Permanent
Senior Developer - Outsystems
Som3
Buckinghamshire
Posted: 22 September 2026 (Today)
Closing date: 22 October 2026
Ref: 225635538
Senior Developer - OutSystems
We are looking for an experienced Senior Developer to join a growing development team. This is a hands-on role for someone ready to take ownership of medium to high-complexity development, with a strong focus on architecture, integrations and scalable system design.
Working closely with Technical Leads, Project Managers and cross-functional teams, you''ll help shape technical solutions, maintain high coding standards and deliver secure, performant applications aligned with business requirements.
Key Responsibilities
- Design, develop and maintain applications using OutSystems, including advanced Client & Server Actions, Screens and Aggregates.
- Develop and optimise complex SQL queries and stored procedures using Microsoft SQL Server.
- Deliver medium to high-complexity features and epics with minimal supervision.
- Build and manage integrations using REST APIs, SFTP and Integration Studio.
- Lead and participate in peer code reviews, providing technical guidance and mentoring to other developers.
- Contribute to application architecture, infrastructure and technical improvements.
- Deploy solutions across company infrastructure, following DevOps and change management processes.
- Troubleshoot production issues and lead root cause analysis to deliver long-term solutions.
- Work closely with Technical Leads and Project Managers to ensure successful delivery.
About You
- 3-5 years'' professional software development experience, with significant experience using OutSystems.
- Strong understanding of application and system architecture.
- Experience with REST APIs, SFTP and modern integration technologies.
- Strong Microsoft SQL Server skills, including complex query development and optimisation.
- Understanding of infrastructure, deployments, version control, environments and change management.
- Proven ability to develop secure, scalable and high-performing solutions.
- Experience working within Agile development environments, including estimation and iterative delivery.
- Confident leading code reviews and explaining technical and architectural decisions.
- Strong communication skills and the ability to work effectively with technical and non-technical stakeholders.
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