We’re looking for a senior Python engineer ready to step into leadership, or an experienced technical lead who enjoys staying hands‑on.You’ll lead three backend developers working on payments, identity verification (KYC), location services, and other external integrations. You’ll help the team deliver new capabilities, evolve existing integrations, and keep them reliable in production.A formal lead title isn’t required. Experience guiding projects, mentoring colleagues, or coordinating technical delivery is a strong foundation for this role.Our stack: Python, Django, PostgreSQL, Redis, Kafka, AWS.ResponsibilitiesDesign and build integrations, owning delivery from requirements and technical decisions through deployment, launch, and ongoing improvementGuide the team’s technical direction and delivery through clear responsibilities, design and code reviews, mentoring, shared knowledge, and constructive performance feedbackWork with product, engineering, and external partners to agree priorities, communicate trade-offs, and deliver the intended resultsImprove existing integrations through testing, monitoring, logging, alerting, and documentationIntroduce practical engineering improvements and help the wider team adopt themInvestigate production issues and participate in the team’s on‑call rotationRequirements5+ years of software development experience, with Python as your primary language and strong backend engineering skillsHands‑on production experience with payments or similar financial systems, such as wallets, ledgers, transfers, or settlement,



where duplicate or missing operations can affect money or financial recordsExperience personally launching and supporting an integration, resolving production problems, and verifying that affected transactions and records were recovered correctlyExperience building reliable API and event‑driven integrations, including handling duplicate notifications, concurrent requests, delayed responses, and recovery from failuresExperience designing scalable services, working with databases, writing unit and integration tests, and using monitoring tools to investigate production behaviorExamples of guiding a project, mentoring engineers, or coordinating delivery, alongside clear communication and an interest in developing your leadership skillsGreat to haveExperience with KYC providers and identity‑verification workflowsExperience with both incoming and outgoing payments and reconciliationFamiliarity with Datadog, CloudWatch, Grafana, or similar toolsExperience in startups, sports, betting, or gaming productsWe are 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. Wherever we are in the world, we pride ourselves on being a close‑knit,



focused team that is:Welcoming and FriendlyWe want to reflect the diversity of the cities we serve. By creating an inclusive culture where everyone can thrive, we’ll make Fliff better for employees and customers alike.Lively and CreativeWe respect and value each other’s ideas, experience and expertise. There is no such thing as a bad idea; only ideas that are executed and ideas that are discarded after consideration.Stimulating and RewardingWe know bright minds love a challenge, and we understand your desire to see your hard work pay off. We’ll make sure your daily tasks align with your career ambitions as we grow together.Equal Employment Opportunity StatementFliff is an equal‑opportunity employer. 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.IMPORTANT NOTICEThe 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.#J-18808-Ljbffr

📌 Lead Python Engineer, Integration Team (Madrid)
🏢 Fliff
📍 Madrid