Top Senior Software Engineer Jobs in Baltimore, MD

Develop and deploy scalable full-stack healthcare applications using Go, TypeScript, Angular, and AWS. Responsibilities include technical design, coding, automated unit/integration/end-to-end testing, code reviews, troubleshooting, agile ceremonies, mentorship, architecture improvements, and occasional on-call support. The role contributes technical leadership across frontend and backend systems while collaborating with Scrum teams and cross-functional partners.

Design, build, deploy, and maintain resilient, scalable software for Toast Delivery Services. Develop real-time delivery tracking, driver matching, pricing, refunds, and payment-related systems. Solve distributed-systems and scaling challenges, integrate with partner APIs, uphold production reliability, promote strong engineering practices, and mentor teammates.

Own the architecture and technical direction for provider-sourced client products, including lead management, caseload migration, AI-powered inquiry workflows, and provider marketing tools. Partner cross-functionally with product, design, data, sales, customer experience, and pricing teams. Build reliable user-facing systems, guide technical decisions across teams, measure product impact through experimentation, and influence teams without direct authority.

Develop, maintain, and enhance complex Java-based distributed software systems for the Data Transport System. Responsibilities include analyzing requirements, designing and coding features, debugging defects, supporting high-performance multithreaded applications, developing Hadoop analytics, and monitoring Apache Accumulo, Hadoop, and ZooKeeper deployments. The role requires Linux development, RESTful services, Spring Framework, configuration management, and active TS/SCI clearance with polygraph.

Develop and maintain enterprise business applications supporting government corporate management systems. Responsibilities include coding features, troubleshooting bugs, improving performance, creating monitoring tools, managing Docker deployments, resolving code and infrastructure issues, protecting data, and participating in Agile development. The role uses Python, Django, Java, JavaScript, VueJS, AWS, PostgreSQL, Docker, and TypeScript, with a focus on full software development lifecycle support.

Designs, develops, maintains, and troubleshoots scalable software applications using .NET, SQL Server, UI frameworks, and cloud technologies. Collaborates with product owners, developers, testers, and technology leads; participates in code reviews; writes documented code; and improves software development practices.

Architect and operate Affirm’s large-scale Amazon EKS compute platform, including cluster lifecycle, node management, autoscaling, shared components, infrastructure automation, workload safety policies, observability, cost and capacity optimization, and self-service workflows. The role drives technical strategy, mentors engineers, partners cross-functionally, and participates in on-call incident response.

Build and ship a full-stack data collection and search platform for defense and intelligence users. Develop frontend, backend, data ingestion, storage, indexing, APIs, and agentic AI capabilities using TypeScript, React, Tailwind, Node.js, PostgreSQL, and AWS. Partner with mission owners, customers, designers, and engineers to translate intelligence workflows into intuitive, mission-ready products supporting information analysis and visualization.

Build and operate backend microservices and AWS cloud infrastructure using Go, Python, Terraform, Kubernetes, and CI/CD. Design APIs, improve reliability and observability, respond to incidents, and implement security controls supporting FedRAMP and CMMC compliance. The role owns infrastructure and backend workstreams end to end, collaborates with US and UK teams, and participates in architecture, technical design, and on-call support.

Own backend features from inception through production, develop and improve Kotlin services, write maintainable and well-tested code, and design scalable, reliable distributed systems within a small cross-functional team.

Build and maintain React-based public websites, owning features from conception through production. Develop reusable component libraries, styling, animations, content platform functionality, server-side rendering, site generation, and mobile-to-web migrations. Collaborate with product, design, and growth teams in a small cross-functional team to deliver high-quality web experiences.

Develop and own user-facing mobile features from inception through production in a cross-functional team. Write maintainable, well-tested code and help deliver a cross-platform banking application using React Native and MobX. The role contributes to a fast-moving, mobile-first consumer product and may involve native Android or iOS development.

Leads software development teams and oversees software lifecycle activities, including designing, coding, debugging, integration, mentoring, documentation, and process improvement. Develops DSP algorithms and RF signal-processing applications using C++, Python, Linux, Kubernetes, Git, and CI/CD pipelines. Applies Agile development practices and works with RF protocols, signal detection, channelization, and related collection and antenna systems.

Leads software development teams working on cyber RF collection and antenna systems. Designs, codes, debugs, integrates, and maintains software using C++, Python, Linux, Kubernetes, Git, and CI/CD pipelines. Mentors engineers, ensures adherence to software processes, improves documentation and development standards, and applies DSP, RF signal processing, signal detection, and protocol expertise in Agile environments.

Leads software development teams while designing, coding, debugging, integrating, and sustaining RF and DSP software. Translates user requirements into software designs, mentors engineers, improves development processes, and ensures quality. Requires extensive C++, Linux, Python, DSP, RF, Kubernetes, Git, and CI/CD expertise, along with an active security clearance and polygraph.

Develops, tests, documents, maintains, and enhances full-stack software and cyber solutions supporting analytic missions. Responsibilities include Java and Linux-based development, data analytics, secure system automation, vulnerability research, and collaboration on agile projects. The role requires production experience with JavaScript, React, MongoDB, and full-stack technologies, while supporting rigorous testing and deployment processes in a high-visibility defense and intelligence environment.

Build and optimize automated release engineering systems, including CI/CD pipelines, build and deployment tooling, and AWS cloud infrastructure. Ensure software delivery quality, security, compliance, and reliability. Lead complex projects, participate in on-call support, mentor teammates, and promote technical excellence. The role uses Go, Java/Kotlin, TypeScript, GitHub Actions, PostgreSQL, DynamoDB, Backstage, AWS, and AI development tools.

Build and optimize growth systems that increase patient bookings and engagement. Design experiments across messaging, outreach, and in-product booking flows; develop backend systems for experimentation and activation; monitor funnel metrics; analyze drop-offs; prioritize growth opportunities; and collaborate with product, design, data, and operations teams. The role emphasizes rapid experimentation, product-led growth, and measurable improvements in activation, conversion, retention, and booking.

Build and evolve OpenRouter’s public REST API, TypeScript and Python SDKs, Agent SDK, CLI, documentation, examples, and starter repositories. Own developer-facing product surfaces, improve API ergonomics and agent compatibility, and collaborate with DevRel, Product, and Platform teams to expand the developer ecosystem. The role requires strong API and SDK design judgment, autonomy, written communication, and experience shipping widely used developer products.

Design, build, and operate resilient AWS cloud infrastructure, Kubernetes platforms, CI/CD pipelines, and infrastructure-as-code modules in a regulated medical-device environment. Improve security, scalability, performance, cost efficiency, deployments, and operational support. Collaborate with Engineering, QA, IT, and Security teams while troubleshooting distributed systems and providing technical leadership across global teams.

Develops workflow applications, automation, scripts, services, integrations, and testing solutions that replace manual processes with traceable enterprise workflows. Responsibilities include process analysis, evidence collection automation, task routing, approvals, policy enforcement, API and data integrations, documentation, code reviews, demonstrations, defect correction, and continuous improvement. The role is remote, contingent on contract award, and supports a federal customer.

Develop, test, maintain, and support secure, scalable full-stack .NET applications in an Agile/Scrum environment. Responsibilities include API and database development, technical documentation, code and design reviews, SDLC compliance, security and audit adherence, collaboration with architects and business partners, mentoring junior engineers, leading project delivery, and participating in on-call support and occasional travel.

Lead the architecture and technical strategy for Affirm’s high-volume observability platform. Design telemetry pipelines and sampling strategies, improve reliability and cost efficiency, integrate observability into AI-assisted development, and drive platform adoption across engineering teams. Remain hands-on while mentoring six engineers, leading cross-functional initiatives, establishing engineering standards, and overseeing monitoring, alerting, on-call operations, and system availability.

Designs, builds, scales, and operates distributed CI/CD services supporting millions of builds, tests, and releases. Develops code for Azure-based infrastructure spanning virtual machines, containers, and custom lab environments. Responsibilities include requirements analysis, architecture and design documentation, estimation, debugging, optimization, operational playbooks, on-call incident response, monitoring, reliability improvements, and mentoring engineers.

Lead frontend-focused full-stack development for a neurotechnology platform controlling brain stimulators, managing patient data, visualizing real-time 3D data, integrating APIs, syncing cloud systems, and improving user experience. The role involves React and React Native frontend work, Python or Node.js backend development, team growth and mentorship, and collaboration on secure, scalable healthcare applications.