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Added 1 month ago
OT
Technical Architect
Open Text Corporation
Waterloo, ON
- Other
4+ years of Java / Python development coupled with REST and SOAP Frameworks.
Added 2 months ago
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Automation QA Engineer (Lead)
AlgaeCal
Remote, Canada
- Full-time
- Remote
Comfort with specialized QA spaces like API contract testing, performance profiling, load testing, and browser developer tool profiling. You don’t have to know everything. But you do need…
Added 2 months ago
A
Lead QA Developer
AlgaeCal
Remote, Canada
- Full-time
- Remote
Comfort with specialized QA spaces like API contract testing, performance profiling, load testing, and browser developer tool profiling. You don’t have to know everything. But you do need…
Added 2 months ago
Sr. Full-Stack Developer, AI Design-to-Dev
Appnovation Technologies
Toronto, ON
As a Full-Stack Developer / AI Design-to-Dev, you'll transform business ideas into production-ready applications using cutting-edge AI design tools and modern full-stack frameworks. With a…
Added 2 months ago
Intermediate Data Engineer
Northland Properties
Vancouver, BC
Proficiency with Python for data processing and automation.
Added 2 months ago
PT
Software Developer
Pleora Technologies
Ottawa, ON · Kanata, Ontario
- Full-time
Pleora is the leader in real-time connectivity for industrial automation, security & defense, and medical imaging applications with 25 years of expertise in vision applications with our…
Added 2 months ago
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Clocking Systems Engineer, Staff
Qualcomm
Toronto, ON
- Full-time
…and improving simulation and verification efficiency through automation and regression frameworks. The engineer contributes to the development of robust, high-performance clocking solutions…
Added 3 months ago
TH
Manager, Data Science (Askuity division)
The Home Depot Canada
Toronto, ON
- Full-time
Python, R, SQL, and machine learning frameworks such as TensorFlow or PyTorch
Added 3 months ago
PI
Senior Snowflake Engineer
Princeton IT Services, Inc
Toronto, ON
- Full-time
Data Engineer with strong expertise in ETL development, building Snowflake data pipelines, SQL, Python, and scalable data engineering solutions.
Added 2 months ago
F
Expert Observability Engineer
Finastra
Mississauga, ON
- Full-time
Experience with scripting and automation (e.g., PowerShell, Bash, Python).
Added 2 months ago
A
Senior Site Reliability Developer
Autodesk
Toronto, ON · AMER - Canada - Ontario - Toronto - University Ave
- Full-time
We are seeking a highly motivated and experienced Senior Site Reliability Developer (SRE) to manage critical cloud infrastructure and site reliability operations for the Autodesk Platform…
Added 2 months ago
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Lead Tools Programmer | Programmeur ou programmeuse outils Lead
NBCUniversal
Montreal, QC
- Full-time
Stay current with industry trends in tools development, automation, and developer experience.
Added 2 months ago
H
Android / Linux Networking - Software Eng
HP
Vancouver, BC
- Full-time
Familiarity with Git, CI/CD pipelines, and automation frameworks.
Added 1 month ago
GS
Senior Software Engineer
Guidewire Software
Mississauga, ON · Toronto, ON
- Full-time
Hands-on experience with JavaScript or TypeScript on the front end; experience with Python is a plus for tooling, automation, or data-related tasks.
Added 1 month ago
Lead Developer, Tools
2K
Montreal, QC
A Lead Developer focused on pipeline products and data systems. You are a multi-functional engineer who loves building software across all tech stacks. You might develop a data warehouse…
Added 2 months ago
Senior Application Security Engineer
TripleLift
Toronto, ON
Understanding of security fundamentals with relation to various cybersecurity and compliance frameworks, particularly NIST CSF, but any of PCI, SOC2, HITRUST, ISO 27001/2, or similar.
Added 2 months ago
NP
Enterprise AI Engineer
Northland Power Inc.
Toronto, ON
- Full-time
Experience with enterprise integrations, automation technologies, and platforms such as Microsoft Power Platform.
Added 2 months ago
C
Senior Data Engineer
CarePartners
London, ON · Waterloo, ON
- Full-time
…placement within the range will be determined in accordance with company policies and procedures, as well as the candidate’s knowledge, skills, qualifications, and relevant…
Added 3 months ago
L
Principal AI/ML Engineer
lululemon
Vancouver, BC
- Full-time
…platforms and services that enable the enterprise to operate with intelligence at scale. The team leads the design and delivery of a trusted unified data foundation, AI-driven data…
Added 3 months ago
B
AI Tech Lead
BoomerangFX
Mississauga, ON
- $80,000 to $90,000 CAD / year
- Full-time
Hands-on experience with OpenAI, Anthropic, LangChain, LlamaIndex, RAG, prompt engineering, vector databases, AI agents, and workflow automation
Added 3 months ago
A
AI and Automation Software Engineer
AMD
Markham, ON
- $187,200 to $280,800 CAD / year
- Full-time
Design, develop, test, and deploy automation solutions using Python and other relevant programming languages.
Added 2 months ago
P
Software Developer - Talent Community
Portfolio+
Stouffville, ON · Canada - Stouffville, ON
- Full-time
As a Software Developer with Portfolio+, you will play a key role in shaping and enhancing our financial software solutions, empowering customers to achieve their goals. Leveraging your…
Added 1 month ago
CRM & IC Manager
Sun Pharmaceutical Industries Ltd
Brampton, ON
Partner with data scientists and analysts to drive insights, machine learning deployment, and automation use cases
Added 3 months ago
C
Guidewire Automation Test Engineer
Cognizant
Toronto, ON
- $70,000 to $90,000 CAD / year
- Full-time
Strong hands-on experience building and maintaining test automation frameworks using modern languages and tools (e.g., Java, Python, Selenium, Playwright, or specialized automated testing…
Added 3 months ago
S
Applied AI Lead - Edmonton
Sia
Edmonton, AB
- Full-time
Proficiency in Python or another relevant language, plus experience with common AI/ML frameworks and at least one major cloud platform (AWS, Azure, or GCP)

TripleLift

Senior Application Security Engineer

Toronto, ON, Canada

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Job details

Experience: 5 years minimum of experience in application security, secure software development, security engineering, or a similar role.
Posting language: English
Posted: Aug 27, 2026

Original job description

About TripleLift

We're TripleLift, an advertising platform on a mission to elevate digital advertising through beautiful creative, quality publishers, actionable data and smart targeting. Through over 1 trillion monthly ad transactions, we help publishers and platforms monetize their businesses. Our technology is where the world's leading brands find audiences across online video, connected television, display and native ads. Brand and enterprise customers choose us because of our innovative solutions, premium formats, and supportive experts dedicated to maximizing their performance.

As part of the Vista Equity Partners portfolio, we are NMSDC certified, qualify for diverse spending goals and are committed to economic inclusion. Find out how TripleLift raises up the programmatic ecosystem at triplelift.com.

Overview

The Senior Application Security Engineer plays a critical role in driving secure software development and application security maturity within TripleLift's Engineering and Security organization, directly influencing how we protect our advertising platforms and the trust our publishers and advertisers place in us. In this position, you will partner closely with Engineering, Platform, Cloud Infrastructure, and Security teams to shape secure coding practices, application security tooling, vulnerability remediation, and CI/CD security, ensuring security is embedded into how we design, build, deploy, and operate our products.This is an exciting opportunity for someone who wants to build and scale an application security program at a company operating at the center of a rapidly evolving, high-stakes ad-tech landscape, while contributing meaningfully to the long-term security posture and resilience of the organization.

Responsibilities

Play a critical role in building and maintaining a global security compliance program based on NIST CSF.
Scale application security by developing automated security testing utilizing enterprise SAST, DAST, and code-review tools.
Champion SDLC to promote secure application development and infrastructure deployment and facilitate secure coding remediation activities.
Automate security testing in CI/CD pipelines to detect vulnerabilities early, including building and maintaining the pipeline integrations themselves.
Administer and drive adoption of GitHub Advanced Security (GHAS) : code scanning, secret scanning, and dependency review across engineering repositories.
Participate in threat modeling and design/architecture spec reviews to identify and mitigate security risks early in the SDLC.
Coordinate with stakeholders to develop and implement a vulnerability management program and to perform threat-hunting activities.
Own and conduct internal penetration testing and vulnerability assessments of applications and infrastructure, and validate findings from third-party pentest engagements.
Monitor and respond to application-layer security threats like API abuses, business logic flaws, and common web vulnerabilities.
Collaborate with product and engineering teams to ensure security is a key consideration in software design and architecture.
Enhance application security posture by working with cross-functional teams to implement proper authentication, authorization, and data protection mechanisms.
Enhance and facilitate security incident handling activities.
Evangelize security best practices and provide education and awareness to company employees. Develop and implement secure coding guidelines and conduct secure development training for engineers.
Evaluate and continuously improve the maturity of the security program through the deployment and management of various security tools and processes.

Education & Requirements

5 years minimum of experience in application security, secure software development, security engineering, or a similar role.
Strong understanding of secure coding practices and ability to guide developers on remediation strategies.
Experience with GitHub Advanced Security (GHAS), including Code Scanning (SAST), Secret Scanning, and Dependency Review.
Proficiency in SAST, DAST, and SCA tools (e.g., CodeQL, Burp Suite, OWASP ZAP, Snyk, Checkmarx, Veracode).
Hands-on experience integrating security testing tools into CI/CD pipelines for automated security scanning, including designing and building pipeline workflows.
Hands-on penetration testing / offensive security experience across web applications, APIs, or cloud infrastructure.
Knowledge of common application security vulnerabilities and mitigations (OWASP Top 10, CWE, business logic flaws, API security).
Ability to perform threat modeling and participate in design/architecture spec reviews to assess security risks in applications and services.
Experience conducting security code reviews across various programming languages (e.g., Python, Java, TypeScript, Go).
Understanding of security fundamentals with relation to various cybersecurity and compliance frameworks, particularly NIST CSF, but any of PCI, SOC2, HITRUST, ISO 27001/2, or similar.
Strong understanding of AWS security services and controls (IAM, VPC, KMS, GuardDuty, CloudTrail) and experience securing cloud-native environments and workloads, with the ability to deploy security tools within them.
Takes ownership of projects, works independently with minimal oversight, and delivers results in a fast-paced environment while balancing multiple priorities.
Continuously learns, adapts, and values correctness, efficiency, and constructive feedback.

Preferred:

Experience in the ad-tech / programmatic advertising industry, or another high-scale, real-time environment.
Preferred: Familiarity with using AI/LLM-based tools (e.g., Claude or similar) for threat intelligence, alert triage, or security automation.
Holds a cybersecurity certification, e.g., OSCP, GWAPT, CISSP, CISA, etc.

Life at TripleLift

At TripleLift, we’re a team of great people who like who they work with and want to make everyone around them better. This means being positive, collaborative, and compassionate. We hustle harder than the competition and are continuously innovating.

Learn more about TripleLift and our culture by visiting our LinkedIn Life page.

Establishing People, Culture and Community Initiatives

At TripleLift, we are committed to building a culture where people feel connected, supported, and empowered to do their best work. We invest in our people and foster a workplace that encourages curiosity, celebrates shared values, and promotes meaningful connections across teams and communities. We want to ensure the best talent of every background, viewpoint, and experience has an opportunity to be hired, belong, and develop at TripleLift. Through our People, Culture, and Community initiatives, we aim to create an environment where everyone can thrive and feel a true sense of belonging.

Privacy Policy

Please see our Privacy Policies on our TripleLift and 1plusX websites.

TripleLift does not accept unsolicited resumes from any type of recruitment search firm. Any resume submitted in the absence of a signed agreement will become the property of TripleLift and no fee shall be due.

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More about this job

Responsibilities

The Senior Application Security Engineer will drive secure software development and application security maturity across the organization. They will partner with engineering and security teams to implement automated security testing, vulnerability management, and secure coding practices.

Requirements

Candidates must have at least 5 years of experience in application security or secure software development. Proficiency in security tools, CI/CD integration, and cloud security fundamentals is required.

Skills

Application Security
Secure Coding
SAST
DAST
CI/CD Pipelines
GitHub Advanced Security
Vulnerability Management
Penetration Testing
Threat Modeling
AWS Security
Python
Java
TypeScript
Go
NIST CSF
API Security

Visa sponsorship

Not detected in the job text

Keywords

Application Security
NIST CSF
SAST
DAST
SCA
GitHub Advanced Security
CI/CD
Penetration Testing
Threat Modeling
AWS
Python
Java
TypeScript
Go
OWASP Top 10
API Security
Vulnerability Management
Cloud Security
Ad-tech
Programmatic Advertising
Compliance
CodeQL
Burp Suite
Snyk
Checkmarx
Veracode
IAM
VPC
KMS
GuardDuty

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