Full-Stack Engineer, Python, React

Sigma Software Group

. Develop and maintain back-end and front-end components of a web-based data-intensive system .

Posted 10/12/2026full-timeRemote • PolandMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in developing and maintaining web-based data-intensive systems, with strong capabilities in Python, SQL, and RESTful API design. Proficient in Agile methodologies and committed to code quality, testing, and continuous improvement.

Highest-signal resume keywords

Python DevelopmentSQL and PostgreSQLRESTful API DesignCI/CD PracticesAgile Methodologies

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

PythonSQLPostgreSQLTypeScriptReactRESTful APIsKubernetesCI/CDNext.jsMicrosoft Azure

Soft Skills

Problem-SolvingAnalytical SkillsCommunicationCollaborationProactive Mindset

Tools & Technologies

GitLab CICloud InfrastructureContainerized EnvironmentsDeployment AutomationMCPRAG-based Systems

Industry Keywords

Software Development LifecycleCode Quality StandardsTesting ApproachesSystem ReliabilityPerformance Optimization

Tech Stack

Tools & technologies

AzureCloudJavaScriptKubernetesNext.jsPostgresPythonReactSQLTypeScript

About the role

Key responsibilities & impact

Develop and maintain back-end and front-end components of a web-based data-intensive system
Design, implement, and support REST APIs and integrations with internal platforms and services
Build and maintain scalable applications and database solutions
Write clean, maintainable, and testable code following engineering best practices
Create and maintain unit, integration, and end-to-end tests
Participate in code reviews and contribute to technical documentation
Collaborate with stakeholders, engineers, and product teams during regular meetings and planning sessions
Participate in Agile ceremonies including estimation, backlog grooming, sprint planning, and retrospectives
Contribute to system reliability, deployment automation, and performance optimization activities
Participate in the full software development lifecycle, including architecture discussions, implementation, testing, deployment, and continuous improvement

Requirements

What you’ll need

3+ years of professional software development experience with Python
Strong experience with SQL and PostgreSQL
Working knowledge of TypeScript and React
Experience building and maintaining RESTful APIs
Understanding of cloud infrastructure and modern application deployment approaches
Familiarity with Kubernetes and containerized environments
Experience with CI/CD practices and related tools such as GitLab CI
Understanding of software development best practices, testing approaches, and code quality standards
Upper-Intermediate English level
Experience with Next.js (a plus)
Experience with Microsoft Azure, especially AKS (a plus)
Familiarity with MCP and RAG-based systems (a plus)
Strong problem-solving and analytical skills
Ability to work independently and collaboratively within distributed teams
Good communication and stakeholder interaction skills
Proactive mindset with attention to quality and maintainability
Willingness to contribute to technical discussions and continuous improvement initiatives

Benefits

Comp & perks

Employees can work remotely