Top Software Engineer Jobs in Baltimore, MD

Design, build, and operate shared backend services and APIs. Own full SDLC, define service boundaries and data models, ensure scalability and reuse, apply DDD and systems thinking, and use AI-assisted tools to accelerate development while maintaining maintainability.

Build and ship lightweight internal full-stack tools end-to-end within small pods. Rapidly prototype, deploy, operate, and iterate tools using cloud platforms and AI-assisted development to improve team productivity and automate workflows.

Design, build, and ship full‑stack applications end-to-end within small pods. Own the full SDLC, deploy and operate cloud applications, contribute to architecture, and use AI-assisted tools to accelerate development, testing, and code quality while maintaining reliability.

Develop and maintain backend services for the Leap quantum-classical cloud platform. Deliver features across the SDLC, improve system performance and scalability, troubleshoot and resolve production issues, participate in code reviews and on-call rotation, mentor junior developers, and collaborate with cross-functional teams to ship reliable, high-quality software.

Lead design and development of software that interfaces with quantum processors, supporting calibration, hardware interfaces, testing, monitoring, and operational infrastructure. Drive architecture, optimize performance, mentor engineers, run technical investigations, and participate in on-call rotations to ensure QPU solver availability on the Leap cloud platform.

Lead and contribute to Elasticsearch core search and indexing capabilities. Define technical vision for indexing, retrieval, and relevance; research data structures and retrieval algorithms; drive roadmap for large-scale search systems; collaborate with product and cross-functional teams; mentor engineers and implement robust, high-performance search infrastructure.

As a Senior Software Engineer at SmithRx, you will design, develop, and maintain back-end architecture for our product suite using various programming languages, collaborate with stakeholders, ensure high-quality software, and mentor junior team members.

Lead end-to-end design, implementation, and operation of cloud partner integrations: auth/identity flows, multi-tenancy, data movement, CI/deployment, and observability. Own production systems and on-call duties, collaborate with partner platforms and internal teams, write design docs, and set technical defaults for a growing team.

As a Senior Backend Engineer, you will enhance Postscript's Fondue product by architecting scalable systems, driving decoupling, and implementing AI-first development practices while collaborating across teams.

As a Principal Software Engineer at Fetch, you'll design scalable systems for user engagement, drive experimentation, lead technical strategy, and mentor teams to improve engineering productivity and system reliability.

The Sr./Principal Software Engineer will design and implement core capabilities for SingleStore's cloud platform, focusing on scalability and reliability, while mentoring other engineers and collaborating with cross-functional teams.

Lead development and improvement of Firefox's Gecko accessibility engine: write and test C++ code, debug multi-process/multi-threaded and OS-specific issues, collaborate with design and product teams, influence web accessibility standards, build infrastructure exposing the web platform to assistive technologies, and ensure memory and performance targets are met.

Work on Firefox accessibility by improving the Gecko accessibility engine: write and test C++ code, debug multi-process/multi-threaded and OS-specific issues, collaborate with designers and other browser teams, influence web accessibility standards, and build infrastructure to expose the web platform to assistive technologies.

Design and develop scalable backend systems for SaaS applications, mentor engineers, and lead projects while collaborating with cross-functional teams.

The Staff Software Engineer will lead the software development lifecycle focusing on observability, design high-scale distributed systems, and mentor team members while ensuring technical excellence.

Design, build, and maintain backend systems and APIs for the Wikidata Query Service. Improve reliability, observability, automation, and scalability; monitor production, respond to incidents, support migrations, and collaborate across SRE, data, and product teams.

Develop, test, and maintain software systems including large-scale data platforms and real-time analytics. Collaborate with stakeholders to design features, write clean code, implement algorithms, create documentation, and ensure system reliability and performance.

Integrate, test, deploy, and troubleshoot mission services in on-prem enclaves and AWS. Perform Linux system administration, automation scripting (Bash/Python), install/configure COTS/GOTS/FOSS, manage Hadoop and NoSQL systems, apply IaC tools, and monitor systems with Prometheus/Grafana.

Lead Software Engineer responsible for Linux/Kubernetes/DevOps tasks, automating and maintaining Infrastructure as Code, building CI/CD pipelines, managing releases, scripting HPC provisioning, and improving deployment reliability and automation.

Design, develop, test, and maintain a mission-focused enterprise web application in a containerized Kubernetes/Linux environment. Collaborate with product and system engineers to implement scalable, secure services using Python, Bash, Docker, Helm, SQL, REST, and CI/CD.

The role involves developing, testing, and deploying scalable Java applications, optimizing Regex for data tasks, and normalizing data. Requires active TS/SCI clearance.

The Principal Software Engineer will develop and maintain complex software systems for government clients, ensuring adherence to design requirements, and leading initiatives in software problem resolution and enhancements.

Support sustainment, enhancement, and modernization of mission‑critical front-end applications. Develop and maintain JavaScript-based UIs (AngularJS, Vue.js, Node.js), participate in full SDLC, troubleshoot, deploy, write technical documentation, and collaborate with cross-functional teams under a government prime contract.

The Senior Software Engineer will support agile software projects, troubleshoot, maintain systems, mentor team members, and develop complete software solutions using various technologies.

As a Senior Software Engineer, you will design and implement software solutions, develop APIs, manage Kubernetes deployments, and mentor teams while working with modern technologies and collaborating within a hybrid environment.