Source Job

US 12w maternity 12w paternity

  • Drive the technical vision and architectural evolution of the Core Platform, including foundational components like the notification system, onboarding, and APIs.
  • Design systems that empower all engineering teams to build faster and more securely, acting as a technical thought leader for scaling challenges.
  • Mentor engineers, partner with management, and eliminate cross-team dependencies to ensure smooth delivery of complex features.

Ruby On Rails AWS Linux Database Management Architecture

20 jobs similar to Staff Software Engineer - Core Platform (Ruby/Rails)

Jobs ranked by similarity.

US 12w maternity 12w paternity

  • Own and drive projects end-to-end, from design and coding to testing and rollout.
  • Work across the full stack to deliver secure, scalable solutions on the Core Platform.
  • Mentor teammates and maintain high standards for code quality through reviews and pairing.

Huntress is a remote-first cybersecurity company founded in 2015 by former NSA cyber operators, making enterprise-grade security accessible to businesses of all sizes. The company secures over 5 million endpoints and 15 million identities worldwide, with a culture focused on impactful work and customer commitment.

$100,000–$150,000/yr
US Unlimited PTO

  • Build new systems and enhance existing systems for digital banking and lending products.
  • Collaborate with developers, QA, and Product Managers to design and implement features.
  • Contribute to the Engineering vision and roadmap with a focus on scalability and good design.

NinjaHoldings provides digital banking and lending products for consumers often overlooked, along with analytics services for other companies. They are a lean, growing company with a distributed global workforce.

$120,000–$180,000/yr
US

  • Shape technical direction on the Essentials squad, contributing to architecture decisions and unblocking teammates while staying hands-on in Ruby on Rails, TypeScript, and React.
  • Lead by example in the codebase: write clean, maintainable code and elevate quality through code review and pairing.
  • Design and optimize back-end systems, APIs, and data flows with a strong focus on performance and reliability.

CentralReach is a leading provider of autism and IDD care software for Applied Behavior Analysis (ABA), multidisciplinary therapy, and special education. Trusted by more than 200,000 users, the company has been recognized as one of the best places to work over 10 times and fosters a culture centered around impact, inclusion, and flexibility.

UK EU 7w PTO

  • Build and maintain product features, taking ownership from initial discussion through to deployment.
  • Collaborate with Product and other stakeholders to define and refine the scope of new features.
  • Contribute to app maintenance, spending at least 20% of time on stability, performance, and developer experience.

Stora builds the operating platform for modern self-storage businesses, helping operators manage bookings, payments, customers, and day-to-day operations. With over 300 operators and rapid growth, we're a product-led team focused on innovation and improving self-storage.

Canada Unlimited PTO

  • Own and evolve cross-cutting platform systems — approval workflows, permissions, authentication, and notifications — bringing strong architectural judgment to state management, data integrity, scalability, and backward compatibility for shared infrastructure.
  • Collaborate with other engineers, product managers, and subject matter experts across the teams that consume PANDA's services to provide elegant solutions to Wrapbook customer problems.
  • Lead and decompose complex, ambiguous projects into actionable technical tasks, including migration paths that don't break dependent teams.

Wrapbook is the AI platform for production finance, built for feature films, TV, and commercials. Our team of 350+ is using AI to transform how finance teams work and empower them to do more with less.

$81,000–$91,800/yr
Europe

  • Define and maintain the target architecture across squads, turning it into a clear technical roadmap that addresses product needs 6 to 12 months ahead.
  • Write code on critical and transverse pieces, mentor senior and mid-level engineers, and set standards for testing, observability, and deployment.
  • Partner with engineering leadership to frame complex technical decisions, communicate them, and drive technical direction that improves the whole team.

JobTeaser is a career platform that integrates into 800+ European university hubs to connect students with internships and jobs. With a team of over 60 in tech and a strong culture of innovation and ownership, they support 2 million young graduates across Europe.

US

  • Design and build scalable, performant, secure, and highly available systems in a continuous delivery environment.
  • Write clean, modular, and maintainable code with unit test coverage and advocate for best practices.
  • Collaborate with cross-functional teams and take ownership of delivering high-quality results.

Versant is a media and entertainment business that builds trusted brands shaping culture, informing audiences, and building lasting connections across four core markets. It is a publicly traded company with a collaborative, team-driven culture focused on continuous improvement and innovation.

  • Own the technical direction and architecture of the releases platform, including the canonical release model.
  • Lead key technical decisions around security, reliability, scalability, and release governance.
  • Build and scale tools that support large-scale engineering teams and critical software delivery workflows.

This company builds a foundational release control platform used by leading engineering teams to ship software safely and efficiently. It fosters a collaborative, inclusive, and remote-first culture, with significant autonomy and opportunities for technical leadership.

US Unlimited PTO

  • Design, build, and maintain core services and infrastructure that power large-scale logistics solutions.
  • Identify and address performance bottlenecks, ensuring reliability and scalability across the platform.
  • Collaborate closely with Product, Data Science, and other engineering teams to deliver impactful features.

Roadie is a logistics and delivery platform that helps businesses tackle delivery complexities with same-day and last-mile solutions. With over 310,000 independent drivers nationwide and a remote-first culture, Roadie values innovation, collaboration, and flexibility.

India

  • Design and evolve a sophisticated media intelligence platform using Ruby on Rails and VueJS.
  • Collaborate with product managers, stakeholders, and engineers to turn complex requirements into scalable solutions.
  • Lead technical initiatives from design through deployment, ensuring code quality and security.

The company builds a sophisticated media intelligence platform with global reach. It fosters a collaborative, inclusive, and globally distributed culture focused on innovation and professional growth.

Canada

  • Design and implement features end to end, primarily using Rails and React
  • Address performance and infrastructure challenges to scale while improving speed and reliability
  • Actively collaborate with CX and other team members to incorporate learnings and opportunities into the product experience

Junip operates a review platform for ecommerce merchants, helping shoppers make informed purchasing decisions. They are a small, profitable, and growing team serving over 10,000 merchants and millions of customers.

$160,000–$200,000/yr
United States Canada Europe Unlimited PTO 12w maternity 12w paternity

  • Write reliable, secure, and scalable code for Lithic's product platform with minimal tech debt.
  • Improve system reliability and participate in team on-call rotation.
  • Own projects from planning to launch, including API key management, audit logging, and search.

Lithic is a modern card issuing and processing platform for financial companies to build the future of payments. They are a team of 170+ across 26 states and 7 countries, with a remote-first culture.

$127,500–$142,500/yr
Canada

  • Architect and build production-grade internal AI tools and shared platform capabilities used by teams across Fullscript.
  • Lead the technical design and delivery of complex AI integrations, including MCP-based tool use, agentic workflows, and model gateways.
  • Independently take ambiguous business problems from technical discovery through implementation, deployment, measurement, and ongoing operation.

Fullscript is a health technology company that helps practitioners access products and deliver better care. With over 125,000 practitioners and 10 million patients, we build tools that make care smarter and more human, fostering a culture of growth, teamwork, and impact.

UK

  • Design and build secure, performant external agent integrations across the GitLab monolith backend, owning complex features end-to-end.
  • Collaborate with Product Management, UX, frontend, backend, and AI specialists to refine requirements and deliver iterative improvements.
  • Design, implement, and review GraphQL and REST APIs, enhance automated testing, and participate in Tier 2 on-call rotations for production reliability.

GitLab is the intelligent orchestration platform for DevSecOps, enabling organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. With more than 50 million registered users and trust from over 50% of the Fortune 100, GitLab fosters a high-performance, remote-first culture driven by values, AI integration, and continuous knowledge exchange.

$200,000–$220,000/yr
US 12w maternity 12w paternity

  • Design and enhance multi-region, multi-cloud infrastructure for reliability and capacity failover.
  • Author custom Kubernetes tools and infrastructure code using Terraform, Go, Python, or Ruby.
  • Diagnose and fix complex production issues and performance bottlenecks across cloud environments.

Huntress is a cybersecurity company founded in 2015 by former NSA cyber operators. They provide enterprise-grade security to businesses of all sizes, securing over 5 million endpoints and 11 million identities. Their remote-first team values resilience and collaboration.

$152,800–$259,200/yr
Americas Unlimited PTO

  • Lead cross-cutting initiatives and drive modular backend architecture to improve scalability and developer velocity.
  • Set standards for APIs, testing, security, and operability while mentoring engineers and shaping technical direction.
  • Own production systems, participate in on-call, and lead AI-assisted engineering workflows with quality and safety guardrails.

GitLab is the intelligent orchestration platform for DevSecOps, helping organizations increase developer productivity and improve operational efficiency. With over 50 million users and trust from more than 50% of the Fortune 100, GitLab fosters a high-performance culture driven by values, continuous knowledge exchange, and AI integration.

$100,000–$140,000/yr
US 4w PTO

  • Develop new features across the Ruby on Rails stack, collaborating with operations and sales.
  • Direct AI coding agents to frame problems, review code, and ensure high-quality output.
  • Improve system quality via TDD, refactoring, and writing precise design documentation.

Magellan AI provides visibility into the podcast advertising market with audio analysis and NLP, helping buyers optimize campaigns and sellers prove performance. It is an early-stage startup founded in 2016 with a team of seven engineers, offering a remote-first culture and competitive benefits.

US Unlimited PTO

  • Build and maintain Ruby on Rails applications with PostgreSQL, including progressive web applications optimized for mobile, desktop, and offline use.
  • Design and implement RESTful APIs, database schemas, and data models for mission-critical defense and logistics systems.
  • Deploy and manage applications on Kubernetes using containerization, reproducible builds, and secure software supply-chain practices.

Reveal Technology is a dynamic startup revolutionizing field operations by delivering software tools and intelligence to operators in remote, disconnected, and extreme environments. Founded in 2019, the company is scaling its team and technology to meet the accelerating demands of modern warfare and national security.

$139,200–$235,200/yr
Canada United States Unlimited PTO

  • Design, build, and operate GitLab Orbit backend services, primarily in Rust, within a distributed, cloud-native environment.
  • Improve deployment, monitoring, and operations using Kubernetes, Helm, Terraform, and cloud services from AWS or GCP.
  • Automate operational work, strengthen observability, and manage production issues to reduce single points of failure.

GitLab is the intelligent orchestration platform for DevSecOps, helping organizations increase developer productivity, improve operational efficiency, and accelerate digital transformation. Trusted by more than 50 million registered users and over 50% of the Fortune 100, GitLab fosters a high-performance culture driven by shared values and continuous knowledge exchange.

Canada Israel UK United States Unlimited PTO

  • Design and ship authorization changes in GitLab's Ruby on Rails monolith, owning end-to-end workstreams from problem definition to rollout.
  • Extend fine-grained permissions for tokens and roles, and maintain the coherence of the permission catalog as it grows.
  • Partner with cross-functional teams and drive technical decisions through written design docs and code review in a fully asynchronous organization.

GitLab provides an intelligent orchestration platform for DevSecOps, enabling organizations to increase developer productivity, improve operational efficiency, and reduce security risk. With over 50 million registered users and a high-performance culture driven by values and continuous knowledge exchange, GitLab fosters innovation and collaboration.