Senior Backend Engineer, AI Platform (100% remote-friendly within Spain) at Docplanner

Barcelona, Catalonia, Spain -

Full Time

Start Date

Immediate

Expiry Date

05 Feb, 26

Salary

0.0

Posted On

07 Nov, 25

Experience

5 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

Software Engineering, Python, C#, PHP, Java, Distributed Systems, ML Solutions, Software Architecture, Data Pipelines, Model Orchestration, Prompt Engineering, Growth Mindset, English Fluency

Industry

technology;Information and Internet

Description

Company Description Welcome to the good side of tech 👋 You might have heard about us, but with a different name: Znanylekarz. It all started 10 years ago when we asked ourselves: is anyone in healthcare thinking about patients? We jumped in and we empowered patients by giving them access to leave and read reviews about their visit. We then provided doctors with the technology to manage bookings easily and save time, so they could devote themselves to what they always wanted: treating patients. And today is the day in which we ask you: wanna join us in the next step of making the healthcare experience more human? Docplanner at scale We are leaders in 13 countries so far, and more than 90 million patients trust us every month. 300.000+ specialists believe in us and our product, and so do leading venture capital funds such as Point Nine Capital, Goldman Sachs Asset Management and One Peak Partners. And yet, employing over 2.500 people all over the globe, we managed to keep the startup-mindset we started with over 10 years ago. How does Docplanner Tech fit here? At Docplanner Tech we are a diverse group of over 400 people working in Engineering, Data, and Product teams. We are responsible for building the product for all locations. Many of us have been here for over 5 years, yet we still welcome each new person with great joy and excitement. We could tell you about us, but we will let our reviews on Glassdoor speak for themselves. In case you’d like to see how it feels to be 100% yourself at work, here’s a video of us. And why should you join us? Because it feels good to tell your family and your friends how you made the world a little bit better. You go to bed knowing that what you do matters, and that your talents align with your beliefs. We want to make the healthcare experience more human, and that starts with you being you. We believe that taking the diversity of human experience into account makes a better healthcare experience for all . We’re not just different: we embrace diversity. We will encourage you to come to work your whole self, and that includes not coming to the office at all if you prefer not to, as we're 100% remote-friendly. Job Description Area of Work We’re laying the groundwork for the future of AI at Docplanner—scalable systems, multi-agent architecture, MCP servers and seamless integration into our products. We’re looking for a Senior Backend Engineer with a strong Software Engineering background and AI Engineering experience to join our team. The AI Platform team is a part of the Internal Platform area and nowadays consists of 2 Platform Engineers and 2 Software Engineers. As AI needs are growing, we are intensely growing that team to be “The Magnificent Seven”. The team is accountable for 2 main objectives: Designing, building and maintaining the company's AI infrastructure. Ensuring high availability, scalability, security and cost efficiency. Adopt new technologies like MCP and A2A What are the challenges in the team? Dynamic environment with rapid changes. Both AI technology and business around it are changing super fast, and we need to keep up with our goals. For example, OpenAI announcing Apps SDK changed our quarter goals Working with different technologies. Main backend technologies are C# and .NET , but for many AI projects we are using Python. And all of that connected with big distributed system with multiple services What you’ll do Design and implement scalable systems for AI Agents, MCP, and emerging architectures Adopt new technologies coming up with AI Build internal tools that empower product teams across Docplanner Ensure reliability, security, and cost efficiency of AI infrastructure Work cross-functionally to accelerate AI adoption in our products Qualifications You’re likely a great fit for this role if you Strong software engineering background (Python + C#, PHP, or Java experience) Exposure to distributed systems and managing services at scale Experience building or deploying ML/LLM solutions (e.g., fine-tuning, RAG pipelines, model evaluation, production APIs) Understanding of software architecture and engineering best practices (REST, SOLID, GRASP, GIT, CI/CD, DDD, TDD, Clean, Agile, etc) Familiarity with data pipelines, model orchestration, and prompt engineering Growth mindset and comfort in a fast-changing environment English fluency (B2+) Nice to have Experience with AI/ML tools (LangChain, LlamaIndex, etc.) Knowledge of RAG pipelines and MLOps practices Cloud platform expertise (GCP, AWS, Azure) Exposure to other OOP stacks (.NET, PHP) Nobody ticks all those boxes above, but willingness to learn is strongly valued here! Additional Information Compensation structure A salary adequate to your experience and skills. Flexible remuneration and benefits system via Flexoh, which includes: restaurant card, transportation card, kindergarten, and training tax savings; Share options plan after 6 months of working with us. True flexibility and work-life balance Remote or hybrid work model with our hub in Barcelona; Flexible working hours (fully flexible, as in most cases you only have to be on a couple of meetings weekly); Summer intensive schedule during July and August (work 7 hours, finish earlier); 23 paid holidays, with exchangeable local bank holidays; Additional paid holiday on your birthday or work anniversary (you choose what you want to celebrate). Health comes first Private healthcare plan with Adeslas for you and subsidized for your family (medical and dental); Access to hundreds of gyms for a symbolic fee in partnership for you and your family with Wellhub; Access to iFeel, a technological platform for mental wellness offering online psychological support and counseling. Keep growing with us Free English classes. We promote and embrace equal opportunities in our hiring process, and also every day at work. When you apply for our roles you receive equal treatment regardless of age, disabilities, gender reassignment, marital or civil partner status, pregnancy or parental status, race, color, nationality, ethnic or national origin, religion or belief, sex, sexual orientation or any other dimension of human difference. If you require additional support in your recruitment process, we kindly encourage you to let us know. Behind those words you’re reading, there’s a person (hi!) who already helped a candidate by adapting the interviews, and now we’re lucky to have this person with us. So, even if you’ve never asked for it before, may this serve as a sign that, now, you can do so. We can only truly be equal if we adapt to each other. “We believe all humans, in all their beautiful diversity, should have equal rights, dignity and respect. Period.” Mariusz Gralewski, CEO

Responsibilities

Design and implement scalable systems for AI Agents and emerging architectures. Ensure reliability, security, and cost efficiency of AI infrastructure.