Design, develop, deploy, and operate secure, scalable backend services. Drive technical initiatives, contribute to architecture, troubleshoot production issues, participate in on-call, and promote observability, CI/CD, and secure engineering practices while mentoring peers.
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 (Backend - Java)
Overview
Ethoca, a Mastercard company, is transforming the way merchants and card issuers work together to combat fraud and improve the digital commerce experience. We build highly scalable, secure, and resilient technology that powers collaboration across the global payments ecosystem.
We are looking for a Senior Software Engineer who thrives on solving complex technical problems, takes ownership of outcomes, and enjoys building production-grade software that operates at scale. This role is ideal for an engineer who can independently drive initiatives, influence technical decisions, mentor others, and contribute to a culture of engineering excellence.
Mastercard powers an inclusive digital economy by making transactions safe, simple, smart, and accessible. Through secure technology, trusted partnerships, and continuous innovation, we help individuals, businesses, and governments realize their greatest potential.
About the Role :
As a Senior Software Engineer, you will design, develop, and operate secure, scalable software solutions that support critical business capabilities and customer outcomes.
You will: • Design, develop, test, deploy, and maintain high-quality software solutions that meet Mastercard standards for security, reliability, scalability, and operational excellence. • Independently drive technical initiatives from concept through production, navigating ambiguity, managing dependencies, and delivering measurable business outcomes. • Collaborate with product, engineering, operations, security, and compliance partners to translate business needs into well-designed technical solutions. • Contribute to architecture and design decisions for distributed systems, APIs, integrations, and platform capabilities, balancing business priorities with long-term maintainability. • Own software services throughout their lifecycle, including implementation, deployment, monitoring, incident response, and continuous improvement. • Troubleshoot complex application and production issues using logs, metrics, traces, debugging tools, and systematic root cause analysis techniques. • Participate in on-call support, incident reviews, and operational readiness activities while driving improvements that enhance reliability and reduce operational toil. • Apply secure-by-design and privacy-conscious engineering practices when working with sensitive financial and consumer data. • Foster engineering excellence through code reviews, technical mentoring, knowledge sharing, and promotion of development best practices. • Continuously improve automation, testing, observability, developer experience, and software delivery processes. • Use approved AI-assisted engineering tools responsibly to improve productivity while applying sound engineering judgment, rigorous validation, and strong protection of confidential or sensitive information.
All About You :• Bachelor's degree in Computer Science, Information Technology, a related field, or equivalent practical experience. • Strong foundation in software engineering principles including system design, source control, testing, debugging, performance analysis, maintainability, and secure software development. • Expert-level proficiency with Java (17+) and Spring-based application development. • Experience designing and building RESTful APIs and service integrations. • Experience developing cloud-native applications and distributed systems, preferably in Azure environments. • Proficient with distributed source control systems (e.g., Git), including branching strategies, code review workflows, conflict resolution, and release management practices. • Experience working within modern CI/CD environments, including build automation, deployment pipelines, release validation, and operational support. • Demonstrated ability to investigate and resolve complex production issues through structured troubleshooting, evidence-based decision-making, and root cause analysis. • Strong understanding of observability practices including logging, monitoring, metrics, dashboards, distributed tracing, and reliability-oriented alerting. • Experience with modern data platforms and databases, including data modeling, scalability, performance, and operational trade-offs. • Working knowledge of authentication, authorization, secrets management, vulnerability management, and secure handling of sensitive data in regulated environments. • Strong ownership mindset with a proven ability to take initiative, drive work to completion, remove blockers, and deliver results with limited supervision. • Ability to collaborate effectively across teams, influence technical decisions, and communicate complex concepts to both technical and non-technical stakeholders. • Comfortable using approved AI-assisted development tools and applying critical judgment to validate AI-generated outputs before production use. • Committed to continuous learning, engineering excellence, and helping others grow.
Preferred Qualifications :• Experience in payments, fintech, commerce, banking, fraud prevention, or other regulated industries. • Experience building high-throughput, highly available, or event-driven systems. • Experience with batch processing, workflow orchestration, or large-scale data pipelines. • Experience incorporating AI-enabled capabilities into products or engineering workflows.
Mastercard is a merit-based, inclusive, equal opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law. We hire the most qualified candidate for the role. In the US or Canada, if you require accommodations or assistance to complete the online application process or during the recruitment process, please contact [email protected] and identify the type of accommodation or assistance you are requesting. Do not include any medical or health information in this email. The Reasonable Accommodations team will respond to your email promptly.
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
Senior Software Engineer (Backend - Java)
Overview
Ethoca, a Mastercard company, is transforming the way merchants and card issuers work together to combat fraud and improve the digital commerce experience. We build highly scalable, secure, and resilient technology that powers collaboration across the global payments ecosystem.
We are looking for a Senior Software Engineer who thrives on solving complex technical problems, takes ownership of outcomes, and enjoys building production-grade software that operates at scale. This role is ideal for an engineer who can independently drive initiatives, influence technical decisions, mentor others, and contribute to a culture of engineering excellence.
Mastercard powers an inclusive digital economy by making transactions safe, simple, smart, and accessible. Through secure technology, trusted partnerships, and continuous innovation, we help individuals, businesses, and governments realize their greatest potential.
About the Role :
As a Senior Software Engineer, you will design, develop, and operate secure, scalable software solutions that support critical business capabilities and customer outcomes.
You will: • Design, develop, test, deploy, and maintain high-quality software solutions that meet Mastercard standards for security, reliability, scalability, and operational excellence. • Independently drive technical initiatives from concept through production, navigating ambiguity, managing dependencies, and delivering measurable business outcomes. • Collaborate with product, engineering, operations, security, and compliance partners to translate business needs into well-designed technical solutions. • Contribute to architecture and design decisions for distributed systems, APIs, integrations, and platform capabilities, balancing business priorities with long-term maintainability. • Own software services throughout their lifecycle, including implementation, deployment, monitoring, incident response, and continuous improvement. • Troubleshoot complex application and production issues using logs, metrics, traces, debugging tools, and systematic root cause analysis techniques. • Participate in on-call support, incident reviews, and operational readiness activities while driving improvements that enhance reliability and reduce operational toil. • Apply secure-by-design and privacy-conscious engineering practices when working with sensitive financial and consumer data. • Foster engineering excellence through code reviews, technical mentoring, knowledge sharing, and promotion of development best practices. • Continuously improve automation, testing, observability, developer experience, and software delivery processes. • Use approved AI-assisted engineering tools responsibly to improve productivity while applying sound engineering judgment, rigorous validation, and strong protection of confidential or sensitive information.
All About You :• Bachelor's degree in Computer Science, Information Technology, a related field, or equivalent practical experience. • Strong foundation in software engineering principles including system design, source control, testing, debugging, performance analysis, maintainability, and secure software development. • Expert-level proficiency with Java (17+) and Spring-based application development. • Experience designing and building RESTful APIs and service integrations. • Experience developing cloud-native applications and distributed systems, preferably in Azure environments. • Proficient with distributed source control systems (e.g., Git), including branching strategies, code review workflows, conflict resolution, and release management practices. • Experience working within modern CI/CD environments, including build automation, deployment pipelines, release validation, and operational support. • Demonstrated ability to investigate and resolve complex production issues through structured troubleshooting, evidence-based decision-making, and root cause analysis. • Strong understanding of observability practices including logging, monitoring, metrics, dashboards, distributed tracing, and reliability-oriented alerting. • Experience with modern data platforms and databases, including data modeling, scalability, performance, and operational trade-offs. • Working knowledge of authentication, authorization, secrets management, vulnerability management, and secure handling of sensitive data in regulated environments. • Strong ownership mindset with a proven ability to take initiative, drive work to completion, remove blockers, and deliver results with limited supervision. • Ability to collaborate effectively across teams, influence technical decisions, and communicate complex concepts to both technical and non-technical stakeholders. • Comfortable using approved AI-assisted development tools and applying critical judgment to validate AI-generated outputs before production use. • Committed to continuous learning, engineering excellence, and helping others grow.
Preferred Qualifications :• Experience in payments, fintech, commerce, banking, fraud prevention, or other regulated industries. • Experience building high-throughput, highly available, or event-driven systems. • Experience with batch processing, workflow orchestration, or large-scale data pipelines. • Experience incorporating AI-enabled capabilities into products or engineering workflows.
Mastercard is a merit-based, inclusive, equal opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law. We hire the most qualified candidate for the role. In the US or Canada, if you require accommodations or assistance to complete the online application process or during the recruitment process, please contact [email protected] and identify the type of accommodation or assistance you are requesting. Do not include any medical or health information in this email. The Reasonable Accommodations team will respond to your email promptly.
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.
Similar Jobs at Mastercard
Blockchain • Fintech • Payments • Consulting • Cryptocurrency • Cybersecurity • Quantum Computing
Lead the design and development of machine learning models, collaborating with teams to optimize solutions and mentor junior members while ensuring technical excellence.
Top Skills:
AzureBitbucketCosmos DbDatabricksFastapiGitJSONKerasMlopsNumpyPandasPostgresPysparkPythonSklearnSQLTorchTransformersUnix
Blockchain • Fintech • Payments • Consulting • Cryptocurrency • Cybersecurity • Quantum Computing
The VP will lead enterprise sales strategy, manage senior sales professionals, build customer relationships, and drive revenue growth for Mastercard's key partners in Canada.
Top Skills:
Cybersecurity SolutionsData & AnalyticsFinancial ServicesPayments
Blockchain • Fintech • Payments • Consulting • Cryptocurrency • Cybersecurity • Quantum Computing
The role involves strategic account management, developing new business opportunities, negotiating contracts, and leveraging internal resources to enhance customer value for financial institutions.
Top Skills:
ExcelPowerPointSalesforce
What you need to know about the Ottawa Tech Scene
The capital city of Canada and the nation's fourth-largest urban area, Ottawa has proven a rapidly growing global tech hub. With over 1,800 tech companies, many of which are leaders in their sectors, the city's tech talent now makes up more than 13 percent of its total workforce. This growth is driven not only by the big players like UL Solutions and Dropbox, but also by a thriving startup ecosystem, as new businesses emerge to follow in the footsteps of those that came before them.
