5 beste Stellen als react js in berlin, be – aktuell auf Personalsuche

Senior Backend Engineer
acemate.ai —Berlin
- DevOps
- JavaScript
- Künstliche Intelligenz
Direkt bewerben
Senior Backend Engineer
Talon.One —Berlin
- Wartung
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FinMent GmbH —Berlin
- Englisch
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(Senior) Java Fullstack Developer (m/w/d)
FourEnergy GmbH —Berlin
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Frontend Entwickler React & TypeScript | Berlin hybrid | Finmas (w/m/d)
Finmas GmbH —Berlin
Mit digitalen Ökosystemen und Marktplätzen für Baufinanzierungen und Privatkredite unterstützen wir Sparkassen dabei, ihre Kund:innen entlang der gesamten…
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Full-stack Developer
Topoteretes UG (haftungsbeschränkt) —Berlin
We provide a developer tool for engineers and data scientists to build agentic systems that work in critical workflows – at scale.
70.000 € – 110.000 € pro Jahr
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Senior Backend Engineer

acemate.ai
Berlin

Direkt bewerben

Details zur Stelle

Leistungen

Firmenfahrrad-Leasing
Firmenevents
Kostenfreies oder vergünstigtes Deutschland-Ticket

Qualifikationen

React
DevOps
JavaScript
PostgreSQL
Künstliche Intelligenz
TypeScript
Graphdatenbanken

Vollständige Stellenbeschreibung

acemate is building an AI learning & teaching platform for higher and further education institutions. We have strong traction, secured funding and are entering an exciting growth phase. We're looking for a passionate Senior Backend Engineer / Developer to drive our product forward and help us scale.

About acemate

Founded in 2024, acemate has quickly become the leading AI learning platform for higher and further education, trusted by top-tier institutions across four countries, including University of Cologne, WHU and the German Chambers of Commerce and Industry (IHKs).

Our Mission: Democratizing access to personalized learning. We don’t believe that AI will replace educators. Instead, we empower them to design and deliver personalized learning experiences at scale.
Our Growth: We've raised pre-seed funding and are growing rapidly. While we focus on higher and further education in the DACH area today, we're already expanding into new regions and markets.
Our Culture: We’re a young, driven team passionate about tackling the toughest challenges in education. We embrace builder culture and minimize scheduled meetings for ad-hoc discussions and maximized focus on coding and creating.

Tasks

What You'll Be Doing

As a Backend Engineer on our core team, you'll play a major role in shaping our technical strategy and overall architecture. We are giving you total ownership over the foundational systems powering our product. On any given day, you might be designing database schemas from scratch, building out API responses, or setting up dashboards for observability.

End-to-end system ownership: You build it, you run it. You'll handle the complete engineering lifecycle—from the initial API design and data modeling, all the way to deploying and tracking it in production. A big part of this is continuously improving our core architecture so our Effect & TypeScript codebase remains highly maintainable, type-safe, and rock-solid.
Go beyond simple endpoints: You'll handle the most challenging technical work on our platform. Rather than just hooking up basic CRUD routes, you will design advanced AI pipelines, intricate authorization logic, and complex asynchronous workflows to actually solve hard user problems.

Example projects you might take on:

A bulletproof authorization engine designed to handle complex permission models across various institutional setups using a combination of ABAC and ReBac
Advanced AI pipelines that extract text and visual data from documents via multiple models, mapping the resulting concepts straight into knowledge graphs
Core architecture migration transitioning our backend off a fullstack monolith and onto a strictly type-safe API layer powered by Effect

Tech Stack:

Backend: Effect.ts, Hono, oRPC, Bun, Typescript
Database: PostgreSQL (via Supabase)
Infrastructure: Cloudflare (Workers, Workflows, R2, KV, Hyperdrive), Google Cloud (Gemini, Cloud Run)
Tooling: Axiom, Sentry, PostHog, Langfuse, Stripe
AI: Vercel AI SDK

Don't worry if you aren't familiar with every single tool on this list from day one. We trust you to pick things up quickly and embrace modern frameworks as we grow.

Requirements

What We're Looking For

2+ years of software engineering experience with strong TypeScript skills
Startup experience: You’re comfortable in fast-paced, evolving environments
Balanced AI approach: You knew how to code before Cursor and Claude Code, but understand how to leverage them effectively
Product passion: High identification with our mission to transform education
Bonus: Experience with authz systems, infra/devops, AI, or frontend work (Next.js/React)

Benefits

Benefits

Competitive salary package with equity component
Fully covered Deutschlandticket
BusinessBike (bike or e-bike via leasing, also for private use )
Working in a small but driven team built around performance and learning
Flexible environment with high degree of autonomy
Frequent team events and acemate parties!

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