Leads the design, development, and delivery of scalable full-stack Java applications using React or Angular. Establishes architecture, technical standards, APIs, microservices, security, resiliency, and zero-downtime production practices. Collaborates with product and cross-functional teams, provides technical leadership, estimates scope and timelines, and supports project delivery. The role also drives cloud-native development, DevOps automation, observability, release management, and adoption of generative AI solutions.
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
Lead Software Engineer (Java Full stack developer)
Overview
Mastercard is a global technology company in the payments industry. Our mission is to connect and power an inclusive, digital economy that benefits everyone, everywhere by making transactions safe, simple, smart, and accessible. Using secure data and networks, partnerships and passion, our innovations and solutions help individuals, financial institutions, governments, and businesses realize their greatest potential. Our decency quotient, or DQ, drives our culture and everything we do inside and outside of our company. With connections across more than 210 countries and territories, we are building a sustainable world that unlocks priceless possibilities for all.
Mastercard's Business & Market Insights (B&MI) group empowers organizations to achieve growth & innovation goals by providing unparalleled data-driven insights and advanced analytics. By leveraging proprietary data and global expertise, B&MI helps businesses make smarter, more informed decisions that drive profitability and success. We turn complex data into actionable strategies that lead to better outcomes and sustained competitive advantage.
We are currently looking for a 'Lead Software Engineer' for Payment Reconciliation Intelligence Program, within B&MI group, to design scalable architecture and lead development of the new business requirements for product used by global B2B customers.
Role and Responsibility
As a Lead SDE you will design, develop and lead full-stack Java scalable applications with React or Angular as the frontend.• Act as senior most engineers in the team to determine everything from design choices to technical standards, such as platforms and coding standards.• Design and implement software aligned with Mastercard's Enterprise Architecture and services.
Write high-quality, maintainable code that meets business needs and adheres to timelines.• Collaborate with cross functional teams - Product teams to understand the requirements, define product, identify solution, propose ideas and provide technical thought leadership.• Provide detailed cost and time estimates, define technical scope and requirements, and assist project managers in managing scope throughout the project lifecycle.• Ensure system design supports zero downtime in production.• Address operational and business concerns to ensure consistent delivery of quality services.• Lead highly focused team of engineers with an eye on innovation and AI adoption
-All About You-
Education and professional experience
Bachelor's or Master's degree in Information Technology, Computer Science, Engineering, or a related discipline.
Strong verbal and written communication skills with the ability to collaborate effectively across multiple organizational levels.
Around 9 years of work experience in the software engineering role.
Technical Expertise
Strong proficiency in Java 17+, Spring Boot, Spring Framework, Hibernate, and modern database technologies including Oracle, SQL Server, PostgreSQL, Redis, MongoDB, and Elasticsearch.
Proven experience designing, developing, and leading applications built on microservices-based architectures.
Hands-on experience with messaging and event-driven platforms such as Kafka, RabbitMQ, AWS SQS, or other cloud-native messaging solutions.
Front-end development experience using React JS (16+) or Angular (14+).
Experience designing and developing APIs using OpenAPI specifications and RESTful best practices.
Strong working knowledge of HTML, JavaScript, Node.js, UNIX shell scripting, Python, and Groovy scripting.
Understanding of modern application security, scalability, resiliency, and performance engineering practices.
Tools & Methodologies
Proficiency with build and dependency management tools such as Maven and Gradle.
Experience with automation and configuration management tools including Chef and Ansible.
Hands-on experience with Jenkins, SonarQube, CI/CD pipelines, and Agile software development methodologies.
Strong understanding of release management practices including Canary, Blue-Green, and Rolling deployments.
Infrastructure & Cloud
Extensive experience with public cloud platforms (AWS, Azure, or GCP) and cloud-native application development.
Strong expertise in containerization and orchestration technologies including Docker, Kubernetes, and OpenShift.
Deep understanding of DevOps practices, infrastructure automation, deployment strategies, and operational excellence in cloud environments.
Exposure to monitoring and observability tools such as Splunk, ELK Stack, and related logging platforms.
AI & Emerging Technologies
Exposure to Generative AI and Large Language Model (LLM) based solutions, including integrating AI services through APIs and leveraging AI-assisted development tools such as GitHub Copilot and enterprise AI platforms.
Familiarity with AI-driven application patterns such as Retrieval-Augmented Generation (RAG), intelligent workflows, agentic solutions, and prompt engineering concepts for enterprise applications.
Good to have Skills
Experience working across multiple programming languages such as Java, Scala, C#, and Python.
Familiarity with workflow orchestration and automation platforms including Netflix Conductor, Apache Airflow, Camunda, and N8N.
Knowledge of OpenTelemetry and distributed tracing concepts.
Familiarity with business rules engines such as Drools and EasyRules.
Strong understanding of cryptographic concepts including PKI infrastructure, hashing, encryption, consensus algorithms, and virtual machine architectures.
Experience with Infrastructure as Code (IaC) and infrastructure automation frameworks.
Corporate Security Responsibility
All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:
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
Lead Software Engineer (Java Full stack developer)
Overview
Mastercard is a global technology company in the payments industry. Our mission is to connect and power an inclusive, digital economy that benefits everyone, everywhere by making transactions safe, simple, smart, and accessible. Using secure data and networks, partnerships and passion, our innovations and solutions help individuals, financial institutions, governments, and businesses realize their greatest potential. Our decency quotient, or DQ, drives our culture and everything we do inside and outside of our company. With connections across more than 210 countries and territories, we are building a sustainable world that unlocks priceless possibilities for all.
Mastercard's Business & Market Insights (B&MI) group empowers organizations to achieve growth & innovation goals by providing unparalleled data-driven insights and advanced analytics. By leveraging proprietary data and global expertise, B&MI helps businesses make smarter, more informed decisions that drive profitability and success. We turn complex data into actionable strategies that lead to better outcomes and sustained competitive advantage.
We are currently looking for a 'Lead Software Engineer' for Payment Reconciliation Intelligence Program, within B&MI group, to design scalable architecture and lead development of the new business requirements for product used by global B2B customers.
Role and Responsibility
As a Lead SDE you will design, develop and lead full-stack Java scalable applications with React or Angular as the frontend.• Act as senior most engineers in the team to determine everything from design choices to technical standards, such as platforms and coding standards.• Design and implement software aligned with Mastercard's Enterprise Architecture and services.
Write high-quality, maintainable code that meets business needs and adheres to timelines.• Collaborate with cross functional teams - Product teams to understand the requirements, define product, identify solution, propose ideas and provide technical thought leadership.• Provide detailed cost and time estimates, define technical scope and requirements, and assist project managers in managing scope throughout the project lifecycle.• Ensure system design supports zero downtime in production.• Address operational and business concerns to ensure consistent delivery of quality services.• Lead highly focused team of engineers with an eye on innovation and AI adoption
-All About You-
Education and professional experience
Bachelor's or Master's degree in Information Technology, Computer Science, Engineering, or a related discipline.
Strong verbal and written communication skills with the ability to collaborate effectively across multiple organizational levels.
Around 9 years of work experience in the software engineering role.
Technical Expertise
Strong proficiency in Java 17+, Spring Boot, Spring Framework, Hibernate, and modern database technologies including Oracle, SQL Server, PostgreSQL, Redis, MongoDB, and Elasticsearch.
Proven experience designing, developing, and leading applications built on microservices-based architectures.
Hands-on experience with messaging and event-driven platforms such as Kafka, RabbitMQ, AWS SQS, or other cloud-native messaging solutions.
Front-end development experience using React JS (16+) or Angular (14+).
Experience designing and developing APIs using OpenAPI specifications and RESTful best practices.
Strong working knowledge of HTML, JavaScript, Node.js, UNIX shell scripting, Python, and Groovy scripting.
Understanding of modern application security, scalability, resiliency, and performance engineering practices.
Tools & Methodologies
Proficiency with build and dependency management tools such as Maven and Gradle.
Experience with automation and configuration management tools including Chef and Ansible.
Hands-on experience with Jenkins, SonarQube, CI/CD pipelines, and Agile software development methodologies.
Strong understanding of release management practices including Canary, Blue-Green, and Rolling deployments.
Infrastructure & Cloud
Extensive experience with public cloud platforms (AWS, Azure, or GCP) and cloud-native application development.
Strong expertise in containerization and orchestration technologies including Docker, Kubernetes, and OpenShift.
Deep understanding of DevOps practices, infrastructure automation, deployment strategies, and operational excellence in cloud environments.
Exposure to monitoring and observability tools such as Splunk, ELK Stack, and related logging platforms.
AI & Emerging Technologies
Exposure to Generative AI and Large Language Model (LLM) based solutions, including integrating AI services through APIs and leveraging AI-assisted development tools such as GitHub Copilot and enterprise AI platforms.
Familiarity with AI-driven application patterns such as Retrieval-Augmented Generation (RAG), intelligent workflows, agentic solutions, and prompt engineering concepts for enterprise applications.
Good to have Skills
Experience working across multiple programming languages such as Java, Scala, C#, and Python.
Familiarity with workflow orchestration and automation platforms including Netflix Conductor, Apache Airflow, Camunda, and N8N.
Knowledge of OpenTelemetry and distributed tracing concepts.
Familiarity with business rules engines such as Drools and EasyRules.
Strong understanding of cryptographic concepts including PKI infrastructure, hashing, encryption, consensus algorithms, and virtual machine architectures.
Experience with Infrastructure as Code (IaC) and infrastructure automation frameworks.
Corporate Security Responsibility
All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:
- Abide by Mastercard's security policies and practices;
- Ensure the confidentiality and integrity of the information being accessed;
- Report any suspected information security violation or breach, and
- Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines.
Mastercard London, England Office
Mastercard London, UK Office
1 Angel Lane, London, United Kingdom, EC4R 3AB
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