Full stack-ontwikkelaar

Location

Remote (+/- 3 hours from Amsterdam CET)

Role Summary

We are looking for a Senior Full Stack Engineer. You will be

coding the frontend

of our platform (using React & React Flow) AND

creating complex automation workflows

directly for our customers. You will also work with the backend at times. You need to be technical enough to build the tool, but business-savvy enough to use it to solve customer problems.

Must-Haves

Workflow Logic:

Proven experience creating business automations using tools like

n8n or Zapier . You understand triggers, actions, and logic loops.

API Proficiency:

Deep knowledge of REST APIs, Webhooks, and complex

JSON data transformation .

Customer Facing:

Fluent English with previous experience in a role involving direct client interaction (e.g., Solutions Engineer, Technical Consultant).

Communication:

capable of bridging the gap between technical backend constraints and customer business requirements.

Proficient in C# / .NET:

Our core backend is

.NET 9 .

Dutch

native or professional.

English

native or professional.

High Priority Skills

React Flow:

Our frontend relies heavily on

React Flow . Experience with this specific library (or similar node-based/graph UI libraries) is a massive plus.

Databases:

We use both

PostgreSQL

and

NoSQL . Experience querying both is helpful.

Deployment & Testing:

We use

Docker

for testing and deploy to

AWS Kubernetes (EKS) . Familiarity with containerized workflows is preferred.

Observability:

Experience with the

ELK Stack

(Elasticsearch, Kibana, Logstash) for checking logs and debugging.

AI:

Experience deploying or integrating LLMs.

Hiring Founding Engineer at Kariz

Kariz is building the

infrastructure for the AI-native web . We are building a high-performance

Embedded iPaaS

for companies to automate their work at scale.

We are solving the "Integration Hell" problem for SaaS companies by letting them ship customer-facing integrations in hours, not months.

Why join as our First Engineer?

Ownership:

You aren't maintaining legacy code. You are building a high-scale engine from the ground up, millions of daily executions, complex front-end logic (React Flow), and AI agent orchestration.

Founder Contact:

You’ll work directly with the founders to define the product roadmap. We value

shipping

and trust you to choose the best tool for the job.

Hard Problems:

You’ll be solving complex challenges in distributed systems, secure token management (OAuth), and low-latency workflow execution.

Salary:

Equity based comp (80k+ at next round of funding)

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