--- title: 'Senior AI Engineer at Nelly Solutions' canonical: 'https://feeny.ai/job/senior-ai-engineer-nelly-solutions-berlin-fcagr74xng3s' type: 'job' last_seen: '2026-11-03' --- # Senior AI Engineer at Nelly Solutions - **Company:** Nelly Solutions - **Location:** Berlin, Germany - **Employment:** full-time - **Work type:** hybrid - **Posted:** 2026-03-19 - **Last confirmed live:** 2026-11-03 - **Apply:** https://jobs.ashbyhq.com/nelly/a1d054b8-6ece-4240-ad54-d4db2d0fc427/application **Skills:** Python, TypeScript, LLM, GenAI, RAG, Distributed Systems, API Architecture, Data Modeling, Event-driven Architectures, Caching Strategies, Retrieval Engineering, Embeddings, Knowledge Graphs, AWS, Node.js, FastAPI, Kubernetes, MongoDB, Azure, Kafka > Join Nelly's AI division in Berlin to build cutting-edge AI-enabled fintech solutions for healthcare. You will develop robust data pipelines and AI systems, combining deep ML theory with cloud and data engineering expertise to drive innovative GenAI initiatives. ## Job description We’re on the lookout for an ambitious AI-Engineer to join our Engineering team at our office in Berlin. Join us in building the largest AI enabled fintech for healthcare! What to expect in the role as Senior AI Engineer: As part of our freshly launched AI division at Nelly, where you'll be one of the pioneers shaping our future in AI. In a small, agile team, you'll work on developing cutting-edge AI systems and robust data pipelines—from rapid prototypes to scalable production solutions. This role is ideal for someone who combines deep ML theory with practical cloud and data engineering know-how, and who can drive innovative GenAI initiatives while keeping a pragmatic product focus. ## About Nelly We are building the AI-Driven Financial Operating System for European healthcare, solving the biggest challenges for patients and practices. We create what no bank or software platform can handle. Our all-in-one platform transforms chaotic administrative processes into intelligent, automated workflows, from patient care to billing to next-generation payments. Because we truly believe: healthcare should be less about paperwork and more about people. Why? Because Europe is facing a massive shortage of medical professionals. And if we don't rethink the way practices work, the system won't be able to keep up. With our Series B funding of over €50 million from world-class investors, we are turning our vision into reality. What sets us apart: We work with the best team, which is why we give everything together every day. We believe in Talent Density, because exceptional people make everyone around them better. At Nelly, we move fast and expect everyone to keep up. Stagnation isn’t an option, which is why we invest heavily in growth. AI is an essential part of how we work at Nelly. We expect you to use it every day and give you everything you need to do so. You get trust and ownership and we expect you to speak up, even when it's uncomfortable. What you'll bring: - Technical leadership mindset with high agency and proactive drive—obsessed with building world-class systems and enabling teams to ship exceptional user experiences. - 8+ years building and operating backend systems in production (strong Python skills required - ideal as well: TypeScript for integration work), with 3+ years shipping LLM/GenAI features to users (RAG, tool use, planning, agent frameworks e.g MCP, multi-agent systems). - Strong ML fundamentals with hands-on experience in model evaluation, self-evolving agents (e.g Memory). - Deep expertise in distributed systems design: API architecture, data modeling, high-throughput async systems, event-driven architectures, caching strategies, and performance optimization. - Advanced retrieval engineering experience: embeddings, sophisticated chunking strategies, hybrid search algorithms, schema/metadata design, knowledge graphs, comprehensive eval frameworks, and production monitoring. - Proven track record of technical leadership: driving architecture decisions, mentoring engineers, and establishing engineering best practices. - Experience with cloud native development at scale, ideally AWS, but GCP is a strong plus, too. - Excellent communication skills in English with ability to articulate complex technical concepts to diverse audiences. Bonus skills: - Experience with modern data workflow orchestration frameworks such as Dagster, Airflow, or Prefect, with emphasis on building robust, dependency-aware pipelines at scale. - Track record of technical writing, open-source contributions, or speaking at industry events. - Fluent German is a big plus, to improve the interaction between you and our user base. What we offer: - The people you get to work with. You will work alongside the brightest minds we could find, on hard problems, as a team. We take on challenges together and we never forget to have fun doing it. - Room to grow faster than almost anywhere else. New challenges, more scope, real ownership from day one. We trust you to own it and to speak up when something is wrong. Just do not expect to stand still. - A yearly learning and development budget, plus the coaching, feedback and internal knowledge that actually move you forward. Real investment in your learning. - A front row seat while we build something big. We are building the financial operating system for European healthcare, with AI woven into how we build, sell and support. Real scope, real impact. - Deutschlandticket or Swapfiets membership. - Urban Sports Club membership. - Flexible working hours and a hybrid setup and up to 4 weeks of workation. - A dog friendly office. We welcome applications from people of all genders and backgrounds, regardless of origin or age. If you're convinced you're the right fit for this role - even if your CV doesn't match the requirements 100% - tell us why. ## About Nelly Solutions ## Company Overview - **One-liner**: Nelly provides an AI-powered platform that automates administrative workflows for medical and dental practices, covering the entire patient journey from intake and documentation to billing and payments. - **Entity Type**: Private (Series B – €50M round; total funding $172.2M including $100M debt financing) - **Headquarters**: Berlin, Germany - **Founded**: 2021 - **Founders**: Lukas Eicher, Niklas Radner, Dr. Tobias Heuer, Rasmus Schults, Laurids Seibel ## Core Business - **Industry**: Healthcare IT, Fintech (digital practice operations and billing) - **Target Customers**: B2B – medical and dental practices (small to large), statutory health insurance associations (KV/KZV) - **Mission**: Reduce administrative burdens and bureaucracy so healthcare professionals can focus on patient care – “make the most vital professions in our healthcare system more appealing again” [getnelly.de/en/about](https://www.getnelly.de/en/about) ## Products & Services - **Digital Anamnesis**: Patients complete medical history on their own smartphone/tablet at home or in the practice; data transfers automatically into the practice management system. - **Digital Documents**: Sending, signing, and managing documents via SMS, WhatsApp, or email, including automated reminders. - **KZV / KV Factoring**: Instant payouts of outstanding statutory insurance claims to improve cash flow and liquidity (up to 80% advance rate). - **Digital Payment**: Direct payments via debit/credit card, Apple Pay, Google Pay – both on-site with card terminals and through digital payment links, with automated invoice matching. - **Nelly AI**: Real-time AI-powered documentation during patient treatment (speech-to-text). - **Practice Rating**: Automated review requests and redirects to Google Reviews, with analytics on patient satisfaction. - **PVS Connector**: Integration layer that connects with all major practice management systems (e.g., medatixx) without requiring a system change. ## Market Standing - **Valuation / Market Cap**: Not publicly disclosed - **Key Metric**: Annual revenue ~$4.3M (estimated); Total funding $172.2M (including €50M Series B led by Lakestar, Cathay Innovation, Notion Capital, b2venture, plus $100M debt facility in Oct 2024) - **Notable Investors**: Cathay Innovation, Notion Capital, Lakestar, b2venture, Motive Ventures, Global Founders Capital - **Growth Signals**: 1,000+ practices trusting Nelly; 134 employees (+37.4% YoY); operating in 6 countries (Germany, UK, Spain, Switzerland, South Africa, Italy); joined medatixx HealthHub in June 2026 [linkedin.com](https://de.linkedin.com/company/nelly-solutions) ## Competitive Advantages - **Full-stack patient journey**: One platform covering intake, documentation, billing, factoring, and payments – no need to stitch together multiple vendors. - **Deep integrations**: Works on top of existing practice management systems (any major PVS), reducing switching costs. - **Data security & compliance**: AES-256 encryption, TLS in transit, GDPR-compliant hosting in certified AWS Frankfurt data centers, TÜV-certified data protection [getnelly.de/en](https://www.getnelly.de/en). - **AI‑powered documentation**: Real-time speech-to-text documentation differentiates from legacy digital forms only. ## Strategic Focus - **Deepening platform ecosystem**: Closer integration with practice management software (e.g., medatixx HealthHub) to become the default financial OS for practices. - **Scaling factoring & payments**: Expanding digital factoring (KV/KZV) and instant payout capabilities to improve practice liquidity. - **AI & automation leadership**: Investing in AI engineers and staff AI engineers (open roles) to further automate documentation, billing, and patient communication. - **International expansion**: Already in 6 countries, likely to expand into more European markets. ## Why Work Here - **Culture & Values**: “We only work with nice people” – emphasis on collaboration, kindness, ownership, and learning fast. Monthly team events, startup culture with visible impact [getnelly.de/en/jobs](https://www.getnelly.de/en/jobs). - **Work Model**: Hybrid – choose between home, office, or wherever productive. Up to 4 weeks/year “workation” from other European countries. - **Perks**: Urban Sports Club membership, Germany Ticket (nationwide public transport) or Swapfiets bike, regular team celebrations. - **Engineering Culture**: Strong AI focus (Staff AI Engineer, Engineering Manager AI, Senior AI Engineer roles). Technical team makes up 18% of staff. Modern stack, real ownership, and growth from day one. - **Team & Growth**: 134 people, growing 37% YoY. Open positions: 14 across engineering, sales, marketing, product, and customer success. ## Sources 1. [getnelly.de](https://www.getnelly.de/en) – Product overview, security, features, integrations 2. [getnelly.de/en/about](https://www.getnelly.de/en/about) – Founders, mission, team 3. [getnelly.de/en/jobs](https://www.getnelly.de/en/jobs) – Culture, values, benefits, open positions 4. [linkedin.com/company/nelly-solutions](https://de.linkedin.com/company/nelly-solutions) – Headcount, revenue, funding, employee distribution, investors 5. [getnelly.de/en/imprint](https://www.getnelly.de/en/imprint) – Legal entity, registration ## Other roles at Nelly Solutions - [Product Growth Manager](https://feeny.ai/job/product-growth-manager-nelly-solutions-berlin-nekh7gn42mj6) — Berlin, Germany - [Staff Product Manager - Platform](https://feeny.ai/job/staff-product-manager-platform-nelly-solutions-berlin-ey5vw004p0cr) — Berlin, Germany - [Engineering Manager](https://feeny.ai/job/engineering-manager-nelly-solutions-berlin-ghs8q6keyve3) — Berlin, Germany - [Business Development Manager:in](https://feeny.ai/job/business-development-manager-in-nelly-solutions-munich-08r3qx63wr1z) — Munich, Germany - [Sales Development Representative - All levels (f,m,x)](https://feeny.ai/job/sales-development-representative-all-levels-f-m-x-nelly-solutions-berlin-zx23m23rap24) — Berlin, Germany - [Senior Forward Deployed Software Engineer](https://feeny.ai/job/senior-forward-deployed-software-engineer-nelly-solutions-berlin-4pczcve228mg) — Berlin, Germany - [Lead Software Engineer - Integrations](https://feeny.ai/job/lead-software-engineer-integrations-nelly-solutions-berlin-43akvd64dh3m) — Berlin, Germany - [Senior Software Engineer, Node.js](https://feeny.ai/job/senior-software-engineer-node-js-nelly-solutions-berlin-r1frrxk2zz01) — Berlin, Germany - [Business Development Manager:in](https://feeny.ai/job/business-development-manager-in-nelly-solutions-cologne-ffkw53dzf9aw) — Cologne, Germany - [Business Development Manager:in](https://feeny.ai/job/business-development-manager-in-nelly-solutions-berlin-kyt9hq161wc9) — Berlin, Germany