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Critical Software Tech Stack

Mission-critical software for aerospace, medical, energy, and finance sectors

Information Technology & Services Coimbra 1,001–5,000 employees Founded 1998 Privately Held

Critical Software is a 1,001–5,000-person engineering firm headquartered in Portugal, focused on safety-critical and regulated systems across aerospace, medical devices, energy, and finance. The tech stack—C, C++, Java, SQL databases, and specialized tools like IBM DOORS and PLC—reflects deep domain expertise in systems where failure is not an option. Active hiring skews toward principal-level engineers (16 roles) and mid-career technologists (20), paired with aggressive business development efforts (14 sales roles, plus dedicated medical devices and energy sector initiatives), signaling a shift from pure services toward productized solutions and market expansion.

Tech Stack 54 technologies

Core StackC++ React Angular TypeScript Tailwind CSS Java Python Linux SQL Server SAP Oracle MariaDB PostgreSQL Power BI Kubernetes C IBM DOORS LinkedIn HTML5 CSS PrimeNG Quarkus REST API Robot Framework SQL Server Integration Services SQL Server Reporting Services SQL Server Analysis Services Progress PowerShell PLC+23 more

What Critical Software Is Building

Challenges

  • Complex high-assurance projects
  • Regulatory changes in energy sector
  • Regulated safety-critical domains
  • Sales and delivery alignment
  • Adopting ai across organization
  • New market opportunities in samd
  • Improving detection rule accuracy
  • Complex aerospace project execution
  • Aviation compliance
  • Automation of processes and daily routines

Active Projects

  • Strategy to increase business pipeline in european market
  • Ai transformation
  • Solution architecture development
  • Strategic account planning and client growth initiatives
  • Business development strategy for medical devices cluster
  • New business opportunities for bespoke software solutions in energy sector
  • Playbook creation and continuous improvement
  • Technology scouting and research
  • Investment opportunities with critical ventures
  • Customer engagement and technical validation

Hiring Activity

Decelerating65 roles · 15 in 30d

Department

Engineering
34
Sales
14
Security
5
Data
3
Product
2
Support
2
Executive
1
Ops
1

Seniority

Mid
20
Principal
16
C-Level
6
Manager
6
Senior
6
Director
4
Junior
4

Notable leadership hires: Chief Technology Officer

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About Critical Software

Critical Software designs and delivers software for industries where reliability and compliance are non-negotiable: aerospace, railway, medical devices, energy, and finance. Founded in 1998 and now a Benefit Corporation, the company operates across multiple geographies (Portugal, UK, Germany) and holds CMMI Level 5 certification for both waterfall and agile processes—a rare credential that underscores engineering rigor. The company serves as a trusted technical partner for mission-critical systems, from avionics to medical-device firmware to energy-grid software. Current strategic initiatives center on AI transformation, European market penetration, and expansion into medical-device and energy-sector solutions through dedicated business development teams.

HeadquartersCoimbra
Company Size1,001–5,000 employees
Founded1998
Hiring MarketsUnited Kingdom, Portugal, Germany

Frequently Asked Questions

What tech stack does Critical Software use?

C, C++, Java, Python, TypeScript, React, Angular, Linux, SQL Server, Oracle, PostgreSQL, IBM DOORS, PLC, Kubernetes, and specialized testing tools like Robot Framework.

What industries does Critical Software serve?

Aerospace, railway, medical devices, energy, finance, and healthcare. The company specializes in safety-critical and regulated systems where high assurance and compliance are mandatory.

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