Backend Developer

Backend Developer Zenit Corp is a fast-growing e-commerce group building and scaling multiple direct-to-consumer brands. We are looking for a hands-on Backend Developer to build the services, APIs, integrations, and data systems that power our internal products and e-commerce operations. You will work across the backend lifecycle, from understanding business requirements and designing the architecture to building, deploying, monitoring, and improving systems in production. This is not a maintenance-only role. You will work directly with leadership and product teams, take ownership of complex operational problems, and turn them into secure, reliable, and scalable backend solutions. What you’ll do Build and maintain backend services, APIs, and internal platforms.Design data models and workflows for e-commerce and operational systems.Create reliable integrations with Shopify, fulfillment partners, payment providers, and third-party APIs.Develop event-driven automations, webhooks, queues, and scheduled jobs.Build authentication, permissions, file-processing, and real-time services.Improve system reliability, performance, observability, and security.Take backend projects from technical design to production deployment.Own database decisions, migrations, error handling, and data integrity.Monitor, debug, document, and continuously improve production systems. What we’re looking for 3+ years of professional backend or full-stack development experience.Strong experience building and deploying backend systems used in production.Strong experience with JavaScript or TypeScript, Node.js, and API design.Experience with relational or document databases, data modeling, and migrations.Solid understanding of authentication, security, asynchronous processing, webhooks, and queues.Ability to diagnose complex problems and deliver solutions independently.Experience using AI coding tools such as Codex, Cursor, Claude Code, or GitHub Copilot.English level B2 or higher. Spanish is highly valuable.Experience with e-commerce, fulfillment, payment, or operational systems is highly valuable.A practical, proactive, and execution-focused mindset.Comfort working with cloud deployments, monitoring, and third-party APIs. We care more about what you can build than about degrees or matching every requirement perfectly. What success looks like Ship reliable backend systems that improve daily operations and support real business workflows.Turn ambiguous business needs into clear technical designs and production-ready services.Make sensible architecture and data decisions that keep systems maintainable as they grow.Communicate progress, risks, tradeoffs, and technical decisions clearly to the wider team. What we offer Highly competitive salary based on experience.Fully remote collaboration.High ownership and direct contact with leadership.Real projects with measurable business impact.Modern development and AI-assisted workflows.Long-term growth opportunities as the company scales.