Job description
Last date to apply: We are continuously accepting applications .
About the Role
We are looking for a Senior Out. Systems Developer who can design and build end-to-end applications—from data models and backend logic to user experience and integrations. This role requires someone who can own the complete application lifecycle, including backend services, business logic, integrations, and frontend delivery using the Out. Systems platform.
Key Responsibilities
End-to-End Application Development Design and develop full-stack applications on Out. Systems, including: Data models and database design Backend logic (server actions, business workflows) Frontend (Reactive Web / Mobile) Integrations with external systems Build modular, reusable components across layers Ensure clean separation between UI, business logic, and data layers Backend & System Design Design robust backend architectures within Out.
Systems: Server-side logic and orchestration Complex business workflows and validations Async processing (timers, queues, event-driven patterns) Implement and expose REST/SOAP APIs Integrate with external services (payment gateways, ERPs, CRMs, third-party APIs) Handle authentication, authorization, and security best practices Architecture & Scalability Architect applications for performance, scalability, and maintainability Define patterns for: Multi-module architecture Reusability and shared libraries Environment strategy (Dev, QA, Prod) Identify and mitigate platform limitations with sound design decisions Data & Performance Design efficient data models and queries Optimize performance across: Database queries API calls Frontend rendering Handle large datasets, caching strategies, and data lifecycle management DevOps & Lifecycle Manage application lifecycle in Out.
Systems: Versioning, deployments, and environment management Set up and manage CI/CD pipelines Monitor applications and troubleshoot production issues Leadership & Collaboration Lead technical discussions and solution design Mentor developers on full-stack thinking within Out. Systems Work closely with product and business teams to translate requirements into scalable solutions Required Skills & Experience 5–10 years of overall software development experience 3+ years of strong hands-on experience with Out.
Systems Location Mumbai Proven experience in building end-to-end applications (frontend + backend + integrations) Strong understanding of: Backend development concepts (APIs, async processing, workflows) Database design and data modeling System integration patterns Experience with performance tuning and debugging Preferred Qualifications Out.
Systems certifications (Associate / Professional / Architect) Experience building enterprise-grade applications from scratch Knowledge of: Microservices architecture Event-driven systems Familiarity with JavaScript, HTML, CSS for UI customization Exposure to cloud platforms (AWS, Azure, GCP) What We’re Looking For A true full-stack builder within Out.
Systems, not just a UI developer Someone who can own backend complexity and integrations Strong architectural thinking with a pragmatic approach Comfortable building in a 0→1 environment Nice to Have Experience setting up backend-heavy workflows Experience integrating multiple external systems in a single application Exposure to governance and platform best practices