Senior OutSystems Developer (m / f / d)

freelance.ca; Nordrhein-Westfalen; Remote; EUR 60.000 - 80.000; Vollzeit

Zusammenfassung

A freelance service provider is seeking an Interim Senior OutSystems Developer to join a remote project in North Rhine-Westphalia. The role involves maintaining and enhancing OutSystems applications, collaborating with product teams, and executing testing strategies. Candidates should have over 5 years of experience in OutSystems and a solid foundation in software engineering. This position offers a flexible workload of 4-5 days per week for a duration of 6 months.

Qualifikationen

• 5+ years of experience in developing and maintaining OutSystems applications.
• Strong knowledge of OutSystems data modeling and application design.
• Experience with CI/CD integration and platform administration.

Aufgaben

• Maintain and enhance OutSystems applications with prior acceptance criteria.
• Define and execute testing strategies to ensure quality.
• Collaborate with product teams to clarify requirements and deliver solutions.

Kenntnisse

OutSystems expertise

Platform & DevOps knowledge

Testing strategies

Designing REST/SOAP services

Secure coding practices

Software engineering foundation

Collaborative skills

Tools

OutSystems Service Studio

Git

Jobbeschreibung

Currently, we are looking for an Interim Senior OutSystems Developer (m / f / d) for our client.

Start: immediately

Project duration: 6 months

Workload: 4-5 days per week

Location: remote / North Rhine-Westphalia (NRW)

Industry: automotive

Project language: English required, German nice to have

Mission & Core Responsibilities

• Embed with the product team of the customer to maintain and evolve the existing OutSystems low-code platform and applications. You'll own day-to-day stability, performance, and security while delivering enhancements, integrations, and documentation that keep the platform reliable and easy to
• Application stewardship : Maintain and optimize existing OutSystems apps (Reactive / Traditional Web, Mobile), resolve defects, remove technical debt, and keep dependencies current.
• Feature delivery : Analyze requirements, propose solution options, design and implement changes, and present increments to stakeholders.
• Quality engineering : Define and execute test strategies (unit / integration / UI), validation procedures, and release checklists; ensure traceability from requirement to test.
• Platform reliability : Monitor and tune performance, capacity, and error budgets; implement robust logging, alerting, and fallback mechanisms.
• Security & compliance : Implement safeguards against unauthorized use, enforce secure coding practices, and support audits / reviews.
• Integration & data : Design, implement, and document integrations (REST / SOAP, queues), data models, and migration scripts with attention to performance and correctness.
• Documentation : Keep architecture, runbooks, and user-facing guides current; contribute to user manuals and support materials.
• Stakeholder collaboration : Consult with product owners, designers, and engineers to clarify requirements, evaluate tradeoffs, and align on solution boundaries.
• Readiness & demos : Prepare and deliver demonstrations and presentations of completed work to business and technical audiences.
• Operational excellence : Follow our SDLC, quality system procedures, and release management via LifeTime / CI; proactively flag risks, blockers, or scope gaps.

Profil

Deliverables

• Maintained and enhanced OutSystems applications with agreed acceptance criteria met.
• Test assets (unit / integration / UI), validation records, and release notes per change.
• Updated technical documentation (architecture, ADRs, API specs, runbooks).
• Performance / security improvements with measurable impact (e.g., reduced error rates, improved response times, closed vulnerabilities).
• Regular demos and status updates aligned to sprint / release cadence.

Ways of Working

• Team ceremonies : Participate in planning, daily stand-ups, refinements, reviews, and retrospectives.
• Tooling : OutSystems Service Studio / LifeTime; Git-based versioning where applicable; standard issue tracker and CI / CD pipeline.
• Definition of Done : Code complete, peer-reviewed, tested, documented, deployable, and monitored.
• Communication : Clear, proactive updates; early escalation if scope or timelines are at risk.

Qualifications

• OutSystems expertise : 5+ years building and maintaining production systems on OutSystems, including Reactive Web and Traditional Web; strong grasp of data modeling, server actions, aggregates, timers, BPT, and extensions.
• Platform & DevOps : LifeTime management, environment promotion, performance profiling, basic platform admin, and CI / CD integration.
• Testing : Practical test strategies in OutSystems (unit / integration / UI), test data management, and validation procedures.
• Integrations : Designing / consuming REST / SOAP services, authentication / authorization (OAuth2 / OpenID), and error-resilient patterns.
• Security & quality : Secure coding, input validation, secrets handling, audit logging, and compliance-minded delivery.
• Software engineering foundation : Requirements analysis, optioning / tradeoff analysis, algorithmic thinking, and clear technical writing.
• Collaboration : Comfortable consulting with designers on UX, presenting to non-technical stakeholders, and mentoring peers.

Nice to Have

• Experience with performance tuning at scale (caching, pagination strategies, query optimization).
• Familiarity with infrastructure (e.g., containers, cloud fundamentals), monitoring / observability, and SRE concepts.
• Experience contributing to user manuals and training materials.