Tribal is a Total Experience agency. Thinking beyond the established customer experience, we work with brands to consider the total experience – online, offline, and internal engagement and processes and create products, services, and comms that people love. 

Exploring the intersection between brands, technology, and real life, we develop ideas that connect with culture and uncover compelling ways that technology can add value to real people’s lives while delivering returns to our clients. 

The Senior Developer is the development go-to person for any team. Your expertise will be sought in requirement assessments, technical implementation planning and development best practices. You have a solution mindset, who can estimates tasks and strives to complete projects on time. In this position, the Senior Developer will collaborate with the Tech Leads, Architects and Directors to design, develop, and deliver applications with correctly applied patterns and system architecture. The Developer will be responsible to ensure the successful involvement of Quality Assurance and DevOps team members in order to deliver a high quality, maintainable code base into the client’s production environments.

This is a 'hands-on' position that requires collaboration in design, and code leadership in development, as well as the ability to mentor the team in Java/ J2EE technologies, support in tool use, and development process improvement.


You Will:

  • Be responsible for various aspects of designing, developing, and maintaining the server-side of web applications and APIs utilising Java / Spring Boot.
  • Collaborate with cross-functional teams, including Developers, Tech Leads, Technical Architects and Project Managers to design scalable and efficient backend architectures.
  • Evaluate and select appropriate technologies, frameworks, and tools for backend development based on the project requirements.
  • Review code written by other developers and provide constructive feedback to ensure code quality and adherence to best practices. Mentor and guide junior developers on coding standards and best practices.
  • Identify and address performance bottlenecks in the backend code, databases, and infrastructure to improve application speed and efficiency.
  • Implement security measures to protect data and ensure compliance with industry standards and best practices such as GDPR.
  • Develop and execute unit tests, integration tests, and automated test scripts to ensure the reliability and stability of backend services. Participate in the deployment and monitoring of applications with the DevOps team.
  • Design and optimise databases, write efficient complex queries, and ensure data integrity and consistency (SQL).
  • Create and maintain APIs (Application Programming Interfaces) for frontend clients, mobile apps, and external services.
  • Create and maintain technical documentation for the applications, APIs, and infrastructure.
  • Investigate and resolve issues and bugs reported by users or identified through testing and monitoring.

You Have:

  • Technical Expertise as a Senior Backend Developer.
  • Experience with Java 8/11,17+, Java Streams, Java Collections, Spring Boot, Hibernate, Groovy, SQL, Artifactory.
  • Experience with Git, Jenkins and command line tools for helper tools development, use package managers (maven, pip), debugging and unit testing.
  • Experience with version control such as Git and GitHub to manage codebase changes and collaborate effectively with other team members across global markets.
  • Experience with the Atlassian suite of tools - Jira, Bitbucket, Confluence, etc.
  • Knowledge of common development best practices (e.g., TDD, agile).
  • Experience with modern CI/CD workflows.
  • Multi-project commercial experience with relevant tools such as >Java11 (OpenJDK), Docker, Kubernetes, Maven, Jenkins, NVM, RESTful APIs, ActiveMQ or similar.
  • The ability to communicate effectively and proactively with team members, stakeholders, and clients to understand requirements and provide updates on project progress.

You May Have:

  • Experience with AWS Lambda, EC2, ECS, EKS, ECR, SQS, REST, EKS, ActiveMQ, Docker, Kubernetes, NodeJS, Maven, Jenkins, OSGi, PostgreSQL, MySQL.
  • Experience working in an agency environment.

The Talent Team at Critical Mass is focused on ensuring we provide the best training, onboarding, and employee experience possible! Our new hires & employees are the future of our organization, and we want to set you up for long-term success. In an effort to do so, we expect our team to work from an office a minimum of 3 days a week. The ask stems from our want to:


Strengthen opportunity for continuous learning
Improve collaboration and team relationships.
Increase employee engagement


This hybrid model balances the need for individual flexibility while maintaining the relentless customer focus we provide at CM. We understand that not everyone may feel comfortable with this expectation, so we ask that you please let us know immediately if there are any concerns so we can help navigate accordingly.

CM Liquid Talent is still an option for roles approved to be 100% remote.

Critical Mass is an equal opportunity employer that is committed to diversity and inclusion in the workplace. We do not tolerate discrimination on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status. If you are an individual with disabilities who would like to request an accommodation, please reach out to accommodations@criticalmass.com.

We are committed to fostering diversity, equity, and inclusion within our pool of candidates, with a target of achieving at least 50% representation from underrepresented communities.

The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com and us.greenhouse-mail.io. We will not use apps such as Facebook Messenger, WhatsApp, or Google Hangouts for communicating with you. We will never ask you to send us money, technology, or anything else to work for our company. If you believe you are the victim of a scam, please review your local government consumer protections guidance and reach out to them directly.

If U.S. based: https://www.consumer.ftc.gov/articles/job-scams#avoid
If Canada based: https://www.canada.ca/en/services/finance/consumer-affairs.html
If U.K. based: https://www.gov.uk/consumer-protection-rights
If Costa Rica based: https://www.consumo.go.cr/educacion_consumidor/consejos_practicos.aspx 

Apply for this Job

* Required
resume chosen  
Dropbox Google Drive
(File types: pdf, doc, docx, txt, rtf)
Cancel
cover_letter chosen  
Dropbox Google Drive
(File types: pdf, doc, docx, txt, rtf)
Cancel
DE&I Questionnaire

Voluntary Self-Identification

At Critical Mass, we are dedicated and determined to build a workforce that reflects the diversity of the communities in which we live and work. It is crucial that every team member can thrive and reach their full potential.

With that said, we’d like to know a little more about you. We ask all applicants to fill out the below voluntary self-identification questions in order to evaluate and improve our recruitment and diversity efforts. Answering is completely voluntary and will not affect the outcome of your application.

The data collected may be reviewed by the Critical Mass Talent Acquisition Team, Human Resources, our Diversity, Equality and Inclusion team, and our executives, but they will neither be reviewed by nor disclosed to anyone else. All the information that you share with us pursuant to this survey will be stored on our secure network servers located within Canada and the United States.  We will only retain this information so long as it is necessary for the purpose that we have described here or as may be required by applicable laws. Thereafter, we will either anonymize the information or delete it entirely.  If you elect to complete this survey, and at any point in the future you wish to retract or amend your responses, or otherwise have any questions about your data, you may contact our Talent Acquisition team at accommodations@criticalmass.com.

As set forth in Critical Mass’s Equal Employment Opportunity policy, we do not discriminate on the basis of any protected group status under any applicable law.

Aboriginal Peoples Definition:

Aboriginal Peoples means persons who are defined as: Indians (more commonly referred to as First Nations), Inuit, or Métis.

Members of Visible Minorities Definition:

Members of Visible Minorities means persons, other than Aboriginal people, who are non-Caucasian in race or non-white in color.
Examples:
Black (e.g. African, Caribbean, Other)
Arab (e.g. Middle Eastern, North African, etc.) 
Asian and Southeast Asian (e.g. Chinese, Japanese, Korean, Vietnamese, Cambodian, Laotian, Thais, etc.) 
West Asian (e.g. Armenian, Iranian, Persian, Egyptian, Turkish, etc.)
Other (e.g. Latin American, Pacific Islander, etc.) 

Persons with Disabilities Definition:

Persons with Disabilities means persons who have a physical or mental impairment or medical condition that substantially limits a major life activity, or if you have a history or record of such an impairment or medical condition.

How do you identify (gender identity)? (Select one)













Do you identify as LGBTQIA+? (Select one)



Based on the definition above, are you an Aboriginal Person? (Select one)



Based on the definition above, are you a member of a visible minority? (Select one)



Based on the definition above, do you consider yourself as a person with a disability? (Select one)



Are you a Canadian Armed Forces Veteran or Reservist? (Select one)



Are you the spouse of a CAF Veteran or Reservist? (Select one)



Our system has flagged this application as potentially being associated with bot traffic. Please turn off any VPNs, clear your browser cache and cookies, or try submitting your application in a different browser. If this issue persists, please reach out to our support team via our help center.
Please complete the reCAPTCHA above.