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backend software engineer ai music video platform

Neural Frames

<div>
 <p>
  Neural Frames is a leading AI music video generator, turning any song into a fully produced music video in minutes. We're bootstrapped, profitable, and growing fast at over $5M ARR.
 </p>
 <br/>
 <p>
  Our ambition is to build a category-defining company, helping tens of millions of audio creators to visualize their content and promote it online.
 </p>
 <br/>
 <p>
  As a profitable company, there is no VC drama. We are a small, ambitious group of people, striving to build something creators love.
 </p>
 <br/>
 Tasks
 <br/>
 <ul>
  <br/>
  <li>
   Own the systems that turn songs into videos: video generation pipelines, model orchestration, queue management, and the infrastructure that keeps it all running at scale.
  </li>
  <br/>
  <li>
   Design and build backend services in Python that orchestrate multiple AI providers (we work with fal, BytePlus, OpenRouter, AWS and others) and gracefully handle their quirks, failures, and pricing trade-offs.
  </li>
  <br/>
  <li>
   Improve reliability, latency, and cost across the generation stack. Every second shaved off a render and every cent saved per video compounds across millions of generations.
  </li>
  <br/>
  <li>
   Build the infrastructure for new product surfaces working closely with the founder and tech lead on architecture decisions.
  </li>
  <br/>
  <li>
   Instrument and monitor what you ship. You'll have real visibility into how your code performs in production and the autonomy to fix what's broken.
  </li>
  <br/>
  <li>
   Contribute to the AI/ML side of the stack: prompt engineering, model evaluation, fine-tuning pipelines, and experimenting with new models as they ship.
  </li>
  <br/>
 </ul>
 <br/>
 Requirements
 <br/>
 <ul>
  <br/>
  <li>
   You've shipped production Python backends that handled real load - async workloads, queues, retries, the unglamorous stuff that makes systems actually work.
  </li>
  <br/>
  <li>
   You're comfortable working with AI APIs and have opinions about how to wrangle them: cost, latency, failure modes, model selection.
  </li>
  <br/>
  <li>
   You think in systems. When something breaks, your instinct is to find the root cause, not patch the symptom.
  </li>
  <br/>
  <li>
   You have high agency. You see a bottleneck, you fix it. You don't wait for a ticket.
  </li>
  <br/>
  <li>
   Bonus points: experience with video/audio processing pipelines (ffmpeg, GStreamer, etc.), GPU orchestration, multi-provider AI infrastructure, or distributed systems at scale.
  </li>
  <br/>
  <li>
   You're genuinely excited about generative AI and where it's heading. You probably have a side project or two that proves it.
  </li>
  <br/>
  <li>
   You're based in Berlin and can join us in the office on at least four days a week.
  </li>
  <br/>
 </ul>
 <br/>
 Benefits
 <br/>
 <p>
  VSOPs &amp; Profit Sharing. Bi-weekly team lunches, regular team events, an annual summer offsite, learning &amp; development support, productivity tools, a one-time headphone budget, Deutschlandticket, and a &euro;5,000 referral bonus.
 </p>
 <br/>
 <p>
  neural frames is dedicated to creating an equitable, inclusive, and supportive work environment that brings people together from diverse backgrounds, experiences, and perspectives. Our strength is in our differences. We're proud to be an equal opportunity employer and welcome all applicants as we're committed to promoting a culture of opportunity for all.
 </p>
</div>


Backend Software Engineer // AI Music Video Platform

THRYVE

<div>
 <p>
  <strong>
   Product Engineer (Full Stack/AI) Berlin | On-site/Hybrid
  </strong>
 </p>
 <p>
  <br/>
 </p>
 <p>
  We're partnering with an ambitious health-tech startup building AI-powered software that helps clinicians make better decisions and improve patient outcomes, working on one of the hardest and most meaningful challenges in healthcare: turning complex clinical data into products that help medical teams identify risk earlier, intervene faster, and ultimately improve lives.
 </p>
 <p>
  <br/>
 </p>
 <p>
  We're looking for a strong engineer who wants to own products, not tickets.
 </p>
 <p>
  <br/>
 </p>
 <p>
  You'll work across backend, frontend, AI integrations, and product strategy, taking features from idea to production. You'll collaborate directly with founders, designers, clinicians, and engineers to solve complex technical problems and ship software that genuinely matters.
 </p>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   What You'll Work On
  </strong>
 </p>
 <ul>
  <li>
   Building production-grade AI features and workflows
  </li>
  <li>
   Designing scalable backend systems and APIs in Python
  </li>
  <li>
   Developing modern React/TypeScript applications
  </li>
  <li>
   Integrating machine learning models into real-world products
  </li>
  <li>
   Working with complex, high-value healthcare data
  </li>
  <li>
   Improving reliability, observability, testing, and engineering quality across the platform
  </li>
 </ul>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   We're Looking For
  </strong>
 </p>
 <ul>
  <li>
   Strong software engineering fundamentals
  </li>
  <li>
   Professional experience with Python and React/TypeScript
  </li>
  <li>
   Product-minded engineers who enjoy understanding user problems
  </li>
  <li>
   Builders who take ownership and thrive in small, high-performing teams
  </li>
  <li>
   Engineers excited by AI-enabled products and difficult technical challenges
  </li>
  <li>
   M.Sc. in a STEM field
  </li>
 </ul>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   Nice To Have
  </strong>
 </p>
 <ul>
  <li>
   Experience with AI/ML systems
  </li>
  <li>
   Cloud infrastructure and DevOps experience
  </li>
  <li>
   Exposure to healthcare, regulated software, or data-intensive products
  </li>
 </ul>
 <p>
  <br/>
 </p>
 <p>
  <strong>
   Why Join?
  </strong>
 </p>
 <ul>
  <li>
   Build technology with real-world impact
  </li>
  <li>
   Work directly with exceptional founders and engineers
  </li>
  <li>
   Own major product initiatives end-to-end
  </li>
  <li>
   Solve technically challenging problems at the intersection of software, AI, and healthcare
  </li>
 </ul>
 <p>
  <br/>
 </p>
 <p>
  If you're the kind of engineer who enjoys moving quickly, taking ownership, and building products from the ground up, we'd love to hear from you.
 </p>
</div>


Full Stack Engineer

TechBiz Global GmbH

<div><p><b>Berlin &bull; Cybersecurity &amp; AI Startup &bull; Recently Funded</b></p><p>
A newly funded cybersecurity startup in Berlin is looking for a <b>Engineering Team Lead</b> to join as a founding team member and help design the core security, identity, and enforcement foundations of a next-generation AI-powered risk management platform.</p><p>
We are an early-stage startup founded by experienced cybersecurity leaders with backgrounds in Israeli intelligence units.<br>
We are looking for a hands-on <b>Founding Engineering Team Lead</b> for a hybrid role based in central Berlin. If you are passionate about cybersecurity and AI, thrive in fast-paced startup environments, and enjoy building complex platforms from the ground up, this is an opportunity to make a real impact.</p><p>
They&rsquo;re building a next-generation cyber risk platform that helps enterprises understand, measure, and reduce identity risk at scale. Their goal is to turn complex identity and security data into clear, actionable risk insights that CISOs and CTOs can trust. You will work from scratch on core platform components from day one, shaping how modern enterprises manage and reason about risk using cloud-native systems, AI-driven analysis, and automated enforcement through AI agents.</p><h3 class="jobSectionHeader"><b><br>
Key Responsibilities:</b></h3><ul><li>
Lead and grow a small, high-performing engineering team while remaining <b>hands-on</b></li><li><b>
Design, build, and review</b> production backend and platform code alongside the team</li><li>
Own delivery of the <b>engineering roadmap</b>, balancing speed, quality, and security</li><li>
Act as a <b>technical leader</b> by setting architecture direction and enforcing engineering standards</li><li><b>
Contribute</b> directly to critical features, integrations, and platform foundations</li><li>
Establish lightweight <b>engineering processes</b> that enable fast execution without bureaucracy</li><li>
Mentor engineers through <b>code reviews</b>, pairing, and technical guidance</li><li>
Contribute <b>hands-on</b> in design and build architecture, configure systems, code 70% of the time in GoLang.</li><li><b>
Remove blockers</b> and unblock delivery across backend, frontend, data, and DevOps</li><li>
Collaborate closely with <b>CEO, CPTO, and product leadership</b> on technical and execution decisions</li><li>
Support <b>hiring</b>, onboarding, and technical evaluation of engineers</li><li>
Foster a culture of <b>ownership, pragmatism, and low ego</b></li><li>
Build whole Security platform setup <b>from scratch</b></li><li><b>
Partner closely with backend and AI engineers</b> to design secure service boundaries and deployment models</li><li><b>
Troubleshoot</b> and resolve complex production incidents across infrastructure, networking, and application layers</li><li><b>
Build PoCs</b> and validate infrastructure and security design decisions in an early-stage environment</li><li>
Support <b>compliance readiness</b> by enabling controls, logging, and evidence collection for security frameworks</li><li>
Continuously improve <b>platform cost efficiency</b>, reliability, and operational maturity</li><li>
This role reports directly to <b>CEO &amp; CPTO</b></li></ul><p><b><br>
Must have skills</b></p><ul><li><b>
10+ years</b> of professional software engineering experience</li><li><b>
3+ years</b> of experience leading engineering teams <b>while remaining hands-on</b></li><li><b>
3+ years </b>of<b> GoLang </b>experience</li><li><b>
3+ years </b>experience with <b>AWS</b> in production environments</li><li>
Strong <b>code quality</b> bar and experience with architectural reviews</li><li>
Ability to context-switch between technical <b>topics and people leadership</b></li><li>
Strong execution mindset and comfort operating under <b>ambiguity</b></li><li>
Hands-on coding mentality; <b>can build things from scratch </b>including security architecture yourself</li><li>
Hands-on experience with <b>Docker, Kubernetes</b> (EKS) and containerized workloads</li><li>
Experience with <b>CI/CD pipelines</b> (GitHub Actions or similar)</li><li>
Experience with <b>monitoring, logging, observability</b> (Grafana, OpenTelemetry, Prometheus)</li><li>
Experience with <b>Coding CoPilots </b>(Claude Code, GitHub Copilot, AWS CodeWhisperer, Codex, etc.)</li><li>
Knowledge of Experience supporting <b>production SaaS platforms</b></li><li>
High ownership mentality, startup mindset, and ability to <b>move quickly</b></li><li>
Experience in <b>startup or scale-up environments</b></li><li>
Low ego, high commitment, and a <b>true tech startup mentality</b></li><li>
Excellent <b>English</b> communication skills</li></ul><p></p><p><b>
Nice-to-have requirements</b></p><ul><li>
Previous experience as a founding or <b>early-stage</b> Engineering Manager</li><li>
Experience in <b>cybersecurity</b>, identity, or enterprise SaaS platforms</li><li>
Exposure to <b>DevOps, SRE, or data engineering</b></li><li>
Experience <b>scaling teams</b> and systems simultaneously</li><li>
Experience with security architecture, identity security, or <b>security engineering</b></li><li>
Familiarity with <b>compliance frameworks</b> (NIS2, DORA, ISO 27001, SOC 2)</li><li>
Understanding of <b>OAuth/OIDC, API tokens, IdP, scopes, SSO, SCIM, roles, RBAC/ABAC, service accounts</b></li><li>
Familiarity with cloud identity and security controls (e.g. <b>IAM, CloudTrail, Azure Active Directory / Entra ID</b>)</li><li>
Hands-on with SIEM platforms such as <b>Splunk, Microsoft Sentinel, or IBM QRadar</b></li><li>
Experience designing <b>permission models, identity graphs, or access control frameworks</b></li><li>
Knowledge of tokenization, <b>Zero Trust principles</b>, least privilege, and continuous verification</li><li>
Experience with Security related to <b>AI/LLM systems, agent logic, or willingness to learn fast</b></li><li>
Familiarity with <b>AI agent behavior</b>, LLM security, or agent sandboxing</li><li>
Previous experience in <b>cybersecurity</b>, identity startups</li><li>
You are a fan of <b>rock or metal</b> music</li><li>
Excellent <b>German</b> communication skills</li></ul><p></p><p><b>
Benefits</b></p><ul><li><b>
Founding Team Member Equity</b> &mdash; ESOPs in a well funded cybersecurity company.</li><li><b>
Competitive Compensation</b> &mdash; salary aligned with market, flexible early-stage arrangements possible.</li><li><b>
Founding Team Member Status</b> &mdash; shape the company from day one and own critical security technical decisions.</li><li><b>
Fresh Funding Secured</b> &mdash; immediate runway to build, hire, and execute fast.</li><li><b>
Security Contribution</b> &mdash; contribute to security tech architecture across identity, AI agents, and enforcement.</li><li><b>
High Autonomy</b> &mdash; freedom to design and build without corporate overhead.</li><li><b>
Work with a Technical CEO and CPTO</b> &mdash; fast iteration, strong alignment, clear direction.</li><li><b>
Cutting-Edge Domain</b> &mdash; identity security, SaaS-to-SaaS access, AI agent governance.</li><li><b>
Massive Learning Curve</b> &mdash; quickly gain depth in cybersecurity, identity, and AI systems.</li><li><b>
Fast Career Path</b> &mdash; opportunity evolve into higher leadership as we scale the engineering team</li><li><b>
Berlin Location</b> &mdash; top-tier tech environment with strong cybersecurity and AI ecosystems.</li><li><b>
Direct Impact</b> &mdash; your architecture and code become the foundation of the entire platform.</li><li><b>
Best Equipment and Tools</b> - High quality equipment and modern tools to help you do your best work from day one.</li><li><b>
Team Offsites - </b>Regular team offsites designed to build strong connections, alignment, and shared momentum.</li></ul></div><p></p>

Founding Engineering Team Lead (HandsOn)

NextexAI

<div><p>NexTex AI is a Berlin-based deep-tech startup building an AI-powered intelligence layer for textile manufacturing.</p>
<p>
Our platform combines industrial cameras, retrofit sensors, PLC/SCADA signals, edge computing and artificial intelligence to detect textile defects, optimize production processes and generate sustainability KPIs for CSRD and EU Green Deal compliance.</p>
<p>
We are currently preparing our EXIST Startup Grant application and a ProFIT Berlin R&amp;D funding application. Our goal is to build and validate an MVP with pilot textile manufacturers during the first year and scale into one of Europe's leading industrial AI platforms for textile production.</p>
<p>
We are looking for a Founding Software Engineer who wants to join the founding team and help build the technical backbone of the company from day one.</p>
<h2 class="jobSectionHeader"><b>
Tasks</b></h2>
<p>
As a Founding Software Engineer, you will be responsible for designing and building the backend systems, cloud infrastructure and AI deployment architecture behind NexTex AI.</p>
<p>
You will work closely with the founders, machine learning engineers and future computer vision engineers to create a scalable edge-to-cloud platform for industrial AI applications.</p>
<p>
Your responsibilities include:</p>
<ul><li>Building cloud-native infrastructure and deployment pipelines</li></ul>
<ul><li>Designing and developing scalable backend services and APIs</li></ul>
<ul><li>Building dashboards, analytics systems and internal tools</li></ul>
<ul><li>Developing industrial data pipelines for machine, sensor and camera data</li></ul>
<ul><li>Supporting edge-to-cloud communication and industrial integrations</li></ul>
<ul><li>Supporting AI model deployment, monitoring and inference workflows</li></ul>
<ul><li>Structuring textile production data, defect classifications and sustainability KPIs</li></ul>
<ul><li>Working directly with pilot factories and industrial partners</li></ul>
<ul><li>Contributing to product architecture and technical strategy</li></ul>
<h2 class="jobSectionHeader"><b>
Requirements</b></h2>
<p>
Strong software engineering background</p>
<ul><li>Strong Python and C++ programming skills</li></ul>
<ul><li>Experience with FastAPI, Django, Flask, Node.js or similar frameworks</li></ul>
<ul><li>Experience with PostgreSQL or similar database systems</li></ul>
<ul><li>Experience with Docker and containerized environments</li></ul>
<ul><li>Experience with AWS, Azure or Google Cloud</li></ul>
<ul><li>Understanding of REST APIs and scalable software architectures</li></ul>
<ul><li>Fluent English</li></ul>
<ul><li>Ability to work independently in an early-stage startup environment</li></ul>
<p>
Preferred Qualifications</p>
<ul><li>Located in Berlin or willing to relocate to Berlin</li></ul>
<ul><li>Professional working proficiency in German (prior work experience in a German-speaking environment preferred)</li></ul>
<ul><li>Experience with Computer Vision and Machine Learning systems (using frameworks such as PyTorch, TensorFlow or ONNX)</li></ul>
<ul><li>Experience with MLOps and model deployment pipelines</li></ul>
<ul><li>Experience with Edge AI deployments (NVIDIA Jetson, CUDA or TensorRT)</li></ul>
<ul><li>Experience with Industrial IoT, PLC/SCADA systems or manufacturing environments</li></ul>
<ul><li>Startup or founding-team experience</li></ul>
<ul><li>Interest in textile manufacturing, sustainability and Industry 4.0</li></ul>
<h2 class="jobSectionHeader"><b>
Benefits</b></h2>
<ul><li>10% equity participation as a founding team member</li></ul>
<ul><li>Approx. &euro;2,500/month through the German Federal EXIST Startup Grant during the first year</li></ul>
<ul><li>Significant compensation increase planned following successful MVP validation and funding milestones</li></ul>
<ul><li>Opportunity to build a deep-tech startup from day one</li></ul>
<ul><li>Direct impact on product, technology and company strategy</li></ul>
<ul><li>Access to real industrial production environments and pilot textile factories</li></ul>
<ul><li>Work on AI, Computer Vision, Edge AI, Industrial IoT and Sustainability Intelligence</li></ul>
<ul><li>Direct collaboration with experienced founders, academic advisors and industry partners</li></ul>
<ul><li>Startup coaching, legal support and mentoring through EXIST and ProFIT Berlin</li></ul>
<ul><li>Opportunity to shape both the product and company from an early stage</li></ul>
<ul><li>Flexible working environment</li></ul>
<ul><li>Potential CTO-level growth opportunities as the company scales</li></ul>
<p>
We are looking for ambitious engineers who want to build something meaningful from the ground up. If you are excited about AI, industrial systems, sustainability and entrepreneurship, we would love to hear from you.</p>
<p>
To apply, please submit:</p>
<ul><li>Your CV</li></ul>
<ul><li>LinkedIn profile</li></ul>
<ul><li>A short introduction explaining why you are interested in joining NexTex AI</li></ul>
<p>
Selected candidates will be invited to:</p>
<p>
1. Introductory discussion with the founders</p>
<p>
2. Technical discussion and architecture review</p>
<p>
3. Final founder meeting</p>
<p>
If successful, you will join NexTex AI as a founding team member with 10% equity and play a key role in building the future of industrial AI for textile manufacturing.</p>
<p>
We look forward to hearing from you.</p></div>

Founding Software Engineer (Backend, Cloud & AI Infrastructure)

meinUnterricht GmbH

<div><h4 class="jobSectionHeader"><b>Job description</b></h4><p></p><div>
Do you love untangling messy systems, shipping real improvements, and setting a higher engineering bar?</div><div>
Join meinUnterricht, Germany's leading platform for teachers, as a Staff Engineer.</div><div><br>
You'll own the architecture of the core systems that run our business and decide how a decade of accumulated complexity gets simplified. We want a hands-on architect who questions the status quo and pushes our AI-first engineering even further.</div><div></div><div><b><br>
Our Tech Stack</b></div><div></div><div><br>
We believe in transparency. You will be working across both legacy and modern systems, with a strong mandate to help us consolidate and modernize over time.</div><div><br>
Where we are going (the new stack): Monorepo architecture, APIs built with Hono, Prisma for DB migrations, Vitest, PostgreSQL, Stripe, and AWS CDK for infrastructure.</div><div><br>
What we currently have: React, Redux, Node.js (Hapi), MongoDB (Mongoose), MySQL, Zuora, and AWS (EC2, ECS, CloudFront).</div><p></p><h4 class="jobSectionHeader"><b><br>
What you'll do</b></h4><p></p><ul><li><div>
Drive System Architecture: Lead the technical direction for our core systems, including subscription infrastructure, cloud foundations, shared backend services, database architecture, and data pipelines.</div></li><li><div>
Modernize the Foundation: Identify what should be kept, replaced, merged, or removed across our legacy systems, and turn that into a pragmatic target architecture with an execution path.</div></li><li><div>
Technical Ownership: You stay deep in the code on the highest-impact problems. You make the architecture decisions and the hard technical tradeoffs, and you set the bar others build to.</div></li><li><div>
Raise the Bar with AI: Model an AI-first engineering culture by using tools like Claude Code, Codex, or similar across coding, migrations, infrastructure, and workflow automation.</div></li></ul><p></p><h4 class="jobSectionHeader"><b>
You come with</b></h4><p></p><ul><li><div>
Broad Systems Depth: Strong backend (fluency in TypeScript/Node.js) and infrastructure experience across areas like databases, cloud services, queues, caching, networking, integrations, or pipelines. Not just one narrow specialty.</div></li><li><div>
Migration Experience: You have led or played a major role in moving production systems from old to new, and you understand the messy middle: dual-running, rollout strategy, data integrity, and rollback planning.</div></li><li><div>
Product Sense: You think beyond the system to the user and the business. You balance long-term architecture against the value that needs to ship now.</div></li><li><div>
Cloud &amp; Platform Experience: You're comfortable working in AWS-heavy environments and have practical experience improving infrastructure, reliability, and developer workflows. IaC experience is a big plus.</div></li><li><div>
AI-Native Mindset: You actively use AI tools in real engineering work and see them as a serious force multiplier, not a gimmick.</div></li></ul><p></p><h4 class="jobSectionHeader"><b>
Why us?</b></h4><p></p><ul><li><div>
Meaningful Product: Build infrastructure behind a platform that helps tens of thousands of teachers prepare better lessons, faster.</div></li><li><div>
Real Ownership: You'll own a critical systems domain with direct impact on revenue, product velocity, and the technical future of the company.</div></li><li><div>
AI-First Engineering Culture: We invest heavily in AI tooling (Claude Max Plan or equal) and expect engineers to use it deeply and practically in day-to-day work.</div></li><li><div>
Strong Berlin Setup: Work from our office at Potsdamer Platz with a hybrid setup that supports both focused execution and in-person collaboration.</div></li><li><div>
Meaningful Benefits: A device of your choice, Deutschland Ticket or Urban Sports Club, work remotely from anywhere in the world for up to 10 days per year, Jobrad, and more.</div></li></ul><p></p><h4 class="jobSectionHeader"><b><br>
Process</b></h4><p></p><ul><li><div>
Remote coding challenge</div></li><li><div>
Technical interview (video call)</div></li><li><div>
System design interview (preferably on site in our offices in Berlin)</div></li><li><div>
Technical leadership interview (preferably on site in our offices in Berlin)</div></li></ul><p></p><h4 class="jobSectionHeader"><b>
About us</b></h4><p>
At meinUnterricht - the leading digital platform for teachers - we support teachers every day in their lesson planning.<br>
<br>
meinUnterricht GmbH is a subsidiary of the Klett Group. We offer digital education solutions for teachers and schools. Our web-based platform contains a wide range of resources such as specialist journals and learning videos. The aim is to simplify everyday teaching and improve academic performance. Innovation and sustainable growth are core corporate values for us.</p></div>

Staff Engineer

Chapter 2

<div><p>Chapter 2 is partnering exclusively with a leading digital health startup at the forefront of AI-enabled cardiac telemonitoring. Working with institutions including Charit&eacute;, Mayo Clinic, and UCSF, they are building technology that detects early signs of heart failure deterioration and improves patient outcomes at scale.</p><p>
They are looking for a Full Stack Engineer to join a small, high-ownership team and take end-to-end responsibility for significant product projects across their AI-enabled platform.</p><p><b>
The Role</b></p><p>
You will work closely with the Product Lead to scope, build, and ship substantial features across the full stack, from physician and patient interfaces on the frontend to APIs, data modelling, and ML integration on the backend. You won't be handed tickets. You'll shape projects from concept through to post-launch iteration, lead a small squad of engineers, and collaborate directly with clinical partners, sales, and founders.</p><p><b>
What You'll Need</b></p><ul><li><p>
M.Sc. in a STEM field with 2+ years of full-stack experience, or 4+ years without</p></li><li><p>
Strong Python on the backend, TypeScript/React on the frontend</p></li><li><p>
A product and user-focused mindset, you care about UX and make design decisions, not just implementation decisions</p></li><li><p>
Comfort operating with high autonomy in a small team</p></li><li><p>
Fluent English</p></li></ul><p><b>
Nice to Have</b></p><ul><li><p>
Experience with ML/data pipelines, audio/signal processing, or clinical data</p></li><li><p>
Background in regulated software (MDR, ISO 13485, IEC 62304) or healthcare products</p></li><li><p>
DevOps and cloud infrastructure experience (GCP, CI/CD)</p></li><li><p>
German language skills</p></li></ul><p><b>
What's on Offer</b></p><ul><li><p>
Competitive compensation package with meaningful equity</p></li><li><p>
A mission that matters, technology with direct impact on patient outcomes</p></li><li><p>
A Berlin-Mitte office and a team built from some of the best engineering and clinical minds in digital health</p></li><li><p>
Urban Sports Club membership</p></li></ul><p>
If you are a full-stack engineer who wants to own real product work in a clinical environment that is genuinely changing how heart disease is managed, we'd like to hear from you.</p></div>

Flix SE

<div></div><div><div><div><div><p><b>City:</b> Berlin<br>
<b>Department:</b> IT &amp; Engineering</p>
<p><b>Recruiter:</b> Anna Symonenko</p></div><div></div><div><br>
</div></div><div></div><div><div><div><p>At Flix, we offer a tech-driven environment where innovation meets real-world impact, with competitive pay, strong growth opportunities, and a culture of collaboration and ownership.</p>
<p>
We're looking for an experienced<b> Python Engineer (m/f/d)</b> to join our Supply Division. You'll make an impact by taking ownership of core backend systems that power our network planning optimization product. Your work directly supports network planners in scheduling vehicles, drivers, and timetables &mdash; improving travel experiences for millions of passengers while driving profitability.</p>
<p>
Our team builds and maintains an optimization platform addressing use cases from vehicle and driver scheduling to timetable optimization. We follow modern system design &mdash; Domain-Driven Design, Hexagonal Architecture, and SOLID principles &mdash; with strict architectural boundaries enforced by tooling. Our backend workloads (APIs, event consumers, Kubernetes jobs) are built with high code quality standards.</p>
<p>
The product's algorithm engine is developed by Operations Research Engineers using mathematical optimization. As a Python Engineer, you will own the engineering shell around these algorithms: the APIs, use cases, data pipelines, infrastructure, and the domain models that connect optimization output to the rest of the system.</p>
<p>
You'll collaborate closely with other engineering teams to design and implement the interfaces and contracts that connect our platform to the wider system landscape.</p>
<p><b>
Our current tech stack and toolset include:</b></p>
<ul>
<li>Python, TypeScript, Shell scripting</li>
<li>Flask, React, Pytest</li>
<li>PostgreSQL, Confluent Kafka, DataDog</li>
<li>AWS tools, Terraform</li>
<li>GitLab, Kubernetes, Docker, Azure AD</li>
</ul>
<p><b>About the Role</b></p>
<ul>
<li>Own and evolve the backend: APIs, use case layer, domain models, serialization, and event-driven pipelines (Kafka)</li>
<li>Take engineering ownership of new product modules &mdash; designing the architectural scaffold, wiring layers, and ensuring clean boundaries</li>
<li>Build and maintain infrastructure: Kubernetes deployments, CI/CD pipelines, and cloud resources (AWS)</li>
<li>Collaborate closely with Operations Research Engineers to integrate optimization algorithms into the product</li>
<li>Work in an AI-augmented development workflow &mdash; actively using code agents and AI assistants as a natural part of how you ship software</li>
<li>Contribute to architecture decisions and uphold code quality through reviews, testing, and continuous improvement</li>
<li>Write well-tested, self-documenting code following hexagonal architecture patterns</li>
<li>Share your expertise and mentor colleagues, promoting a culture of knowledge sharing and learning</li>
</ul>
<p><b>About You</b></p>
<ul>
<li>Academic background in Computer Science or equivalent</li>
<li>3+ years of experience in backend software engineering with Python</li>
<li>You're comfortable driving alignment across teams &mdash; designing interfaces, agreeing on contracts, and taking end-to-end ownership of integrations</li>
<li>It's beneficial is you have experience with modern front-end stack (some basic front-end tasks are part of our scope)</li>
<li>Experience applying clean architecture principles (hexagonal, ports-and-adapters, DDD) or similar approaches in production</li>
<li>Experience with relational databases (PostgreSQL) and event-driven systems (Kafka or similar)</li>
<li>Hands-on experience with AI-augmented development and eager to make it a core part of how you work</li>
<li>Solid experience with containerization (Docker, Kubernetes) and CI/CD pipelines</li>
<li>Familiar with testing best practices: unit, integration, acceptance testing</li>
<li>Experience with cloud platforms (AWS or similar) and infrastructure as code (Terraform)</li>
<li>Familiarity with mathematical optimization or data-intensive applications is a plus</li>
</ul>
<p>We recognize that everyone carries a unique set of valuable skills and experiences. If you think you could have an impact even though you don't meet 100% of the requirements, we still encourage you to apply. We want to hear from you!</p>
<p><b>
What We Offer</b></p>
<ul>
<li><b>Travel perks</b>: 12 free Flix vouchers + 12 discount vouchers for friends &amp; family.</li>
<li><b>Work from (M)Anywhere</b>: Depending on your role, work from another location for up to 60 days per year.</li>
<li><b>Hybrid work model</b>: We are an office-first company, but we offer flexibility to balance work and life.</li>
<li><b>Wellbeing support</b>: Access confidential 1:1 counselling, courses, and stress management for yourself and up to four family members.</li>
<li><b>Learning &amp; Development</b>: Take advantage of language classes, training courses, and expert-led sessions to grow your skills.</li>
<li><b>Mentoring Program</b>: Connect with experienced colleagues to gain insights and accelerate your career.</li>
</ul>
<p>To view more local benefits specific to each office location,</p>
<p></p>
<p><b>Why Join Flix?</b></p>
<p>
At Flix, we empower our teams to push boundaries and shape the future of mobility. As we continue to scale globally, we harness cutting-edge technology to make mobility smarter, more sustainable, and more affordable.</p>
<p>
If you&rsquo;re looking for a place where you can drive change and redefine how millions of people travel, Flix is the place where you can lead your journey!</p></div></div></div></div></div><p></p>

Python Engineer (m/f/d) - Network Planning

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