Senior Internal GenAI engineer

You'll build and ship custom MCP servers independently, run structured evaluations of new AI tooling, and produce the skills, prompts, and documentation that help colleagues across the business get real value from their AI tools. This is a hands-on engineering role with a strong enablement flavour - you're expected to own features end-to-end, proactively raise quality issues, and contribute to the patterns the wider team builds against. You'll work closely with the Lead GenAI Engineer, taking on meaningful parts of larger projects with a genuine degree of autonomy.

WHAT YOU'LL DO

· Build and maintain custom MCP servers in Node.js (TypeScript) or Python, working independently - connecting our SaaS systems (Confluence, Jira, Salesforce, ServiceNow and others) to Claude Desktop, ChatGPT Enterprise, Cowork, and Codex - taking full ownership of auth, error handling, and observability.

· Run structured evaluations of new releases across our AI tool stack - designing test cases, scoring outputs against defined rubrics, and producing clear written recommendations for the team.

· Write skills, prompts, and documentation that turn raw tool capability into reusable patterns for non-technical colleagues; own specific documentation areas from first draft through to ongoing maintenance.

· Contribute to Copilot Studio agents and Microsoft Foundry pipelines, exercising sound architectural judgement between MCP-first and Copilot-first approaches depending on the use case.

· Support security and platform reviews for new tooling - assist with DPIA documentation, data-residency checks, and access-control reviews alongside senior engineers.

· Own a share of #ai-help triage, systematically converting recurring questions into FAQ entries, skill updates, or targeted MCP improvements rather than answering the same question twice.

· Contribute a developer's perspective to product reviews and feature enablement decisions as our AI suite evolves - helping the team stay grounded in what's practical to build, maintain, and scale.

Mid (2-4 years relevant experience), Essential

· 2-4 years building production software in Python and/or Node.js (TypeScript or JavaScript).

· At least one demonstrable AI integration you've shipped - an MCP server, Copilot Studio agent, custom GPT, Claude skill, or comparable LLM tool that real users have relied on.

· Working familiarity with the tools we operate - you can articulate the differences between Claude Desktop's skill model, Copilot Studio's plugin model, and the Codex / agentic-coding surface, and have used several in anger.

· Comfortable owning a feature end-to-end - scoping, building, testing, documenting, and shipping - with a track record of doing so without needing to be chased.

· Confident on a developer's command line: git, npm/pnpm or pip/uv, REST/HTTP debugging, CI/CD basics, and reading error logs without guidance.

· Clear written communicator - your PRs, design notes, and documentation pages are easy to follow by someone who wasn't in the room.

Nice to have

· Familiarity with at least one cloud platform (Azure preferred) and identity / auth patterns (OAuth 2.0, Entra ID, Okta, SSO).

· Experience with structured eval tooling - promptfoo, RAGAS, LangSmith, Braintrust, or a comparable harness.

· Light data skills - pandas, SQL, or basic analytics to support evaluation work.

· Exposure to regulated-industry constraints such as data residency, model-output governance, or DPIA processes.

· Public-facing artefacts (GitHub projects, blog posts, conference talks) that demonstrate your thinking about AI tooling.

 LexisNexis ist ein führender Anbieter intelligenter Rechtsinformation in den Bereichen Steuern, Recht und Wirtschaft. Wir bieten und entwickeln Lösungen und Services, welche die Arbeit unserer Kund:innen schneller, einfacher und produktiver gestalten. 

Als Teil des Business Systems & Technology Teams von LexisNexis Österreich stellen Sie den reibungslosen Ablauf der Geschäftsprozesse durch unsere Business Systeme sicher. Gleichzeitig tragen Sie dazu bei, dass wir unsere Systeme laufend an die sich ändernden Geschäftsprozesse anpassen und weiterentwickeln.