Role Overview
Criticalmass is hiring a Senior Accountant. This is a full-time role in San Jose, Costa Rica. posted last week. Full responsibilities, required qualifications, and the apply link are listed in the description below.
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Job description
We seek a highly skilled and experienced Senior Accountant to join our dynamic finance team in San José, Costa Rica. This role will be instrumental in ensuring the accuracy and integrity of our financial reporting, managing complex accounting processes, and providing crucial support to the financial management. The ideal candidate will possess a strong understanding of accounting standards, tax regulations, and financial compliance, along with advanced analytical and problem-solving skills.
You will:
- Prepare and analyze financial reports, ensuring compliance with IFRS, US GAAP, or NIIF standards
- Manage month-end, quarter-end, and year-end closing processes, including account reconciliations and journal entries
- Oversee general accounting functions, providing support to financial management. Ensure the accuracy and efficiency of accounting processes, preparing monthly, quarterly, and annual working papers
- Ensure standards and policies are adhered to, and internal controls are in place to support accounting processes and Sarbanes Oxley requirements
- Maintain a thorough understanding of Costa Rican tax regulations, auditing requirements, and fiscal laws. Ensure compliance with Free Trade Zone regulations
- Manage and analyze cash flow, providing insights and recommendations to optimize it
- Support internal and external audits, ensuring compliance with accounting standards and regulatory requirements
- Utilize and maintain accounting software, ensuring data integrity and efficient reporting
- Identify and implement process improvements to enhance efficiency and accuracy in accounting operations
You have:
- 3 to 5 years of experience in accounting, auditing, treasury, cash flow management, or finance
- Proven experience in financial reporting, account reconciliations, and closing processes
- Strong knowledge of accounting standards (IFRS, US GAAP, NIIF), tax regulations, and financial compliance
- Proficiency in accounting software
- Advanced cash flow management expertise
- Knowledge of taxation, auditing, fiscal regulations, and Free Trade Zone laws
- Strong attention to detail, organizational, and analytical skills
- Leadership and teamwork abilities
- Effective communication and time management
- Financial analysis and strategic decision-making
- Acts with integrity and responsibility in fund and asset management
- Familiarity with foreign currency transactions is a benefit
- B2 English Level
Nice to have:
- Leadership skills
What We offer:
- Global maternity and parental leave
- Work-life balance
- Competitive benefits packages
- Vacation, compassionate leave, wellness days, and flex days
- Access to online services for families and new parents
- Diversity and Inclusion Board with 13 affinity groups
- Internal learning and development programs
- Asociación Solidarista - You can join voluntarily
“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
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
About Criticalmass
Criticalmass
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Frequently Asked Questions
How do I apply for the Senior Accountant position at Criticalmass?
Use the Apply button above to submit your application directly to Criticalmass. Most applications take less than 5 minutes if your resume and contact details are ready, and you'll be routed to the employer's official application system to finish.
Where is the Senior Accountant position at Criticalmass located?
This position is based in San Jose, Costa Rica. Criticalmass has not indicated remote or hybrid options for this role, so candidates should plan for on-site work.
What does a Senior Accountant at Criticalmass earn?
Criticalmass has not disclosed a salary range in this posting. Many employers share specifics later in the interview process; you can also ask during a recruiter screen if compensation transparency is important to you.
When was the Senior Accountant role at Criticalmass posted?
This role was posted on June 26, 2026 (13 days ago). It's still listed as actively hiring; we re-confirm openings against the source system multiple times per day and remove closed roles.
How much experience does the Senior Accountant role at Criticalmass require?
This is a senior-level position. Most senior roles call for 5+ years of directly relevant experience. Criticalmass lists their specific requirements in the description below, so review the must-have qualifications closely before applying.
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