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Expert System Engineering

Thornhill, Canada

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innovate

Discover the undiscoverable.

"AT&T allows me to work on projects that will be seen by millions of customers."

Megan T. — Sr. Specialist, Software Engineer

"I find it incredibly rewarding to be out and see customers enjoying a product I spent my time perfecting."

Technology

Don't just imagine the future. Create it.

This position is only located in the location(s) posted. No relocation is offered.

Join AT&T and help shape the future of communications and technology that connect the world. We value innovators who seek to explore the unknown and challenge the status quo. Bring your bold ideas and fearless spirit to redefine connectivity and transform how people share stories and experiences. At AT&T, you won’t just imagine the future—you’ll build it.

What you’ll do:
System Design and Architecture: Design and create scalable, high-performance, and reliable system architectures and platforms.
Requirements Analysis and Integration: Translate business needs into technical specifications and ensure seamless integration of system components.
Technical Leadership and Collaboration: Provide guidance to development teams, align technical solutions with business objectives, and collaborate with stakeholders.
Performance, Reliability, and Troubleshooting: Conduct performance and reliability analysis, and resolve system issues and bottlenecks.
Documentation, Security, and Continuous Improvement: Maintain detailed system documentation, ensure security and compliance, and stay updated with industry trends for ongoing improvement.

What you’ll need:

Design applications, platforms or services by translating core business requirements into comprehensive technical solutions, ensuring functional, performance, and reliability through hands-on system design, technical enablement, and strategic decision-making across platform, network, software, and cloud environments.

What you’ll bring:

An expert in their field, leveraging advanced knowledge to shape company objectives and achieve goals. Leads impactful, wide-scope projects, creatively solving complex problems and developing policy changes. Identifies innovative solutions with significant operational impact. Works autonomously, frequently engaging with senior and executive leaders and serving as a strategic advisor.

TCP Career Step Differentiator: Expert in designing the most complex systems and platforms for strategic clients. Creates strategic solutions for our highest value, long term solutions. Must have a strong understanding of computers (hardware and OS), network, and software architecture. Help drive executive decisions and be skilled in articulating business problems, solutions, and impact.

Education/Experience: Master's degree (MS/MA) desired in Computer Science. 10+ years of related experience.

Our Expert System Engineering, earns between $180,400.00 - $270,500.00 CAD   Annual, Not to mention all the other amazing rewards that working at AT&T offers. Individual starting salary within this range may depend on geography, experience, expertise, and education/training.  

Ready to join our team? Apply today.

Weekly Hours:

40

Time Type:

Regular

Location:

Toronto, Ontario, Canada

It is the policy of AT&T to provide equal employment opportunity (EEO) to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, sexual orientation, gender identity and/or expression, genetic information, marital status, status with regard to public assistance, veteran status, or any other characteristic protected by federal, state or local law. In addition, AT&T will provide reasonable accommodations for qualified individuals with disabilities. AT&T is a fair chance employer and does not initiate a background check until an offer is made.



Job ID R-113030 Date posted 06/19/2026
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Benefits

Invested in your satisfaction and continued success.

We take care of our own here (hint: that could be you). Our benefits and rewards mean we cover some of your biggest needs with some of the coolest offerings. We already think we’re a pretty great place to work. We’re just trying to rack up some bonus points.

Let’s start with the big one: Your work gets rewarded with competitive compensation and benefits. It really does pay to be on our team.

Compensation

Paid Time Off

Our people have class. Literally. We can help you out on approved education costs with our tuition assistance plan.

Tuition
Assistance

Here’s another reason to breathe easy: You and your family get access to excellent medical, dental and vision insurance options.

Insurance Options

Wanna make your friends really jealous? You’ll get discounted access to the latest and greatest AT&T products and services — plus other awesome items, like tickets to live events.

Discounts

You strike us as an over-achiever (don’t worry, it’s a compliment). Our training and development programs are your ticket to expert status in your job.

Training & Development

When the day comes that you get some much needed R&R (not that you’d ever want to leave #LifeAtATT) you’ll know your future is set with the AT&T Retirement Savings Plan (ARSP).

Savings

The Hiring Process

Step 1

Complete a quick application online and check your status often.

Step 2

Virtual or in-person
Interviews

Dress professionally and ensure good WiFi interviewing virtually.

Step 3

Conditional
Job Offer

After a background check, you're part of the team.

Step 4

Welcome! Onboarding
and Training Begins

Our training and certification programs set you up for success.

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The values we live by.
  • Live True

    Do the right thing, no compromise.

  • Think Big

    Innovate and get there first.

  • Pursue Excellence

    In everything, every time.

  • Inspire Imagination

    Give people what they don't expect.

  • Stand for Equality

    Speak with your actions.

  • Embrace Freedom

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  • Make a Difference

    Impact your world.

  • Be There

    When customers & colleagues need you most.

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