Fullstack Engineer - Prototyping & AI Integration - CASUS team

Reposted 4 Days Ago
Be an Early Applicant
Bucharest, București
In-Office
Mid level
Information Technology • Software
The Role
Join CASUS as a Fullstack Engineer to design, prototype, and ship AI-powered legal tools. Responsibilities include backend and frontend development, prototyping features, and ensuring code quality.
Summary Generated by Built In
Holycode is looking for a Fullstack Engineer - Prototyping & AI Integration to join our CASUS team. CASUS simplifies legal compliance with AI-powered tools. Their mission is to make complex workflows intuitive and efficient for businesses worldwide.
Intro:
CASUS
 is rebuilding the core tool stack of the legal industry from the ground up.

Lawyers still work in workflows designed decades ago: fragmented tools, manual reviews, static templates, and compliance processes that don’t scale. We think that’s unacceptable in an AI-first world.
Founded in 2019 and based in Zurich, CASUS is a fast-growing team of engineers, legal experts, and designers working at the intersection of LLMs, document intelligence, and real production systems. Our platform helps legal teams draft, review, and analyze contracts faster and more accurately, while meeting strict European compliance and security requirements.

You’ll thrive if you:
  • Love building from 0 to 1 and validating ideas quickly.
  • Have a fullstack skillset, enjoying collaborating across the stack.
  • Are curious about AI integration (e.g., LangChain, Azure LLMs) and want to push boundaries.
  • Prefer startup speed over corporate processes.
This role is ideal for someone who wants to shape a product, work with cutting-edge tech, and see their code in the hands of real users - fast.
Tasks:
  • Prototyping: Rapidly validate new features (e.g., AI agents, Word Add-ins) with POCs
    and iterate based on feedback.
  • AI Integration: Experiment with AI frameworks (LangChain, Azure LLMs) to enhance their
    product’s capabilities.
  • Backend Development: Build and maintain scalable APIs, database schemas
    (Firestore), and cloud services (Google Cloud).
  • Frontend Development: Work on frontend components (React, TypeScript)
  • Testing & QA: Ensure code quality with automated tests and contribute to their CI/CD
    pipelines.
  • Ownership: Take end-to-end responsibility for features, from design to deployment.

Requirements:
  • Essential:
    • 3+ years of Fullstack development with a backend focus (Node.js, TypeScript).
    • Comfortable working with AI-assisted development and evaluating, refining AI-generated code
    • Experience with NoSQL databases (Firestore or similar) and cloud platforms (Google
    • Cloud/Azure).
    • Prototyping skills: Ability to build quick POCs (proof-of-concept) and iterate.
    • Startup mentality: Comfortable with ambiguity and building products from scratch.
    • Collaboration: Enjoy working in cross-functional teams and mentoring others.
       
  • Preferred:
    • Experience with AI agent frameworks (LangChain, etc.) or Office.js (Word Add-ins).
    • Knowledge of legal/Compliance-tech or similar domains.
    • German language skills (not required).
       
  • Soft Skills:
    • Proactive and curious – you love solving problems creatively.
    • User-focused – you care about building products that people actually want to use.
 

What We Offer

  • Impact: Your work will directly shape a product used by thousands of legal professionals.
  • Tech Stack: Modern tools (TypeScript, React, Node.js, Google Cloud, AI APIs).
  • Culture: Flat hierarchies, fast decisions, and a people-first approach.
  • Growth: Opportunities to learn and experiment with AI, scalability, and cutting-edge tech.
  • Healthy employees: We feel good when you feel good. That's why we promote a good work-life balance 
  • Familial working atmosphere in an open-minded multinational team
  • Working remotely (from Romania)
  • All necessary equipment
  • A budget for professional improvement (courses, conferences, books…)
  • A budget for multi benefits platform (meal tickets, private medical insurance, private pension, etc)
  • Premium private medical subscription with nationwide coverage
  • Budget for the mastery of the English and German languages
  • Skilled and senior co-workers

If you are looking for an environment where you can grow professionally, learn from the best in the field, balance work and life habits and have a pleasant and enthusiastic environment, please submit your CV in English.

Top Skills

Azure Llms
Firestore
GCP
Langchain
Node.js
React
Typescript
Am I A Good Fit?
beta
Get Personalized Job Insights.
Our AI-powered fit analysis compares your resume with a job listing so you know if your skills & experience align.

The Company
Zürich
357 Employees
Year Founded: 2014

What We Do

Holycode is a software development and IT nearshoring company, based in Switzerland, Germany, Serbia (Belgrade & Novi Sad) and Romania (Bucharest). We develop cutting-edge projects for Europes fastest growing startups and brands. Our mission is to offer every software solution from the foundation of the company to the IPO and beyond. Some of our in-house specialisations: - IT Nearshoring : Development teams that work exclusively for you full time. Based with us but fully integrated into your company. - Software Projects : End-to-end development of MVPs/POCs as well as complex software projects with our own teams. - ERP Systems : Specifically Microsoft Dynamics/BC & SAP. We cover everything from process analysis to maintenance. We are really amazing in table tennis, table soccer and dart but also in PHP, Java, Ruby on Rails, Python, iOS, Android, JavaScript and co. Our primary goal is to provide great working conditions and a great atmosphere for our team in order to have great results. That’s why we always follow the suggestions and ideas of our employees without whom our company would not be what it is – a place where work becomes fun and the results are amazing!

Similar Jobs

HiBob Logo HiBob

Senior Back-end Engineer

HR Tech • Information Technology • Professional Services • Sales • Software
Remote or Hybrid
România
1350 Employees

CrowdStrike Logo CrowdStrike

Director, Threat Research & Reporting (Remote)

Cloud • Computer Vision • Information Technology • Sales • Security • Cybersecurity
Remote or Hybrid
4 Locations
10000 Employees

CrowdStrike Logo CrowdStrike

Engineering Manager

Cloud • Computer Vision • Information Technology • Sales • Security • Cybersecurity
Hybrid
Bucharest, București, ROU
10000 Employees

CrowdStrike Logo CrowdStrike

Sr. Security Researcher (Remote)

Cloud • Computer Vision • Information Technology • Sales • Security • Cybersecurity
Remote or Hybrid
4 Locations
10000 Employees

Similar Companies Hiring

Scotch Thumbnail
Software • Retail • Payments • Fintech • eCommerce • Artificial Intelligence • Analytics
US
25 Employees
Milestone Systems Thumbnail
Software • Security • Other • Big Data Analytics • Artificial Intelligence • Analytics
Lake Oswego, OR
1500 Employees
Fairly Even Thumbnail
Software • Sales • Robotics • Other • Hospitality • Hardware
New York, NY

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account