Analyst

ExlService Holdings, Inc.; Toluca, Chihuahua; Hybrid; MXN 600,000 - 840,000; Full time

Job summary

ExlService Holdings, Inc. is seeking a backend engineer to design, build, and operate robust services in Python and Java. You will contribute to APIs, integrations, and architecture while applying secure coding and observability best practices.

Hybrid work with two days on-site in Toluca supports collaboration with QA, DevOps, and security teams. You will join a cross-functional environment emphasising quality, reliability, and scalable solutions, delivering code reviews and continuous

Qualifications

• 5+ years of backend development experience.
• Proficient in Python and/or Java.
• Experience with REST APIs, SQL/NoSQL, and Git workflows.
• Strong testing practices and CI/CD fundamentals.
• English proficiency: professional working level or above (B2+/C1 preferred).

Responsibilities

• Build and maintain backend services, APIs, and integration components.
• Write clean, testable code and perform quality code reviews.
• Contribute to architecture decisions and production troubleshooting.
• Apply secure coding, observability, reliability, and performance best practices.
• Collaborate with QA, DevOps, Architecture, Security, Data teams, and product stakeholders.

Skills

Python

Java

REST APIs

SQL/NoSQL

Git workflows

CI/CD

English proficiency (B2+/C1)

Tools

Git

CI/CD tooling

Job description

Role Summary

Design, build, and operate robust backend services in Python and Java, using AI tools such as Claude and Copilot responsibly to improve productivity and quality.

Key Responsibilities

• Build and maintain backend services, APIs, and integration components.
• Write clean, testable, maintainable code and perform quality code reviews.
• Contribute to architecture decisions and production troubleshooting.
• Apply secure coding, observability, reliability, and performance best practices.
• Collaborate with QA, DevOps, Architecture, Security, Data teams, and product stakeholders.

AI Skills for This Role

• Practical use of Claude/Copilot for coding, refactoring, debugging, and test generation.
• Ability to write high-quality prompts for technical tasks.
• Ability to critically review and harden AI-generated code.
• Awareness of data security and IP/confidentiality constraints when using AI tools.

Required Qualifications

• 5+ years of backend development experience.
• Strong hands-on proficiency in Python and/or Java.
• Solid experience with REST APIs, SQL/NoSQL, and Git workflows.
• Strong testing practices and CI/CD fundamentals.
• English proficiency: professional working level or above (B2+/C1 preferred).

Nice to Have

• Microservices, event-driven architecture, and cloud-native development.
• Familiarity with DDD, clean architecture, and design patterns.
• Prior experience in financial services.

Work model

Flexible / Hybrid - 2 days on-site at Tecnoparque / Toluca.

English proficiency is required for all roles.