> Markdown version of [/jobs/ext/3876529-ai-engineer](https://www.wearedevelopers.com/jobs/ext/3876529-ai-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # AI Engineer - **Company:** T12 TECHNOLOGIES LLC - **Location:** Baltimore, MD, United States (Remote available) - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Cloud Computing, Cyber Security, Monitoring of Systems, Information Extraction, Python (Programming Language), Netsuite, SAP Integration Solutions, Large Language Models, Prompt Engineering, Suitescript, Claude, Restful APIs - **Published:** October 22, 2026 - **Apply:** https://www.thejobnetwork.com/job/7ee0c2a7-61b7-4aa5-93f5-d52eeefcee94/ai-engineer ## About the Role * 2+ years building production workflows on LLM APIs - Anthropic Claude strongly preferred - including prompt engineering, structured extraction, and confidence scoring. * Strong Python and REST API integration; comfort working against a third-party ERP you did not build. * Document extraction at production quality - invoices, forms, contracts, or similar semi-structured documents. * Demonstrated experience building evaluation sets and regression suites for non-deterministic output; you can tell a genuine accuracy gain from noise. * Structured output and schema validation with real handling for malformed or low-confidence results. * Disciplined prompt iteration against real data rather than synthetic happy-path examples. * Legal authorization to work in the United States as an independent contractor. Preferred * SuiteScript 2.x or prior NetSuite / ERP integration experience. * AP, finance, or accounting document processing background. * OCR and document-capture pipelines. * Experience on a team where an architect owns the design and you own the build. ## Description T12 Technologies LLC is a Maryland-based technology services firm delivering cloud, AI and automation, cybersecurity, contact center, and back-office modernization to federal, state, healthcare, and commercial clients. We are staffing a finance automation program for a commercial client: an accounts payable and vendor payment build on Oracle NetSuite, with an AI-enabled invoice extraction layer in Texas. You are the builder. Working to the architect's design, you construct the Claude workflows that read invoices, extract and validate line-level data, apply GL coding rules, and route approvals - then tune them against live invoice volume during a parallel-run pilot until they hold up on real edge cases. This role also owns validation: there is no separate QA engineer on this program, so building the evaluation harness and proving accuracy against ground truth is part of the job. Scope of work * Invoice automation build. Build Claude invoice intake, extraction and GL coding workflows, tuned against the client's historical coding patterns and vendor mix. * Confidence tiers. Configure auto-approve versus exception routing and implement human-in-the-loop thresholds for high-value transactions. * Prompt engineering. Author, test and version the prompt library covering coding, duplicate rationale, exception summaries and anomaly analysis. * Evaluation harness. Build ground-truth sets from historical invoices, accuracy scoring, and regression checks that run on every change. * Validation evidence. Validate extraction and coding accuracy against agreed targets and document the results as acceptance evidence. * Monitoring automation. Build Claude-assisted analysis and duplicate saved searches, producing investigation summaries and disposition drafts. * Reporting workflow. Build a budget-versus-actual variance commentary workflow for the finance team. * Go-live. Support cutover, capture baseline metrics, and participate in post-implementation hypercare.