Top Senior Software Engineer Jobs in Baltimore, MD

Design, develop, and maintain tools and services supporting the Atlassian suite (Jira, Confluence). Implement automation, CI/CD pipelines, containerized deployments (Docker/Kubernetes), and IaC (Ansible). Collaborate with cross-functional teams, create configuration documentation, and support mission customers for sustained operations.

Develop, maintain, and enhance complex software systems; design, code, debug, and test software components; customize and implement ServiceNow (ITSM/ITOM/HRSD/CSM) solutions and integrations using REST/SOAP; write scripts, business rules, ACLs, and queries; lead development teams; produce documentation; collaborate with systems and hardware engineers; ensure performance and deployment meet system requirements.

Develop, sustain, and troubleshoot the GHOSTGEM software suite (including DINO). Implement, test, and integrate applications with COTS/GOTS/FOSS components; build scripts and services using Linux, Bash, Python, containerization, CI/CD, NoSQL databases, orchestration, messaging, and IaC tools.

Develop and maintain system management infrastructure software and services for high-performance computing systems in Linux environments. Automate tasks using Bash and Python, implement CI/CD workflows with GitLab CI, and use Git for source control. The role requires collaboration within Agile methodologies and may involve Ansible, containerization, secret management, identity and access management, datacenter infrastructure management, observability platforms, and Atlassian tools.

Develops secure software for high-performance computing systems, including authentication, authorization, access controls, and permissions. Automates Linux-based processes with Bash, Python, Rust, and Ansible; manages CI/CD workflows using GitLab; and supports Linux administration, Git version control, and Agile development practices. The role is onsite in Annapolis Junction, Maryland, requires U.S. citizenship and a TS/SCI clearance with polygraph, and involves no travel.

Develop, sustain, test, integrate, and troubleshoot mission-critical software applications. The role requires Java and Spring development, Linux and Bash/Python scripting, SQL and NoSQL databases, containerization, Kubernetes orchestration, Helm deployments, messaging frameworks, CI/CD, infrastructure as code, and Git. The engineer will work onsite on government projects and must hold or obtain a TS/SCI clearance with polygraph.

Develops and maintains secure access-control and identity-management solutions for high-performance computing systems. Responsibilities include implementing RBAC and ABAC, Linux security administration, Keycloak-based IAM, identity federation and SSO, HashiCorp Vault integrations, Ansible automation, containerization, and GitLab CI/CD pipelines. The role requires Python and Bash development, Git version control, and compliance with government security standards. This is an onsite position supporting mission-critical government projects in Annapolis Junction, Maryland.

Design, implement, and optimize scalable data ingress and egress pathways for analytics workloads. Develop software using Python and Java, automate processes with Bash, orchestrate workflows with Apache Airflow, and process distributed big data using Apache Spark. Work with diverse data formats, SQL databases, data quality validation, anomaly detection, Jupyter, Git, and Linux tools. The role requires onsite work, U.S. citizenship, and an active TS/SCI clearance with polygraph.

Develop, test, integrate, sustain, and troubleshoot software applications for mission-critical government and intelligence projects. The role requires Linux, Bash, Python, containers, Kubernetes, Helm, MongoDB, RabbitMQ, GitLab CI/CD, Ansible, and Git experience, with potential Rust development. Work is onsite in Annapolis Junction and requires an active TS/SCI clearance with polygraph and U.S. citizenship.

Develop and maintain reliable, scalable data workflows and automation pipelines using Apache Airflow. Build, schedule, monitor, and optimize workflows supporting data engineering, analytics, and operational use cases. Use Python, Java, Bash, Linux, Apache Spark, containerization technologies, and Git. Collaborate with data engineers, platform teams, and stakeholders to deliver secure, observable, production-ready solutions for mission-critical government projects.

Develop and maintain enterprise software applications throughout the software development lifecycle. Research, design, modify, test, debug, document, and analyze software systems while providing advanced technical guidance. The role requires JavaScript development, ServiceNow expertise, strong communication and problem-solving skills, U.S. citizenship, and an active TS/SCI clearance with polygraph. This is an onsite position in Annapolis Junction, Maryland, with less than 10% travel.

Develop and maintain system management infrastructure software and services for high-performance computing systems in a Linux environment. Responsibilities include Python and Bash development, automation, containerization, CI/CD, source control, identity and access management, secret management, and infrastructure tooling. The role is onsite in Annapolis Junction, Maryland, requires U.S. citizenship and an active Top Secret/SCI clearance with polygraph.

Oversee and monitor live production operations for mission-critical software applications. Diagnose service disruptions, performance degradation, and operational issues; perform troubleshooting and corrective actions; support system sustainment; and collaborate with development and operations teams to improve reliability, efficiency, and continuous service delivery.

Develop and maintain full-stack web applications using Java, Quarkus, and PrimeFaces within an Agile software development team. Responsibilities include requirements analysis, development, installation, integration, testing, maintenance, enhancement, and troubleshooting. The role supports mission-critical data management applications and requires collaboration in a mature development environment, with AWS cloud technologies and CI/CD practices highly desired.

Develop and maintain full-stack Java web applications supporting intelligence-community data management and compliant data movement. Responsibilities include requirements analysis, software development, integration, testing, maintenance, troubleshooting, workflow development, and UI implementation. The role uses Agile practices and technologies including Quarkus or Spring Boot, PrimeFaces, APIs, Kafka or JMS, PostgreSQL, AWS, and GitLab CI/CD. An active TS/SCI clearance with current polygraph, five years of software engineering experience, and an approved certification are required.

Own end-to-end full-stack development across web applications, Chrome extensions, mobile platforms, and backend services. Build scalable React interfaces and Node.js microservices handling large datasets and concurrent requests. Translate customer needs into technical solutions, integrate APIs, create workflows and schemas, and deliver iterative, high-quality features. Collaborate autonomously with product and remote engineering teams while supporting post-launch improvements.

Develop and launch scalable full-stack web applications using PHP, Laravel, SQL, JavaScript, React, and related technologies. Responsibilities include building APIs, designing database schemas, optimizing queries and code, implementing secure and maintainable software, collaborating cross-functionally, mentoring junior developers, and owning features through production in an agile continuous-deployment environment.

Develop and maintain Splunk-integrated applications, APIs, scripts, services, and DevOps automation. Build data routing and transformation workflows, manage Git repositories, troubleshoot defects and escalated issues, and improve system reliability and performance. The role supports mission-critical intelligence operations and requires collaboration with data providers, consumers, technical teams, and stakeholders.

Designs, develops, tests, documents, and maintains scalable software and bioinformatics pipelines. Builds data models, ETL processes, APIs, microservices, databases, dashboards, and workflow integrations supporting genomic analysis such as assembly, mapping, variant calling, and annotation. Collaborates with analysts, scientists, clinical reviewers, laboratory staff, and developers to translate requirements into production-ready solutions. Optimizes queries and performance, applies CI/CD and testing practices, and ensures maintainable, well-documented software.

Develops, tests, documents, maintains, and enhances software solutions using Appian and related technologies. Integrates Appian with external systems and services, resolves technical problems, remediates security vulnerabilities, improves performance, and participates in planning and user-story analysis. The role follows software development processes, documents standards, and mentors engineers while helping prioritize work for a development team.

Build and operate infrastructure for evaluating coding agents and language models. Own end-to-end features across data models, APIs, background workers, and user interfaces; run sandboxed agent trials; develop scoring and task-quality systems; integrate models and benchmarks; optimize performance, concurrency, migrations, and reliability; and review code. The role requires independent ownership of production backend systems and hands-on LLM evaluation experience.

Design and build healthcare messaging solutions using C# .NET, RESTful APIs, Azure, and DaVinci FHIR. Develop web services, map healthcare message structures, write unit and integration tests, review code, troubleshoot production issues, and deploy software to Azure. Collaborate across teams, mentor junior engineers, manage complex projects, and improve prior authorization workflows.

Design, develop, test, deploy, and support full-stack enterprise applications for legal operations, matter management, document management, compliance, and business automation. Build React frontends, Java and Spring Boot microservices, APIs, integrations, event-driven solutions, and cloud-native deployments. Work with databases, Docker, Kubernetes, Azure, AWS, CI/CD, monitoring, security, and production support while collaborating with legal, compliance, product, architecture, and engineering teams in an Agile environment.

Develop and lead software efforts for unique underwater systems supporting U.S. Navy and Department of Defense customers. Responsibilities include software architecture, requirements analysis, documentation, testing, qualification, system integration, technical presentations, hardware trade studies, offshore installation support, and mentorship. The role requires collaboration with engineering leads, program managers, and customers, along with occasional work outside normal hours.

Develop and architect scalable iOS applications serving millions of users. Collaborate with Product, Design, and Engineering to deliver features, promote clean architecture and iOS best practices, monitor performance and crash analytics, and guide technical excellence. Requires strong Swift, SwiftUI, MVVM, API integration, persistence, testing, and code quality expertise.