Top Senior Ruby Jobs in Washington, DC

Lead modernization and automation of infrastructure, migrate services to AWS serverless, build developer tooling (including AI-agent workflows), maintain WordPress backends, design secure highly available systems, troubleshoot complex issues, and provide rotating 24/7 on-call support.

The Senior Backend Engineer at Weave will design, build, and maintain scalable backend services and APIs, influencing architecture and outcomes while collaborating across teams to enhance healthcare technology.

As a Senior Software Engineer at Algolia, you will enhance user experiences, mentor engineers, design scalable solutions, and collaborate with cross-functional teams to improve product growth and quality.

Build and harden product features and tooling for AWS GovCloud, ensuring security, auditability, and compliance. Implement GovCloud-specific authentication, logging, observability, and developer tooling; analyze and remediate security gaps; mentor engineers; support federal self-hosted customers and on-call escalations.

Lead and grow a full‑stack engineering team building customer data and identity solutions. Own architecture, APIs, component libraries, code quality, hiring, mentoring, roadmap execution, and cross‑functional collaboration. Contribute code for high‑impact items and ensure scalable systems and agile best practices.

Lead, coach, and grow a team of 5-10 software engineers; prioritize and drive application development and support; define and execute the application roadmap; ensure scalable, performant, maintainable designs; champion code quality, CI/CD, automated testing, and agile practices; communicate with leadership and stakeholders.

Design, develop, test, deploy, maintain, and enhance software solutions. Manage priorities and deliverables, participate in design reviews, perform code reviews, triage and debug issues, contribute documentation, and collaborate in cross-functional agile teams to build scalable web applications.

Lead the Lister engineering domain, owning roadmap, delivery, technical health, partner data quality, and team growth. Manage three pods via team leads, stay hands-on with architecture and code reviews, partner cross-functionally, own intake and reliability, and hire/mentor engineers to scale backend services and data pipelines that integrate messy third-party partner systems.

The Staff Engineer will lead the Systems team, design scalable cloud infrastructure, optimize data pipelines, and ensure platform reliability and security.

Build and maintain resilient backend systems, participate across the product development lifecycle, collaborate with product and design, raise engineering standards, think through system lifecycles and failure modes, and contribute broadly at an early-stage fintech. Work primarily with backend technologies (Go preferred) and cloud/datastore tools.

The PHP Developer will design and architect web applications using the LAMP stack, collaborate with teams, optimize performance, ensure security, mentor junior developers, and conduct code reviews.

The Senior AWS Engineer coordinates with teams to analyze outages, deploy applications, optimize performance, and automate processes, while maintaining documentation.

Lead post-sales integrations and implementation projects for software partners, translating business needs into technical solutions, managing project plans, documentation, KPIs, and cross-functional coordination while providing ongoing integration support and product expertise for Payabli's payments platform.

The Senior Software Engineer will design and develop backend systems and APIs, mentor other engineers, and resolve complex integration challenges in healthcare technology.

As a Senior Site Reliability Engineer, you will manage and improve Wikimedia's infrastructure, handle operational tasks, automate processes, and provide mentorship while participating in a 24/7 on-call rotation.

Own and evolve Fieldwire's cloud production infrastructure and tooling: design and automate SDLC and IaC, ensure reliability and security, lead incident response and observability, mentor engineers, and drive platform architecture and process improvements.

Lead the Lister engineering domain end-to-end: set roadmap and technical vision across three pods, ensure partner data quality and system reliability, develop team leads and engineers, drive architecture and code review, manage incident/on-call processes, and partner with Product, Design, Analytics, and Partner Success to translate ambiguous partner needs into scoped engineering work.

Design, build, and own AWS infrastructure and automation for a 24/7 SaaS platform. Implement scalable, secure, highly available systems, partner with developers to improve reliability and performance, maintain critical infrastructure, build tooling and processes to reduce toil, participate in weekly on-call rotation and lead RCA and durable fixes.

The Engineering Lead will manage a small team, drive technical decisions, contribute code, and shape product strategy at AngelList.

Build and scale backend systems for a high-traffic donor CRM and payments platform. Own performant SQL and realtime querying, optimize payment flows, implement AI agents, and collaborate across product and design to ship resilient, production-grade features at scale.

Lead architecture and build scalable, secure production services while championing AI-native development. Mentor engineers, influence technical direction, review PRs, and help evolve a legacy monolith to a modern stack in partnership with product and exec leadership.

Design and build the control plane for Postgres clusters, ensure data protection, automate database operations, and collaborate with customers to enhance the platform.

The Engineering Manager at GiveCampus will oversee engineering pods, manage personnel, contribute to technical architecture, and support product delivery in an agile environment.

The Senior Software Engineer will lead projects, architect solutions, mentor junior staff, and work full stack on platform development.

As a Senior Software Engineer, you will design and build backend services for Postgres integration with ClickHouse, ensuring operational excellence and contributing to automation and tooling for database management.