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September 30, 2026

Senior OutSystems Developer

Senior • On-site

2,288,000 - 2,496,000 PLN/yr

Warsaw, Poland

Quick Facts

  • Role: Senior OutSystems Developer

  • Location: Warsaw (hybrid: ~50% in-office)

  • Rate: 1100–1200 PLN net/day (B2B)

Description

You will design, develop, and maintain enterprise business applications built on the OutSystems platform. The role focuses on ensuring system continuity, building secure and high-quality solutions, optimizing existing code, and integrating components using XML and JSON. You will collaborate with UX/UI designers and backend developers to deliver scalable, maintainable web applications.

Responsibilities

  • Design, develop, and maintain OutSystems business applications

  • Ensure continuity of information systems and provide application support

  • Create solutions aligned with business requirements and security standards

  • Collect and refine requirements with designers, business experts, and stakeholders

  • Develop scalable, high-performance, maintainable web applications

  • Optimize existing code and follow software engineering standards

  • Integrate systems/components using XML and JSON

  • Create and execute test, deployment, and environment configuration strategies

  • Maintain technical documentation and participate in knowledge-sharing initiatives

  • Collaborate with UX/UI teams and backend developers to deliver end-to-end solutions

Requirements

  • Minimum 5 years of experience in OutSystems application development

  • OutSystems certification

  • Very good knowledge of the OutSystems platform and the OutSystems UI framework

  • Practical knowledge of JavaScript, HTML, CSS, and PL/SQL

  • Experience with XML and JSON data formats

  • Knowledge of JIRA, Confluence, and SharePoint

  • Experience designing application architecture and documenting technical solutions

  • Knowledge of Agile and Scrum

  • Knowledge of software testing, application security, cybersecurity, and risk management

  • Analytical thinking, problem-solving, and effective communication skills

Benefits

  • Long-term project in an international environment

  • Hybrid work model from Warsaw (about 50% in-office)

  • Opportunity to develop advanced business applications with OutSystems alongside IT and business experts

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