Senior Python Engineer - Core

Description

Job Summary: As a Senior Core Developer at Stark Bank, you will structure and optimize our internal infrastructure, building tools to enhance engineering team efficiency. Key Highlights: 1. Collaborate to design, develop, and maintain core services. 2. Provide guidance and mentorship to junior and mid-level engineers. 3. Potentially assume the role of Team Lead for the Core Squad. **About Stark Bank** At Stark Bank, we are more than a digital bank for businesses: we are strategic partners who, since 2018, have been redefining the future of corporate financial services in Brazil. We offer a comprehensive suite of services—from agile payment and invoice processing to intelligent accounts receivable management—all integrated and automated through a robust, innovative API. We don’t settle for merely optimizing processes; we aspire to become the largest bank in financial technology, empowering businesses to thrive with solutions that eliminate bureaucracy and drive efficiency. We believe that revolutionizing the financial system hinges on our relentless pursuit of innovation and our ability to transform complex problems into impactful solutions. Every line of code, every new feature we build, is designed to enable companies to focus on what truly matters: strategy and growth. Our ambition is bold: to build the best banking ecosystem in technology and service for businesses in Brazil. To achieve this vision, we need curious, persistent, and challenge-driven minds. If you resonate with the meticulousness, consistency, and persistence that drive us—if you believe in continuous improvement and place the customer at the center of your actions—and if you seek a collaborative, challenging environment where ambition meets the opportunity to scale, then Stark Bank is the place for you. **The Challenge:** As a Senior Developer in the Core Squad, your primary challenge will be to structure and optimize Stark Bank’s internal infrastructure, serving as a critical link between this engineering environment and our internal systems. You will be responsible for developing tools that streamline developers’ day-to-day work, thereby increasing the efficiency and productivity of the entire engineering team. ### **You will:** * Collaborate with the Core Squad to design, develop, and maintain core services. * Ensure seamless communication among services, with emphasis on authentication, onboarding, offboarding, and telephony messaging layers. * Manage security-related tasks, including handling WAFs and responding to pentests. * Oversee permission management and user access control. * Integrate the authentication application with other systems. * Provide guidance and mentorship to junior and mid-level engineers within the squad. * Work closely with stakeholders to define and execute an ambitious roadmap. * Potentially assume the role of Team Lead for the Core Squad. ### **We expect you to:** * Be proficient in programming languages such as Python. * Have strong understanding of DevOps practices and tools. * Have experience with security protocols and blue team activities. (Preferred) * Possess excellent problem-solving skills and the ability to handle complex challenges. * Demonstrate strong interpersonal and communication skills, with a collaborative approach to teamwork. * Have experience in the financial sector. (Preferred) ### **What boosts your chances:** * Experience managing authentication layers and user onboarding/offboarding processes. * Background in handling WAFs and responding to pentests. * Prior experience in a leadership or mentorship role. * Experience integrating authentication applications with multiple systems. **What We Offer:**At Stark Bank, we invest in your success and believe in a workplace where you can thrive. Beyond a challenging and innovative environment, we offer: **Our Benefits** Competitive monthly salary aligned with market standards. Annual bonus recognizing your achievements and impact. Housing allowance (subject to office distance policy). Creditas to help you achieve your financial goals. In-company English classes to accelerate your professional development. SulAmerica medical and dental insurance. TotalPass for your physical health. Life insurance for your peace of mind and your family’s. SESC membership for access to diverse cultural and leisure activities. Stark Card for Meal and Food Allowance, offering flexibility in your daily routine. Transportation allowance or parking space to facilitate your commute. Uber voucher for specific commuting situations. **Work Model:** We operate under a 100% in-office model, and you’ll join our outstanding team in the heart of São Paulo: Rua Pamplona, 145 – Cerqueira César, São Paulo – SP. **Join Stark!** If you identify with our purpose and want to make a difference in the future of financial services for businesses, apply now! **Want to learn more about Stark Bank?** Follow us on social media: LinkedIn Stark Bank and LinkedIn Stark Infra; Visit our website and test our product via Sandbox; Learn more about us on our Blog; Follow us on Instagram @starkbank. We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.