Principal Python Engineer
- Level
- Principal
Not stated in the posting: salary, work type, visa.
Open. First seen 2 October 2026.
About the role
At Mindera, we believe that software is built by people, for people, with high-performance systems that impact users worldwide.
We are looking for a PRINCIPAL PYTHON ENGINEER to join an agile, collaborative team where your voice matters as much as your code.
As an experienced engineer within Mindera you need to have an excellent understanding of how to define and deliver solutions iteratively and collaboratively. You’ll be challenged to solve complex problems and build seamless user interactions to world-class standards.
We value empathy, self-organization, and a positive attitude. If you are approachable, communicate clearly, and believe that team fit is just as important as technical expertise, you'll feel right at home here.
At Mindera we encourage the use of AI to assist with coding and related tasks. We find a persons skill in engineering and software craft, has a big impact long term successful delivery, with or without AI. Our goal in the interview process is to understand the candidates knowledge and skill with engineering. If you need to, or plan to use AI, please be transparent with us when you're using it, to avoid issues and misunderstandings that can either: impact your chance of securing the role or impact your success at Mindera.
When you join Mindera we welcome you into a fun and politics-free work culture, built on the principles of lean and self-organisation.
Note: Depending on the project and our clients' needs, you may get the chance to pack your bags and take off every now and then. Typically, we estimate travel time to be between 0% and 15%.
Requirements
HOW YOU’LL MAKE AN IMPACT:
- Define and drive technical strategy, architecture, and engineering standards
- Design and deliver scalable systems supporting personalisation, search, recommendations, and ML-powered features
- Partner closely with Product, Data Science, and Design to deliver customer-centric solutions
- Lead and influence technical decision-making across multiple teams and platforms
- Mentor and support senior engineers, helping to raise the overall engineering capability
- Improve engineering quality, reliability, and productivity through best practices, tooling, and platform enhancements
YOUR SKILLS & EXPERIENCE
- An experienced technical leader with a strong background in Java/Python and large-scale production systems
- Strong experience working with Machine Learning systems and collaborating with Data Science teams
- Skilled in system design and architecture, with the ability to deliver scalable, high-quality solutions
- Comfortable working across cross-functional environments with multiple stakeholders
- Passionate about growing others and driving engineering excellence
- A strong communicator who can influence technical and business decisions at all levels.
We'd love to get to know you better!
Benefits
THE PERKS OF BECOMING A MINDER:
- Private medical subscription
- Private medical subscription for children
- Counseling and psychotherapy services
- Reimbursement for eyeglasses
- Self-proposal salary process
- Annual profit distribution, subject to company performance and board decision
- Mindera Unit Plan
- Flexible benefits options (sports, medical, cultural, donations)
- Coaching and development guidance
- Trainings and learning opportunities to grow within your role
- 25 days holiday
- Flexibility to choose where you work from
- Vacation incentive
- Parties, gatherings & trips
WHY MINDERA?
We're thrilled to have the opportunity to share with you what it's like to be a part of the Mindera community.
We're a group of friendly and talented individuals who work together to bring projects to life, in a fun, politics-free environment.
Our culture is all about being adaptable and self-organized. We want Minders to take risks, make decisions, work together and feel free to be their most authentic selves, every single day.
We work closely with our clients to truly understand their products and develop high-performance, resilient, and scalable software systems that make a real impact for their users and businesses, worldwide.
We are proud of our work, we're always learning and growing in our Agile and collaborative environment, and we hope you'll love it here just as much as we do!
Check out our Handbook & get to know us better: https://mindera.com/handbook.pdf
Mindera around the world: Porto, Portugal | Aveiro, Portugal | Coimbra, Portugal | Leicester, UK | San Diego, USA | San Francisco, USA | Chennai, India | Bengaluru, India | Blumenau, Brazil | Cluj-Napoca, Romania | Valencia, Spain | Casablanca, Morocco | Melbourne, Victoria, Australia & Remote
What this role asks for
Particular to this role
Machine Learning
Rare in Mindera's other 43 open postings.
Standard for backend roles
Java · Python
Common in backend postings at any company.
Read against Mindera's other open postings on this site.
The team: Engineering HIRES STEADILY
This role is one of 30 open in Engineering. 6 were posted in the last 30 days and the oldest in April: a team that hires all year rather than one being built.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
Agile (24 of 30), Azure (17 of 30), CI/CD (16 of 30), Java (14 of 30), GraphQL (11 of 30), Terraform (11 of 30), Docker (10 of 30)
OTHER ROLES ON THIS TEAM
- Senior Tech Product Owner posted Oct 14
- Senior Java Backend Engineer - 8+ Years Experience Required posted Oct 13
- Senior Java Developer with Shopify experience posted Oct 7
- Staff Frontend Software Engineer - React and Next.js posted Oct 2
- Senior iOS Developer posted Sep 28
- Principal - Python Engineer posted Sep 23
- Senior/Staff Java FullStack Developer posted Sep 16
- Senior Java Backend Developer posted Sep 15
- Lead Data Scientist posted Sep 14
- Senior Mobile Developer (Android) posted Sep 10
- Senior AI Engineer - AI Systems posted Sep 9
- Senior Data Engineer posted Sep 2
- Java Technical Lead/Staff Engineer - with Azure posted Sep 2
- Senior Tech Product Owner posted Aug 27
- Python Software Engineer - Specialist posted Aug 12
- Senior Engineer AI Specialist posted Aug 7
- Microsoft Viva Amplify & Communication Engineer posted Aug 6
- Microsoft 365 Copilot Engineer posted Aug 6
- Mobile Developer (Android) posted Jul 15
- Senior Java Developer posted May 13
- Senior Java Developer with Kotlin posted May 13
- Staff Java Backend Developer posted Apr 22
- Senior Java / Kotlin Backend Developer posted Apr 20
- Senior Data Engineer - Morocco posted Apr 16
- Senior Java Fullstack Developer (Java + Next.js + Cloud) posted Mar 17
- Java Developer - SharePoint / PowerApps Development posted Feb 3
- Senior Full-Stack Software Engineer (React, Next.js & Java) posted Jan 27
- Senior Frontend Software Engineer - React.Js and Next.Js posted Jan 26
- Senior Full Stack Developer/Tech Lead posted Apr 5
From the team and dates on Mindera's own job board.
Posting history
Reposted once since 21 July 2026: a posting for this role in Cluj-Napoca was taken down and the role was posted again.
- 2 October 2026 – open (this posting)
- 21 July 2026 – closed 13 August 2026
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