Senior Software Engineer - Security Libraries

Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Senior Software Engineer Overview Interested in building the next generation platform that empowers end-to-end marketing campaign management inclusive of audience targeting, campaign execution, and measurement? Our platforms operate at global scale, enabling organizations across markets worldwide to leverage data-driven marketing capabilities. The overarching goal of data-driven marketing is to deliver the right content, to the right person, at the right time. The Marketing Services (MS) Technology team is looking for a Senior Software Development Engineer to provide technical ownership, with an emphasis on engineering efficiency, innovation, and on-time delivery. The ideal candidate is passionate about building highly scalable, cloud-native platforms using modern software engineering and data technologies. You will have the opportunity to work across technologies including Java, Spring Boot, React, GraphQL, Databricks, AWS, Spark, Hadoop, event-driven architectures, and real-time data platforms. Our teams leverage GenAI and Agentic AI capabilities throughout the product development lifecycle to accelerate delivery, improve quality, enhance automation, and increase engineering productivity. This role offers an opportunity to help shape Mastercard's ongoing cloud transformation journey while transform

Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Senior Software Engineer - Java/Spring Overview Our team’s mission is to make payments easy, fast and as secure as possible. That’s why we’ve developed technology that enables mobile payments (Apple Pay, Google Pay, Samsung Pay, Garmin Pay, etc.) and secure, tokenized remote commerce payments. We call the set of services delivering this "MDES”. We’ve experienced incredible success and growth, with 10s of billions of transactions being processed each year, however now we are focusing on ensuring the success continues as we scale MDES even further. Our focus is on the best possible customer experience. We’re making our services faster, more reliable and more scalable whilst meeting emerging on-soil regulation and increasing demand across the globe. Right now, our applications are deployed into our on-premises infrastructure, but to meet these challenging goals we need them to be deployable into the public cloud. That’s where you come in. We are searching for new team members with first-hand experience of developing and deploying secure, performant, reliable, resilient, distributed applications both in private and public cloud platforms. You will have the boundless energy, enthusiasm and drive to deliver the next phase of this mission-critical transformation. Role As a Senior Software Developm

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. 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 Upwork.com and follow us on LinkedIn , Facebook , Instagram , TikTok , and X ; and learn more about Lifted at Go-Lifted and follow on LinkedIn . As a Senior People Operations Specialist, you will play a key role in delivering thoughtful, scalable people programs and operational support across the employee lifecycle. As part of our People Operations team, you’ll combine strong operational expertise with the judgment and partnership skills needed to support HR Business Partners, managers, and employees through both day-to-day needs and more complex people matters. You’ll own and continuously improve key people programs and processes, with a particular focus on employee lifecycle operations, immigration

Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Senior Specialist, Talent Acquisition (12 Month FTC) Overview The Talent Acquisition team is looking for a Senior Specialist, Talent Acquisition on a 12 month fixed term contract to support our Core Payments, Commercial New Payment Flows and International Marketing Communications organisations with a primary focus on sales and product recruitment across Europe. You would be responsible for managing the end to end hiring process for our candidates, sourcing great talent for our teams and proactively delivering a high-quality experience for both candidates and hiring managers alike. The ideal candidate is passionate about the candidate and hiring manager experience journey, highly motivated, intellectually curious, loves engaging and sourcing new talent, and possesses an organised mindset (with the ability to navigate complex matrix environments). All About the Role • Managing requisitions across three business units with a focus on but not limited to product and sales. • Serves as the point of contact for internal and external candidates, initial hires, business groups and divisions. • Collaborate with stakeholders to tailor strategies to attract the best talent in the external market. • Collaborating with hiring managers to create job ads for current openings. • Advertising job openings on

Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Senior Technical Program Manager Overview Are you a technical program manager who wants to work for a company that offers above and beyond benefits including paid parental leave, flexible work hours, gift matching, and even volunteer incentives? Do you want to work in an inclusive and nurturing culture that encourages your own professional learning and development? At Mastercard, our industry expertise is enhanced by our commitment to being a force for good in the world. We do well by doing good. Our core values of trust, partnership, agility and thoughtful risk taking are displayed in everything we do. Our culture of collaboration and inclusion makes our company the place where the best people choose to be. Come join us! ROLE Mastercard Data and Services (D&S) harnesses the power of Mastercard's transaction data to help Fortune 500 companies make multimillion-dollar business decisions. The D&S Data Delivery team is hiring a Senior Technical Program Manager to lead data integration strategy on some of our technically demanding client engagements. Responsibilities will include: • Proactively manage the end-to-end delivery of data engineering work on one or more client engagements, reporting out progress, ensuring dependencies are covered, overseeing the gaps between teams, processes

Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary HR Manager (Fixed-Term Contract - Maternity Cover) About the Role This is an exciting opportunity to join a dynamic and international People & Capability team on a fixed-term basis, providing maternity cover. You'll work closely with senior business leaders, helping to shape and execute people strategies that enable business growth, strengthen organisational effectiveness, and enhance the employee experience. As a trusted advisor, you will partner with leaders across the organisation, balancing strategic people initiatives with hands-on HR support across the employee lifecycle. Key Responsibilities Reporting to the Director, People Business Partner, you will: • Partner with leaders and managers to deliver people strategies aligned to business objectives and organisational priorities. • Act as a trusted advisor, providing pragmatic guidance on talent, performance, organisational design, employee relations, engagement, and workforce planning. • Support key annual people processes, including performance management, talent reviews, succession planning, and compensation cycles. • Collaborate with regional and global People & Capability partners to develop effective solutions to complex people challenges. • Drive and support organisational change initiatives, ensuring successful adoption