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## Principal Engineer in Technical Fellow OfficeApplyremote type: Hybridlocations: Remote, New York, USAtime type: Full timeposted on: Posted Yesterdaytime left to apply: End Date: November 30, 2026 (30+ days left to apply)job requisition id: JOBREQ-2616258Join the Technical Fellow Office to solve hard, ambiguous problems, set the bar for technical excellence, and shape how the broader engineering organization builds — across teams and beyond our immediate department. You will work at the intersection of large-scale distributed systems and the frontier of agentic AI, architecting the platforms, workflows, and guardrails that let autonomous and human-in-the-loop AI systems do real work at scale.If you want to work where cutting-edge AI meets production-grade engineering — and influence how an entire division builds — this is that role.## ****What You'll Do***** Architect & build: Lead the design of critical systems — agentic pipelines, orchestration platforms, and the services around them — running design reviews and contributing hands-on to development.* Ship agentic systems: Productionize LLM-powered workflows — multi-agent orchestration, tool use, retrieval/knowledge systems, and human-in-the-loop control planes that are reliable, observable, and cost-aware.* Define quality for AI: Build the evaluation harnesses, benchmarks, and automated quality gates that measure and enforce quality in non-deterministic systems, and catch regressions in agent and model behavior.* Incubate new ideas: Rapidly prototype POCs that validate strategic bets, especially at the intersection of AI and existing platforms.* Advise & de-risk: Guide complex technical decisions, help teams adopt AI pragmatically, and avoid the failure modes of hype-driven design.* Surface risks: Identify blind spots, technical risks, and inefficiencies — including the novel risks of autonomous systems — and proactively drive solutions.* Set the technical bar: Write exemplary code across the ecosystem, and raise the level of engineering through architectural reviews, mentorship, and knowledge sharing across teams.## ****What We're Looking For***** 10+ years of hands-on engineering in software development, system design, or architecture.* Applied AI / agentic engineering: Real experience with modern LLMs and agentic frameworks — prompt/context engineering, tool use, RAG, orchestration, and evaluation — including the sharp edges (latency, cost, reliability, non-determinism, safety).* Production AI systems: A track record of taking AI/ML-driven features from prototype to production with proper evaluation, monitoring, and guardrails.* Distributed systems & data: Strong background in scalable, fault-tolerant services and in streaming/pipeline technologies (Kafka, Flink, Spark).* Cross-functional impact: Ability to drive alignment and technical decisions across teams, and to mentor engineers toward better technical decision-making. *This range reflects the anticipated base salary for this position. Beyond base salary, this role may be eligible for equity awards and participation in our company incentive plans (such as annual discretionary bonuses or sales commissions). The final offer amount will depend on several factors, including geographic location and the candidate’s relevant experience, professional background, and skill set.* **Benefits** At Unity, we want our team members to thrive. We offer a wide range of benefits designed to support well-being and work-life balance. Please note: Benefits eligibility, specific offerings, and coverage vary based on the country and employment status. While specific benefits vary, here are some of the ways we strive to take care of our eligible team members globally: Comprehensive health, life, and disability insurance | Commute subsidy | Employee stock ownership | Competitive retirement/pension plans | Generous vacation and personal days | Support for new parents through leave and family-care programs | Office food snacks | Mental Health and Wellbeing programs and support | Employee Resource Groups | Global Employee Assistance Program | Training and development programs | Volunteering and donation matching program **Life at Unity** Unity [NYSE: U] is the world’s leading game engine, powering play for more than 3 billion consumers each month. The top mobile games in the world, the most played PC indie titles, the most innovative console games, and virtually all of the top XR and Web Games are developed, deployed, and grown in Unity. Unity also enables teams across industries like automotive, manufacturing, and healthcare to design, simulate, and collaborate in 3D — closing the gap between ideas and reality. For more information, please visit www.unity.com. *Unity is a proud equal opportunity employer. We are committed to fostering an inclusive, innovative environment and celebrate our employees across age, race, color, ancestry, national origin, religion, disability, sex, gender identity or expression, sexual orientation, or any other protected status in accordance with applicable law. Our differences are strengths that enable us to support the growing and evolving needs of our customers, partners, and collaborators.* *If you have a disability that means there are preparations or accommodations we can make to help ensure you have a comfortable and positive interview experience, please fill out* *this form* *to let us know.* *This position requires the incumbent to have a sufficient knowledge of English to have professional verbal and written exchanges in this language since the performance of the duties related to this position requires frequent and regular communication with colleagues and partners located worldwide and whose common language is English. This posting is intended to fill an existing vacancy, and we are committed to providing applicants with updates throughout the hiring process in accordance with applicable law.* *Headhunters and recruitment agencies may not submit resumes/CVs through this website or directly to managers. Unity does not accept unsolicited headhunter and agency resumes. Unity will not pay fees to any third-party agency or company that does not have a signed agreement with Unity. Your privacy is important to us. Please take a moment to review our**Prospect* *and**Applicant* *Privacy Policies. Should you have any concerns about your privacy, please contact us at DPO@unity.com.* #J-18808-Ljbffr