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Your shortcut to HR Tech

Cooperation

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Cooperations

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Introduction

hrstack.io × Sandra Feldmann

I’m a business creator in the HR field and reach over 28,000 HR professionals via LinkedIn. There, I speak openly about recruiting, HR tech, tools, AI, and the real challenges of everyday HR work.My WHY: HR needs guidance, not tool chaos and marketing buzzwords.Through daily interaction with my community, I identify early on where HR teams need support and which solutions truly help. That’s precisely how hrstack.io came about. The platform translates my HR expertise and reach into structured tool curation, explanatory content, and sound decision-making tools.My brand ambassadorships make this work scalable by combining trust and reach with a platform where HR tools are categorized, explained, and made sustainably usable.

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HR software growth and business performance analytics chart

Discover
hrstack.io

Curated selection of HR tools

I curate HR tools based on practicality and genuine added value, not on marketing promises. HR tech products are positioned credibly and transparently with a relevant HR target group – based on trust rather than advertising. Clear categorization creates orientation instead of short-term attention.

HR Buyer Journey Toolkit

Most platforms end with the tool search – hrstack.io goes further. Instead of just listing tools, you’ll find specifications, checklists, and practical resources for selection and decision-making. hrstack.io helps HR teams not only to scout tools, but also to select them in a structured way and implement them successfully.

Operational HR Enablement

Selecting the right tool is just the beginning – implementation determines success. On hrstack.io you will find practical tips and recommendations for implementation, including HR-experienced freelancers and implementation partners who can configure tools, map processes and migrate data. hrstack.io helps HR teams not only to introduce new tools, but also to successfully implement them.

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Discover Our
Services

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I support HR tech brands not only in terms of visibility, but also through formats along the entire HR buyer journey.

Ambassadorship

My brand ambassadorships are not advertising, but rather contextualization. I only work with tools that I can professionally endorse. I openly explain for whom they are useful – and for whom they are not. This is how trust is built, not advertising pressure.

Content Creation

I develop practical, honest HR content – from LinkedIn series and newsletters to white papers and case studies. Always with the goal: guidance instead of buzzwords.

HR Events

Keynotes, panels, webinars and curated HR formats that connect community, content and hrstack.io – online and offline.

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Ambassadorship

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Reach & Visibility

• Sponsored posts on LinkedIn & Instagram
• Social Media Takeover
• “Partner of the Month” highlight on the hrstack.io homepage

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Education & Context

• Newsletter article (hrstack.io or LinkedIn)
• Blog article
• hrstack.io real-world use cases
• HR Tool Roast (LinkedIn Live series)

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Engagement

• Creative formats (e.g. online advent calendar)
• Interactive live formats
• Community-based actions

Content Creation

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Education & Knowledge

• Webinars & LinkedIn Lives
• Academy content (scripts,
     masterclasses, training material)
• Whitepaper

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Proof & Credibility

• Keynotes & panel talks
• Interviews
• Ghostwriting for executives & HR leaders

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Thought Leadership

• Testimonials
• Practical examples & lessons learned
• Experience-based classification

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HR Events

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My HR events are not an end in themselves, but part of the overall ecosystem.
Keynotes, panels, fireside chats, webinars and curated formats connect community, content and hrstack.io.

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Meetups

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Keynotes

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HR Dinner

HR Tool Roast

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My HR events are not an end in themselves, but part of the overall ecosystem.
Keynotes, panels, fireside chats, webinars and curated formats connect community, content and hrstack.io.

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Advantage: HR Tool Roast enables an initial introduction and collaborative work without pressure.
This gives me a really deep understanding of the tool, the tech-savvy community gets honest insights, and providers get a low-threshold entry point into relevant conversations with potential leads.

Every second Tuesday at 11:30 a.m. on LinkedIn, Facebook and YouTube.

LinkedIn

My reach primarily comes from LinkedIn and has grown organically. I reach HR professionals who are actively engaged with tools, processes, and decisions. This community is not an audience, but a dialogue partner – and the most important source for relevant topics, pain points and trends.

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2 Mio.

impressions p.a.

#16

HR Influencer in DE in
HR Business

I am among the top 15 HR creators in Germany and am regularly listed in relevant HR industry rankings.
(Source: favikon)

LinkedIn presence
28,000+ followers
Top 4% of all LinkedIn profiles in Germany
Top 2% in the HR industry (Germany)
HR Industry Ranking: #16
LinkedIn Overall Ranking: #713

Ranking

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Media Data

Engagement & Impact

  • Engagement rate (30 days): 0.21%

  • Ø engagement per post (30 days): 59 interactions

  • Score: 83.4 / 100

  • Focus on a qualitative HR target group, not on reach hacks

  • LinkedIn Newsletter: 3,996 subscribers

Daily activity (posting frequency: daily at 9am)

Ø 13,900 views per post (30 days)

Average 26 posts per month

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Media Data

My followers – who follows me

  • 18% work in corporations with 10,000+ employees, often in IT, software, industry or HR services

  • 13% come from companies with 1,001–5,000 employees, often from tech, consulting and recruiting-related industries

  • 12% are employed in medium-sized businesses (51–200 employees), e.g. in industry, HR services and software

  • 21% work in small companies (11–50 employees), often in tech, start-ups and service-oriented HR roles

  • 10% are active in start-ups (1–10 employees), strongly influenced by SaaS, software development and innovation topics

  • The remaining 26% are distributed across other company sizes and industries

Over 60% of my followers have decision-making, budgeting, or direct influence.

Media Data

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My content

My LinkedIn posts focus on HR tools, HR tech, AI and innovation, as well as talent attraction and recruiting processes. This is complemented by practical insights, strategic HR questions, and topics such as diversity and inclusion, female empowerment, and mental health.

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HR Tech, Tools & KI

I categorize HR tools, HR tech and AI in a practical way and show, using use cases, practical tips, tool recommendations, smart hacks and concrete workflows, what really creates added value.

Talent Attraction

I share modern talent attraction approaches and recruiting processes directly from everyday HR practice – including daily wins, fuck-ups, and lessons learned. I provide a platform for innovation.

DEB

I don’t talk about diversity & inclusion, female empowerment, and mental health as buzzwords, but as real issues from everyday HR practice. My writing is very honest, relatable, and authentic.

Built on Experience, Not Hype

15+ years of HR practice & buyer journey experience

15+ years of operational HR experience, including as Head of Talent. Responsibility for tool scouting, business cases, budget approvals, implementation & rollout. Experience with ATS, recruiting tech, HRIS, talent & analytics tools. Making decisions as a budget holder, not as an observer.

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Real decision-maker network & market proximity

A network consists not only of online reach, but also of years of IRL contacts. Close relationships with HR leaders, founders, buying committees & VCs who are actively involved in tool selection and purchasing. Regular exchange on and behind the scenes at major HR conferences.

Thought leadership with a platform and reach

Speaker at SoSu, SourceCon, Zukunft Personal, Embrace Festival, H.U.G by Personio, ZPDX, TalentPro. Media presence includes Forbes HR Council, Personalwirtschaft, RADICAL HR, MATCHR. Podcast guest on shows including Saatkorn, Crafty Sourcer, Talent & Growth, The Modern Recruiter, Bind2Tech, and Talent Intelligence Podcast. Development of own creative formats that stand out from the HR crowd (e.g. tool roasts, HR online advent calendars, etc.).

Client Voices

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Personio

I have been the official brand face of Personio for 1.5 years. I post regularly (once a month) and develop my own creative formats, such as an HR advent calendar, which go beyond classic product communication. Furthermore, I support Personio in various formats: webinars, academy courses, masterclasses, community events, keynotes and panels – always with expert analysis and HR practical relevance.

Eva Maria Lorenz

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Founder of People Nova

Sandra combines something rare: deep recruiting and HR tech expertise with a razor-sharp business acumen. She’s not just on the cutting edge, she translates trends into clear decisions, scalable processes, and real results. And that’s precisely why working with her is not only effective, but also a genuine pleasure.

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Mutual Action Plan

Get 2 know

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Demo

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Proposal

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Kick-off

We get to know each other and clarify whether the product, target group and attitude are a good fit. I want to understand what problem you are solving, who your tool is intended for, and what specific added value it offers in everyday HR practice.

The demo is the most important step in our collaboration. I take the time to truly understand your product: use cases, target groups, functional logic, limitations, and differentiation. Only when I can understand and contextualize the tool myself can I speak about it credibly and stand behind it.

Based on the demo, I will develop a customized cooperation concept. Formats, content and channels are chosen to fit your product, your stage of development and my community – without advertising logic.

After joint agreement, we will begin implementation. Content, platform, events and ambassadorship are intertwined – with clear goals, measurable formats and transparent communication.

Pricing for our most
popular services

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Post

  • Ø 13,900 views per post

  • Publication on my LinkedIn profile

  • Target audience: HR professionals & decision makers

  • Price: €500 per post

  • Suitable for targeted visibility, classification and reach

Webinar

  • Ø 50–200 live participants

  • 1,500–2,500 views in replay

  • Invitation to approximately 1,500 contacts

  • Including concept development, moderation, execution & marketing

  • Price: from €3,500

  • Suitable for education, thought leadership, and lead quality

Whitepaper

  • Content concept & structure

  • Professional assessment from HR practice

  • Distribution via relevant channels

  • Use as a long-term asset (content, leads, sales enablement)

  • Price: from 2,500 EUR (depending on scope & objectives)

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