Lead Principal Software Engineer

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

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.

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.

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.

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.

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.

Join dev2 as a Lead Full Stack Software Engineer, where you will leverage your expertise in Java, Python, Angular, and React to drive innovative solutions. You will be responsible for leading a dynamic team of developers, overseeing project lifecycles from conception to deployment, and ensuring the delivery of high-quality software products.Your role will involve collaborating with cross-functional teams to understand business requirements, design scalable architectures, and implement best practices in software development. If you are passionate about technology, thrive in a fast-paced environment, and want to make a significant impact, we would love to hear from you!

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.

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.

Who We Are:At Exiger, we are dedicated to transforming supply chains into a competitive advantage, striving to create a safer and more transparent world. Our cutting-edge AI platform, 1Exiger, provides immediate visibility into intricate supplier ecosystems. By harnessing proprietary data and advanced AI, we identify risks, automate compliance, and unlock efficiencies that bolster long-term resilience. Trusted by over 550 global clients, including Fortune 500 companies and U.S. government agencies, Exiger is recognized as an award-winning leader in supply chain AI and is a FedRAMP® authorized provider.About the Role:As a Senior Software Engineer at Exiger, you will play a pivotal role in architecting and developing software solutions that meet project requirements and enhance our flagship platform. Your responsibilities will encompass creating, maintaining, and improving APIs and backend services. You will own features from their initial concept through deployment, collaborate closely with cross-functional teams, and automate manual processes to enhance operational efficiency.If you are ambitious, eager to learn, and passionate about crafting innovative software solutions that benefit our clients, this opportunity at Exiger is perfect for you.

At Appian, we embody the values of Intensity and Excellence, which define our culture and drive our success. We set ambitious standards and strive to meet them, ensuring that every endeavor is executed with precision and quality. Our team approaches challenges with determination and commitment, holding ourselves accountable to achieve the best possible outcomes. By joining Appian, you will become part of a dedicated team that thrives on collaboration and achieving ambitious goals together. As a Distinguished Software Engineer at Appian, you will possess the insight, expertise, and communication skills necessary to guide the technical vision of our products. Serving as a key resource for fellow engineers within feature teams, you will also act as a trusted advisor to product management. Collaborating with other architects, you will champion platform consistency, inspire design best practices, and continuously enhance Appian's technological landscape. This position is located at our headquarters in McLean, VA. Appian thrives on a culture of in-person collaboration, which we believe is essential for our success. Employees in this role are expected to work onsite five days a week to foster this collaborative environment, maximizing opportunities to connect and celebrate our accomplishments together. Responsibilities:Lead transformative technical initiatives independently, addressing complex business challenges.Research and implement technology trends and innovations relevant to Appian.Identify technical constraints to engineering efficiency and spearhead initiatives to resolve them.Take full ownership of an operational or functional area within the architecture team.Deliver product features that meet the highest engineering standards as part of collaborative teams.Develop robust architectural solutions to clear the path for feature development.Conduct and present design reviews regularly.Advise product management on technical opportunities and limitations.Provide technical expertise and design guidance to multiple engineering teams.Mentor and exemplify best practices for fellow engineers.Document and promote design best practices for world-class software development.Contribute innovative ideas to enhance the organization and processes within the architecture function.Communicate effectively on technical developments and decisions.

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.

Join our innovative team at dev2 as a Senior Android-Hybrid Software Engineer. In this pivotal role, you will leverage your expertise in hybrid application development to craft cutting-edge solutions that enhance user experiences. Collaborate with a dynamic group of professionals dedicated to pushing the boundaries of technology.

About the Software Engineering Internship Appian Corporation offers a Software Engineering Internship in McLean, Virginia. This role provides direct experience with software development alongside experienced engineers. Interns participate in real projects and contribute to the team’s work. What to Expect Work closely with Appian’s engineering team on active development projects Build programming skills through hands-on assignments Gain practical experience in the technology sector

At Range, we are pioneering AI-driven solutions designed to simplify financial complexities for our members. Our mission is to revolutionize wealth management by seamlessly integrating state-of-the-art technology with human insight. We prioritize member experience above all else! Our comprehensive platform addresses a wide range of financial needs—investments, taxes, retirement planning, and estate management—consolidated into one user-friendly system.Supported by the visionary investments of Google's Gradient Ventures and Cathay Innovations, we are in a phase of rapid expansion and are seeking extraordinary talent to join our dynamic team. Every member of Range plays a critical role in shaping our culture—from former CEOs and startup founders to industry leaders from top hedge funds and technology firms.If you're eager to create meaningful change in the financial services landscape, we invite you to bring your expertise to Range. Here, you will have the opportunity to significantly influence how individuals manage their financial journeys while collaborating with a team that celebrates achievements, makes impactful decisions, and pioneers innovative paths together.About the RoleAs a Senior Software Engineer at Range, you will be instrumental in defining project requirements and delivering innovative features through close collaboration with product teams, designers, and fellow engineers. This multifaceted role encompasses various aspects of software development, including Backend, Frontend, Infrastructure, QA, and Product.The ideal candidate will possess extensive experience in building and deploying high-quality, secure production services and platforms. As a full-stack engineer, you will guide engineering initiatives, establish technical direction, design scalable architectures, and develop products that exceed customer expectations. You will also collaborate with other technical leaders to enhance engineering excellence across the organization.This position is based at Range's headquarters in McLean, VA, requiring in-office work from Monday to Friday. Candidates not currently residing in the area must be willing to relocate as a condition of employment.Your ResponsibilitiesDesign, develop, and maintain secure, scalable web services for a global customer base using cutting-edge technologies.Gain a deep understanding of our product and actively engage with our community to better comprehend our users' needs.Establish and advocate for engineering best practices across the organization.Produce clean, efficient code, comprehensive tests, and thorough documentation.Your Qualifications7+ years of experience in software engineering.Proficient in multiple programming languages and frameworks.Experience with cloud services and infrastructure management.Strong problem-solving skills and the ability to work collaboratively in a team 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.

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.

Join Our MissionAt TheIncLab, we specialize in engineering innovative digital applications that empower mission-critical teams to excel. Here, your work will contribute to transformative technologies that truly make a difference.Your Role AwaitsWe are seeking a Senior Software Engineer to join our dynamic Research & Product Innovation team. This position focuses on rapid software prototyping for prospective clients, while also providing support for internal product development. Ideal candidates will be full-stack engineers with extensive experience in TypeScript, Node.js, and modern web development frameworks, as well as proficiency in Rust.You will take ownership of complex features, thriving in a fast-paced, experimental setting. The role requires you to work onsite at one of our offices in Nashville or Tampa three days a week.Key Responsibilities:Rapidly design and develop software prototypes, from backend APIs to frontend user interfaces.Create intuitive, responsive interfaces using modern frameworks such as React, Vue, or Angular.Architect scalable backend systems utilizing Node.js and TypeScript, employing Rust as necessary.Design and model data structures to support flexible and performant applications.Configure and integrate databases and external services effectively.Lead feature development while mentoring team members on best practices.Make informed technology and architecture decisions for new prototypes and experiments.Engage in code reviews, team planning, and technical discussions.Keep abreast of emerging technologies in web development and full-stack engineering.