Senior Full-Stack Engineer - Platform Architecture & Development

Senior Full-Stack Engineer - Platform Architecture & Development (Angular / , Zürich On-Site)
IR Suite AG is building the operating system for modern investor relations. We enable publicly listed companies to identify, acquire, and engage investors at scale through a unified platform that combines data intelligence, communication, and marketing automation.
We are early, fast-moving, and opinionated about building high-quality software. Our ambition is to become the operating system for IR teams globally.
To get there, we are looking for a highly experienced Senior Full-Stack Engineer who has built and scaled real products, not just features, and wants to take ownership of a modern SaaS platform end-to-end.
This is not a maintenance role. You will help define architecture, make critical technical decisions, and build core systems from the ground up.
This is a 100% on-site role in Zürich. We do not offer remote or hybrid setups.
Your responsibilities
Develop and maintain our web application with Angular and
Build clean, user-friendly frontend interfaces with a strong UI/UX focus
Design and optimize APIs, data flows, and components in our Nx monorepo
Work with PostgreSQL and ensure reliable, performant data access
Integrate external APIs and services (e.g. ad platforms, financial data providers)
Implement and connect AI-based features (e.g. assistants, automation, content generation)
Ensure code quality through testing, reviews, and CI/CD
Collaborate closely with product, design, and QA
Your profile
Several years of experience as a full-stack engineer, ideally in a SaaS or startup environment
Strong skills in Angular (ideally v20 or latest), TypeScript, HTML5, and CSS/SCSS
Experience with Tailwind CSS is a plus
Solid backend experience with , NestJS, and Express
Model and optimize data structures and queries in PostgreSQL and other databases
Familiarity with REST APIs and authentication
Experience with Git, CI/CD, and Docker
Experience with Nx monorepo, AWS, and AI services (e.g. OpenAI API) is a plus
Ensure high engineering standards: testing, code reviews, CI/CD
Independent, structured, hands-on working style with a startup mindset
Team-oriented, proactive, and solution-focused
Fluent English, spoken and written; German is a plus
Our tech stack
Frontend: Angular (v20, latest), TypeScript, Tailwind CSS
Backend: NestJS (), Express
Database: PostgreSQL
Architecture & Tooling: Nx Monorepo, REST APIs
Infrastructure: Docker, AWS
AI & Integrations: OpenAI API and other AI/third-party services
What we offer
The chance to build a core product in an early-stage startup
High level of ownership and direct impact on the product and architecture
Close collaboration with the founders and a small, focused team
Modern on-site workplace in Zürich
Competitive compensation package including ESOP
Interested?
Send us your CV, plus links to your GitHub, portfolio, or projects you’re proud of.
This is a 100% on-site role in Zürich – remote, hybrid, or home office is not possible.
If you’re ready to build something meaningful from the ground up, we’d love to hear from you. jid9afa06aa jit0519a jiy26a