👨🏻‍💻 postech.work

Senior Full-Stack Developer (f/m/d)

Ruby Berlin HR Consulting • 🌐 In Person

In Person Posted 1 day, 11 hours ago

Job Description

About Us

RSN8 gives marketers a new way to optimize their content for their specific audience without giving up on human creativity. With RSN8, brands can drastically improve the effectiveness of their messaging and measurably increase their revenue (10%+ for an A/B tested campaign), all the while saving on expensive customer surveys. We achieve this by leveraging state-of-the-art AI-models to predict how content resonates with the companies' specific target groups: marketers get immediate and concrete feedback on how to improve their creatives for greater impact. To ensure all of RSN8's models stand on a firm scientific foundation we work with renowned researchers from Harvard and LMU. No more human guesswork, just science-backed insights.

We’re looking for a Senior Full-Stack Developer ready to make an impact, take full ownership and help shape the future of our product. If building cutting-edge technology and driving real-world results excites you, we want you on our team!

Responsibilities

Develop and Enhance the Platform: Implement new features for the customer and improve existing ones based on client needs. Ensure both backend and frontend components are robust and scalable

Feature Ownership: Take full ownership of key projects, including major initiatives like launching the Chrome Extension and shipping new analysis types for different customers

Product Launches \& Integrations: Support product and integration launches, ensuring smooth delivery and high-quality performance

Innovation \& Problem Solving: Contribute ideas to improve the platform, not just execute tasks. Identify new features and improvements that add value for users

Data Integration: Analyze and integrate third-party data to optimize product functionality and user experience

Collaboration: Work closely with the Co-Founder to align on priorities, goals and product vision

Client Insights \& Analysis: Assist in analysing how clients use the platform to inform future improvements and enhancements

What we Offer

Flexible Hybrid Setup

Own a Piece of the Company – VSOPs let you share in our growth

Make a Real Impact – your work will shape our product and business

Work Closely with Leadership – collaborate directly with the team driving our vision

5+ years of professional coding experience with a proven track record of shipping features

Strong background in TypeScript (3+ years)

Confident in React and Express

Experienced in designing implementation strategies for scalable solutions

Familiarity with AI tools

High flexibility and adaptability to changing priorities

Strong problem-solving and analytical skills

High accountability and ownership mentality

Excellent communication and interpersonal skills

English fluency

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