AI Developer SteampunkAI DeveloperMcLean, Virginia$140,000–$190,000 / yearThe Senior AI Developer will work across the full stack of AI development, from data ingestion and model experimentation to application integration, orchestration, and deployment, and will collaborate closely with product teams, LLMOps engineers, designers, and mission stakeholders. Contributions: Develop end-to-end AI solutions including LLM-powered applications, predictive ML models, multi-agent workflows, RAG pipelines, and specialized AI microservices.
Medallia Administrator & Developer SteampunkMedallia Administrator & DeveloperMcLean, Virginia$120,000–$160,000 / yearYou will work closely with business stakeholders and customer experience strategists to implement feedback programs, develop reporting solutions, maintain integrations, and ensure the platform delivers reliable and actionable customer experience data. Overview: As a SteampunkMedallia Administrator & Developer , you will serve as the primary technical resource responsible for the administration, configuration, enhancement, and support of the Medallia platform.
Salesforce Application Developer SteampunkSalesforce Application DeveloperMcLean, Virginia$85,000–$160,000 / yearDevelop, test, document and maintain solutions, integrations, and data migration elements of a Salesforce implementation using Salesforce declarative or programmatic development resources such as triggers, workflows, validations, approvals, Apex classes, Visualforce pages and Lightning components. Excellent interpersonal skills, as well as excellent communication skills, verbal and written to both technical and non-technical audiences that are in a geographically dispersed environment (conference calls, Skype, face-to-face) .
NewWeb Developer, TS/SCI with Polygraph GD Information TechnologyWeb Developer, TS/SCI with PolygraphMcLean, VirginiaTo ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. Education: Bachelor’s degree in Computer Science, Engineering, or a related technical discipline, or the equivalent combination of education, technical certifications or training, or work experience.
SharePoint Developer - TS/SCI with Polygraph GD Information TechnologySharePoint Developer - TS/SCI with PolygraphMcLean, VirginiaTo ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. Education: Bachelor’s degree in Computer Science, Engineering, or a related technical discipline, or the equivalent combination of education, technical certifications or training, or work experience.
NewCloud Architect / Developer SME GD Information TechnologyCloud Architect / Developer SMEWashingtonTo ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave.
Mulesoft Developer SteampunkMulesoft DeveloperMcLean, Virginia$85,000–$170,000 / yearOverview: As a Mulesoft Developer, you will work with our growing DevSecOps practice developing APIs and integration capabilities using the Mulesoft platform to connect data, services, and systems to help our customers achieve their mission. About steampunk : Steampunk relies on several factors to determine salary, including but not limited to geographic location, contractual requirements, education, knowledge, skills, competencies, and experience.
Senior AI Developer SteampunkSenior AI DeveloperMcLean, Virginia$140,000–$190,000 / yearThe Senior AI Developer will work across the full stack of AI development, from data ingestion and model experimentation to application integration, orchestration, and deployment, and will collaborate closely with product teams, LLMOps engineers, designers, and mission stakeholders. Contributions: Develop end-to-end AI solutions including LLM-powered applications, predictive ML models, multi-agent workflows, RAG pipelines, and specialized AI microservices.
SQL Database Developer - CBP public trust or Top Secret required GD Information TechnologySQL Database Developer - CBP public trust or Top Secret requiredAshburn, VirginiaThe Database Developer will work with a team of database developers and database administrators to support an active program of application development - creating new structures, updating existing ones and managing data within large, complex databases. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available.
NewPower Platform Developer Clearance Required Logistics Management InstitutePower Platform Developer Clearance RequiredArlington, VA$100,000–$170,000 / yearA successful Power Platform Developer will be experienced with five (5) or more years of using SharePoint and Power Platform (Power BI, Power Apps, Power Pages, Power Automate) software for automation, documentation, and reporting. A successful SharePoint Developer will be detail oriented, possess the management skills to hold people accountable to quality expectations and timelines, and respond quickly to evolving client needs.
NewGen AI CCAS Application Developer System OneGen AI CCAS Application DeveloperGaithersburg, MD$56.23 / hourBachelor’s degree in Computer Science, Engineering, or related field and 2–4 years of relevant experience; or a Master’s with 2+ years of software development experience including Python and AWS Lambda troubleshooting. Write AWS Lambda (Python) functions to orchestrate Bedrock LLM calls, embeddings workflows, and model invocation logging.
ServiceNow Developer [Remote] Via Logic LLCServiceNow Developer [Remote]Alexandria, VARemote$90,000–$115,000 / yearpointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]"> About Via Logic. In this role, you'll support the design, development, and implementation of solutions across the ServiceNow platform, including custom and scoped applications, integrations, workflow automation, Service Catalog capabilities, and locally developed applications.
Senior Cloud DevSecOPs Developer 5424 SMXSenior Cloud DevSecOPs Developer 5424Fort Washington, MD$105,100–$175,000 / yearThe position designs, creates, and implements systems software and infrastructure components; builds and maintains automated CI/CD pipelines using common automation, build, and deployment tools; and embeds security controls into build, test, and deployment workflows. The SMX salary determination process takes into account a number of factors, including but not limited to, geographic location, Federal Government contract labor categories, relevant prior work experience, specific skills, education and certifications.
PeopleSoft Developer - Multiple Positions Spatial Front IncPeopleSoft Developer - Multiple PositionsArlington, VAThe successful candidate will be a self-sufficient developer capable of designing, building, troubleshooting, and documenting complex technical solutions, while collaborating effectively with functional teams, testers, leads, and fellow developers in a SAFe/Scaled Agile environment. The ideal candidate will bring strong, hands-on development experience across the PeopleSoft HCM technology stack, including PeopleTools, Application Designer, PeopleCode, Application Engine, Component Interface, SQR, BI Publisher/XML Publisher, Integration Broker, Process Scheduler, and SQL.
Software Developer (TS/SCI CI Poly) (5303) (Chantilly, VA; Herndon, VA; Aurora, CO) SMXSoftware Developer (TS/SCI CI Poly) (5303) (Chantilly, VA; Herndon, VA; Aurora, CO)Chantilly, VA$110,800–$184,700 / yearThe SMX salary determination process takes into account a number of factors, including but not limited to, geographic location, Federal Government contract labor categories, relevant prior work experience, specific skills, education and certifications. Our delivery model and unique approaches harness our deep technical and domain knowledge, providing forward-looking insights and practical solutions to power secure mission acceleration.
Salesforce Developer DS TechnologiesSalesforce DeveloperReston, VirginiaSomos un empleador con igualdad de oportunidades y todos los candidatos calificados recibirán consideración por el empleo sin distinción de raza, color, religión, sexo, origen nacional, estado de discapacidad, estado de veterano protegido o cualquier otra característica protegida por la ley. Developer IV performs high complexity (i.e. system level applications) analysis, design, development and unit testing of software applications from user requirements and design documents.
NewSenior Backend Java Developer AHU Technologies IncSenior Backend Java DeveloperWashington, DCFull timeclient will be modernizing the District of Columbia Department of Motor Vehicles Enterprise Application Destiny project to leverage new digital technologies such as cloud computing, data analytics, artificial intelligence and mobile that are required to create modern experience for customers and partners of DC DMV. Short Description : The Senior JAVA Developer position requires in-depth knowledge of JAVA and J2EE background using Spring Technologies framework, design, and architectural styles /API’s (REST/RPC) and Agile methodologies for the development of application programs.
NewDirector/Managing Director Solution StreetDirector/Managing DirectorHerndon, VA$175,000–$220,000 / yearThis leader will oversee enterprise-scale client engagements, drive business development locally in the Mid-Market and Enterprise space, and ensure the delivery of innovative, high-quality software solutions that meet complex business needs. Please visit www.solutionstreet.com or check out our Facebook page https://www.facebook.com/solutionstreet for more information regarding our company culture, the charities we support, and the fun events we do together!
Sr. Account Executive, Greenfield, Greenfield ENT Amazon.com IncSr. Account Executive, Greenfield, Greenfield ENTArlington, VADrive digital transformation through meaningful engagement with C-level executives, IT leaders, architects, developers, and various lines of businesses of your customers. With AWS, our customers benefit from the fastest pace of innovation, the broadest and deepest functionality, the most secure computing environment, and the most proven operational expertise.
DevSecOps Engineer Bart & Associates IncDevSecOps EngineerAshburn, VAThe ideal candidate excels in DevSecOps automation, is proficient in GitLab, Jira/Confluence, GitLab CI pipelines, Kubernetes, Harness, ArgoCD, Docker, Dynatrace/AppDynamics, Elasticsearch/Kibana, Splunk, Prometheus/Grafana and is committed to securing and streamlining software delivery and infrastructure. Proficiency in managing AWS services like EC2, ECS, ECR, EKS, NLB, ALB, RDS, S3, Kafka, Cloud monitoring services, VPC and other network layers.
WWPS Greenfield Account Executive, Worldwide Public Sector Greenfield Sales Amazon.com IncWWPS Greenfield Account Executive, Worldwide Public Sector Greenfield SalesArlington, VAAs a Greenfield Account Executive within Amazon Web Services (AWS) Worldwide Public Sector (WWPS), you will build AWS adoption in net-new public sector accounts with limited or no existing AWS presence. This role requires building a sales function from the ground up, demanding creative problem-solving, tenacity, and the ability to develop novel approaches for reaching and engaging prospective customers.
Technical Program Manager III, Region Services / AWS Modular Data Center Amazon.com IncTechnical Program Manager III, Region Services / AWS Modular Data CenterArlington, VAIn this role, you will own the planning and execution of high-visibility deployments that directly enable customer missions, managing cross-team and cross-org development and delivery, participating in architecture decisions, design reviews, and represent our service to Senior and Executive leadership. You will work with software developers and networking engineers along with product managers and other organizations to deliver new services and new features create the best in class solutions for our customers worldwide!
Legal Program Manager, Cloud Google LLCLegal Program Manager, CloudReston, VAYou are equally comfortable explaining organizational metrics and scaling strategies to team members as you are discussing workflow automation needs with systems architects and tech enablement teams. In addition to initiating new projects and scaling opportunities, you will support established work streams such as regulatory compliance management, product launch legal operational support, and client knowledge distillation.
Senior Counsel, Technical Infrastructure Google LLCSenior Counsel, Technical InfrastructureReston, VAReview, draft, and negotiate a range of highly complex, high-impact commercial agreements supporting Google's technical infrastructure procurement and operation, including data center development, energy and water procurement, renewable energy transactions, colocation, dark fiber, and global submarine cable projects. This includes major projects and agreements involving data center acquisitions and operations, gigawatt-scale energy procurement, utility-scale renewable energy projects, colocation, dark fiber networks, and global submarine cable systems.
Principal Account Executive, Federal Financials Amazon.com IncPrincipal Account Executive, Federal FinancialsArlington, VAAs an account executive within Amazon Web Services (AWS), focusing on the Federal Financials Business within the US Worldwide Public Sector Market, you will have the exciting opportunity to help shape and deliver on a strategy to build mind share and broad use of Amazon"s broad portfolio of cloud services (compute, storage, database, analytics, machine learning, and generative AI). Perform the full range of sales activities from demand generation campaigns to pipeline management by engaging with customers, AWS internal resources (Professional Services, Solution architects, AWS service teams, etc.), and AWS partners.
WWPS Principal PAM, Aerospace and Defense Partners Amazon.com IncWWPS Principal PAM, Aerospace and Defense PartnersArlington, VAWe 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. The ideal candidate will possess both a business background that enables them to drive an engagement and interact at the executive level, as well as a technical background that enables them to easily interact with software developers and architects.
NewAWS Principal Enterprise Account Manager, Travel & Hospitality AmazonAWS Principal Enterprise Account Manager, Travel & HospitalityArlington, VAWe foster an environment where everyone's voice is heard and valued - leveraging our collective expertise in AWS Solutions, Partner Solutions, and industry knowledge to deliver unparalleled travel experiences that connect and unite the world safely and sustainably. If you're passionate about transforming the travel industry through technology and want to be part of a forward-thinking, collaborative team that values innovation and professional development, we'd love to welcome you aboard.
NewTechnical Program Manager II, Region Services / AWS Modular Data Center Amazon.com IncTechnical Program Manager II, Region Services / AWS Modular Data CenterHerndon, VAIn this role, you will own the planning and execution of high-visibility deployments that directly enable customer missions, managing cross-team and cross-org development and delivery, participating in architecture decisions, design reviews, and represent our service to Senior and Executive leadership. You will work with software developers and networking engineers along with product managers and other organizations to deliver new services and new features create the best in class solutions for our customers worldwide!
Federal Acquisitions Analyst, Senior Consultant Guidehouse IncFederal Acquisitions Analyst, Senior ConsultantMcLean, VAHas the ability to identify and address client needs: building solid relationships with clients; developing an awareness of firm services; communicating with the client in an organized and knowledgeable manner; delivering clear requests for information; demonstrating flexibility in prioritizing and completing tasks; and communicating potential conflicts to a supervisor. In this role, the individual will be responsible for gathering, compiling, and presenting acquisition and budgetary data for our clients while also supporting their acquisition-related activities such as Federal purchase card management, contracting, grants, interagency agreements, and more.
WWPS Greenfield Account Executive, SLG/EDU, Worldwide Public Sector Greenfield Sales, SLG/EDU Amazon.com IncWWPS Greenfield Account Executive, SLG/EDU, Worldwide Public Sector Greenfield Sales, SLG/EDUArlington, VAAs a Greenfield Account Executive within Amazon Web Services (AWS) Worldwide Public Sector (WWPS), you will build AWS adoption in net-new public sector accounts with limited or no existing AWS presence. This role requires building a sales function from the ground up, demanding creative problem-solving, tenacity, and the ability to develop novel approaches for reaching and engaging prospective customers.
Software Engineer - Front End Angular (TS/SCI Clearance Required) North Point TechnologySoftware Engineer - Front End Angular (TS/SCI Clearance Required)Herndon, VAIt enables users to search, discover, and retrieve imagery and other GEOINT data, while centrally managing collection, exploitation, dissemination, and production tasks across a broad network of commercial and national providers. Partner closely with Product, Design, and Backend Engineering, troubleshoot production issues with root-cause fixes, participate in code reviews, and improve pipelines and developer tooling.
Sr. Salesforce Developer- Long-Term Contract AHU TechnologiesSr. Salesforce Developer- Long-Term ContractWashington, District of ColumbiaSkills: · Experience as a Software Developer (.NET/Java) Required 16 Years · Experience as a Business Analyst 8 Years Desired · Bachelor’s degree in IT or related field or equivalent experience Required · Software Development Lifecycle Experience Required 10 Years · Requirements gathering and documentation experience Required 8 Years · MS Office/PowerPoint experience Required 10 Years · Demonstrated Work Experience as a Salesforce Certified Platform Developer Required5 Years · Demonstrated Work Experience with APEX Programming Language Required 5 Years · Demonstrated Work Experience with Visual Force Required 5 Years · Demonstrated Work Experience with Lightning Required 3 Years · Experience with Salesforce Security Models Required 5 Years Compensation: $75.00 - $80.00 per hour . · Interact directly with clients, managers and end users as necessary to analyze project objectives and capability requirements, including specifications for user interfaces, customized applications and interactions with internal Salesforce instances.
Angular Developer- Long-Term Contract (Government) Position AHU TechnologiesAngular Developer- Long-Term Contract (Government) PositionWashington, District of ColumbiaWork will include integration planning, analysis across multiple technical platforms across DHS to include both global system design and detailed program design for complex processes or interfaces, review of database design of new data structures, and suggested modifications to existing data structures. Effectively documents and teaches the structure and function of the new application and/or enhancements resulting from the assigned project(s) to other Web Application Managers and senior technical personnel to ensure that the new systems or enhancements operate smooth within environment.
Software Engineer - Developer 4 The Structures CompanySoftware Engineer - Developer 4Chantilly, VAExperience with HTML, CSS, JavaScript, React/OpenLayers, Spring Framework, Hibernate, REST/Open API, and RDBMS/NoSQL databases(SQL Server, Oracle, MySQL, MongoDB). As trusted partners to leading aerospace and defense OEMs and Tier 1 suppliers, we connect professionals with career opportunities to grow and excel in aviation, aerospace, and defense.
Java FullStack Developer/McLean, VA or Plano, TX (Onsite)-contract Suncap Technology, Inc.Java FullStack Developer/McLean, VA or Plano, TX (Onsite)-contractMcLean, VAKnowledge of modern engineering practices including CI/CD, automated testing, and emerging GenAI technologies such as GitHub Copilot, LLMs, Retrieval-Augmented Generation (RAG), and Agentic AI. In this role, you will work alongside business stakeholders, architects, and engineers to design and build scalable, secure, and high-performing applications that support critical business operations.
Lead Software Developer SME ECS Federal LLCLead Software Developer SMEDC$175,000–$185,000 / yearThe Software Developer SME will also contribute to National Security Business Unit growth by shaping application modernization roadmaps, advising on emerging mission needs, supporting proposal and capture solutioning, identifying new technical service areas, and helping position the account for expanded software engineering and mission application support. We are seeking a cleared Software Developer SME to provide expert-level software development, architecture, modernization, and technical leadership for complex mission applications supporting classified and sensitive law enforcement, national security, and criminal justice programs within the National Security Business Unit.
Software Development & Data Scientist Clearance Sponsorship GD Information TechnologySoftware Development & Data Scientist Clearance SponsorshipMcLean, VirginiaTo ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. Education: Bachelor’s degree in Computer Science, Engineering, or a related technical discipline, or the equivalent combination of education, technical certifications or training, or work experience.
Scrum Master ValidaTek IncScrum MasterWashington, DCThis role is responsible for facilitating Agile ceremonies, promoting servant leadership, enforcing Scrum/Scrumban/Kanban best practices, and enabling high-performing teams to deliver secure, iterative solutions in a DevSecOps environment. Our commitment to quality and performance optimization is the reason why our IT Service Projects and New Development Projects have been appraised at CMMI Maturity Level 5, positioning us as one of a handful of elite companies to receive the highest form of third-party validation.
Software Developer (Mid) TS/SCI Amentum Services IncSoftware Developer (Mid) TS/SCIArlington, VAWork Environment, Physical Demands, and Mental Demands: Office environment with no unusual hazards, occasional lifting to 50 pounds, constant sitting while using the computer terminal, constant use of sight abilities while reviewing documents, constant use of speech/hearing abilities for communication, constant mental alertness, must possess planning/organizing skills, and must be able to work under deadlines. Implementing and using backend frameworks such as Java Spring, Nodejs, Go GinAngularJS, React, NextJS, Spring, Nodejs, NestJS, and Gin Spring, Google Web Toolkit, Hibernate, and Struts.
Data Analyst TS/SCI Required Logistics Management InstituteData Analyst TS/SCI RequiredDC$110,000–$180,000 / yearDesire and willingness to gain technical skills and capabilities in strategy development, talent management, process mapping, organizational change, workforce planning and analysis, data analysis and visualization, and/or competency management, to include desire to obtain relevant industry certifications. Engage technical and functional program SMEs, and key data stakeholders to understand business processes, analytical requirements, key data elements, data protection guidelines, interpret analytic results, etc.
Senior Software Developer ECS Federal LLCSenior Software DeveloperDCThe Senior Software Developer will design, code, test, debug, integrate APIs, support CI/CD pipelines, perform code reviews, resolve production issues, and apply secure coding practices throughout the software development lifecycle. This role requires a hands-on senior technical professional with experience developing enterprise applications, supporting Agile or DevSecOps delivery, troubleshooting application issues, and maintaining secure, high-quality code.
NewSr. Software Developer Open Text CorpSr. Software DeveloperGaithersburg, MD$124,600–$186,800 / yearAs a key contributor, you''ll be instrumental in designing, developing, and stabilizing complex technical business solutions for our Managed Services and Cloud Services platforms, helping customers maximize the value of their information while delivering secure, scalable, and innovative information management solutions. Salary Range: $124,600 - $186,800; Depending on the candidate's education, experience, skills, geographical location, and alignment with internal equity and external market, actual salary may vary and be higher or lower than the range posted.
Web & Mobile Content Developer System OneWeb & Mobile Content DeveloperMerrifield, VAIn this six-month contractor role, you will support search engine optimization initiatives by monitoring and resolving technical content issues, including identifying and addressing 404 errors, implementing redirects, auditing and enhancing internal linking opportunities, and helping modernize legacy content through the adoption of newer web components and features. The ideal candidate has a strong attention to detail, an understanding of SEO best practices, experience working within content management systems, and the ability to collaborate with content creators and digital teams to ensure a high-quality, user-friendly web experience.
Software Developer - Senior ECS Federal LLCSoftware Developer - SeniorDCPlans and schedules new applications systems projects with user, systems software, and computer center operations personnel, including the identification of objectives, time frames, costs, and manpower requirements. Everforth ECS is seeking a highly qualified Software Developer - Senior with an active Secret Clearance to work full time on our project at Maxwell Air Force Base, AL.
Senior Software Developer VidooriSenior Software DeveloperHyattsville, MarylandThis role focuses on delivering high‑quality software, contributing technical leadership within squads, and collaborating closely with product and design in an inclusive environment that values continuous learning and pragmatic innovation. Strong hands‑on experience with modern web and cloud‑native stacks, microservices or service‑oriented architectures, and RESTful or event‑driven APIs.
Senior Counsel Government & Commercial Contracts Zeno PowerSenior Counsel Government & Commercial ContractsWashington, DC$210,000–$265,000 / yearReporting to the Chief Regulatory & Legal Officer (CRLO), this role will support Zeno's rapidly expanding portfolio of Department of Defense, Department of Energy, NASA, and other federal government programs as the company transitions from research and development into commercialization and deployment. The successful candidate will work cross-functionally with engineering, finance, business development, supply chain, program management, and executive leadership to structure, negotiate, and manage a broad range of government and commercial agreements.
Applications Developer Senior (.NET) AHU TechnologiesApplications Developer Senior (.NET)Washington, District of ColumbiaClients OIS/Application Support Division I is looking for a Senior Application Developers whose primary responsibilities include design, development, delivery and enhancement of Client-Server/Web-Based/Cloud-Based/Mobile Software Applications using application software development languages/environments with. The successful candidates will demonstrate the following knowledge, skills, characteristics, experiences and/or abilities: • Capable of design, develop and deploy applications that support users on the case and program management especially with ERAP application.
Golang Developer Pyramid, IncGolang DeveloperMcLean, VA$60–$65 / hourFull timeKey Requirements and Technology Experience: Key Skills;Golang Developer Go Java (good to have) Our client is a leading banking and financial Industry and we are currently interviewing to fill this and other similar contract positions. By applying to our jobs you agree to receive calls, AI-generated calls, text messages, or emails from Pyramid Consulting, Inc. and its affiliates, and contracted partners.
Cross-Platform Mobile Developer GD Information TechnologyCross-Platform Mobile DeveloperWashingtonTo ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. The ideal candidate will leverage their expertise in mobile development frameworks, security protocols, and Mobile Device Management (MDM) deployments to deliver robust and efficient mobile solutions.
NewJava Full stack Developer Pyramid Consulting, IncJava Full stack DeveloperMcLean, VA$65–$70 / hourKey Responsibilities: Code Quality & Testing: Utilize the JUnit Framework to write and execute unit tests, ensuring comprehensive test coverage. 5+ years of professional software development experience, with strong proficiency in Java and the Spring Boot ecosystem (REST APIs, Spring Security, Spring Data JPA, etc.).