Full Stack Developer (AI-Native)

PayShepherd

23h•$120,000 - $140,000•Remote

About The Position

PayShepherd is a vertical SaaS company transforming how heavy industries, such as Oil and Gas, Pulp and Paper, Mining and Power Generation, manage contractor spend. Our cloud-based contractor management platform automates the previously manual review of paper-based vendor cost reports, and our anomaly detection engine ensures 100% contract compliance and the elimination of overbilling. We use AI as a multiplier to move at a pace much larger teams can't match, and we're looking for developers who want a real stake in the work; with the ownership and equity to match. This role is different because we're hiring full-time developers who are already living in the new way of building software by pairing with Claude Code, running agentic workflows, and shipping at multiples of the old pace without sacrificing quality. This is a small team where every engineer matters disproportionately. The traditional separation between "designer," "PM," and "engineer" is collapsing, and we want people who feel that collapse as an opportunity, not a threat. You'll work alongside our Engineering Lead and the rest of a tight engineering group, with a meaningful stock option grant that reflects the level of ownership we expect. If you want to be a name on a 200-person org chart, this isn't it. If you want a real stake in what gets built and where it goes, read on.

Requirements

5+ years of professional Full Stack Development experience in production systems
Hands-on AWS experience deploying, operating, and scaling real workloads. This is non-negotiable; our entire platform runs on AWS.
Strong proficiency in a modern backend language and a relational database
Experience with React (or a comparable modern frontend framework), plus solid HTML / CSS / JavaScript fundamentals
Active, recent experience using AI-assisted development tools (Claude Code, Cursor, Copilot, agentic workflows) in real day-to-day work, not just dabbling
Solid grasp of web security best practices
A demonstrably curious, builder-oriented mindset; you should be able to point to something you've built or shipped recently outside of your day job
Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent demonstrated experience
Candidates must be based in Vancouver, BC or Calgary AB.
All candidates must satisfy a background check.

Nice To Haves

Experience with PHP and MySQL. This matches our current platform and will help you ramp faster, but isn't a hard requirement if your AWS and modern-stack experience is strong.
Prior experience on a small, high-velocity team
Multi-tenant SaaS experience

Responsibilities

Design and build robust server-side applications, business logic, and data processing pipelines
Write efficient, scalable, secure code
Optimize database queries and application performance
Implement RESTful APIs and integrate with third-party services
Build responsive, intuitive interfaces using modern frameworks (React preferred)
Translate designs into interactive pages with strong usability and UX
Ensure cross-browser compatibility and adherence to web standards
Design, optimize, and maintain relational databases (MySQL in our current stack)
Implement schemas, indexes, and relationships that protect data integrity and performance
Perform migrations, backups, and data migration tasks as required
Deploy, configure, and operate applications and services on AWS (EC2, RDS, S3, Lambda, ALB, and others)
Build scalable, fault-tolerant architecture using ELB, Auto Scaling, Route 53
Monitor and optimize performance, scalability, and cost-efficiency
Apply IAM and AWS security best practices in everything you ship
Use Claude Code (or equivalent agentic tools) as a core part of your workflow, not as a novelty
Parallelize work across multiple AI workstreams where it genuinely accelerates output
Develop the judgment to validate AI-generated code, recognize when it's wrong, and iterate to a correct result
Share patterns, prompts, and learnings with the team, as we are all levelling up together
Apply web security best practices throughout development: input validation, authn/authz, secrets management, dependency hygiene
Be thoughtful about blast radius: changes can ripple across clients with different configurations and workflows
Recognize when an AI tool is about to cross a privacy or security line and act accordingly
Treat customer data with the seriousness it deserves
Work closely with our Engineering Lead and the rest of the engineering team
Participate in code reviews, technical discussions, and knowledge sharing
Communicate progress, blockers, and recommendations clearly and early