Senior (or Lead) Software Engineer - (Contract)

Senior (or Lead) Software Engineer - (Contract) Mexico The Role: We are seeking a Senior (Or Lead) Software Engineer to join our team. In this role, you will be responsible for designing, building, and operating scalable backend systems, delivering clean and performant code, and contributing to the architectural direction of the platform. You will collaborate closely with other engineers and cross‑functional partners to build reliable services, improve development tooling, and support high‑quality software delivery while mentoring teammates and promoting engineering best practices. Key Responsibilities: Develop and deliver clean, maintainable, performant code Help define the architectural strategy for the systems you own and contribute to architectural vision for the platform at large Review code and provide feedback on technical work on the team Build services and tooling to streamline the development process Mentor and coach less experienced engineers on the team Help define standards and best practices on your team for testing, software delivery, observability, contract definition, and so on Participate in sprint‑related meetings such as standup, grooming, retrospective, and roadmap replenishment Encourage a culture of experimentation, prototyping and brainstorming across technical teams Qualifications & Experience: 5+ years of experience as a software engineer, building and operating production systems at scale Strong proficiency in Java (Python or similar languages) and database technologies Experience integrating AI/ML capabilities (e.g., LLMs, recommendation systems, intelligent automation) into production backend systems is a strong plus. Strong analytical and troubleshooting skills You love to design, build, and operate domain‑driven backend systems at scale You’ve worked in agile‑ish systems, kanban systems, and more importantly hybrid systems You’re good at demystifying complex technical concepts for laymen and love to simplify complex ideas for curious teammates Automation has become a core value for you, and your systems can operate in production for long periods without human intervention You already can’t live without continuous delivery and know how to drive towards small, frequent deployments You know how to tune up observability up and down the stack Nice to have: Experience with ecommerce is a big plus Bachelor’s degree in computer science or a related field is preferred What we offer: Fully remote engagement across Mexico. Opportunity to work on high‑impact client systems with real operational ownership. Employment type: Contract Tech Holding is proud to be an Equal Opportunity Employer and is committed to fostering a diverse and inclusive workplace. We welcome applicants from all backgrounds and experiences, and we consider qualified applicants without regard to race, color, religion, gender, sexual orientation, gender identity, national origin, disability, veteran status, or any other legally protected characteristic. If you require accommodation in the application process, please contact our HR #J-18808-Ljbffr