Fullstack Engineer Prototyping & AI Integration CASUS team

Bucharest - Romania

Monthly Salary: Not Disclosed

Posted on: 30+ days ago

Vacancies: 1 Vacancy

Job Summary

Holycode is looking for aFullstack Engineer - Prototyping & AI Integration to join ourCASUSteam. CASUS simplifies legal compliance with AI-powered tools. Their mission is to make complex workflows intuitive and efficient for businesses worldwide.

Intro:
CASUSis 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 dont scale. We think thats 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.

Youll thrive if you:

Love building from 0 to 1 and validating ideas quickly.
Have afullstack skillsetenjoying 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
products 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 ( 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 (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 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. Thats 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.

Required Experience:

Senior IC

Holycode is looking for aFullstack Engineer - Prototyping & AI Integration to join ourCASUSteam. CASUS simplifies legal compliance with AI-powered tools. Their mission is to make complex workflows intuitive and efficient for businesses worldwide.Intro:CASUSis rebuilding the core tool stack of the le...

Youll thrive if you:

Love building from 0 to 1 and validating ideas quickly.
Have afullstack skillsetenjoying 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
products 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 ( 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 (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 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. Thats 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