Tech Lead - Sr. Software Engineer - Python + React (521)

Want to get to the next step in your international career? We can support you! Ubiminds is a GPTW-certified, people-first company that partners with American software product companies to scale their development footprint. Ubi custom-curates Brazilian top 5% talent for their LATAM strategy, offering a unique combo of staff augmentation and employer-of-record services.   The client you'll be working with has undergone a major transformation over the last five years! They shifted from a typical training company to a tech-focused competitor with top-notch content. In 2018, they switched to subscription-based digital learning using the All-Access Pass platform. In 2021, they acquired a key player with clients like Slack, Airbnb, Pinterest, and Intuit. Now, they're positioned to lead in edtech. Their Platforms team is looking for great talent with a growth mindset to join and help grow their product.   Challenge As a Senior Software Engineer - Python + React, you will build products to help organizations train their employees and overcome their most pressing people-related problems at scale. You will work with product, design, data, and content teams to build a modern learning platform with an emphasis on performance and scalability.   What you'll do Build You will ship regularly and iteratively, writing testable, readable, and maintainable code. Develop a deep understanding of how data flows through complex systems and work with intricate data models. Use AI-assisted development tools responsibly to improve velocity while maintaining code quality. Design and implement solutions considering scale, security, performance, and privacy. Tech Lead skills - Guide other engineers on best practices for safely and effectively integrating AI into their development workflows. - Help junior engineers develop the technical skills needed to become tomorrow’s senior engineers. - Propose and help implement improvements to our engineering processes, including (but not limited to) how to adapt as AI continues to advance. - Participate in and lead code reviews, share learnings through presentations or documentation, and mentor others.   Collaborate Engineers participate early in the product development process. You will review quantitative and qualitative research about our clients and learners and weigh in on the product strategy and roadmap. Collaborate with fellow Engineering Team Members in Design and Operational Reviews to guide technical decision-making and identify performance issues.  Partner closely with Product to provide multiple viable technical paths for new features and improvements. Embrace our writing-focused culture: much of our collaboration, planning, and ideation happens in written form.   Support & Learn - You will work with the product, design, and support teams to ensure users get the most value from the products you've built. - Fix bugs and performance problems. - Embrace our writing-focused culture: much of our collaboration, planning, and ideation happens in written form. - Demonstrate curiosity and a willingness to learn unfamiliar technologies or domains. - Participate in and lead code reviews, share learnings through presentations or documentation, and mentor others.   In order to succeed in this position, you will need:   Mandatory skills - 7+ years of experience as a Software Engineer. - Experience coding in a production Python/Django environment - Experience with React and TypeScript.  - Experience writing SQL queries and designing relational data models. - Experience using agentic development workflows.   Nice-to-have - Ability to articulate where AI workflows create leverage for a small team and where they create liability. - Exposure to infrastructure-as-code tools like Terraform. - Experience with tiered web application architecture, including backend services, APIs, and frontend integration - Experience creating performance monitors and dashboards using observability tools such as Datadog. - Experience improving