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Senior Frontend Engineer

Splitmetrics

Warsaw, Poland Remote permanent

Posted: January 28, 2026

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Quick Summary

Senior Frontend Engineer

Job Description

SplitMetrics is a global software company offering an ecosystem of products and services that serve as a growth engine for top mobile-first businesses worldwide. Our ecosystem includes:

• SplitMetrics Acquire, a platform for automating and optimizing Apple Ads. 

• SplitMetrics Agency, a full-service mobile marketing agency staffed by top experts.

• SplitMetrics Optimize, an A/B testing platform recognized as the ASO Tool of the Year.

• App Radar by SplitMetrics: an ASO platform with advanced keyword and competitor insights.

Why SplitMetrics? 

• For almost 10 years, we've been at the forefront of the mobile marketing industry, providing an ecosystem of market-leading technologies.

• An Apple Ads Partner, SplitMetrics is the 1st company to build the Apple Ads management platform. 

• Working with top mobile companies and brands globally: Skyscanner, Glovo, Flo, Babbel, Wooga and many more.

• Generating an impressive transaction volume, with over $1 billion in ad spend flowing through our ecosystem.

• Integrated AI into our strategic approach since 2023.

• Effectively collaborate across 20+ countries with a remote-first and supportive culture.

In this role you will:

• Take full responsibility for designing, developing, refactoring, maintaining, and improving our front-end services using: react, redux, highcharts.

• Help define the team roadmap and architecture based on technology and business needs.

• Participate in code reviews to ensure code quality, security, and knowledge sharing.

• Fighting legacy approaches and moving the project to a classic React stack.

• Active participation in writing e2e tests in Selenium (or desire to develop in this direction).

About you:

• Advanced knowledge of JavaScript.

• 5+ years of experience with one of the popular JavaScript frameworks: Angular, React, Vue.

• Strong background in architecture design, especially related to data management, API performance, and system scalability.

• Experience in working with data-intensive applications, query optimization, and efficient data processing.

• Deep understanding of web performance, browser, and DOM mechanics.

• Knowledge of security best practices, including protecting data, preventing vulnerabilities, and ensuring secure architecture.

• Experience in writing unit and e2e tests.

• Good understanding of CSS, with the ability to layout pixel-perfect interfaces.

• Strong focus on business implications when making decisions on architecture.

• B1 English level knowledge.

What is there for you?

• Time Off: Vacation and public holidays following your country's regulations. Additional PTOs annually for personal rejuvenation.

• Health and Wellness: Medical insurance or health care compensation. Paid sick leave to prioritize your well-being.

• Professional Development: Top online/offline conferences and mobile industry events. Internal courses for continuous professional development.

• Performance and Growth: Micro-management-free and supportive management style. Semi-annual performance review sessions. New career opportunities through our internal mobility program.

• Team Engagement: Corporate online events and offline team retreats. Collaboration between teams through shared OKRs. Environment conducive to open dialogue and constructive feedback.

• Work Flexibility: Flexible working schedule for a better work-life balance. Remote-first working environment.

• Workspace Options: Coworking costs coverage program. Office hubs in key locations for a convenient and productive work environment.

Our Culture

At SplitMetrics, our values are not just words — they guide everything we do. To achieve our ambitious goals and maintain success, we stand united by our core behaviors:

• Move Fast

• Get Sh*t Done

• Build Together

• Strive for Transparency

• Own What You Do

• Learn + Share = Excel

Remote Hiring Guidelines: At SplitMetrics, we welcome team members from various countries. While all our roles are remote, certain positions may have specific eligibility requirements based on location. Our Talent Acquisition team can help answer any questions about location after starting the recruiting process.

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