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NERTUS Tech Stack

Railway maintenance and signaling systems for Spanish rail operators

Engineering Services Madrid, Community of Madrid 501–1,000 employees Founded 2002 Privately Held

NERTUS maintains rolling stock and designs railway signaling infrastructure across Spain, operating as a joint venture between Siemens and Renfe. The tech stack reflects deep embedded-systems specialization: PLC, OPC UA, PROFINET, Modbus TCP/IP, and WinCC supervisory control paired with Java backend and PostgreSQL persistence. Current hiring skews mid-to-senior engineering (6 roles, 5 posted in the last 30 days), signaling active scaling of design and implementation capacity for control systems and remote train operation rather than maintenance-only work.

Tech Stack 13 technologies

Core StackJava Linux PostgreSQL SQL Server Jakarta EE PLC Windows Microsoft 365 Siemens WinCC Modbus TCP/IP OPC UA PROFINET CCTV

What NERTUS Is Building

◆Challenges

Integrating diverse critical subsystems

▲Active Projects

Dspm integration for railway signaling
Rail traffic control system
Railway signaling system implementation
Remote train control system design
Simulation environment setup

Hiring Activity

Accelerating7 roles · 5 in 30d

Department

Engineering

6

Product

1

Seniority

Mid

3

Senior

3

Junior

1

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About NERTUS

NERTUS was established in 2002 as a collaboration between Siemens and Renfe to provide integrated maintenance services for railway rolling stock and signaling infrastructure across Spain. The organization operates with over 700 employees and executes both national and international rail signaling projects, including remote train control system design, traffic control implementations, and simulation environments. Technical depth spans industrial automation (PLC programming, OPC UA, PROFINET, Modbus) and IT operations (Java, PostgreSQL, SQL Server, Linux, Windows). The company prioritizes continuous improvement and quality delivery in a highly regulated critical-infrastructure environment.

HeadquartersMadrid, Community of Madrid

Company Size501–1,000 employees

Founded2002

Hiring MarketsSpain

Frequently Asked Questions

What tech stack does NERTUS use?

Java, Jakarta EE, PostgreSQL, SQL Server, PLC, Linux, Windows, Siemens WinCC, OPC UA, PROFINET, Modbus TCP/IP, and CCTV systems for railway signaling and train control applications.

What is NERTUS working on?

Railway signaling system implementations, remote train control system design, rail traffic control systems, DSPM integration for signaling, and simulation environment setup for national and international rail projects.