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Added 7 mins ago
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Junior Solutions Engineer
Pontosense
Toronto, ON
- Full-time
Hard, and worth it. What we build keeps someone's parent safe at home. Rest well, it's part of the job.
Added 7 mins ago
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Customer Success Manager
Pontosense
Toronto, ON
- Full-time
Hard, and worth it. What we build keeps someone's parent safe at home. Rest well, it's part of the job.
Added 7 mins ago
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Customer Support Specialist
Pontosense
Toronto, ON
- Full-time
Hard, and worth it. What we build keeps someone's parent safe at home. Rest well, it's part of the job.
Added 7 mins ago
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Office Manager
Pontosense
Toronto, ON
- Full-time
Contracts. You prepare them from approved templates, check the details, flag anything unusual, route them for review and get signatures. You keep the repository and renewal calendar current
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Product Lead
Pontosense
Toronto, ON
- Full-time
Hard, and worth it. What we build keeps someone's parent safe at home. Rest well, it's part of the job.
Added 7 mins ago
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Manager, Customer Support
Pontosense
Toronto, ON
- Full-time
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Pontosense
Toronto, ON
- Full-time
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Added 7 mins ago
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Director of HR
Pontosense
Toronto, ON
- Full-time
Hard, and worth it. What we build keeps someone's parent safe at home. Rest well, it's part of the job.
Added 7 mins ago
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- Full-time
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Added 22 mins ago
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Added 23 mins ago
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Added 51 mins ago
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You can apply to this job and others using your online resume. Click the link below to submit your online resume and email your application to this employer.
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Sierra

Software Engineer, Agent (Spanish speaking)

Toronto, ON, Canada

$180,000 to $390,000 USD / year · Full-time

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Job details

Pay: $180,000 to $390,000 USD / year
Job type: Full-time
Posting language: English
Posted: Oct 7, 2026

Original job description

About us

Sierra is the leading platform for customer-facing AI agents, working with many of the world's biggest brands - including The GAP, Rocket Mortgage, SoFi, Sutter Health, and SoftBank - to transform how they serve customers and grow their businesses. We are primarily an in-person company based in San Francisco, with growing offices across North America, Europe, and Asia.

We are guided by a set of values that are at the core of our actions and define our culture: Trust, Customer Obsession, Craftsmanship, Intensity, and a commitment to balancing Family along the way. These values are the foundation of our work, and we are committed to upholding them in everything we do.

Our co-founders are Bret Taylor and Clay Bavor. Bret currently serves as Board Chair of OpenAI. Previously, he was co-CEO of Salesforce (which had acquired the company he founded, Quip) and CTO of Facebook. Bret was also one of Google's earliest product managers and co-creator of Google Maps. Before founding Sierra, Clay spent 18 years at Google, where he most recently led Google Labs. Earlier, he started and led Google’s AR/VR effort, Project Starline, and Google Lens. Before that, Clay led the product and design teams for Google Workspace.

What you’ll do

Design and deliver production-grade AI agents: You'll build and ship highly performant, reliable, and intuitive AI agents that are central, mission-critical and drive revenue directly to Sierra's growth. These aren't prototypes - they are powerful, scalable systems running in production environments across industries like finance, healthcare, and commerce.
Drive the Agent Development Life Cycle (ADLC): You'll have complete ownership and autonomy from initial pilot through deployment and continuous iteration. You'll be responsible for building, tuning, and evolving AI agents in production environments, defining the standard for ADLC best practices along the way.
Partner with large enterprises and cutting-edge startups: You’ll work directly with leaders at some of the world’s largest enterprises to understand their most pressing business challenges, and build AI agents that transform how they operate at scale. You'll also partner with the most cutting-edge startups in Silicon Valley, embedding AI agents across their entire business stack to drive innovation and efficiency.
Build the future of the platform: Your direct work with customers will guide the evolution of Sierra's core platform. You'll surface unmet needs, prototype new tools and features, and collaborate with research, product, and platform to shape the future of AI agent development and Sierra's product.

Example projects

These are some examples of projects that engineers on our team have worked on recently:

Design and build AI agents for large telecommunications and media companies that consistently outperform human agents in managing subscription churn
Develop and refine AI agents capable of navigating complex customer interactions, like troubleshooting a broken device and personalizing product recommendations
Create generalizable AI agent frameworks tailored for industry-specific use cases. See some examples in our financial services blog!
Facilitate design partnerships for new product initiatives, such as new agent architectures, self-service capabilities, and generative agent development
Experiment with the latest voice models and figure out how to integrate them at scale to enterprise-grade customers

What you'll bring

Language fluency - professional fluency in both Spanish and English
Experience building and scaling end-to-end production systems
Strong technical problem-solving skills, especially in fast-changing, ambiguous environments
A builder and tinkerer’s mindset with high agency - you find creative ways to overcome obstacles and ship
Comfort working directly with customers to understand their needs and solve real-world problems
Excellent communication skills - clear, direct, and persuasive across technical and non-technical audiences

Even better...

Experience building or deploying AI/LLM systems in production
Have been a founder or founding engineer - you know what it means to balance craft, ownership, and speed
Familiarity with tools that power today's AI agents: eval frameworks, agent tooling, RAG pipelines, and prompt engineering
Prior experience with React, TypeScript, and/or Go
Previous roles where you interfaced with customers or led technical projects with external stakeholders

Our values

Trust: We build trust with our customers with our accountability, empathy, quality, and responsiveness. We build trust in AI by making it more accessible, safe, and useful. We build trust with each other by showing up for each other professionally and personally, creating an environment that enables all of us to do our best work.
Customer Obsession: We deeply understand our customers’ business goals and relentlessly focus on driving outcomes, not just technical milestones. Everyone at the company knows and spends time with our customers. When our customer is having an issue, we drop everything and fix it.
Craftsmanship: We get the details right, from the words on the page to the system architecture. We have good taste. When we notice something isn’t right, we take the time to fix it. We are proud of the products we produce. We continuously self-reflect to continuously self-improve.
Intensity: We know we don’t have the luxury of patience. We play to win. We care about our product being the best, and when it isn’t, we fix it. When we fail, we talk about it openly and without blame so we succeed the next time.
Family: We know that balance and intensity are compatible, and we model it in our actions and processes. We are the best technology company for parents. We support and respect each other and celebrate each other’s personal and professional achievements.

What we offer

We want our benefits to reflect our values and offer the following to full-time employees:

Flexible (unlimited) paid time off
Medical, dental, and vision benefits for you and your family
Life insurance and disability benefits
Retirement plan dependent on country of employment
Parental leave
Fertility and family building benefits through Carrot
Lunch, as well as delicious snacks and coffee to keep you energized
Discretionary benefit stipend giving people the ability to spend where it matters most
Free alphorn lessons

These benefits are further detailed in Sierra's policies, may vary by region, and are subject to change at any time, consistent with the terms of any applicable compensation or benefits plans. Eligible full-time employees can participate in Sierra's equity plans subject to the terms of the applicable plans and policies.

Be you, with us

We're working to bring the transformative power of AI to every organization in the world. To do so, it is important to us that the diversity of our employees represents the diversity of our customers. We believe that our work and culture are better when we encourage, support, and respect different skills and experiences represented within our team. We encourage you to apply even if your experience doesn't precisely match the job description. We strive to evaluate all applicants consistently without regard to race, color, religion, gender, national origin, age, disability, veteran status, pregnancy, gender expression or identity, sexual orientation, citizenship, or any other legally protected class.

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More about this job

Responsibilities

Design and deliver production-grade AI agents while managing the full agent development life cycle from pilot to deployment. Partner with enterprise clients to understand business challenges and build scalable AI solutions that drive innovation.

Requirements

Requires professional fluency in both Spanish and English and experience building and scaling end-to-end production systems. Candidates should possess strong technical problem-solving skills and the ability to work directly with customers to solve real-world problems.

Skills

Spanish
English
AI agents
Production systems
Technical problem-solving
Customer communication
LLM systems
Agent tooling
RAG pipelines
Prompt engineering
React
TypeScript
Go
Software engineering
System architecture

Benefits

Flexible paid time off
Medical benefits
Dental benefits
Vision benefits
Life insurance
Disability benefits
Retirement plan
Parental leave
Fertility and family building benefits
Lunch
Snacks and coffee
Discretionary benefit stipend
Equity plans

Visa sponsorship

Not detected in the job text

Keywords

Software Engineer
AI Agents
Production-grade
ADLC
Enterprise
Startups
LLM
RAG
Prompt Engineering
React
TypeScript
Go
Customer-facing
Scalable systems
Voice models
Subscription churn
Product recommendations
Generative AI
System architecture
Technical project management

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