Head of Growth

sun.store co; Warszawa; Hybrid; PLN 260,000 - 420,000; Full time

Benefits offered by this job

Hybrid work in Warsaw

Private medical care Lux Med

10 paid workation days

Job summary

sun.store co in Warsaw is seeking a Head of Growth to own growth across European markets, defining strategy, targets and building the team. Hybrid role with two days in the Warsaw office; you will work with leadership, product, sales and marketplace to drive GMV, active buyers and suppliers.

This is a hands-on leadership role with data-driven decision making and an AI-first approach. You will lead the growth function, shape the roadmap and budgets, and collaborate across product, marketing and

Qualifications

• 8+ years in growth, performance or digital marketing, including 3+ years leading a team.
• Track record of growing a business, not just a channel: you can show the GMV, revenue or user numbers you moved and how.
• Experience with two‑sided marketplaces and balancing supply and demand.
• Deep understanding of unit economics : LTV:CAC , contribution margin , payback , cohorts . You can build the growth model and defend it to the board .
• Strong command of acquisition channels . You know Google and Meta well enough to set direction and challenge specialists .
• Experience improving activation and retention with product teams , through onboarding , CRO, lifecycle and CRM.
• Strong analytical skills : funnels , cohorts , experimentation , comfort with SQL or BI tools .
• An AI- first way of working , including MCP servers or similar to connect AI with data and tools .
• Experience hiring and leading people .
• English C1+. German, Dutch or French is a plus.

Responsibilities

• Develop growth strategy and allocate budget across markets.
• Own acquisition strategy across paid, brand, SEO, partnerships.
• Lead activation and optimization of onboarding, sign-ups and first transactions.
• Drive retention through lifecycle and CRM programmes.
• Grow supply and liquidity by expanding active suppliers and balanced markets.
• Build go-to-market plans for new EU countries and segments.
• Run experimentation and analytics; own dashboards and cohorts.
• Apply AI tools and automation to scale insights without headcount growth.

Skills

Growth strategy

Acquisition strategy

Activation & CRO

Retention & CRM

Supply & marketplace growth

A/B testing & analytics

SQL / BI tools

AI-first growth

Team leadership

English proficiency

Tools

Google Ads

Meta Ads

SEO tools

CRO tools

SQL

BI tools

Job description

Position: Head of Growth

About the role:

As Head of Growth you own how sun.store grows : more active buyers and suppliers , more transactions , more GMV, across European markets . You set the growth strategy and targets , decide where to invest , and build the team and systems that deliver them .

This is a leadership role with a hands-on attitude . You work directly with the leadership team , product , sales and the marketplace team, and you are accountable for growth results , not channel metrics . Hybrid , Warsaw office .

What you'll own:

• Growth strategy and targets . Set the growth model for a two-sided marketplace : which markets , segments and levers come first , with targets for GMV, active buyers , new suppliers , CAC, LTV and payback . Decide how the growth budget is split across channels and initiatives .
• Acquisition . Own the acquisition strategy across paid , brand , SEO, partnerships and outbound support for sales . You lead the Performance Marketing Lead , who runs paid channels hands‑on .
• Activation and conversion . Work with product on onboarding , sign‑up and first‑transaction funnels . Find where users drop off and fix it through product changes , CRO and experiments .
• Retention and repeat purchases . Turn first‑time buyers into regular customers through lifecycle and CRM programmes , reactivation and account‑based plays for key accounts .
• Supply growth and liquidity . Grow the number and quality of active suppliers and offers , and keep supply and demand balanced in each market.
• Market expansion . Build go‑to‑market plans for new EU countries and segments , and decide when a market is ready to scale .
• Experimentation and analytics . Run one experimentation process across the funnel . Own growth dashboards and cohort analysis , and tell leadership clearly what works , what does not and why .
• AI- first growth . Use AI tools , MCP servers and automation to scale analysis and output without scaling headcount at the same rate .
• Seniority and scope.

This role is :

• Accountable for company growth results (GMV, active users , new suppliers ), not for a single channel.
• A team builder : you lead the Performance Marketing Lead from day one and grow the team as the business scales .
• A strategic partner to the leadership team , product and sales , with a say in roadmap and budget allocation .
• Hands‑on with data: you read the numbers yourself and can challenge any channel owner .

This role is not:

• A paid ads specialist . You must understand Google and Meta deeply , but you do not run the accounts day to day .
• A brand or communications role. Brand and content serve acquisition here .

What you bring:

• 8+ years in growth , performance or digital marketing, including 3+ years leading growth or a team, ideally at a marketplace , e-commerce or B2B platform.
• A track record of growing a business, not just a channel: you can show the GMV, revenue or user numbers you moved and how .
• Experience with two‑sided marketplaces and balancing supply and demand .
• Deep understanding of unit economics : LTV:CAC , contribution margin , payback , cohorts . You can build the growth model and defend it to the board .
• Strong command of acquisition channels . You know Google and Meta well enough to set direction and challenge specialists .
• Experience improving activation and retention with product teams , through onboarding , CRO, lifecycle and CRM.
• Strong analytical skills : funnels , cohorts , experimentation , comfort with SQL or BI tools .
• An AI- first way of working , including MCP servers or similar to connect AI with data and tools .
• Experience hiring and leading people .
• English C1+. German, Dutch or French is a plus.

Nice to have

• Experience launching new European markets .
• Background in solar , energy , construction or industrial B2B.
• Experience at a scale‑up during fast growth .

What we offer:

• Ownership of growth at a European marketplace , with direct impact on company results .
• A seat at the table with the leadership team and a say in strategy and budget .
• A disruptive startup in the fast- growing photovoltaics industry , backed by an industry parent company .
• The chance to build your own growth team.
• 10 paid workation days per year, under the applicable contractual arrangements.
• Hybrid work: two days per week in our Warsaw city‑centre office, with the rest of the week remote.
• Private medical care through Lux Med.

Recruitment process

Intro call (30 min).

Interview with the hiring manager (60 min).

Case study : a 6-month growth plan for one market or one side of the marketplace , presented to the team.

Meetings with product and sales leads .

Final conversation and/ or reference checks .

O ffer .