[Hiring] Senior Python Engineer @Fliff

Role Description

We’re looking for a Senior Python Engineer to join our Wallet team, which owns critical services in our product. The team is responsible for players’ wallets, bet placement, settlements, deposits and withdrawals, and other critical backend services. We’re looking for engineers with strong backend fundamentals and experience building reliable, high-load systems with complex business logic.

What You’ll Do

• Take full ownership of backend features and improvements, from design through implementation, deployment, and production support.
• Design, develop, and maintain scalable, high-performance backend services using Python and Django, including asynchronous components where applicable.
• Write unit and integration tests to ensure system reliability, prevent regressions, and improve overall test coverage and testing practices.
• Estimate software development effort for features and long-term technical initiatives.
• Collaborate with product, QA, and engineering teams to turn requirements into well-defined technical solutions.
• Participate in code reviews, help raise engineering quality, and contribute to technical decisions.

Qualifications

• At least 5+ years of development experience, with Python as the primary language.
• Strong experience building production backend systems with Django and asynchronous python (asyncio).
• Strong fundamentals in algorithms, data structures and concurrency.
• Experience in architecture design of highly loaded and scalable solutions.
• Hands-on experience with relational databases (PostgreSQL), including writing complex SQL queries, schema design, migrations, performance tuning.
• Experience with Redis for caching and state management in distributed systems.
• Strong understanding of the development cycle from requirements analysis and deployment to application monitoring.
• Willingness to participate in on-call rotations.

Requirements

• Experience with Go (Nice to Have).
• Production experience with Apache Kafka (Nice to Have).
• Prior experience working with systems supporting 1M+ users (Nice to Have).
• Experience in writing automated tests, measuring test coverage, and defining test automation strategies (Nice to Have).
• Experience in sports/betting industries (Nice to Have).

Benefits

• Welcoming and Friendly environment.
• Lively and Creative culture.
• Stimulating and Rewarding work aligned with career ambitions.

Company Description

Fliff is a multinational company with our headquarters based in Philadelphia, and offices in New York, Austin, and Sofia, Bulgaria. Wherever we are in the world, we pride ourselves on being a close-knit, focused team that is welcoming and friendly, and the work that we do is always interesting and rewarding.

We celebrate diversity and are committed to creating an inclusive environment for all employees. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.

Join Our Team!

If you're ready to be part of an exciting, innovative, and dynamic team, apply now to help shape the future of sports gaming with Fliff.

IMPORTANT NOTICE: The privacy and security of applicant information is paramount and we take fraud attempts very seriously. Please note that Fliff will never ask for payment or personal financial information during the application process. All of our legitimate job opportunities can be found on our official career site ( https://www.getfliff.com/careers ). Please be cautious of communications and links that come from non-company email addresses (@getfliff.com), social media messaging platforms or unsolicited phone calls.