Python Developer - Senior

We are looking for a Senior Application Engineer to design, develop, and support integration services, APIs, middleware, and automation capabilities that enable AI-powered business solutions.

The role will focus on building scalable enterprise integrations, connectors, and services that allow AI agents and business applications to securely interact with internal and external systems.

We are looking for an engineer who goes beyond simply implementing requirements: someone who understands the intended business outcome and the wider system context, identifies assumptions and trade-offs, and can determine when to proceed independently, seek clarification, or challenge a proposed approach.

The ideal candidate combines strong Python software engineering experience with practical expertise in APIs, cloud-native applications, integration patterns, automation, and production systems.

Responsibilities

• Design, develop, test, deploy, and troubleshoot production REST APIs and integration services.
• Build and enhance MCP (Model Context Protocol) connectors and enterprise integration frameworks.
• Develop middleware services connecting AI platforms with enterprise applications and data sources.
• Create automation capabilities that streamline business processes and AI-assisted workflows.
• Collaborate with solution architects, product teams, and business stakeholders to define scalable technical solutions.
• Participate in code reviews, architecture discussions, and technical design sessions.
• Ensure solutions meet security, performance, reliability, scalability, and maintainability standards.
• Contribute to reusable frameworks, libraries, and integration patterns.
• Use AI-assisted development tools such as Codex in day-to-day engineering and review, test, and validate generated code.
• Diagnose and resolve production issues while considering both technical root causes and business impact.

• 5+ years of professional software engineering experience, with strong experience in Python.

• Proven experience designing and delivering production REST APIs.
• Strong understanding of API design principles, authentication, authorization, and enterprise integration patterns.
• Experience building and supporting cloud-native applications and services.
• Understanding of event-driven architectures and service-oriented architectures.
• Hands-on experience with automated testing, CI/CD, code reviews, and production troubleshooting.
• Strong problem-solving and analytical skills.
• Ability to understand the business purpose and wider context behind a technical requirement.
• Ability to identify assumptions, explain technical trade-offs, and propose alternative approaches when appropriate.
• Sound technical judgment to determine when to proceed independently, when to request clarification, and when to challenge a requirement.
• Strong written and verbal communication skills.

Nice to Have

• Experience with MCP (Model Context Protocol) or AI agent integration frameworks.
• Experience building enterprise automation solutions.
• Experience with front-end or UI development.
• Experience with Databricks, cloud platforms, or enterprise AI systems.
• Previous experience working in consulting or complex enterprise environments.
• Experience using AI coding agents such as Codex, Cursor, Claude Code, or similar tools.rn CI/CD workflows and technologies.
• Fluent in English.

At Devsu, we believe in creating an environment where you can thrive both personally and professionally. By joining our team, you’ll enjoy:

• A stable, long-term contract with opportunities for career growth
• A remote-friendly culture that promotes work-life balance
• Continuous training, mentorship, and learning programs to keep you at the forefront of the industry
• Free access to AI training resources and state-of-the-art AI tools to elevate your daily work
• A flexible Paid Time Off (PTO) policy as well as paid holiday days
• Challenging, world-class software projects for clients in the US and LatAm
• Collaboration with some of the most talented software engineers in Latin America and the US, in a diverse work environment

Join Devsu and discover a workplace that values your growth, supports your well-being, and empowers you to make a global impact.