Cloud Engineer Specialist MindlanceCloud Engineer SpecialistMcLean, VA3 years with cloud infrastructure: Kubernetes/Docker, cloud databases, application servers, networking (VPC, load balancers, API gateways), Linux, and security/data flows. History of contributing to production deployments in an engineering role Core Competencies - Supporting: OAuth & Authentication: Building OAuth solutions for cloud service authentication and authorization.
Senior AWS Cloud Engineer Macpower Digital Assets Edge Private LimitedSenior AWS Cloud EngineerMaclean, VA$65 / hourThe role involves designing, developing, and deploying cloud-native applications, implementing serverless architectures, and managing CI/CD pipelines for automated deployments. Job Overview: Seeking an experienced Senior AWS Cloud Engineer with strong expertise in backend development using Java (Microservices) and AWS cloud services.
Software Engineer III ProsyncSoftware Engineer IIIAnnapolis Junction, MDProvides specific input to the software components of system design to include hardware/software trade-offs, software reuse, use of Open Source Software (OSS) and/or Commercial OffThe-Shelf (COTS) Government Off-The-Shelf (GOTS) software in place of new development, and requirements analysis and synthesis from system level to individual software components. These systems might include, but are not limited to, processing intensive analytics, novel algorithm development, manipulation of extremely large data sets, real-time systems, business management information systems, and systems which incorporate data repositories, data transport services, and application and systems development and monitoring.
Mid-Level Software Engineer Belay TechnologiesMid-Level Software EngineerLaurel, MDFull timeAs soon as an employee enters a customer facility, they touch one of these applications which are critical to the daily functions of thousands of users across acquisition, business, finance, HR, training, recruitment, program management, security, logistics and more. Responsibilities: Serve as the primary React Software Developer responsible for maintaining and enhancing a production collaboration and business process application that supports information exchange between DoD and Industry Partners.
Product Support Engineer Cooley LLPProduct Support EngineerReston, VA$120,000–$175,000 / year4+ years directly applicable experience (e.g., application support engineer, technical support engineer, product support engineer, or quality assurance engineer) - Senior level candidates considered with 5+ years' experience with proven ability to operate at an elevated level in terms of scope of responsibility, judgement and autonomy. We offer a full range of elective benefits including medical, health savings account (with applicable medical plan), dental, vision, health and/or dependent care flexible spending accounts, pre-tax commuter benefits, life insurance, AD&D, long-term care coverage, backup care for children and/or adults and other parental support benefits.
CNO - Application Software Engineer - Python, JMS, Ruby Erias VenturesCNO - Application Software Engineer - Python, JMS, RubyAnnapolis Junction, MarylandWe are seeking engineers who wish to grow their careers and want to become part of a strong, entrepreneurial-minded, and technical company focused on bringing innovative solutions to the difficult mission problems facing our customers. Design and implement software, contribute to architectural, design, and code reviews, coordinate with organizations that manage dataflow schemas and deploy dataflow solutions into production.
Senior Cloud Platform Engineer Nightwing Intelligence SolutionsSenior Cloud Platform EngineerSterling, Virginia$99,000–$206,000 / yearUse and develop automation (Ansible roles, Terraform modules, Packer, GitLab CI/CD pipelines, AWS CLI) to provision and configure servers, services, applications, and security controls, and drive best practices for automation across the team. Responsibilities include, but are not limited to, the following: Own the architecture and design of core cloud platform capabilities in AWS GovCloud and Azure, ensuring they meet security, availability, and performance requirements across three networks.
Sr. Systems Engineer (Citrix) (TS/SCI w/ CI Poly required) A&M Technologies, Inc.Sr. Systems Engineer (Citrix) (TS/SCI w/ CI Poly required)Sterling, VASpecific skills include the following: Possess a minimum of Active TS/SCI w/ CI Poly (FS Poly works too) At a minimum, meet DoDD 8140 requirements (Security+ CE Certification) Expertise working with Linux platforms and COTS applications in Linux cloud environments 5+ years of hands-on experience with Citrix Virtual Apps and Desktops Responsibilities: Design and implement Citrix Virtual Apps and Desktops (CVAD) infrastructure in a 100% Cloud environment. Work with internal engineering resources as well as customer end-users to design and enhance the user interfaces for supported applications, maintaining responsive designs that accommodate challenging technical and functional requirements.
NewSoftware Engineer, Level 3 Independent SoftwareSoftware Engineer, Level 3Annapolis Junction, MDWorking independently or as part of an agile development team, you will develop high-quality software, resolve technical challenges, and contribute to the design and implementation of scalable, reliable, and secure solutions that support customer mission objectives. Education and Experience: Bachelor's degree in Computer Science, Computer Engineering, Software Engineering, Information Systems, or a related technical discipline from an accredited college or university.
Sr. Mobility Engineer Compass Pointe ConsultingSr. Mobility EngineerWashington, DCThe Senior mobility engineer will assist the UEM team with various tasks which include, but are not limited to: Provide technical support for all mobile device issues via our ticketing system, telephone, or email. Coordinate and assist with the installation and maintenance of mobile platforms software/hardware and mobile devices for in-house teams, remote employees, vendors, and contractors as needed.
Technical Consultant- Enterprise Data Engineer EsriTechnical Consultant- Enterprise Data EngineerVienna, VirginiaYou will work both independently and as part of project teams to configure back-end geospatial database management capabilities that support customer workflows utilizing ArcGIS web, desktop, and mobile applications. Familiarity with database design principles, data loading techniques, backup and recovery solutions, performance monitoring and tuning, database maintenance, and security.
Cloud Software Engineer II Prodigy OneCloud Software Engineer IIAnnapolis Junction, MarylandProvides specific input to the software components of system design to include hardware/software trade-offs, software reuse, use of Commercial Off-the-shelf (COTS)/Government Off-the-shelf (GOTS) in place of new development, and requirements analysis and synthesis from system level to individual software components. Provides expertise in Cloud Computing, Hadoop Eco-System including implementing Java applications, Distributed Computing, Information Retrieval (IR), and Object Oriented Design.
Full Stack Software Engineer Prodigy OneFull Stack Software EngineerAnnapolis Junction, MarylandIf you enjoy taking ideas from concept to working prototype in short, iterative cycles, and you like solving challenging problems across the stack, this role will give you the opportunity to have an outsized impact on how our organization operates. Education Requirements: Bachelor’s degree in Computer Engineering, Computer Science, Electrical Engineering, Math, or Physics is required or equivalent combination of education, training, and experience.
Cloud Software Engineer 2 Nightwing Intelligence SolutionsCloud Software Engineer 2Annapolis Junction, Maryland$122,000–$253,000 / yearProvides specific input to the software components of system design to include hardware/software trade-offs, software reuse, use of Commercial Off-the-shelf (COTS)/Government Off-the-shelf (GOTS) in place of new development, and requirements analysis and synthesis from system level to individual software components. The Level 2 Cloud Software Engineer (SWE) shall possess the following capabilities: •Provide in-depth knowledge of Information Retrieval; assisting the software development team in designing, developing and testing Cloud Information Retrieval.
Sr. System Engineer- ArcGIS EsriSr. System Engineer- ArcGISVienna, VirginiaDeploy and configure complex ArcGIS in a wide variety of environments across operation systems, cloud providers, security architectures, customer types and organizations, to meet the customer's service level agreement. Experience with Esri software including ArcGIS Enterprise, ArcGIS Desktop, ArcGIS Online, Portal for ArcGIS and ArcGIS Runtime and their associates APIs or interfaces.
System Engineer- ArcGIS EsriSystem Engineer- ArcGISVienna, VirginiaDeploy and configure ArcGIS in a wide variety of environments across operation systems, cloud providers, security architectures, customer types and organizations, to meet the customer's service level agreement. Experience with Esri software including ArcGIS Enterprise, ArcGIS Desktop, ArcGIS Online, Portal for ArcGIS and ArcGIS Runtime and their associates APIs or interfaces.
Automation Engineer CatalyxAutomation EngineerGaithersburg, MarylandThis role serves as a key interface between Automation/OT and on-site IT teams, focusing on troubleshooting equipment connectivity, supporting system integration, and ensuring reliable data flow across platforms. We proudly support our international employees by offering assistance with Critical Skills Visa applications for eligible candidates.
Full-Stack Software Engineer, Senior Technica CorporationFull-Stack Software Engineer, SeniorWashington, Washington, DC$131,000–$145,000 / yearFull timeFrom our locations across the DC Metro area, Hampton, Virginia, and Huntsville, Alabama, we provide technological subject matter expertise, program management and business process knowledge as a trusted advisor in support of our Department of Defense and other Federal Agency customers. Responsibilities: Technica Corporation is seeking a Senior Full Stack Software Engineer who will support the development of the FBI FDP system using a Postgres/Java/React technology stack.
AI Requirements Engineer EntarianAI Requirements EngineerArlington, VirginiaThis position is ideal for a candidate with experience modernizing complex IT systems, engaging with executive stakeholders, and leading cross-functional teams through full agile lifecycles from concept to production to ongoing O&M cycles. This role combines strategic visioning, business process analysis, and leadership of technical teams, ensuring delivery of secure, scalable, and user-centric solutions.
Cloud/DevOps Engineer. Nightwing Intelligence SolutionsCloud/DevOps Engineer.Sterling, Virginia$99,000–$206,000 / yearThe CDE blends technical skills in version control, cloud platforms, automation tools, containerization, and scripting utilizing skills and tools such as Python, Artefactory, GitHub, Jenkins, Cloud formation, Terraform, Docker, Kubernetes, and other future architecture requirements. The CDE works with the Platform Engineers, SREs and shared resources to deploy, operate, and maintain IaC services on an IaaS cloud service infrastructure with experience using Nutanix, AWS or Google.
Software Development Engineer II – Back-End (Mission-Focused | ArcGIS) EsriSoftware Development Engineer II – Back-End (Mission-Focused | ArcGIS)Vienna, VirginiaAs a Software Development Engineer II, you will design and develop scalable backend services and APIs that enable complex data processing, system integration, and real time analytics. Join Esri`s team and build backend systems that power mission critical geospatial applications supporting Defense and Intelligence operations.
Software Development Engineer II- Back End EsriSoftware Development Engineer II- Back EndVienna, VirginiaFrom building intuitive AI web interfaces to writing Python for geoprocessing tools and AI agents, you'll be exposed to the full development lifecycle and cutting-edge GIS solutions. In this position, you will build software leveraging Esri's products and APIs to build core backend services that solve complex problems at a global scale.
Subject Matter Expert Software Engineer w/Top Secret Clearance TekSynapSubject Matter Expert Software Engineer w/Top Secret ClearanceQuantico, VirginiaFull timeBachelor’s degree in Computer Science, Computer Engineering, Software Engineering, Electrical Engineering, Computer and Information Security, Computer Security, Computer Forensics, or other closely related degree from an accredited university or college. Serve as the Subject Matter Expert in charge of directing team’s technical efforts to design, develop, and deploy CNE tools, implants, and exploitation frameworks across desktop, server, and mobile platforms.
Cloud Software Engineer, Level 2 Avalore, LLCCloud Software Engineer, Level 2Annapolis Junction, MDThree (3) years experience in Utility Computing, Network Management, Virtualization (VMWare or VirtualBox), Cloud Computing 2. Multi Node Management and Installation: Management and installation of Cloud and Distributed Computing on multiple nodes, Python, CFEngine, Bash, Ruby or related technologies. Provides specific input to the software components of system design to include hardware/software trade-offs, software reuse, use of Commercial Off-the-shelf (COTS)/Government Off-the-shelf (GOTS) in place of new development, and requirements analysis and synthesis from system level to individual software components.
Staff Engineer - IVR Geico InsuranceStaff Engineer - IVRBethesda, MD$115,000–$230,000 / yearUtilize programming languages like Python, SQL, and NoSQL databases, Container Orchestration services including Docker and Kubernetes, and a variety of Azure tools and services. As a Staff Engineer, you will: Design, develop, and deploy large-scale distributed AI applications that power customer self-service across multiple communication channels (voice, IVR, chat).
Cloud Design Engineer, Level 2 Avalore, LLCCloud Design Engineer, Level 2Annapolis Junction, MDEight (8) years software engineering experience in programs and contracts of similar scope, type, and complexity are required; Two (2) years of which must be in programs utilizing Big-Data Cloud technologies and/or Distributed Computing. Avalore is seeking a Cloud Design Engineer, Level 2. The Cloud Design Engineer develops, maintains, and enhances complex and diverse Web-Based User Interfaces that interact with BigData Cloud systems based upon documented requirements.
Senior Network/Systems Tools Engineer (OpenText) (TS/SCI CI Poly Required) A&M Technologies, Inc.Senior Network/Systems Tools Engineer (OpenText) (TS/SCI CI Poly Required)Chantilly, VAThe job duties are as follows: System Architecture: Design, implement, and maintain the OpenText Network Operations Management (NOM) system architecture, with a specific focus on the Operations Bridge for the Transformation and Integration Cloud (OPTIC) Data Lake, ensuring a scalable, resilient, and secure platform for enterprise network management, performance monitoring, and compliance reporting. Required qualifications include the following: Must be compliant with DoD 8140 Information Assurance Technical (IAT) Level 2. Technical Knowledge: Deep expertise in container orchestration technologies like Kubernetes in Linux environments.
Senior Staff Software Engineer (Backend) - Billing Platform *Hybrid* Geico InsuranceSenior Staff Software Engineer (Backend) - Billing Platform *Hybrid*Bethesda, MD$110,000–$260,000 / yearThis platform includes a comprehensive array of components such as a core billing engine, invoicing system, commissions management, collections, payment processing, CRM integration, subscription management, credit control and dunning management, along with reporting and analytics. The Billing team at GEICO oversees the tools, infrastructure, data, reporting, analytics, and services essential for delivering seamless billing experiences to internal users, end customers, and partners.
Electrical and RF Engineer TrustPointElectrical and RF EngineerDulles, VAWith locations outside Washington DC and in Silicon Valley, TrustPoint is currently seeking a Full Time Electrical and RF Engineer to join the team and will be responsible for implementing electrical components into hardware and firmware needed for our commercial Global Navigation Satellite System (GNSS). Our system consists of a constellation of commercial satellites and a network of ground stations and as the Electrical Engineer, you will be responsible for designing, developing and implementing innovative hardware solutions at the heart of our GNSS satellite, payload, and receiver solutions.
Staff Software Engineer (Backend) - Billing Platform *Hybrid* Geico InsuranceStaff Software Engineer (Backend) - Billing Platform *Hybrid*Falls Church, VA$110,000–$230,000 / yearThis platform includes a comprehensive array of components such as a core billing engine, invoicing system, commissions management, collections, payment processing, CRM integration, subscription management, credit control and dunning management, along with reporting and analytics. The Billing Platform team at GEICO oversees the tools, infrastructure, data, reporting, analytics, and services essential for delivering seamless billing experiences to internal users, end customers, and partners.
NewFull Stack Software Engineer, Senior Technica CorpFull Stack Software Engineer, SeniorWashington, DC$131,000–$145,000 / yearFrom our locations across the DC Metro area, Hampton, Virginia, and Huntsville, Alabama, we provide technological subject matter expertise, program management and business process knowledge as a trusted advisor in support of our Department of Defense and other Federal Agency customers. Technica Corporation is seeking a Senior Full Stack Software Engineer who will support the development of the FBI FDP system using a Postgres/Java/React technology stack.
DevOps Engineer - Onsite in Annapolis Jct, MD - TS/SCI & Full Scope Polygraph Booker DiMaio, LLCDevOps Engineer - Onsite in Annapolis Jct, MD - TS/SCI & Full Scope PolygraphAnnapolis Junction, MDWe have an immediate need for a DevOps Engineer to focus on DevOps engineering of a modernization effort to converge authoring, dissemination, and other supporting tools. Installing and configuring complex software; Managing network servers and technology tools.
Identity, Credential, and Access Management (ICAM) Engineer - Cleared (Polygraph) True TandemIdentity, Credential, and Access Management (ICAM) Engineer - Cleared (Polygraph)Reston, VAEngineer, configure, and maintain Entra ID distributed architecture, ensuring high availability, automated failover, load balancing, and recovery for enterprise-wide identity services. The above salary range represents a general guideline; however, TrueTandem considers several factors when determining base salary offers such as the scope and responsibilities of the position and the candidate's experience, education, skills and current market conditions.
Software Engineer (Distributed Systems & Cloud) Visionist, Inc.Software Engineer (Distributed Systems & Cloud)Fort Meade, MD$150,000–$190,000 / yearThis premier program encompasses traditional software services including Systems Design and Engineering, Database Administration, Data Science and Knowledge Management, Enterprise Risk Management, Integration and Test, as well as Operations and Systems Support. We embed small engineering teams with analysts to rapidly identify and solve mission capability gaps playing a critical role in defending our nation's cyber infrastructure & providing expertise in malware analysis, attribution, mapping adversarial infrastructure, pen testing, and operational planning.
Cloud Software Engineer 3 Nightwing Intelligence SolutionsCloud Software Engineer 3Annapolis Junction, Maryland$122,000–$253,000 / yearProvides specific input to the software components of system design to include hardware/software trade-offs, software reuse, use of Commercial Off-the-shelf (COTS)/Government Off-the-shelf (GOTS) in place of new development, and requirements analysis and synthesis from system level to individual software components. An active TS/SCI with Poly is required The Level 3 Cloud Software Engineer (SWE) shall possess the following capabilities: Provide in-depth knowledge of Information Retrieval; assisting the software development team in designing, developing and testing Cloud Information Retrieval.
Cloud Software Engineer, Level 3 Avalore, LLCCloud Software Engineer, Level 3Annapolis Junction, MDProvides specific input to the software components of system design to include hardware/software trade-offs, software reuse, use of Commercial Off-the-shelf (COTS)/Government Off-the-shelf (GOTS) in place of new development, and requirements analysis and synthesis from system level to individual software components. Cloud and Distributed Computing Technologies: at least one or a combination of several of the following areas- YARN, J2EE, MapReduce, Zookeeper, HDFS, HBase, JMS, Concurrent Programming, MultiNode implementation/installation and other applicable technologies.
Giant Voice Associate Field Engineer NANA Regional Corporation IncGiant Voice Associate Field EngineerHerndon, VA$60,000–$65,000 / yearSupport overall sustainment and repair operations of the Army's Giant Voice and Audio-Visual Notification Systems (AVNS) including the management, operation, and maintenance of associated hardware, software, and processes. If you are an individual with a disability, or have known limitations related to pregnancy, childbirth, or related medical conditions, and would like to request a reasonable accommodation for any part of the employment process, please contact us at job-assist@akima.com or 571-353-7053 (information about job applications status is not available at this contact information).
Giant Voice Field Engineer NANA Regional Corporation IncGiant Voice Field EngineerHerndon, VA$80,000–$85,000 / yearProvide timely and expert incident management services in strict adherence to the Service Agreement Level (SLA) metrics and Key Performance Indicators set forth by the program in response to GV, AVNS, and other hardware/software issues. Support overall sustainment and repair operations of the Army's Giant Voice and Audio-Visual Notification Systems (AVNS) including the management, operation, and maintenance of associated hardware, software, and processes.
Staff Software Engineer Xometry IncStaff Software EngineerNorth Bethesda, MD$170,000–$195,000 / yearYou''ll create formal networks between our partner''s and Xometry's engineering groups to develop new ways of conducting operations-specifically regarding "ring-fenced" data governance where part files remain securely within the partner''s network infrastructure. Deep Technical Expertise: Expert-level mastery of Python, AWS infrastructure, and modern frontend frameworks (React/NextJS) used for complex enterprise applications.
DevOps Engineer (On-Call/Hybrid) - Linux/AWS/Docker/Terraform/Ansible/Git Captivation SoftwareDevOps Engineer (On-Call/Hybrid) - Linux/AWS/Docker/Terraform/Ansible/GitAnnapolis Junction, MD$130,000–$270,000 / yearResponsibilities will include: deploying applications; installing and configuring complex software; managing network servers and technology tools; monitoring and maintaining the system for required levels of performance; and troubleshooting issues and outages. A minimum of three (3) years of experience in software development/engineering, including requirements analysis, software development, installation, integration, evaluation, enhancement, maintenance, testing, or problem diagnosis/resolution.
Mid-level Quality Assurance Engineer CyberMedia TechnologiesMid-level Quality Assurance EngineerMcLean, VAHeadquartered in McLean, VA, CTEC has over 300 team members working on mission-critical systems and projects for agencies such as the Department of Homeland Security, Internal Revenue Service, and the Office of Personnel Management. CTEC develops and delivers innovative customer-centric technologies and solutions that support the Office of Personnel Management's (OPM) Health and Insurance business unit and Office of the Chief Information Officer (OCIO).
Senior VHDL Digital Communications Engineer TrustPointSenior VHDL Digital Communications EngineerDulles, VAThe improvements will support US Government position and timing service resiliency as well as enable next-generation commercial applications like drone delivery, self-driving cars, urban air mobility, and augmented reality. You will work on everything from high-speed analog/digital circuits to advanced VHDL implementations for space and ground systems, helping to build our constellation of satellites and next-gen receiver technologies.
Senior Engineer, Interactive Voice Response - Ai/Ml Geico InsuranceSenior Engineer, Interactive Voice Response - Ai/MlBethesda, MD$100,000–$215,000 / yearAs a Senior Engineer, you will: Design, develop, and deploy large-scale distributed AI applications that power customer self-service across multiple communication channels (voice, IVR, chat). Utilize programming languages like Python, SQL, and NoSQL databases, Container Orchestration services including Docker and Kubernetes, and a variety of Azure tools and services.
DevSecOps Engineer Integral Consulting Services IncDevSecOps EngineerWashington, DCThe DevSecOps Engineer serves as the lead technical engineer responsible for the automation, continuous integration/continuous deployment (CI/CD), and security posture of the cloud infrastructure for the Office of Naval Research (ONR) Comptroller's Office Data and Analytics (D&A) Division architecture. Automate infrastructure and workflows using Infrastructure as Code (IaC) tools (e.g., Terraform, Ansible), build and manage CI/CD pipelines for secure software deployment, and develop streaming data pipelines (e.g., using Apache Kafka or AWS Kinesis) for real-time data processing.
Network and Voice Engineer - Top Secret Clearance - Hybrid Remote & Springfield,Virginia Tetra Tech IncNetwork and Voice Engineer - Top Secret Clearance - Hybrid Remote & Springfield,VirginiaSpringfield, VARemoteHave in-depth knowledge of Cisco's Unified Communication Product line such as Unified Communications Product line such as Unified Communications Manager, Unity Connection and collaboration applications, feature and services (e.g. Our reputation rests on the technical expertise and dedication of our employees-25,000 people working together across disciplines and time zones to provide smart, sustainable solutions for challenging projects.
Senior Addepar Data Engineer / Analyst Brown Advisory IncSenior Addepar Data Engineer / AnalystBaltimore, MD$132.50–$172.50 / hourAnalyze, troubleshoot, and resolve complex data issues involving accounts, entities, ownership structures, portfolios, holdings, transactions, securities, classifications, attributes, benchmarks, performance, and reporting outputs. Strong understanding of the Addepar data model, including accounts, entities, ownership structures, portfolios, holdings, transactions, securities, classifications, attributes, benchmarks, performance, and reporting views.
SAP NS2 Sr Cloud Engineer/Systems Administrator - Onsite - Active TS SCI with Poly Chantilly VA SAP SESAP NS2 Sr Cloud Engineer/Systems Administrator - Onsite - Active TS SCI with Poly Chantilly VAHerndon, VACandidate should be hands-on and has the necessary knowledge of cloud-based systems and associated security principals to effectively work with minimal supervision in a cloud environment, understanding the complexities that come with cloud, and can effectively communicate cloud design/architecture ideas to technical as well as non-technical client stakeholders. Originally known for leadership in enterprise resource planning (ERP) software, SAP has evolved to become a market leader in end-to-end business application software and related services for database, analytics, intelligent technologies, and experience management.
Chief Engineer Lead Architect Integral Consulting Services IncChief Engineer Lead ArchitectFort Meade, MD$175,000–$195,000 / yearDemonstrated ability to communicate complex technical architectures, DevSecOps workflows, and data integration strategies to government stakeholders, senior leadership, and cross-functional engineering teams. This role is responsible for enterprise architecture, DevSecOps alignment, multi-enclave deployment strategy, database synchronization, and secure integration with external DoD systems across SIPR environments.
NewLead Commercial Building Engineer Building Maintenance Systems Inc (BMSI)Lead Commercial Building EngineerTysons Corner, VA$35–$38 / hourFull timeDaily duties will include working with the property management team to perform preventive maintenance, respond to service tickets, and provide a safe environment for building tenants and visitors. Basic technology skills necessary to manage work order applications on mobile phone and learn to operate Building Automation Systems.
Chief Engineer Building Maintenance Systems Inc (BMSI)Chief EngineerWashington, DCFull timeMonitors operations and maintains refrigeration, water cooling and air conditioning equipment, boilers, heating, ventilating and hot water equipment, pumps, valves, piping and filters, other mechanical and electrical equipment, changing light bulbs and ballasts. They will also maintain heating, lighting, ventilating, air conditioning, power refrigeration, building electrical and controls, water treatment, and other mechanical and electrical equipment.