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Lingaro Linkedin · Posted 3mo ago

Backend Developer - Freelance

Warsaw, Mazovia, Poland

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Indexed 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.

This job is for Freelance - you will go through the recruitment process normally. We would sign a freelance agreement, and once in place, we could reach out to you whenever a suitable project comes up. At that point, you would always have full flexibility to decide whether you have availability and would like to join. There is no obligation to accept future engagements, and between projects there is no commitment or payment – as is standard in freelance arrangements. We would simply compensate you for the hours worked on active assignments, without the need to sign a new contract each time.

Tasks

  • Design, develop, and maintain backend services using Python.
  • Build and optimize RESTful APIs and microservices.
  • Work with Microsoft Azure (priority) to design, deploy, and manage cloud solutions.

(Experience with GCP is acceptable as an alternative.)

  • Implement CI/CD pipelines and automated testing workflows.
  • Work with Docker and Kubernetes in production environments.
  • Collaborate in an Agile/Scrum team and participate in code reviews, planning, and architecture discussions.

What We're Looking For

  • Strong commercial experience as a Python Backend Developer (mid–senior level).
  • Hands‑on experience with Azure (App Services, Functions, AKS, Storage, etc.).
  • Experience with FastAPI and/or Django.
  • Proven experience designing RESTful APIs and scalable microservice architectures.
  • Solid understanding of CI/CD, automated testing, and deployment pipelines.
  • Proficiency with Docker and Kubernetes in production.
  • Comfortable working in English and collaborating in cross‑functional teams.

Additional Expected Skills

  • Strong knowledge of SQL/NoSQL databases and data modeling.
  • Understanding of cloud architecture patterns, scalability, and performance optimization.
  • Familiarity with unit, integration, and end‑to‑end testing practices.
  • Proficiency with Git and collaborative development workflows.
  • Awareness of security best practices in cloud and backend environments.

What Will Set You Apart

  • Experience with Databricks or other big‑data/data engineering platforms.
  • Commercial experience with Golang.
  • Full‑stack skills, especially with React.
  • Experience with Infrastructure as Code tools (Terraform, Bicep, ARM templates).
  • Knowledge of event‑driven architectures and messaging systems (Kafka, Azure Service Bus, etc.).

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.
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