Tam T.-ex-McKinsey | ex-CoS
Check rate
Experience
Freelance Management Consultant
Freelance
Chief of Staff, Revenue
Everphone
- Act as a direct thought partner to the executive team, turning strategic priorities into concrete plans, metrics, and execution roadmaps
- Lead cross-functional initiatives spanning Sales, Operations, and Product, removing blockers and ensuring fast, aligned execution
- Prepare high-stakes decision contexts for board and investor meetings, synthesizing complex data into crisp narratives and clear trade-offs
- Identify and evaluate new growth and monetization opportunities through market, customer, and competitive analysis
- Design and operationalize KPI and performance management frameworks to increase accountability and execution speed
- Own a company-wide sales transformation initiative, including incentive design, target setting, and rollout, directly supporting revenue scalability
- Reset the U.S. market strategy, leading the operational wind-down of the prior U.S. setup and establishing a new U.S. partnership from the ground up, including drafting the MOU and defining the go-forward approach
- Owned strategic and budget planning for the Revenue department, running the €100M 2025 operating budget and leading the build and approval of the €150M 2026 budget
- Led a company-wide sales transformation, redesigning the commission model and building the KPI framework and an OKR-linked monthly review cadence, lifting cold-outreach volume by ~30% and cold-contact-to-first-meeting conversion by ~15%
Consultant
McKinsey & Company
- Shaped the European market-entry strategy for a B2B battery energy storage manufacturer, including client, market and competitor due diligence and channel strategy; the recommended launch markets (Netherlands, Germany) were adopted by the client shortly after project close
- Advised a mega-project developer in the Middle East on its sustainability strategy, mapping construction-material use across projects to 2050, assessing substitution potential and quantifying current vs. future CO₂ footprints through structured expert interviews
- Authored two flagship reports on the German startup ecosystem, benchmarking funding trajectories, sectoral focus areas and structural strengths and weaknesses against leading international innovation hubs
- Developed the pricing and go-to-market strategy for a German steel manufacturer's new sustainable product line, grounded in market research and portfolio analysis, including identification of priority target customers
- Built business cases and financial models for SME farmers with NGOs and government bodies to improve investment readiness ahead of a pan-African investor conference, including pitch decks and pitch training (pro bono)
- Analyzed the application of artificial intelligence across the global public health sector for McKinsey's Social Sector Practice
Consulting Intern
McKinsey & Company
- Developed the back-to-office strategy for a global vaccine manufacturer, owning the workstream on future office-space demand and mobile-work requirements and presenting recommendations to site services and HR
- Analyzed the healthcare delivery systems of three Southeast Asian countries for a global public-health NGO
Business Development Intern & Working Student
DiscoEat
- Owned the rollout of a core product feature across 100+ partner restaurants, coordinating execution across product, operations, and external stakeholders
- Gathered and synthesized customer feedback to inform product decisions and process improvements
Business Development Intern & Working Student
Layer7 AI (now MaddoxAI)
- Identified and prioritized AI use cases by commercial impact and feasibility, and built business cases and strategic narratives for venture funding and positioning
Business Development Intern & Working Student
Layer7 AI (now MaddoxAI)
- Identified and prioritized AI use cases by commercial impact and feasibility, and built business cases and strategic narratives for venture funding and positioning
MEE Business Development Intern
SAP
- Supported portfolio expansion into new industry verticals by developing solution concepts and early-stage prototypes
- Contributed to strategic prioritization through market and customer analysis
Global Strategy & Marketing Intelligence Intern / Global Controlling Intern
BASF Colors & Effects
- Mapped optimization potential across global supply chains and supported the launch of a global change management program
- Benchmarked competitors on financial KPIs and reviewed strategic projects and investments against the benchmark
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Agriculture, Construction, Energy, Healthcare, Manufacturing, and Information Technology.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Strategy, Finance, Marketing, Sustainability Management, Sales, and Project Management.
Summary
I help leadership teams turn strategic priorities into clear plans, measurable KPIs, and effective execution. As a former Chief of Staff and McKinsey consultant, I have led cross-functional initiatives across Sales, Operations, and Product, prepared decision materials for boards and investors, and supported growth, monetization, and revenue transformation.
My work combines structured analysis with practical implementation. I build business cases and financial models, assess markets and competitors, develop go-to-market, pricing, and operating model concepts, and translate complex information into clear recommendations. I also bring experience in AI use-case evaluation, product rollouts, and the German startup and technology landscape.
Skills
- Advanced Excel & Financial Modeling
- Powerpoint
- Invision
- Photoshop
- Salesforce Sales Cloud
- Adjust
- Sprout
- Coda
- Comeet
- Zapier
Languages
Education
Lancaster University & ESB Reutlingen Double Degree
BBA & BSc in International Management · International Management · Lancaster, United Kingdom · First Class Honours & 1.5 (top 10%)
Statistics
Experience
Global experience
Expertise
Qualifications
Frequently asked questions
Have questions? Find more information here.
Tam is based in Berlin, Germany and prefers 100% remote projects.
Tam speaks the following languages: German (Native), English (Advanced), Vietnamese (Intermediate).
Tam has at least 6 years of experience. During this time, Tam has worked in at least 7 different roles and for 7 different companies. The average length of individual experience is 1 year and 7 months. Note that Tam may not have shared all experience and actually has more experience.
Based on recent experience, Tam would be well-suited for roles such as: Freelance Management Consultant, Chief of Staff, Revenue, Consultant.
Tam's most recent position is Freelance Management Consultant at Freelance.
In recent years, Tam has worked for Freelance, Everphone, and McKinsey & Company.
Tam is most experienced in industries like Healthcare, Agriculture, and Construction. Tam also has some experience in Energy, Manufacturing, and Information Technology.
Tam is most experienced in business areas like Strategy, Finance, and Marketing. Tam also has some experience in Sustainability Management, Sales, and Project Management.
Tam has recently worked in industries like Healthcare, Agriculture, and Construction.
Tam has recently worked in business areas like Finance, Strategy, and Marketing.
Tam holds a Bachelor in International Management from Lancaster University & ESB Reutlingen Double Degree.
Tam is immediately available full-time for suitable projects.
Daily rate distribution
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Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 14 Nov 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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