# Senior Software Engineer - AI at Thomson Reuters

Thomson Reuters is hiring a Senior Software Engineer - AI in Mexico City, Mexico. Level rates it Little AI ●○○○; you can [apply on Thomson Reuters](https://jobsbylevel.com/go/4d38fcd5-85d3-4b35-9f37-be8e482f33e4?utm_medium=ai-agent).

AI Level 1, AI centrality 24 out of 100. Mexico, Mexico City.

## Details

- Company: [Thomson Reuters](https://jobsbylevel.com/companies/thomson-reuters)
- AI level: AI Level 1 (score 24 out of 100)
- Location: Mexico, Mexico City
- Posted: November 9, 2026
- Apply: https://jobsbylevel.com/go/4d38fcd5-85d3-4b35-9f37-be8e482f33e4?utm_medium=ai-agent
- Free CV review for this job: https://jobsbylevel.com/cv-review?job=senior-software-engineer-ai-at-thomson-reuters-012f72

## Prepare for this job

The job page lists 4 likely interview questions for this offer, with a CV checklist: https://jobsbylevel.com/jobs/senior-software-engineer-ai-at-thomson-reuters-012f72

## Description

Job Description: We're looking for a Senior Software Engineer to join the CoCounsel Applications team and play a hands-on role in building and evolving our external integration strategy leveraging MCP and A2A. In this role, you'll design and deliver full-stack features across our frontend and backend systems, write high-quality code every day, and work closely with product, design, and platform partners to ship high-impact, customer-facing features. Key Responsibilities: As a Senior Software Engineer, you will: Build End-to-End Solutions: Design and implement full-stack features across frontend and backend systems, including hands-on development in our React, TypeScript and Python stacks — and direct contribution to AI-powered capabilities such as agentic workflows, LLM integrations, and MCP/A2A-based tooling. Deliver Quality Software: Apply best practices for code quality, performance, accessibility, testing, and maintainability in your own work, and contribute to raising the bar through thoughtful code reviews. Collaborate Cross-Functionally: Partner closely with product, design, and backend teams to clarify requirements, help define APIs, and deliver cohesive user experiences. Own Your Workstreams: Break down features into well-scoped tasks, provide reliable estimates, and take your work from development through production with minimal oversight. Share Knowledge: Contribute to a strong engineering culture through pairing, code reviews, and open technical discussion with your teammates. Required Qualifications You're a fit for the role of Senior Software Engineer if your background includes: Technical Experience: 4+ years of professional software engineering experience building and shipping production web applications used by real customers. Frontend Expertise: Experience with modern frontend frameworks such as React, along with a solid understanding of TypeScript and frontend fundamentals. Backend & AI Skills: Experience building APIs and services with Python as a core language, and working familiarity with GenAI concepts including prompt engineering, agentic system design, or LLM orchestration frameworks; exposure to MCP/A2A is a plus. Ownership: Track record of taking features from design through production, improving the systems you work in, and making sound technical decisions within your scope. Collaboration & Communication: Comfortable operating in fast-paced, ambiguous environments, with strong communication skills and a collaborative mindset. Preferred Qualifications BA or BS in Computer Science or equivalent practical experience Experience with performance optimization for web applications, including monitoring, profiling, and tuning for scale Hands-on experience building AI-powered product features, including working with LLM APIs, RAG pipelines, or agentic workflows in a production environment Familiarity with AI/ML infrastructure including vector databases, model serving, and cost/latency optimization for LLM-powered features #LI-DD3 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

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Source: https://jobsbylevel.com/jobs/senior-software-engineer-ai-at-thomson-reuters-012f72

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