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Software Engineer - Backend

Job type: Full Time · Department: Engineering · Work type: Remote

Manises, Comunidad Valenciana, Spain; Madrid, Community of Madrid, Spain; Barcelona, Catalonia, Spain

Software Engineer - Backend

Location: Spain/ Europe- Remote

Team: Engineering

Welcome to Maisa - Making AI Accountable!

Our agentic process automation platform helps enterprises automate complex, decision-heavy processes that traditional automation can’t handle and GenAI can’t be trusted with. 

We enable organizations to scale operations, resist hallucinations, and bring end-to-end visibility and control to your most complex processes.

Powered by a new kind of computing platform, Maisa combines AI-driven problem solving with programmatic execution, so every action is reliable, auditable, and built for enterprise scale.

About the role… 

We're seeking a Backend Engineer to build and scale our AI-driven Knowledge Processing Unit (KPU). You'll join our core engineering team working on event-driven microservices that power enterprise AI applications. This role is critical to delivering the reliable, auditable automation that makes Maisa's platform genuinely trustworthy for enterprise deployment.

What you’ll do… 

You'll develop and maintain the scalable backend services that power our agentic automation platform:

  • Build APIs and backend services using Go (our primary language), implementing hexagonal architecture patterns

  • Design and optimize event-driven architectures with Apache Kafka as the microservices communication backbone

  • Work across PostgreSQL, MongoDB, and DocumentDB to ensure data consistency and performance

  • Contribute to our Docker and Kubernetes orchestrated microservices ecosystem

  • Implement gRPC, HTTP, and WebSocket protocols for service communication

  • Collaborate with AI teams to integrate LLM capabilities and reasoning engines

  • Work with GitHub Actions CI/CD pipelines and monitoring tools (Grafana, Prometheus)

  • Optimize systems for high-concurrency, auto-scaling, and enterprise reliability

What you’ll bring… 

  • Strong demonstrable commercial experience in backend development in modern cloud applications

  • Strong proficiency in Go or Python

  • Hands-on experience with Apache Kafka and event-driven architectures

  • Solid understanding of SQL/NoSQL databases and data consistency patterns

  • Experience with Docker and Kubernetes orchestration

  • Knowledge of microservices architecture and distributed systems

  • Experience with CI/CD pipelines and modern development workflows

Why join Maisa! 

You will be joining one of Europe’s most exciting early-stage AI start-ups, where you’ll have the opportunity to work with cutting-edge Agentic Process Automation that’s reshaping how enterprises approach AI deployment. You will get to directly influence how major multinational organizations transform critical business processes, working on genuinely differentiated technology that solves real enterprise AI challenges.

Following our recent $25m Seed Round, backed by leading Venture Capital firms including Creandum, Forgepoint, NFX, and Village Global, we’re scaling quickly and realising significant enterprise traction. This is your opportunity to help solve real AI enterprise challenges, working alongside deep technical and industry experts, where you will be challenged daily and expedite your learning and development.  

Maisa is committed to Equal Employment Opportunity through attracting and retaining a complementary team of employees and building an inclusive environment for all.

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