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Thri5 Inc.

Senior Software Engineer

Remote, Canada

Remote

Full-time

Apply About employer

Applications open in a new tab.

Job details

Job type: Full-time
Workplace: Remote
Experience: 5+ years of professional software engineering experience, with a track record of designing, building, and operating high-quality production systems
Posting language: English
Posted: Oct 1, 2026

Original job description

About Thri5

Thri5 is building the AI-powered execution layer for the modern retailer.

Retailers generate massive amounts of data but still struggle with operational execution. Thri5 continuously identifies opportunities, prioritizes actions, and helps teams execute through intelligent workflows and AI agents.

Founded by a team with deep retail and retail-technology experience, Thri5 is venture-backed by some of Canada's most prominent VC and angel investors.

Why Join Thri5

Own major parts of the product end-to-end - from customer problem and technical design through production
Build at the intersection of AI, data, product, and real-world retail operations
Help shape the product, architecture, and engineering practices of an early-stage company
Work closely with experienced founders, engineers, and customers
Have a direct impact on customers and company growth

What You'll Do

As a Senior Software Engineer at Thri5, you'll play a key role in building and scaling our product. You'll own significant technical problems from design through production, working closely with product, customers, and other engineers.

You'll work across our stack, including:

Building AI-powered workflows, agents, and customer-facing features
Designing backend services, APIs, data models, and data pipelines
Making architectural decisions as the product and customer base scale
Improving reliability, observability, security, and performance
Evaluating and incorporating new AI capabilities into our product
Reviewing code and helping establish strong engineering practices across the team

We move quickly, work collaboratively, and expect senior engineers to combine strong technical judgment with a bias toward building and shipping.

Technologies We Use

We are an AI-native engineering organization and use specs, agent skills, and AI-assisted development workflows extensively. We use Claude Code extensively as part of our development workflow.

Our core stack is Kotlin on GCP, Postgres, Snowflake, Airflow, Thymeleaf, and HTMX.

We're more interested in strong engineering fundamentals and your ability to learn than previous experience with every part of our stack.

Who We're Looking For

5+ years of professional software engineering experience, with a track record of designing, building, and operating high-quality production systems
Ability to independently scope ambiguous problems, make sound architectural decisions, and drive solutions through production
Strong backend development experience, including APIs, databases, and system architecture
Strong product judgment and an interest in understanding the customer problems behind what you build
Experience working in fast-moving teams and building new products
Strong communication and collaboration skills

Experience with AI/LLM applications, enterprise SaaS, data-intensive systems, Kotlin/JVM, GCP, Snowflake, or early-stage startups is valuable but not required.

Location: Downtown Toronto (Hybrid - 4 days a week in office)

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More about this job

Responsibilities

You will own significant technical problems from design through production, building AI-powered workflows and customer-facing features. You will also make architectural decisions, improve system reliability, and establish strong engineering practices across the team.

Requirements

Candidates must have 5+ years of professional software engineering experience with a track record of building high-quality production systems. Strong backend development skills and the ability to independently scope ambiguous problems are required.

Skills

Software Engineering
Kotlin
JVM
Backend Development
API Design
Database Management
System Architecture
GCP
Postgres
Snowflake
Airflow
AI/LLM Applications
Enterprise SaaS
Data Pipelines
Code Review
Engineering Practices

Visa sponsorship

Not detected in the job text

Keywords

Senior Software Engineer
AI
Retail Technology
Kotlin
GCP
Postgres
Snowflake
Airflow
Thymeleaf
HTMX
Claude Code
Backend
API
Data Models
Data Pipelines
Observability
Security
Performance
LLM
Enterprise SaaS
JVM
Startup
Engineering
Product Design
Workflow Automation
AI Agents
Architecture
Cloud Computing
Software Development
Technical Design

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