{"id":8228,"date":"2026-07-22T10:56:10","date_gmt":"2026-07-22T08:56:10","guid":{"rendered":"https:\/\/itds.pl\/it-jobs\/senior-backend-developer-java-and-node-js-platforms\/"},"modified":"2026-07-22T11:07:25","modified_gmt":"2026-07-22T09:07:25","slug":"senior-backend-developer-java-and-node-js-platforms","status":"publish","type":"matador-job-listings","link":"https:\/\/itds.pl\/pl\/praca\/senior-backend-developer-java-and-node-js-platforms\/","title":{"rendered":"Senior Backend Developer \u2013 Java and Node.js Platforms"},"content":{"rendered":"<p><strong>Empower innovative architecture tools \u2014 shape the future of banking technology!<\/strong><\/p> <p>Krakow-based opportunity with hybrid work model (up to 3 remote days per week).<\/p> <p>As a <strong>Senior Backend Developer \u2013 Java and Node.js Platforms<\/strong>, you will be working for our client, a leading international bank. You\u2019ll contribute to designing, building, and maintaining cutting-edge internal tooling that supports the bank\u2019s Future State Architecture across CTO Platforms. Your work will enable seamless integration of data, workflows, and autonomous AI agents, helping redefine technology governance at scale and driving digital transformation.<\/p> <p><strong>Your main responsibilities:<\/strong><\/p> <ul> <li>Design, develop, and maintain reliable internal tooling supporting Future State Architecture (FSA) with a focus on security, resilience, and usability.<\/li> <li>Build backend services and APIs using Node.js and\/or Java, integrating with PostgreSQL and other enterprise data sources.<\/li> <li>Develop web UI components utilizing modern JavaScript\/TypeScript frameworks to deliver intuitive user workflows.<\/li> <li>Apply agentic engineering practices to orchestrate autonomous AI agents for building, testing, and deploying software.<\/li> <li>Implement secure, efficient integration patterns (e.g., MCP, API design, tool\/function calling) across the architecture ecosystem.<\/li> <li>Collaborate with architects, platform engineers, and stakeholders to translate architectural needs into effective technical solutions.<\/li> <li>Ensure solutions adhere to client&#8217;s&nbsp;engineering standards, including testing, performance, security, and operational readiness.<\/li> <li>Support continuous improvement initiatives through automation, code reviews, and operational support for live systems.<\/li> <\/ul> <p><strong>You&#8217;re ideal for this role if you have:<\/strong><\/p> <ul> <li>At least <strong>5 years of experience<\/strong> in software engineering, with strong expertise in <strong>Node.js and\/or Java<\/strong>.<\/li> <li>Proficiency with <strong>relational databases<\/strong>, particularly <strong>PostgreSQL<\/strong> (data modeling, query optimization).<\/li> <li>Web UI development experience with modern <strong>JavaScript\/TypeScript frameworks<\/strong>.<\/li> <li>Knowledge of <strong>agentic application engineering<\/strong>, including orchestration of autonomous AI agents.<\/li> <li>Experience with integration patterns such as <strong>MCP<\/strong>, <strong>API design<\/strong>, and <strong>tool\/function calling<\/strong>.<\/li> <li>A production engineering mindset, emphasizing <strong>security, resilience, performance, and observability<\/strong>.<\/li> <li>Solution design skills for internal platforms and tooling.<\/li> <li>Excellent <strong>English communication skills<\/strong> and proven experience in stakeholder collaboration within a global environment.<\/li> <\/ul> <p><strong>It is a strong plus if you have:<\/strong><\/p> <ul> <li>Certifications or experience in automation, DevOps, or related fields.<\/li> <li>Additional familiarity with cloud services or enterprise architecture frameworks.<\/li> <\/ul> <p><strong>Language Required for the role:<\/strong><br \/> Fluent English (spoken and written).<\/p> <p><strong>Eligibility to work in:<\/strong><br \/> Only candidates with an existing legal right to work in the European Union will be considered for this role.<\/p> <p>#MAKEYourCareerBETTER<\/p> <p>Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.<\/p> <nav class=\"matador-job-navigation\"> <ul> <li> <a href=\"https:\/\/itds.pl\/pl\/?wpid=8228&#038;bhid=9602\" rel=\"button\" class=\"matador-button\" title=\"Apply Now\">Apply Now<\/a> <\/li> <li> <a href=\"https:\/\/itds.pl\/pl\/praca\/senior-backend-developer-java-and-node-js-platforms\/\" rel=\"button\" class=\"matador-button matador-button-secondary\" title=\"More Info\">More Info<\/a> <\/li> <\/ul> <\/nav> ","protected":false},"excerpt":{"rendered":"<p>Empower innovative architecture tools \u2014 shape the future of banking technology! Krakow-based opportunity with hybrid work model (up to 3 remote days per week). As a Senior Backend Developer \u2013 Java and Node.js Platforms, you will be working for our client, a leading international bank. You\u2019ll contribute to designing, building, and maintaining cutting-edge internal tooling &hellip; <a href=\"https:\/\/itds.pl\/pl\/praca\/senior-backend-developer-java-and-node-js-platforms\/\">Continued<\/a><\/p>\n","protected":false},"template":"","meta":{"_acf_changed":false,"_matador_source_id":"9602"},"matador-categories":[],"matador-locations":[40],"matador-types":[25],"matador-remote-job-possible":[181],"matador-skills":[183],"matador-seniority":[177],"matador-position":[174],"matador-technology":[871,707,708,2583,765,766,1030,709],"matador-contract-type":[402,431],"matador-priority":[288],"matador-language":[179],"matador-place":[439],"matador-visibility":[704],"matador-choose-website-to-publis":[449],"class_list":["post-8228","matador-job-listings","type-matador-job-listings","status-publish","hentry","matador-locations-krakow","matador-types-contract","matador-remote-job-possible-hybrid","matador-skills-developer","matador-seniority-senior","matador-position-banking","matador-technology-api","matador-technology-java","matador-technology-javascript","matador-technology-mcp","matador-technology-node-js","matador-technology-postgresql","matador-technology-relational-databases","matador-technology-typescript","matador-contract-type-b2b","matador-contract-type-employment-contract","matador-priority-2-medium","matador-language-english","matador-place-krakow","matador-visibility-online","matador-choose-website-to-publis-poland"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Senior Backend Developer \u2013 Java and Node.js Platforms | ITDS<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/itds.pl\/pl\/praca\/senior-backend-developer-java-and-node-js-platforms\/\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Senior Backend Developer \u2013 Java and Node.js Platforms | ITDS\" \/>\n<meta property=\"og:description\" content=\"Empower innovative architecture tools \u2014 shape the future of banking technology! Krakow-based opportunity with hybrid work model (up to 3 remote days per week). As a Senior Backend Developer \u2013 Java and Node.js Platforms, you will be working for our client, a leading international bank. 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