Senior Principal Engineer
Hazen and Sawyer
Senior Principal EngineerHazen and Sawyer is seeking a Senior Principal Engineer for our Fairfax, VA office.Key Responsibilities:Delivering public sector water and wastewater facilities planning and design projectsSupport projects as a critical part of the design team, a design lead, a task manager, and/or a project managerPrepare facility assessment and design reports, perform design calculations, perform process and/or hydraulic modeling, select and size equipment, prepare design documents and construction documents, support construction phase services both in office and in the fieldField work and site visits from planning through construction may require occasional travelSupport and mentor junior engineers and will be supported by multiple senior mentors on projects and local and regional office leadershipRequired Qualifications:Bachelor of Science degree in Civil, Environmental, Chemical, or Mechanical EngineeringStrong verbal and written communication skillsPE license (Virginia, or ability to be licensed in Virginia via comity)3+ years following PE licensure of documented design experience for water/wastewater facilities projectsExperience working on and collaborating with multidisciplinary teams in roles including Task Manager and/or Design LeadExperience supervising, coordinating and reviewing work by junior and technical staffAbility to estimate workload and develop schedulesProficient in standard software platforms (e.g., Microsoft Office Suite, Bluebeam, etc.)Strong organizational skillsPreferred Qualifications:Master of Science degree in Civil Engineering, Environmental Engineering or Construction ManagementExperience serving as Project Manager for water/wastewater facility projectsExperience supporting proposal preparation and participating in interviewsExperience communicating and coordinating with clientsExperience mentoring junior and technical staffExperience delivering water and/or wastewater facility projects from preliminary design through constructionFamiliarity with CADD, GIS, Revit, and/or other softwareWhat We Offer:Comprehensive health benefits (medical, dental, vision, and prescription plans)Pre-tax flexible spending plans for medical, dependent care, and transportationShort and long-term disability, and employer paid life insurancePaid holidays, floating holidays, and paid time off (PTO)Employer-contributed 401(k) plan and additional financial planning supportProfessional growth opportunities, including tuition reimbursement, in-house training, and incentives for professional registration and professional organization membershipsStarting pay range for this position depends on skills, experience, education and geographical location
- ...deep technical knowledge and strong analytical skills in Identity and Access Management (IAM) to join our team as a Senior Principal Information Engineer. This is a full-time remote role with minimal travel requirements.This Senior Principal Information Engineer role is...SeniorFull timeFor contractorsRemote work
- Job TitleSenior Application and System Technologies (AST)/Principal Engineer (PE)LocationMcLean, VA 22102 US (Primary)CategoryResearch, Development... ...plans. The AST/PE shall be able to receive guidance from senior software developers and engineers while supporting senior...SeniorInternship
$114k - $171k
...employees are not only part of history, they're making history.Northrop Grumman Space Systems is seeking an Principal OR Sr. Principal RF Electronic Systems Engineer to join our team. This position would be based in Fairfax, VA.The RF Electronic Systems Engineer will...SeniorFull timeRelocation packageShift work- ...MANTECH seeks a motivated, career and customer-oriented Senior Principal Cyber Security Engineer to join our team in Chantilly, VA . In this role, you will support mission-critical cybersecurity operations by designing, deploying, and maintaining secure, resilient...SeniorWork at office
$126.2k - $264.1k
...and procedures (TTPs), aiding in security incident response, executive communication, and customer outreach. As a Senior Manager for the Signals Engineering team, you will be responsible for managing the creation of innovative technologies to help identify the bad guys...SeniorTemporary workFlexible hours- ...Senior Principal (Level 4)RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE... ...(SCI) clearance at time of applicationExperience in systems engineering to include architectural studies, technical baseline definition...SeniorRemote workRelocation packageShift work
$135.8k - $213.4k
...history.Northrop Grumman’s Space Systems Sector is seeking a Systems Engineer - Level 4 to join our team in our Fairfax, VA or Morrisville,... ...subsystemsConduct demos and briefings for customers and senior leadershipEnsure seamless integration of capabilities, epics, and...SeniorFull timeRelocation packageShift work- ...MANTECH seeks a motivated, career and customer-oriented Senior Principal Cloud Engineer to join our team in Chantilly, VA . The Senior Principal Cloud Engineer will leverage their strong technical background and knowledge to design, implement, and manage secure...SeniorWork at office
- ...Northrop Grumman's Space Sector seeks a Sr. Staff Engineering Program Manager (EPM) Level 6 to join our team in Dulles, VA or McLean, VA. This 100% onsite role oversees engineering execution, leads IPTs, and ensures program success across budgets, schedules, and EVMS....Senior
$135.8k - $213.4k
...Our employees are not only part of history, they're making history.Northrop Grumman Space Systems is seeking a Sr. Principal Electromechanical Engineer to join our team. This position is based in Linthicum MD, Fairfax VA, or Morrisville NC.The selected candidate for this...SeniorFull timeRelocationShift work$170k - $200k
Summary Position Title: Senior Principal Mission Engineer (Scenarios) Position ID: TA232 Location(s): Hybrid; Chantilly, VA Application Deadline: We are accepting applications on an ongoing basis Security Clearance Requirement: TS/SCI Security Clearance...SeniorFull timeTemporary workFor contractorsLocal area$125k - $175k
...Job Description Job Description Ready to take the lead on impactful transportation projects? ATCS is seeking a Senior Roadway Engineer or Roadway Engineering Project Manager to join our growing Virginia transportation team. This is a hybrid position based in Hampton...SeniorFull timeFor contractorsLocal areaImmediate startFlexible hours$292k - $386k
...be able to more effectively operate and survive within this expanding environment with limited personnel. Working across product, engineering, sales, logistics, operations, and mission success, the Space Special Programs team develops, tests, deploys, and operates new,...SeniorFull timeWork experience placementImmediate start$135k - $216k
ResponsibilitiesThe Senior Manager, Systems Engineering provides leadership to a team of engineers and professional staff in developing, modifying, creating, and testing solutions to our client’s infrastructure related technical needs. This role is responsible for planning...SeniorContract workShift work$142.2k - $213.4k
...making history.Northrop Grumman’s Space Sector is seeking a Sr Principal DevOps Engineer to join our team in Aurora, CO or Fairfax, VA to support on... ..., performance tuning, and implementing changes defined by senior engineers.Support installation and day-to-day operations of...SeniorFull timeRelocation packageShift work- DescriptionGPI seeks a Project Manager - Senior Electrical Engineer to join our Fairfax, VA office. As a Senior Engineer, you will represent GPI in all interactions with clients and project teams. You will supervise, coordinate, and assign various projects to be performed...SeniorContract workWork at office
- ...Principal Engineer/Sr. Principal EngineerHazen is seeking a qualified and experienced Principal Engineer/Sr. Principal Engineer for our Fairfax, VA office.Why Hazen and Sawyer:Founded in 1951 by the son of Allen Hazen (developer of the Hazen-Williams equation), we are...SeniorWork at officeFlexible hours
$167.71k - $176.88k
Basic Qualifications Bachelor's degree in Engineering, or a related Science, Engineering or Mathematics field, plus a minimum of 8 years of relevant experience; or Master's degree plus a minimum of 6 years of relevant experience.CLEARANCE REQUIREMENTS: Department of...SeniorWork at officeImmediate startFlexible hours$124.73k - $142.54k
...Transportation Group in Richmond, VA (with flexibility for Virginia Beach, VA, Fairfax, VA, or Washington, D.C.) as an experienced Senior Bridge Engineer/Project Manager, combining technical excellence and project leadership to deliver high-profile bridge projects that shape...SeniorFull timeFlexible hours- A leading defense contractor is seeking a data scientist/machine learning engineer to build analytics solutions impacting critical decisions. This hybrid/remote role requires strong skills in Python, SQL, and cloud technologies such as AWS and Databricks. The position...SeniorFor contractorsRemote work
$95k - $245k
...solutions. From military defense and space exploration to biomedical engineering, lives often depend on the solutions we provide. Our... ...:The Contested Environment System Analysis group is seeking a Principal-level Radiation Architecture Engineer to support cross-functional...Full timeLocal area- Trident Systems, based in Fairfax, VA, is seeking a Program Chief Engineer to lead the program’s technical direction and delivery of space-based hardware systems. The role requires driving requirements, design verification, and cross-team alignment to meet cost, schedule...Senior
- ...laws, requiring U.S. person status as defined by 8 U.S.C. 1324b(a)(3).Please review the job details below.Maxar is hiring a Principal/Chief Engineer for a High Performance Computing (HPC) environment and will be responsible for the oversight and overall delivery of HPC...Full timeTemporary work
- EMCOR Government Services seeks a Chief Engineer for a Class A office complex in McLean, VA. The role requires overseeing a 20-25 person staff, ensuring reliable operation of HVAC, data center, and BAS systems, and directing subcontractors for PM tasks. The ideal candidate...SeniorFor subcontractorWork at office
$126.2k - $264.1k
...creation of testing tools and facilitates their integration into engineering workflows, ensuring team is equipped to identify and address... ...security violation escalation, managing communication with senior leadership and stakeholders. Conducts compliance assessments and...SeniorTemporary workFlexible hours$156k - $196k
...functions include enterprise architecture, software and systems engineering, cybersecurity, and technology risk and compliance.About the... ...vaulting solutions and strong system integration skills. As the IAM Principal Privileged Access Engineer, you will play a critical role in...Full timeWork at office$244k - $390k
...products and services that help people, businesses and governments realize their greatest potential. Title and Summary Senior Principal, Data Engineering Overview: Mastercard Services Technology is seeking a Senior Principal Data Engineer to help drive our mission...SeniorFull timePart timeWorldwideFlexible hours- ...Principal Optical EngineerQinetiQ US is looking for a Principal Optical Engineer experienced in electro-optic/infrared (EOIR) imaging sensor optical design, laboratory optical characterization, and prototype integration with a willingness to learn new skills to join our...
$171.6k - $338.3k
...Recruiting for this role ends on 12/31/2026.The Team:Deloitte’s Cyber Engineering is a new team that is spearheading the buildout of... ...Professional development From entry-level employees to senior leaders, we believe there’s always room to learn. We offer opportunities...SeniorLocal area$164.5k - $213.5k
...committed to supporting your success in both your professional and personal lives.Position OverviewQinetiQ US is looking for a Principal Optical Engineer experienced in electro-optic/ infrared (EOIR) imaging sensor optical design, laboratory optical characterization, and...Work experience placementNight shift
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Principal Engineer. Be the first to apply!
- senior principal engineer Fairfax, VA
- data center chief engineer Fairfax, VA
- chief engineer Fairfax, VA
- senior chief engineer Fairfax, VA
- principal engineer Fairfax, VA
- senior director engineering Fairfax, VA
- engineering director Fairfax, VA
- director software engineering Fairfax, VA
- principal developer Fairfax, VA
- senior civil engineer project manager Fairfax, VA




