Senior Software Engineer (Java)

<p>Upwork Inc.’s (Nasdaq: UPWK) family of companies connects businesses with global, AI-enabled talent across every contingent work type including freelance, fractional, and payrolled. This portfolio includes the Upwork Marketplace, which connects businesses with on-demand access to highly skilled talent across the globe, and Lifted, which provides a purpose-built solution for enterprise organizations to source, contract, manage, and pay talent across the full spectrum of contingent work. From Fortune 100 enterprises to entrepreneurs, businesses rely on Upwork Inc. to find and hire expert talent, leverage AI-powered work solutions, and drive business transformation. With access to professionals spanning more than 10,000 skills across AI & machine learning, software development, sales & marketing, customer support, finance & accounting, and more, the Upwork family of companies enables businesses of all sizes to scale, innovate, and transform their workforces for the age of AI and beyond.</p> <p>Since its founding, Upwork Inc. has facilitated more than $30 billion in total transactions and services as it fulfills its purpose to create opportunity in every era of work. Learn more about the Upwork Marketplace at<a href="http://upwork.com/"> Upwork.com</a> and follow us on<a href="https://www.linkedin.com/company/upwork"> LinkedIn</a>,<a href="https://www.facebook.com/upwork"> Facebook</a>,<a href="https://www.instagram.com/upwork/"> Instagram</a>,<a href="https://www.tiktok.com/@upwork"> TikTok</a>, and<a href="https://twitter.com/upwork"> X</a>; and learn more about Lifted at<a href="http://go-lifted.com/"> Go-Lifted</a> and follow on<a href="https://www.linkedin.com/company/go-lifted/"> LinkedIn</a>.</p> <hr> <p><br>As a Senior Software Engineer on the tax engineering team, you will build and improve the services that power tax calculation across VAT, sales tax, and withholding for a global platform. You'll own meaningful pieces of the backend, contribute to frontend workflows, and collaborate closely with engineers, product, finance, and compliance partners to ship reliable, well-tested systems. This is a strong fit for someone who enjoys working through detailed business logic, integrating third-party providers, and steadily raising the quality of complex financial software.</p> <p><strong><br>Responsibilities:</strong></p> <ul> <li>Build, extend, and maintain backend services for tax calculation and payments, focusing on accuracy, reliability, and clean, testable code.</li> <li>Contribute to frontend workflows using Vue.js or similar modern JavaScript frame