ManTechseeks a motivated, career and customer-oriented Enterprise IT Support Officers (EITSO) – Phone Tech to join our team inMcLean, VA. In this role you are responsible for the installation, maintenance, and support of telecommunications systems, including VoIP and legacy phone systems.Responsibilities include, but are not limited to: Supporting all facets of phone installations and troubleshooting a variety of telephones.Installing, pulling, terminating, and dressing cabling appropriately according to industry and Sponsor standards.Troubleshoot and repair faulty connections, dropped calls, or hardware issuesConfigure call routing, voicemail, extensions, and phone features.Local travel may be required between customer buildings or temporary assignment to an alternate location in support of special projects.Member of a team comprised of a variety of skills that provide coverage from 6:00 a.m. – 6:00 p.m. with flexibility to support 24x7 operations; may need to work extended hours during critical peaks and be available to meet last minute requests.Minimum Qualifications:Bachelor’s Degree and 2+ years of experiences, or a combination of education and work experience equivalent to 6+ years.Excellent knowledge of various cabling methodologies, industry standards, troubleshooting techniques, and reading/understanding cable run lists.Experience with installing endpoints including but not limited to desktop IT equipment, printers, VOIP and digital phones, network switches.Experience resolving technical problems and answering queries by that involve computer hardware, network, and telecommunications systems.Preferred Qualifications: Related work experience in IT hardware and cabling installation.Experience with implementation on the Sponsor's network LAN infrastructure.Ability to adapt to quickly changing tasks and requirements and the ability to quickly learn new skills while on the job.Clearance Requirements:Must have a current/active TS/SCI with PolygraphPhysical Requirements: Must be able to remain in a stationary position at least 25% of the time. Constantly operate a computer, phone, and other office equipment for extended periods of time.Must be able to move/traverse within and between buildings and offices majority of the time, position self to maintain equipment and cabling, including under the desks, while moving floor tiles, and in server closets, some of which may be confined spaces.Must be able to move Audio/Visual or Computer equipment weighing 50+ pounds, some equipment may require team-lift or the use of carts. Ascends/descends a ladder, 10+ feet high while pulling cables and adjusting equipment.

ManTechseeks a motivated, career and customer-oriented Enterprise IT Support Officers (EITSO) – Complex Projects Network Installer to join our team inMcLean, VA. In this role, serve on a team of IT support professionals responsible for installing network equipment while providing a productive and collaborative computer workspace (new or renovated) to support dynamic mission requirements.Responsibilities include, but are not limited to: Supporting all facets of network installations, which includes the physical placement of CAT5 and fiber optic cable, wall jacks, racks, and communications equipment as required.Installing, pulling and terminating cable, determining and implementing required pin outs, cards power supplies, testing and documenting installations, dressing and labeling cables, racks, patch panels, etc.Supporting projects that include cabling and implementation in accordance with design documents and build-to packages.Local travel may be required between customer buildings or temporary assignment to an alternate location in support of special projects.Member of a team comprised of a variety of skills that provide coverage from 6:00 a.m. – 6:00 p.m. with flexibility to support 24x7 operations; may need to work extended hours during critical peaks and be available to meet last minute requests.Minimum Qualifications:Bachelor’s Degree and 4+ years of experiences, or a combination of education and work experience equivalent to 8+ years.Excellent knowledge of various cabling methodologies, industry standards, troubleshooting techniques, and reading/understanding cable run lists.Experience with installing endpoints including but not limited to desktop IT equipment, printers, VOIP and digital phones, network switches.Experience resolving technical problems and answering queries by that involve computer hardware, network, and telecommunications systems.Preferred Qualifications: Related work experience in IT hardware and cabling installation.Experience with implementation on the Sponsor's network LAN infrastructure.Ability to adapt to quickly changing tasks and requirements and the ability to quickly learn new skills while on the job.Clearance Requirements:Must have a current/active TS/SCI with Polygraph.Physical Requirements: Must be able to remain in a stationary position at least 25% of the time. Constantly operate a computer, phone, and other office equipment for extended periods of time.Must be able to move/traverse within and between buildings and offices majority of the time, position self to maintain equipment and cabling, including under the desks, while moving floor tiles, and in server closets, some of which may be confined spaces.Must be able to move Audio/Visual or Computer equipment weighing 50+ pounds, some equipment may require team-lift or the use of carts. Ascends/descends a ladder, 10+ feet high while pulling cables and adjusting equipment.

ManTech seeks a motivated, career and customer-orientedJunior Software Developer to join our team inMcLean, VA. In this role, you will be an experienced Linux and Ruby on Rails Developer with a strong background in Telephony Engineering to serve on a Dedicated Support Team of Network Telephony Installers supporting the Voice Program Recap Office (VPRO). You will leverage your expertise in Linux systems, Ruby programming, Ruby on Rails, and telephony systems to design, develop, and maintain voice media gateways that integrate with telephony infrastructure.Responsibilities include, but are not limited to:Design, implement, and maintain web applications using Ruby and Ruby on Rails.Work on integrating telephony systems (e.g., VoIP, analog, ISDN) along with voice media gateways and associated service modules.Manage and configure Linux servers (Ubuntu, CentOS, etc.) for hosting applications, ensuring performance, stability, and security.Develop and Test on Linux based servers. Must be capable of developing and installing PowerBuilder based programs and Korn shell-based servers.Troubleshoot, configure, and optimize telephony software.Work independently developing and testing servers.Monitor server performance, troubleshoot issues, and optimize systems for scalability and reliability.Maintain clear technical documentation for telephony integration and deployment processes.Minimum Qualifications: BA/BS and 2 years of experience, or a combination of education and work experience equivalent to 6 years.Strong experience with Ruby programming and understanding of the Ruby on Rails framework, or the ability to learn Ruby with strong experience with Python with Django or Flask.Strong verbal and written communication skills to interact effectively with cross-functional teams.Experience editing, updating, and modernizing legacy code.Preferred Qualifications:Experience integrating telephony systems with web applications (e.g., handling inbound/outbound calls, IVR, call routing).Knowledge of security best practices for telephony, server administration, and web applications.Knowledge and hands on experience with telephony systems and Linux server management, including installation, configuration, troubleshooting, and performance optimization.Qualified in Oracle Database Administrator.Experience provisioning telephony services.Clearance Requirements:Must have a current/active TS/SCI with Polygraph.Physical Requirements:Must be able to remain in a stationary position at least 50% of the time. Constantly operate a computer, phone, and other office equipment for extended periods of time.

ManTech seeks a motivated, career and customer-oriented Data Scientist to join our team in Chantilly, VA.In this dynamic role, you will join a top-tier team of Information Technology and Analytic professionals dedicated to supporting national security through innovative data science and analytics. You will work in a self-contained Big Data environment where the team manages everything from infrastructure and application development to advanced analytics. This position offers numerous opportunities for growth, collaboration, and problem-solving in a thought-provoking, mission-driven setting.Responsibilities include but are not limited to:Working with large, complex, and disparate data setsDesigning and implementing innovative ways to analyze and exploit the Sponsor’s data holdingsResearching and reporting on a wide variety of Sponsor inquiriesProactively identifying areas for analysis or exploitation and raising inquiries to the SponsorApplying advanced analytical methodologies to solve difficult, non-routine problems and improve analytic processesDeveloping custom searchesParticipating in threat hunting and/or developing advanced, novel detection mechanisms to counter malicious actorsMinimum Qualifications:High School Diploma with 2+ years of experience coding/scripting in PythonDemonstrated knowledge of appropriate analytic tools and methodologies in one or more of the following:Applied mathematics (e.g., probability and statistics, formal modeling, computational social sciences)Computer programming (e.g., programming languages, math/statistics packages, computer science, machine learning, scientific computing)Ability to collect information and accurately visualize and represent it to non-technical stakeholdersPreferred Qualifications:Understanding of algorithms for classification, regression, clustering, and anomaly detectionKnowledge of relational databases including SQL and large-scale distributed systems such as HadoopExperience with statistical data analysis (e.g., linear models, multivariate analysis, stochastic models, sampling)Background in computer network operations, particularly network defense and/or exploitationExperience in signature development, threat hunting, and/or threat modelingClearance Requirements:An active TS/SCI with Polygraph is requiredPhysical Requirements:Use hands to operate a computer and other office productivity machinery, such as a calculator, copy machine, and computer printerThe person in this position needs to occasionally move about inside the office to access file cabinets, office machinery, etc.Constantly positions self to maintain computers in the lab, including under desks and in the server closet

ManTech seeks a motivated, career and customer-oriented Application Developer to join our team in Chantilly, VA The Application Developer will be dedicated full-time to development and enhancement support for existing applications as well as new development.Responsibilities include but are not limited to:Designing, programming/developing, and modifying software systems, applications, and tools, both existing and potentially new in the futureAnalyzing user needs and software requirements to determine feasibility of design within time and cost constraintsCollaborating with teammates, other service providers, vendors, and users to develop new program featuresDeveloping unit and integration tests, in addition to participating in functional and regression tests to ensure programs will produce the desired results and that instructions are correctCorrecting errors by making the appropriate changes and then re-checking the program to ensure the desired result was produced. As well as, reviewing help desk messages periodically and working with other teams to troubleshoot and resolve production issuesParticipating in code reviews by reviewing and incorporating feedback from teammates as well as providing feedback to others based on existing standards and recommended programming practices.Deploying code to development, test, and production environments using existing DevOps infrastructure/toolsMinimum Qualifications:High School Diploma/GED with 2+ years of experience in the Information Technology fieldStrong Java programming/development skills, with hands-on experienceExperience with HTML, CSS, JavaScript, and at least one modern front-end framework, preferably AngularExperience with, or knowledge of, the Spring Framework and RESTful services and SQL, ORM libraries such as Hibernate/JPAExperience with Git branching and merging within a team to manage source codePreferred Qualifications:Strong ability to manage competing priorities and communication to multiple stakeholdersExperience with, or knowledge of, ElasticsearchExperience with, or knowledge of, best practices for developing secure web applicationsClearance Requirements:An active TS/SCI with PolygraphPhysical Requirements:Use hands to operate a computer and other office productivity machinery, such as a calculator, copy machine and computer printer.The person in this position needs to occasionally move about inside the office to access file cabinets, office machinery, etc.Must be able to remain in a stationary position 50% of the time

ManTech seeks a motivated, career and customer-oriented Senior Software Developer - Cloud to join our team in Chantilly, VA. Responsibilities include but are not limited to:Designing and implementing large-scale ingest systems in a Big Data environmentOptimizing all stages of the data lifecycle, from initial planning, to ingest, through final display and beyondDesigning and implementing data extraction, cleansing, transformation, loading, and replication/distributionDeveloping custom solutions/code to ingest and exploit new and existing data sourcesWorking with Sponsor development teams to improve application performanceOrganizing and maintaining documentation so others are able to understand and use itCollaborating with teammates, other service providers, vendors, and users to develop new and more efficient methodsMinimum Qualifications:High School Diploma/GED with 7+ years of experience in the Information Technology fieldStrong software development experience, to include significant Java development, data analysis/parsing, and SQL/database experienceStrong experience with the full data lifecycle, from ingest through display, in a Big Data environmentStrong experience with Java-related technologies, such as JDK, J2EE, EJB, JDBC, and/or Spring, and experience with RESTful APIsExperience developing and performing ETL tasks in a Linux environmentPreferred Qualifications:Experience with Hadoop, Hbase, MapReduceExperience with ElasticsearchExperience with NiFi, Kafka, and ZookeeperClearance Requirements:An active TS/SCI with PolygraphPhysical Requirements:Use hands to operate a computer and other office productivity machinery, such as a calculator, copy machine and computer printer.The person in this position needs to occasionally move about inside the office to access file cabinets, office machinery, etc.Must be able to remain in a stationary position 50% of the timeThe person in this position frequently communicates with co-workers, management and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations

ManTech seeks a motivated, career and customer-oriented Senior Database Administrator to join our team in Chantilly , VAThe Senior Database Administrator will work as part of the overall DBA team to determine, implement, and maintain the most efficient ways to ingest, organize and store petabytes of data from disparate system.Responsibilities include but are not limited to:Participating in leading the design, development, and administration of Oracle 19c databasesDesigning and developing database code for ETL of data from multiple sourcesConducting performance tuning and forecasting system scalabilityRecommending appropriate procedure, query, or package changes and optimizations to ensure and improve system performance and reliabilityInstalling and configuring database environmentsas well as performing database backups and restoresManaging, monitoring, and administering of Oracle database systemsParticipating in server and storage capacity management, planning and providing technical support in the evaluation of database systems and database designMinimum Qualifications:High School Diploma with 7+ years of experience in the Information Technology fieldSignificant experience with Oracle 19c+ architecture and database design, and related Oracle technologies (Partitioning, Encryption, Pluggable Database, etc.) on Linux systemsSignificant Oracle Exadata and PL/SQL developer experienceOracle Label Security (OLS) experience coupled with significant experience and knowledge in methodologies to improve database query performance.Significant experience in the optimization of database environmentsStrong understanding of high-availability solutions, architecture, backup methodologies and their implementation (RMAN, Data Guard)Experience managing and tuning very large databases (terabytes and petabytes) and with automating, scripting, and streamlining processes for efficiency and accuracy with strong documentation skills.Preferred Qualifications:Experience with PostgreSQL architecture, database design, administration, and related technologies.Knowledge of Oracle Cloud TechnologyOracle OCP or OCM certification(s)Linux experience as relevant to database O&MKnowledge of multiple data-storage technologiesAbility to work with multiple teams to enhance their code and improve performance.Clearance Requirements:An active TS/SCI with PolygraphPhysical Requirements:Use hands to operate a computer and other office productivity machinery, such as a calculator, copy machine and computer printer.The person in this position needs to occasionally move about inside the office to access file cabinets, office machinery, etc.Constantly positions self to maintain computers in the lab, including under the desks and in the server closet