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Company · Solar pv installers

Gatter3

As of 30 October 2026, Gatter3 has 26 open roles (0 new in 30 days), its skilled trades and field service team is hiring most, and its postings name Docker, Flutter and Linux as the tools the team works in.

As of 30 October 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.

Holzwickede, Germany201-500 employees10M-50M revenue, est.B2B, B2C, B2Ggatter3.com ↗LinkedIn ↗
Headquarters
Holzwickede, Nordrhein-Westfalen, Germany
Employees
201-500 employees (linkedin)
Sells to
commercial properties, large open-area sites, companies
Certifications on site
ISO 27001, ISO 9001, tuv
Site languages
DE
Career system
Ownsite_html
26open roles · 0 new in 30 days
14tools named in postings
hiring locations
0change signals read in postings
02What they do, whom they sell to, who else does it

Gatter3 in one screen

Read from gatter3.com: what the company does, the customers it names, the buyers we can actually see, and the companies that sell the same thing.

What Gatter3 does

Gatter3 is a service provider that bundles infrastructure and energy services under one roof, offering photovoltaic systems, charging infrastructure, overhead line construction, heat pumps and marketplace gas conversion. It serves commercial properties, municipalities and retail customers, providing solar carports, hybrid heat pumps, transformer maintenance and metering technology.

solar carport systemshybrid heat pumpstransformer inspection and maintenancenetwork connection planning
Whom it sells to

Named on the site: commercial properties, large open-area sites, companies, municipalities, retail, retail businesses.

Who else sells this

Nearest companies by what they do, sell and whom they serve, 51+ employees. 588 scored.

Roof EnergyRomania · 51-200 employeesGARANT Wärmesysteme IngenieurgesellschaftGermany · 51-200 employeesRevolt EnergyPoland · 201-500 employeesBangalore One Solar SystemUnited States · 51-200 employeesPfister EnergyUnited States · 51-200 employeesTenten SolarNetherlands · 51-200 employees
03Tech stack, with the evidence

What Gatter3 says it runs

Tools named in the company's own postings as the team's systems, with the sentence that says so. What the website and DNS show is listed separately.

DockerIT operations & business systems · high confidence · 2 postings
• Automatisierung von Abläufen im Linux-Umfeld (Shell-/Python-Skripte), Deployment und Betrieb (Docker)
Java Softwareentwickler (m/w/d) · first seen 2026-10-26
FlutterSoftware engineering · high confidence · 2 postings
• Mitarbeit an der Neuentwicklung der Nachfolgeplattform (Python/FastAPI-Backend, React/TypeScript-Backoffice, Flutter-App)
Java Softwareentwickler (m/w/d) · first seen 2026-10-26
LinuxIT operations & business systems · high confidence · 2 postings
• Automatisierung von Abläufen im Linux-Umfeld (Shell-/Python-Skripte), Deployment und Betrieb (Docker)
Java Softwareentwickler (m/w/d) · first seen 2026-10-26
PostgreSQLIT operations & business systems · high confidence · 2 postings
• Wartung und Weiterentwicklung unserer zentralen Fachanwendung LH One (Java 8, Vaadin 8, GlassFish 4.1, PostgreSQL) inkl.
Java Softwareentwickler (m/w/d) · first seen 2026-10-26
PythonIT operations & business systems · high confidence · 2 postings
• Mitarbeit an der Neuentwicklung der Nachfolgeplattform (Python/FastAPI-Backend, React/TypeScript-Backoffice, Flutter-App)
Java Softwareentwickler (m/w/d) · first seen 2026-10-26
ReactIT operations & business systems · high confidence · 2 postings
• Mitarbeit an der Neuentwicklung der Nachfolgeplattform (Python/FastAPI-Backend, React/TypeScript-Backoffice, Flutter-App)
Java Softwareentwickler (m/w/d) · first seen 2026-10-26
SQLIT operations & business systems · high confidence · 2 postings
• Unterstützung bei Datenauswertungen aus unserem ERP-System Odoo (SQL)
Werkstudent (m/w/d) IT · first seen 2026-10-26
Unix ShellIT operations & business systems · high confidence · 2 postings
• Automatisierung von Abläufen im Linux-Umfeld (Shell-/Python-Skripte), Deployment und Betrieb (Docker)
Java Softwareentwickler (m/w/d) · first seen 2026-10-26
AndroidSoftware engineering · high confidence · 1 posting
• Pflege der zugehörigen Android-App (Java) und ihrer SOAP-Schnittstellen
Java Softwareentwickler (m/w/d) · first seen 2026-10-26
GlassFishSoftware engineering · high confidence · 1 posting
• Wartung und Weiterentwicklung unserer zentralen Fachanwendung LH One (Java 8, Vaadin 8, GlassFish 4.1, PostgreSQL) inkl.
Java Softwareentwickler (m/w/d) · first seen 2026-10-26
JavaSoftware engineering · high confidence · 1 posting
Java Softwareentwickler (m/w/d)
Java Softwareentwickler (m/w/d) · first seen 2026-10-26
Microsoft Entra IDIT operations & business systems · high confidence · 1 posting
• Einrichtung und Betreuung von Endgeräten (Windows, Microsoft 365, Entra ID / Azure AD) sowie On-/Offboarding
Werkstudent (m/w/d) IT · first seen 2026-10-26
Microsoft Windowshigh confidence · 1 posting
• Einrichtung und Betreuung von Endgeräten (Windows, Microsoft 365, Entra ID / Azure AD) sowie On-/Offboarding
Werkstudent (m/w/d) IT · first seen 2026-10-26
OdooIT operations & business systems · high confidence · 1 posting
• Unterstützung bei Datenauswertungen aus unserem ERP-System Odoo (SQL)
Werkstudent (m/w/d) IT · first seen 2026-10-26
On the website or in DNS

Vendors whose code loads on gatter3.com or whose records sit in its DNS. Page plumbing (libraries, fonts, consent banners) is left out.

agenturserverseen on gatter3.comexclaimerseen on gatter3.com
Google Workspaceseen on gatter3.com
Microsoft 365seen on gatter3.com
04Hiring

26 open roles, 0 opened in 90 days

Read hourly from the company's career system. Open roles and new roles in the last 30 days, by team. Companies hiring skilled trades and field service in Germany →

05Signals

What is changing, read from the postings

Intents are events the employer states about itself, each with the sentence and the posting it came from.

No change signals read in the current postings.

Decision makers at Gatter3, with verified e-mails, and every change the moment it is posted.

Sales, marketing and IT leaders by function. Add Gatter3 to a monitor and get a webhook when a role opens, a tool appears or a signal is read.

Start free, no card. The first 20 are above; e-mails are verified at the mail server when you open them.

06Lookalikes

Companies like Gatter3

Nearest by what they do, what they sell and whom they sell to, 51+ employees. 6 of 588 scored.

Roof EnergySolar pv installers · Romania51-200 employees
GARANT Wärmesysteme IngenieurgesellschaftHeat pump installation · Germany51-200 employees
Revolt EnergySolar pv installers · Poland201-500 employees
Bangalore One Solar SystemSolar pv installers · United States51-200 employees
Pfister EnergySolar pv installers · United States51-200 employees
Tenten SolarSolar pv installers · Netherlands51-200 employees
07Profile

From the company's own website

Legal nameTechnik GmbH
IndustryProperty & construction · Solar pv installers
Offeringssolar carport systems · hybrid heat pumps · transformer inspection and maintenance · network connection planning
Target customerscommercial properties · large open-area sites · companies · municipalities · retail · retail businesses
Geographic scopeunknown · also Austria
Reviews found
Public contact points1 role addresses · 3 phone numbers
Pages readprivacy, home, imprint, contact, careers, about, services
Datescrawled 2026-08-07 · profiled 2026-08-16 · hiring built 2026-10-27
Cite this

Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.

Gatter3 (Holzwickede, Germany, 201-500 employees) has 26 open roles, 0 new in 30 days, and names 14 tools in its postings. (Breaknorm, 30 October 2026, https://breaknorm.co/company/gatter3.com)
How we know

Read from the source, not self-reported

Every number on this page can be traced to a page we crawled or a posting we read. Full methodology →

  • ProfileBuilt from gatter3.com: summary, offerings, customers, certifications and contact points are extracted from its pages, with a confidence score per field.
  • HiringRead hourly from the company's Ownsite_html career site; reposts collapse into one record.
  • Tech stackTools the employer's own text names as the team's systems, with the quote; website scripts counted separately.
  • HeadcountLinkedIn where known, otherwise estimated from the site.
FAQ

Gatter3: questions

Does Gatter3 use Docker?

Yes, by the company's own words: 2 postings name it, first seen 2026-10-26, in the it operations & business systems team.

Is Gatter3 hiring?

26 open roles as of 30 October 2026, 0 opened in the last 30 days and 0 closed. The largest team hiring is skilled trades and field service.

Where does this profile come from?

From gatter3.com itself: we crawled it on 2026-08-07, built the profile on 2026-08-16, and read its career site (Ownsite_html) hourly since. Headcount is from LinkedIn.

Who should I write to at Gatter3?

The people are behind the login: decision makers by function, verified at the mail server when you open them. 1 public role addresses from the site are there too.

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