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Junior Full-Stack Engineer (Python / React)

Sigma Software · Warsaw, Masovian Voivodeship, Poland · Remote

  • Software & SaaS
  • 1,001–5,000 employees
  • London

Strong hiring record · median 39 days open

100100

Hiring signal

Actively hiring

Still listed on the employer's own board · How we score

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  • Still listed on the employer's own board

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Junior Full-Stack Engineer (Python / React) at Sigma Software. We’ll keep it in your applied jobs, so you can see it later and be warned before applying to the same employer twice.

  • Contribute to the development and maintenance of Back-end and Front-end components of a data-intensive platform
  • Assist in designing and implementing REST APIs and integrations with internal systems
  • Develop and maintain database-related functionality and data processing logic
  • Write and maintain unit and integration tests
  • Participate in code reviews and improve coding practices based on feedback
  • Collaborate with developers, QA engineers, and stakeholders in an Agile environment
  • Participate in sprint planning, backlog grooming, estimations, and other Agile ceremonies
  • Support technical documentation and knowledge-sharing activities
  • Continuously improve technical skills with mentorship from senior engineers
  • 2+ years of professional software development experience with Python
  • Experience working with SQL databases, preferably PostgreSQL
  • Working knowledge of TypeScript and React
  • Understanding of REST APIs and web application architecture
  • Basic understanding of cloud infrastructure and application deployment
  • Familiarity with Kubernetes and containerized applications
  • Basic knowledge of CI/CD practices and tools such as GitLab CI
  • Experience working in Agile development environments
  • Strong problem-solving and communication skills
  • Intermediate or higher English level

WILL BE A PLUS

  • Experience with Next.js
  • Experience with Microsoft Azure, especially AKS
  • Familiarity with MCP and RAG-based systems
  • Mathematical background

PERSONAL PROFILE

  • Eager to learn and develop within a collaborative engineering team
  • Responsible and proactive in daily work
  • Strong attention to detail and code quality
  • Good communication and teamwork skills
  • Open to feedback and continuous improvement

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