Backend Developer (Python, Databricks)

Lingaro; Polska; On-site; PLN 260,000 - 360,000; Full time

Benefits offered by this job

Office as an option

Workation

Udemy platform access

Certificate training programs

Well-being & health programs

Flexible hours

Job summary

Lever, Inc. is seeking a senior Python backend developer to design, build, and maintain scalable services on Microsoft Azure. You will work on distributed systems with Azure Databricks, Unity Catalog, and serverless features, building RESTful APIs and microservices using FastAPI or Django.

You will implement CI/CD, automated testing, and Docker-based deployments in production. Strong English communication and Agile/Scrum collaboration are essential.

Qualifications

• Strong commercial experience in Python backend development at a senior level.
• Hands-on distributed services experience on Microsoft Azure.
• Azure Databricks with Unity Catalog and serverless features.
• Knowledge of Azure cloud services and architecture.
• Experience with FastAPI and/or Django.
• Designing RESTful APIs and microservices.
• CI/CD pipelines, testing and deployment workflows.
• Docker in production environments.
• Celery for async processing and scheduled tasks.

Responsibilities

• Design, develop, and maintain backend services using Python.
• Build and optimize RESTful APIs and microservices.
• Develop software on Microsoft Azure with Azure Databricks.
• Design, deploy, and manage cloud-based Azure solutions.
• Implement CI/CD pipelines and automated tests.
• Work with Docker in production environments.
• Collaborate in Agile/Scrum teams and participate in code reviews.
• Use SQLAlchemy for ORM and data modeling.
• Develop asynchronous/background tasks with Celery.

Skills

Python backend

RESTful APIs & microservices

Azure cloud

Azure Databricks Unity Catalog

FastAPI or Django

Docker in production

SQLAlchemy

Celery

CI/CD

Agile/Scrum

Tools

Azure Databricks

Docker

Git

SQLAlchemy

Celery

FastAPI

Django

Job description

Growth through diversity, equity, and inclusion. As an ethical business, we do what is right — including ensuring equal opportunities and fostering a safe, respectful workplace for each of us. We believe diversity fuels both personal and business growth. We're committed to building an inclusive community where all our people thrive regardless of their backgrounds, identities, or other personal characteristics.

Tasks

• Design, develop, and maintain backend services using Python.
• Build and optimize RESTful APIs and microservices.
• Develop software across distributed services running on Microsoft Azure — Azure experience is a must.
• Work with Azure Databricks, including Unity Catalog and serverless capabilities on Azure — this is a must-have requirement.
• Design, deploy, and manage cloud-based solutions in Microsoft Azure.
• Implement CI/CD pipelines and automated testing workflows.
• Work with Docker in production environments.
• Collaborate in an Agile/Scrum team and participate in code reviews, planning, and architecture discussions.
• Use SQLAlchemy for database access, ORM, and data modeling.
• Develop and maintain asynchronous and scheduled background tasks using Celery.

What we are looking for?

• Strong commercial experience in Python backend development at a senior level.
• Mandatory: hands-on experience developing software across distributed services in Microsoft Azure.
• Mandatory: practical experience with Azure Databricks, including Unity Catalog and serverless capabilities on Azure.
• Mandatory: strong knowledge of Microsoft Azure cloud solutions and services.
• Proven experience with backend frameworks such as FastAPI and/or Django.
• Experience designing and building RESTful APIs and microservices.
• Solid understanding of CI/CD pipelines, automated testing, and deployment workflows.
• Practical experience working with Docker in production environments.
• Practical experience with SQLAlchemy, including ORM, database sessions, queries, and data modeling.
• Experience with Celery for asynchronous processing, background jobs, and scheduled tasks.

Additional Expected Skills

• Strong knowledge of relational databases, preferably Oracle, or very good knowledge of other relational databases.
• Strong knowledge of Microsoft Azure cloud services and architecture.
• Hands-on experience with Azure Databricks, Unity Catalog, and serverless computing on Azure.
• Experience with cloud architecture patterns, scalability, and performance optimization.
• Familiarity with testing practices, including unit, integration, and end-to-end testing.
• Version control proficiency with Git and experience with collaborative development workflows.
• Understanding of security best practices in cloud and backend environments.
• Ability to work in Agile/Scrum teams and communicate effectively in English.
• Kubernetes experience is a plus.

Missing one or two of these qualifications? We still want to hear from you! If you bring a positive mindset, we'll provide an environment where you feel valued and empowered to learn and grow.

What we offer

• Stable employment. On the market since 2008, 1800+ talents currently on board in 7 global sites.
• "Office as an option" model. You can choose to work remotely or in the office.
• Workation. Enjoy working from inspiring locations in line with our workation policy.
• Great Place to Work certified employer.
• Flexibility regarding working hours and your preferred form of contract.
• Comprehensive online onboarding program with a "Buddy" from day 1.
• Cooperation with top-tier engineers and experts.
• Unlimited access to the Udemy learning platform from day 1.
• Certificate training programs. Lingarians earn 500+ technology certificates yearly.
• Upskilling support. Capability development programs, Competency Centers, knowledge sharing sessions, community webinars, 110+ training opportunities yearly.
• Grow as we grow as a company. 76% of our managers are internal promotions.
• A diverse, inclusive, and values-driven community.
• Autonomy to choose the way you work. We trust your ideas.
• Create our community together. Refer your friends to receive bonuses.
• Activities to support your well-being and health.
• Plenty of opportunities to donate to charities and support the environment.
• Modern office equipment. Purchased for you or available to borrow, depending on your location.