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

Area of Work

Were laying the groundwork for the future of AI at Docplannerscalable systems multi-agent architecture MCP servers and seamless integration into our products. Were 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 companys 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# but for many AI projects we are using Python. And all of that connected with big distributed system with multiple services

What youll 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 :

Youre 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 youre reading theres a person (hi!) who already helped a candidate by adapting the interviews and now were lucky to have this person with us. So even if youve 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

Remote Work :

Yes

Employment Type :

Full-time