Senior Full-stack Engineer (Angular, Node.js)

Suitable for a Senior full-stack engineer with at least five years of professional experience and strong expertise in Angular, Node.js, and TypeScript.

The candidate should be skilled in REST APIs, software architecture, clean code, design patterns, Azure or Cosmos DB, CI/CD, containerization, Kubernetes, and AI-assisted development workflows.

They should be familiar with owning features end to end, building scalable applications, developing Playwright tests, reviewing code, troubleshooting issues, and collaborating on technical and architectural decisions.

How would you structure a scalable Node.js and TypeScript REST API for a full-stack product?

I would separate routing, controllers, services, validation, and data-access layers, using dependency injection and clear domain boundaries. I would also define consistent error handling, logging, authentication, request validation, and API versioning.

How do you design Angular applications for maintainability and performance?

I use feature-based modules or standalone components, shared services with clear responsibilities, and strict TypeScript typing. For performance, I apply lazy loading, efficient change detection, observable management, trackBy strategies, and avoid unnecessary component re-renders.

How would you secure and validate a REST API implemented with Node.js?

I would validate all external input using a schema validation library, enforce authentication and authorization, sanitize data, and apply rate limiting and security headers. Secrets should be managed through secure configuration services, and sensitive information must never be exposed in logs or error responses.

What architectural patterns would you apply to keep a full-stack TypeScript system clean and extensible?

I would use separation of concerns, dependency inversion, and domain-oriented boundaries, supported by patterns such as repository, adapter, and strategy where appropriate. The design should remain simple, testable, and focused on business capabilities rather than unnecessary abstractions.

How would you integrate an Angular application with backend services reliably?

I would centralize HTTP communication in typed services, use interceptors for authentication and common error handling, and define consistent API contracts. I would also handle loading, retry, timeout, and user-facing error states explicitly while avoiding unsafe automatic retries for non-idempotent operations.

What considerations are important when using Azure Cosmos DB from a Node.js application?

I would choose a partition key that supports the main access patterns and distributes load evenly, while designing queries to minimize cross-partition operations. I would also monitor request units, use appropriate consistency settings, handle optimistic concurrency, and create indexes based on real query requirements.

How would you build a CI/CD pipeline for an Angular and Node.js application deployed to Kubernetes?

The pipeline should install dependencies reproducibly, run linting, unit tests, build checks, security scans, and Playwright tests before creating versioned container images. Deployment can use Kubernetes manifests or Helm with environment-specific configuration, health probes, rolling updates, and automated rollback capabilities.

How do you create reliable Playwright end-to-end tests?

I use stable user-facing locators, isolated test data, deterministic setup and cleanup, and page objects or reusable fixtures where they improve maintainability. Tests should verify critical business flows without depending on timing, implementation-specific selectors, or shared mutable state.

How would you use AI coding tools throughout the software development lifecycle?

I would use AI for implementation proposals, test generation, documentation, refactoring suggestions, and pull request preparation, while providing precise context and constraints. Every generated change must be reviewed and validated through tests, static analysis, security checks, and manual reasoning before acceptance.

How would you troubleshoot a production issue affecting both the Angular frontend and Node.js backend?

I would first assess impact using logs, metrics, traces, deployment history, and reproducible symptoms, then isolate whether the issue is in the client, API, infrastructure, or data layer. After mitigation, I would add regression coverage, document the root cause, and implement monitoring or process improvements to prevent recurrence.

Innovecs is a global digital services company seeking a Senior Full-stack Engineer to build scalable product features and APIs, create Playwright end-to-end tests, review code, and own delivery from design through production. You’ll work with Angular, Node.js, TypeScript, Azure and/or Cosmos DB, CI/CD, containers, Kubernetes, and AI-assisted development tools. This is a fully remote, Europe-based role with flexible hours and competitive compensation based on experience. Apply for the chance to join an award-winning, remote-first company offering excellent benefits, professional development, modern equipment, and an open, collaborative culture.