CONEXIONHR

ID 4016 – AI Backend / Fullstack Developer

Job Category: Node.js Python
Job Type: Remote
Job Location: Europe

We are the AI-powered B2B CRM and Order Management System built specifically for brands and distributors. Our platform automates B2B sales workflows, shortens sales cycles, and unlocks new revenue streams—turning messy back-office operations into scalable growth engines. We’re backed by top-tier investors and trusted by global distributors, brands, and retailers. Now, we’re entering our next phase of growth—and engineering excellence is at the heart of it.

Who We’re Looking For:
We’re hiring an AI Backend / Fullstack Engineer to build and scale our AI-powered features, working directly with our Engineering and Product leadership team.
This role is foundational in designing, developing, and maintaining the backbone of our AI-driven platform. You’ll build impactful solutions used by real customers and lay the foundation for future innovation.

Qualities We Value:
● Problem-Solver: You thrive on tackling complex technical challenges and delivering practical solutions.
● AI-Expert: Proven experience building real-world AI/ML pipelines and features (semantic search, RAG pipelines, vector search, LLM integration, internal copilots).
● Exceptional Communicator: Clearly articulate technical concepts and collaborate effectively with cross-functional teams.
● Autonomous: Comfortable working independently, owning your projects from conception to deployment.
● Agile & Fast: Experience rapidly building MVPs and iterating based on user feedback.
● Technical Expertise: Deep experience with Node.js, Python, MongoDB, and modern AI frameworks.

What You’ll Do and Own:
● AI Feature Development: Build and enhance core AI capabilities including semantic search, RAG pipelines, vector search, LLM integrations, and internal copilots.
● Backend Engineering: Write and maintain robust, production-quality backend code using Node.js/NestJS, Python, TypeScript, and MongoDB.
● AI Infrastructure: Design, deploy, and manage scalable AI/ML pipelines and and storage/retrieval logic, with vector database solutions (Weaviate, Milvus).
● Testing & Quality Assurance: Develop and maintain comprehensive tests (unit, integration, E2E) using Jest, PyTest, Playwright, and Selenium.
● DevOps & Cloud Management: Deploy, scale, and maintain infrastructure on AWS, ensuring system reliability and scalability (Jenkins, Docker).
● Cross-functional Collaboration: Work directly with product and business teams to define, scope, and deliver impactful features.

Requirements:
● 3+ years of experience in backend/fullstack engineering, ideally in B2B SaaS environments.
● Proven experience developing and deploying AI/ML-driven features and pipelines.
● Expertise in Node.js, NestJS, Python, TypeScript, MongoDB, and vector databases.
● Strong experience with production deployment and cloud infrastructure (AWS/GCP, Docker, Jenkins).
● Demonstrable ability to quickly build MVPs and deliver iterative improvements based on user feedback.
● Excellent communication skills, capable of clearly articulating technical strategies and solutions.
● Comfortable in autonomous roles—self-driven and proactive.

Our Stack:
● Backend: Node.js, NestJS, TypeScript, MongoDB.
● AI: Python, OpenAI, LLMs, vector databases (e.g., Weaviate, Milvus)
● Infrastructure: AWS, GCP, Jenkins, Docker.
● Frontend: Vue (rarely, if you want)
● Testing: Jest, PyTest, Playwright, Selenium.

Why Join Us?
● Fast-growing startup with significant growth opportunities: own your work, influence technology decisions, and scale with us.
● Work with cutting-edge AI technologies and an exceptional, agile engineering team.
● Direct collaboration with founders and decision-makers—no bureaucracy.
● High-impact role shaping the core technology of our innovative product.
● Flexible work, with ownership and autonomy.
● Opportunity to see immediate impact of your work through real users and practical applications.

Benefits:
● 100% remote.
● USD payment.
● 4 weeks of vacations and 10 local holidays paid.

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