About us

Gismart is a value-driven mobile app developer with a strong presence in the Health & Wellness, Utilities, and Music app markets. We have achieved a significant milestone of over 1 billion downloads worldwide, taking a step toward our mission of cultivating the well-being of people worldwide. With headquarters in London, UK, Gismart is a dynamic global company with a reach extending across Europe and far beyond. Our determined team comprises over 400 individuals who bring diversity, creativity, innovation, and relentless drive to the company. Gismart unites professionals from diverse backgrounds in entertainment, music, and tech, allowing us to play to each other’s strengths and succeed as a team.

Our mission

Become a stepping stone on our customers’ journeys of self-improvement.

Our values

Deliver what matters

Respect and support others

Initiate and own

Voiceopenly

Execute with quality

If you are passionate about mobile app development and want to join a company that’s reshaping the industry, Gismart is the place for you. We provide exciting career opportunities, a supportive workplace culture, and the chance to contribute to a team that is making a tangible impact. For more information on Gismart, visit gismart.com.

About project

Testora is a self-discovery app that helps users explore and analyze their personality, intelligence, relationships, and career strengths through engaging tests. The app offers personalized challenges, progress reports, and habit tracking, making Testora your go-to tool for self-awareness, stronger relationships, and personal growth.

Responsibilities

Monitoring the key performance indicators affecting billing efficiency: authorization rate, risk metrics, and cost optimization (including detailed analytics)

Negotiating terms and conditions with the payment providers

Working closely with the product managers, support team, finance department, management, and development team

Doing research on the most popular payment methods in different markets

Requirements

1+ years of experience as a Billing Manager or Anti-Fraud Manager

Experience with chargebacks, refunds, performance metrics, cost optimization, etc

Strong analytical mindset and systematic approach to problem-solving

Ability to work independently and formulate hypotheses and solutions to assigned problems

Experience with different PSPs: Stripe, PayPal, Braintree, Adyen, Checkout, and others

Confidence with Orchestration platforms, 3Ds, Payment tokenization, Chargeback protection, Amplitude, Jira, and Tableau

Solid knowledge of alternative payment methods, e.g., PIX, Blik, Cashapp, Revolut, etc

Upper-Intermediate level of English or higher

Would be a plus

Experience in the financial or banking sector

Experience working with payment systems

Understanding of unit economics and data-driven decision-making methodology

Experience creating technical requirements for developers and running A/B tests

Experience in negotiations with business partners

Employee Benefits

Remote-First Culture: Our team is diverse and extensive, just like our product portfolio. We provide a flexible working schedule and let you work anywhere in the world, either remotely or in one of our corporate hubs

Сoworking Compensation: We provide 100% compensation for coworking spaces in Ukraine (except Kyiv, where we have a cozy and autonomous hub) and 50% compensation for coworking spaces worldwide to make sure that everyone has a comfortable and inspiring workspace

Free Office Lunches: We want you to stay fueled and focused, so we provide delicious free lunches for everyone working from our hubs. It’s one less thing for you to worry about during a productive workday

Public Holidays Policy: Gismart observes public holidays based on the Ukrainian or Polish holiday calendars. Employees working in other locations are entitled to 12 public holidays per year

100% Sick Leave Compensation

Mental and Physical Health: To help you stay happy and healthy, Gismart will partially cover your medical insurance, sports activities, therapy costs