About the Role We are an established SaaS company in Mexico City, recently acquired by an international corporation. You will own our IT and security function end-to-end — managing a complex technical environment, ensuring operational continuity, and leading key infrastructure modernization initiatives. This is a hands‑on role with real ownership and direct impact on how the business operates and protects itself.
Who You Are You are a self‑directed, hands‑on technologist who gets things done in messy, real‑world environments. You take ownership, sweat the details, and hold yourself to results — not effort. You communicate clearly with both technical and non‑technical stakeholders, and you're comfortable working within a structure that has both local and corporate expectations.
Responsibilities Manage and harden legacy Unix and Linux environments; maintain operational stability and security posture
Lead infrastructure migration and technology modernization projects, including cloud environments (AWS, Azure)
Define, document, and implement IT and information security policies across the organization
Administer the Azure tenant and Microsoft 365 suite, including Entra ID, Intune, and Defender
Manage all employee endpoint security: CrowdStrike, Cloudflare, ActZero, and KnowBe4 platform
Own the full IT employee lifecycle: onboarding, offboarding, asset inventory, and access control
Deploy and enforce MFA and access controls across all systems and users
Design, implement, and maintain backup and disaster recovery (DR) practices; conduct regular testing
Manage key vendor relationships (hosting, licensing, security services) and associated IT budgets
Manage and optimize API integrations with external platforms and service providers
Produce and maintain corporate security reporting for local and parent‑company stakeholders
Implement and enforce network security policies: firewall configuration, VPNs, and network access controls
Must‑Haves Strong Linux administration (RHEL, CentOS, or Ubuntu) — required
Hands‑on experience with legacy Unix environments (SCO Unix or similar)




Experience managing cloud environments (AWS and/or Microsoft Azure) — required
Azure administration: Entra ID (AAD), Intune, Defender, and Microsoft 365
Network security: firewalls, VPNs, Cloudflare, secure network architecture
Endpoint security management (MDM/EDR); CrowdStrike or equivalent tooling
Experience with API integrations and API management
Proven experience leading infrastructure migrations or technology modernization projects
Security policy design and implementation
Backup and DR design and implementation
Strong written communication in Spanish; English proficiency is a meaningful advantage
Nice to Have Security certifications: CompTIA Security+, AZ‑500, CISSP, or equivalent
KnowBe4 or similar security awareness platform administration
Experience working within a parent/subsidiary matrix reporting structure
Familiarity with NIST, ISO 27001, or similar frameworks
Business‑level English proficiency
Who This Is NOT For This Is NOT For Pure cloud‑native engineers with no legacy Unix experience, Managers who delegate all hands‑on work — this role requires deep individual technical ownership, Candidates who have not led infrastructure migrations end‑to‑end.
Business Unit Business Unit: Avance
Schedule Scheduled Weekly Hours: 40
Position Number of Openings Available: 1
Worker Type Worker Type: Regular
Career Site Career Site: More About Jonas Software
Company Profile Jonas Software is a leading provider of enterprise management software solutions, serving a wide range of vertical markets including hospitality, healthcare, construction, education, personal care, fitness, leisure, moving and legal services, to name a few. Within these markets,



Jonas is comprised of over 65 distinct brands, each a respected leader in its domain. Jonas’ vision is to be the branded integral leader across these verticals and to be recognized by customers and industry stakeholders as the trusted provider of “Software for Life.” We are committed to technology, product innovation, quality, and exceptional customer service. Jonas Software supports over 60,000 customers in more than 30 countries. We employ over 6,000 skilled professionals, including industry experts and technology specialists. Across our broader network, we support a global workforce of more than 30,000 employees. Headquartered in Canada, Jonas Software has a global footprint with offices around the world. We’re a 100% owned subsidiary of Constellation Software Inc., based in Toronto, publicly listed on the TSX (CSU.TO), and a member of the S&P;/TSX 60 Index.
IS THIS YOU? At Vesta, we have long realised that our greatest asset is our employee base. As such we strive to provide our team with a fantastic working environment and an enriching career, which we know will translate into world‑class service to our valued clients. This allows Vesta Software Group to maintain and extend our lead as the premier software and services provider in each of our markets. If being part of a growing organization that moves at a fast pace and constantly strives to get better each and every day is what you are looking for, then we want to hear from you. Everyone has heard the sports analogy “to be the best, you have to beat the best”; well at Vesta Software Group we have tweaked that slightly to fit vertical market software. We believe to be the best you have to hire and retain the best!!!
Equal Opportunity Vesta Software Group is an Equal Opportunity Employer.
Accommodation If you need accommodation for a disability at any stage of the application process or want more information on our accommodation policies, contact recruitment at [email protected]
Other Info Vesta Software Group is part of a CSI group of companies.

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📌 IT & Security Lead (Nezahualcóyotl)
🏢 Perseus Group
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