OutSystems Developer

OutSystems Developer

Posted 4 days ago by Avance Consulting

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Negotiable
Inside
Hybrid
London Area, United Kingdom
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Agile Methodology API Management Application Design Application Development Application Programming Interface (API) Application Security Automation Business Process Cascading Style Sheets (CSS) Constituent Relationship Management Continuous Integration and Continuous Delivery Customer Relationship Management (CRM) Software Datamodel Data Modeling DevOps File Servers Financial Information eXchange (FIX) Protocol Integration Testing JavaScript (Programming Language) Management Microservices Mobile App Mobile Application Development Mobile Devices OAuth OutSystems Performance Tuning Relational Databases SAP Applications Software Development SQL (Programming Language) Ui Patterns User Interface Workflows

Summary: The OutSystems Developer role involves creating scalable and secure low-code applications using the OutSystems platform, integrating business processes with application design. The position requires expertise in application development, API management, and DevOps practices to deliver enterprise-grade solutions. The developer will work collaboratively with cross-functional teams to ensure adherence to best practices and performance guidelines. This contract position is based in London and classified as inside IR35.

Key Responsibilities:

  • Build responsive web and mobile applications using OutSystems Service Studio.
  • Design workflow orchestrations, process automation, and data models.
  • Develop logic, integrations, and reusable UI patterns and modules.
  • Implement role-based access, security configurations, and performance optimisations.
  • Integrate with backend systems (REST/SOAP APIs, databases, SAP, CRM).
  • Build and maintain integrations ensuring reliability and security.
  • Design asynchronous flows, event-driven architectures, and external data connectors.
  • Conduct unit and integration testing.
  • Troubleshoot performance issues and fix defects across environments.
  • Support deployments using LifeTime, CICD pipelines, and environment promotions.
  • Work with cross functional teams on release planning and hypercare.
  • Document architecture, modules, APIs, and change logs.
  • Ensure adherence to OutSystems development standards and performance guidelines.
  • Participate in code reviews, architecture discussions, and solution workshops.

Key Skills:

  • 2–5 years of experience in OutSystems development (Traditional or Reactive Web / Mobile).
  • Strong understanding of low-code application architecture and lifecycle.
  • Experience with integrations (REST, SOAP, OAuth, SQL, message queues).
  • Basic understanding of CSS, JavaScript, and relational databases (SQL Server, Oracle).
  • Knowledge of application security, performance tuning, and scalable app design.
  • OutSystems certifications (Associate, Professional, Tech Lead) - Good to Have.
  • Knowledge of cloud-native deployments and microservices patterns - Good to Have.
  • Experience in Agile / DevOps and CI/CD integration for OutSystems - Good to Have.

Salary (Rate): undetermined

City: London

Country: United Kingdom

Working Arrangements: hybrid

IR35 Status: inside IR35

Seniority Level: undetermined

Industry: IT

Detailed Description From Employer:

Job Title : OutSystems Developer

Job Location : London, UK (Hybrid)

Job Type : Contract Inside IR35 Job

Job Description

Role Overview

The OutSystems Developer focuses on building scalable, secure, low code applications and workflow orchestrations using the OutSystems platform. The role blends business process understanding with application design, integrations, and front end/back end logic to deliver enterprise-grade solutions.

Key Responsibilities

  • Application & Workflow Development
    • Build responsive web and mobile applications using OutSystems Service Studio.
    • Design workflow orchestrations, process automation, and data models.
    • Develop logic, integrations, and reusable UI patterns and modules.
    • Implement role-based access, security configurations, and performance optimisations.
  • Integration & API Management
    • Integrate with backend systems (REST/SOAP APIs, databases, SAP, CRM).
    • Build and maintain integrations ensuring reliability and security.
    • Design asynchronous flows, event-driven architectures, and external data connectors.
  • Testing, Deployment & DevOps
    • Conduct unit and integration testing.
    • Troubleshoot performance issues and fix defects across environments.
    • Support deployments using LifeTime, CICD pipelines, and environment promotions.
    • Work with cross functional teams on release planning and hypercare.
  • Governance, Documentation & Best Practices
    • Document architecture, modules, APIs, and change logs.
    • Ensure adherence to OutSystems development standards and performance guidelines.
    • Participate in code reviews, architecture discussions, and solution workshops.

Required Skills & Experience

  • 2–5 years of experience in OutSystems development (Traditional or Reactive Web / Mobile).
  • Strong understanding of low-code application architecture and lifecycle.
  • Experience with integrations (REST, SOAP, OAuth, SQL, message queues).
  • Basic understanding of CSS, JavaScript, and relational databases (SQL Server, Oracle).
  • Knowledge of application security, performance tuning, and scalable app design.

Good to Have

  • OutSystems certifications (Associate, Professional, Tech Lead).
  • Knowledge of cloud-native deployments and microservices patterns.
  • Experience in Agile / DevOps and CI/CD integration for OutSystems.
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