Senior Software Engineer - AI Copilot (Backend)

Location: Remote, Portugal; other location: Lisbon, Portugal

Company

hirify.global develops customer service software that helps brands manage and improve customer conversations.

What you will do

• Own and deliver AI-powered product features end-to-end, from technical design and implementation through testing, release, and iteration.
• Build and maintain scalable backend services, RESTful APIs, and integrations for AI-powered product experiences.
• Collaborate with ML Scientists and ML Engineers to integrate ML capabilities into reliable user-facing features.
• Contribute to technical design and architecture decisions while working with Product Management, Design, and engineering teams.
• Improve system reliability, performance, and maintainability, including addressing technical debt.
• Mentor junior engineers through code reviews, pairing, and knowledge sharing.

Requirements

• 5+ years of experience building and operating large-scale, Internet-facing applications.
• Fluent Ruby; working proficiency in Python is a plus.
• Solid experience with distributed systems, RESTful APIs, and AWS cloud infrastructure.
• Experience with Docker, Kubernetes, and CI/CD practices.
• Track record of owning features end-to-end and delivering high-quality production releases.
• Ability to work with uncertainty and adapt to changing priorities.
• Ability to collaborate effectively with ML engineers and scientists; ML expertise is not required.
• Strong collaboration skills and a desire to help the team succeed.

Nice to have

• Experience with SQL and data infrastructure such as Snowflake and dbt, including data pipelines and transformations.
• Exposure to LLM integration patterns, including prompt engineering, evaluation, monitoring, or multi-provider setups.
• Familiarity with ML pipeline tooling such as Metaflow or with ML frameworks.
• Experience with event-driven architectures such as Kafka.
• Experience with iterative, metrics-driven product development, including A/B testing, feature flags, and incremental rollouts.

Culture & Benefits

• Full-time role with a remote arrangement in Portugal.
• hirify.global uses a hybrid company-wide model that combines remote flexibility with purposeful in-person collaboration at its offices.
• Work in a positive, inclusive environment focused on collaboration, learning, and customer impact.
• AI or automated decision systems may be used to screen or evaluate applications.
• Reasonable accommodations are available for applicants with disabilities and disabled veterans.