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Sigma Software

Global software development and IT consulting

Junior Full-Stack Engineer - Python / React

Full-Stack EngineeringConfirmed live in the last 24 hours
Full-timeWarsaw, PolandNo salary listedRemote

About the Job

Requirements

  • At least 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.
  • Intermediate or higher English proficiency.
  • Strong problem-solving and communication skills.

Responsibilities

  • 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.

Desired Qualifications

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

About the Company

Sigma Software

Global software development and IT consulting

Sigma Software provides software development services and IT consulting to more than 170 clients worldwide. It builds large-scale software solutions and guides startups from concept to a ready product, across industries such as banking, automotive, advertising, telecommunications, cybersecurity, gaming, aviation, real estate, and healthcare. The company works by deploying teams of skilled engineers and consultants, delivering projects through global delivery centers and emphasizing clear communication, flexibility, and alignment with clients’ business goals. Sigma Software differentiates itself with recognition as a top outsourcing firm (IAOP World’s Top 100 Outsourcing), a wide geographic footprint, and the ability to take projects from idea through production for both established enterprises and startups. Its goal is to help clients achieve their business objectives by delivering reliable software products and expert IT advice on time and within scope.

Company size
1,001-5,000
Company stage
Not listed
Total funding
Not listed
Headquarters
Stockholms kommun, Sweden
Founded
2002

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