# Senior Software Engineer — Customer Files Orchestration **Company**: CoCounsel Legal **Work arrangement**: hybrid **Experience**: senior **Job type**: full-time **Category**: Engineering **Industry**: Technology **Apply**: https://thomsonreuters.wd5.myworkdayjobs.com/en-US/External_Career_Site/job/United-States-of-America-Eagan-Minnesota/Senior-Software-Engineer_JREQ203550?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply **Canonical**: https://yubhub.co/jobs/job_8910a990-ebe ## Description 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. 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. **Key Responsibilities:** - Design & Technical Ownership + Own 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. + Make and defend the calls that define this domain – Where eventual consistency is safe and where only a strongly-consistent read is correct. + Build the queuing and flow-control machinery – Fair queuing so one busy tenant cannot starve another. + Treat our APIs as a product – CoCounsel's file and workspace APIs serve a growing set of consumers beyond orchestration. + Design for correctness at scale, not correctness in a test – Anticipate the failure modes that only appear under concurrency and load. - Reliability & Operations + Operate what you build – Take a primary on-call rotation for the service, lead incident response, and drive the post-mortem. + Make the system explain itself – Instrument and trace well enough to tell "we never notified downstream" apart from "we notified downstream too early". + Reduce operational toil deliberately – Automate the recurring manual fix and treat a runbook step that exists only in someone's head as a defect. - Technical Leadership & Collaboration + Raise the bar around you – Mentor engineers through code review and design review. + Work well across boundaries – Partner with the storage, extraction, indexing, connectors, and front-end teams. + Fully integrate Architecture and DevOps – You are part of a team where engineers do the system design. + Communicate trade-offs plainly – Make the cost of correctness, the meaning of a throughput number, and the risk in a deadline legible to product partners and to your own team. **Required Qualifications:** - Bachelor's or master's degree – Computer Science, Engineering, or a related field, or equivalent practical experience. - 5+ years building production software – With a track record of owning significant components in systems that real customers depend on. - Extensive AWS and production Python experience – This is a Python service on AWS, and you should be able to move confidently through both the code and the infrastructure. - 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. - Kubernetes in production – Our workers and APIs run as pods with event-driven autoscaling (KEDA). - Large-scale orchestration or data pipeline experience – Systems that move large volumes of work through multiple stages across service boundaries. - Consistency models – You can explain where eventual consistency is safe and where it silently corrupts a user-visible outcome. - Delivery guarantees – At-least-once versus exactly-once, why idempotency is usually the real answer. - Queues, fair queuing, rate limiting, and backpressure – Practical, hands-on understanding. - API design instincts – Versioned contracts, clear ownership, backward compatibility. - Real operational ownership – You have carried the pager for something you built, debugged it under pressure. - Strong engineering fundamentals – Testing, code review, observability, CI/CD. - Clear communication – You can write a design down, defend it, change your mind when the evidence says so. **Preferred Qualifications:** - Documents and document management systems – Extraction, OCR, format handling. - Event-driven architectures and streaming – Kafka/MSK or similar. - Durable workflow engines – Temporal, Step Functions, or similar. - Retrieval, embedding, or indexing pipelines – Supporting LLM or agentic applications. - Prior exposure to the legal industry – A real bonus. - Team topologies – This organization uses its vocabulary natively. **What's in it For You?** - Hybrid Work Model: Flexible hybrid working environment. - Flexibility & Work-Life Balance: Flex My Way supportive workplace policies. - Career Development and Growth: Culture of continuous learning and skill development. - Industry Competitive Benefits: Comprehensive benefit plans. - Culture: Globally recognized, award-winning reputation. - Social Impact: Make an impact in your community. - Making a Real-World Impact: Help uphold the rule of law, turn the wheels of commerce. ## Skills ### Required - AWS - Python - Kubernetes - Concurrency in Python - Consistency models - Delivery guarantees - Queues - Fair queuing - Rate limiting - Backpressure - API design - Testing - Code review - Observability - CI/CD ### Nice to have - Documents and document management systems - Event-driven architectures and streaming - Durable workflow engines - Retrieval - Embedding - Indexing pipelines - Prior exposure to the legal industry - Team topologies --- Source: [Apply at thomsonreuters.wd5.myworkdayjobs.com](https://thomsonreuters.wd5.myworkdayjobs.com/en-US/External_Career_Site/job/United-States-of-America-Eagan-Minnesota/Senior-Software-Engineer_JREQ203550?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply)