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Added 2 days ago
C
VP Senior Software Engineer
Citi
Mississauga, ON
- Full-time
Proficient in core software development technologies including Java 8+, message queues, RDBMS and REST APIs
Added 2 days ago
Middle/Senior Forward Deployed Engineer (Python, AI)
Exadel
Canada
For the Senior Forward Deployed Engineer level, senior-level experience, including technical delivery leadership across multidisciplinary teams or pods.
Added 2 days ago
AT
AI Engineer
Altitude Technology Solutions Inc
Toronto, ON
- Contract
…orchestration, policy enforcement) following MCP protocol. Engineer robust guardrails for safety, compliance, and least-privilege…
Added 2 days ago
T
Software Engineer I (Java)
TD
London, ON · Toronto, ON
- Full-time
Global Technology & Solutions, Servicing Platform's team is looking for a highly motivated Software Engineer to support our Retail Branch Service applications.
Added 2 days ago
PG
SDET
Pacer Group
Toronto, ON
- $80,000 to $85,000 CAD / year
- Full-time
Job Title: Software Development Engineer in Test (SDET)
Added 3 days ago
M
Senior Software Engineer
Mastercard
Toronto, ON
- Full-time
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…
Added 3 days ago
M
Software Engineer II
Microsoft
Vancouver, BC
- Full-time
As a Software Engineer II on the Excel Agent team, you will help design, build, and ship features that combine Excel’s core capabilities with agentic AI. You will own feature…
Added 3 days ago
M
Software Engineer II
Microsoft
Vancouver, BC
- Full-time
As a Software Engineer II on the Excel Agent team, you will help design, build, and ship features that combine Excel’s core capabilities with agentic AI. You will own feature…
Added 3 days ago
M
Senior Software Engineer
Microsoft
Vancouver, BC
- Full-time
As a Senior Software Engineer on the Excel Agent team, you will design and deliver end-to-end features that combine Excel capabilities with agentic AI. You will own technical areas spanning…
Added 3 days ago
BB
Data Engineer
Breathaplasta by Adaptavate
Montreal, QC · Urban agglomeration of Montreal, QC
- Full-time
To succeed in our mission, we are looking for a Data Engineer who will work with our technical teams to translate raw data into information that drives business decision making. This…
Added 3 days ago
T
Quality Engineer II
TD
Toronto, ON
- Full-time
Strong working knowledge of Java – Ability to write code/ functions for complex scenarios, integration points and supporting multiple technologies (legacy and digital) (5 years)
Added 3 days ago
C
AI Data Engineer
Citi
Mississauga, ON
- Full-time
We are seeking a highly motivated AI Data Engineer to design, develop, and deploy AI-powered applications and agentic solutions that enhance business processes and client delivery…
Added 3 days ago
M
Software Engineer II (Backend _ Java)
Mastercard
Vancouver, BC
- Full-time
Software Engineer II (Backend _ Java)Who is Mastercard?
Added 3 days ago
M
Software Engineer II (Backend - Java)
Mastercard
Vancouver, BC
- Full-time
Software Engineer II (Backend - Java)Who is Mastercard?
Added 3 days ago
AI
AI Platform Engineer with DevOps Experience
Astra-North Infoteck Inc. ~ Conquering today’s challenges, achieving tomorrow’s vision!
Halifax, NS
- Full-time
AI Platform Engineer – DevOps, CI/CD, LLMOps & MLOps
Added 3 days ago
IG
Senior DevOps Engineer (Azure)
Insight Global
Ottawa, ON
- $50 to $55 CAD / hour
- Contract
We are seeking a Senior DevOps Engineer to own and evolve the cloud infrastructure and CI/CD platform for our client's satellite constellation. You will be responsible for the reliability,…
Added 3 days ago
E
Information Security Senior Engineer - Identity Governance
Equinix
Toronto, ON
- Full-time
We are seeking a SailPoint IdentityNow Engineer to join the Identity Security team. This role will lead the design, implementation, and operation of modern Identity Governance (IGA)…
Added 3 days ago
BS
AI DevOps Platform Engineer
BULLTECH SOLUTIONS LTD
Halifax, NS
- Full-time
Added 3 days ago
ND
Software Engineer
Newfold Digital
Halifax, NS · NS
- Full-time
We are seeking a highly skilled and passionate Software Engineer with 3 - 5 years of professional experience to join our dynamic development team. The ideal candidate will have strong…
Added 4 days ago
P
Senior Software Engineer - Java
PointClickCare
Mississauga, ON
- $142,000 to $158,000 CAD / year
- Full-time
Background with Spring Boot and Java ecosystem
Added 4 days ago
Senior AI Platform Engineer
Motive
Toronto, ON
Senior engineer who ships production software and AI systems on cloud infrastructure that is reliable, secure, and cost-disciplined. You design applications and services, operate inference…
Added 4 days ago
P
Java Software Engineer
ProxyLink
Toronto, ON
- $100 to $105 CAD / hour
- Contract
…experience across Microsoft Dynamics 365, Power Platform, Azure, Java, and modern web technologies, including Node.js, Next.js, and…
Added 4 days ago
Q
FY27 Intern - Display Systems Engineering Internship - Canada (16 months)
Qualcomm
Markham, ON
- Full-time
The Display Systems team is looking for a Display Software Engineer (Internship) interested in developing software and tools for mobile and embedded devices. The Display Systems team is…
Added 4 days ago
L
Cybersecurity Engineer - IAM
lululemon
Vancouver, BC
- Full-time
As a Cybersecurity Engineer, you will own security engineering for specific systems and platforms, designing and implementing security controls that balance protection, performance, and…
Added 4 days ago
Developer Experience Engineer, AWS Developer Experience
Amazon
Vancouver, BC
We are looking for a Developer Experience Engineer to shape what great agent-driven development looks like on AWS. You will build with agents across AWS services, find the friction, and…

Mastercard

Senior Software Engineer

Toronto, ON, Canada

Full-time

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Job details

Job type: Full-time
Posting language: English
Posted: Oct 23, 2026

Original job description

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 EngineerOverview:

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.

The Role :

• 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 reasonable_accommodation@mastercard.com 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.

In line with Mastercard’s 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.

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More about this job

Responsibilities

The Senior Software Engineer will design, develop, and maintain high-quality, scalable software solutions while driving technical initiatives from concept to production. They will also collaborate with cross-functional teams to ensure system reliability, security, and operational excellence throughout the software lifecycle.

Requirements

Candidates must have a bachelor's degree in a relevant field and expert-level proficiency in Java and Spring-based development. Strong experience with cloud-native applications, distributed systems, and modern CI/CD environments is required.

Skills

Java
Spring
System Design
RESTful APIs
Cloud-native Applications
Azure
Git
CI/CD
Observability
Distributed Systems
Data Modeling
Security
Troubleshooting
Mentoring
Software Lifecycle Management

Visa sponsorship

Not detected in the job text

Keywords

Software Engineering
Java
Spring
RESTful APIs
Cloud-native
Azure
Distributed Systems
Git
CI/CD
Observability
Data Modeling
Security
Fintech
Payments
Fraud Prevention
System Design
Automation
Monitoring
Debugging
Mentoring
Scalability
Reliability
Production-grade
API
Infrastructure
Software Lifecycle
Event-driven Systems
Batch Processing
Workflow Orchestration
AI-assisted Engineering

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