Job description
Senior Software Engineer — Customer Files Orchestration
CoCounsel Legal is seeking a Senior Software Engineer to help build and operate the Customer Files Orchestration Service – the system that makes a customer's own documents usable by CoCounsel Legal's agents.
Every file a customer brings to CoCounsel passes through this team: upload, storage, extraction, embedding, and indexing , orchestrated end-to-end. You make millions of customer files available to CoCounsel. Bringing a customer's content together with Thomson Reuters' world-class proprietary content and the latest frontier models – including TR's own custom large language models – is what makes our products highly differentiated and our agent experiences genuinely grounded. This team is a critical part of what makes that combination possible.
It is also, unavoidably, a hard distributed systems problem. Supporting millions of files means real engineering: dedicated workers, fair queuing so one busy customer cannot starve another, durable state, idempotent processing, and honest reasoning about consistency and delivery guarantees across systems this team does not own.
The team owns what it builds, designing, implementing, testing, deploying, scaling, and operating the service end-to-end. As a Senior Software Engineer you own a meaningful part of that service outright . You are eager to ship something you’re proud of and become someone the team trusts.
Design & Technical Ownership
O wn the orchestration service end-to-end – Take an ambiguous problem, shape it into a design, write the ADR, build it, ship it, and operate it. You and the team are accountable for the outcome, not just the pull request.
Build the queuing and flow-control machinery – Fair queuing so one busy tenant cannot starve another, rate limiting, backpressure, circuit breaking, dead-letter handling, and autoscaling.
Treat our APIs as a product – CoCounsel's file and workspace APIs serve a growing set of consumers beyond orchestration. Versioned contracts, documented behavior, backward compatibility, and deliberate change management are part of the work, not paperwork after it.
Technical Leadership & Collaboration
Work well across boundaries – Some s tages of this pipeline are owned by other teams. Partner with the storage, extraction , indexing, connectors, and front-end teams to ensure we all ship something great.
Bachelor's or master's degree – Computer Science, Engineering, or a related field, or equivalent practical experience.
Concurrency in Python, and a healthy respect for how treacherous it is – You understand the GIL and what it does and does not protect you from , you have written and debugged production asyncio code, and you have been bitten by the classics: fire-and-forget tasks that swallow their own failures, blocking work smuggled onto the event loop, semaphores and pools that quietly cap throughput far below the worker count, and background tasks racing the state they are meant to be updating.
Large-scale orchestration or data pipeline experience – Systems that move large volumes of work through multiple stages across service boundaries, where retries, partial failure, and long-running steps are the normal case rather than the exception.
Queues, fair queuing, rate limiting, and backpressure – Practical, hands-on understanding, including multi-tenant fairness and noisy-neighbor isolation.
API design instincts – Versioned contracts, clear ownership, backward compatibility, and treating an internal API as something other teams build on.
Strong engineering fundamentals – Testing, code review, observability, CI/CD, and infrastructure-as-code as habits rather than obligations.
Clear communication – You can write a design down, defend it, change your mind when the evidence says so, and explain the result to someone who does not share your context.
Preferred Qualifications:
Documents and document management systems – Extraction, OCR, format handling, very large files, and the integration surface of third-party DMS platforms.
Durable workflow engines – Temporal, Step Functions, or similar, with a clear view of when they are worth adopting.
What’s in it For You?
- Hybrid Work Model: We’ve adopted a flexible hybrid working environment 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.
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.
We also make reasonable accommodations for qualified individuals with disabilities and for sincerely held religious beliefs in accordance with applicable law. More information on requesting an accommodation here.
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