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Back End Developer

Criticalmass

San Jose, Costa Rica (San Jose) permanent

Posted: April 6, 2026

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Quick Summary

Develop backend services as part of a contributor role, leveraging expertise in specific platforms and contributing to Adobe Experience Manager projects.

Job Description

This role is in the organization to provide expertise in specific platforms that are commonly leveragedby clients. Output of this role is to develop code as a part of the implementation process.

Career Development is typically provided by the Technology Lead, Platform but can be modified to suit an account and/or office location. Nature of this role of role is that of a ‘contributor’.

You Will:

• Be a source of expertise on platform development projects [e.g., Adobe Experience Manager projects]

• Develop and maintain backend services [e.g., sling servlets, sling models, OSGi components andservices, workflows, etc. for AEM.]

• Develop Unit test cases and perform unit testing

• Manage and develop the integrations between various systems and the platform

• Troubleshoot issues that arise on the platform [e.g., AEM]

• Manage and maintain the content deployment workflows in the platform

• Support quality assurance team in testing activities

You Have:

• Ability to build systems that are easy to use, maintainable and scalable

• Ability to effectively contribute to enterprise-grade development projects

• Good understanding of the need to test and document your code with an excellent attention to detail

• Ability to deliver maintainable and scalable code on time

• Ability and desire to thrive in a fast-paced, client-service environment

• Ability to learn and adapt to new technologies quickly

• Excellent verbal and written communicator, ability to speak tech to non-tech people

• Should be able to efficiently update on task status, blockers, dependencies on time

• Moderate experience in platforms and content management systems [Adobe Experience Manager]

• Java development

• RESTful web services

• Java Frameworks such as object mappers, Sling, JCR, Guice and Spring

• Git/Bitbucket

• JIRA, Confluence, SharePoint Site is an asset

• Docker, Vagrant, Chef or Puppet is an asset

• Configuring web servers such as Apache or NGINX is an asset

• Configuration management is an asset [e.g., OSGi configurations]

• Using and configuring build automation tools [Maven, Jenkins, TeamCity, Bamboo]

• Web development tools and frameworks [JSP, JavaScript, HTML 5 and CSS]

• HTTP protocol, UNIX shell scripting and networking

• Using Code Editors like Visual Studio Code, IntelliJ IDEA or similar

What we offer:

• Maternity and parental leave extra days

• Competitive benefits packages

• Vacation, compassionate leave, sick days, and flex days

• Access to online services for families and new parents

• Diversity and Inclusion Board with 12 affinity groups

• Internal learning and development programs

• Enterprise-wide employee discounts

• And more…

At Critical Mass, we value our employees and offer competitive compensation and benefits packages. If you’re looking for a challenging and rewarding opportunity to make a significant impact on the lives of our employees, we encourage you to apply for this exciting position today!

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 work 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.

Critical Mass is an equal opportunity employer.

Critical Mass uses artificial intelligence in our recruitment process to enhance job postings, filter keywords during the review of prospective candidates, and, in some cases, transcribe interviews with our recruiters. Human review remains central to the process, and all hiring decisions are ultimately made by our team.

The Critical Mass Talent Acquisition team will only communicate from email addresses that use the URLs criticalmass.com, omc.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

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