Top Senior Software Engineer Jobs in Baltimore, MD

Staff Software Engineer responsible for leading design and delivery of large-scale order platform capabilities spanning cloud and point-of-sale systems. The role drives architecture, performance, reliability, API design, code quality, incident response, and technical roadmap alignment. It also requires cross-team collaboration, domain expertise in order processing and synchronization, mentoring engineers, and using AI-assisted development tools to improve productivity.

Designs, develops, and optimizes highly available cloud-native applications and infrastructure using Kubernetes, Docker, microservices, and cloud platforms. Builds RESTful APIs, data pipelines, dashboards, CI/CD workflows, and Infrastructure as Code. Develops testing strategies, monitors production systems, resolves performance issues, and documents architectures and deployment processes. Collaborates with architects, DevOps teams, and product managers to deliver scalable analytics and application solutions.

Develop and maintain large-scale cloud software and distributed systems across the full SDLC. Design full-stack services, graph data models, NoSQL architectures, microservices, analytics capabilities, and CI/CD pipelines. Integrate graph databases with relational and search technologies, implement testing and deployment, optimize performance, and produce technical documentation. Collaborate with data scientists, engineers, and product managers on mission-critical national security applications.

Lead frontend technical strategy for Affirm’s checkout decision orchestration systems. Design and architect scalable web applications, guide major technical initiatives, improve reliability and operational processes, establish engineering quality standards, collaborate with product, design, and analytics, and mentor engineers. The role focuses on building fast, clear, and reliable checkout experiences using modern declarative UI frameworks.

Develops and maintains browser-based web applications and user interfaces for mission-focused data and analytics. Responsibilities include writing JavaScript, HTML, and CSS; integrating REST APIs; collaborating with designers, backend engineers, and data scientists; troubleshooting customer issues; writing unit tests; conducting QA testing; and participating in code reviews. The role requires an active Secret clearance, U.S. citizenship, hybrid or onsite availability, and relevant frontend development experience.

Develop, test, maintain, and troubleshoot secure enterprise software, APIs, REST services, microservices, Python AI integrations, and Kubernetes deployments. Collaborate with engineers and customer stakeholders in Agile teams, conduct code reviews, automate testing, and improve software quality. Senior assignments include technical leadership, mentoring, and architectural decisions. Work may be onsite, remote, or hybrid depending on customer requirements.

Design and maintain automated testing frameworks for cloud-scale distributed systems. Build performance, load, stress, integration, API, end-to-end, chaos, security, and infrastructure tests. Integrate continuous testing into CI/CD pipelines, analyze observability data, validate Kubernetes and microservices environments, and collaborate with Engineering and SRE teams to improve reliability. The role also participates in on-call rotations and helps establish QA strategy and standards across GPU infrastructure, serverless endpoints, storage, billing, and event-driven systems.

Develop and implement the MDAT system using Java, Python, and AWS services. Build automated functional and systems-level tests, collaborate with systems engineers within an agile development process, and prototype solutions in the AWS cloud. The role requires seven years of comparable software engineering experience, a bachelor’s degree or equivalent substituted experience, U.S. citizenship, and TS/SCI clearance with polygraph.

Build and operate production backend services supporting Supabase AI products, including the MCP server. Responsibilities include service architecture, deployments, scaling, authentication and authorization, observability, reliability targets, on-call incident response, rate limiting, capacity management, and API evolution. The role requires strong TypeScript or Go skills, production backend experience, distributed-systems debugging, and collaboration with Platform and SRE teams in a fully remote environment.

Develop and maintain a cloud-based full-stack software product for storing, visualizing, validating, and disseminating ELINT data. Design, test, document, and deploy new features using Java, Kotlin, React, databases, AWS, and related technologies. Collaborate with developers and DevOps, contribute to architecture reviews, and support tactical users, interoperability, documentation, and data fidelity.

Develops, maintains, tests, and enhances complex cloud-based big-data systems. Responsibilities include back-end processing, indexing, distributed computing, Hadoop ecosystem development, Java application implementation, information retrieval, MapReduce analytics, software design, debugging, requirements analysis, and resolving software defects. The role also supports cloud security, multi-node installations, disparate data ingestion, and SIGINT mission applications.

Develop and maintain accessible front-end applications compliant with Section 508 and WCAG 2.1/2.2 AA. Conduct manual and automated accessibility testing using JAWS and tools such as axe, Pa11y, and Lighthouse; remediate keyboard, focus, ARIA, contrast, and semantic HTML issues. Collaborate with designers, developers, QA, DevOps, and product owners in an Agile environment, integrate accessibility checks into CI/CD pipelines, document audit findings, and support federal agency compliance.

Build and support backend services and production data pipelines for cyber platforms. Design data ingestion, modeling, transformation, validation, storage, and recovery systems. Develop Python testing frameworks, reusable tooling, test environments, CI/CD checks, diagnostics, and documentation. Collaborate with operators and engineers to clarify requirements, make technical decisions, deliver production software, and establish scalable testing practices.

Design and build reusable backend platform services, libraries, frameworks, integrations, and AWS infrastructure abstractions. Establish reliability, security, observability, testing, compatibility, and deployment standards for consuming teams. Direct AI-agent implementation through specifications and contracts, review generated and human code, manage incidents, and drive production adoption of shared platform capabilities.

Lead technical ownership of InfiniBand and GPU interconnect fabric operations for hyperscale AI supercomputers. Drive incident response, deep multi-layer debugging across hardware/firmware/drivers/OS, and define failure models, playbooks, telemetry, and automation to improve reliability, observability, and scalability of GPU clusters and platform SLAs.

Develop and enhance cloud-based web applications for data tracking, metrics, approval workflows, and compliant data movement. Collaborate with customers, systems engineers, and developers on requirements, design documents, demonstrations, integration, testing, and product evaluation. Participate in Agile ceremonies, manage Jira tickets, and apply software engineering standards and best practices. The role requires extensive software development experience, AWS-related certification, and an active TS/SCI clearance with current polygraph.

Develop and maintain full-stack web applications, workflow automation, and dataflow solutions supporting intelligence operations. Collaborate with analysts, operators, developers, and customers to identify inefficiencies, deliver iterative solutions through CI/CD, gather feedback, and improve mission-support tools. The role requires Linux-based development, relational database experience, customer-facing communication, and extensive web development expertise.

Develop and configure IBM TRIRIGA solutions for facilities and real property management. Translate stakeholder requirements into functional designs, workflows, test cases, and implementation plans. Collaborate with business sponsors, end users, maintenance technicians, and technical teams on solution design, troubleshooting, effort estimation, testing, documentation, and delivery. Work independently in cloud environments while supporting federal and commercial clients remotely.

Develop and optimize Microsoft .NET applications, legacy systems, and microservices with a focus on performance, scalability, reliability, and observability. Responsibilities include code reviews, performance testing, CI/CD integration, architecture and sprint delivery, legacy code and SQL tuning, cloud application deployment on Azure, automated testing, and resolving customer issues. The developer collaborates with architects, QA, technical support, and cross-functional teams using SAFe Agile practices.

Senior backend engineer responsible for designing, building, testing, and documenting scalable Node.js/TypeScript services and APIs. Lead projects end-to-end, enforce coding standards, write technical specifications, optimize performance, and mentor junior engineers. Champion Agile and CI/CD practices while providing technical thought leadership on backend architecture and data modeling.

Design, implement, test, and modernize backend services and integrations (TypeScript/Node.js and C++). Lead large projects, write technical specifications and API contracts, enforce coding standards, coach engineers, and drive legacy-to-modern migrations within online banking and core systems.

Own end-to-end development of customer-facing web platform features, emphasizing React and TypeScript frontend development while contributing to Python backend services. Translate product concepts and designs into reusable, intuitive UI components, partner with Product and Design, engage directly with users, and use AI-powered tools to accelerate development while maintaining code quality and performance.

Develop and enhance Ferguson’s custom Trilogie ERP system across multiple functional areas. Responsibilities include designing business-process solutions, owning software projects through implementation, integrating APIs and web services, collaborating with analysts, product owners, QA teams, administrators, and vendors, writing unit tests, reviewing code, and optimizing performance in high-transaction environments. The role also supports Trilogie’s migration from Unix to Linux and requires extensive UniBasic or Pick-based development experience.

Design and implement C++ features for MongoDB’s replication infrastructure, improving availability, recovery, consistency, performance, and fault tolerance. Diagnose distributed-systems issues, develop comprehensive tests, collaborate across engineering teams, participate in design and code reviews, and mentor junior engineers. The role involves owning technical work from investigation through delivery and contributing to major MongoDB releases.

Lead the design, development, and operation of integrations and API products. Establish standards for API contracts, authentication, authorization, versioning, reliability, observability, documentation, and developer experience. Drive cross-team system architecture, production readiness, scalability, security, and resilience while mentoring engineers and aligning technical decisions with product and business goals.