Senior Backend Engineer, NodeJS

🔥 0 minutes ago

🇪🇸 Spain – Remote

⏰ Full Time

🟠 Senior

🔙 Backend Engineer

👻 Ghost score 24%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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MEDvidi

WebsiteLinkedInAll Job Openings

201 - 500 employees

Founded 2019

🏥 Healthcare

⚕️ Healthcare Insurance

💰 $2.8M Seed Round on 2022-09

Healthcare • Healthcare Insurance • Mental Health

MEDvidi is an online mental health treatment center aiming to make professional care accessible and affordable for everyone. The healthcare experts at MEDvidi provide personalized treatment plans for a variety of mental health conditions, including ADHD, anxiety, depression, insomnia, and OCD. With services that include initial assessments, ongoing support, and medication management through virtual consultations, MEDvidi seeks to enhance mental wellness with compassionate care tailored to individual needs.

📋 Description

• Design and build backend architecture for AI-powered automation systems • Integrate and scale LLM-based product features with AI engineers and product teams • Implement and evolve agent-based systems, including ReAct and supervisor-agent models • Optimize RAG pipelines and context enrichment using structured and unstructured data • Develop robust APIs for internal services and external integrations • Ensure observability, monitoring, and alerting using tools such as Grafana and OpenSearch • Participate in code reviews and architecture discussions • Maintain high-quality technical documentation for newly designed systems and APIs • Build production-grade systems that automate clinical and operational workflows within MEDvidi's telemedicine platform • Collaborate with AI engineers, product teams, and cross-functional stakeholders

🎯 Requirements

• 8+ years of commercial backend development with Node.js in product companies, preferably SaaS • Deep understanding of complex backend systems end-to-end • Strong experience designing backend architectures and technical solutions • Experience with system decomposition, scalability trade-offs, long-term maintainability, and technology choices • Proven track record building scalable, high-performance backend systems and robust APIs • Understanding of data flows, failure modes, and performance bottlenecks • Hands-on experience integrating LLMs into production systems • Experience designing and implementing multi-agent AI workflows in production • Practical experience with modern AI frameworks • Experience designing and optimizing RAG pipelines, including embeddings, vector databases, retrieval strategies, ranking, and chunking • Strong prompt engineering skills, including structured outputs, schema validation, and evaluation-based iteration • Understanding of LLM infrastructure in production environments, tracing, observability, evaluation frameworks, safety mechanisms, guardrails, and performance/cost optimization • Hands-on experience with PostgreSQL and AWS, including CDK, Lambda, API Gateway, and ElastiCache • Good understanding of observability and debugging with Grafana, OpenSearch, or similar • Strong engineering culture involving testing, CI/CD, reliability, and technical ownership • Product-oriented mindset • Proactive AI enthusiast mindset • Fluent Russian • English B2+ • Experience with medical/healthcare AI or regulated environments is a plus • Experience with MCP in Node.js is a plus

🏖️ Benefits

• Competitive compensation package • Health insurance after the probation period • Sports and wellness compensation • Personalized English lessons via Preply • Clear growth paths • 19 paid vacation days annually • 4 additional wellness days each year • Paid sick leave for the first 5 working days • Thoughtful gifts for key life events • Offline corporate events • Fully remote long-term collaboration under a B2B model