Senior OutSystems Developer

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