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This role blends deep hands-on technical delivery with technical leadership, mentoring, and shaping the long-term quality and resilience of our systems.</p>\n<p><strong>Responsibilities</strong></p>\n<ul>\n<li>Design, develop, and deploy applications across all phases of the software lifecycle, ensuring high performance, security, and scalability.</li>\n<li>Architect and evolve distributed systems operating in cloud environments, with a focus on resilience, observability, and efficient operations.</li>\n<li>Build and maintain CI/CD pipelines, ensuring smooth, automated delivery and high-quality releases.</li>\n<li>Collaborate on API development, integration patterns, and service-to-service communication.</li>\n<li>Work with modern infrastructure tooling (Azure, containers, dev containers, IaC) to support fast, reliable deployments.</li>\n<li>Apply expertise in Data Lake, Change Data Feed, AKS, and Microsoft Fabric to guide solution architecture and delivery.</li>\n<li>Provide hands-on leadership, supporting engineers through code reviews, design walkthroughs, and architectural discussions.</li>\n<li>Raise engineering quality by influencing best practices, improving reusability, and reducing duplication across the platform.</li>\n</ul>\n<p><strong>Requirements</strong></p>\n<ul>\n<li>Proven ability to design and implement complex, distributed systems operating at scale.</li>\n<li>Strong programming expertise with the ability to work comfortably with object-oriented and functional patterns.</li>\n<li>Good understanding of relational databases.</li>\n<li>Hands-on capability with SQL, Spark SQL, and core data-engineering patterns.</li>\n<li>Strong understanding of system design, integration patterns, and secure communication between services.</li>\n<li>Ability to apply domain knowledge to guide team-level technical decisions, improve architecture, and drive consistency.</li>\n</ul>\n<p><strong>Benefits</strong></p>\n<ul>\n<li>Competitive compensation and benefits package.</li>\n<li>Anticipated annual gross base salary for this position is between 265,000 zł - 419,000 zł.</li>\n<li>Eligible for Annual Bonus Plan.</li>\n<li>LSEG Benefits program, including healthcare, retirement planning, paid volunteering days, and wellbeing initiatives.</li>\n</ul>\n<p><strong>Why Join Us</strong></p>\n<ul>\n<li>Influence the architecture and direction of key systems powering LSEG&#39;s global platforms.</li>\n<li>Work with modern technological stacks, collaborate with talented engineers, and contribute to solutions with real customer impact.</li>\n</ul>\n<p style=\"margin-top:24px;font-size:13px;color:#666;\">Job Data by <a href=\"https://yubhub.co\">YubHub</a>.</p>","url":"https://lseg.wd3.myworkdayjobs.com/en-US/Careers/job/POL-Gdynia-3T-Office-Park-Tower-C/Lead-Software-Engineer_R0124032-1","directApply":true,"hiringOrganization":{"@type":"Organization","name":"London Stock Exchange Group (LSEG)","sameAs":"https://www.lseg.com/","logo":"https://logos.yubhub.co/lseg.com.png"},"x-apply-url":"https://lseg.wd3.myworkdayjobs.com/en-US/Careers/job/POL-Gdynia-3T-Office-Park-Tower-C/Lead-Software-Engineer_R0124032-1","x-work-arrangement":null,"x-experience-level":"senior","x-job-type":"full-time","x-salary-range":"265,000 zł - 419,000 zł","x-skills-required":["Data Lake","Change Data Feed","AKS","Microsoft Fabric","Azure","SQL","Spark SQL","object-oriented","functional"],"x-skills-preferred":[],"x-benefits":["bonus"],"x-licences":[],"x-visa-sponsorship":"unknown","x-visa-sponsorship-text":null,"x-work-authorisation":"unknown","x-work-authorisation-text":null,"datePosted":"2026-10-14T00:00:00.000Z","jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"POL-Gdynia-3T Office Park, Tower C"}},"employmentType":"FULL_TIME","occupationalCategory":"Engineering","industry":"Finance","skills":"Data Lake, Change Data Feed, AKS, Microsoft Fabric, Azure, SQL, Spark SQL, object-oriented, functional","baseSalary":{"@type":"MonetaryAmount","currency":"USD","value":{"@type":"QuantitativeValue","minValue":265000,"maxValue":419000,"unitText":"YEAR"}}}]}