# Senior AI Platform Engineer (TypeScript, LLMs & Data Systems)

> Gramian Consulting Group · Poland (Remote) · Contract · Posted 2026-06-18

**Workplace:** remote

**Department:** Partnerships

## Description

**About Us**

Gramian Consultancy is a boutique consultancy specializing in IT professional services and engineering talent solutions. With a strong background in software engineering and leadership, we help companies build high-performing teams by matching them with professionals who truly fit their needs.

**Role overview**

Our client is building AI-native products that transform unstructured information into reliable, structured, and actionable data. Their platform combines large language models, multimodal AI, retrieval systems, and evaluation frameworks to power data-intensive workflows and user-facing experiences.

We are looking for a hands-on Senior AI Platform Engineer with strong expertise in **TypeScript**, **backend systems**, **LLM integrations**, and **data pipelines**. This is a full-stack role with a clear backend focus, where you will design and build production-grade AI systems that leverage LLMs, vision models, retrieval workflows, and evaluation frameworks. The ideal candidate is comfortable owning projects end-to-end, from problem definition through deployment and operational excellence.

**CONTRACT:** Long-term contractor assignment

**COMMITMENT:** Full-time with minimum 4 hours overlap with New York working hours

**LOCATION:** Remote

**PROCESS:** Technical Interviews + Practical Evaluation

**NOTES: Previous experience working in BigTech company (Amazon, Google, Meta, Apple, Microsoft, Netflix, …) is mandatory!**

### **Responsibilities**

-   Design and build **AI-powered backend services**, APIs, and data pipelines
-   Develop systems for **LLM-powered extraction**, classification, and structured reasoning
-   Build workflows that ground AI outputs in **trusted data** and verifiable evidence
-   Implement **retrieval**, context assembly, and answer-grounding systems
-   Design and maintain evaluation datasets, scoring workflows, and regression testing frameworks
-   Develop internal tools for reviewing and validating AI-generated outputs
-   Build reliable production systems with strong **observability**, monitoring, and failure handling
-   Collaborate on React-based interfaces for operational and reviewer workflows
-   Optimize AI workflows for performance, cost, reliability, and scalability
-   Work closely with product and engineering stakeholders to deliver production-ready solutions

## Requirements

-   7+ years of professional software engineering experience
-   Strong experience building **backend services**, APIs, and data pipelines
-   Advanced proficiency in **TypeScript** and **Node.js**
-   Production experience integrating **LLMs**, multimodal models, or AI APIs
-   Experience building systems that use **retrieval**, structured context, or grounded AI outputs
-   Experience creating **evaluation frameworks**, scoring systems, and regression checks for AI applications
-   Working experience with **React**
-   Experience with **PostgreSQL** and modern cloud deployment environments

## Apply

[Apply at Gramian Consulting Group](https://apply.workable.com/gramian/j/9236B31F56/apply)

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