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Overview
Senior

Senior Fullstack Engineer

Confirmed live in the last 24 hours

Scaler

Scaler

Amsterdam (Hybrid)
Hybrid
Posted March 31, 2026

Job Description

About Us

Scaler is a sustainability data platform built for the real estate industry. We give real estate managers and investors the data they need to protect asset value, meet reporting obligations, and reduce long-term risk.

The role

We're looking for a senior fullstack engineer that will implement new products and features end to end. You'll design and build across the full stack, work closely with product and design to turn complex data into tools clients use daily, and contribute to the code review standards and architecture decisions that keep the codebase healthy as the team grows. This is a role for someone who wants to shape how the product develops, not just execute a backlog.

What you'll do

  • Design and ship full-stack features across a data-intensive platform used by real estate investment teams

  • Build and maintain features that put LLMs to work in production, including RAG pipelines, LLM integrations, guardrails, and evaluation frameworks

  • Lead architectural decisions for backend systems built to handle continued growth in data volume and client load

  • Set engineering standards across code reviews, testing, monitoring, and observability

What you'll bring

  • Minimum 6 years of fullstack engineering experience with a track record of shipping production systems

  • Deep experience in Python and JavaScript/TypeScript with strong command of CSS

  • Production experience with LLM integration, including prompt engineering, RAG pipelines, function calling, evals, or guardrails

  • Experience with one or more: FastAPI, Laravel, Vue.js, Tailwind CSS, ECharts

  • Proven ability to work with large, complex datasets and build systems that surface them clearly

  • Experience with web metrics, monitoring, and observability tooling

  • Strong fundamentals in data structures and algorithms, applied to real engineering constraints

  • Works well in a small, fast-moving team and owns outcomes, not just tickets

Our tech stack

  • Front-end: Vue.js, Pinia, Vite, Tailwind CSS, ECharts

  • Back-end: Laravel, Python, FastAPI

  • Infrastructure: AWS, Kafka, Redis, Postgres, Nginx, Envoyer, Docker

Tools: Sentry, Linear, GitHub, Notion

Benefits

  • 25 paid vacation days per year

  • Equity package giving you real ownership in the company and alignment with our long-term growth

  • We offer a hybrid work policy: 2 days working from home and 3 days in-office each week

  • Four months parental leave

  • Annual personal development budget

Why Scaler?

When you join Scaler, you will collaborate with a team of curious, sharp, supportive, and genuinely enthusiastic individuals about Scaler's product and unique value. Our people are  committed to making a positive impact on our customers' journey to achieving absolute zero carbon.

At Scaler, we’re committed to building a workplace where everyone belongs. Employment opportunities are open to all, regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, veteran status, or any other characteristic protected by law

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