Santex is a US-based global company founded in 1999, with 26 years of experience in the software industry. Headquartered in California with offices in Córdoba, Argentina, its talent network spans over 18 countries thanks to its flexible, remote-first culture. Santex specializes in custom enterprise software development, operating through Hubs that include eCommerce, BIM, Mobility, Content Delivery, Integration, Web & Mobile Development, Cloud Computing, Artificial Intelligence (AI), Data Science, IT Consulting, and Services. The company is committed to making a positive impact across three dimensions: economic, social, and environmental.
Role: Senior Back-End Engineer
We are looking for a Senior Back-End Engineer to join our team as a key technical contributor in the middleware and integration layer. This layer connects front-end applications (iOS, Android, Web, Kiosk) with internal and external partner systems for a world-class digital platform serving millions of users globally.
Experience
- 5+ years of hands-on production software development experience
- Demonstrated experience building and operating RESTful and/or GraphQL APIs at scale
- Strong proficiency in one or more of: JavaScript/TypeScript (Node.js), Java, or C#
- Experience with serverless architectures on AWS (Lambda, API Gateway, DynamoDB, SQS/SNS)
- Solid understanding of integration patterns: event-driven architecture, webhooks, async messaging, and pub/sub
- Experience integrating with third-party platforms and vendor APIs (e.g., delivery aggregators, POS systems, loyalty platforms, or similar ecosystem partners)
- Proficiency with AI-assisted development tools (GitHub Copilot, Claude, or equivalent) — must be comfortable using AI daily to write, review, refactor, and document code
- Experience with CI/CD pipelines and source control workflows (Git, GitHub Actions, Azure DevOps)
- Familiarity with Infrastructure as Code (Terraform or CloudFormation)
Skills & Competencies
- Strong debugging, root-cause analysis, and production incident management skills
- Excellent verbal and written communication, including technical documentation and stakeholder-facing artifacts
- Ability to translate ambiguous business requirements into clear technical specifications
- Collaborative mindset with a willingness to give and receive candid code review feedback
Preferred Qualifications
- Direct experience integrating with DoorDash Drive, Uber Eats, or other major delivery/marketplace platform APIs
- Experience with multi-region AWS deployments and global traffic management (Akamai, CloudFront)
- Familiarity with identity and authentication patterns: OAuth 2.0, OpenID Connect, AWS Cognito
- Hands-on experience with observability platforms (Dynatrace, Datadog, CloudWatch)
- Experience prompting, fine-tuning, or orchestrating LLMs/AI agents as part of a software delivery workflow
- Experience in QSR, retail, or e-commerce domains
- AWS Certified Developer – Associate or higher
- Exposure to React Native or cross-platform mobile app integration patterns
Location
Location: Remote — EU or US Eastern timezone overlap required Start: Immediate
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What We Do
We are a B-certified, US-based global software services company with over 20 years of experience in creating and executing innovative business solutions for leading brands around the world. Our goal is to transform reality by integrating skills and experience to empower society through technology. Founded in 1999 in San Diego, California, we have multicultural teams in 16 countries and +100 cities around the world. Our corporate culture is what really makes us special: Santex is a people-focused organization and every decision we make is supported by our four core values: Courage, Passion, Trust, and Participation
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