Senior Fullstack Developer with Backend Focus (m/f/d)

Description

Job Overview

• Role: Senior Fullstack Developer with Backend Focus (m/f/d)
• Company: KIWI.KI GmbH
• Location: Berlin
• Employment Type: professional / experienced
• Category / Department: Remote, Software Development
• Salary: Competitive / Not Disclosed — confirm during interview
• Key Skills / Technologies: Remote, Software Development
• Listing Source: Arbeitnow

Job Description

Our engineering team is a mix of cross-functional engineers, covering the full range from systems, mobile, web/front-end and back-end through hardware and firmware development. Our highest priority is to safeguard the privacy and security of our users while maintaining reliability of our service. Should you have experience in Digital Access, PropTech, IoT, or FinTech you most likely already laid the foundation for navigating through your workday and tasks at KIWI.

We are now looking for a Senior Fullstack Engineer (m/f/d) starting asap for 40 hours / week with a few years of experience in backend development using Python and web frontend development with React. You’ll join us at a inflection point where we are evolving our business and our software architecture for large scale operations. You will be responsible for the design and development of our core product, from the web portal to backend systems. You will also help evolve the overall architecture of the application and continuously work to ensure maximum performance, usability and stability.

Tasks

• Backend development in Python on KIWI's own digital access control system
• Web frontend development in React
• Contribute to KIWI's overall software architecture and design
• Close cooperation with KIWI product management in defining requirements and turning user’s needs into a working product
• Optimization of the application for maximum speed and scalability
• Coordination with and support of adjacent engineering disciplines, namely embedded development, mobile app development, and DevOps
• Support and code reviews for your fellow software development teammate
• Occasional support of our customer success team

Requirements

• Relevant professional experience of at least 4 years
• English proficiency at least at B2 level, German is desirable
• Residence in Germany already exists
• Understanding of fundamental design principles and software architectural concepts behind scalable, reliable, and offline-capable software systems and applications
• Proficient in Python as our back-end programming language
• Solid knowledge of React for frontend development
• Experienced in using git
• Good understanding of PostgreSQL
• Familiarity with container-based systems (Docker, Kubernetes)
• Interest in and understanding of design principles that enable automated testing/unit test
• Interest in embedded systems, smart building, Internet of Things (IoT)

Benefits

• A very positive company culture characterized by team spirit, fun, support and passion
• A high level of autonomy and strong team support
• Tackle challenging and diverse issues
• Home-office and a stylish office in the heart of Berlin
• Flexible working hours and the possibility of "workations" for a better work-life balance
• The opportunity to quickly take on responsibility and actively implement your ideas
• Laptop and mobile phone provided
• 28 working days of vacation, plus Christmas Eve and New Year's Eve as a gift from us
• Annual training budget
• Dog-friendly office

"We choose to be inclusive and love our diverse natures, whether it's our origin, gender, sexual identity or our belief. Uniqueness is powerful."

In line with our values, incoming applications are evaluated solely based on professional qualifications, without regard to ethnic and social origin, religion or worldview, gender, sexual orientation, disability, or age.

Find more English Speaking Jobs in Germany on Arbeitnow

Salary & Compensation

The salary for this position has not been publicly disclosed. Compensation is typically determined based on your experience, skills, and interview performance. Use your research on industry benchmarks and the cost of living in the role's location to negotiate effectively.

In addition to base salary, many employers in this sector offer a comprehensive benefits package that may include:

• Annual or performance-based bonuses
• Health, dental, and vision insurance
• Provident Fund (PF) and Gratuity contributions (India)
• Paid Time Off (PTO), sick leave, and public holidays
• Professional development budget and learning allowances
• Stock options or Employee Stock Ownership Plans (ESOPs) at select companies
• Flexible or remote working allowances
• Parental leave and family health coverage

Note: The specific benefits offered by this employer should be confirmed during the offer stage. Not all benefits listed above may apply to every organisation or role type.

Work Arrangement

Type: On-Site / Full-Time

This is an on-site, full-time position. You will be expected to report to the office or designated work location during standard business hours, Monday through Friday. Some companies offer flexible start and end times or occasional work-from-home days at the manager's discretion. The company fosters a collaborative environment with open workspaces, dedicated meeting rooms, and structured team events.

Typical Interview Process

While each organisation structures its hiring differently, candidates for this type of role typically go through the following stages:

1. Resume / Application screening by the recruiting team
2. Technical phone or video screening (30–45 min) covering fundamentals
3. Take-home coding assignment or technical assessment
4. Two to three rounds of technical interviews (algorithms, system design, or domain knowledge)
5. Behavioral / culture-fit interview with the hiring manager
6. Offer discussion and reference checks

Tip: Candidates are encouraged to review common data structures, algorithms, and system design concepts before the technical rounds.

About the Employer

KIWI.KI GmbH is the organisation posting this opportunity. While full company details are available on the original job listing, here is what you should research before applying:

• Company size and culture: Review the company's LinkedIn profile, Glassdoor reviews, and their official website to understand team size, work culture, and employee satisfaction.
• Products and services: Familiarise yourself with what the company builds, sells, or delivers. Being knowledgeable about their offerings will set you apart during interviews.
• Recent news: Search for any recent fundraising, acquisitions, product launches, or leadership changes — these often come up in interviews and signal company health.
• Location and offices: The role is based in or around Berlin. Confirm office address, remote policy details, and travel requirements during the process.
• Where this listing was found: This job was sourced from Arbeitnow.

How to Apply & Preparation Tips

To apply for the Senior Fullstack Developer with Backend Focus (m/f/d) position, follow these steps:

1. Tailor your resume: Customise your CV to match the specific requirements listed in the job description. Use keywords from the posting to pass Applicant Tracking System (ATS) filters.
2. Write a compelling cover letter: Even if not mandatory, a concise cover letter demonstrating your enthusiasm and fit for the role significantly improves your chances.
3. Apply via the original listing: Use the apply link on the original job post to submit your application. Avoid applying through third-party channels that may delay or lose your submission.
4. Prepare for phone screening: Be ready for an initial call within 3–7 business days of applying. Have your resume and a quiet space ready.
5. Follow up professionally: If you haven't heard back in 7–10 business days, a brief, polite follow-up email to the recruiter is acceptable and often appreciated.

Key skills relevant to this role include: Remote, Software Development. Ensure these are prominently featured on your resume and LinkedIn profile.

Disclaimer: This listing is aggregated from a public job board for informational purposes. JobSetuu does not guarantee the accuracy or current availability of this position. Always verify the details on the employer's official careers page before applying.