Senior Java Developer / Technical Lead

Toronto, ON
On-site
Posted Oct 17, 2026
1 position

$80,000–$95,652 / year

Opens an external site

Employment type: Full-time
Experience level: Lead · 10+ years
Minimum education: Bachelor’s degree
Posting language: English
Working hours: 40 hours per week

Job summary

Design and lead the development of secure, scalable Java and Spring Boot services, APIs, event-driven integrations, and batch-processing solutions for banking and payment applications. Guide engineering teams through technical design, testing, releases, production support, cloud and container migrations, and improvements to application security, resilience, and performance.

Job details

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 by a 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 organizations unlock the value of technology and build a more sustainable, more inclusive world.Role Summary: We are seeking a Senior Java Developer / Technical Lead to design and deliver secure, scalable, and high-volume banking and payment applications. The role will lead the development of Java and Spring Boot microservices, REST APIs, event-driven services, batch-processing capabilities, and containerized workloads across cloud and enterprise platforms. The selected candidate will provide technical leadership across solution design, application development, code quality, testing, releases, production support, and engineering team coordination. Key Responsibilities Design and develop Java and Spring Boot microservices for banking, payments, alerts, account servicing, and customer-facing platforms. Build secure RESTful APIs and event-driven integrations using Kafka, RabbitMQ, IBM MQ, or JMS. Develop high-volume, low-latency, and resilient distributed services. Design batch and sub-batch processing for large datasets, including failure handling and recoverability. Implement data archival, restoration, synchronization, and migration capabilities. Design and optimize MongoDB and relational database collections, schemas, indexes, and queries. Lead technical design, low-level design, development, testing, release, and production support activities. Provide technical direction, code reviews, development standards, and mentoring to engineering teams. Migrate applications to OpenShift and Kubernetes-based container platforms. Develop and maintain CI/CD pipelines using Jenkins, Harness, GitHub, Maven, Gradle, and artifact repositories. Implement OAuth 2.0, TLS, encryption, and API security controls. Develop automated tests using JUnit, Mockito, Cucumber, Selenium, JMeter, Gatling, WireMock, or comparable tools. Build dashboards and operational alerts using Splunk, Kibana, AppDynamics, Instana, or Datadog. Troubleshoot production issues by analyzing application logs, performance metrics, event flows, and database behavior. Collaborate with product owners, architects, QA, database, security, and DevOps teams. Drive application resiliency, performance improvement, cloud adoption, and engineering automation. Skills & Education: Required Skills Advanced Java and J2EE development experience. Strong experience with Spring Boot, Spring MVC, Spring Data, Spring Batch, and REST APIs. Experience with microservices and event-driven architecture. Hands-on experience with Kafka and at least one enterprise messaging technology. Strong experience with MongoDB and relational databases such as Oracle or PostgreSQL. Experience deploying applications to OpenShift, Kubernetes, AWS, or comparable cloud platforms. Strong understanding of API security, OAuth 2.0, TLS, and encryption. Experience with Jenkins, Maven, Gradle, GitHub, SonarQube, and CI/CD pipelines. Experience with automated unit, integration, behavioral, and performance testing. Production support experience using enterprise monitoring and logging tools. Proven ability to lead technical delivery and coordinate engineering activities. Preferred Skills Banking, payments, cards, digital wallets, alerts, or account servicing experience. Experience with Cassandra, MariaDB, or other NoSQL platforms. Experience with Apigee or another API management platform. Familiarity with AWS, Pivotal Cloud Foundry, or Google Cloud Platform (GCP). Knowledge of Autosys and enterprise batch scheduling. AWS certification or another relevant cloud certification. Experience using AI-assisted software development tools. Education Bachelor's degree in Computer Science, Engineering, Information Technology, or a related field. The base compensation range for this role in the posted location is: 80,000 to 95,652 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.

What you’ll do

Requirements

Requires advanced Java/J2EE skills and strong experience with Spring, microservices, messaging, MongoDB and relational databases, cloud or container platforms, API security, CI/CD, automated testing, and production support. Candidates should have demonstrated technical leadership and a bachelor's degree in computer science, engineering, information technology, or a related field; banking or payments experience and cloud certification are preferred.