Govcio LLCNewSenior Information Systems Security Engineer Govcio LLCSenior Information Systems Security EngineerAlexandria, VA$135,000–$165,000Overview: GovCIO is currently hiring for a Senior Information Systems Security Engineer to support cybersecurity, compliance, and risk management activities supporting the U.S. Coast Guard (USCG). Responsibilities: As a Senior Information Systems Security Engineer, you will serve as a senior technical contributor for the cybersecurity posture, compliance framework, and risk management initiatives.
RightDirection Technology SolutionsNewAWS Cloud Security Engineer - Cleared RightDirection Technology SolutionsAWS Cloud Security Engineer - ClearedWashington, DCDescription:RDTS is seeking a skilled AWS Security Engineer to design, implement, and maintain secure cloud architectures within AWS. This role is responsible for strengthening cloud security posture, implementing preventative and detective controls, and ensuring compliance with organizational and regulatory requirements.
System OneCyber Security Engineer III System OneCyber Security Engineer IIISpringfield, VA$135,000–$135,000 / hourThe ideal candidate will have hands on experience in incident response, CSOC or SOC operations, digital forensics, malware analysis, indicator development, and cyber incident reporting within a DoD, Intelligence Community, or federal cyber environment. • Experience supporting cyber incident response, CIRT, CSOC, SOC, DFIR, threat hunting, or defensive cyber operations.
System OneData Security Engineer System OneData Security EngineerVienna, VAProvide technical guidance and collaboration with other Cyber Security Engineers supporting technologies within designated area of focus (Data Scanning). Establish and maintain supporting documentation (architecture/data flow diagrams, runbooks, ServiceNow tickets, user stories and tasks).
System OneNewSenior Network Engineer (CCIE) – Security System OneSenior Network Engineer (CCIE) – SecurityAlexandria, VA$230,000–$270,000 / yearThe ideal candidate will bring deep hands-on experience designing, securing, optimizing, and troubleshooting complex network environments while also serving as a technical leader and trusted advisor to government stakeholders. The Senior Network Engineer / Security SME will provide expert-level network engineering, security architecture, and operational support across enterprise and tactical networks.
JobotNewJunior Software Systems Integration Engineer - RHEL - Secret Clearance Required JobotJunior Software Systems Integration Engineer - RHEL - Secret Clearance RequiredManassas, VA$90,000–$115,000 / yearInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. Integrating and testing software deliveries, verifying bug fixes, and performing regression testing across multiple hardware and operating system configurations.
JobotNewTest Engineer (AN/BYG-1) JobotTest Engineer (AN/BYG-1)Manassas, VA$85,000–$95,000 / yearInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. We are a leading provider of information technology, logistics management, business process re-engineering, financial management, and administrative support services for the Department of the Navy and Homeland Security.
JobotNewSoftware/Systems Integration Engineer (Secret Clearance Required) JobotSoftware/Systems Integration Engineer (Secret Clearance Required)Manassas, VA$95,000–$115,000 / yearInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. We are seeking a proactive Junior Systems/Software Integration Engineer to assist with the deployment, configuration, and validation of complex software solutions across multiple computing environments.
JobotNewSenior RMF Cybersecurity Engineer (Navy) JobotSenior RMF Cybersecurity Engineer (Navy)Manassas, VA$120,000–$150,000 / yearInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. Our team specializes in securing critical systems through authorization management, risk mitigation strategies, vulnerability assessment processes, and cybersecurity engineering practices designed to support evolving compliance and operational requirements.
JobotNewSystem Integration & Test Engineer JobotSystem Integration & Test EngineerHerndon, VA$110,000–$165,000 / yearWith deep expertise in cloud-first architectures, automation, DevSecOps, virtualization, reliability engineering, and large-scale systems integration, we help organizations modernize infrastructure, improve operational efficiency, and support mission-critical environments where performance, security, and resiliency are essential. Our teams partner closely with customers to deliver innovative solutions across cloud strategy, cybersecurity, systems integration, data engineering, machine learning, AI, disaster recovery, and enterprise infrastructure initiatives.
JobotNewSenior Software Engineer (C++ / Java) JobotSenior Software Engineer (C++ / Java)MONTGOMRY VLG, MD$165,000–$185,000 / yearWith deep expertise in cloud-first architectures, automation, DevSecOps, virtualization, reliability engineering, and large-scale systems integration, we help organizations modernize infrastructure, improve operational efficiency, and support mission-critical environments where performance, security, and resiliency are essential. This role is ideal for a seasoned engineer who enjoys solving complex technical challenges, contributing to system architecture, and partnering closely with Systems Engineering, Development, and Test teams to deliver robust, scalable solutions.
JobotNewHardware Engineer JobotHardware EngineerMONTGOMRY VLG, MD$120,000–$140,000 / yearWith deep expertise in cloud-first architectures, automation, DevSecOps, virtualization, reliability engineering, and large-scale systems integration, we help organizations modernize infrastructure, improve operational efficiency, and support mission-critical environments where performance, security, and resiliency are essential. Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal.
JobotNewSenior PowerShell Engineer (Secret Clearance) JobotSenior PowerShell Engineer (Secret Clearance)West McLean, VA$120,000–$160,000 / yearInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. This role will focus on building automation solutions within Windows 11 environments to improve operational efficiency, strengthen security posture, and enhance the overall end-user experience.
JobotNewSystem Safety Engineer JobotSystem Safety EngineerHerndon, VA$150,000–$200,000 / yearWith deep expertise in cloud-first architectures, automation, DevSecOps, virtualization, reliability engineering, and large-scale systems integration, we help organizations modernize infrastructure, improve operational efficiency, and support mission-critical environments where performance, security, and resiliency are essential. We work closely with stakeholders at every level of the organization—from executive leadership to engineering and operations teams—to provide scalable, resilient, and secure technology solutions that solve complex business and operational challenges.
JobotNewSr. Software Engineer JobotSr. Software EngineerGaithersburg, MD$140,000–$165,000 / yearWith deep expertise in cloud-first architectures, automation, DevSecOps, virtualization, reliability engineering, and large-scale systems integration, we help organizations modernize infrastructure, improve operational efficiency, and support mission-critical environments where performance, security, and resiliency are essential. Our teams partner closely with customers to deliver innovative solutions across cloud strategy, cybersecurity, systems integration, data engineering, machine learning, AI, disaster recovery, and enterprise infrastructure initiatives.
JobotNewJunior Linux Systems Engineer (RHEL/Clearance) JobotJunior Linux Systems Engineer (RHEL/Clearance)Manassas, VA$80,000–$100,000 / yearInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. Integrating and testing software deliveries, verifying bug fixes, and performing regression testing across multiple hardware and operating system configurations.
JobotNewRCDD Technology Engineer JobotRCDD Technology EngineerWashington, DC$140,000–$190,000 / yearInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. This role serves as a trusted advisor to clients, leading technology consulting efforts while supporting business development, proposal preparation, project execution, and team mentorship.
Amazon Data Services, Inc.NewData Center Controls Engineer Amazon Data Services, Inc.Data Center Controls EngineerAlexandria, VAAWS Data Centers have multiple components such as generators, uninterruptable power sources, diesel generators, electrical switchgear, power distribution units, variable frequency drives, automatic/static transfer switches, chillers [air-cooled and water-cooled], pumps, cooling towers, heat exchangers, CRAHs, air economizers, etc. - Frequently visit (locally) assigned in-operation data centers to troubleshoot, meet customers, supervise vendor’s work to ensure compliance with the scope, design, SOO and applicable local codes.
MANTECHNewProgram Security Analyst MANTECHProgram Security AnalystQuantico, VASupport the MCSC Acquisition Program Security Lead (APSL) to ensure that all technology protection document development, updating, and staffing are accomplished as depicted in the Program’s Integrated Master Schedule (IMS) and as described in the Department of Defense Technology and Program Protection Guidebook and the MCSC Acquisition Security Guidebook. Develop and update Program Protection Plans (PPP) as required by DoD Instruction 5000.83 and described in PDUSD Memorandum, “Document Streamlining – Program Protection Plan (PPP),” July 16, 2011 and the MCSC Acquisition Guidebook.
Amazon Data Services, Inc.NewConstruction Cost Engineer, AMER Cost Control Amazon Data Services, Inc.Construction Cost Engineer, AMER Cost ControlHerndon, VAThe AWS AMER Cost Control team is seeking a passionate and motivated construction cost engineer to support a portfolio of Data Center Construction projects in North and South America. We pioneered cloud computing and never stopped innovating — that’s why customers from the most successful startups to Global 500 companies trust our robust suite of products and services to power their businesses.
Amazon Data Services, Inc.NewHV Substation Commissioning Engineer, Amazon Commissioning Team Amazon Data Services, Inc.HV Substation Commissioning Engineer, Amazon Commissioning TeamHerndon, VAHigh technical competency in electrical systems and understanding the design concept and intent by reviewing electrical design documentation, including drawings, specifications, pre-functional checklist, startup and functional test scripts, maintainability, construct-ability and commission-ability. AWS is seeking a High Voltage Commissioning Engineer to become part of a AMER’s Amazon Commissioning (ACx) team, responsible for the commissioning and continuous innovation of the Medium Voltage and High Voltage infrastructure associated with our rapidly expanding data center foot print.
Govcio LLCNewSME Cloud Engineer Govcio LLCSME Cloud EngineerAlexandria, VA$170,000–$218,000Certifications: Professional-level cloud engineering certifications (e.g., AWS Certified Solutions Architect Professional, AWS Certified Security Specialty, Microsoft Certified: Azure Solutions Architect Expert, or Azure Security Engineer Associate), alongside baseline enterprise IT certifications (e.g., CASP+ CE, CISSP, or equivalent technical baselines). Responsibilities: As a SME Cloud Engineer, the ideal candidate will specialize in the integration and automation of enterprise management tools, with a strong focus on connecting Microsoft Sentinel, Swimlane, ACAS, and Tanium to create a cohesive and automated infrastructure posture across our hybrid environment.
L3Harris TechnologiesNewLead, Software Engineer L3Harris TechnologiesLead, Software EngineerHerndon, VAIn addition to technical contributions, this position conducts the day‑to‑day software lead activities by providing technical guidance, assigning tasks, reviewing and approving formal documentation, and estimating labor, tools, and other resources to meet budget and schedule commitments. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.
LeidosNewSenior Communications Security (COMSEC) Engineer LeidosSenior Communications Security (COMSEC) EngineerFort Belvoir, VA$92,300–$166,850The I3TS program provides enterprise-wide IT support to enable DTRA’s Information Management & Technology Directorate (ITD) to consolidate, modernize, and continuously innovate the delivery of IT services and mission capabilities to DTRA’s internal and external mission partners operating in CONUS and OCONUS locations . Experience in network and network security design where under general direction, manages the design, installation and support of LAN/WAN based networks and security components such as routers, switches and firewalls, and datacenter equipment .
L3Harris TechnologiesNewSpecialist, EO/IR Systems Engineer (Top Secret Clearance) L3Harris TechnologiesSpecialist, EO/IR Systems Engineer (Top Secret Clearance)Herndon, VA$92,500–$171,500 / yearWith customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security. The candidate will need to work independently to resolve a wide range of engineering problems, requiring collaboration with all required disciplines (mechanical, optical, electrical, software, etc.).
Company ConfidentialNetwork Engineer II Company ConfidentialNetwork Engineer IIReston, VAFull timeProvide assistance and oversight for all information systems operations activities, including computer and telecommunications/communications operations, data entry, data control, LAN/MAN/WAN administration and operations support, operating systems programming, system security policy procedures, and/or web strategy and operations. Perform a variety of systems engineering tasks and activities that are broad in nature and are concerned with major systems design, integration, and implementation, including, hardware, software, budgetary, and support facilities and/or equipment.
ECLARONewHybrid Cloud Engineer ECLAROHybrid Cloud EngineerWashington DC, DCCloud Operations & Reliability: Experience designing highly available systems using Azure-native tools for monitoring, backup, disaster recovery, and cost optimization. Virtualization & Core Infrastructure: Deep expertise in VMware (vSphere, ESXi, NSX, vCenter, SRM) and enterprise compute, storage, networking, and Active Directory.
Amazon Data Services, Inc.NewCommissioning Engineer Amazon Data Services, Inc.Commissioning EngineerHerndon, VAThe CxE is responsible for supporting vendors, contractors, and other teams involved in the construction and commissioning of various systems including medium and low voltage power systems, Generators, UPS, HVAC, Chilled Water, BMS, and EPMS systems. The responsibilities of the ACx Commissioning Engineer (CxE) include, but are not limited to, oversight and coordination of multi-discipline division of work related to design review and commissioning of Amazon critical infrastructure for new construction and special projects.
LeidosNewSenior Software Engineer LeidosSenior Software EngineerArlington, VA$107,900–$195,050If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.
RightDirection Technology SolutionsNewAWS Cloud ETL Engineer - Cleared RightDirection Technology SolutionsAWS Cloud ETL Engineer - ClearedWashington, DCKey Responsibilities: Design, develop, and maintain ETL/ELT pipelines using AWS services such as AWS Glue, Lambda, Step Functions, and EMR. Description:RDTS is seeking an experienced AWS ETL Engineer to design, build, and maintain scalable data pipelines in a cloud-native environment.
Vaco LLCNewSenior Python Full Stack Engineer Vaco LLCSenior Python Full Stack EngineerMcLean, VA$130,000–$150,000Determining compensation for this role (and others) at Vaco by Highspring depends upon a wide array of factors including but not limited to: the individual’s skill sets, experience and training; licensure and certification requirements; office location and other geographic considerations; other business and organizational needs. Vaco by Highspring values a diverse workplace and strongly encourages women, people of color, LGBTQ+ individuals, people with disabilities, members of ethnic minorities, foreign-born residents, and veterans to apply.
JobotNewSenior QA Lead / Senior QA Analyst JobotSenior QA Lead / Senior QA AnalystGaithersburg, MDRemote$135,000–$150,000 / yearWith deep expertise in cloud-first architectures, automation, DevSecOps, virtualization, reliability engineering, and large-scale systems integration, we help organizations modernize infrastructure, improve operational efficiency, and support mission-critical environments where performance, security, and resiliency are essential. We work closely with stakeholders at every level of the organization—from executive leadership to engineering and operations teams—to provide scalable, resilient, and secure technology solutions that solve complex business and operational challenges.
System OneTelecommunications Design Engineer System OneTelecommunications Design EngineerAlexandria, VA$160,000–$175,000 / yearWe are seeking a Senior Telecommunications Design Engineer to support a secure federal communications environment responsible for maintaining and modernizing mission critical telecommunications and data center infrastructure. The engineer will develop engineering documentation and infrastructure designs supporting secure voice, data, and communications systems within a high availability environment.
System OneNetwork Engineer System OneNetwork EngineerHerndon, VAWork with the customer’s security & network teams to build confidence across the business units impacted by the change to Palo Alto Networks. Minimum 5 years’ experience with network/security solutions and technologies (BGP, SD-WAN, VXLAN, routing and switching).
System OneSenior IT DevSecOps Engineer (onsite) System OneSenior IT DevSecOps Engineer (onsite)Washington, DCThey will be responsible for designing, implementing, and maintaining secure, scalable, and efficient cloud infrastructure for multiple environments (e.g., development, testing, staging, production) of the new application. The DevSecOps Engineer will be instrumental in establishing best practices for cloud-native application development, enhancing our security posture, and enabling agile and efficient operations.
System OneSr. MS Systems and Azure Cloud Engineer (hybrid) System OneSr. MS Systems and Azure Cloud Engineer (hybrid)Washington, DC$115,000–$130,000 / yearSystem One IT has a direct hire opening for a Senior Systems and Azure Cloud Engineer to be responsible for the design, implementation, maintenance, and optimization of the organization’s IT infrastructure, including servers, storage, networking, virtualization platforms, and cloud services. Background/Skills/Abilities Preferred:Bachelor’s degree in Information Technology, Computer Science, Engineering, or related field preferred; equivalent experience and relevant certifications will be considered instead of a degree.
JobotNewEntry Level Software Integrator | Clearance | Linux/Windows JobotEntry Level Software Integrator | Clearance | Linux/WindowsManassas, VA$80,000–$115,000 / yearInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. Integrating and testing software deliveries, verifying bug fixes, and performing regression testing across multiple hardware and operating system configurations.
System OneLead Systems Engineer - AWS Cloud System OneLead Systems Engineer - AWS CloudReston, VA$96.21–$99 / hourMentor junior and senior team members, install, tune, upgrade, troubleshoot, and maintain all relevant computer systems including OS administration, user management, and networking. Implement risk and opportunity management plans, assess risks, develop mitigation and disaster recovery plans, and oversee engineering project planning and execution.
System OneNewSenior Kubernetes Engineer (TS/SCI) System OneSenior Kubernetes Engineer (TS/SCI)Washington, DC$200,000–$220,000 / yearThis role is ideal for a senior engineer who thrives in complex Kubernetes environments, with the ability to design, operate, and optimize large-scale container platforms while supporting modern application architectures. We are seeking a highly experienced Senior Kubernetes Engineer / Platform Administrator to lead the design, deployment, and sustainment of containerized application platforms.
System OneNewSenior Network Engineer (CCIE) – Wireless SME System OneSenior Network Engineer (CCIE) – Wireless SMEAlexandria, VA$170,000–$240,000 / yearThe Senior Network Engineer, Wireless SME provides expert-level engineering, architecture, and operational support across enterprise and tactical networks, with specialized responsibility for secure, enterprise-grade wireless infrastructure. Deep expertise with enterprise wireless networking, RF design, wireless LAN controllers, access point deployments, and Wi-Fi troubleshooting.
System OneNewSenior Network Engineer CCNP System OneSenior Network Engineer CCNPAlexandria, VA$180,000–$210,000 / hourProvide executive-level government agency support related to designing, deploying, and ensuring efficient and optimal operation of business-critical enterprise and network environments. Translate stakeholder and Government requirements into network solutions, modifications, and support upgrades (network reconfiguration, hardware and software acquisitions, installation, and testing).
LeidosNewMid-Level UI/UX Engineer LeidosMid-Level UI/UX EngineerGaithersburg, MD$87,100–$157,450Leidos Intelligence Sector combines technology-enabled services and mission software capabilities in the areas of cyber, logistics, security operations, and decision analytics to support our defense and intel customers’ mission to defend against evolving threats around the world. As a UI/UX Engineer supporting a premier Intelligence Community customer, you’ll turn complex challenges into elegant solutions, working alongside innovative teams to deliver capabilities that strengthen national security.
System OneNOC Network Engineer System OneNOC Network EngineerFairfax, VARequirements Possession of an associate's degree in computer science, electrical engineering, electronics, or a related field; plus four years' network and/or telecommunications experience; or a bachelor's degree in such fields; plus two years' experience in network or telecommunications system design, analysis, installation, and troubleshooting. Diagnose and resolve complex network issues related to routers, switches, firewalls, load balancers, WAN accelerators, wireless devices, and other network devices.
System OneNewPhysical Access Engineer System OnePhysical Access EngineerWashington, DC$165,000–$165,000 / hourThis role focuses on integrating PACS with credentialing systems (PIV/CAC), supporting PKI-based validation, and maintaining secure access control infrastructure. We are supporting a federal program seeking a Physical Access Control (PACS) Integration Engineer to support enterprise access control systems and identity-based security environments.
System OneSenior Help Desk Engineer System OneSenior Help Desk EngineerBethesda, MD$80,000–$95,000 / yearSystem One, and its subsidiaries including Joulé, ALTA IT Services, and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. Requirements Minimum of 5+ years of IT support experience, including at least 2 years in a supervisory or lead role .
JobotNewSr Electrical PE JobotSr Electrical PEHerndon, VA$125,000–$175,000 / yearTypical duties include writing technical reports, conducting surveys, performing calculations, overseeing, and completing power, telemetry, and telecommunications designs, conducting research and development, systems integration, testing, hands-on assembly, and PLC programming. Seeking a Sr Electrical Engineer to serve as the electrical discipline team leader for the project, directing other engineers and designers as required, provide electrical design expertise and leadership for the entire project, from initial survey through final inspection.
MANTECHLinux Engineer MANTECHLinux EngineerQuantico, VABachelor’s degree and minimum of 4 years of experience working with Red Hat Enterprise Linux 7.X, 8.X, 9.X with a strong command-line interface (CLI) skillset (additional 2 years of experience may be substituted in lieu of degree). The Linux Engineer will maintain, update, and secure existing Linux systems on both classified and unclassified networks in support of Cyber investigations and operations.
*US AMR-Jones Lang LaSalle Americas, Inc.NewLead Operating Engineer *US AMR-Jones Lang LaSalle Americas, Inc.Lead Operating EngineerMcLean, VAWhether you’ve got deep experience in commercial real estate, skilled trades or technology, or you’re looking to apply your relevant experience to a new industry, join our team as we help shape a brighter way forward. • Demonstrated knowledge of safe operation of ladders, lifts, basic hand tools, volt meter, manual drain auger, plumber's helper, safety goggles, ear protection, and fire extinguisher.
LeidosData Storage Engineer LeidosData Storage EngineerBethesda, MD$107,900–$195,050If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com. Extensive experience administering enterprise-level data storage systems (Dell Storage Center, Dell Compellent, and Data Domain preferred) with a demonstrated understanding of the following services and technologies.
System OneNewSenior Software Engineer System OneSenior Software EngineerAshburn, VADesign and implement backend services, APIs, and microservices, including RESTful and GraphQL APIs, utilizing modern development frameworks and cloud-native patterns . Proficiency in backend technologies including GraphQL, REST APIs, Microservices, Node.js, Java, Python, SQL and NoSQL databases .