Head of Growth

Traffit; Warszawa; Hybrid; PLN 300,000 - 550,000; Full time

Benefits offered by this job

Ownership of growth

Leadership on growth team

Startup in photovoltaics

Build your growth team

10 paid workation days

Hybrid work in Warsaw

Lux Med private medical care

Job summary

Traffit is seeking a Head of Growth to own the growth strategy across European markets, steering acquisition, activation, retention, and supplier growth. You will lead a hands-on team, define budgets, and partner with leadership to scale the platform.

You will collaborate with product, sales and the marketplace team, be data-driven, and drive experiments, dashboards and AI-enabled processes to accelerate GMV and active users.

Qualifications

• 8+ years in growth, performance or digital marketing, including 3+ years leading a team.
• Experience with two‑sided marketplaces and balancing supply and demand.
• Deep understanding of unit economics: LTV:CAC, contribution margin, payback, cohorts.
• Strong command of acquisition channels; ability to guide Google/Meta strategies.
• Experience improving activation and retention with product teams via onboarding, CRO, lifecycle and CRM.
• Strong analytical skills: funnels, cohorts, experimentation; comfort with SQL or BI tools.
• AI-first approach with MCP servers or similar for data/tools integration.
• Experience hiring and leading people; English C1+; German/Dutch/French a plus.

Responsibilities

• Define growth strategy and targets across a two-sided marketplace and EU markets.
• Own acquisition strategy across paid, brand, SEO, partnerships, and outbound support.
• Collaborate with product on onboarding, sign-up and first-transaction funnels to reduce drop-offs.
• Drive activation, retention and repeat purchases through lifecycle and CRM programs.
• Grow active suppliers and balance supply-demand in each market.
• Build go-to-market plans for new EU countries and segments.
• Run experiments with dashboards and cohort analyses; report to leadership.
• Apply AI tools to scale analysis and outputs without headcount growth.

Skills

Growth strategy

Acquisition

Activation & CRO

Retention & CRM

Supply & liquidity

Go-to-market planning

Analytics & dashboards

AI-first mindset

People leadership

English proficiency

Education

Bachelor's degree or higher

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 .