Yannik Horst

Münster, Germany; currently in Lyon. yannik-horst [at] gmx [dot] de. linkedin.com/in/yannik-horst-24106a1b8

Yannik Horst

Former Controlling Manager, d.velop AGM.Sc. student, University of Münster

I build the plans, business cases and reporting that leadership steers by.

Two years of SaaS controlling in which I cut unbilled MRR by €245k, saved ~€355k in cloud costs and automated €3.1m in subscription offers, building the tools myself.

Strategic Finance or Data Analytics internshipAvailable Jan–Mar 2027, up to 6 monthsOpen to relocation
LinkedIn Email me Download CV
Portrait of Yannik Horst

At a glance

Most recent role
Controlling Managerd.velop AG, SaaS and document-management software, ~1,100 employeesFeb 2025 – Aug 2026
Studying
M.Sc. Business AdministrationUniversity of MünsterSep 2025 – Dec 2027 (expected). Exchange at emlyon business school, Sep – Dec 2026
Looking for
Strategic Finance or Data Analytics internshipAvailable Jan–Mar 2027, up to 6 monthsOpen to relocation
Languages
German NativeEnglish C1French A2

The 60-second version

Controlling professional with SaaS experience and M.Sc. Business Administration student (Strategic Management and Entrepreneurship), heading into Strategic Finance. Long-term goal: leadership in corporate finance and data-driven finance.

Top results

  • Unbilled MRR−€245k Unbilled MRR fell from ~€250k to ~€5k.
  • AWS cloud costs−€355k Cloud costs reduced by ~€355k (~5%).
  • Contracts prepared for subscription migration€3.1m Offers covering €3.1m in contract value, ready to migrate to subscription.

Key results

A statement of impact: before, after and the delta. Select a line for the full case study.

Line itemBeforeAfterDeltaBefore → AfterOpen case study
Unbilled MRR~€250k~€5k−€245k~€250k → ~€5k
AWS cloud costsOn-demand pricingReserved Instances and Savings Plans−€355kapprox., about 5% of cloud costsOn-demand pricing → Reserved Instances and Savings Plans
Contracts prepared for subscription migrationManual offersAutomated generation€3.1mcontract valueManual offers → Automated generation
Sales incentive and KPI systemQlikViewPower Platform self-service120reps and directorsQlikView → Power Platform self-service
CTO area plan and forecastOwned end to end~€50mcost base, 280 FTEOwned end to end
Board KPI and divisional reportingNo consistent steering viewWeekly and monthly, automatedBuilt from scratchNo consistent steering view → Weekly and monthly, automated

Every figure links to its case study.

Experience

Most recent first. Open a role for details and its case studies.

4 of 4 roles
Competences
Functions

  1. Co-founder, Finance and Marketing

    Horst Eventmemories GbRSep 2026 – present. Gescher, Germany

    Event photo-booth rental business, co-founded with two partners.

  2. Controlling Manager

    d.velop AG, SaaS and document-management software, ~1,100 employeesFeb 2025 – Aug 2026. Part-time alongside the M.Sc. from Oct 2025. Gescher, Germany

    Planning, forecasting and reporting for a SaaS company moving from licences to subscription.

    • Owned the three-year plan and forecast for the CTO area (~€50m cost base, 280 FTE).
    • Built the AWS Reserved Instance and Savings Plan business case, cutting cloud costs by ~€355k (~5%).
    • Forecast the P&L impact of the shift to subscription and validated it monthly against actuals.
    • Built weekly Board KPI and monthly divisional reporting from scratch on automated feeds.
    • Automated 960 subscription offers (€3.1m contract value) with Python, SQL and HubSpot.
    • Moved 120 sales reps and directors from QlikView to a self-service incentive and KPI system on Power Platform.

    Case studies

  3. Dual student: Industrial Management Assistant (IHK) and B.A. Business Administration

    d.velop AG, SaaS and document-management software, ~1,100 employeesAug 2021 – Jan 2025. In Controlling from Oct 2024. Gescher, Germany

    Rotated through six departments over 3.5 years, combining study and work in a six-day week.

    • Rotation through Purchasing, Sales, Marketing, Accounting, Controlling and Back office.
    • In Sales Operations, created offers and orders for complex software deals.
    • Built a dashboard linking delivery and billing data, cutting unbilled MRR from ~€250k to ~€5k.

    Case studies

  4. Voluntary social year (FSJ), full-time

    Werkstätten Haus HallAug 2020 – Jul 2021. Gescher, Germany

    Daily support and personal care for adults with disabilities.

    • Supported and cared for a group of 20 adults with disabilities in the workshop.

Skills

What I work with day to day.

Finance

  • Financial modeling
  • Planning and forecasting
  • P&L forecasting
  • Variance analysis
  • Business cases
  • Board and ExCo reporting

Excel (advanced)

  • Pivot tables
  • XLOOKUP / INDEX-MATCH
  • Power Query
  • Power Pivot
  • Macros / VBA

Data and systems

  • SQL (Snowflake)
  • Python
  • Power BI
  • Tableau
  • Qlik
  • Power Platform
  • Salesforce
  • HubSpot
  • Dynamics 365
  • Agentic coding (Claude Code)
  • AI-assisted data analysis
  • Process automation

Languages

  • German Native
  • English C1 (TOEFL iBT 113/120)
  • French A2

Rows are skills and tools, columns are case studies. Generated from the case data.

Select a skill to filter the track record.
Skill or toolUnbilled MRRAWS cloud costsContracts prepared for subscription migrationSales incentive and KPI systemCTO area plan and forecastBoard KPI and divisional reporting
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UsedLedUsed
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Used

Education

InstitutionDegreePeriodGradeTopics and courses
University of MünsterM.Sc. Business Administration, Strategic Management and EntrepreneurshipSep 2025 – Dec 2027 (expected)Entrepreneurship and digital innovationFinancial management and organizational designTechnology and innovation strategyBusiness model innovation
emlyon business school, LyonExchange semester, Programme Grande ÉcoleSep – Dec 2026Business AnalyticsArtificial IntelligenceVenture CapitalEconomic StrategyLeading Strategic Change
FH Münster University of Applied SciencesB.A. Business Administration, dual programme with d.velop AG

Thesis (1.3): Cost-efficiency of customer acquisition in SaaS business models. Specialisations: Controlling, Finance.

Sep 2021 – Feb 20251.6Financial Management 1.0Accounting 1.3Statistics 1.3
IHK Nord WestfalenIndustrial Management Assistant (IHK)2023Top 7% of the cohort

German grades run from 1.0 to 4.0. 1.0 is the best grade, 4.0 is a pass.

Honours

  • 2025MAP talent programmeSelected for the University of Münster's talent development programme (Management Association for Perspectives).
  • 2024Federal merit scholarshipSBB Weiterbildungsstipendium for top vocational graduates, awarded via the IHK.
  • 2023IHK AwardFinal apprenticeship exam in the top 7% of the cohort.
  • MemberMünsteraner Börsenparkett e. V.Member of the student investment club.

Beyond work

Contact

Email is fastest. LinkedIn and the one-page CV work too.

Email meLinkedInDownload CV

Closing the unbilled-revenue gap

d.velop AG, Dual student: Industrial Management Assistant (IHK) and B.A. Business Administration, Aug 2021 – Jan 2025

Project deliverywhat was deliveredBilling datawhat was invoicedDashboardmatches both,flags the gapUnbilled MRRbefore ~€250kafter ~€5k−€245k
How it works

Context: d.velop AG, SaaS and document-management software, ~1,100 employees

Challenge: Project delivery status and billing data lived in separate places, so delivered services were not always billed.

Action: Built a dashboard linking project delivery to billing data, making unbilled monthly recurring revenue visible.

Result: Unbilled MRR fell from ~€250k to ~€5k.

Skills and tools: Dashboard design, Data modelling, Power BI, Excel

Cutting cloud costs with a commitment business case

d.velop AG, Controlling Manager, Feb 2025 – Aug 2026

on-demandRI / SPabout 5% lower−€355kCost analysisCommitmentsReserved Instances,Savings PlansBusiness case
How it works

Context: CTO area with a cost base of about €50m and 280 FTE.

Challenge: Cloud costs in the CTO area were rising.

Action: Built the business case for AWS Reserved Instance and Savings Plan commitments.

Result: Cloud costs reduced by ~€355k (~5%).

Skills and tools: Business case, Cost analysis, Forecasting, Board reporting, Excel

Automating 960 subscription offers

d.velop AG, Controlling Manager, Feb 2025 – Aug 2026

960 customerson legacyproductsMappinglegacy to newportfolioGenerationPython, SQL,HubSpot€3.1mcontract valuefor subscription
How it works

Context: d.velop AG, SaaS and document-management software, ~1,100 employees

Challenge: 960 small customers on legacy products needed offers in the new subscription portfolio.

Action: Built automated offer generation with Python, SQL and HubSpot by mapping legacy products to the new portfolio.

Result: Offers covering €3.1m in contract value, ready to migrate to subscription.

Skills and tools: Python, SQL, Product mapping, HubSpot, Snowflake, Board reporting, Excel

A self-service incentive and KPI system for 120 sales reps

d.velop AG, Controlling Manager, Feb 2025 – Aug 2026

FromQlikViewPower Platform self-serviceKPIsdefined withsales directorsData modeldeal eligibilitymade traceableDashboardsmanagementand each repGo-livetraining, Q&A,hypercare
How it works

Context: d.velop AG, SaaS and document-management software, ~1,100 employees

Challenge: Deal eligibility for incentives was not transparent.

Action: Defined the KPIs with sales directors, built the data model, launched self-service dashboards for management and individual reps, and led go-live through training, Q&A sessions and hypercare.

Result: 120 sales reps and directors moved to one system; deal eligibility became transparent; QlikView replaced.

Skills and tools: KPI design, Dashboard design, Data modelling, Power Platform, Change and go-live, SQL, Python, Snowflake, Board reporting, Excel

Owning the three-year plan for the CTO area

d.velop AG, Controlling Manager, Feb 2025 – Aug 2026

Year 1Year 2Year 3HeadcountCloudDevelopment softwareThree-year plan and forecast, one owner~€50m, 280 FTE
How it works

Context: CTO area with a cost base of about €50m and 280 FTE.

Action: Owned the three-year plan and forecast for the CTO area, spanning headcount, cloud and development software costs.

Skills and tools: Multi-year planning, Forecasting, Cost analysis, SQL, Python, Board reporting, Excel

Forecasting the shift to subscription

d.velop AG, Controlling Manager, Feb 2025 – Aug 2026

SalesMarketingITAutomated feedsSQL, SnowflakeBoard KPIsweeklyDivisional reportsmonthlyEvery month: P&L forecast checked against actuals
How it works

Context: d.velop AG, SaaS and document-management software, ~1,100 employees

Challenge: The company was moving from licences to recurring subscription revenue; the P&L impact had to be forecast and tracked, and there was no consistent steering view.

Action: Forecast the P&L impact of the subscription shift and validated it monthly against actuals; built weekly Board KPI and monthly divisional reporting from scratch on automated feeds, aligning Sales, Marketing and IT.

Result: Sales, Marketing and IT work from one source of truth for the Board.

Skills and tools: P&L forecasting, Board reporting, Dashboard design, Forecasting, KPI design, Cost analysis, SQL, Python, Snowflake, Power BI, Excel