Senior Core Java Engineer

Socket.dev; Montreal (administrative region); On-site; CAD 80,000 - 90,000; Full time

Benefits offered by this job

Paid time off

Medical, dental, and vision coverage

Retirement savings plans

Life and disability insurance

Employee assistance programs

Job summary

Capgemini is seeking a Senior Core Java Engineer to design, develop, and support high-performance, scalable enterprise applications. You will work on backend services, APIs, and microservices, collaborating with product owners, architects, and development teams to deliver robust technical solutions.

Ideal candidates bring 7+ years of Java-focused software development, strong JVM tuning, RESTful APIs, and experience with distributed systems.

Qualifications

• Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field.
• 7+ years of experience in software development with a strong focus on Java.
• Strong expertise in Core Java, object-oriented programming, multithreading, collections, concurrency, and JVM internals.
• Experience designing and developing enterprise-scale applications and distributed systems.
• Strong understanding of software design patterns, data structures, and algorithms.
• Experience building RESTful APIs and service-oriented architectures.
• Strong knowledge of relational databases such as Oracle, SQL Server, PostgreSQL, or MySQL.

Responsibilities

• Design, develop, and maintain robust, scalable Java-based applications.
• Develop backend services, APIs, and microservices to support business-critical apps.
• Participate in system architecture, design reviews, and code reviews for quality deliverables.
• Optimize application performance, scalability, reliability, and security.
• Troubleshoot production issues and implement sustainable solutions.
• Collaborate with product owners, architects, and dev teams to align with business objectives.
• Contribute to Agile processes, including sprint planning, estimation, and retrospectives.
• Advocate for software engineering best practices and coding standards.
• Mentor junior developers and promote knowledge sharing.
• Stay current with emerging technologies and propose improvements.

Skills

Core Java

Multithreading & Concurrency

Collections Framework

JVM Performance Tuning

Object-Oriented Design

Data Structures & Algorithms

Design Patterns

Education

Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field

Tools

Git

Jenkins

Maven/Gradle

Docker

Kubernetes

Linux/Unix

AWS/Azure/GCP

Job description

Choosing Capgemini means choosing a company where you will be empowered to shape your career in the way you’d like, where you’ll be supported and inspired bya collaborative community of colleagues around the world, and where you’ll be able to reimagine what’s possible. Join us and help the world’s leading organizationsunlock the value of technology and build a more sustainable, more inclusive world.

Job Description

We are seeking a Senior Core Java Engineer to design, develop, and support high-performance, scalable enterprise applications. The ideal candidate will have strong expertise in Core Java, distributed systems, backend engineering, and software design principles.

Key Responsibilities

• Design, develop, test, and maintain robust, scalable, and highly available Java-based applications.
• Develop backend services, APIs, and microservices to support business-critical applications.
• Participate in system architecture, technical design, and code reviews to ensure high-quality deliverables.
• Optimize application performance, scalability, reliability, and security.
• Troubleshoot production issues and implement sustainable solutions.
• Collaborate with product owners, business stakeholders, architects, and development teams to deliver technical solutions aligned with business objectives.
• Contribute to Agile development processes, including sprint planning, estimation, and retrospectives.
• Advocate and implement software engineering best practices, coding standards, and development frameworks.
• Mentor and guide junior developers, fostering technical growth and knowledge sharing.
• Stay current with emerging technologies and recommend improvements to existing systems and processes.

Required Qualifications

• Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field.
• 7+ years of experience in software development with a strong focus on Java.
• Strong expertise in Core Java, object-oriented programming, multithreading, collections, concurrency, and JVM internals.
• Experience designing and developing enterprise-scale applications and distributed systems.
• Strong understanding of software design patterns, data structures, and algorithms.
• Experience building RESTful APIs and service-oriented architectures.
• Strong knowledge of relational databases such as Oracle, SQL Server, PostgreSQL, or MySQL.
• Experience with version control tools such as Git.
• Familiarity with Linux/Unix environments and scripting.
• Strong debugging, troubleshooting, and performance tuning skills.
• Excellent communication, analytical, and problem‑solving abilities.

Preferred Qualifications

• Experience with Spring Boot, Spring Framework, and microservices architecture.
• Experience with messaging technologies such as Kafka, RabbitMQ, or JMS.
• Familiarity with containerization technologies such as Docker and Kubernetes.
• Exposure to cloud platforms including AWS, Azure, or Google Cloud Platform (GCP).
• Experience with CI/CD pipelines and DevOps practices.
• Knowledge of NoSQL databases such as MongoDB, Cassandra, or DynamoDB.
• Experience working in highly regulated or large-scale enterprise environments.

Technical Skills

Core Competencies

• Core Java (Java 8/11/17+)
• Multithreading & Concurrency
• Collections Framework
• JVM Performance Tuning
• Object‑Oriented Design
• Data Structures & Algorithms
• Design Patterns

Backend Technologies

• Spring Boot
• REST APIs
• Microservices
• Hibernate/JPA
• Messaging Frameworks

Databases

• Oracle
• SQL Server
• PostgreSQL
• MySQL
• MongoDB (Preferred)

Tools & Platforms

• Git
• Jenkins
• Maven/Gradle
• Docker
• Kubernetes
• Linux/Unix
• AWS/Azure/GCP

Experience

• 7+ years of professional software engineering experience
• Proven experience building, deploying, and supporting large-scale enterprise applications.
• Demonstrated success in delivering high-quality solutions in Agile environments.

The base compensation range for this role in the posted location is: 80,000 - 90,000.

Capgemini provides compensation range information in accordance with applicable national, state, provincial, and local pay transparency laws. The base compensation range listed for this position reflects the minimum and maximum target compensation Capgemini, in good faith, believes it may pay for the role at the time of this posting. This range may be subject to change as permitted by law.

The actual compensation offered to any candidate may fall outside of the posted range and will be determined based on multiple factors legally permitted in the applicable jurisdiction.

These may include, but are not limited to: Geographic location, Education and qualifications, Certifications and licenses, Relevant experience and skills, Seniority and performance, Market and business consideration, Internal pay equity.

It is not typical for candidates to be hired at or near the top of the posted compensation range.

In addition to base salary, this role may be eligible for additional compensation such as variable incentives, bonuses, or commissions, depending on the position and applicable laws.

Capgemini offers a comprehensive, non-negotiable benefits package to all regular, full-time employees.

In the U.S. and Canada, available benefits are determined by local policy and eligibility and may include:

• Paid time off based on employee grade (A-F), defined by policy: Vacation: 12-25 days, depending on grade, Company paid holidays, Personal Days, Sick Leave

• Medical, dental, and vision coverage (or provincial healthcare coordination in Canada)
• Retirement savings plans (e.g., 401(k) in the U.S., RRSP in Canada)
• Life and disability insurance
• Employee assistance programs
• Other benefits as provided by local policy and eligibility

Important Notice

Compensation (including bonuses, commissions, or other forms of incentive pay) is not considered earned, vested, or payable until it becomes due under the terms of applicable plans or agreements and is subject to Capgemini’s discretion, consistent with applicable laws. The Company reserves the right to amend or withdraw compensation programs at any time, within the limits of applicable legislation.

Disclaimers

Capgemini is an Equal Opportunity Employer encouraging inclusion in the workplace. Capgemini also participates in the Partnership Accreditation in Indigenous Relations (PAIR) program which supports meaningful engagement with Indigenous communities across Canada by promoting fairness, accessibility, inclusion and respect. We value the rich cultural heritage and contributions of Indigenous Peoples and actively work to create a welcoming and respectful environment. All qualified applicants will receive consideration for employment without regard to race, national origin, gender identity/expression, age, religion, disability, sexual orientation, genetics, veteran status, marital status or any other characteristic protected by law.

This is a general description of the Duties, Responsibilities and Qualifications required for this position. Physical, mental, sensory or environmental demands may be referenced in an attempt to communicate the manner in which this position traditionally is performed. Whenever necessary to provide individuals with disabilities an equal employment opportunity, Capgemini will consider reasonable accommodations that might involve varying job requirements and/or changing the way this job is performed, provided that such accommodation does not pose an undue hardship. Capgemini is committed to providing reasonable accommodation during our recruitment process. If you need assistance or accommodation, please reach out to your recruiting contact.

Please be aware that Capgemini may capture your image (video or screenshot) during the interview process and that image may be used for verification, including during the hiring and onboarding process.

Click the following link for more information on your rights as an Applicant in the United States. http://www.capgemini.com/resources/equal-employment-opportunity-is-the-law

Capgemini is a global business and technology transformation partner, helping organizations to accelerate their dual transition to a digital and sustainable world, while creating tangible impact for enterprises and society. It is a responsible and diverse group of 340,000 team members in more than 50 countries. With its strong over 55-year heritage, Capgemini is trusted by its clients to unlock the value of technology to address the entire breadth of their business needs. It delivers end-to-end services and solutions leveraging strengths from strategy and design to engineering, all fueled by its market leading capabilities in AI, generative AI, cloud and data, combined with its deep industry expertise and partner ecosystem.