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Mastercard

Senior Software Engineer

Mastercard

Published 17 Jan 2026
Toronto, Canada
111K - 160K CAD Annual
Full Time
Freelancer

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Role Highlights

Languages used

Java
JavaScript
Python
SQL
HTML
CSS

Key skills

Data Engineer
Data Analysis
Prompt Engineering
Integrations
Full Stack
Design Patterns
Product Owner
Unit Testing
Information Security
Agile
Architecture
Automation
Debugging
Pivotal
CAD

Tools, Libraries and Frameworks

Spring Boot
Rest
Hive
Slack
Hadoop
Angular

Description

\\\\Our Purpose\\\\ \Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, were 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 Who is Mastercard? 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. Overview The Mastercard Cyber and Security Services program team is looking for a Senior Software Engineer to have an opportunity to build new and extend current fraud prevention services. This exciting area within Mastercard is growing fast and creating cutting edge technologies that prevent fraud across the globe. This is an agile team that will be balanced across full stack engineering and data engineering. The team will also provide leadership for other teams in using strong architecture and technology delivery practices that create the best solutions. The Senior Software Development Engineer will play a critical role in creating new products and new functionality. Role Provide detailed designs and solutions to complex business problems. Educate team members on the path forward to solving the problem. Provide detailed technical analysis of product or application hardware and software to ensure that business and functional requirements can be met Perform analysis of system requirements, elaborate into user stories and acceptance criteria in an Agile methodology format Automate build, operate, and run aspects of software. Drive integration of services focusing on customer journey and experience Hunger for Systems and Technical knowledge constantly analyzing and innovating new, better approaches to our systems Perform demos/acceptance discussions in interacting with Product Owners. Drive adoption of technology standards, review coding, test and automation work of team members Build and modify applications using a mix of Java, JavaScript, Python, SQL and Spark Actively work with testers and other engineers to ensure requirements are met and tested from end-to-end All About You The ideal candidate would have the following PRIMARY skills: Proven experience in technical requirements gathering and documentation Advanced in Java development, design patterns, threading, unit testing, debugging and Spring Boot Mid-level experience with REST service design and development Experience with data analysis High-energy, detail-oriented and proactive with the ability to function under pressure in a collaborative (Agile) environment High degree of initiative and self-motivation with a willingness and ability to learn and take on challenging opportunities Strong communication skills, both verbal and written, with strong relationship, collaborative and organization skills Strong SQL skills Experience with cloud technologies such as Pivotal Cloud Foundry Some experience with Hadoop, Spark, Hive, Impala Some experience with JavaScript, HTML, CSS, Angular or React Comfortable sharing ideas, asking questions and seeking help through tools like Teams or Slack. The ideal candidate may also possess some of these SECONDARY skills: Experience with high performance, high availability transaction processing systems and multi-tiered web applications Security experience Experience with queueing technologies such as Kafka \\#LI-FT1 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 reasonable\\ 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 Mastercards 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 Mastercards guidelines. In line with Mastercards total compensation philosophy and assuming that the job will be performed in Canada, the successful candidate will be offered a competitive pay based on location, experience and other qualifications for the role and may be eligible to participate in a discretionary annual incentive program. This posting reflects one or more current openings on our team. \\\\Pay Ranges\\\\ Toronto, Canada: $111,000 - $160,000 CAD

Required Qualifications and Skills

The role requires proven experience in technical requirements gathering and documentation. Advanced proficiency in Java development, including design patterns, threading, unit testing, and debugging, is necessary. Mid-level experience with REST service design and development, along with experience in data analysis and strong SQL skills, is also required. Familiarity with cloud technologies like Pivotal Cloud Foundry and some experience with Hadoop, Spark, Hive, Impala, JavaScript, HTML, CSS, Angular, or React are expected. The candidate should be comfortable sharing ideas and seeking help through collaboration tools.

Disclaimer

Disclaimer: Job and company description information and some of the data fields may have been generated via GPT-4 summarisation and could contain inaccuracies. The full external job listing link should always be relied on for authoritative information.

About the company

Mastercard

Size

38185

HQ

Purchase, US

Description

MasterCard is framed as a technology company in the global payments business, emphasizing its role in connecting various stakeholders worldwide and enabling the use of secure and convenient electronic forms of payment. It describes its mission as working to connect and power an inclusive digital economy that benefits everyone everywhere by ensuring transactions are safe, simple, smart, and accessible. The company culture is driven by a decency quotient (DQ), cultivating an inclusive environment that values individual strengths, views, and experiences. It leverages secure data, networks, partnerships, and a passion for innovation to support various entities, including individuals, financial institutions, governments, and businesses, in realizing their potential.

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