Top Senior Software Engineer Jobs in Baltimore, MD

Develop and maintain full-stack mission applications using React, TypeScript, Node.js, Java, Python, PostgreSQL, Docker, and OpenShift. Build reusable UI components, backend services, REST APIs, database schemas, and automated tests. Troubleshoot production issues, support secure and reliable deployments, collaborate with customers and stakeholders, participate in design and code reviews, document solutions, and mentor developers.

Leads the development and deployment of data solutions using Palantir Foundry and AIP. Manages engineering teams, coaches team members, oversees project planning and execution, analyzes system interactions, manages client relationships, and drives innovation. The role applies software engineering, data engineering, analytics, and AI/ML techniques to deliver scalable client solutions while maintaining technical and professional standards.

Leads the development and deployment of software and data solutions using Palantir Foundry and AI/ML technologies. Responsibilities include data engineering, analytics, system improvement, client account management, project ownership, team leadership, coaching, stakeholder engagement, and continuous improvement. The role requires building scalable applications with large datasets and delivering customer-focused solutions.

Build and operate high-throughput backend services for AI agents, calendar, scheduling, integrations, real-time data pipelines, and APIs. Design platform infrastructure, event-driven systems, and client-server protocols using Go, PostgreSQL, Kubernetes, and cloud platforms. Collaborate with AI, product, and frontend teams, improve reliability through testing and infrastructure as code, and mentor junior engineers.

The Founding Engineer will lead the development of Sailor Health's AI-powered platform, building systems for patient care and mentor the engineering team.

Build the core AI platform for an AI-native trading experience. Develop a high-performance Rust backend supporting streaming responses, low-latency tool execution, caching, and model orchestration. Design secure, observable APIs and runtime components with authentication, authorization, rate limiting, auditing, tracing, retries, and fallbacks. Build safe trading action infrastructure with deterministic previews, confirmations, idempotency, and audit logs while partnering with product and frontend teams.

Own and improve Hex’s cloud infrastructure, CI/CD, observability, databases, security, cost management, and single-tenant deployment systems. The role involves selecting and delivering infrastructure projects, operating Kubernetes and AWS environments, scaling PostgreSQL, implementing infrastructure as code, and building customer-facing platform capabilities. Engineers are expected to handle on-call responsibilities, write application code when needed, and independently turn ambiguous infrastructure problems into shippable solutions.

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.

Develop high-performance backend services and mission-critical software for cleared operational environments. Responsibilities include translating research designs into software, designing scalable systems, collaborating with technical experts, mentoring developers, shaping architectures and roadmaps, and maintaining technical documentation. The role requires strong backend programming skills, enterprise software experience, and active TS/SCI clearance with full-scope polygraph. Work requires onsite presence at client locations in Maryland, with hybrid arrangements determined by contract and security needs.

Develop, integrate, test, and sustain mission-critical software and systems using Python, C++, GitLab, and Docker. Support architecture, CI/CD, containerized deployments, troubleshooting, documentation, code reviews, configuration management, networking, and system validation. Collaborate with multidisciplinary engineering teams to deliver solutions for complex defense and intelligence customer requirements.

Design, develop, integrate, test, and maintain complex software systems for cyber and intelligence missions. Analyze requirements, system performance, data flows, and operational issues; develop algorithms and database interfaces; lead software development activities; improve documentation and processes; and coordinate software installation and system functionality. The role requires extensive software engineering experience, an active U.S. security clearance with polygraph, and expertise in C++, Python, or Kubernetes.

Designs, develops, tests, deploys, troubleshoots, and manages incidents for software-defined networking components. Builds CI/CD and automated testing pipelines, manages software configuration and release cycles, develops applications in Python, JavaScript, Java, and SQL, and supports containerized, Kafka, and Elasticsearch environments. Provides technical leadership on configuration management, resolves infrastructure issues, mitigates technical risks, and collaborates with distributed Agile teams in a DoD environment.

Develop and deploy mission-critical software within a SAFe Agile and DevOps environment. Responsibilities include architecting server-side Java business logic, developing user interfaces, applying TDD and automation, integrating databases and application servers, and supporting secure systems engineering. The role requires collaboration, requirements decomposition, testing, continuous integration, and independent task prioritization while working with technologies including Java, Python, C/C++, SQL, Linux, Windows, and enterprise testing tools.

Own complex software systems and critical workflows end-to-end while ensuring reliability, performance, security, and maintainability. Lead architectural decisions, mentor engineers, manage incident response, improve system health, and communicate effectively with technical and non-technical stakeholders. The role requires extensive Ruby on Rails, AWS or equivalent cloud infrastructure, Linux production operations, frontend development, relational databases, testing, CI/CD, and observability experience.

Build, enhance, and maintain frontend web applications for data lake and warehouse environments. Develop JavaScript, CSS, and HTML code, collaborate with designers, backend engineers, and data scientists, integrate REST APIs, troubleshoot application issues, write unit tests, and perform quality assurance testing. The role requires hybrid work in Columbia, Maryland, U.S. citizenship, eligibility for a government security clearance, and Security+ certification within 60 days.

Develop and maintain software supporting U.S. government missions. The role involves daily software engineering responsibilities using Python, PySpark, and AWS services including Lambda, Glue, and DynamoDB. Candidates must hold an active Top Secret/SCI clearance with a favorable polygraph and be U.S. citizens. The position requires seven years of relevant software engineering experience and a bachelor's degree or an approved experience substitution.

Develops and secures access-control and permission-management solutions for critical HPC systems. Responsibilities include Linux security administration, RBAC/ABAC, IAM with Keycloak, identity federation, SSO, Vault integrations, Ansible automation, containerization, CI/CD, and Git-based development. The role requires maintaining compliance with agency security policies and industry standards while supporting mission-critical government systems.

Develop and maintain software solutions supporting U.S. government missions. Responsibilities include Java development, requirements gathering, documentation, workflow support, problem solving, and collaboration using tools such as Confluence and Jira. Desired experience includes AWS, Maven, Git, GitLab, MapReduce, JUnit, Python, Linux, streaming capabilities, and AI. The position requires an active Top Secret/SCI clearance with a favorable polygraph.

Designs, develops, deploys, and supports production software in high-performance Linux environments. Builds containerized applications and Kubernetes services using Python, Helm, and CI/CD automation. Develops generative AI solutions involving LLMs, RAG, embeddings, vector databases, and inference systems. Supports observability with Prometheus and Grafana, applies DevSecOps practices, and delivers secure, scalable mission-critical systems in a cleared environment.

Designs, implements, and optimizes data ingress and egress pathways for scalable analytics workloads. Develops software using Python and Java, automates processes with Bash, orchestrates workflows through Apache Airflow, and processes large datasets with Apache Spark. Responsibilities include SQL-based data manipulation, data wrangling, validation, anomaly detection, and handling structured and unstructured data. Requires a current Top Secret/SCI clearance with favorable polygraph.

Develop and maintain software supporting U.S. government mission needs using Python, Kotlin, Java, Terraform, Elasticsearch/OpenSearch, and AWS. The engineer will assist with daily software engineering responsibilities, innovate solutions, and contribute to projects of similar scope and complexity. The role requires a current Top Secret/SCI clearance with favorable polygraph, U.S. citizenship, seven years of software engineering experience, and a relevant bachelor’s degree or qualifying experience substitution.

Develops software for high-performance computing, large-data analytics, and advanced information technology programs. The role requires backend development using MongoDB, Scala, Java, and AWS, with some UI work. Candidates must have seven years of software engineering experience on comparable programs, a bachelor's degree or equivalent additional experience, and an active TS/SCI clearance with polygraph.

Develop and support front-end and full-stack ICAM products for Zero Trust architecture. Responsibilities include integrating React front-end and Java/Spring Boot back-end components, designing and implementing features, testing, deployment, production support, cloud integration, and CI/CD development. The engineer will collaborate with senior and principal contributors and communicate architecture and design concepts.

Develop, integrate, deploy, troubleshoot, and sustain enterprise software for DoD customers across the full SDLC. Build and enhance solutions using Java, Spring Boot, Python, PostgreSQL, NoSQL databases, and CI/CD practices. Collaborate with software, systems, QA, and DevOps teams; support installations, code reviews, testing, technical documentation, and defect resolution for the GATEKEEPER product.

Develop and maintain responsive, accessible front-end applications using React, Svelte, Vue.js, HTML, CSS, and JavaScript. Build end-to-end software solutions, improve system architecture, apply DOM manipulation, create reusable code, and collaborate in Agile environments. Integrate front-end applications with back-end services while supporting user experience, responsive design, performance, and long-term maintainability. The role requires TS/SCI clearance with polygraph and includes a skills assessment.