Homeoffice Senior Full Stack Software Engineer (Python) en Dotmatics

What do we need

We are seeking a Senior Full Stack Engineer with advanced python skills to join our team building and advancing  the Luma platform an AI-Native Multimodal Research Platform for Scientific Intelligence. A platform that helps customers analyze and configure data within their system. This role offers the opportunity to work on cutting-edge AI/ML technology, architecting scalable microservices, and delivering production-ready systems that integrate with enterprise data platforms. You'll be working in a collaborative, agentic coding environment where modern development tools support your workflow, enabling rapid iteration while maintaining high code quality standards.

In this role you will get to

Development & Implementation

• Lead and execute the design and implementation of core workflow orchestration and tooling features, including automated tasks and background processes.
• Build scalable FastAPI services with well-defined RESTful APIs and real-time streaming endpoints.
• Create modular, reusable service components with strong authentication, error handling, and pagination patterns.
• Develop and guide React frontend components for real-time interactions and data visualization.
• Implement multi-tenant architecture with secure isolation, resource boundaries, and long-term scalability.
• Provide technical guidance to other engineers during implementation, ensuring high-quality, maintainable solutions.
• Evaluate risk when implementing new features or refactoring, and propose safe rollout strategies.
• Design and implement AI agent workflows and tooling using LangChain/LangGraph with sophisticated tool orchestration

Architecture & Design

• Lead architectural design work using clean architecture, dependency injection, and clear separation of concerns.
• Architect microservices with reliable communication patterns (including Dapr or similar).
• Plan, evolve, and optimize PostgreSQL schemas with a focus on performance, tenant isolation, and extensibility.
• Define secure subprocess isolation patterns for credential and environment separation.
• Design stable, versioned API contracts and ensure backward compatibility across services.
• Anticipate long-term system risks and scaling challenges; propose forward-looking strategies and solutions.
• Influence architectural direction across teams, helping bring clarity and structure to ambiguous problems.

Quality & Operations

• Write comprehensive automated tests using pytest and Jest, including integration and behavior-driven tests.
• Implement structured logging, correlation IDs, and observability patterns to ensure system clarity and operability.
• Contribute to and improve CI/CD pipelines with automated testing, linting, and deployment workflows.
• Set up effective monitoring and alerting for production systems.
• Lead or support critical incident resolution with calm, context-driven decision-making.
• Drive platform-wide improvements in performance, reliability, and technical quality.
• Exercise independent judgment in methods, techniques, and evaluation criteria to ensure robust outcomes.

Collaboration & Documentation

• Document architectural decisions, engineering patterns, and approaches that become long-term references for the team.
• Provide approach summaries and technical proposals before major implementations to ensure alignment with product and engineering partners.
• Participate in planning and estimation, applying deep technical judgment and strong product awareness.
• Mentor engineers, raise team capabilities, and guide others through complex engineering workflows (feature branches, PRs, ticket management).
• Build relationships across engineering and product groups, influencing roadmaps and cross-team initiatives.
• Communicate risks, challenges, and opportunities proactively and clearly to stakeholders.

We are looking for people who have 10+ years of professional software development experience, including significant experience owning and delivering large-scale technical systems. You should bring the ability to design durable architectures, independently lead high-impact engineering efforts, and mentor other engineers while maintaining exceptional coding standards. You should enjoy architecting clean, resilient services, solving complex systems problems, and shaping long-term technical direction for the areas you support.

The key skills we are looking for

Python & Backend

• Expert-level Python 3.11+ with deep understanding of async/await, type hints, and modern Python best practices.
• FastAPI experience building production RESTful APIs, streaming endpoints (SSE), and async request handling.
• Strong PostgreSQL expertise (including performance tuning and schema design) and SQLAlchemy.
• Strong understanding of dependency injection, clean architecture, and functional programming concepts.
• Experience designing and scaling microservices in production environments.
• Ability to assess engineering risk, propose rollout strategies, and make high-impact architectural decisions.

Frontend

• React & TypeScript with modern hooks and state management patterns (Redux/Context).
• Experience with Webpack Module Federation and micro-frontend architectures.
• Ability to design responsive, maintainable UI components using SCSS/CSS.
• Familiarity with Jest for robust frontend testing practices.

You may also have

• Production Kubernetes experience with Helm charts and orchestration
• Experience with Databricks or similar cloud data platforms 
• LangChain/LangGraph production implementations
• Model Context Protocol (MCP) integration
• React micro-frontends with module federation
• Dapr or similar service mesh frameworks
• Multi-tenant SaaS application development