Back Office Manager – Commercial Operations, Digitalization

carmasec GmbH & Co. KG

. Independently organize and manage back-office operations .

Posted 11/11/2026full-timeCologne • GermanyJuniorMid-Level💰 €35,000 - €50,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates strong business acumen and analytical skills to manage back-office operations effectively, including project billing, invoicing, and reporting. Proficient in Microsoft 365 and AI tools to optimize processes and enhance administrative efficiency.

Highest-signal resume keywords

Commercial AdministrationProject ControllingMicrosoft 365 ProficiencyAnalytical SkillsGerman Language Proficiency

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Project BillingInvoicingAccounts Receivable ManagementCommercial AnalysesControllingReportingProcess OptimizationDigitalization ImplementationPower BIDATEV

Soft Skills

Strong Business AcumenSolution-Oriented ApproachEntrepreneurial MindsetInitiativeHands-On Mentality

Tools & Technologies

Microsoft ExcelMicrosoft SharePointMicrosoft TeamsMicrosoft OutlookAI ToolsChatGPTClaudeCopilotHubSpotJira

Certifications & Qualifications

Degree in Business AdministrationCompleted Commercial Training

Industry Keywords

Back-Office OperationsAdministrative ProcessesManagement ReportingConsultingProfessional Services

About the role

Key responsibilities & impact

Independently organize and manage back-office operations
Ensure smooth administrative processes and reliable scheduling and contract administration
Handle commercial administration, including project billing, invoicing, and accounts receivable management
Work closely with the tax advisory firm
Prepare regular management reports
Compile revenue, costs, receivables, project status updates, and budget-to-actual variances for management
Analyze and optimize existing processes
Identify digitalization opportunities and independently implement efficient, highly automated solutions wherever possible
Use AI tools and Microsoft 365 to simplify recurring tasks and reduce manual workloads
Coordinate collaboration among management, Sales, HR, consultants, and external service providers
Support administrative HR activities and the organization of internal events
Drive the sustainable development of internal processes

Requirements

What you’ll need

Several years of experience in a commercial or comparable back-office role
Completed commercial training or a degree in business administration
Strong business acumen and a pronounced affinity for numbers
Experience with commercial analyses, controlling, and reporting
Excellent Microsoft 365 skills, particularly Excel, SharePoint, Teams, and Outlook
Excellent analytical skills
Regular use of AI tools such as ChatGPT, Claude, or Copilot
Structured, independent, and solution-oriented approach to work
Entrepreneurial mindset, initiative, and a hands-on mentality
Excellent written and spoken German
Experience in project controlling, ideally in a consulting or professional services company
Experience with Power BI or comparable reporting and automation tools is a plus
Knowledge of DATEV, HubSpot, Jira, or Confluence is a plus

Benefits

Comp & perks

Permanent employment contract
30 days of annual leave
Freedom to experiment and help shape structures
Open and constructive error culture
Flexible working hours
Time off in lieu for overtime
Deutschlandticket for public transportation
Urban Sports Club membership
Childcare support
JobRad bicycle leasing
Regular professional development opportunities
Recognized certifications
Choice of individual hardware
Remote work or work from our offices in Cologne or Essen
Monthly Open Space sessions
Regular events, such as team workations, summer parties, and Christmas parties
Workation opportunities
Sabbatical
Special leave for significant personal occasions