Senior Software Engineer

Thomson Reuters

. Build and operate the Customer Files Orchestration Service that makes customer documents usable by CoCounsel Legal agents .

Posted 10/15/2026full-timeMexico City • MexicoSeniorWebsite

Tech Stack

Tools & technologies

AWSKafkaKubernetesPython

About the role

Key responsibilities & impact

Build and operate the Customer Files Orchestration Service that makes customer documents usable by CoCounsel Legal agents
Orchestrate file upload, storage, extraction, embedding, and indexing end-to-end
Design, implement, test, deploy, scale, and operate the service
Own significant parts of the orchestration service from ambiguous problem definition through design, ADR, delivery, and operations
Make architectural decisions about consistency, delivery guarantees, crash recovery, and asynchronous state transitions
Build fair queuing, rate limiting, backpressure, circuit breaking, dead-letter handling, and autoscaling
Maintain versioned, documented, backward-compatible file and workspace APIs
Design for correctness under concurrency and load
Participate in primary on-call rotation and lead incident response
Instrument and trace systems to diagnose downstream notification and file-processing issues
Drive post-mortems and automate recurring operational fixes
Mentor engineers through code and design reviews
Partner with storage, extraction, indexing, connectors, and front-end teams
Integrate system design and DevOps responsibilities as part of the engineering team
Communicate technical trade-offs, throughput implications, correctness costs, and delivery risks
Contribute to products combining customer documents, Thomson Reuters proprietary content, and frontier language models

Requirements

What you’ll need

Bachelor's or master's degree in Computer Science, Engineering, or a related field, or equivalent practical experience
5+ years building production software
Track record of owning significant components in systems that real customers depend on
Extensive AWS and production Python experience
Production experience with Python concurrency and asyncio
Understanding of the Python GIL, asynchronous programming pitfalls, event-loop blocking, semaphores, pools, and background task state races
Kubernetes production experience, including KEDA event-driven autoscaling
Experience tuning scalers and resource requests and debugging production failure modes
Large-scale orchestration or data pipeline experience across service boundaries
Understanding and production experience with consistency models
Understanding of at-least-once versus exactly-once delivery and idempotency
Practical experience with queues, fair queuing, rate limiting, backpressure, multi-tenant fairness, and noisy-neighbor isolation
API design experience with versioned contracts, ownership, and backward compatibility
Real operational ownership, including carrying the pager and debugging systems under pressure
Strong engineering fundamentals in testing, code review, observability, CI/CD, and infrastructure-as-code
Clear written and verbal communication
Preferred: document and document management systems, extraction, OCR, format handling, very large files, and third-party DMS integrations
Preferred: event-driven architectures, Kafka/MSK, SQS, and event-driven autoscaling
Preferred: durable workflow engines such as Temporal or Step Functions
Preferred: retrieval, embedding, or indexing pipelines for LLM or agentic applications
Prior legal industry exposure preferred
Familiarity with team topologies vocabulary

Benefits

Comp & perks

Flexible hybrid working environment for office-based roles
Flexible work arrangements, including work from anywhere for up to 8 weeks per year
Flexible vacation
Two company-wide Mental Health Days off
Access to the Headspace app
Retirement savings
Tuition reimbursement
Employee incentive programs
Resources for mental, physical, and financial wellbeing
Two paid volunteer days off annually
Opportunities to participate in pro-bono consulting projects and ESG initiatives
Career development, continuous learning, and skills development through Grow My Way programming
Flexible work-life balance policies through Flex My Way
Social Impact Institute opportunities