Senior Software Engineer, Back-end .NET (Payments/CID)

Collectors; Región Centro; Híbrido; MXN 1,289,000 - 1,658,000; Jornada completa

Descripción de la vacante

A leading technology company for collectors, located in Guadalajara, Mexico, is seeking a Senior Software Engineer to design and build secure payment and authentication services. The ideal candidate has extensive experience in software engineering, especially with C# and AWS. This role offers hybrid and remote work options with competitive salary and benefits.

Servicios

Competitive salary and benefits

Opportunity to contribute to new office

Formación

• 5+ years of software engineering experience building backend software.
• 3+ years experience with C# and .NET Core framework.
• Experience with AWS cloud services and infrastructure tools.

Responsabilidades

• Participate across the entire software development lifecycle.
• Troubleshoot software issues and debug a large codebase.
• Develop and execute unit and integration tests.

Conocimientos

Software engineering experience

C# and .NET Core

AWS cloud services

Microservices and event-driven architectures

Relational and NoSQL databases

Messaging platforms like Kafka

Automated build and deployment processes

Agile/Scrum methodologies

Herramientas

Terraform

Docker

Descripción del empleo

Overview

Collectors is the leading creator of innovative technology that provides value-added services for collectors worldwide. We grade, authenticate, vault, and sell millions of record-setting collectibles, while modernizing and digitalizing the process to help collectors pursue their passions. We’re always on the lookout for talented people to join our growing team.

Our services span collectible coins, trading cards, Funko Pops!, video games, event tickets, autographs, and memorabilia. Our subsidiaries include PSA, PCGS, SGC, WATA, Card Ladder, and the Long Beach Expo collectibles trade show. Since our founding in 1986, we have graded and authenticated millions of items. We employ more than 1,700 people across our headquarters in Santa Ana and offices in Jersey City, Seattle, Hong Kong, Paris, Shanghai, and Tokyo. We’re transforming the collecting experience with technology that brings authentication, grading, and trading into the modern era. Our products are designed to democratize technology and provide tools that make complex research analytics — including pricing, scarcity reports, and historic sales data — accessible to every collector.

We’re seeking engineers to utilize advanced technology in agile settings, with a focus on improving the customer experience for every collector. We are looking for a Senior Software Engineer to join our Payments and CID team, where you’ll design and build high-quality, secure, and performant payment and authentication services used across the organization. Your work will enable product teams to deliver innovative, value-added experiences while maintaining the highest standards of financial integrity and user trust.

What You’ll Do

• Participate across the entire software development lifecycle, taking features from concept to production release
• Communicate with Product and other stakeholders to develop business requirements
• Collaboratively create solutions with other teams
• Troubleshoot software issues and debug a large codebase
• Develop and execute unit and integration tests
• Contribute to technical documentation to increase maintainability of software assets

Who You Are

• 5+ years of software engineering experience building backend software, with exposure to microservices, event-driven architectures, and REST APIs
• 3+ years experience with C# and .NET Core framework, and openness to new technologies
• Experience with relational and NoSQL databases such as PostgreSQL and DynamoDB
• 3+ years of experience with AWS cloud services (Lambda, RDS, DynamoDB, MSK, S3, SNS, SQS) and infrastructure tools (e.g., Terraform, Docker)
• Experience with messaging platforms like Kafka enabling real-time communication and event-driven architectures
• Experience implementing a complete payment process, from front-end checkout (e.g., Stripe.js) to webhook processing and back-end API logic
• Experience with AI-powered developer tools to improve productivity and code quality
• Strong understanding of object-oriented programming, algorithms, data structures, design patterns, and best practices
• Ability to create and configure automated build, test, and deployment processes for .NET projects using CI/CD tools
• Strong technical, analytical, troubleshooting, and communication skills with ability to document processes
• Exposure to Test Automation tools and practices
• Understanding of how to create modular and extensible APIs
• Proficient in security, documentation, and monitoring best practices
• Familiar with Agile/Scrum methodologies

What We Offer

• Opportunity to be part of our inaugural Guadalajara, Mexico office and contribute to the launch and success of this team
• A dynamic and collaborative international engineering team
• An organization dedicated to supporting the passionate Collectors community
• Competitive salary and benefits

Additional Information

Candidates must be authorized to work in Mexico. Location: we are open to remote candidates living within Mexico, or you can work from our Guadalajara, Jalisco office. We offer hybrid and remote work options.

Collectors uses e-Verify to validate your ability to work legally in the United States.

We are aware of fraud attempts offering positions as Collectors or our business units. We never ask for personal information such as bank accounts or IDs, nor do we send or request payments for equipment. If you suspect fraud, please email [e-mail].

We are committed to equal employment opportunity regardless of race, color, ethnicity, religion, national origin, gender, sex, gender identity or expression, sexual orientation, age, citizenship, marital or parental status, disability, veteran status, or other class protected by applicable law. If you require an accommodation to apply or interview, please email [e-mail]. U.S. residents: for disclosures relating to personal information during the employment application process, please see our Privacy Notice for U.S. Applicants. If you are based in California, you can read information for California residents here.