{"id":4040922,"date":"2026-10-02T13:22:34","date_gmt":"2026-10-02T11:22:34","guid":{"rendered":"https:\/\/remoteworkukraine.com\/ua\/remote-job\/senior-full-stack-data-engineer-node-js-react-js\/"},"modified":"2026-10-02T23:13:21","modified_gmt":"2026-10-02T21:13:21","slug":"senior-full-stack-data-engineer-node-js-react-js-a-listware-10-02-2026","status":"publish","type":"job","link":"https:\/\/remoteworkukraine.com\/ua\/remote-job\/senior-full-stack-data-engineer-node-js-react-js-a-listware-10-02-2026\/","title":{"rendered":"Senior Full-Stack Data Engineer (Node.js \/ React.js)"},"content":{"rendered":"<p>Our Customer:<br \/>A global product company in the cybersecurity domain, focused on helping organizations identify and reduce risks across modern IT environments.<\/p>\n<p>Your Tasks:<br \/>Develop and maintain production features across the full stack, from the React UI through the API to the database.<br \/>Design, maintain and troubleshoot Node.js and TypeScript backend services and production APIs.<br \/>Maintain and enhance the React front end, including modern React patterns, data flow and UI performance.<br \/>Own the data access layer in Node.js\/TypeScript, keeping control over generated SQL and performance-critical behavior.<br \/>Design and evolve database schemas, relationships, constraints and data integrity rules.<br \/>Diagnose and optimize slow queries and production bottlenecks using execution plans and index analysis.<br \/>Plan and execute production database migrations with backward compatibility and minimal downtime.<br \/>Trace and resolve production incidents across the UI, API, data access layer and database.<br \/>Interface directly with the international client and engineering team in live technical discussions.<br \/>Deliver high-quality, resilient software updates with limited supervision.<\/p>\n<p>Required Experience and Skills:<br \/>8+ years of professional software engineering experience, including recent hands-on full-stack work in production systems.<br \/>Strong hands-on experience with Node.js and Node.js frameworks such as NestJS or Hapi.js.<br \/>Expert-level knowledge of TypeScript in both backend services and data access layers.<br \/>Strong production experience with React, including modern React patterns and state and data flow.<br \/>Hands-on experience with state management libraries (MobX or Redux).<br \/>Strong practical SQL skills, preferably with PostgreSQL.<br \/>Hands-on experience with complex JOINs, aggregations and filtering on large datasets.<br \/>Proven ability to diagnose slow queries using EXPLAIN and ANALYZE, execution plans and index effectiveness validation.<br \/>Experience designing and maintaining data access layers with query builders or ORM tools.<br \/>Practical experience with schema design, normalization and denormalization decisions, constraints and data integrity.<br \/>Hands-on experience with multi-step transactional operations, rollback behavior, race conditions and transaction isolation trade-offs.<br \/>Experience with production database migrations, schema versioning, backward-compatible changes and zero-downtime deployment approaches.<br \/>Strong REST API experience, including over-fetching, N+1 problems, latency and efficient mapping of database data into API responses.<br \/>Demonstrated ability to trace production issues across the UI, API, data access layer and database.<br \/>Experience in production environments with large record volumes and high load.<br \/>Experience working in an Agile environment, maintaining code quality through peer reviews and testing.<br \/>Proven ability to work autonomously, clarify requirements and drive tasks to completion without continuous follow-up.<br \/>Proven ability to take ownership of outcomes across the full stack rather than a single component.<br \/>Proven ability to raise risks, blockers and missing information early and provide clear status updates.<br \/>Ability to enter an existing codebase and domain, absorb context quickly and adapt to established engineering practices.<br \/>Ability to receive direct feedback, discuss disagreements professionally and adjust quickly.<br \/>English  Upper-Intermediate<\/p>\n<p>Would Be a Plus:<br \/>Hands-on experience with GraphQL schemas, resolvers and integration<br \/>Experience with Next.js and server-side rendering<br \/>Experience with stored procedures and database-side performance-critical logic<br \/>Experience with Redis and caching strategies that reduce unnecessary database load<br \/>Experience with AWS and cloud-based production environments<br \/>Exposure to Docker, Kubernetes and CI\/CD pipelines<br \/>Background in cybersecurity or identity management<br \/>Experience with large-scale identity data (Active Directory or Entra ID)<br \/>Experience with data-intensive, analytics or enterprise high-load products<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Our Customer:A global product company in the cybersecurity domain, focused&#8230;<\/p>\n","protected":false},"author":2025,"featured_media":0,"parent":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"_mo_disable_npp":"","rwu_salary_min":0,"rwu_salary_max":0,"rwu_salary_currency":"","rwu_salary_period":"","rwu_english_level":"B2","rwu_experience_months":96,"rwu_candidate_countries":"","rwu_company_type":"","rwu_industry":"other","rwu_part_time":false,"rwu_source_views":134,"rwu_source_applications":20,"rwu_source_category":"Fullstack","rwu_source_name":"Djinni.co","rwu_source_url":"https:\/\/djinni.co\/jobs\/851313-senior-full-stack-data-engineer-node-js-react\/"},"job_category":[57],"job_type":[54],"class_list":["post-4040922","job","type-job","status-publish","hentry","job_category-programuvannia","job_type-povna-zainiatist"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Senior Full-Stack Data Engineer (Node.js \/ React.js), 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