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

Experience in Java (6+ years) in an enterprise environment, covering the whole development life cycle * Knowledge and technical skills in Python 2 years * Must have good communication skills, strong ...

Oracle Certified Java Developer certification will be an asset. * Technical Knowledge of event driven architecture (Kafka, Kafka connectors, Kafka brokers) * 3-5 years of working experience in the ...

As a Sr. Consultant, Back End Developer, you will build, implement and maintain , flexible and ... This role requires Java (Java EE/Java SE) development ability. Also, having good knowledge of ...

The Sr. Consultant, Back End Developer provides technical leadership to develop precise steps and ... Java, Spring Boot, RDBMS/SQL, Micro-servicesarchitecture, J2EE, SOAP Services, REST APIs, gRPC ...

The Sr. Consultant, Back End Developer provides technical leadership to develop precise steps and ... Java, Spring Boot, RDBMS/SQL, Micro-servicesarchitecture, J2EE, SOAP Services, REST APIs, gRPC ...

Senior Backend Developer

Toronto, ON · Remote

CA$120K - CA$135K/yr

Own it. Sangoma is excited to announce an opening for a Senior Backend Developer to join our ... Node.js and Java. * Strong problem-solving skills with the ability to quickly learn new ...

Senior Backend Developer

Toronto, ON · Remote

CA$120K - CA$135K/yr

Own it. Sangoma is excited to announce an opening for a Senior Backend Developer to join our ... Node.js and Java. * Strong problem-solving skills with the ability to quickly learn new ...

The Sr. Consultant, Back End Developer provides technical leadership to develop precise steps and ... Microservices architecture, Java/J2EE, SOAP, REST and gRPC Services, Quarkus, Spring Boot, JSON ...

The Sr. Consultant, Back End Developer provides technical leadership to develop precise steps and ... Microservices architecture, Java/J2EE, SOAP, REST and gRPC Services, Quarkus, Spring Boot, JSON ...

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Senior Java Developer C2C information

What are the key skills and qualifications needed to thrive as a Senior Java Developer (C2C), and why are they important?

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 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 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:
Sr. Java/React Full Stack Developer (Onsite Hybrid)

Sr. Java/React Full Stack Developer (Onsite Hybrid)

NTT DATA Services

Mississauga, ON • On-site, Remote

Other

Posted 12 days ago


NTT Data rating

7.3

Company rating: 7.3 out of 10

Based on 89 frontline employees who took The Breakroom Quiz

105th of 203 rated it services


Job description

NTT DATA strives to hire exceptional, innovative and passionate individuals who want to grow with us. If you want to be part of an inclusive, adaptable, and forward-thinking organization, apply now.

We are currently seeking a Sr. Java/React Full Stack Developer (Onsite Hybrid) to join our team in Mississauga, Ontario (CA-ON), Canada (CA).

Job Responsibilities:

  • Design, develop, and operate end-to-end full-stack applications including front-end user interfaces, back-end services, and supporting infrastructure.
  • Own the complete software development lifecycle including system design, development, testing, deployment, monitoring, and production support.
  • Build and operate applications using modern GitOps-driven SDLC practices to ensure reliable and repeatable deployments.
  • Develop scalable, highly performant, and resilient distributed systems with strong focus on reliability and operational efficiency.
  • Participate in production operations including monitoring, incident resolution, root cause analysis, and system optimization following "you build it, you run it" principles.
  • Collaborate with product managers, business stakeholders, and cross-functional teams to translate functional requirements into robust technical solutions.
  • Develop responsive and component-based user interfaces using modern front-end technologies and frameworks.
  • Design and implement secure and scalable APIs and backend services using REST/JSON standards.
    Ensure backward compatibility, version control, and maintainability in API design and service development.
  • Solid in DevOps with hands on knowledge in CI/CD pipelines, Jenkins and related toolset
  • Work with Kubernetes-based environments to deploy, scale, and manage containerized applications.
  • Develop automated workflows and scripts to streamline repeatable development, deployment, and operational tasks.
  • Conduct testing including UI testing, component testing, and integration testing to ensure application stability and performance.

Basic Qualifications:

  • 8+ years of experience working in Kubernetes-based containerized environments including deployment, scaling, and operational management.
  • 8+ years of experience in software development, with strong focus on full-stack application development.
  • 8+ years of experience with Java-based backend development.
  • 8+ years of experience developing modern front-end applications using React or similar frameworks.
  • 8+ years of experience building scalable APIs and backend services using REST/JSON architectures.
  • 8+ years of experience implementing CI/CD pipelines, GitOps , DevOps tooling, at least hyperscaler, and automated deployment processes with infra as code (IaC) understanding
  • 8+ years of experience building and supporting production-grade systems with high availability and operational reliability.
  • 8+ years of experience working in automation frameworks for workflow orchestration and operational efficiency.

Preferred Sklls:

  • Machine learning and deep learning/ LLM knowledge

Degree

  • Bachelor's degree in Computer Science, Information Technology, Engineering, or equivalent work experience.

#INDFSINS

#L1-NorthAmerica

About NTT DATA

NTT DATA is a $30 billion business and technology services leader, serving 75% of the Fortune Global 100. We are committed to accelerating client success and positively impacting society through responsible innovation. We are one of the world's leading AI and digital infrastructure providers, with unmatched capabilities in enterprise-scale AI, cloud, security, connectivity, data centers and application services. our consulting and Industry solutions help organizations and society move confidently and sustainably into the digital future. As a Global Top Employer, we have experts in more than 50 countries. We also offer clients access to a robust ecosystem of innovation centers as well as established and start-up partners. NTT DATA is a part of NTT Group, which invests over $3 billion each year in R&D.

Whenever possible, we hire locally to NTT DATA offices or client sites. This ensures we can provide timely and effective support tailored to each client's needs. While many positions offer remote or hybrid work options, these arrangements are subject to change based on client requirements. For employees near an NTT DATA office or client site, in-office attendance may be required for meetings or events, depending on business needs. At NTT DATA, we are committed to staying flexible and meeting the evolving needs of both our clients and employees. NTT DATA recruiters will never ask for payment or banking information and will only use @nttdata.com and @talent.nttdataservices.com email addresses. If you are requested to provide payment or disclose banking information, please submit a contact us form, https://us.nttdata.com/en/contact-us.

NTT DATA endeavors to make https://us.nttdata.com accessible to any and all users. If you would like to contact us regarding the accessibility of our website or need assistance completing the application process, please contact us at https://us.nttdata.com/en/contact-us. This contact information is for accommodation requests only and cannot be used to inquire about the status of applications. NTT DATA is an equal opportunity employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or protected veteran status. For our EEO Policy Statement, please click here. If you'd like more information on your EEO rights under the law, please click here. For Pay Transparency information, please click here.


What NTT Data employees say

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Benefits

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About NTT DATA

Sourced by ZipRecruiter

NTT DATA Services is a global business and IT services provider specializing in digital, cloud and automation across a comprehensive portfolio of consulting, applications, infrastructure and business process services. We are part of the NTT family of companies, a partner to 85 % of the Fortune 100.

Industry

It services

Company size

10,000+ Employees

Headquarters location

Plano, TX, US

Year founded

1967