CRO Manager | Mid-Senior

Nord Security; Polska; Hybrid; PLN 110,000 - 180,000; Full time

Benefits offered by this job

Training & mentorship

Extra vacation days

Private health insurance

Mindfulness trainings

In-house gyms

Workation trips

Work from anywhere

Team events

Job summary

Nord Security is seeking an experienced Experimentation Specialist to own the full lifecycle of A/B testing across mobile apps and web. You will coordinate analysts, developers, designers, researchers, copywriters, and QA to run tests from ideation to publication.

You will analyze results, propose data-backed improvements to onboarding, pricing, checkout flows, and retention, and report outcomes to leadership. The role emphasizes fast, iterative optimization and documentation.

Qualifications

• 3+ years hands-on experience in A/B testing/experimentation, ideally with mobile apps (iOS/Android) or mobile web.
• Strong project management skills: plan, prioritize, and deliver multiple initiatives in cross-functional environments (Agile, Jira, Confluence is a plus).
• Adaptability and ownership in a fast-paced optimization process.
• Knowledge of statistics related to A/B testing: sample sizes, significance, funnels.
• Excellent communication and stakeholder management skills.
• Familiarity with app development processes and release cycles.
• Hands-on experience with tools like Firebase, Figma, Jira, and Looker.

Responsibilities

• Own and manage the entire experimentation lifecycle end-to-end from idea to launch and analysis, coordinating cross-functional stakeholders.
• Act as the project manager for experimentation initiatives: define scope, timelines, dependencies, risks, and delivery.
• Analyze user behavior from qualitative and quantitative data and propose optimization ideas to improve conversions and metrics.
• Create and test data-driven hypotheses and A/B tests across mobile onboarding, paywalls, pricing, and checkout flows.
• Track mobile funnels, paywalls, and channels for actionable insights and opportunities.
• Apply iterative optimization using established patterns while adapting to priorities.
• Perform data analysis of experiments and explain the WHY behind the data to improve UX and metrics.
• Communicate results and learnings clearly to stakeholders and maintain an experimentation knowledge base.

Skills

A/B testing

Project management

Agile methodologies

Statistics

Communication

App development processes

Looker

Tools

Firebase

Figma

Jira

Looker

Job description

The world's most advanced VPN, and a whole lot more.

If you're a curious problem-solver who carves their own path, join the team behind Threat Protection Pro, the NordLynx protocol, and the fastest VPN on the planet - tools that put privacy, security, and control back in people's hands.

Your impact? Helping millions take back control of their online security, privacy, and data.

Main Responsibilities

• Own and manage the entire experimentation lifecycle end-to-end - from idea intake and prioritization to launch, analysis, and documentation - coordinating cross-functional stakeholders (analysts, developers, designers, researchers, copywriters, QA);

• Act as the project manager for experimentation initiatives: define scope and timelines, manage dependencies across teams, identify and mitigate risks, and ensure experiments ship on schedule;

• Conduct user behavior analysis based on qualitative and quantitative data sources and provide ideas to increase conversion rate and other relevant metrics (billings, retention, refunds);

• Create and execute testable, data-driven hypotheses and A/B tests tailored to mobile user journeys (onboarding, paywalls, pricing, checkout flows);

• Track the performance of mobile funnels, paywalls, and acquisition channels to find actionable insights and react to identified problems and opportunities;

• Apply an iterative optimization approach based on established patterns, while adapting quickly to shifting priorities and business needs;

• Perform data analysis of experiments: explain the WHY behind the data and deliver actionable insights to further improve UX, conversion rates, or other relevant metrics;

• Communicate experiment results, learnings, and next steps clearly to stakeholders and leadership, maintaining a well-documented experimentation knowledge base.

Core Requirements

• 3+ years hands-on experience in A/B testing/experimentation, ideally with mobile apps (iOS/Android) or mobile web;

• Strong project management skills: proven ability to plan, prioritize, and deliver multiple concurrent initiatives in cross-functional environments (familiarity with Agile, Jira, Confluence is a plus);

• Adaptability and ownership: comfortable switching between strategic planning and hands-on execution in a fast-paced, intensely iterative optimization process;

• Knowledge of statistics related to A/B testing: sample sizes, statistical significance, marketing funnels;

• Excellent communication and stakeholder management skills;

• Familiarity with app development processes and release cycles;

• Hands-on experience with tools like Firebase, Figma, Jira, and Looker;

What We Offer

• Sharpen your edge: training, mentorship, and room to grow - always.

• Take the time you need: extra vacation days, sick days, and time off when life calls.

• Get premium healthcare: private health insurance in Lithuania and Poland - fully covered.

• Protect your peace: enjoy free subscriptions to Calm, Headspace, and Mindletic, and our own resilience and mindfulness trainings.

• Own your fitness: in-house gyms, sport cards, online workouts, and personal guidance - on us.

• Pack your bags for workation: experience our company-wide trip abroad to the fullest.

• Work from anywhere: work from wherever keeps you in the zone.

• Celebrate your milestones: birthdays, weddings, and new family members - all deserve a gift.

• Parent with ease: children's summer camps and flexibility around the schedule - because parenting never pauses.

• Join the party: team building and company events people talk about for months.

• Unlock Cyber City: coffee bar, open gyms, kids' room, music room, massage chairs - our Vilnius HQ is yours to enjoy.

Kindly refer to our Privacy Notice for Recruitment Candidates for comprehensive information regarding our data handling procedures throughout recruitment processes.

We expect all candidates to provide accurate and complete information during the recruitment process. While limited use of AI tools to refine application materials is acceptable, candidates remain fully responsible for ensuring that their submissions reflect their own qualifications, skills, and experience. Any failure to do so may negatively affect participation in the recruitment process. If broader AI assistance is allowed for a particular role or stage, we'll let you know in advance.

By submitting your application, you acknowledge that it may be processed using automated tools for evaluation purposes. As part of our recruitment process, we may use an AI-based application review tool to help assess applications based on skills and experience relevant to the role. This technology is used to support - not replace - human decision-making, and every application is ultimately reviewed by a recruiter.

If you would like more information about how AI is used in this process or wish to exercise your rights under applicable data privacy laws, please contact us at [e-mail]. Should you prefer to opt out of the automated evaluation, please submit your application directly to [e-mail].