Senior AI Engineer (with Backend & Platform experience)

Job description

# Senior AI Engineer (with Backend & Platform experience) > 1GLOBAL · Berlin, Germany (Hybrid) · Full-time · Posted 2026-09-08 **Workplace:** hybrid **Department:** Technology ## Description **About Us ** **1GLOBAL** is a technology-driven global mobile communications provider, delivering connectivity solutions to enterprises and consumers across 190+ countries. We operate our own global mobile core network, in-house developed eSIM technology, and hold telecom licenses as a fully regulated MVNO in 12 countries and a regulated operator in 28 additional markets. We serve the world’s leading banks, enterprises, and digital-first businesses, connecting more than 70 million people and devices globally. 1GLOBAL is profitable, with 2025 revenues exceeding US$200 million and strong cash flows funding continuous investment in platform innovation and global expansion. Headquartered in the Netherlands, with R&D hubs in Lisbon, Berlin, and São Paulo, our team of close to 500 experts across 15 countries is united by a single ambition: to redefine global mobile connectivity through technology, scale, and execution excellence. **About the Team** We are building a new AI team within Engineering, tasked with driving AI adoption across 1GLOBAL. The team’s mission is to make AI a practical, governed, and well-supported capability for every part of the company, from the engineers writing our software to the operations teams running the business. Beyond the internal platform, the team will contribute AI-powered capabilities to our commercial product lines. This is a foundational hire. As one of the first engineers on the team, you will work alongside a dedicated product manager and engineering team lead to set the technical direction, make early architectural decisions, and build the systems that the rest of the AI function will grow on. ** About the Role ** - Desing and build central AI platform development and governance: AWS Bedrock fronted by an LLM gateway (LiteLLM, Portkey, or similar). Token budgets, rate limits, key management, guardrails, audit logging, observability, cost controls. - Engineer the technical architecture of 1GLOBAL’s internal AI tools and MCP servers, including RAG pipelines, vector search, LLM integration, and conversational interfaces. - Build secure ingestion and indexing pipelines for internal knowledge sources (Confluence, SharePoint, document repositories, internal APIs) with appropriate access controls. - Develop backend services and APIs that expose AI capabilities to internal users and, over time, to product teams building customer-facing features. - Establish engineering standards for the AI function: testing, deployment, monitoring, and model evaluation frameworks. - Own the full development lifecycle from requirements through production monitoring, with a bias toward shipping and iterating. ## Requirements **About You ** - **5+ years of software engineering experience, with meaningful recent work integrating LLMs into real systems**. Deep traditional ML or model-training background is not required. - Strong generalist backend engineer. Python proficiency is expected. You’re comfortable building a full-stack internal tool end-to-end and shipping it without waiting for permission. - Hands-on experience with AI gateways or model routing layers such as LiteLLM, Portkey, or AWS Bedrock — including token limits, guardrails, observability, and cost management. - Practical experience building MCP servers, or strong fluency with similar tool-calling and agent integration patterns. MCP specifically is a plus. - Power user of AI coding agents (Claude Code, Codex, or similar). You can define skills, workflows, and standards that make other engineers more effective — not just use the tools yourself. - Working knowledge of RAG, vector search, and LLM evaluation. You understand the trade-offs and can build a solid pipeline. Depth in this area is a plus, not a prerequisite. - Comfortable with CI/CD, containerization (Docker, Kubernetes), and infrastructure-as-code. - Familiarity with data security practices - PII handling, access controls, data classification. Experience in regulated environments (telecommunications, financial services, ISO 27001) is an advantage. - Strong communicator. Much of this role is making other engineers and non-technical teams more effective. You can explain technical trade-offs clearly. Fluent in English. - Self-directed and comfortable with ambiguity. You will be shaping a function, not joining a mature one. ## Benefits **Why 1GLOBAL? ** - Foundational Role: Build the AI function from the ground up, setting architectural direction and engineering culture for everything that follows. - Growth Opportunities: Advance your career in one of the fastest growing telecommunications companies, expanding over 100% year-on-year. - Talented Team: Collaborate with experienced founders, a strong senior management team, and driven individuals across 15 countries. - Dynamic Environment: Fast-paced, innovation-driven workplace where every contribution counts. - International Reach: Opportunities to work across 1GLOBAL offices worldwide as you grow within the company. _ 1GLOBAL is an equal opportunity employer. We value your character as much as your talent. Diversity drives our innovation, and we offer a collaborative, dynamic, and international work environment._ ## Apply [Apply at 1GLOBAL](https://apply.workable.com/1global/j/019563FCC9/apply) --- Powered by [Workable](https://www.workable.com)