Senior Backend Developer / Technical Lead

Craftware is a technology company of over 500 experts, empowering large organizations to solve complex business challenges with modern IT solutions - from sales systems and automation to data platforms and AI. We operate where technology must be reliable, secure, and scalable. We deliver end-to-end projects: from analysis and architecture through implementation to development and maintenance. We are a trusted partner of industry leaders such as Salesforce, Veeva, UiPath, and Databricks.Model: remoteEngagement: full-timeRole summaryWe're looking for a hands-on Senior Backend Developer / Technical Lead (Python) to drive the technical execution of an enterprise integration solution built on top of the VMIA framework and Azure cloud. This role sits at the core of a system-to-system integration initiative for an international client — you'll design and build serverless backend components that move data reliably between Salesforce and surrounding systems, own the CI/CD pipelines that ship them, and use AI-assisted tooling to accelerate delivery without cutting corners on quality.ResponsibilitiesDesign, build, and scale Azure Functions and lightweight integration microservices, including background workers that handle large file attachment streaming (>10MB) and asynchronous payload processing.Implement webhook listeners for Vault Spark notifications and outbound REST clients for write-backs to Salesforce.Own REST API and integration architecture -JSON processing, asynchronous communication patterns, and system-to-system data transformation pipelines.Configure and maintain automated CI/CD pipelines in GitHub (GitHub Actions / Workflows) to build and deploy containerized/serverless components into client-owned Azure environments.Actively use GitHub Copilot and AI coding assistants to accelerate development, boost unit test coverage, and streamline documentation.Contribute to architectural decisions and technology stack choices as part of a small, senior technical team.RequirementsMust-have:Strong hands-on experience with Azure Functions and serverless/microservices architectureAdvanced proficiency in REST APIs, webhooks, JSON processing, and asynchronous communication patternsPractical experience setting up CI/CD pipelines in GitHub (GitHub Actions / Workflows)Familiarity with GitHub Copilot or similar AI coding assistants in daily development workSolid programming skills in Python, React.js, and TypeScriptFluent English, both written and spokenNice-to-have:Experience integrating with Salesforce (REST write-backs, event-driven patterns)Experience with enterprise document/attachment streaming and large-payload processingFamiliarity with Veeva Vault or similar validated/regulated system landscapesUnderstanding of Infrastructure as Code (Terraform, ARM Templates)We offer:B2B contract (rate negotiated individually, up to 220 PLN net/h + VAT)Fully remote service deliveryBroad range of projects (internal, international) - genuine variety of clients and tasksBudget for skills development and certifications as part of the collaborationRegular collaboration reviews and discussion of project scopeAdditional benefits available as part of the collaborationNetworking and team-building events for project teams