Ruby Jobs

Confido is seeking a Senior ML Ops Engineer to be the first dedicated owner of its ML platform. This role will be responsible for the pipelines, serving, and cloud foundation that enable AI/ML models and agents to operate reliably and cost-efficiently in production. The engineer will ensure the platform can handle large-scale workloads, including document understanding, forecasting, and agentic systems, with a focus on making AI/ML development and deployment seamless for the AI/ML team.

$210k - $300k

Stripe is seeking product-minded engineers to join the Builder Experience Team, which focuses on improving how Stripe's product teams build, ship, and iterate on products. This team is AI-native and reimagines workflows using AI agents and automation to address fragmented and manual processes. The role involves identifying high-friction areas in the product development lifecycle, prototyping new approaches, and scaling successful experiments into solutions used across Stripe. You will work across the full stack, combining traditional software engineering with emerging AI capabilities to discover the right product, interface, and technical architecture in ambiguous problem spaces.

Stripe is seeking an AI Engineer to join the Solutions Architecture team. This role involves embedding directly with Solutions Architects to understand their workflows and build production-quality tools, agents, and automation that enhance their productivity. You will focus on high-leverage opportunities, transforming how the team operates by scaling individual solutions to organizational capabilities. The goal is to measurably improve SA productivity through accelerated engagements and transformed workflows, working at the intersection of engineering and business impact.

The Link team is building the premier consumer network for next-generation commerce, leveraging over 300 million registered consumers to pioneer the future of Identity, Consumer Finance, and AI-driven transactions. The Consumer Preference team specifically focuses on enhancing the Link experience across web applications and agents, creating a wallet product that empowers consumers with financial insights, rewards, and secure transaction capabilities. As a Staff Full Stack Engineer, you will lead the design and delivery of new consumer features, taking ambiguous product opportunities from initial concept through validation and final launch. This hands-on role involves owning large, cross-functional projects, leading engineering teams, and making critical architectural decisions to balance quality with rapid iteration.

Fin, now part of Salesforce, is seeking Forward Deployed Engineers to bridge the gap between customer needs and product innovation. These roles involve working hands-on with strategic customers, partnering with R&D and Go-to-Market teams to design and deliver high-impact solutions. You will go beyond implementation to shape product direction, influence roadmap decisions, and ensure Fin delivers measurable business outcomes in complex, real-world environments. This role offers a unique opportunity to combine technical excellence with real customer impact, ideal for those excited by ownership, creativity, and solving ambiguous problems at the frontier of applied AI.

$215k - $237k

Fin, now part of Salesforce, is seeking Forward Deployed Engineers to help bridge the gap between customer needs and product innovation. These roles involve working hands-on with strategic customers, partnering closely with R&D and Go-to-Market teams to design and deliver high-impact solutions. You will go beyond implementation to shape product direction, influence roadmap decisions, and ensure Fin delivers real, measurable business outcomes in complex, real-world environments. This role offers a rare opportunity to combine technical excellence with real customer impact, ideal for those excited by ownership, creativity, and solving ambiguous problems at the frontier of applied AI.

$180k - $200k

Faire is seeking a Senior Security Engineer to focus on Enterprise AI, ensuring the safe and rapid adoption of AI technologies. This role involves owning and building the technical guardrails for AI platforms, enabling secure AI acceleration without introducing new exposures. You will have a significant voice in scaling AI safely, translating strategic direction into functional systems, standards, and controls. The position is ideal for someone who wants to directly manage AI platforms, build technical safeguards, and act as a trusted technical advisor for AI tool adoption.

Figma is seeking infrastructure and platform-minded engineers to join our AI Platform team. This team builds the core frameworks, abstractions, and systems that power AI features across Figma, enabling new capabilities for AI product teams and improving performance, reliability, and technical quality. You will contribute to agent infrastructure, context retrieval & ranking platforms, and core AI services to accelerate critical company-wide AI initiatives. This role involves supporting end-to-end AI feature development by designing, building, and maintaining scalable, reliable, and performant systems, collaborating with cross-functional teams, and shaping platform strategy and best practices.

$153k - $376k

HackerRank is seeking a Senior Backend Software Development Engineer to drive the technical direction of critical backend systems and lead high-impact, platform-level initiatives. This role involves owning the architecture and evolution of core backend services, mentoring engineers, and making key technical decisions to ensure the platform remains fast, reliable, and scalable for a growing global user base. The ideal candidate will contribute to the company's mission of helping businesses hire and upskill developers based on skills, adapting to the evolving landscape where humans and AI build together.

$150k - $172k

Mutiny is building an AI infrastructure for GTM teams to execute faster and close more revenue, aiming to do for revenue velocity what Cursor and Claude Code did for engineering velocity. The company recently relaunched its product as an agent-first platform, gaining recognition from Anthropic and experiencing significant month-over-month MRR growth with notable customers. Backed by prominent investors, Mutiny is focused on building a generational company. As a Senior Engineer on the AI Product team, you will architect and develop core agent experiences, making non-deterministic AI models trustworthy and reliable for users. This role involves close collaboration with product, design, and founders to shape the future of an agent-first GTM platform, with a strong emphasis on architecture, evaluation, and guardrails. The position is based in New York City, requiring a five-day-a-week in-office presence, with a weekly shipping cadence.