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Senior Java Developer C2C Jobs in Toronto, ON (NOW HIRING)

We are seeking a talented and passionate Senior Developer to join our Operations Workbench Scrum ... Utilize a modern tech stack, including Java, Kubernetes, Docker, and Kafka, to build cutting-edge ...

We're looking for a skilled Java Developer to enhance our platform and integrate it with trading systems across markets. Role Overview/What You'll Do Collaborate with management to integrate ...

About The Role As a Senior Java Full Stack Developer , demonstrate ownership, accountability, and long-term thinking by delivering secure, reliable, maintainable, and business-aligned technology ...

Senior Java Engineer

Mississauga, ON · On-site

CA$94K - CA$141K/yr

Position Summary We are seeking an experienced Senior Java Engineer with exceptional analytical and problem-solving skills to join our global team. The ideal candidate will be a hands-on Java/J2EE ...

Showing results 41-60

Senior Java Developer C2C information

What is a senior Java developer C2C?

A Senior Java Developer C2C is an experienced software engineer who specializes in Java programming and works on a 'Corp-to-Corp' (C2C) basis. This means the developer provides services through their own corporation or business entity, rather than as a direct employee or independent contractor. Senior Java Developers are responsible for designing, developing, and maintaining complex Java applications, leading projects, and mentoring junior developers. C2C arrangements are common in IT contracting, particularly in the United States, and typically require the developer to handle their own business taxes and legal compliance.

What are the key skills and qualifications needed to thrive as a senior Java developer C2C?

To thrive as a Senior Java Developer (C2C), you need expert-level proficiency in Java, object-oriented programming, system architecture, and a solid foundation in computer science, usually supported by a bachelor’s degree or higher. Familiarity with frameworks like Spring, Hibernate, RESTful APIs, version control systems such as Git, and build tools like Maven or Gradle, along with experience in Agile methodologies, is typically required. Strong problem-solving, leadership, and communication skills help you collaborate effectively with cross-functional teams and mentor junior developers. These skills and qualities are crucial for delivering robust, scalable software solutions and ensuring project success in dynamic environments.

What are some common challenges senior Java developers face when working on C2C (Corp-to-Corp) contracts?

Senior Java Developers working on C2C contracts often encounter challenges such as quickly adapting to new project environments, understanding diverse client requirements, and integrating with teams that may have established workflows or legacy systems. Additionally, they need to manage their own business operations, including invoicing and compliance, while maintaining high productivity and technical standards. Effective communication and self-management are essential, as C2C roles may offer less direct supervision compared to traditional employment.

What is the difference between Senior Java Developer C2C vs Java Software Engineer?

AspectSenior Java Developer C2CJava Software Engineer
CredentialsJava certifications, experience in Java SE/EEJava certifications, similar experience
Work EnvironmentContract-based, client-site or remote, project-focusedFull-time, in-house or remote, development team
Industry UsageFreelance/contract roles across industriesPermanent roles in tech companies or enterprises
Search IntentContract Java roles, freelance Java jobsFull-time Java developer positions

While both roles require Java expertise and similar certifications, Senior Java Developer C2C typically involves contract-based, project-specific work often on a freelance basis. Java Software Engineer usually refers to full-time, in-house roles within organizations. The choice depends on whether you're seeking flexible contract work or a permanent position.

What are the most commonly searched types of Java Developer C2C jobs in Toronto, ON?

The most popular types of Java Developer C2C jobs in Toronto, ON are:

What are popular job titles related to Senior Java Developer C2C jobs in Toronto, ON?

For Senior Java Developer C2C jobs in Toronto, ON, the most frequently searched job titles are:

What job categories do people searching Senior Java Developer C2C jobs in Toronto, ON look for?

The top searched job categories for Senior Java Developer C2C jobs in Toronto, ON are:

Infographic showing various Senior Java Developer C2C job openings in Toronto, ON as of August 2026, with employment types broken down into 84% Full Time, 2% Part Time, and 14% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution.

Senior Java Developer - Vice President

Mississauga, ON • On-site

Citigroup Inc.
Banking and Credit Intermediation • 5 - 10K employees

Other

Re-posted 26 days ago


Citibank rating

8.4

Company rating: 8.4 out of 10

Based on 179 frontline employees who took The Breakroom Quiz


Job description

This is a Senior Java Developer position responsible for leading the design, development, and deployment of scalable, high-performance enterprise applications. The overall objective of this role is to collaborate with cross-functional teams to deliver business requirements and mentor junior engineers.

Responsibilities:

  • Take complete ownership of business initiatives frominceptionto production. Collaborate with product managers and business stakeholders to define scope, estimate effort, andidentifytechnical dependencies.
  • Resolve variety of high impact problems/projects through in-depth evaluation of complex business processes, system processes, and industry standards
  • Translate complex business requirements into scalable, resilient, and secure technical designs
  • Utilize advanced knowledge of system flow and develop standards for coding, testing, debugging, and implementation
  • Define,maintain, and promote robust architectural patterns, coding standards, and best practices for large-scale, high-throughput enterprise web applications.
  • Provide in-depth analysis with interpretive thinking to define issues and develop innovative solutions
  • Serve as advisor or coach to mid-level developers and analysts,allocatingwork as necessary
  • Conduct rigorous code reviews, mentor junior and mid-level developers, and foster a culture of continuous learning and technical excellence
  • 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.

Qualifications:

  • 10+ years of professional experience in software engineering and application development
  • Deep, authoritative knowledge of core Java, including multi-threading, concurrency, memory management, and performance tuning
  • Extensive hands-on experience with Spring Framework and Spring Boot.
  • Strong understanding of RESTful API design,microservicesarchitecture, enterprise integrationpatternsand web application security risks.
  • Strongproficiencyin Oracle Database, including advanced SQL, PL/SQL development, query optimization, indexing strategies, and database schema design.
  • Proven expertise in designing, deploying, and managing scalable microservices within containerized environments, with hands-on experience in orchestration platforms such as Red Hat OpenShift, AWS ECS, or Kubernetes.
  • Experience in implementing and managing distributed caching solutions such asHazelcastorRedistooptimizeapplication performance, manage session state, and reduce database load
  • Ability to adjust priorities quickly as circumstances dictate
  • Consistentlydemonstratesclear and concise written and verbal communication

Education:

  • Bachelor's degree/University degree or equivalent experience

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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:

$120800,00 - $170800,00

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Most Relevant Skills

Please see the requirements listed above.

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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.

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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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