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Senior Full Stack Engineer
CHF 80’000 - 120’000 ❖
ComplexChaos
Paulstrasse 2, Zurich
CHF 80’000 - 120’000 ❖
Requirements
Must:
The Role: Senior Full Stack Engineer
This is a build-it-and-ship-it role for someone who loves solving real problems with real code. You'll be deep in our stack from day one—building features that users actually want, squashing bugs that matter, and helping us migrate from 'startup prototype' to 'scale-up ready platform' without losing our velocity. You'll work directly with our Principal Engineer and founding team, contributing to both frontend experiences and backend systems that need to handle real AI workloads. And yes, you need to be in Zurich. We're building this together, in person, some days per week.
What We're Looking For
5-8 years of full-stack engineering experience with battle scars from shipping real products
Modern web stack fluency: You're comfortable with TypeScript, Node.js, React, PostgreSQL, AWS, and can pick up new tools fast
AI/LLM integration experience: You've built features with OpenAI APIs, handled embeddings, or worked with voice processing—bonus points if you've debugged why GPT-4 suddenly started giving weird responses
Microservices mindset: You understand service boundaries, API design, event-driven architectures, and why everything shouldn't be in one giant database
Startup survival skills: You've worked in fast-moving environments where priorities shift, requirements evolve, and 'MVP' actually means something
Zurich-based: We believe the best work happens when smart people can actually talk to each other
Quality-focused: You write tests, handle errors gracefully, and think about edge cases before they become production incidents
Responsibilities
What You'll Actually Do
Ship full-stack features across our evolving tech stack: TypeScript/Node.js backends, Vue → Next.js frontend migration, Python AI services, and everything in between
Build AI-powered experiences that don't suck—chat interfaces, voice processing, insight generation
Own end-to-end features from database design to user interactions, because nothing beats understanding the whole flow
Navigate our platform migration from monolith to microservices while keeping everything running
Write code that scales with proper error handling, monitoring, and tests - because 'it works on my machine' doesn't cut it with enterprise clients
Collaborate intensely with founders, designers, and other engineers to ship features that solve actual user problems
Why You'll Like It Here
Real impact: Your code will help executives make better decisions and reduce organizational chaos (seriously)
Modern stack: We're not maintaining legacy PHP from 2010—you'll work with current tech and migrate to even better tech
Smart teammates: Work with engineers who care about craft and founders who are still hands on
Growth trajectory: As we scale from prototype to platform, you'll own increasingly complex systems and mentor junior engineers
No BS meetings: Most of your day is spent coding
ComplexChaos is an equal opportunity adventure.
We care more about how you code than where you learned to code. If you want to build AI-powered tools that actually solve real business problems—with a team that ships fast and laughs often—come talk to us.
Ready to help us turn organizational chaos into clarity? Send us your GitHub and tell us about the messiest technical challenge you've solved.
Description
About Us At ComplexChaos, we’re building the first AI-native platform for navigating complex, high-stakes decisions across multiple stakeholders. Think: “how do we get our sustainability strategy aligned across 47 execs, 12 regions, and one grumpy board chair”—but without the consultants and chaos. We're a pre-seed startup backed by Village Global (yes, the one chaired by Reid Hoffman and backed by Bezos, Gates, et al.) and angels including founders from WhatsApp, Mural, Pactum AI, and execs from Google, OpenGov, Visa, VMWare, and more. We’re early, we’re moving fast, and we’re building something people actually need.
Benefits
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You can find JavaScript Developer salaries in Switzerland here.
How many JavaScript Developer jobs are in Switzerland?
Currently, there are 260 JavaScript openings. Check also: React jobs, Angular jobs, Vue jobs, TypeScript jobs, NodeJS jobs - all with salary brackets.
Is Switzerland a good place for JavaScript Developers?
Switzerland is one of the best countries to work as a JavaScript Engineer. It has a vibrant startup community, growing tech hubs and, most important: lots of interesting jobs for people who work in tech.
Which companies are hiring for JavaScript Developer jobs in Switzerland?
ComplexChaos, Finfox, IMT AG, healthinal, ZĂĽrcher Kantonalbank, Kaleidodoc, EveryWare AG among others, are currently hiring for JavaScript roles in Switzerland.
The company with most openings is Rockstar Recruiting AG as they are hiring for 27 different JavaScript Developer jobs in Switzerland. They are probably quite committed to find good JavaScript Developers.
The company with most openings is Rockstar Recruiting AG as they are hiring for 27 different JavaScript Developer jobs in Switzerland. They are probably quite committed to find good JavaScript Developers.