Shash Tandon

1:1 GTM mentorship · Prague, working across Europe

The jump nobody explains.

1:1 mentorship for GTM professionals moving from individual contributor to team lead, team lead to senior leadership, or into GTM from a different career altogether.

no pitch deck, no pricing page — just a conversation first.

ADPList Approved Fellow Mentor — book a free session directly on ADPList

Built and scaled go-to-market teams at

Proton Productboard Apify Resistant.ai

Proton, Productboard, Apify, Resistant.ai

Who this is for

You'll probably recognize yourself here.

01

IC promoted to team lead

  • Managing people who were your peers last month
  • Imposter syndrome as the "accidental manager"
  • No one told you what the job actually is

02

Team lead aiming for senior leadership

  • Solid results, but the title isn't moving
  • Asking for the promotion instead of waiting to be noticed
  • Interview prep for a level you've never worked at

03

Moving into GTM from elsewhere

  • Translating unrelated experience into GTM language
  • Starting over with zero credibility in a new function
  • Negotiating salary with no track record in the field
Shash Tandon, GTM career mentor based in Prague

that's me ↓

Who's behind this

Someone who's actually done the jobs.

15+ years in B2B SaaS sales, customer success, and go-to-market. Head of Sales at Proton, where I scaled the team from 1 to 10+ people across eight consecutive quarters over target. Before that, Senior Enterprise CSM at Productboard, running at 125% net revenue retention. I've also advised Apify and Resistant.ai on building GTM functions from scratch.

My own path here wasn't a straight line into sales. I trained as an electrical and electronics engineer, then did an MBA in finance, and ended up in B2B SaaS almost by accident. What kept me there was scaling teams and, along the way, hiring, promoting, and mentoring the people who made those functions work. I've been on both sides of the exact jumps I now coach people through. Based in Prague, working across Europe — primarily CEE, Germany, the Netherlands, and the Nordics.

1 → 10+

team scaled at Proton

8/8

quarters over target

125%

net revenue retention

Three tracks

Pick the jump you're in the middle of.

IC → Team Lead

For people newly managing, or about to.

What we work on

  • Your first 90 days as a manager
  • Managing people who used to be your peers
  • Delegating without losing your own execution
  • Feedback that actually lands

Team Lead → Senior Leadership

For leads ready to stop waiting to be noticed.

What we work on

  • Building the case for your own promotion
  • Cross-functional influence without formal authority
  • Executive communication and interview prep
  • Salary negotiation

Career Change → GTM

For people moving into sales, CS, or GTM strategy.

What we work on

  • Translating your background into GTM language
  • Choosing the right entry point for you
  • Building credibility fast, from zero
  • Your first 90 days in a new function

Sessions are free right now, via ADPList or booked directly. Paid engagement is planned later, once there's a real track record to point to.

Testimonials — coming soon

This practice is new enough that I don't have verified client quotes yet. Real ones will go here once I do — not before.

FAQ

Questions people actually ask.

How do I know if I'm ready to move from individual contributor to team lead?

Strong individual performance is necessary but not sufficient. The signals that usually matter more: whether you already informally coach or unblock peers, whether you can explain your own process clearly enough for someone else to repeat it, and whether you're motivated by team outcomes as much as your own number. If those aren't there yet, that's exactly what to build before the move, not after it.

What actually separates a strong individual contributor from someone ready to lead a team?

Performing the job well and being ready to lead people who do the job are genuinely different skill sets. The clearest signal is whether you can turn your own instincts into something teachable: a process, a framework, a way of coaching, rather than just doing the work faster or better yourself.

What skills matter most when moving from team lead to senior GTM leadership?

The jump from team lead to VP or Head of typically requires strategic and cross-functional skills that managing your own team doesn't teach on its own: forecasting and board-level reporting, org design, hiring at scale, and influence across product, marketing, and finance rather than just your own function.

Is imposter syndrome normal when moving into a leadership or GTM role?

Yes, and it's one of the most consistent things people report at every one of these transitions. Most people are promoted into leadership because they were excellent at their previous job, not because anyone taught them how to lead, sometimes called the “accidental manager” problem, and it's the norm, not the exception. It's not usually a sign you're in the wrong role, it's the ordinary cost of doing something you haven't done before.

How do I manage people who used to be my peers?

Have a deliberate one-on-one reset conversation with each former peer early rather than letting the relationship redefine itself through silence. Be explicit about your decision-making style and standards instead of assuming it's understood. And resist the instinct to out-produce your own team to prove you deserve the promotion, your job changed from doing the work to making everyone else better at it.

Does this only apply to GTM, sales, or customer success roles?

The core of this work, building a promotion case, learning to lead instead of just perform, managing former peers, closing the confidence gap, isn't specific to any one function, even though my own background is GTM and revenue leadership. Professionals facing the same jump in engineering, product, or elsewhere are also a good fit.

I'm changing careers into sales, customer success, or GTM from a different background. Where do I start?

Start by mapping which of your existing skills genuinely transfer, communication, problem-solving, domain expertise, and which gaps are real and need to be closed before you're a credible candidate. Most career changers either undersell what already transfers or try to compete on GTM-specific experience they don't have yet. Both are fixable once they're named clearly.

Which of my existing skills actually transfer into a GTM role?

It depends heavily on your background, but the common transferable skills are structured communication, handling objections or resistance, technical or domain fluency if you're coming from a specialist field, and any prior experience managing relationships or expectations. The gap is usually GTM-specific process and vocabulary, which is learnable faster than most career changers expect.

How do I negotiate salary when I'm interviewing for a new role?

Negotiate after you have a written offer, not before, and let them name the first number where possible. A competing offer is your strongest leverage, and it's worth surfacing rather than hiding. Expect it to be a normal part of the process: most employers don't expect their first offer to be accepted immediately.

How do I prepare for interviews for a team lead or senior leadership role?

Leadership interviews test different things than individual contributor interviews: how you'd handle an underperforming report, how you communicate a hard decision, and how you think about tradeoffs across a team rather than a single deal or account. Prepare specific, real examples for each of those, not just a rehearsal of your individual track record.

When and how should I ask for a raise?

The strongest timing is right after a clear, documented win, not during a scheduled review when budgets are often already fixed. Anchor the number in market data for your role and level rather than personal financial need, and treat it as the start of a conversation, not a final demand.

How do I ask for a promotion without just waiting to be noticed?

Build the case before the conversation, not during it: a short written summary of what you've delivered, the added scope you're already carrying, and the specific title or scope you're asking for. Bring it as a planned conversation, not an ambush, and ask what evidence your manager would need to say yes, rather than just stating that you deserve it.

I was passed over for a promotion. What now?

Ask directly for the specific, concrete reasons rather than accepting a vague explanation, and get them in writing or a follow-up email if you can. Give yourself real time to process the disappointment before deciding anything. Then use those reasons as the explicit checklist for the next attempt, or as the honest signal that it's time to look elsewhere.

What are the signs of a career plateau, and what should I do about it?

The clearest signs are no growth in scope or responsibility for a long stretch, no salary movement, and a sense that your work is increasingly handed to others seen as more capable. It's rarely one bad quarter, it's a pattern. The useful next step is separating what's fixable where you are from what genuinely requires a different team or company.

I'm a customer success manager who feels underpaid, overworked, or stuck. Can you help me find a better role externally?

Often, yes. If the role itself is fine but the company isn't, no growth path, chronic understaffing, pay that hasn't kept pace with your scope, the fix is usually external rather than internal. That means repositioning your resume around outcomes rather than tasks, being deliberate about which companies you target instead of applying broadly, and negotiating hard once an offer is actually on the table.

Is this the right fit for me?

This is built for individual contributors preparing for a promotion to team lead, team leads working toward senior leadership, and professionals moving into sales, customer success, or GTM from a different background. It's probably not the right fit if you're already at VP or C-level and need board-level executive coaching, or if what you want is a structured multi-week bootcamp rather than 1:1 conversations tied to your specific situation.

How is this different from a generic career coach?

Generic career coaches are trained in coaching methodology but haven't necessarily done the job themselves. I've hired, promoted, and managed the exact roles I coach people into, Head of Sales at Proton, GTM advisor at Apify and Resistant.ai, so the guidance is grounded in what actually gets someone hired or promoted in this specific field, not a general coaching framework applied to any career.

What actually happens on the call?

We talk through where you are, what's stuck, and whether ongoing mentorship makes sense. No slides, no sales pitch, just a direct conversation about your specific situation.

What if I'm not sure which track fits me?

That's fine, say so on the call. Most of this gets figured out together in the conversation, not picked off a menu beforehand.

How long are sessions, and how much time do I need to commit each week?

The intro call is 15 minutes. There's no fixed weekly commitment beyond that, most people book a single focused session before a specific moment, and some move to an ongoing monthly cadence through a longer transition. It's built around your situation, not a fixed-length program.

Is this actually free?

Yes, for now. Sessions run via ADPList or booked directly while I build a track record. Paid engagement is planned later, priced properly once there's real evidence it's worth it.

Do you work with people outside the Czech Republic?

Yes. Based in Prague, working remotely across Europe, primarily CEE, Germany, the Netherlands, and the Nordics, with sessions conducted in English.

Can my company sponsor this for our team?

Yes, see the page for HR and L&D teams for how this works as an employee benefit or a structured cohort program.

Get in touch

Let's talk before anything else.

Book a free 15-minute call to see if this is useful, no pitch, no pricing. Prefer writing first? Use the form.

Submitting this form sends your details to me via Netlify. See the privacy policy.