170K/yr

Role Summary: We are looking for a Java Engineer to design, build, and support modern web APIs ... Design, build, document, and consume RESTful APIs; ensure service contracts and versioning ...

Java Developer - Officer

Mississauga, ON · On-site

CA$79K - CA$110K/yr

The Java Developer Analyst is an junior level position within the Markets Treasury Technology team ... Acts as SME to senior stakeholders and /or other team members. Appropriately assess risk when ...

The JAVA Full Stack Senior Developer role is an intermediate level position responsible for participation in the establishment and implementation of new or revised application systems and programs in ...

Sr. Core Java Developer

Toronto, ON · Hybrid

CA$120K - CA$140K/yr

Our challenge We are seeking a highly experienced and hands-on Java Developer with a strong background in Core Java, Spring Framework, and low-latency multi-threaded programming to join our dynamic ...

Senior Core Java Developer

Toronto, ON · Hybrid

CA$135K - CA$140K/yr

Our challenge We are seeking a Senior Developer with an excellent command of Java to supplement the Equities Technology / Cash & Electronic team. We invest heavily in our front office electronic ...

Full Stack Java Developer

Mississauga, ON · Hybrid

CA$79K - CA$110K/yr

Citi is looking for a Full Stack Java Developer to join its Technology team and play a meaningful ... Opportunity to act as a subject matter expert and grow your influence across teams and senior ...

Citi Equities Technology organization is looking for an experienced and senior Java Low Latency Senior Developer to join the NAM Equities Electronic Trading team to help take our platforms to the ...

Java Developer

Mississauga, ON · On-site

CA$79K - CA$110K/yr

The Applications Development Intermediate Programmer Analyst is an intermediate level position ... Acts as SME to senior stakeholders and /or other team members. Appropriately assess risk when ...

Java Developer

Mississauga, ON · On-site

CA$79K - CA$110K/yr

The Applications Development Intermediate Programmer Analyst is an intermediate level position ... Acts as SME to senior stakeholders and /or other team members. Appropriately assess risk when ...

Java Developer, TD Securities

Toronto, ON · On-site

CA$102K - CA$125K/yr

Lead technical discussions and high-performance professionals at various capacity (junior to senior ... Java, Spring boot, DevOps, Kafka * Strong algorithmic problem-solving skills - backed by prior ...

Showing results 41-60

Contract Senior Java Developer information

What is a contract senior Java developer?

A Contract Senior Java Developer is an experienced software engineer who specializes in Java programming and works on a contract basis rather than as a permanent employee. They are typically responsible for designing, developing, and maintaining complex Java applications, often leading technical teams and ensuring code quality. Their contract status means they are hired for specific projects or time frames, providing flexibility to both the developer and the employer. Senior Java Developers usually have several years of experience and a deep understanding of Java frameworks, best practices, and software architecture.

What are some common challenges faced by contract senior Java developers when joining new projects?

Contract Senior Java Developers often encounter challenges such as quickly adapting to unfamiliar codebases, integrating with established development teams, and understanding unique business requirements. Since contracts are typically time-limited, there is pressure to deliver results efficiently while maintaining high code quality. Building rapport with permanent staff and navigating different development processes or toolchains are also common hurdles, but strong communication skills and adaptability can help overcome these challenges.

What are the key skills and qualifications needed to thrive as a contract senior Java developer, and why are they important?

To thrive as a Contract Senior Java Developer, you need advanced proficiency in Java programming, object-oriented design, and experience with frameworks like Spring or Hibernate, typically backed by a bachelor's degree in computer science or related field. Familiarity with version control systems (such as Git), CI/CD pipelines, and cloud platforms like AWS or Azure is often required, along with relevant Java certifications. Strong problem-solving, communication, and time management skills help you effectively collaborate with distributed teams and deliver quality code on tight deadlines. These skills and qualities are crucial for building robust applications, adapting to evolving project requirements, and excelling in fast-paced contract environments.

What is the difference between Contract Senior Java Developer vs Contract Java Developer?

AspectContract Senior Java DeveloperContract Java Developer
Required CredentialsJava certifications, experience in complex projectsJava certifications, basic to intermediate experience
Work EnvironmentLarge enterprise, complex systemsStartups, small to medium projects
Employer & Industry UsageFinancial, healthcare, tech firmsTech startups, software agencies
Search & Comparison IntentSeeking experienced Java roles, seniority levelEntry to mid-level Java roles

The main difference between a Contract Senior Java Developer and a Contract Java Developer lies in experience, project complexity, and industry usage. Senior developers typically handle complex systems and require advanced certifications, while Java Developers may work on simpler projects with less experience. Both roles are in demand across various industries, but the senior position emphasizes leadership and technical expertise.

What are popular job titles related to Contract Senior Java Developer jobs in Mississauga, ON?

For Contract Senior Java Developer jobs in Mississauga, ON, the most frequently searched job titles are:

What job categories do people searching Contract Senior Java Developer jobs in Mississauga, ON look for?

The top searched job categories for Contract Senior Java Developer jobs in Mississauga, ON are:

What cities near Mississauga, ON are hiring for Contract Senior Java Developer jobs?

Cities near Mississauga, ON with the most Contract Senior Java Developer job openings:

Infographic showing various Contract Senior Java Developer job openings in Mississauga, ON as of August 2026, with employment types broken down into 74% Full Time, 12% Part Time, and 14% Contract. Highlights an 81% Physical, 4% Hybrid, and 15% Remote job distribution.

Senior Java Developer, Assistance Vice President

Mississauga, ON • On-site

Citi
Banking and Credit Intermediation • 5 - 10K employees

CA$94K - CA$141K/yr

Full-time

Re-posted 21 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

This position gives an excellent opportunity for the selected candidate to play a significant role in an exciting and critical business within Citi. As a member of our highly acclaimed Technology team, this role provides the opportunity to participate in and shape the expansion and pre-eminence of our Business working together with our team of highly skilled technologists. We believe it is even more special to do this as part of Citi, a premier financial institution that is one of the biggest and best in the market, and as a part of our team that has a high visibility for our work both inside our larger organization as well as in the global Capital Markets world.

The position will enable you to leverage Citi's incomparable geographical reach, product richness, and engineering expertise and to translate these into a successful and top-of-the-class product offering for our customers. Responsibilities: Conduct tasks related to feasibility studies, time and cost estimates, IT planning, risk technology, applications development, model development, and establish and implement new or revised applications systems and programs to meet specific business needs or user areas Monitor and control all phases of development process and analysis, design, construction, testing, and implementation as well as provide user and operational support on applications to business users Utilize in-depth specialty knowledge of applications development to analyze complex problems/issues, provide evaluation of business process, system process, and industry standards, and make evaluative judgement Recommend and develop security measures in post implementation analysis of business usage to ensure successful system design and functionality Consult with users/clients and other technology groups on issues, recommend advanced programming solutions, and install and assist customer exposure systems Ensure essential procedures are followed and help define operating standards and processes Serve as advisor or coach to new or lower level analysts Has the ability to operate with a limited level of direct supervision. Can exercise independence of judgement and autonomy.

Acts as SME to senior stakeholders and /or other team members. Appropriately assess risk when business decisions are made, demonstrating particular consideration for the firm's reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations, adhering to Policy, applying sound ethical judgment regarding personal behavior, conduct and business practices, and escalating, managing and reporting control issues with transparency. Follow agile methodology and address new function/enhancement/fixes for existing batches and new batches Qualifications: 4+ years of relevant experience in Java (JDK 1.8 or more) , experience with Spring Boot, KAFKA, GRPC, ECS, Mongo, REST API, JUNIT and SQL Basics Java performance tuning Kubernetes, Openshift, Gradle, Splunk, Prometheus Knowledge of CI/CD Pipeline, Familiarity with TeamCity, Udeploy, Jenkins, SonarQube Experience with Design Patterns, Code Review, Coding standard, Unit testing with JNIT/Mockito Experience in systems analysis and programming of software applications Experience in managing and implementing successful projects Working knowledge of consulting/project management techniques/methods Ability to work under pressure and manage deadlines or unexpected changes in expectations or requirements Education: Bachelor's degree/University degree or equivalent experience Required Skills: Java 17 or more Lombok (for reducing boilerplate code) Spring boot, Spring JPA, Spring Cloud Config, Spring JDBC, Spring WebFlux Kafka, Apache Flink, Spring Kafka Docker (for containerizing applications) Kubernetes (for orchestrating containerized workloads) Helm (for managing Kubernetes applications) Autosys Relational Databases (e.g., SQL) NoSQL Databases (e.g., MongoDB, Couchbase, Redis) Microservices Architecture CI/CC This job description provides a high-level review of the types of work performed

Other job-related duties may be assigned as required. ------------------------------------------------------ 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

Get the full story on Breakroom


Citigroup Inc logo

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