Senior Software Engineer - AI

MEX005 Thomson Reuters MX Servicios S.A. de C.V.; Ciudad de México; Hybrid; MXN 900,000 - 1,500,000; Full time

Benefits offered by this job

Hybrid work model

Mental Health Days

Headspace app

Tuition reimbursement

Job summary

Thomson Reuters MX Servicios S.A. de C.V. is seeking a Senior Software Engineer to join the CoCounsel Applications team, delivering full-stack features using React, TypeScript, and Python, with AI-powered capabilities including MCP/A2A integration.

You will collaborate with product, design, and platform teams, own workstreams from design through production, and uphold high standards for quality and maintainability in a hybrid work environment.

Qualifications

• 4+ years of professional software engineering experience building production web applications.
• Frontend experience with React, TypeScript, and frontend fundamentals.
• Backend & AI: Python-based APIs, GenAI concepts, MCP/A2A familiarity.
• Ownership: proven track record from design to production.
• Collaboration: strong communication in fast-paced environments.

Responsibilities

• Build End-to-End Solutions: design and implement full-stack features across frontend and backend, including hands-on development in React/TypeScript and Python; contribute to MCP/A2A tooling.
• Deliver Quality Software: apply best practices for code quality, performance, accessibility, testing, and maintainability; participate in code reviews.
• Collaborate Cross-Functionally: partner with product, design, and backend teams to define APIs and deliver cohesive user experiences.
• Own Your Workstreams: break down features into scoped tasks, provide estimates, and drive from development to production with minimal oversight.
• Share Knowledge: contribute to engineering culture through pairing and open technical discussion.

Skills

React

TypeScript

Python

GenAI concepts

API design

Education

Bachelor's degree in Computer Science or equivalent

Tools

MCP

A2A

LLM APIs

Vector databases

Job 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.

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.

More information about Thomson Reuters can be found on thomsonreuters.com.

Equal Employment Opportunity Employer

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.

Additional Information

At Thomson Reuters, we’re not riding the AI wave — we’re reshaping the future of professional work across law, tax, compliance, and journalism. Here, you will collaborate with smart, ambitious people who thrive on solving complex problems, delivering market‑leading solutions, and innovating with curiosity and care.

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