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Principal Full Stack Developer (TypeScript) Job Opening In Berlin – Now Hiring Cosuno Ventures GmbH


Job description

Your mission

In this role, you will act as a technical leader, shaping the future of our platform and mentoring the engineers around you.

You'll tackle our most ambiguous and challenging technical problems, ensuring our systems are scalable, reliable, and built for the long term.
Your mission might include:

  • Driving the technical vision and architecture for our core product, working closely with our ML team to integrate new AI features.
  • Leading the design and execution of large-scale technical projects, such as evolving our monorepo strategy or migrating a core service to a new architecture.
  • Mentoring other senior engineers, elevating the team's skills through code reviews, architectural guidance, and establishing best practices.
  • Partnering with product and engineering leadership to identify and de-risk technical challenges in the product roadmap for the next 1-2 years.
How We Build: Our Engineering Culture

We believe in a calm, collaborative, and productive engineering environment.

We trust our engineers and give them the autonomy to do their best work.

Our approach includes:

  • Agile & Fast-Paced: We practice trunk-based development with daily releases to get value into our users' hands quickly.
  • Quality by Default: We maintain a comprehensive Cypress E2E test suite and enforce strict typing, linting, and formatting rules to keep our codebase clean and maintainable.
  • DevOps Mindset: Our well-oiled CI/CD pipeline deploys to AWS via Kubernetes, with our entire infrastructure managed as code using Terraform.
  • Collaboration & Transparency: We value open discussion, constructive code reviews, and a culture where the best idea wins, regardless of who it comes from.

Your profile

We're looking for a seasoned technical leader who is passionate about building great products and great teams.

You'll be a great fit if you have:

  • Extensive experience (typically 10+ years) in software engineering, with a proven track record of architecting and delivering complex, scalable web applications.
  • Deep, system-level expertise in our core technologies (TypeScript, Node.js, React) and the ability to reason about the entire stack, from the database to the browser.
  • A history of leading complex technical projects and making critical architectural decisions.
  • A passion for mentoring and technical leadership.

    You find joy in helping other engineers grow and in elevating the technical bar for the whole team.
  • Excellent communication skills in English, with the ability to articulate complex technical concepts to both technical and non-technical audiences.

Why us?

  • Competitive Compensation: A competitive salary above the market average.
  • Work-Life Balance: Choose to work 100% remotely or from our modern office in Berlin.

    We offer flexible working hours to fit your life.
  • Top-Notch Equipment: A new MacBook Pro to ensure you have the best tools for the job.
  • A Great Team: Regular company off-sites and team events that connect us as people, not just colleagues.
  • Job Security: A permanent contract in a stable, well-funded company.

About us

Cosuno – Revolutionizing construction through technology.
We are Cosuno – a fast-growing tech startup that is making the construction industry more efficient and transparent with our digital platform for tenders and procurement processes.

Our goal: to solve the most complex challenges in the industry with innovation and simplicity.

Why Cosuno?
Artificial intelligence is the key to our solution: it analyzes millions of price data points and helps construction companies create precise and efficient bids.

This not only saves our customers time but also helps them avoid unnecessary costs.
But for us, it's not just about technology – it's about the people who drive it.

At Cosuno, you will work with creative minds who are reshaping the construction industry.

We believe in diversity because we know that the best ideas come from different perspectives.

An integrative and inclusive work environment is a matter of course for us.

Join us – Build the future of construction.

Required Skill Profession

Computer Occupations


  • Job Details

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Unlock Your Principal Full Potential: Insight & Career Growth Guide


Real-time Principal Full Jobs Trends (Graphical Representation)

Explore profound insights with Expertini's real-time, in-depth analysis, showcased through the graph here. Uncover the dynamic job market trends for Principal Full in Berlin, Germany, highlighting market share and opportunities for professionals in Principal Full roles.

2561 Jobs in Germany
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Are You Looking for Principal Full Stack Developer (TypeScript) Job?

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The Work Culture

An organization's rules and standards set how people should be treated in the office and how different situations should be handled. The work culture at Cosuno Ventures GmbH adheres to the cultural norms as outlined by Expertini.

The fundamental ethical values are:

1. Independence

2. Loyalty

3. Impartiapty

4. Integrity

5. Accountabipty

6. Respect for human rights

7. Obeying Germany laws and regulations

What Is the Average Salary Range for Principal Full Stack Developer (TypeScript) Positions?

The average salary range for a varies, but the pay scale is rated "Standard" in Berlin. Salary levels may vary depending on your industry, experience, and skills. It's essential to research and negotiate effectively. We advise reading the full job specification before proceeding with the application to understand the salary package.

What Are the Key Qualifications for Principal Full Stack Developer (TypeScript)?

Key qualifications for Principal Full Stack Developer (TypeScript) typically include Computer Occupations and a list of qualifications and expertise as mentioned in the job specification. The generic skills are mostly outlined by the . Be sure to check the specific job listing for detailed requirements and qualifications.

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Interview Tips for Principal Full Stack Developer (TypeScript) Job Success

Cosuno Ventures GmbH interview tips for Principal Full Stack Developer (TypeScript)

Here are some tips to help you prepare for and ace your Principal Full Stack Developer (TypeScript) job interview:

Before the Interview:

Research: Learn about the Cosuno Ventures GmbH's mission, values, products, and the specific job requirements and get further information about

Other Openings

Practice: Prepare answers to common interview questions and rehearse using the STAR method (Situation, Task, Action, Result) to showcase your skills and experiences.

Dress Professionally: Choose attire appropriate for the company culture.

Prepare Questions: Show your interest by having thoughtful questions for the interviewer.

Plan Your Commute: Allow ample time to arrive on time and avoid feeling rushed.

During the Interview:

Be Punctual: Arrive on time to demonstrate professionalism and respect.

Make a Great First Impression: Greet the interviewer with a handshake, smile, and eye contact.

Confidence and Enthusiasm: Project a positive attitude and show your genuine interest in the opportunity.

Answer Thoughtfully: Listen carefully, take a moment to formulate clear and concise responses. Highlight relevant skills and experiences using the STAR method.

Ask Prepared Questions: Demonstrate curiosity and engagement with the role and company.

Follow Up: Send a thank-you email to the interviewer within 24 hours.

Additional Tips:

Be Yourself: Let your personality shine through while maintaining professionalism.

Be Honest: Don't exaggerate your skills or experience.

Be Positive: Focus on your strengths and accomplishments.

Body Language: Maintain good posture, avoid fidgeting, and make eye contact.

Turn Off Phone: Avoid distractions during the interview.

Final Thought:

To prepare for your Principal Full Stack Developer (TypeScript) interview at Cosuno Ventures GmbH, research the company, understand the job requirements, and practice common interview questions.

Highlight your leadership skills, achievements, and strategic thinking abilities. Be prepared to discuss your experience with HR, including your approach to meeting targets as a team player. Additionally, review the Cosuno Ventures GmbH's products or services and be prepared to discuss how you can contribute to their success.

By following these tips, you can increase your chances of making a positive impression and landing the job!

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