Full-Stack Web Developer

About the role

ETAP is looking for a Full-Stack Web Developer to design, build, and maintain modern web, cloud, and database applications. You will work with a diverse technology stack and help deliver secure, scalable, and accessible solutions that support the company’s digital transformation in the energy sector.

Key responsibilities

• Develop full‑stack applications using TypeScript, C#, Node.js/Bun/Deno, and .NET Core.
• Create responsive front‑ends with Next.js, Blazor, and SvelteKit, leveraging TanStack Query and React Hook Form with Zod for state management and validation.
• Design, implement, and optimise REST and GraphQL APIs, including HTTP caching and header management.
• Apply security best practices such as OWASP guidelines, CSP, OAuth/OIDC, cookie/session handling, and CORS.
• Build progressive web apps (PWAs) with service workers, offline support, push/background sync, and manifests while targeting Core Web Vitals and WCAG compliance.
• Deploy, scale, and maintain applications on Azure cloud services, using SQL Server and PostgreSQL databases.

Required profile

• Minimum 3 years of professional experience as a web developer.
• Strong proficiency in TypeScript, C#, HTML5, CSS3, and basic Python scripting.
• Hands‑on experience with modern front‑end frameworks (Next.js, Blazor, SvelteKit) and back‑end environments (Node.js.NET Core).
• Solid understanding of API development, cloud deployment (Azure), and relational databases.
• Familiarity with security standards (OWASP, CSP, OAuth/OIDC) and accessibility guidelines.

Required skills

• TypeScript
• C#
• HTML5
• CSS3
• Python (basic)
• Next.js
• Blazor
• SvelteKit
• TanStack Query
• React Hook Form
• Zod
• Node.js
• Bun
• Deno
• .NET Core
• REST
• GraphQL
• Azure
• SQL Server
• PostgreSQL
• OWASP
• CSP
• OAuth/OIDC
• CORS
• PWA development