Mobile Full Stack Python Developer Jobs in St Louis, MO

Job Summary:
ArchKey Solutions is one of the nation’s largest privately held specialty trade installation and integrated facility service companies. The Senior Python Developer is responsible for designing, developing, and maintaining complex Python applications and systems while providing technical leadership and mentoring to team members.
Responsibilities:
• Designs, develops and maintains Python applications
• Is a Full-Life Cycle Python Developer
• Is able to provide Technical and Design Leadership
• Designs, develops, and maintains scalable Python applications, APIs, and microservices using best practices and modern design patterns.
• Establishes and maintains enterprise-level Python development standards and enforces coding conventions.
• Provides architectural leadership, guiding system design and technology selection.
• Translates Business Requirements Documentation (BRD) into technical specifications and solution designs.
• Provides accurate level-of-effort estimates and contribute to project planning and roadmap discussions.
• Drives successful project delivery on time and within budget while maintaining high-quality standards.
• Writes clean, efficient, well-documented, and maintainable code.
• Conducts thorough code reviews to ensure quality, performance, security, and adherence to standards.
• Designs and implements RESTful APIs with appropriate authentication, versioning, validation, and error handling.
• Implements automated testing strategies, including unit, integration, and end-to-end tests.
• Builds and maintains CI/CD pipelines to support reliable and efficient deployments.
• Optimizes application performance and troubleshoots complex production issues.
• Ensures adherence to security best practices, data protection regulations, and secures coding standards.
• Collaborates with cross-functional teams to deliver effective technical solutions.
• Mentors and supports developers to strengthen team capabilities and technical excellence.
• Promotes continuous improvement in development processes, tools, and team practices.
• Contributes to documentation, knowledge sharing, and technical best practices across the organization.
• Consistently makes decisions in an attentive and safe manner to ensure the safety and health of self and others.
• Utilizes LEAN concepts or other continuous improvement methodologies to ensure the most efficient operations, processes, and activities.
• Promotes and models the Company mission, vision and values through exercising sound and ethical business practices, championing all elements of diversity, equity, and inclusion (DEI) and providing high quality services and programs as they relate to clients, subcontractors, co-workers, suppliers, and the public.
Qualifications:
Required:
• Bachelor’s degree in Computer Science, Software Engineering, Information Systems, or a related field; or equivalent professional experience.
• 5-7 years of professional software development experience.
• 3+ years of hands-on Python development experience in production environments.
• Proven experience designing and implementing RESTful APIs and microservices architectures.
• Experience working in Agile environments (Scrum or Kanban).
• Expert-level proficiency in Python 3.x, including deep knowledge of language features, best practices, and design patterns.
• Strong experience with Python web frameworks (Django, Flask, FastAPI, or similar).
• Experience with relational databases (PostgreSQL, MySQL, SQL Server) and NoSQL databases (MongoDB, Redis).
• Experience with Git-based workflows and CI/CD tools (GitHub Actions, Jenkins, or similar).
• Hands-on experience with containerization (Docker) and orchestration platforms (Kubernetes).
• Experience with cloud platforms (AWS, Azure, or GCP) and cloud-native development practices.
• Knowledge of asynchronous programming, event-driven architectures, and message queues.
• Strong experience with testing frameworks (pytest, unittest) and test-driven development (TDD).
• Familiarity with performance optimization, profiling, and scalability strategies.
• Strong analytical and problem-solving abilities with attention to detail.
• Excellent written and verbal communication skills.
• Demonstrated leadership and mentorship experience.
• Ability to work independently and collaboratively in a team environment.
• Strong organizational skills with the ability to manage multiple priorities in a deadline-driven setting.
Preferred:
• Experience with data engineering tools and ETL processes preferred.
• Familiarity with machine learning frameworks (TensorFlow, PyTorch, scikit-learn) is a plus.
• Experience with front-end technologies (React, Vue.js, JavaScript) is desirable.
• Knowledge of application security testing and secure architecture principles is helpful.
• Contributions to open-source projects or technical publications is a plus.
• Relevant certifications (e.g., AWS Certified Developer, Python certifications) preferred.
Company:
ArchKey Solutions is an electrical and technology construction firm. Founded in 2018, the company is headquartered in Fenton, USA, with a team of 1001-5000 employees. The company is currently Late Stage.