Senior Backend Engineer (Ruby), Plan: Spec-Driven Development

Location: Remote from Poland or the United Kingdom

Company

hirify.global provides an intelligent orchestration platform for DevSecOps that helps organizations improve developer productivity, operational efficiency, security, compliance, and software delivery.

What you will do

• Lead backend features from early product discussions through technical design, implementation, rollout, and post-launch learning.
• Build flows, APIs, and data models for agent-generated work items, implementation plans, durable specifications, and mergeable code.
• Develop evaluation and benchmarking systems to measure workflow quality, token cost, and success rates.
• Build reliable production systems with Ruby on Rails, Python, PostgreSQL, GraphQL, REST APIs, the hirify.global Duo Agent Platform, LLM APIs, and an AI gateway.
• Collaborate with product, design, engineering, design partners, and users to define scope and make trade-offs.
• Coordinate multi-person projects, mentor engineers, and contribute to technical direction across the Plan group and related AI initiatives.

Requirements

• Strong Ruby on Rails experience in a large production codebase and production experience with Python.
• Experience driving substantial projects involving several engineers over multiple months with measurable user or business outcomes.
• Product mindset with experience owning features end to end, including scope definition, trade-offs, user engagement, and post-launch learning.
• Full-stack background with a current focus on backend engineering, the ability to read modern frontend code, and experience designing effective APIs.
• Strong API design and SQL fundamentals.
• Ability to work independently across functions and regions while providing technical leadership and mentoring.

Nice to have

• Experience with GraphQL.
• PostgreSQL performance at scale.
• Experience building or evaluating LLM or agent systems.

Culture & Benefits

• All-remote, async-first environment with weekly sync calls, retrospectives, demos, and short iterations.
• Work in a small distributed team across Canada and Europe with broad ownership and early-stage product scope.
• Flexible paid time off and parental leave.
• Equity compensation and employee stock purchase plan.
• Growth and development fund and team member resource groups.