Who We Are
We are a leading Alternative Legal Service Provider (ALSP) specializing in staffing solutions for Legal & Compliance across the DACH region.

With our “Legal for Legal” approach, we understand your requirements and deliver tailored solutions. Our experience enables us to integrate highly qualified legal and compliance experts into your team.
We combine legal expertise with technological efficiency and a fully automated backend. This is how we ensure a smooth, fast and efficient matching process that takes the pressure off your department.
Our mission is to strengthen your Legal and Compliance department with flexible, personalized and tailored support – precise, efficient and always at the highest level.
Meet the Team
Reto Picenoni
Reto Picenoni is a Swiss lawyer with many years of experience at the intersection of law, compliance, and business development. At Alpinum Solutions, he supports the expansion of the legal service model for the next generation. His focus lies on strategic growth and building efficient structures that can keep pace with rapid developments – sustainable, scalable, and future-oriented.
Previously, Reto was the founder of a leading Alternative Legal Service Provider in the DACH region, which he successfully led through to exit. Other stages of his career include responsibility for Solution Structuring at Credit Suisse Trust for international UHNW clients, as well as senior positions at KPMG and well-known business law firms.
Maren Siegels
Maren leitet das Talent Management Team für den deutschen Markt. Als deutsche Volljuristin bringt sie ihre Expertise ein, um Kunden mit erstklassigen Legal- & Compliance-Spezialisten zu vernetzen und für jedes Projekt die ideale Besetzung zu gewährleisten.
Mit umfassender Erfahrung in Talent Management und Business Development war Maren zuvor Director bei einem führenden Schweizer & deutschen Alternative Legal Service Provider, wo sie massgeblich zur Entwicklung strategischer Workforce-Lösungen beitrug.
Dank ihrer rechtlichen Expertise und Branchenkenntnis meistert sie komplexe Staffing-Herausforderungen und bietet massgeschneiderte, hochwertige Lösungen für ihre Kunden.
Salima Berka
Salima is leading the Talent Management team in Switzerland, specializing in Legal & Compliance staffing. With a strong compliance background, she ensures that the right experts are matched to complex regulatory and legal challenges.
Before joining Alpinum Solutions, Salima gained extensive experience at a Big4 firm and a Swiss bank, where she led major compliance projects in the financial sector. Her deep understanding of regulatory requirements and client expectations makes her an invaluable asset in managing high-stakes projects.
Leonard Herbst
Leonard plays a key role in Business Development, client acquisition, and legal project execution. As a Swiss-qualified lawyer, he combines legal expertise with a pragmatic, results-driven approach to deliver tailored solutions for Legal & Compliance teams.
His career spans Talent Management, Business Development, and legal consulting, including his role as a Manager at a leading Swiss & German Alternative Legal Service Provider. Leonard’s background at a Big4 firm further strengthens his ability to bridge the gap between law and business, ensuring strategic and efficient legal support.
Passionate about creating real value for clients, Leonard focuses on delivering impactful solutions that align with both legal and business objectives.
Sebastian Rümmelein
Sebastian is focusing on Business Development, client acquisition, and strategic growth. As a Swiss-qualified lawyer, he combines legal expertise with a passion for LegalTech, efficient workflows, and automation to drive innovation in the legal industry.
With extensive experience in Talent Management and Business Development, Sebastian previously worked as a Manager at a leading Swiss & German Alternative Legal Service Provider, where he played a key role in developing strategic workforce solutions. His background in a US-based tech company and a LegalTech start-up has shaped his fast, efficient, and solution-driven approach.
Committed to transforming the future of legal work, Sebastian actively contributes to modernizing legal operations and optimizing processes.
Christian Steinmetz
As a Swiss-qualified lawyer, Christian brings a unique blend of legal expertise, Talent Management, and Business Development to the company, delivering strategic workforce solutions for Legal & Compliance teams across industries.
Before founding Alpinum Solutions, he was a Director at a leading Swiss & German Alternative Legal Service Provider, where he played a key role in shaping innovative staffing models for legal departments and law firms. His deep understanding of the evolving legal market enables him to design flexible and scalable workforce solutions that meet modern business needs.
He is responsible for driving growth and expansion, building strong client relationships, and ensuring that the company continuously adapts to the changing demands of the legal industry.
David Kalberer
David Kalberer is a Swiss attorney with deep legal knowledge, management experience, and a proven strategic advisor. As a former international General Counsel, bank managing director, and board member of financial service providers and fintech companies, he brings sharp legal thinking and a clear strategic view to the challenges facing modern legal functions to the table.
At Alpinum Solutions, David supports the development of next-generation legal services in the DACH region. His focus lies on strategic growth, international expansion, and building a solid foundation of processes for selection, deployment, and quality control, to support long-term scalability and resilience.
David’s decision to join the board reflects a shared belief in the future of legal work: more agile, more collaborative, and more deeply embedded in business strategy. His insights help shape Alpinum’s path toward becoming the leading alternative legal service provider in the DACH region - where legal meets innovation and execution.
Estella Fehr
Estella is part of the Talent Management team at Alpinum Solutions in Switzerland, where she focuses on Legal & Compliance recruitment. With a background in Legal and Criminology, as well as Business Operations, she’s passionate about connecting the right experts to meet today’s complex regulatory and legal demands.
Her experience spans a variety of sectors, giving her a well-rounded perspective on what makes a great match. She started her career at a Swiss law firm, building a solid foundation in legal systems and client service. From there, she moved into roles at a smart energy company and a tech startup driving AI adoption, gaining hands-on insight into fast-moving, innovation-led environments. She also worked as a Risk Analyst at a Swiss bank, sharpening her ability to navigate risk and compliance challenges in highly regulated industries.
Estella brings all of this together in her role today – combining industry knowledge, analytical thinking, and people skills to find talent that fits both the role and the bigger picture.
Locations
8008 Zürich,
Switzerland
60306 Frankfurt
am Main Germany
Our Growth
Opening of our Swiss office

30+ consultants in the field

Opening of our German office

Large-scale project in the financial services sector

Opening of our Liechtenstein office

100 successfully placed positions

Innovation through Automation

Over 80 Specialists Deployed
