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We combine strong technical expertise with a product mindset to lead complex software initiatives end-to-end. We work with international clients, value autonomy and clear communication, and build long-term partnerships through technical excellence.\nMore information: http://coderio.com\nWe are looking for a seasoned Senior Full Stack Engineer to join a high-impact contract engagement with one of our premier international clients. This strategic initiative focuses on a massive modernization effort, migrating complex enterprise data systems and large-scale data processing architectures into a high-performance solution built on Python and T-SQL. If you thrive on complex data engineering, frontend optimization, and clean-code modernization, this is the perfect challenge for you.\nWhat To Expect In This Role (Responsibilities)\nData Modernization: Deep dive into complex legacy data schemas to optimize, refactor, and convert backend database logic into clean, efficient Python scripts and modern reporting structures.\nFull Stack Engineering: Design, develop, and optimize robust APIs and backend business logic using Node.js and Python.\nFrontend Delivery: Build and enhance intuitive, high-performing user interfaces and data dashboards using ReactJS and Material-UI.\nDatabase Optimization: Write, troubleshoot, and fine-tune complex T-SQL / SQL Server queries, advanced stored procedures, and functions.\nInfrastructure Management: Own and support application deployment utilizing Kubernetes and CI/CD platform infrastructure.\nCollaboration & Quality: Partner with global cross-functional teams, ensuring top-tier code quality, thorough documentation, and rigorous testing practices.\nRequirements:\nExperience: 6+ years of professional software engineering experience in enterprise-grade full-stack environments.\nLanguage: Full verbal and written fluency in English. Excellent communication skills are required for daily collaboration with global teams.\nBackend Stack: Proven, production-level development experience with Python and Node.js.\nFrontend Stack: Hands-on experience with ReactJS.\nDatabase Expertise: Advanced, deep knowledge of SQL Server (complex query optimization, stored procedures, and performance tuning).\nDevOps Infrastructure: Solid experience managing and deploying applications on Kubernetes and handling CI/CD platform infrastructure.\nNice to Have\nTechnical experience working with Sybase databases.\nProfessional experience with Java.\nPrior background in large-scale data migration, report engine modernization, or legacy database restructuring.\nBenefits\n100% remote work.\nLong-term engagement with high impact and autonomy.\nStrategic and high-visibility role within a modern engineering culture.\nOpportunity to influence technical and business strategy.\nCollaborative international team with strong technical leadership.\nClear growth path and leadership opportunities within Coderio.\nWhy Join Coderio?\nAt Coderio, we value talent regardless of location. We are a fully remote company, passionate about technology, collaboration, and fair compensation. We offer an inclusive and challenging environment with real growth opportunities. If you are motivated to design solutions that make a difference, we are waiting for you. 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