Sr Software Engineering Manager - Remote or Hybrid in MN or DC UnitedHealth Group IncSr Software Engineering Manager - Remote or Hybrid in MN or DCDCRemote$112,700–$193,200 / yearExperience with modern technology stacks, including: Cloud platforms (Azure preferred), Java and Spring Framework, GitHub Actions and DevOps pipelines, MongoDB and modern frontend frameworks (e.g., React), Data engineering tools (ADF, Databricks), Experience working with vendor-managed delivery - Understand implementations at a technical level, validate and verify technical deliverables and milestones. The fraudulent LinkedIn messages and emails, which do not originate from any Executives LinkedIn account or of UnitedHealth Group's email domains, or those of any of its operating divisions, supposedly conducts an interview via a Zoom meeting, offers a work from home job at Optum, emails an application, sends a fake check by next day delivery through USPS and asks recipients to pay a vendor a large dollar amount.
Sr Manager, Software Engineering - Remote or Hybrid in MN or DC UnitedHealth Group IncSr Manager, Software Engineering - Remote or Hybrid in MN or DCWashington, DCRemote$112,700–$193,200 / yearThe fraudulent LinkedIn messages and emails, which do not originate from any Executives LinkedIn account or of UnitedHealth Group's email domains, or those of any of its operating divisions, supposedly conducts an interview via a Zoom meeting, offers a work from home job at Optum, emails an application, sends a fake check by next day delivery through USPS and asks recipients to pay a vendor a large dollar amount. We are committed to mitigating our impact on the environment and enabling and delivering equitable care that addresses health disparities and improves health outcomes - an enterprise priority reflected in our mission.
NewPrincipal Data Engineering - Remote or Hybrid in MN or DC UnitedHealth Group IncPrincipal Data Engineering - Remote or Hybrid in MN or DCWashington, DCRemote$112,700–$193,200 / yearThe fraudulent LinkedIn messages and emails, which do not originate from any Executives LinkedIn account or of UnitedHealth Group's email domains, or those of any of its operating divisions, supposedly conducts an interview via a Zoom meeting, offers a work from home job at Optum, emails an application, sends a fake check by next day delivery through USPS and asks recipients to pay a vendor a large dollar amount. Work within Optum"s Enterprise Data Strategy to consume and share data in the most efficient manner - data mesh enablement, data mastering, data governance, data certification and self- service.
Senior Engineering Manager - Columbia, MD Rohde & Schwarz GmbH & Co KGSenior Engineering Manager - Columbia, MDColumbia, MDRemote$170,000–$250,000 / yearAs Rohde & Schwarz USA accelerates its growth across the U.S., we're looking for a visionary Senior Engineering Manager to lead the next phase of expansion for our Advanced Technology Lab (ATL) in North America. Partner with product management, technology strategists, North American sales organization, and global product teams to align product development roadmaps with market requirements.
Cloud Software Engineer (TS/SCI with Poly required, Hybrid Remote) Red AlphaCloud Software Engineer (TS/SCI with Poly required, Hybrid Remote)Columbia, MarylandRemoteOur total compensation package was strategically designed with our members in mind with the intention to: reward our members for their hard work and commitment to our customers' missions; allow members to share in Red Alpha's success as we continue to grow and expand our footprint; provide long-term career opportunities through stability and internal mobility; and provide the resources our members need to support themselves and their dependents in the form of a robust benefits package. This includes deploying multiple containerized software solutions from 3rd party vendors, maintaining EKS clusters, and establishing hybrid networking between on-prem and cloud deployments.
Systems Engineer / GEOTAM / (Hybrid) [Contingent] iWorks CorporationSystems Engineer / GEOTAM / (Hybrid) [Contingent]Silver Spring, MDRemote$125,000–$165,000 / yearFull timeThe Systems Engineer will provide technical leadership across system architecture, application modernization, cloud migration, and operational sustainment efforts supporting mission-critical geospatial platforms used by the Decennial Census, American Community Survey, and other enterprise Census programs. This program supports the modernization, enhancement, and sustainment of the Census Bureau's MAF/TIGER geospatial systems through application development, geospatial data management, and enterprise IT modernization initiatives.
NewSenior Manager, Technology Product Management - Technology & Cyber Governance - Remote or Hybrid in MN or DC UnitedHealth Group IncSenior Manager, Technology Product Management - Technology & Cyber Governance - Remote or Hybrid in MN or DCDCRemote$112,700–$193,200 / yearThe fraudulent LinkedIn messages and emails, which do not originate from any Executives LinkedIn account or of UnitedHealth Group's email domains, or those of any of its operating divisions, supposedly conducts an interview via a Zoom meeting, offers a work from home job at Optum, emails an application, sends a fake check by next day delivery through USPS and asks recipients to pay a vendor a large dollar amount. As part of governance, collaborate with Technology and Cybersecurity teams to ensure they define Key Risk Indicators (KRIs), Key Control Indicators (KCIs), and performance metrics, including thresholds aligned to risk appetite that support the GRC metrics framework.
Lead Application Architect / DTAM / (Hybrid) [Contingent] iWorks CorporationLead Application Architect / DTAM / (Hybrid) [Contingent]Silver Spring, MDRemote$145,000–$180,000 / yearFull timeAbout this position:iWorks is supporting the Decennial Transformation and Application Modernization (DTAM) initiative, a mission-focused effort to modernize the U.S. Census Bureau's Decennial Census Programs into a secure, cloud-smart, data-centric environment supporting the 2030 Census and the American Community Survey (ACS). Interface directly with client stakeholders and senior government leadership, including presenting technical strategies and supporting negotiations.
Lead Data Architect / DTAM / (Hybrid) [Contingent] iWorks CorporationLead Data Architect / DTAM / (Hybrid) [Contingent]Silver Spring, MDRemote$130,000–$165,000 / yearFull timeThis effort focuses on modernizing and integrating applications and data systems, reducing technical debt and lifecycle costs, and enabling secure, scalable, near–real-time data processing and analytics to improve the speed, quality, security, and efficiency of census operations. The Decennial Transformation and Application Modernization (DTAM) project is a strategic initiative to transform the U.S. Census Bureau's Decennial Census Programs into a data-centric, cloud-smart IT environment supporting the 2030 Census and the American Community Survey (ACS).
Lead Systems Engineer / DTAM / (Hybrid) [Contingent] iWorks CorporationLead Systems Engineer / DTAM / (Hybrid) [Contingent]Silver Spring, MDRemote$125,000–$165,000 / yearFull timeYou will guide architecture, engineering execution, governance, and delivery across the system lifecycle while enabling a secure, cloud-smart, data-centric environment aligned to 2030 Census and American Community Survey objectives. This role is responsible for overseeing end-to-end systems engineering and integrated solution delivery efforts supporting modernization of large-scale federal data systems.
Lead Data Scientist / DTAM / (Hybrid) [Contingent] iWorks CorporationLead Data Scientist / DTAM / (Hybrid) [Contingent]Silver Spring, MDRemote$155,000–$185,000 / yearFull timeAbout this position:The Lead Data Scientist provides technical and management leadership across major program tasks and technology assignments supporting the U.S. Census Bureau's Decennial Transformation and Application Modernization (DTAM) initiative. The position carries full accountability for staffing, financial management, delivery methods, and technical oversight across assigned efforts supporting modernization of enterprise data systems, cloud environments, and analytics capabilities.
Lead Application Developer / DTAM / (Hybrid) [Contingent] iWorks CorporationLead Application Developer / DTAM / (Hybrid) [Contingent]Silver Spring, MDRemote$140,000–$168,000 / yearFull timeThis effort supports the 2030 Census and American Community Survey (ACS) by modernizing and integrating applications and data systems, reducing technical debt and lifecycle costs, and enabling secure, scalable, near–real-time data processing and analytics. iWorks is supporting the Decennial Transformation and Application Modernization (DTAM) project, an initiative focused on transforming the U.S. Census Bureau's Decennial Census Programs into a modern, data-centric, cloud-smart IT environment.
Lead Security Engineer / DTAM / (Hybrid) [Contingent] iWorks CorporationLead Security Engineer / DTAM / (Hybrid) [Contingent]Silver Spring, MDRemote$135,000–$170,000 / yearFull timeThe Lead Security Engineer supports the Decennial Transformation and Application Modernization (DTAM) initiative, a federal program designed to modernize the U.S. Census Bureau's Decennial Census and American Community Survey (ACS) systems into a cloud-smart, data-centric, and secure IT environment. This role provides both technical and management leadership across enterprise security initiatives, ensuring secure modernization of applications, data systems, and cloud infrastructure.
Water - Wastewater Engineer (Hybrid Remote, MD) Cole SolutionsWater - Wastewater Engineer (Hybrid Remote, MD)Hunt Valley, MDRemoteFull timeWater #wastewater #Municipal #Environmental #Engineering #Civil #WWTP #onewater #conveyance #treatment #compliance #pipeline #hydraulics #AutoCAD #SewerGEMS #WaterGEMS #Biowin #hiringnow #jobs #Baltimore #Delaware #Dover #PFAS Powered by JazzHR. You'll be deeply immersed in the full spectrum of planning, design, and project delivery, honing your design and project management capabilities to become a bonafide Subject Matter Expert/SME in Water and/or Wastewater Treatment and facilities.
Program Manager - Engineering Design Pantheon DataProgram Manager - Engineering DesignArlington, VARemote$150,000–$225,000 / yearFull timeEnsure enterprise solutions align with Department of Navy cybersecurity, RMF, and ATO requirements while establishing governance frameworks, architectural review processes, and risk mitigation strategies to support secure deployment and long-term operational success. You will work for the Senior Program Manager, along side deployment and cloud migration Program Managers, to design a deployment program to modernize a 20+ year old Navy IT environment into a modern, AWS GovCloud, deployment of Theios AI.
Lead Software Engineer - Remote or Hybrid in MN and DC UnitedHealth Group IncLead Software Engineer - Remote or Hybrid in MN and DCDCRemote$112,700–$193,200 / yearThe fraudulent LinkedIn messages and emails, which do not originate from any Executives LinkedIn account or of UnitedHealth Group's email domains, or those of any of its operating divisions, supposedly conducts an interview via a Zoom meeting, offers a work from home job at Optum, emails an application, sends a fake check by next day delivery through USPS and asks recipients to pay a vendor a large dollar amount. We have received recent reports of fraudulent LinkedIn messages and emails alleging or claiming to be sent from UnitedHealth Group, UnitedHealthcare, or Optum Executives.
NewSenior Design Engineer – Wastewater & Hydraulic Modeling (Remote/Hybrid) Talent Consulting ExpertsSenior Design Engineer – Wastewater & Hydraulic Modeling (Remote/Hybrid)Arlington, VirginiaRemoteHydraulic Modeling & Analysis: Develop and calibrate hydraulic models for wastewater systems using tools like EPANET, WaterCAD, and GIS.Example: Manage hydraulic modeling for a sanitary sewer system to ensure optimal wastewater flow and stormwater management. #WastewaterEngineer #WaterInfrastructure #EnvironmentalEngineering #HydraulicModeling #StormwaterManagement #EPACompliance #Sustainability #CivilEngineering #RemoteWork #HiringNow #EngineeringCareers.
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.
Principal Software Engineer - Remote or Hybrid in MN and DC UnitedHealth Group IncPrincipal Software Engineer - Remote or Hybrid in MN and DCDCRemote$132,200–$226,600 / yearThe fraudulent LinkedIn messages and emails, which do not originate from any Executives LinkedIn account or of UnitedHealth Group's email domains, or those of any of its operating divisions, supposedly conducts an interview via a Zoom meeting, offers a work from home job at Optum, emails an application, sends a fake check by next day delivery through USPS and asks recipients to pay a vendor a large dollar amount. Serving all of UnitedHealth Group"s digital technology needs, the CDO team is responsible for driving outcomes across nearly 30 million+ human lives with UnitedHealthcare insurance, a number which puts UHC at the top of the pack as the largest managed care provider in the United States.
NewSystems Engineer II (Systems Integration & Interoperability) :: Harrisburg, PA (Hybrid) ARK Solutions, Inc.Systems Engineer II (Systems Integration & Interoperability) :: Harrisburg, PA (Hybrid)Washington, DCRemoteThis role involves working closely with technical teams, clinical stakeholders, and vendors to ensure system readiness and operational success. The Systems Engineer II supports the design, integration, testing, deployment, and sustainment of enterprise health information technology solutions.
Cloud Engineer - Active TS/SCI - HYBRID REMOTE Maania Consultancy ServicesCloud Engineer - Active TS/SCI - HYBRID REMOTEWashington, District of ColumbiaRemoteThe position involves providing technical expertise in cloud technologies, leading project teams, managing stakeholders, implementing automation tools, ensuring security, and continuously improving processes in a federal cybersecurity setting. AWS Certified Developer Associate or Solution Architect, Azure or GCP certifications preferred.
Civil/Structural Engineering Department Manager AHU Technologies IncCivil/Structural Engineering Department ManagerWashington, DCRemoteThis senior leadership role combines hands-on engineering responsibilities with team management, ensuring high-quality project delivery within industrial environments such as chemical, petrochemical, and manufacturing facilities. Seeking an experienced Civil/Structural Engineering Department Manager to lead both technical project execution and departmental operations.
Principal Threat Surface Analyst - Remote or Hybrid in MN or DC UnitedHealth Group IncPrincipal Threat Surface Analyst - Remote or Hybrid in MN or DCWashington, DCRemote$112,700–$193,200 / yearThe fraudulent LinkedIn messages and emails, which do not originate from any Executives LinkedIn account or of UnitedHealth Group's email domains, or those of any of its operating divisions, supposedly conducts an interview via a Zoom meeting, offers a work from home job at Optum, emails an application, sends a fake check by next day delivery through USPS and asks recipients to pay a vendor a large dollar amount. Experience implementing and supporting enterprise endpoint platforms such as: Microsoft Defender for Endpoint, Trend Micro, CrowdStrike, SentinelOne, Carbon Black.
NewMicrosoft Cloud Engineer, Senior, Hybrid Remote (DW26061145C) GTSC-Talent SolutionsMicrosoft Cloud Engineer, Senior, Hybrid Remote (DW26061145C)Washington, District of ColumbiaRemoteDepending on the nature of the job duties or requirements set forth by our government clients, additional screenings such as drug testing and/or credit checks may be required. GTSC and its Datawiz business unit seeks a Senior Microsoft Cloud Engineer for mid -August 2026 start.
Director Cloud Security Architecture & Engineering Breakthru Beverage Group LLCDirector Cloud Security Architecture & EngineeringMDRemote$175,000–$200,000 / yearThis role will lead and work alongside a cloud security architecture and engineering team, directly designing, implementing, and evolving a multi-cloud, hybrid security architecture across AWS, Azure, multiple SaaS providers, and operational technology environments. Own and evolve the enterprise cloud security architecture across AWS, SaaS platforms, hybrid infrastructure, applications, networking, and operational technologies, ensuring alignment with business strategy and risk tolerance.
NewDirector of Engineering, Energy Storage SOLV Energy LLCDirector of Engineering, Energy StorageMDRemote$170,074–$226,199 / yearFoster effective communication and collaboration between the Energy Storage Engineering group and cross-functional teams, including internal and external engineers, business development managers, project managers, pre-construction managers, procurement specialists, schedulers, estimators, and construction teams. In addition, candidate introductions or resumes can only be submitted to our internal talent acquisition recruiting team if a signed vendor agreement is already on file and the third-party recruiter or agency has received formal instructions from our internal talent acquisition team to submit candidates for a particular job posting.
Acquisitions and Engineering Subject Matter Expert Pantheon DataAcquisitions and Engineering Subject Matter ExpertWashington, DCRemote$110,000–$190,000 / yearFull timeOur service offerings have grown in the past ten years, including infrastructure resiliency, contact center operations, information technology, software engineering, program management, strategic communications, engineering, and cybersecurity. If you require reasonable accommodation in completing this application, interviewing, completing any pre-employment testing, or otherwise participating in the employee selection process, please direct your inquiries to our Talent Team at Recruiting@kenificgroup.com.
Lead AI/ML Engineer-Remote Nationwide or Hybrid in MN/DC UnitedHealth Group IncLead AI/ML Engineer-Remote Nationwide or Hybrid in MN/DCDCRemote$145,500–$249,500 / yearThe fraudulent LinkedIn messages and emails, which do not originate from any Executives LinkedIn account or of UnitedHealth Group's email domains, or those of any of its operating divisions, supposedly conducts an interview via a Zoom meeting, offers a work from home job at Optum, emails an application, sends a fake check by next day delivery through USPS and asks recipients to pay a vendor a large dollar amount. The Lead AI/ML Engineer will provide hands-on technical leadership to build scalable, production-ready AI/ML solutions that convert complex healthcare data into actionable workflows for care, quality, finance, and provider enablement teams.
Structural Engineering Portfolio Leader - Northeast Brown and Caldwell IncStructural Engineering Portfolio Leader - NortheastMDRemote$129,000–$177,000 / yearKey objectives of the Structural Discipline Leader role are to: represent the discipline within the Portfolio delivery team, ensure the discipline has the resources to deliver all design projects in the Portfolio, support the client portfolio and Portfolio Design Manager to ensure successful project delivery and support the Portfolio Chief Engineer to ensure successful quality assurance and control of project deliverables. In the event a recruiter or agency submits a resume or candidate without a previously signed agreement and approved engagement request with Brown and Caldwell, Brown and Caldwell reserves the right to pursue and hire those candidate(s) without any financial obligation to the recruiter or agency.
Appian Test Engineering Lead GroundswellAppian Test Engineering LeadMcLean, District of ColumbiaRemoteThe salary range for this role takes into account the wide range of factors that are considered in making compensation decisions, including but not limited to skill sets, experience and training; licensure and certifications; and other business and organizational needs. 5+ years of software testing experience, working with developers, project and release managers, system administrators, business analysts, and database administrators.
Civil Engineering Lead Pantheon DataCivil Engineering LeadWashington, DCRemote$100,000–$200,000 / yearFull timeProvide Civil Engineering and realty expertise to advise on planning, development, site location, construction management, general contracting oversight, cost control, build-out management and coordination with relevant third parties (e.g., lessors, general contractors, etc.) for in-process and planned Shore Infrastructure. Pantheon Data is seeking a Civil Engineering Lead to provide technical leadership and strategic guidance in support of U.S. Coast Guard Headquarters Directorates, ensuring the effective planning, development, and management of shore infrastructure and real property programs.
Systems Engineer - Engineering PMO Pantheon DataSystems Engineer - Engineering PMOWashington, DCRemote$100,000–$200,000 / yearFull timeOur service offerings have grown in the past ten years, including infrastructure resiliency, contact center operations, information technology, software engineering, program management, strategic communications, engineering, and cybersecurity. Pantheon Data is seeking a Systems Engineer - Engineering PMO who will support the PMO Engineering Division, providing systems engineering, integration, and acquisition expertise for aircraft and vessel systems.
Engineering Manager, O&M Ad HocEngineering Manager, O&MMc Lean, VARemote$185,000–$205,000 / yearIn support of various state and city equal pay transparency laws, Ad Hoc job descriptions feature the starting range we reasonably expect to pay to candidates who would join our team with little to no need for training on the responsibilities we've outlined above. We’ve helped build products that connect Veterans to tailored services, help millions access affordable health care, and support important programs like Head Start.
Engineering Technician (Mid) - 100% Remote SercoEngineering Technician (Mid) - 100% RemoteAnnapolis, MDRemoteBe able to work in areas with drafts, loud noise, temperature variation/high heat, confined (crawl) spaces, climb dry dock stairs/ladders, work in kneeling position for layout of cable runs under false decking, lift up to 50 pounds (without assistance) with 80% of work requiring carrying, pushing, and/or pulling up to 40 pounds for majority of shift while being in a standing, crouching, or walking position. Eligible employees also gain access to a wide range of benefits from comprehensive health coverage and health savings accounts to retirement plans, life and disability insurance, and time-off programs that support work-life balance.
Senior Engineering Manager GiveCampusSenior Engineering ManagerWashington, DCRemoteAs one of two Dev Managers on a growing team of 30+ Engineers, you will be responsible for managing two or more engineering pods which consist of a Tech Lead and 2-5 engineers working closely with a PM from the Product team. We have a beautiful 12,000sf office in Washington, DC that is available for people to use whenever they want, and we regularly organize team meet-ups, visit partner institutions, and host retreats in various locations.
Data Engineering Manager Dragos IncData Engineering ManagerDCRemoteAs the market leader in ICS/OT Cybersecurity, we are dedicated to arming our customers with best-in-class technology, threat intelligence, and services to protect their systems as effectively and efficiently as possible. The ideal candidate should have deep technical knowledge of data integration processes, exceptional leadership skills, and a proven ability to develop high-performing teams.
NewSenior Engineering Manager Great MindsSenior Engineering ManagerDc, District of ColumbiaRemoteAs a Senior Engineering Manager, you will be a senior level technical and people leader responsible for influencing the strategic technical direction, core processes and directly managing a team of 8+ deeply technical engineers to ensure our digital offerings empower the Great Minds mission. The expected base salary range for this position is $147,000-$164,000, however the offered salarymay be higher or lower than the above range dependent on numerous factors including, but not limited to location, work experience, skills and internal equity considerations.
Engineering Manager - Fintech, Lodging Hopper IncEngineering Manager - Fintech, LodgingDCRemoteWere looking for an engineering leader who can do two things at once: run a high-performing product team building durable, scalable systems, and be a credible, partner-facing technical leader who can sit across the table from a partners CTO, scope an integration, and ship it. Hotels CFAR (Cancel For Any Reason) is one of HTSs fastest-growing fintech products: a cancellation service embedded directly into partner booking flows, letting travelers cancel for any reason and receive a refund, no questions asked.
NewRemote Field Engineer Orbis OperationsRemote Field EngineerMcLean, VirginiaRemoteSupport the VP of Innovation in engaging foreign partners to: 1) capture best practices for partner interoperability, communications, and partner sharing; 2) understand the specific needs and technical environment to facilitate modern interoperability, communications, and partner sharing; and 3) deliver MVP solutions, gather feedback, and establish relationship to facilitate iterative improvements and feature delivery. General Responsibilities (include but are not limited to):Working with the VP of Innovation to identify client needs and requirements, and then working with the Product Engineering Team under the leadership of the Engineering Manager to architect, prioritize, and deliver those features in accordance with software engineering best practices.
NewITS/Smart Mobility Project Manager Macpower Digital Assets Edge Private LimitedITS/Smart Mobility Project ManagerHunt Valley, MDRemote$150,000–$175,000 / yearOversee the development of preliminary (30%) and detailed design documents (plans, specifications, estimates) for deploying traffic control equipment, communication devices/media (fiber optics, wireless), CCTVs, DMS, decision support systems, and ITS asset management plans. This role involves applying expert knowledge to complex projects and task orders, serving as a project manager, task lead, or playing a major role in ITS design and systems engineering efforts.
Billing and Accounts Receivable Manager Deloitte Touche Tohmatsu LtdBilling and Accounts Receivable ManagerMDRemote$140,000–$160,000 / yearAs an Epic Billing and Accounts Receivable Manager you will help deliver back-end revenue cycle management (RCM) services, including billing and claims submission, A/R follow-up, denials management, payment posting, and credits and refunds, for health care provider client. This compensation range is specific to the remote role and takes into account the wide range of factors that are considered in making compensation decisions including but not limited to skill sets; experience and training; licensure and certifications; and other business and organizational needs.
Design Manager (Remote) CoreSiteDesign Manager (Remote)Washington, D.C.RemoteFull timeThis role sits alongside two regionally focused Development & Design Managers responsible for ground-up development and large-scale interior buildouts, and is specifically focused on the interior retrofit and improvement work that spans the full U.S. portfolio. Projects are interior-scope, executed within operating data centers, and require someone who thrives in the complexity of occupied, live-infrastructure environments where precision, coordination, and minimizing customer disruption are as important as design quality.
Senior Platform Product Manager KoalafiSenior Platform Product ManagerArlington, VARemote$137,000–$185,000 / yearCommunications Gateway - own the platform that routes and delivers consumer and merchant communications across channels; ensure it is scalable, auditable, and supports the needs of product teams without requiring bespoke solutions. Modernization Priorities - partner with engineering to identify, scope, and sequence the highest-impact investments in platform modernization; create the clarity needed for teams to migrate off legacy systems safely and incrementally.