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Thomson Reutersproducts power the professionals who are shaping the world.Ourplatforms drivelegal,tax,accountingand audit products, includingCloud Audit Suite-a connected set of products spanning Engagement Manager, Guided Assurance, and Confirmation.As a Principal Software Engineerfor Cloud Audit Suite,you willbe the technical architect and hands-on design leader for ourproduct platforms, integrating multiple products and technology stacks.You will also help drive our shift to an engineering-led, AI-native organization,one where AI writes much of thecodeand engineers stay in the loop to provide judgment, architecture, and direction where it matters most. About the role: Own thearchitecture, systemdesignand AI strategy: You will be the principal engineer responsible for thearchitecture and system design of Cloud Audit Suiteandnewintegrationsto Confirmation andCoCounselAudit viaagents,APIs, MCPconnectionsand shared components and repositories.
- Drive AI strategyfor Cloud Audit Suite and help deliverthe company's AIstrategy.Set the technical direction for how we build MCP servers, design agents, find novel uses of LLMs, run experimentation, andstand upscalablesolutions.Your decisions will influence multiple product lines, not just a single feature.
- Work at real production scale: Build and evolve systems thatoperateover millions of documents,structured and unstructureddata,audit compliance rules, and thousands of concurrent AI interactions from accountants doingtimesensitivework.
- Small teams, big surface area:Interact and lead across several teams of engineers, product, UX design and AI Labs partners to research,designand ship products quickly,with direct access to product leadership and customers.
Whatyou'lldo: Technical leadership andcrossfunctionalinfluence
- Partner with theCoCounselAudit Principal Engineer todeterminethe best ways to integrate Cloud Audit Suite (CAS) andCoCounselAudivia MCP servers and tools, shared APIs, and agent-to-agent (A2A) integrations.
- Leadmultiquarterinitiatives that cut acrossproduct engineering,product,labs, UX designand infrastructure/operations teams.
- Mentor staff and senior engineers, raising the bar on system design, code quality, and AI-native engineering practices,including AI-assisted and AI-generated development with humans in the loop, across the org.
- Be the expert in new model capabilitiesand scalable AI integration strategies, collaborating closely with AI/ML engineers, researchers, designers, and PMs to translate industry improvements into reliable,userfacingworkflows that accountants trust.
- Help shape the team's roadmap, technical strategy, and engineering culture - from experimentation practices todesign, coding,testing, rollout,supportand postmortems.
Design and ownAIfirstbackend systems
- Own the end-to-end architectureanddesign ofbackend services (C#/.NET,Python,FastAPI, PostgreSQL, AWS,Vercel) thatintegrate and orchestrate across heterogeneous systems and technology stacks, poweringgenerative AI agents, complexworkflowsanddocumentcentricexperiences.
- Build and evolve AI orchestration: routing, tool calling, MCP servers,multistepworkflows, safety and guardrails, and robust error handling aroundthirdpartyLLMs (OpenAI, Anthropic, and others).
Scale, reliability,complianceand performance
- Design forhighthroughput,lowlatencyAI workloads: caching, queuing,ratelimiting, model failover, and cost/performance tradeoffs.
- Work withlargescaledata: millions of documents, retrieval and search, vector stores, and indexing strategies tailored to tax,accountand audituse cases.
- Helpestablishand refine SLOs, observability, and incidentresponsefor AI systems that must be correct, auditable, and trustworthy in professional workflows.
About You: You are a fit for the position of Principal Software Engineer if your background includes: Required Experience & Skills:
- BachelorsDegree in Computer Science, Computer Engineering, Related Field, or Equivalent Experience
- 8-10+years of experience infull-stack applicationdevelopment,including hands-on architecture and design leadership for large-scale systems,building scalable web services and APIs.
- C#, .NETexpertiseand experience withproduction systemsusing frameworks like ASP.NET Core (or similar),relational databases (SQLServer,PostgreSQL or equivalent), and amajor cloud provider(AWS preferred, Azure).
- Experience with Python in AI/ML system development, including model integration, data pipelines, or API-based orchestration
- Familiarity with actor model patterns and frameworks (Orleans, Akka, etc.) for resilient, message-driven distributed architectures
- Experience architecting and implementing accessible front-end solutions,including:JavaScript, Typescript, HTML, CSS; experience with modern JavaScript frameworks, e.g., Angular, React, etc.
- Demonstratedexperience and passion forAI systems and new engineering paradigms: LLMs, agents, retrieval, or similar -you care about what "AInative" software should look likeand know what guardrails to put in place.
- Strong background in distributed systemsand cross-system integration: data modeling, API contracts, integrating across heterogeneous services and technology stacks, observability, resilience patterns, and performance tuningunder load.
- Proventrack recordowning large, complex projectsendtoend:architecture, execution, rollout, andlongtermsupport and maintenance.
- Excellent communication skillsand the ability to partner with product, design,UX designand ML teams in afastmovingenvironment.
Preferred Skills & Experience
- Experience designing and implementing CI/CD pipelines (i.e., GitHub Actions)
- Handson experience integrating LLM APIs (e.g.,OpenAI, Anthropic) into production applications, including prompt/response management, cost controls, and safety considerations.
- Experience withAIadjacentinfrastructure:vector databases, embeddings, semantic search, or custom retrieval pipelines.
- Experience having direct interaction andcommunicationswith customers.
- Opinions and experience aroundautomated testing, reliability, and release practicesfor systems with nondeterministic model behavior.
- Prior experience in domains wherecorrectness, auditability, and compliancematter (fintech, tax, audit, legal, or similar), or strong interest in applying AI in those contexts.
#LI-TH1
This posting is for proactive recruitment purposes and may be used to fill current openings or future vacancies within our organization.
What's in it For You?
Hybrid Work Model: We've adopted a flexible hybrid working environment (2-3 days a week in the office depending on the role) for our office-based roles while delivering a seamless experience that is digitally and physically connected. Flexibility & Work-Life Balance: Flex My Way is a set of supportive workplace policies designed to help manage personal and professional responsibilities, whether caring for family, giving back to the community, or finding time to refresh and reset. This builds upon our flexible work arrangements, including work from anywhere for up to 8 weeks per year, empowering employees to achieve a better work-life balance. Career Development and Growth: By fostering a culture of continuous learning and skill development, we prepare our talent to tackle tomorrow's challenges and deliver real-world solutions. Our Grow My Way programming and skills-first approach ensures you have the tools and knowledge to grow, lead, and thrive in an AI-enabled future. Industry Competitive Benefits: We offer comprehensive benefit plans to include flexible vacation, two company-wide Mental Health Days off, access to the Headspace app, retirement savings, tuition reimbursement, employee incentive programs, and resources for mental, physical, and financial wellbeing. Culture: Globally recognized, award-winning reputation for inclusion and belonging, flexibility, work-life balance, and more. We live by our values: Obsess over our Customers, Compete to Win, Challenge (Y)our Thinking, Act Fast / Learn Fast, and Stronger Together. Social Impact: Make an impact in your community with our Social Impact Institute. We offer employees two paid volunteer days off annually and opportunities to get involved with pro-bono consulting projects and Environmental, Social, and Governance (ESG) initiatives. Making a Real-World Impact:We are one of the few companies globally that helps its customers pursue justice, truth, and transparency. Together, with the professionals and institutions we serve, we help uphold the rule of law, turn the wheels of commerce, catch bad actors, report the facts, and provide trusted, unbiased information to people all over the world.
Our use of AI within the recruitment process Thomson Reuters utilizes Artificial Intelligence (AI) to support parts of our global recruitment process. Unless you opt-out, our AI system will assess the information provided by you and compare it to the requirements listed for the role, and present the result to our recruitment personnel for further review. The AI system acts as a supporting tool, but there is always a human making the decision if you will be considered for the role.
In the United States, Thomson Reuters offers a comprehensive benefits package to our employees. Our benefit package includes market competitive health, dental, vision, disability, and life insurance programs, as well as a competitive 401k plan with company match. In addition, Thomson Reuters offers market leading work life benefits with competitive vacation, sick and safe paid time off, paid holidays (including two company mental health days off), parental leave, sabbatical leave. These benefits meet or exceeds the requirements of paid time off in accordance with any applicable state or municipal laws. Finally, Thomson Reuters offers the following additional benefits: optional hospital, accident and sickness insurance paid 100% by the employee; optional life and AD&D insurance paid 100% by the employee; Flexible Spending and Health Savings Accounts; fitness reimbursement; access to Employee Assistance Program; Group Legal Identity Theft Protection benefit paid 100% by employee; access to 529 Plan; commuter benefits; Adoption & Surrogacy Assistance; Tuition Reimbursement; and access to Employee Stock Purchase Plan.
Thomson Reuters complies with local laws that require upfront disclosure of the expected pay range for a position. The base compensation range varies across locations. Eligible office location(s) for this role include one or more of the following: New York City, San Francisco, Los Angeles, and/or Irvine, CA; McLean, VA; Washington, DC. The base compensation range for the role in any of those locations is $183,100 USD - $340,000 USD. For any eligible US locations, unless otherwise noted, the base compensation range for this role is $158,900 USD - $295,100 USD. Base pay is positioned within the range based on several factors including an individual's knowledge, skills and experience with consideration given to internal equity. Base pay is one part of a comprehensive Total Reward program which also includes flexible and supportive benefits and other wellbeing programs. This role may also be eligible for an Annual Bonus based on a combination of enterprise and individual performance.
About Us Thomson Reuters informs the way forward by bringing together the trusted content and technology that people and organizations need to make the right decisions. We serve professionals across legal, tax, accounting, compliance, government, and media. Our products combine highly specialized software and insights to empower professionals with the data, intelligence, and solutions needed to make informed decisions, and to help institutions in their pursuit of justice, truth, and transparency. Reuters, part of Thomson Reuters, is a world leading provider of trusted journalism and news. We are powered by the talents of 26,000 employees across more than 70 countries, where everyone has a chance to contribute and grow professionally in flexible work environments. At a time when objectivity, accuracy, fairness, and transparency are under attack, we consider it our duty to pursue them. Sound exciting? Join us and help shape the industries that move society forward. As a global business, we rely on the unique backgrounds, perspectives, and experiences of all employees to deliver on our business goals. To ensure we can do that, we seek talented, qualified employees in all our operations around the world regardless of race, color, sex/gender, including pregnancy, gender identity and expression, national origin, religion, sexual orientation, disability, age, marital status, citizen status, veteran status, or any other protected classification under applicable law. Thomson Reuters is proud to be an Equal Employment Opportunity Employer providing a drug-free workplace. Thomson Reuters makes reasonable accommodations for applicants with disabilities, including veterans with disabilities, and for sincerely held religious beliefs in accordance with applicable law. If you reside in the United States and require an accommodation in the recruiting process, you may contact our Human Resources Department atHR.Leave-Expert@thomsonreuters.com. Disability accommodations in the recruiting process may include things like a sign language interpreter, making interview rooms accessible, providing assistive technology, or other relevant accommodations. Please note this email is not intended for general recruitment questions and we will promptly respond to inquiries regarding accommodations. More information on requesting an accommodation here. Learn more on how to protect yourself from fraudulent job postings here. More information about Thomson Reuters can be found on thomsonreuters.com
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Thomson Reuters
$158,900 USD - $295,100 USD
life insurance, parental leave, paid time off, paid holidays, tuition reimbursement, 401(k)
Jul 02, 2026