Senior Software Engineer (Node.js/TypeScript)

About the Position

We are looking for a Senior Software Engineer (Node.js/TypeScript) to join our AI Team working on a cloud-based SaaS product in the oil and energy domain. You will build AI-powered product functionality, integrate LLM-based agents, and develop reliable backend solutions that support meaningful business workflows.

Responsibilities

• Developing production-grade backend services using Node.js and TypeScript;
• Building user-facing AI features and internal tooling with React;
• Developing and integrating LLM-powered agents, including tools, memory, and orchestration flows;
• Building and evolving REST or gRPC APIs;
• Designing and optimizing MongoDB schemas and queries;
• Delivering SaaS features from technical scoping to production release;
• Ensuring quality through testing, CI/CD, containerization, and code review;
• Contributing to technical decisions within the oil and energy domain.

Requirements

• 5+ years of experience with Node.js and strict TypeScript;
• Experience with React and building or integrating LLM-powered agents using LangChain.js, Vercel AI SDK, or similar tools;
• Understanding of agent tool use, memory, and orchestration patterns;
• Experience with REST or gRPC APIs and OpenAPI contracts;
• Practical knowledge of MongoDB, including schema design, indexing, and aggregation pipelines;
• Experience delivering features in cloud-based SaaS products;
• Strong testing skills with Vitest or Jest;
• Experience with GitHub Actions, Docker, Docker Compose, and Bash;
• Familiarity with modern development tooling, such as yarn, Vite, Turbopack, or esbuild;
• Strong ownership, communication, and problem-solving skills.

Nice to Have

• Experience with Google Cloud Platform, particularly Cloud Run, Google Cloud Storage, or Pub/Sub;
• Familiarity with agent interoperability protocols such as MCP or A2A;
• Experience with context engineering, including prompt structuring, context windowing, and retrieval strategies;
• Experience with RAG, embeddings, or vector databases;
• Previous experience working with oil, energy, or other domain-heavy SaaS products.

We Offer

• A real opportunity to influence the product, architecture, and technical decisions;
• Direct communication with C-level management, without unnecessary bureaucracy;
• Remote-first environment;
• Long-term and enjoyable cooperation;
• 20 paid working days of vacation per year;
• 5 paid undocumented sick days;
• Official public holidays as days off;
• Personal legal support;
• English classes;
• Team-building events and a friendly, supportive atmosphere.

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