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NEW Software Engineer Platform & Systems at CrossTerra Join us to apply for the NEW Software Engineer Platform & Systems role at CrossTerra . About the Role: CrossTerra is building infrastructure to enable seamless cross-border commerce, including fulfillment, localization, payments, and marketplace integrations. Our stack includes APIs, Lambdas, multi-tenant frontends, and cloud-native infrastructure. We are looking for a senior engineer to help us scale effectively. Responsibilities include: Implementing standards across Python Lambdas, TypeScript frontends, Terraform modules, and container infrastructure. Refactoring complex logic into clean, maintainable interfaces. Owning key workflows such as CI/CD pipelines, observability, dev containers, and local development tooling. Contributing to new services, including event-driven Lambdas and APIs for logistics, customs, payments, and catalog sync. Leveraging AI tools like Cursor, Codex, ChatGPT to accelerate development and maintain quality. Collaborating with cross-functional teams to deliver robust features on schedule. Writing scalable documentation, from README guides to design notes. Our Tech Stack includes: APIs & Lambdas: Python 3.11 (FastAPI, SQLAlchemy, AWS Lambda, EventBridge, Poetry) Frontends: Next.js, Tailwind, Ant Design Infrastructure: Terraform, ECS/Fargate, Docker, RDS, S3, EKS Tools: DevContainers, GitHub Actions Data: PostgreSQL, Elasticsearch, Shopify, DeepL Observability: OpenTelemetry, CloudWatch, Grafana Requirements: 7+ years in backend systems and infrastructure development. Proficiency in Python and TypeScript, with experience in cloud-native environments. Experience shipping features with minimal debt and understanding of system boundaries. Ability to utilize AI tools effectively to speed up development. Clear communication skills in PRs, documentation, and Slack. Preferred: Experience with commerce, logistics, or marketplace platforms. Familiarity with Alibaba Cloud, DevOps pipelines, or deployments in China. Contributions to open source or shared tooling. Experience supporting multi-market, multi-language, or multi-tenant systems. About CrossTerra: We are an early-stage company building infrastructure for global commerce, focusing on localization, fulfillment, and payments to facilitate cross-border growth seamlessly. Why Join Us: Be a key contributor to scaling our platform, with leadership support and autonomy to make a significant impact. Contact: Winton Welsh, , Website #J-18808-Ljbffr