Top Ruby Jobs in Washington, DC

Own and evolve AWS infrastructure, Kubernetes, Terraform, CI/CD, developer tooling, observability, security defaults, backup recovery, and incident response. Build reliable automation and self-service workflows, establish SLOs and actionable alerting, support engineers across environments, lead platform initiatives, improve security and reliability practices, and mentor engineers serving millions of users.

Build and operate GitLab’s Rust-based Knowledge Graph backend supporting SDLC and code indexing, graph queries, MCP endpoints, AI agents, and analytics. Integrate with Rails, ClickHouse, NATS JetStream, and Data Insights systems. Improve reliability, observability, scalability, and operational readiness through testing, metrics, runbooks, alerts, and on-call participation. Collaborate asynchronously across product, data, infrastructure, security, and AI teams while contributing to system design and occasional Ruby or frontend work.

Build scalable full-stack interview-platform features, including AI-enhanced capabilities, APIs, user interfaces, infrastructure, and production services. Collaborate with product, design, and data science teams; contribute to architecture decisions; improve reliability, performance, and security; and provide technical leadership through mentoring and engineering best practices.

Principal Engineer responsible for defining the long-term architecture and modernization strategy for GitLab’s Fulfillment platform. The role drives technical direction across entitlements, licensing, provisioning, seat management, usage visibility, and cost management. Responsibilities include hands-on distributed systems engineering, migrations, performance and reliability improvements, cross-team influence, AI-assisted engineering adoption, and mentoring senior technical staff.

Build and ship backend features end-to-end using Ruby on Rails and SQL. Lead complex technical projects, solve architecture challenges, establish standards, conduct meaningful code reviews, resolve high-risk bugs, document systems, collaborate across engineering teams, and mentor junior engineers.

Leads and develops teams of 10–15 software engineers, partners with stakeholders on application priorities and roadmaps, and ensures scalable, high-performance, maintainable software delivery. Oversees quality, continuous delivery, automated testing, Agile practices, and engineering team growth. The role requires hands-on technical judgment, leadership communication, and adoption of AI-enabled development tools. This is a hybrid position based in the DC or NYC office.

Build and maintain scalable full-stack applications, APIs, and platform capabilities serving millions of developers. Lead projects from conception through delivery, write reliable and testable code, optimize performance, improve observability, participate in on-call rotations, and reduce technical debt. Collaborate asynchronously with Engineering, Product, Design, and cross-functional teams while mentoring peers and thoughtfully using AI-assisted development tools.

Automate and maintain CI/CD pipelines, provision cloud infrastructure, implement infrastructure as code, manage containerized environments, monitor system performance, and improve deployment reliability, scalability, security, and speed. Collaborate with software engineering and cloud teams while using scripting and automation to streamline IT operations.

Build and maintain authentication and fine-grained authorization systems using Auth0 and OpenFGA. Own OAuth 2.0 and OpenID Connect implementations, identity federation, token flows, and permissions for AI agents. Lead cross-team technical projects, set engineering standards, review code, and mentor engineers. The role requires strong backend development skills and experience with identity providers, ReBAC systems, and complex multi-tenant authorization models.

Lead software architecture, design, development, and implementation for banking and payments solutions. Mentor engineering teams, collaborate on enterprise architecture, build scalable distributed services, manage vulnerabilities, and support Agile delivery. Work includes cloud platforms, CI/CD, big data, API integration, payment systems, legacy modernization, and technical performance troubleshooting.

Leads software engineering for enterprise payments, managing and developing engineering teams, product delivery, roadmaps, budgets, resources, releases, production incidents, testing, and security remediation. Partners with architects, product managers, infrastructure, DevOps, and operations teams to deliver reliable, scalable consumer-facing products. Oversees payment-platform milestones, environments, risks, compliance findings, readiness activities, and executive technology reporting.

Build and operate the core Rails-based platform for workplace retirement and TPA products. Responsibilities include end-to-end feature development, scalable APIs and data models, agent-facing tools with permissions and audit trails, data integrations with payroll, payments, identity, and recordkeepers, architecture discussions, deployment, monitoring, and mentoring. The role requires strong Ruby/Rails expertise, AWS familiarity, third-party integration experience, and thoughtful design for reliability, compliance, and financial workflows.

Build and ship backend features for Clubhouse’s live audio, reactions, clips, houses, and replays. Evolve scalable backend systems, collaborate with product, design, engineering, and data science teams, run experiments, and make pragmatic tradeoffs that improve engagement and retention for millions of users.

Develops, tests, documents, supports, and improves software systems with a primary focus on Sitecore and modern web applications. Designs responsive interfaces, integrations, APIs, automations, and CMS solutions while supporting CI/CD, Agile, testing, monitoring, security, and performance standards. Troubleshoots incidents, manages technical debt, collaborates with project and business teams, documents solutions, and provides stakeholder support. Requires strong web technologies, databases, operating systems, enterprise integration, and software development experience.

Engineering Manager responsible for leading and developing a team of engineers while balancing technical leadership, execution, and people management. The role involves improving productivity and reliability, shaping technical roadmaps with product and design partners, setting team objectives, leading hiring and retention, and delivering complex web applications and services. The manager will also mentor engineers, support career growth, and make strategic decisions in a fast-paced environment.

Build scalable, efficient full-stack systems that support healthcare professionals and improve patient outcomes. Collaborate with developers, data scientists, healthcare professionals, product managers, and operations teams to develop features, maintain development practices, write tests, document implementations, and refactor complex distributed systems.

Build scalable, efficient full-stack systems that support healthcare professionals and improve patient outcomes. Collaborate with developers, data scientists, clinicians, product managers, and operational teams to create new features, maintain development practices, write tests, document implementations, and refactor complex distributed systems.

Leads and develops engineering teams in a player/coach role, balancing technical leadership, execution, and people management. Responsibilities include improving team productivity and reliability, shaping technical roadmaps with product and design partners, setting objectives, representing the team in engineering initiatives, and leading hiring, development, and retention. The role requires system design expertise, proficiency in a general-purpose programming language, experience delivering complex web applications and services, and adaptability across technical systems.

Build and operate an agentic SOC investigation platform using LLMs, including telemetry tools, investigation workflows, evidence-backed outputs, evaluation systems, and analyst productivity features. Develop secure, reliable, observable backend services that handle attacker-influenced data across customer environments. Collaborate with SOC analysts, researchers, technical leads, and product managers to translate investigative expertise into production agent behavior.

Lead full-stack development for Huntress’s SOC platform, building analyst-facing investigation, triage, remediation, queueing, and customer reporting experiences. Shape architecture, data models, interfaces, security practices, reliability, observability, and testing while mentoring engineers and partnering with Product, UX, and SOC stakeholders. The role emphasizes Ruby on Rails, modern frontend development, cloud infrastructure, relational databases, and technical leadership across complex cybersecurity software products.

Build and own Bota’s full-stack AI hardware platform, including backend services, APIs, data models, frontend interfaces, cloud infrastructure, CI/CD, testing, security, and observability. The founding engineer will make end-to-end technical decisions, collaborate with product, design, and customers, mentor future engineers, improve system performance and reliability, and help shape engineering culture and long-term technology strategy.

The Senior SDET develops and maintains regression automation, performs manual and automated testing across smoke, integration, performance, and regression scenarios, and documents defects and test results. The role collaborates with product and customer-facing teams throughout the SDLC, contributes to planning and quality processes, maintains GitHub automation repositories, identifies quality risks, and participates in on-call support.

Lead the technical direction of Carrum Health’s billing and payments platform. Centralize pricing, define billing service boundaries and data models, and build reliable systems for invoicing, provider payments, and financial reporting. Partner with Product, Finance, Operations, and Data on cross-team initiatives, write architectural documentation, mentor engineers, and ensure financial correctness, observability, auditability, and safe rollbacks. Work primarily with Ruby on Rails, React, PostgreSQL, Docker, and AWS in a remote-first startup environment.

Architects scalable distributed systems and low-level cloud platform services, establishes engineering standards and SLOs, designs CI/CD and deployment safety pipelines, leads complex incident escalations and postmortems, and mentors engineering teams. The role requires full-stack, API, and microservices development in Linux or Unix environments, strong SRE expertise, architectural leadership, and US citizenship with eligibility for security clearance.

Lead the architecture and delivery of GitLab’s data products, including near-real-time data ingestion, knowledge graph integrations, data marketplaces, observability, and data-sharing APIs. Translate ambiguous 0-to-1 initiatives into roadmaps, resolve cross-team dependencies, ensure operational readiness across deployment surfaces, and mentor engineers. The role requires deep full-stack expertise, technical leadership, and experience with AI-powered orchestration and multi-tenant SaaS systems.