Software Development Engineer

Ryz Labs is looking for a Software Development Engineer with deep hands-on experience orchestrating AI coding agents to ship production software at pace.

Basic Qualifications

• Bachelor's degree in Computer Science, Engineering, or a related field

• 5+ years of professional software engineering experience shipping production systems at scale

• Hands-on experience using AI coding agents (Claude Code, Codex, Cursor, or equivalent) as a primary development tool. This is mandatory. You must be able to walk through real features, refactors, or investigations delivered through agent orchestration — not occasional autocomplete usage

• Proven ability to run multiple agents in parallel and manage concurrent work streams without losing quality, context, or accountability

• Strong software design fundamentals: OO design, API design, data modeling, distributed-system reliability, and performance

• Proficiency in at least one server-side language (Ruby, Python, Go, Java, or equivalent) and one modern front-end stack (React / TypeScript or equivalent), with the expectation that agents produce the code while you direct, review, and validate it

• Experience with relational databases (Postgres / MySQL), SQL, and building or consuming REST or GraphQL APIs

• Elite code-review skills: the ability to read, critique, and correct diffs at speed is the core competency of an AI-first engineer

• Strong written communication — clear intent, clear PR descriptions, clear prompts. In an AI-first org, writing is the programming interface

• A high level of integrity, accountability, and ownership, with a commitment to excellence across every deliverable

• Desire to work in a fast-paced, ambiguous, high-autonomy environment

Preferred Qualifications

• AI Tooling Builder: Experience authoring or extending AI developer tooling — custom skills, slash commands, MCP servers, sub-agents, evaluation harnesses, or prompt libraries used by a team

• E-commerce Depth: Experience with Ruby on Rails and Solidus / Spree, or other large-scale e-commerce platforms

• Modern Front End: Experience with React 19, TypeScript, GraphQL (Apollo), Tailwind, and modern state management (React Query, XState, Jotai)

• Cloud Native Operations: Experience operating services on Kubernetes (Istio, KEDA, Flagger) and modern observability stacks

• Automated QA at Scale: Experience driving agents to maintain and extend test suites with Playwright, Vitest, and RSpec

• AI-Native Leadership: Track record of mentoring engineers on AI-native workflows, publishing internal patterns, or leading an organization through the shift away from manual coding

• Measurable Throughput Gains: Documented improvements in features-per-week, cycle time, or review time directly attributable to AI adoption

• High-Growth Environment: Experience shipping in a fast-paced, agile environment at a high-growth startup or tech company

About RYZ Labs:

RYZ Labs is a startup studio founded in 2021 by two lifelong entrepreneurs. The founders of RYZ have worked at some of the world's largest tech companies and some of the most iconic consumer brands. They have lived and worked in Argentina for many years and have decades of experience in Latam. What brought them together was their passion for the early phases of company creation and the idea of attracting the brightest talents in order to build industry-defining companies in a post-pandemic world.

Our teams are remote and distributed throughout the US and Latam. They use the latest cutting-edge cloud computing technologies to create scalable and resilient applications. We aim to provide diverse product solutions for different industries and plan to build a large number of startups in the upcoming years.

At RYZ, you will find yourself working with autonomy and efficiency, owning every step of your development. We provide an environment of opportunities, learning, growth, expansion, and challenging projects. You will deepen your experience while sharing and learning from a team of great professionals and specialists.