




Summary: Seeking a Senior Python Developer to design, build, and maintain backend applications for international clients, focusing on challenging problems and clean, maintainable code. Highlights: 1. Design and develop backend applications using Python and modern frameworks. 2. Work on challenging problems with a focus on clean, maintainable code. 3. Collaborate in an Agile environment, contributing to engineering standards. **Hi there!** We are STX Next, a global IT consulting company specializing in customer\-focused software services. Join a group of 500 professionals dedicated to helping customers build outstanding products. Leveraging the latest advancements in the field, and a passion for innovation, we're shaping the future of technology one project at a time. **Are you the NEXT one?** **Type of contract** A B2B contract for your flexibility and competitive compensation package **Location** A remote work model encouraging work\-life balance. Work anywhere from Mexico. **Job description** ------------------- **What you'll work on** As a Senior Python Developer, you will design, build, and maintain backend applications for international clients. Depending on the project, you may work on APIs, integrations, cloud\-native platforms, data\-heavy applications, modernization initiatives, AI\-assisted workflows, or distributed backend systems. The work is challenging in the right way: real problems, real users, real architecture decisions, and teammates who care about doing things properly. This role is for someone who enjoys solving real problems, writing clean and maintainable code, and working with people who take engineering seriously without making the environment rigid. You will work with Python, modern backend frameworks, cloud\-native architectures, AI\-assisted workflows, and distributed teams that value ownership, curiosity, and practical delivery. At STX Next, our Python community is more than a staffing structure. Engineers share knowledge through code reviews, internal initiatives, meetups, technical discussions, and cross\-project collaboration. Even when teams work remotely, we make space for connection, learning, and direct technical exchange. **Responsibilities** -------------------- * Design, develop, and maintain backend applications using **Python** and frameworks such as **FastAPI, Django, or Flask**. * Build clean, maintainable, and efficient backend services, **APIs, integrations,** and business logic. * Participate in architecture decisions for scalable, secure, and production\-ready systems. * Write unit and integration tests as part of normal delivery. * Troubleshoot, debug, and resolve application and production issues. * Implement security, data protection, and reliability practices in backend systems. * Design, implement, and maintain automated builds, deployments, and CI/CD workflows. * Contribute to **DevOps** culture through containerization, deployment automation, observability, and production ownership. * Conduct code reviews and help raise the engineering standard across the team. * Share knowledge about relevant technologies, tools, frameworks, and engineering practices. * Collaborate with distributed teams, clients, and technical stakeholders in an Agile delivery environment. * Use AI\-assisted development tools where they improve quality, speed, documentation, testing, or refactoring. **Requirements** ---------------- **Must have:** * 5\+ years of professional experience as a Python Developer, with strong experience in **Python 3\.x.** * Experience with Python web frameworks such as **FastAPI, Django, or Flask.** * Experience designing and building REST APIs, backend services, integrations, and production\-grade applications. * Solid understanding of modern software architecture, including microservices, event\-driven design, containers, and distributed systems. * Experience with Docker and familiarity with Kubernetes\-based environments. * Strong understanding of engineering best practices, including clean code, SOLID principles, design patterns, testing, Git, and maintainable architecture. * Experience with SQL databases, preferably PostgreSQL. * Experience working with automated builds, CI/CD pipelines, and deployment workflows. * Practical experience using AI\-assisted development tools to support code generation, reviews, documentation, testing, refactoring, or problem\-solving. * Experience working in Agile teams, with the ability to deliver results without close supervision. * Strong analytical, problem\-solving, and communication skills. * Ability to work with ownership, autonomy, and technical discipline. * English proficiency at B2 level or higher. * Ability to collaborate well with distributed teams, give and receive feedback constructively, and contribute to a strong engineering culture. **Nice to have:** * Experience with more than one Python web framework. * Experience with frontend technologies such as JavaScript, HTML5, CSS3, React, Angular, or Vue. * Understanding of Python threading limitations, multiprocessing, asynchronous processing, and performance tradeoffs. * Strong unit testing, integration testing, and debugging skills. * Experience creating and maintaining containerized applications. * Experience with AWS, Azure, or GCP. * Understanding of serverless architecture. * Experience with NoSQL, cache, or analytical databases such as MongoDB, Redis, or DuckDB. * Experience with observability, logging, monitoring, and production support. * Experience integrating AI tools into team workflows. * Familiarity with Model Context Protocol, AI tool integrations, or structured AI workflow configuration. * Experience defining AI\-augmented workflows using structured formats such as YAML or XML. **Work model:** * Remote role based in Mexico. * Collaboration with international teams and clients. * English\-speaking technical environment. * Availability for overlap with Mexico, US, and European teams depending on project assignment. * Engagement model may vary depending on operational setup and candidate profile. **Benefits** ------------ **Remote\-First Flexibility** Work from where you feel most productive. We offer a remote\-first environment with the freedom to set your own schedule in coordination with your team. Whether you need a midday break or a specific routine, we trust you to manage your time and deliver results while maintaining your personal well\-being. **Reimbursed private medical care** We care about the health and well\-being of our colleagues. Choose a sports card and dedicated medical care for yourself and your relatives. **Leader’s support** Work with true enthusiasts and professionals who will support you along the way. You can count on leaders and experts who are willing to share their knowledge so that you too can join their ranks someday. **Technology focus** Python and JavaScript are not our only strengths, we are also very good at React Native, IoT, Machine Learning, .Net, DevOps and Blockchain. **Growth review** Junior, Regular or Senior? Every year we have a chance to discuss acquired skills and prepare a development plan for upcoming months. **Events** Attend exciting internal webinars, celebrate special days with us, and join us at conferences and meetups as a listener or speaker! **Workation** Team trips where you have a chance as a team not only to work together, but also integrate f2f. **Apply** Job details #### **WORK MODE** Remote


