Senior Python Engineer

JOIN OUR PYTHON DEVELOPMENT TEAM @ LEVI9 IASI

At Levi9 we are passionate about what we do. We love our work and together in a team, we are smarter and stronger. We are looking for skilled team players who make change happen. Are you one of these players? Join the magic number at levi9.ro.

PROJECT DESCRIPTION:

As far as projects go, from fintech to transport solutions, we work together with the world's top companies.

You will join a skilled engineering community focused on building reliable, scalable, and maintainable solutions, while collaborating closely with colleagues and customer teams.

There is no bigger prize than a customer leading his market thanks to our solutions.

THE ROLE INVOLVES:

• Design, develop, and maintain high-quality backend applications and services using Python and its ecosystem.

• Build scalable, secure, and high-performance systems, including APIs, microservices, distributed applications, and data-intensive services.

• Collaborate with cross-functional teams to understand business needs and translate them into robust technical solutions.

• Contribute to technical design and architecture decisions, with a focus on maintainability, security, and long-term value.

• Write clean, testable code and contribute to automated testing, code reviews, and engineering quality practices.

• Troubleshoot and optimize applications and production systems for reliability, availability, and performance.

• Share knowledge, mentor colleagues, and support the professional growth of other engineers.

• Contribute to continuous improvement by promoting engineering standards, automation, and effective delivery practices.

• Use AI-assisted engineering practices where appropriate to support design, implementation, debugging, code review, testing, documentation, research, and task breakdown.

• Critically review and validate solutions, including AI-generated output, against requirements, edge cases, security standards, and engineering best practices, while maintaining ownership of the final result.

TECHNICAL REQUIREMENTS:

• 5+ years of professional software engineering experience, with a strong focus on Python and backend development.

• Strong proficiency in Python and solid knowledge of its ecosystem, including dependency management, packaging, common development practices and specific frameworks such as FastAPI, Django, or Flask.

• Experience designing and developing RESTful APIs, microservices, or distributed systems.

• Experience with asynchronous programming, event-driven systems, or background processing.

• Experience with SQL and relational databases; exposure to NoSQL technologies is an advantage.

• Experience with automated testing tools together with a strong focus on code quality, maintainability, and performance.

• Hands-on experience with Git and modern collaborative software development practices.

• Practical experience with at least one major cloud platform, preferably AWS or Azure, including working with cloud-based services, application deployments, and production environments.

• Hands-on experience with Infrastructure as Code, using tools such as Terraform, AWS CDK, CloudFormation, or Azure Bicep.

• Experience with CI/CD pipelines and containerized applications using Docker.

• Practical experience using AI-powered development tools in software engineering workflows, together with the judgment to apply them responsibly and effectively.

NICE TO HAVE:

• Experience with Kafka, messaging systems, or event-driven architectures.

• Experience with Kubernetes, Helm, or other container orchestration technologies.

• Experience with data processing libraries or platforms and building data-intensive applications.

• Experience with Elasticsearch, Elastic Stack, or similar search and analytics technologies.

• Experience supporting or optimizing production systems for high availability and performance.

• Experience integrating AI or machine learning capabilities into software products or internal engineering solutions.

• Relevant cloud or Python certifications and contributions to technical communities or open-source projects.

SOFT SKILLS:

• Fluent English, with good written and verbal communication skills.

• Strong problem-solving and troubleshooting skills.

• Collaborative mindset and the ability to work effectively with colleagues and customer teams.

• Proactive, result-driven, and comfortable taking ownership.

• Open to giving and receiving constructive feedback.

• Curious and willing to learn and adapt across different technologies, domains, and project contexts, including emerging tools and AI-assisted ways of working.

WHAT WE HOPE YOU MIGHT ENJOY:

• Great colleagues, tech, and fun-oriented place to work

• Personal and technical development through courses, training, conferences, and certifications under the Levi9 Academy umbrella

• Udemy for business

• A good book with Bookster

• Parenting sessions if needed

• Team buildings (with the company, your project, or your department)

• Fun activities with colleagues sharing your passion (Ex: CSR campaigns, Movie Nights, Football, etc.)

• 21 annual vacation days + 1 extra day every two years

• Floating holidays

• Meal tickets

• Medical subscription

• Vacation bonus

• Hybrid way of working

• Unlimited access to Levi9 gym