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Alion

Full Stack Engineer (GenAI)

EU

August 29, 2026 at 5:49 AM

✨ AI summary

Location

  • Bucharest, Romania

Languages

  • C#
  • JavaScript (Node.js)
  • Python
  • TypeScript

Frameworks

  • .NET Core
  • Angular
  • LangChain

Cloud Services

  • AWS
  • Kubernetes
  • Terraform

Databases

  • MongoDB
  • PostgreSQL
  • MySQL
  • Pinecone (vector DB)
  • Weaviate (vector DB)
  • Milvus (vector DB)

Experience Level

  • 4-8 years software development
We're looking for a Senior Full-Stack Engineer who can build large-scale, cloud-native systems and integrate Generative AI (LLMs, embeddings, vector DBs, RAG) into real-world security automation products. You'll design, develop, and scale high-performance SaaS features used globally by security teams handling millions of alerts per day.

Responsibilities

  • Architect and build major subsystems for the next-gen AI-driven security automation platform.
  • Integrate GenAI components (LLMs, embeddings, vector DBs) into orchestration workflows for faster incident triage.
  • Build intuitive APIs and AI-first integrations with third-party ecosystems.
  • Develop natural-language interfaces, intelligent summarization, and auto-remediation features using GenAI.
  • Convert AI/ML/GenAI proofs-of-concept into production-grade features.
  • Drive engineering best practices across full-stack development, MLOps, testing, and responsible AI.
  • Mentor junior engineers and collaborate with global cross-functional teams.

Requirements

  • 4-8 years of software development experience, with strong exposure to distributed systems.
  • Strong in algorithms, data structures, system design, and architectural patterns.
  • Hands-on expertise in C#/. NET Core, NodeJS, TypeScript, Angular, Python.
  • Experience with SQL/NoSQL and vector databases.
  • Proven experience building GenAI/LLM-based applications (prompt engineering, RAG, fine-tuning).
  • Knowledge of real-time systems (WebSockets, SignalR).
  • Strong AWS + Kubernetes + Terraform experience.
  • Familiarity with MLOps pipelines and observability for GenAI systems.
  • Excellent communication and collaboration skills.

Nice To Have

  • Cybersecurity or security automation experience.
  • Experience with LLMOps, responsible AI, or AI governance.
  • Open-source contributions in AI/GenAI.

Tech Stack

  • Backend: C#, . NET Core, Node.js, Python.
  • Frontend: TypeScript, Angular.
  • Databases: MongoDB, Postgres, MySQL, Vector DBs (Pinecone / Weaviate / Milvus).
  • Cloud & Infra: AWS, Kubernetes, Terraform.
  • AI/GenAI: LangChain, OpenAI/Anthropic APIs, Hugging Face, RAG pipelines, fine-tuning, MLOps.