Billing Manager; Testora)

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.

• Deliver what matters
• Respect and support others
• Initiate and own
• Voice openly
• 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  

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.

• 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

• 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, Pay Pal, Braintree, Adyen, Checkout, and others
• Confidence with Orchestration platforms, 3
  
  Ds, 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

• 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

• 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…