Principal Engineering Lead

Location: McLean, VA (U.S. based). U.S. citizenship is required for all programs. All work must be performed within the continental United States. Role overview The Principal Engineering Lead works directly with Intelligence Community clients and acts as the primary technical liaison to the National Reconnaissance Office (NRO). This position leads a cross-disciplinary team, guiding both architecture and delivery for software and data platforms that support critical missions. The role shapes technical direction, influences design patterns, recommends tools, and provides advice on AI and machine learning strategies across several teams. What you will do Lead a cross-functional engineering team delivering solutions for Intelligence Community clients. Serve as Raft’s main technical representative to the NRO. Architect, build, and deploy software applications and data platforms at scale. Advise on design patterns, technology selection, and AI/ML approaches across teams. Work closely with problem solvers to address complex technical challenges. Requirements U.S. citizenship (required for all programs). Ability to work within the continental U.S. Extensive experience leading engineering teams and architecting large-scale solutions. Background in software application and data platform development, preferably for government or defense clients.

Location requirement: This position is open only to U.S. citizens and requires all work to be performed within the continental United States. Raft is a defense technology company based in McLean, VA. The team partners with U.S. military and government agencies to deliver AI/ML and data solutions, specializing in areas such as autonomous data fusion, Agentic AI, distributed data systems, and scalable platforms. Raft’s cloud-native products support federal and public sector clients and reach millions of Americans. Role overview The Lead Principal Software Engineer joins a collaborative team focused on building a data-driven product. This role covers both backend and frontend development, drawing on open source technologies including Kafka, Trino, DuckDB, and Superset. The main objective is to create seamless data interactions and empower users to generate meaningful data stories with the product. Key technologies Kafka Trino DuckDB Superset

Join Appian, a leading software development company, as a Principal Workday Engineer. In this pivotal role, you will leverage your expertise in Workday to design, implement, and enhance solutions that drive business efficiency and success. Collaborate with cross-functional teams to deliver innovative solutions that meet our clients' evolving needs.

Location: Remote (U.S.); DMV; McLean, VA; Boston, MA; San Antonio, TX; Colorado Springs, CO; Tampa, FL; Honolulu, HI Eligibility: U.S. citizenship required. All work must be performed within the continental United States. Raft delivers AI, machine learning, and data-driven solutions to U.S. military and government clients. The team specializes in autonomous data fusion, Agentic AI, distributed data systems, and building scalable platforms. Headquartered in McLean, VA, Raft partners with federal and public sector organizations to create digital solutions that reach millions of Americans, using design thinking and cloud-native technology. Role overview The Lead Principal MLOps Engineer plays a key part in supporting clients and collaborating with a team focused on complex, high-impact challenges. This position centers on building and maintaining mission-critical AI and data platforms for the Department of Defense. What you will do Work on platforms that process large volumes of real-time data from diverse sensors and operational sources. Transform raw data into actionable intelligence, supporting operators with timely decisions through mission applications and operational dashboards. Support a large-scale platform that manages billions of events daily, using low-latency data pipelines and cloud-native infrastructure. Advance the development of an end-to-end machine learning platform for model development, evaluation, deployment, monitoring, and lifecycle management across both cloud and constrained operational environments.

As a Lead Accessibility Engineer at Appian, you will play a pivotal role in ensuring our software solutions are accessible to all users. Your expertise will guide the development teams in implementing best practices and standards for accessibility. You will collaborate with cross-functional teams to enhance user experience, driving initiatives that promote inclusivity and accessibility across our platform.

Role Overview Appian Corporation is looking for a Lead Software Engineer to join the team at headquarters in McLean, Virginia. This position focuses on building and maintaining the Appian platform, with a strong emphasis on speed, scalability, and adaptability to meet evolving customer needs. What You Will Do Address complex challenges related to scalability and flexibility across the platform. Work on the high-performance data layer, ensuring reliability and efficiency. Contribute to the cross-platform user interface and the design tools that support it. Collaborate closely with colleagues to deliver solutions that serve customers in new and effective ways. Work Location and Culture This role is based onsite at Appian's McLean, Virginia headquarters. In-person collaboration is central to Appian’s approach, and employees in this position are expected to work in the office five days a week. The company values teamwork and the sharing of ideas to achieve high standards and outstanding results together.

Location: McLean, VA or Washington, D.C. This position requires U.S. citizenship and all work must be performed within the continental United States. Role overview The Lead AI/ML Engineer at Raft leads the design, development, and deployment of artificial intelligence and machine learning systems for mission-critical settings. This role oversees the entire lifecycle of AI solutions, from initial data ingestion and model training to production rollout. Close collaboration with engineers, data scientists, and product managers is part of daily work. This position connects advanced AI capabilities with practical applications. Working with both clients and internal teams, the Lead AI/ML Engineer ensures delivery of scalable, secure, and high-performance systems that operate in both cloud and edge environments. Key responsibilities Design and build AI and machine learning systems that integrate with high-performance data platforms. Manage the full lifecycle of machine learning solutions, from development through deployment and ongoing operation. Collaborate with cross-functional teams to deliver solutions that address client needs. Raft is a defense technology company based in McLean, VA, serving U.S. military and government agencies. The team specializes in advanced AI and machine learning, focusing on autonomous data fusion and Agentic AI. Raft delivers solutions for distributed data systems and large-scale platforms, developing digital tools that serve millions of Americans. The company emphasizes a cloud-native ecosystem and practical, transformative technology. Learn more at https://TeamRaft.com.

Tiger Analytics is seeking a highly skilled Lead Full Stack Engineer to become a pivotal member of our rapidly expanding advanced analytics consulting firm. Recognized as a trusted analytics partner for numerous Fortune 500 companies, we empower organizations to harness the full value of their data. Our expertise and leadership have earned accolades from leading market research firms, including Forrester and Gartner. We are on the lookout for exceptional talent to join our elite global analytics consulting team.In this role, you will leverage your extensive experience in modern web development, cloud-native architecture, and Generative AI (GenAI/LLM integration) to design and implement robust full-stack applications. Your hands-on expertise will encompass frontend, backend, and cloud platforms, ensuring the development of scalable, production-ready systems.This position demands technical depth, a strong architectural mindset, and the ability to thrive in a dynamic hybrid work environment.

Secret clearance requiredAbout AretumAretum is a forward-thinking organization dedicated to providing cutting-edge, technology-driven solutions to clients across the defense, civilian, and homeland security domains. Our teams thrive at the intersection of strategy, technology, and transformation, empowering agencies to tackle their most pressing challenges. We prioritize investing in our workforce and fostering a culture centered on collaboration, inclusion, and professional development.Job OverviewAs a federal consulting organization, Aretum requires its employees to handle Controlled Unclassified Information (CUI) and comply with relevant safeguarding and compliance protocols. All team members may also support proposal efforts, which may involve resume formatting, skill alignment summaries, participating in meetings, or contributing to solution development based on their expertise.Key ResponsibilitiesLead the development of data pipelines and platforms, including writing and reviewing high-quality production code.Oversee the complete delivery process for assigned pipelines and services.Design, enhance, and maintain ETL/ELT pipelines for large-scale data ingestion and transformation.Implement CI/CD practices and automated testing for data pipelines, ensuring integration tests, data validation, and release workflows are in place.Establish operational readiness for production data workflows.Optimize pipeline and storage performance and cost through tuning, partitioning, and right-sizing workloads within AWS GovCloud.Contribute to and apply modern data architecture patterns, including lakehouse methodologies.Support Department of Defense strategic initiatives and enterprise data modernization efforts through robust architectural implementation.Drive the creation and maintenance of data transformation roadmaps and technical documentation; assist with data maturity assessments and current-state analyses across various agency programs.Translate technical methodologies into clear, business-friendly frameworks and actionable recommendations.Collaborate with cross-functional teams and program offices to clarify data requirements, facilitate data-driven decision-making, and convert technical approaches into comprehensible business frameworks.Assist in delivering leadership priority initiatives (e.g., childcare forecasting, Military OneSource analytics, readiness dashboards) and design data solutions that effectively connect outreach efforts to program engagement and readiness outcomes for users with diverse technical expertise.

Join Appian as a Principal Technical Consultant where you will leverage your technical expertise to deliver innovative solutions for our clients. You will play a pivotal role in guiding project teams, ensuring successful implementations, and fostering client relationships. Your deep understanding of our platform will empower you to drive solutions that meet client needs effectively.

At Appian, we embody the principles of Intensity and Excellence, which are central to our identity. We uphold high standards in all aspects of our work, ensuring that quality and care are at the forefront of our efforts. We tackle challenges with unwavering ambition and dedication, holding ourselves accountable to deliver exceptional results. Join our passionate team at Appian, where we strive to achieve remarkable outcomes together. As a Lead Software Engineer within our Foundational Infrastructure Group, you will play a pivotal role in re-architecting our platform for public cloud environments, enabling swift, reliable, and impactful changes. Your mission is to maintain our top-tier infrastructure, ensuring it is consistently available, responsive, and equipped to meet the diverse demands of a dynamic, high-performance development team. Collaborating within an agile, global team, you'll help transition our systems to a modern services architecture that facilitates the integration of microservices and containerization technologies.This position is based in our headquarters in McLean, VA. At Appian, we foster a culture of in-person collaboration, which we believe is essential to our mission of excellence. Employees in this role are expected to work in the office five days a week to enhance our culture and ensure that we thrive through shared ideas and teamwork. We believe that working together in the office offers more opportunities to celebrate our achievements with the exceptional people at Appian.

Core One is actively seeking a highly skilled Principal Support Administrator to provide essential support to the US Government in the dynamic Northern Virginia area. This role demands a candidate with a current TS/SCI with Polygraph clearance. The Principal Support Administrator will play a critical role in efficiently managing the principal's calendar, addressing unscheduled demands, and preparing for meetings. Additionally, the position may involve coordinating and overseeing administrative support for other staff members within the principal's team.Key Responsibilities:Calendar Management: Effectively manage and schedule appointments by leveraging a deep understanding of the principal's responsibilities in relation to mission objectives. Collaborate with various internal and external contacts to resolve calendar conflicts.Principal Support: Prioritize urgent demands and discern which issues require the principal's attention, utilizing sound judgment and knowledge of agency priorities. Gather relevant information for the principal to address concerns and ensure timely follow-up on assigned actions.Liaison Duties: Act as a diplomatic liaison for the principal, engaging with personnel at all levels within and outside the organization. Communicate the principal's requirements and priorities clearly and courteously, whether verbally or in writing.

Join Appian as a Principal Consultant focused on the Public Sector, where you will leverage your expertise to drive transformative solutions for government entities. In this pivotal role, you will collaborate with clients to optimize their operations and implement innovative strategies using Appian’s cutting-edge technology.

Raft is seeking a Principal MLOps Engineer to help build and scale advanced AI and data platforms for the Department of Defense. This position plays a key role in transforming large volumes of real-time sensor and operational data into actionable intelligence, supporting critical decision-making for operators through mission applications and operational displays. What you will do Advance mission-critical AI and data platforms that process billions of daily events with low-latency pipelines and cloud-native architecture. Support the development of an end-to-end machine learning platform for model development, evaluation, deployment, monitoring, and lifecycle management. Ensure the platform operates effectively across both cloud infrastructure and resource-constrained environments. Location This role is open to remote work within the United States as well as in DMV, McLean, VA, Boston, MA, San Antonio, TX, Colorado Springs, CO, Tampa, FL, and Honolulu, HI. Eligibility U.S. citizenship is required. All work must be performed within the continental United States.

Location: McLean, Virginia Focus: Public Sector (DoD, Intel, Civilian agencies) Role Overview The Principal Solutions Architect at Appian shapes technical strategy for high-impact federal projects. This senior role builds technical credibility, influences acquisition strategies, and acts as a trusted advisor within government agencies. The position sits at the top of the Solutions Consultant career path, combining enterprise strategy, deal orchestration, and platform advocacy. Appian's SC 2.0 initiative is redefining pre-sales in the public sector. Solutions Consultants here work closely with clients to craft modernization strategies, ensure technical excellence, and maintain federal compliance. For more about SC 2.0, listen to our Global SC leader, Gregg Aldana, discuss it here. What You Will Do Orchestrate Complex Federal Deals & Growth Plans Lead technical strategy for multi-million-dollar public sector contracts, including Enterprise Growth Plans. Navigate complex acquisition processes, ensuring both compliance and alignment with agency missions. Coordinate with internal teams, partners, and executive stakeholders to secure technical wins at key federal agencies. Guide Federal Mission Strategy & Executive Engagement Serve as a strategic advisor to agency executives and senior leaders (SES, flag officers). Run visioning workshops, architecture reviews, and briefings that connect Appian to modernization and digital transformation efforts. Translate mission requirements into Appian-powered roadmaps focused on agility, resilience, and measurable value.

As a Principal Associate in our Cyber Security Operations Center (CSOC), you will play a pivotal role in safeguarding our organization's digital assets. You will be responsible for monitoring, detecting, and responding to security incidents while employing advanced threat detection methodologies. This position requires a blend of technical expertise, analytical skills, and the ability to work collaboratively in a fast-paced environment.

At Agile Defense, we believe that proactive action shapes outcomes and that new challenges inspire innovative solutions. Our forward-thinking approach embodies an unwavering spirit and the courage to build for the future.Our mission is to deliver adaptive innovation that supports our nation’s most critical missions. We achieve this through the seamless integration of cutting-edge technologies, exceptional talent, and unmatched agility—a foundation built on speed, flexibility, and creativity to safeguard and enhance our nation's vital interests.Requisition #: 1107Job Title: Senior Solutions Engineering LeadSalary Range: indicative of total compensation $185K-$265KSUMMARYAgile Labs serves as the innovation powerhouse of Agile Defense, focused on swiftly developing, prototyping, and operationalizing next-gen capabilities for both our federal and commercial clients. From mission-specific GenAI assistants to DevSecOps pipelines and threat-informed cyber platforms, our Lab transforms ambitious ideas into scalable, field-ready solutions. Our multidisciplinary teams excel in research, design, engineering, and delivery, empowering clients to adopt state-of-the-art technology rapidly while adhering to the highest security and compliance standards.The Vice President of Solutions Engineering is responsible for establishing the technical vision and delivery framework for Agile Labs. This role merges hands-on architecture expertise with executive-level portfolio management. You will create strategic roadmaps for Applied AI, cloud-native applications, DevSecOps, and Cyber Defense offerings, leading distributed teams in translating these strategies into production systems. As the chief engineer, you will interact with C-level stakeholders, converting mission requirements into actionable backlogs and working prototypes, while authoring compelling technical proposals and white papers. Furthermore, you will foster a culture of experimentation, swiftly constructing prototypes that mitigate the risks associated with emerging technologies, including multimodal foundation models, autonomous agents, confidential compute, and software supply chain security. Internally, you will mentor engineering excellence among over 2000 employees through Community of Practice forums, Labs solutions, and enablement programs, ensuring our workforce stays ahead of industry trends.JOB DUTIES AND RESPONSIBILITIES· Define and uphold the solutions architecture framework and reference implementations for all Agile Labs service lines.· Lead opportunity shaping, technical capture, and proposal writing for new business, owning the end-to-end solution narrative.· Oversee delivery execution...

At Two Six Technologies, we are pioneers in developing and implementing cutting-edge solutions that address the most intricate challenges facing the world today. Through exceptional collaboration and steadfast trust, we redefine the limits of possibility, empowering our team and supporting our clients in the pursuit of a safer global future.We are actively searching for a highly skilled and proactive Principal Systems Engineer to join our dynamic team. This pivotal role encompasses the effective provisioning, installation, configuration, operation, and maintenance of our systems hardware, software, and related infrastructure. You will be engaged in the entire process lifecycle, from technical research to application and product delivery, ensuring adherence to our organizational values for staff, volunteers, and partners. The successful candidate will oversee the functionality and efficiency of multiple computer domains running Windows operating systems, as well as manage Unix/Linux maintenance through tools such as Active Directory, Group Policy, SCCM, PowerShell, VMWare, and Centrify.

At Appian, we embody the values of Intensity and Excellence. Our commitment to high standards ensures that we approach every challenge with ambition and accountability. Join our passionate team dedicated to achieving remarkable results together.The Principal Security Analyst plays a pivotal role in guiding federal clients in the design, implementation, and maintenance of secure Appian-based solutions. This position demands a thorough understanding of cybersecurity principles, the government IT security authorization process, and proficiency in the NIST Risk Management Framework (RMF) and Authority to Operate (ATO) processes. The successful candidate will lead clients through the security authorization process, assist in developing secure architectures, and mentor junior analysts while working with cloud platforms such as Amazon Web Services (AWS) and Microsoft Azure.This role is based at our headquarters in McLean, VA, where in-person collaboration fosters a culture of success. Employees are expected to be in the office 4 - 5 days a week to maximize opportunities for teamwork and connection with exceptional colleagues.

CoreOne seeks an Authorization and Accreditation Lead based in McLean, VA. This role steers important compliance efforts and manages the full accreditation process for the organization. The Lead plays a key part in shaping strategies that help CoreOne meet regulatory requirements and maintain operational integrity. Responsibilities Coordinate and oversee all accreditation activities across the organization Develop and improve methods to support ongoing regulatory compliance Direct authorization protocols, ensuring accurate and consistent application Promote strong compliance practices that protect and advance CoreOne’s operations