Kelio Tech Stack

Time & attendance and building access control software for European enterprises

Software Development Cholet 501–1,000 employees Partnership

Kelio develops on-premises and cloud time-tracking and physical security platforms for mid-market and enterprise customers across Europe. The stack is modern (Rails, Vue/Nuxt, PostgreSQL, Docker) but deployment-heavy: active projects center on rolling out solutions to large accounts and integrating security tooling into pipelines, while the hiring mix skews heavily toward security (19 roles) and engineering (18), with support absorbing 12 — a pattern typical of custom-implementation and compliance-driven businesses where post-sale engineering and security assurance are revenue drivers.

Tech Stack 16 technologies

Core StackRuby on Rails Angular Vue PostgreSQL Docker GitHub Actions Heroku Java Nuxt OWASP SAST DAST ISO 27001 4G LinkedIn Altium

What Kelio Is Building

◆Challenges

Growth of activities
Balancing budget and technical complexity
Improving security metrics
Managing application security risks
Security compliance
Vulnerability remediation
Custom development for client needs
Maintaining proprietary frameworks
Maintaining profitability
Customer satisfaction

▲Active Projects

Deployment of kelio solutions for large accounts
Integrating security tools into development pipelines
Orm development
Mco of ats application
Penetration test result analysis
Custom development for clients
Credit research
Gta solution deployment in hauts de france
Deploy gta solutions to clients in hauts de france
Custom development projects for large accounts

Hiring Activity

Steady60 roles · 25 in 30d

Department

Security

Engineering

Support

Sales

Marketing

Ops

Seniority

Mid

Junior

Intern

Lead

Senior

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About Kelio

Kelio is a French software vendor serving businesses across all sectors with two core product lines: workforce time and attendance management (including leave, scheduling, and payroll integration) and building access control systems. The company operates primarily across France and Spain, serving organizations from small businesses to large enterprises. The product suite integrates with HR systems and includes recruitment modules. Kelio maintains proprietary frameworks and handles significant custom development to meet client-specific requirements, which drives ongoing support and deployment workload.

HeadquartersCholet

Company Size501–1,000 employees

Hiring MarketsFrance, Spain

Frequently Asked Questions

What tech stack does Kelio use?

Kelio builds on Ruby on Rails and Java backends, Vue/Nuxt frontends, PostgreSQL databases, and Docker containerization. GitHub Actions and Heroku support deployment. Security tooling includes OWASP, SAST, DAST, and ISO 27001 compliance frameworks.

What is Kelio working on?

Primary focus areas include deploying solutions for large accounts, integrating security tools into development pipelines, building custom client implementations, and analyzing penetration test results. ORM development and application security improvements are also active.