Junior/Medior Full-Stack Developer (.NET / React)

YES!Delft Students; Netherlands; Hybrid; EUR 42,000 - 64,000; Full time

Benefits offered by this job

Hybrid work from Delft

Learning budget

30 vacation days

Job summary

Cirrix is an inspection platform that turns scattered visual data into one organized, secure workspace for aviation MRO teams. Cirrix is a Dutch startup scaling its team as it lands projects and grows.

A Junior/Medior Full-Stack Developer will build features end-to-end in a .NET API and a React UI, working with aviation domain experts to deliver real user value. You’ll also explore AI-driven ingestion, search, and vision features while enjoying hybrid work from Delft and a budget for continuous

Qualifications

• Good fundamentals in C#; experience in software development (in any language).
• Knowledge of React and eagerness to learn more.
• Comfortable with git, feature-branch workflows, and CI/CD processes.
• Aviation knowledge is not required; you can learn on the job.
• Eager to learn, pragmatic, opinionated and collaborative.
• Fluent English; Dutch is a plus. Based in the Netherlands; visa sponsorship not available.

Responsibilities

• Build features across the full stack: API in C#, UI in React with GitHub CI/CD.
• Collaborate with aviation domain experts to deliver user-focused features.
• Explore AI-related product areas: document ingestion, search, LLM-backed and vision features.
• Learn and grow fast in a small, experienced team with ownership and responsibility.

Skills

C# fundamentals

React

Git

CI/CD

Team collaboration

English communication

Tools

CI/CD tooling

Job description

Junior/Medior Full-Stack Developer (.NET / React)

Cirrix

Cirrix is an inspection platform that turns scattered visual data (photos, videos, 3D scans, NDT images) into one organized, secure workspace for aviation Maintenance, Repair and Overhaul (MRO) teams. We help operators like airlines and MROs centralize inspection evidence, link it to their existing systems, and unlock faster reporting, traceability, and AI-ready insights. Cirrix is an early-stage Dutch startup. We have already landed our first projects, and we are ready to scale the team!

What we're looking for

A developer who takes pride and ownership of the work, wants to build features end-to-end, and see them used. You've got some professional experience or strong project work behind you, you write clean code, and you'd rather ask a question early than debug an assumption late.

What you'll do

• Build features across the full stack: API in C#, UI in React using GitHub CI/CD.
• Work with our aviation domain experts, so you're never guessing what the user actually needs.
• Work the AI side of the product document ingestion, search, LLM-backed and vision features, earlier than you would at most companies.
• Learn and grow fast, in a small experienced team you get freedom, responsibility and opportunities.

Your profile

• Good fundamentals in C#; experience in software development (in any language). Knowing React, loving to learn more.
• Comfortable with git, feature-branch workflows, will to learn our CI/CD processes.
• Aviation knowledge is not required. You can learn on the job.
• Eager to learn, pragmatic, opinionated and collaborative.
• Comfortable communicating in English (Dutch is a plus).
• Already based in the Netherlands and legally allowed to work here. We cannot provide visa sponsorship.

What we offer

• An important role in an aviation tech startup; you co-build our product.
• Learning from motivated and experienced engineers by working next to them every day.
• Flexibility and freedom (hybrid work from Delft); in return, we look for ownership and commitment.
• Opportunities to visit our clients and see maintenance on aircrafts in the hangars.
• Self-development budget to continue learning.
• Close collaboration with an experienced founding team in software and aviation.
• A small, but mighty team who can't wait to work together.
• Competitive salary, with 30 vacation days.