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Everfield

Long-term investor and accelerator for software

Linux Systems Administrator

Full-TimeUpdated on 10/21/2026
No salary listed
Senior
Madrid, Spain
HybridOffice attendance is required on Tuesdays, with occasional visits to Madrid data centers.
DevOps & Infrastructure

About the job

Requirements
  • At least 5 years of experience administering Linux systems in production environments.
  • At least 5 years of experience in network administration.
  • Solid experience administering VMware virtualization environments.
  • Experience administering Docker, creating images, managing containers, and working with CI/CD.
  • Experience administering firewalls such as Fortinet, Sophos, or Cyberoam, or similar products.
  • Experience with cloud solutions from Amazon, Google, or Microsoft.
  • Experience designing scalable, highly available architectures.
  • Experience administering MySQL and tuning performance, including parameters, indexes, and execution plans.
  • Programming experience in Shell.
  • A hands-on profile accustomed to resolving technical problems directly.
  • Residence in Madrid or nearby, due to data center visits and the Tuesday office day.
  • Availability occasionally outside normal working hours for planned or critical interventions.
Responsibilities
  • Administer, maintain, and update Linux systems infrastructure, both on-premises and in the cloud, with autonomy from the first day.
  • Define, design, and implement architecture improvements focused on scalability and high availability.
  • Deploy new systems and services on company-owned servers and in the cloud, including AWS, Google Cloud, and Azure.
  • Manage VMware virtualization environments and Docker containers, including image creation and CI/CD pipelines.
  • Administer networks and firewalls, and resolve systems, network, and security incidents.
  • Adjust and optimize the performance of MySQL databases.
  • Automate tasks using Shell scripting.
  • Attend Madrid data centers when needed and participate in planned or critical interventions outside normal working hours.
  • Work closely with the systems team and the CTO.
Desired Qualifications
  • Experience deploying and maintaining Kubernetes clusters, including networking and security.
  • Knowledge of the SIP protocol, Asterisk, or FreeSWITCH.
  • Experience using traffic analysis tools such as Wireshark.
  • Programming experience in PHP, Go, or C++.
  • English for occasional meetings with the group.

About the company

E

Everfield

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Website

Everfield is a long-term investor and accelerator for established software companies. It provides capital, strategic guidance, and hands-on operational support to help firms navigate critical turning points and grow in a changing market. By applying holistic best practices, leveraging a strong network, and making quick decisions, it supports portfolio firms—over 80 vertical software companies across its sister organizations—to scale their ideas. Its goal is to help established software companies grow sustainably and turn strategic opportunities into lasting success for both the company and its broader ecosystem.

Company Size

11-50

Company Stage

N/A

Total Funding

N/A

Headquarters

Cologne, Germany

Founded

2022

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Simplify Jobs

Simplify's Take

What believers are saying

  • Everfield bought Retain on September 7, 2026, deepening Spanish maintenance software exposure.
  • Genero, Playoff, and Ecologic broaden 2026 Nordic, Iberian, and Polish expansion.
  • Its ecosystem now includes 40+ mission-critical software companies, improving cross-sell leverage.

What critics are saying

  • Everfield’s 2026 acquisition spree strains integration across Iberia, Nordics, and DACH.
  • Rhebo and Genero still depend on regulatory approvals, delaying revenue synergies.
  • If founder retention weakens, Everfield’s buy-and-hold thesis collapses into fragmented churn.

What makes Everfield unique

  • Permanent ownership lets Everfield hold vertical software indefinitely, unlike traditional PE.
  • Its decentralized model preserves local brands, teams, and founder-led operating autonomy.
  • It spans 40+ companies across 11 countries, concentrating niche operational software expertise.

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Benefits

  • Flexible Work Hours

Company News

La Vanguardia
Sep 7th, 2026
British firm Everfield acquires Playoff to boost innovation in B2B SaaS platform

British investment group Everfield has acquired Playoff, a Catalan technology platform that manages daily operations for over 1,700 entities. Financial terms were not disclosed. Founded in 2006 by CEO Rubén Celada, the Sabadell-based company will maintain its brand, team, headquarters, and working methods. Everfield will provide resources including product development investment, operational expertise, and advanced AI and Big Data technology integration. Playoff's platform handles registrations, payments, subscriptions, and management for sports clubs, federations, academies, and associations across Spain and Latin American countries including Uruguay, Honduras, Dominican Republic, Mexico, and Colombia. Clients include educational and professional entities such as Movistar Estudiantes, Masterchef Junior, and Nacho Duato Academy. The company reported revenues of €1.6 million in 2025.

Everfield
Aug 14th, 2026
Everfield Acquires Playoff, a Spanish Membership Management Platform

Everfield completes its seventh acquisition in Spain, welcoming Playoff Informática, the membership management platform behind more than 1,700 sports clubs, federations, academies, and associations

Everfield
Aug 5th, 2026
Everfield Acquires Ecologic, a Polish Provider of Fleet Management Software

Everfield adds Ecologic, a Polish provider of integrated fleet management software, to its Field & Workforce Operations vertical. The deal is Everfield’s third investment in Poland and seventh across Central and Eastern Europe.

PR Newswire
Apr 30th, 2026
Landis+Gyr sells Rhebo to Everfield for high single-digit million US dollars

Landis+Gyr has signed a definitive agreement to sell Rhebo GmbH to Everfield Germany, a buy-and-hold investor in European B2B SaaS businesses. The transaction, valued in the high single-digit million US dollars, remains subject to regulatory approvals. Founded in 2014 and based in Leipzig, Germany, Rhebo provides security monitoring and anomaly detection for industrial networks and IIoT environments. The company has been part of Landis+Gyr since 2021. The sale follows Landis+Gyr's strategic realignment to focus on core business priorities. Under Everfield's ownership, Rhebo is expected to continue developing its OT security technology. Everfield operates a decentralised model across more than 40 B2B software companies in Europe, spanning various verticals including industrial systems and healthcare.

TechSavvy Media
Apr 15th, 2026
Aarhus-based software company gets a new owner: "gives us the opportunity to continue development"

Aarhus-based software company gets a new owner: "gives us the opportunity to continue development" This post is also available in: Danish Aarhus-based software company Amero has a new owner after European B2B software investor Everfield has acquired the company. The acquisition gives Amero a long-term owner with a focus on scaling vertical software solutions, while the ambitions for growth continue from Aarhus, according to a press release. "With Everfield, we get a long-term owner who understands our business and our culture - and who allows us to continue the development of Amero. This puts us in a strong position to build the company further - while strengthening our solutions and maintaining the close relationship with our customers," says Jakob Højland, CEO of Amero. Builds on specialized software. Amero provides modular POS and inventory management solutions for specialty retail, recycling and attractions and has been unified since 2023 through a merger between FlexPOS and Amero. The company is headquartered in Aarhus, employs around 50 people and has customers such as the Red Cross, the National Museum and Bahne. The platform is specifically targeted at organizations with operations across multiple locations and integrates payment, inventory management and customer management in a single system. "I'm proud of where Amero is today - with a strong product, strong customers and a culture built on values that live in everyday life. We have a community that is felt in everyday life and where colleagues thrive and want to stay. It makes me both proud and confident to pass on the baton to an owner who will build on what has already been created," says Kasper Smith, former majority owner of Amero. New owner with focus on scaling. With Everfield as new owner, Amero becomes part of a larger European ecosystem of vertical software companies. "Amero is one of the preferred software providers for specialty retail companies in Denmark. Their unified platform covers POS, payments, inventory and customer management in one system. We look forward to supporting the team and giving them the support and resources they need to scale further," says Lorenz Fuglsang, Country Manager for the Nordics at Everfield. The acquisition is Everfield's third in Denmark and part of a broader strategy to build a portfolio of specialized B2B software companies across Europe. "This is our third acquisition in the Nordics in the last twelve months and reflects the strong pipeline of software companies we continue to see across the Nordic countries," says Lorenz Fuglsang.