Engineering Structures Impact Factor Jobs in Reston, VA

General Summary of Position
Oversees the operation of the Boilers and Chiller Plant and associated equipment ensuring the efficient operation during assigned shift. May be required to lead or assist with regular maintenance or emergency repairs to the boilers chillers and/or related equipment.

Primary Duties and Responsibilities

• Oversees/monitors the operation of the Chiller Plant during assigned shift. Ensures the systems are operating at best possible performance levels.
• Performs regular maintenance/repairs to the Chiller Plant such as appropriate during shift reporting larger/ more complicated needs to the Forman or Power Plant Engineer I for action by the maintenance crew.
• Assists the maintenance/repair crew with scheduled and emergency repairs to the boilers generators chillers and related Facilities Management equipment.
• Ensures that assigned areas are operating within all applicable Hospital federal and local governing codes standards and regulations including but not limited to: OSHA NFPA The Joint Commission and Fire and Life Safety practices.
• Learns and remains current with the latest applicable federal and local governing codes standards and regulations regarding fire safety plumbing electrical and plant operations including but not limited to: OSHA NFPA The Joint Commission ASHRAE ANSI DCRA D.C. Fire & Safety Codes and the Hospital's Fire and Life Safety practices.

Minimal Qualifications
Education

• High School Diploma or GED required or
• Trade/vocational school graduate or equivalent with courses in chemistry physics and/or mathematics and such training as to be able to read: layout diagrams blueprints mechanical drawings work sketches etc. preferred

Experience

• completion of an approved apprentice training program required

Licenses and Certifications

• Must have a current D.C. Third Class Operating License required and
• current CFC License. required

Knowledge Skills and Abilities

• Familiarity with the latest applicable codes standards and regulations including but not limited to: OSHA NFPA The Joint Commission and Fire and Life Safety practices.

General Summary of Position
Oversees the operation of the Boilers and Chiller Plant and associated equipment ensuring the efficient operation during assigned shift. May be required to lead or assist with regular maintenance or emergency repairs to the boilers chillers and/or related equipment.

Primary Duties and Responsibilities

• Oversees/monitors the operation of the Chiller Plant during assigned shift. Ensures the systems are operating at best possible performance levels.
• Performs regular maintenance/repairs to the Chiller Plant such as appropriate during shift reporting larger/ more complicated needs to the Forman or Power Plant Engineer I for action by the maintenance crew.
• Assists the maintenance/repair crew with scheduled and emergency repairs to the boilers generators chillers and related Facilities Management equipment.
• Ensures that assigned areas are operating within all applicable Hospital federal and local governing codes standards and regulations including but not limited to: OSHA NFPA The Joint Commission and Fire and Life Safety practices.
• Learns and remains current with the latest applicable federal and local governing codes standards and regulations regarding fire safety plumbing electrical and plant operations including but not limited to: OSHA NFPA The Joint Commission ASHRAE ANSI DCRA D.C. Fire & Safety Codes and the Hospital's Fire and Life Safety practices.

Minimal Qualifications
Education

• High School Diploma or GED required or
• Trade/vocational school graduate or equivalent with courses in chemistry physics and/or mathematics and such training as to be able to read: layout diagrams blueprints mechanical drawings work sketches etc. preferred

Experience

• completion of an approved apprentice training program required

Licenses and Certifications

• Must have a current D.C. Third Class Operating License required and
• current CFC License. required

Knowledge Skills and Abilities

• Familiarity with the latest applicable codes standards and regulations including but not limited to: OSHA NFPA The Joint Commission and Fire and Life Safety practices.

Miscellaneous Metals Project Manager – DMV Area

Chantilly, VA (Local Travel) | Steel Fabrication & Erection | $80K–$115K

Full-Time, On-Site

About the Role

Seeking an experienced Project Manager to oversee commercial miscellaneous metals projects across DC, Maryland, and Virginia. Work with a tight-knit team delivering design-driven fabrication and erection projects.

What You’ll Do

• Coordinate with detailers and track drawings
• Perform field measurements/site visits
• Manage schedules, materials, subcontractors, and erectors
• Oversee change orders, cost tracking, and closeout
• Maintain strong client and subcontractor relationships

What You Bring

• 5+ years PM experience in miscellaneous metals OR relevant degree + 2 years
• Skilled in reading/interpreting architectural & structural drawings
• U.S. work authorization (Citizen/Green Card)
• Strong organizational and communication skills

What You’ll Get

• $80K–$115K base salary
• Health, dental, vision insurance
• 401(k) with match
• Flexible PTO
• Long-term opportunity with an AISC-certified MBE/DBE contractor

Job Title : Nuclear Engineer (Naval Reactors Engineer) Category / Component : Officer • Active Overview Design, regulate, and oversee the Navy's nuclear propulsion program, including reactor design, fleet operations, and eventual defueling and decommissioning of nuclear powered ships and submarines from Naval Reactors Headquarters and associated Department of Energy laboratories and shipyards.

Key Responsibilities Provide technical direction in areas such as reactor and fluid systems design, reactor physics, materials development, component design for steam generators, pumps, and valves, instrumentation and control for reactor and propulsion plants, testing and quality control, radiation shielding, and chemistry and radiological controls; review designs and analyses from laboratories, shipyards, and industry partners; coordinate with fleet units to ensure safe and reliable nuclear plant operation.

What to Expect Assume significant technical responsibility early in your career as part of a lean headquarters staff; work primarily in an analytical and oversight role rather than operating plants at sea; balance long term engineering projects with time sensitive fleet and shipyard issues; frequent coordination with senior civilian engineers, naval officers, and technical teams; high expectations for attention to detail, judgment, and written and oral communication.

Work Environment Work mainly at Naval Reactors Headquarters in the Washington, District of Columbia area with regular engagement with Department of Energy laboratories, nuclear training sites, shipyards, and nuclear powered ships and submarines; office based work that includes document reviews, technical meetings, inspections, and site visits rather than day to day shipboard watchstanding.

Pathways, Training & Advancement Officer commissioning through programs such as Officer Candidate School or the Nuclear Propulsion Officer Candidate program followed by a structured technical qualification program at Naval Reactors; rotational exposure to laboratories, prototypes, shipyards, and fleet support issues; progressive responsibility leading projects and becoming a subject matter expert, with opportunities for professional military education and advanced graduate study in technical fields.

Entry through the Nuclear Propulsion Officer Candidate program for qualified college students and recent graduates, or selection via Officer Candidate School for those who already hold qualifying degrees; all applicants must meet Nuclear Propulsion Program academic and technical screening standards in addition to general officer commissioning requirements.

Qualifications All Navy jobs require meeting general enlistment or commissioning standards, which typically include: Eligibility to serve in the United States Navy, which may involve United States citizenship or other legal residency and work status, depending on the program and current law and policy A high school diploma or equivalent for enlisted positions, and a bachelor's or qualifying professional degree for officer positions Meeting age limits that vary by program and are set in law and Navy policy.

Some communities have more restrictive age ranges Meeting medical, vision, and dental standards, including body composition and physical fitness requirements, with some jobs requiring more demanding standards Meeting character and conduct standards, including background screening Achieving required test scores for your program, such as the Armed Services Vocational Aptitude Battery for enlisted roles or officer qualification tests for officer programs Eligibility for a security clearance when required for your rating or designator Additional qualifications can include specific skills, education, licensure, or experience that are unique to a job or community and will be reviewed with you by a recruiter.

Additional qualifications for this job may include: Completion of a rigorous technical degree in engineering, physics, mathematics, or a closely related field that includes strong backgrounds in calculus and physics; outstanding academic record, particularly in technical coursework; United States citizenship and eligibility for a high level security clearance; strong technical aptitude and comfort with detailed analytical work.

Education Education benefits are available through standard Navy programs such as Tuition Assistance, the Post-9/11 GI Bill, ACE-recommended college credit for Navy training, Navy COOL-funded certifications, USMAP apprenticeships, and other Navy College Program opportunities.

Specific options depend on the Sailor's status, training, and current Navy policy.

Pay, Benefits & Service Pay, benefits, and service commitments follow standard Navy Active and/or Reserve policies for this type of role, including basic pay, allowances when eligible, health coverage, and retirement options.

Exact entitlements, special pays, and service obligations depend on program, component, years of service, and current law and Navy guidance.

Incentives Incentives such as bonuses, special pays, and loan repayment may be available at times for specific ratings or communities, but they change frequently and cannot be guaranteed.

Applicants must confirm current incentives and eligibility with an official Navy recruiter or authoritative Navy source.

Notes and Disclaimers This description is a general overview of typical duties, training, and opportunities in this community.

It does not replace official Navy instructions, policies, or contracts and does not guarantee specific assignments, training, incentives, or outcomes.

Actual opportunities depend on Navy needs, individual performance, screening results, and current law and policy.

Company – Our client is a leading cybersecurity services provider, trusted by some of the most recognized brands in the U.S. They partner closely with Fortune 500 enterprises to deliver cutting-edge identity, cloud, and security solutions. Known for their technical excellence and white-glove client service, they are consistently recognized as one of the top MSSPs in North America.

Job Title – Senior Identity (Ping) Engineer

Location – Tysons, Virginia (Hybrid – onsite 3 days per week)

Role Type – 6-Month Contract (1,040 hours)

Must Have Skills:

• 7+ years of Identity & Access Management (IAM) engineering and architecture experience
• 5+ years of hands-on experience with the full Ping Identity suite across enterprise and/or CIAM use cases
• Deep expertise with PingFederate, PingID, Ping Directory, and PingOne (Enterprise + Customer)
• Proven experience designing and implementing modern passwordless authentication (FIDO2/WebAuthn/Passkeys) at enterprise scale
• Expert-level understanding of IAM protocols (SAML, OAuth 2.0, OIDC, SCIM, LDAP) and demonstrated ability to lead large-scale Ping deployments

Responsibilities and Job Details:

• Serve as the Ping Identity SME and platform owner across a large financial services enterprise
• Architect, design, deploy, and scale Ping Identity solutions for both workforce SSO and CIAM use cases
• Perform hands-on configuration across the Ping suite supporting on-prem, private cloud, and SaaS (PingOne) architectures
• Design and implement identity workflows using PingOne DaVinci or similar orchestration tools
• Lead enterprise-wide rollout of passwordless authentication (FIDO2/WebAuthn/Passkeys)
• Provide advanced troubleshooting and root cause analysis across Ping environments
• Drive integration with Azure Identity (Entra ID) and other IdP/IdM technologies
• Manage multiple concurrent IAM projects, meeting key milestones and delivering required documentation
• Communicate effectively with technical and executive stakeholders
• Scripting skills in Python, PowerShell, or Groovy are highly desired for automation
• Candidate must commit exclusively to this contract for its duration

About the Company

A growing consulting firm is looking to hire a Databricks Data Engineer to join their delivery team supporting enterprise clients building modern data platforms. This is a hands-on engineering role working closely with architects, stakeholders, and data teams to design and implement scalable data solutions using Databricks and cloud technologies. The role is Hybrid in Herndon, Virginia, working as part of a collaborative consulting environment delivering high-impact data platform projects.

About the Role

This role involves working closely with various teams to design and implement scalable data solutions.

Responsibilities

• Design, build, and maintain data pipelines and ETL/ELT processes using Databricks
• Develop scalable data solutions leveraging the Databricks Lakehouse platform
• Work with architects and senior engineers to implement modern cloud data platforms
• Optimize data processing performance and ensure high data quality standards
• Support ingestion and transformation of large-scale structured and unstructured datasets
• Collaborate with client stakeholders and cross-functional teams in a consulting delivery environment
• Follow best practices for data engineering, version control, testing, and deployment

Qualifications

• Hands-on experience working with Databricks in production environments

Required Skills

• Strong programming skills in Python, PySpark, or Spark
• Experience building data pipelines and transformations within cloud data platforms
• Understanding of data modeling, distributed data processing, and data pipeline orchestration
• Experience working with modern data lake or Lakehouse architectures
• Strong communication skills and ability to work within client-facing environments

Preferred Skills

• Databricks Data Engineer Associate Certification
• Experience working within Azure, AWS, or GCP data ecosystems
• Familiarity with Delta Lake, Unity Catalog, or MLflow
• Previous experience working in consulting or professional services environments

Job: Data Canter Design/Construction Manager

Duration: 12 Months

Location : Herndon, VA- onsite

Client- Tech Giant

Job Description:

Data Center Design Engineering Manager in Construction

Position Overview:

Infrastructure Services seeks a Data Center Design Engineering Manager to oversee and manage design engineering services during the construction phase of data center projects. This role is crucial in maintaining design integrity and ensuring seamless coordination between design and construction teams throughout project execution.

Key Responsibilities:

• Lead and manage design engineering services during construction phase, including technical review of RFIs, submittals, and design clarifications with focus on response quality and SLA compliance

• Conduct site visits/inspections to verify design compliance and attend urgent meetings within AMER region to resolve critical design-construction issues

• Lead technical discussions in OAC meetings, reviewing Procore RFI/submittal logs and providing decisive design guidance to construction challenges

• Direct and coordinate design teams (AOR, EORs) by establishing clear priorities, deadlines, and accountability measures to meet critical construction milestones

• Maintain and coordinate comprehensive design documentation through Procore/Smartsheet, including models, reports, and drawings to QAE for proper uploads

• Review and validate design changes during construction for compliance with standards and requirements, coordinating modifications with Design Phase Manager to maintain design integrity

• Coordinate and lead site punch walks with all disciplines, ensuring proper documentation and distribution to stakeholders

• Monitor and ensure design team's compliance with review SLAs for Construction RFIs and Submittals

• Ensure project closeout documentation including record drawings, lessons learned logs, field reports, and AHJ certificates are properly archived in Workdocs and Procore

• Proactively identify, assess, and escalate design-related risks to leadership, providing recommended solutions to address schedule or quality impacts

• Drive timely resolution of design-related construction issues through effective team coordination and decision-making to maintain project schedule

Required Qualifications:

• Bachelor's degree in engineering, Architecture, or related field

• 7+ years of experience in end-to-end data center design lifecycle, from concept through construction completion

• Demonstrated experience managing design teams during construction phase

• Strong understanding of construction administration processes and documentation

• Proven track record of successful project delivery in mission-critical facilities

• Experience with construction management software (Procore, Smartsheet)

• Excellent communication and problem-solving skills

• Ability to travel within AMER region as needed

Candidate Requirements

Top 3 Must Have Hard Skills

• Responsible for the coordination and completion of project/program. Oversee all aspects of projects/program.

• Managing all aspects of project execution including design development and construction administration processes as well as expertise in implementing and optimizing project management platforms such as Smartsheet's, Procore etc. will be beneficial.

• Sets deadlines, assigns responsibilities, and monitors and summarizes progress of project/program.

• Prepares reports for upper management regarding status of project/program. Familiar with a variety of field concepts, practices, and procedures.

• Rely on extensive experience and judgment to plan and accomplish goals. Performs a variety of tasks.

• Leads and directs the work of others.

• A wide degree of creativity and latitude is expected. Typically reports to a manager or head of a unit/department.

Nice to haves

1 - What is the top 3 skills required for this role?

a. Project Design and Construction Lifecycle Management expertise (end-to-end project execution and oversight)

b. Team Management and Coordination (directing cross-functional teams and stakeholder management)

c. Technical Proficiency (specifically in project management tools like Smartsheet's, Procore, and construction/design development processes)

2 - What are skills required for resume stand out?

a. Quantifiable project success metrics (design development, construction administration, project close out, budgeting, risk management, etc.)

b. Demonstrated experience with multiple project management platforms/tools,

c. Advanced construction administration experience

d. History of progressive responsibility in project manager and coordination

e. Experience in strategic decision-making at organizational level

f. Evidence of team development and mentoring capabilities

g. Experience in project reporting to direct managers and leadership

TITLE: Project Manager

LOCATION: Chantilly, VA

CLEARANCE REQUIRED: Active DoD TS/SCI with CI Polygraph

EMPLOYMENT TYPE: Full-time, On-site

POSITION SUMMARY

Modern Government Solutions (MGS) is seeking a Cleared Project Manager to support a commercial Agentic AI software company implementing high-visibility national security space programs. This role will oversee the execution of complex, technically driven initiatives involving cloud-native platforms, AI-enabled mission systems, and secure software delivery within classified environments. The ideal candidate brings experience managing engineering teams supporting secure AWS/GovCloud infrastructure, DevSecOps environments, and space system mission management /command-and-control programs. This individual will serve as the operational bridge between engineering, stakeholders, and leadership to ensure programs are delivered on time, within scope, and aligned with mission objectives.

RESPONSIBILITIES (not limited to):

• Lead day-to-day program execution and customer delivery for classified, cloud-based and mission-support systems.
• Manage project scope, schedule, deliverables, and risk across cross-functional engineering teams.
• Coordinate closely with DevOps, platform, AI/ML, and software engineering teams supporting secure AWS and Kubernetes environments to facilitate Agile ceremonies and drive accountability across sprint cycles and release milestones.
• Identify and mitigate program risks, escalating critical issues to leadership as needed.
• Develop and maintain project plans, status reports, and executive-level briefings.
• Interface directly with government stakeholders, ensuring program alignment with mission requirements, contract scope and security constraints.
• Coordinate with engineering team members to ensure compliance with classified environment protocols and security standards.
• Support resource planning, staffing coordination, and long-term roadmap development.

REQUIRED SKILLS AND QUALIFICATIONS

• Must possess an active Department of Defense TS/SCI with CI Polygraph clearance.
• Bachelor's degree in Engineering, Computer Science, Business, or related field (or equivalent experience).
• 5+ years of experience managing technical programs in classified or federal environments.
• Experience supporting cloud-based or DevSecOps-driven programs (AWS C2E or other regulated cloud environments, Kubernetes, CI/CD environments).
• Experience managing projects with Agile methodologies and modern software development lifecycles.
• Demonstrated ability to manage cross-functional technical teams.
• Experience interfacing with government customers in classified settings.
• Strong risk management, stakeholder communication, and executive reporting skills.

PREFERED SKILLS AND QUALIFICATIONS

• Experience supporting national security space, command & control, or space mission management systems.
• Familiarity with AI/ML-enabled mission platforms or advanced analytics systems.
• PMP, PMI-ACP, SAFe, or equivalent certification.
• Prior experience working with or supporting NRO, DoD, or IC customers.

*Applicants selected will be United States citizens and may be subject to a government security investigation for access to classified information*

ABOUT US

At MGS, we believe a people-first culture corresponds to organizational success through a commitment to excellence, integrity, inclusion, and an attitude that welcomes challenges meets demands, sustains growth, and drives innovation. We provide expert mission-first technical and programmatic services and solutions for the US intelligence community, the US Department of Defense, and other governmental agencies. We create people-first organizational cultures where employees feel needed in the system, not a system that needs employees. We provide you with long-term career opportunities centrally focused on our core value system: inclusion, integrity, and a commitment to excellence.

MGS is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status, and will not be discriminated against on the basis of disability.

About Suffolk

Suffolk is a national enterprise that builds, innovates, and invests. We provide value across the entire project lifecycle through our core construction management services and complementary business lines in real estate investment, design, self-perform construction, and technology start-up investment (Suffolk Technologies). By integrating data, artificial intelligence, and advanced technology through our Seamless Platform, we connect design, construction, and operations to deliver smarter, more predictable results and redefine how America builds.

Suffolk – America’s Contractor – is a national company with more than $8 billion in annual revenue, 3,000 employees, and 17 offices, including Boston (headquarters), New York City, Miami, West Palm Beach, Tampa, Estero, Dallas, Los Angeles, San Francisco, San Diego, Las Vegas, Herndon, U.S. Virgin Islands, and other key markets. Suffolk manages some of the most complex and transformative projects in the country, serving clients across healthcare, life sciences, education, gaming, aviation, transportation, government, mission critical, and commercial sectors. Suffolk is privately held and is led by founder, chairman and CEO John Fish. Suffolk is ranked #8 on ENR’s list of “Top CM-at-Risk Contractors.” For more information, visit and follow Suffolk on Facebook, Twitter, LinkedIn, YouTube, and Instagram.

At Suffolk, we believe that our total rewards program should offer you and your family the support you need when it matters most. That’s why we have created a program that provides employees with access to a wide variety of options that can be personalized to support you and your loved ones physically, emotionally, and financially.

Benefits include, competitive salaries, auto allowances and gas cards for certain roles, access to market leading medical and emotional and mental health benefits, dental, and vision insurance plans, virtual care options for physical therapy and primary care, generous paid time off, 401k plan with employer match and access to expert financial resources, company paid and voluntary life insurance, tax deferred savings accounts, 10 backup daycare days each year, short- and long-term disability, commuter benefits and more. For more information, click here.

The Digital Engineering Group promotes a holistic approach to design and construction model-based services and technologies. The group defines the company strategy around the use of BIMs, data integration across models and departments, and cultural change across project teams to realize significant risk reduction on construction cost and schedule.

Leveraging the design, engineering, and construction knowledge of Suffolk and Suffolk Design, the Digital Engineering Team is charged with executing Virtual Design & Construction, Plan + Control, and creating innovative solutions in tech and process to ensure Suffolk is the best contractor in every region it operates.

This position supports Digital Engineering, Virtual Design & Construction, and Plan + Control for Suffolk’s Mission Critical business. Executing these services on one or more Suffolk projects is the prime responsibility of this role.

The VDC Engineer supports Digital Engineering, Virtual Design & Construction, and Plan + Control for Suffolk’s Mission Critical business. Executing these services on one or more Suffolk projects is the prime responsibility of this role.

Responsibilities

• Support the successful delivery of Digital Engineering, Virtual Design & Construction, and Plan + Control for Suffolk’s Mission Critical business.
• Demonstrate an ability to meet project specific deadlines for both the team and the individual
• Laser Scanning & Registration - perform field-based capture of 3D spatial point cloud data using laser scanners for use in existing conditions BIM development and the construction QA/QC
• Surveying - perform field-based project control using Total Stations to maintain accuracies in the laser scanning and photogrammetry processes; perform QA/QC and layout on various construction projects
• Photogrammetry - perform field-based drone photography and 3D photogrammetry data capture. Requires successful passing of the FAA Part 107 UAS Operator Exam
• Applicants must be able to perform the physical requirements of the position which may include:
• Lifting of equipment (10-25 pounds)
• Occasional confined space work
• Extended periods of standing
• Exposure to outdoor elements (cold, rain, snow, heat)
• Occasional extended travel (typically less than 2 weeks) as needed by workload
• Develop 3D, 4D, and 5D models for site safety & logistics plans and trade coordination.
• Support Plan + Control management and delivery, ensuring successful project team experiences with all approved 3rd party vendors.
• Provide training and support of software and tools to project teams.
• Proactively develop and maintain relationships with new and existing project teams.

Qualifications

• 4-year degree in an accredited industry related curriculum.
• 1-5 years of VDC related design and/or construction experience.
• Ability to read and understand contract documents and drawings, to navigate 3d models, and to identify different building systems.
• Competency with the following applications: Procore, Autodesk Suite, Microsoft Office, and Bluebeam at a minimum.

Necessary Attributes:

• Maintains high service levels even when working under pressure.
• Excellent oral and written communication and interpersonal skills.
• Resourceful with strong problem-solving and troubleshooting skills.
• Ability to work independently as well as a collaborative partner on a team.
• Highly organized and detail oriented; able to prioritize and multi-task.
• Monitors delivery; identifying, managing, or escalating potential risks.
• Maintains responsibility for day-to-day interaction and relationships with all project stakeholders.

Working Conditions

While performing the duties of this job, the employee is regularly required to sit for long periods of time; talk or hear; perform fine motor, hand and finger skills in the use of a keyboard, telephone, or writing. The employee is frequently required to stand; walk; and reach with arms and/or hands. Specific vision abilities include close vision, distance vision, depth perception and the ability to adjust focus. The employee will spend their time in an office environment with a quiet to moderate noise level.

EEO Statement

While performing the duties of this job, the employee is regularly required to sit for long periods of time; talk or hear; perform fine motor, hand and finger skills in the use of a keyboard, telephone, or writing. The employee is frequently required to stands; walk; and reach with arms and/or hands. Specific vision abilities include close vision, distance vision, depth perception and the ability to adjust focus. The employee will spend their time in an office environment with a quiet to moderate noise level. Job site walking. Suffolk provides equal employment opportunities to all employees and applicants for employment without regard to race, color, religion, sex, sexual orientation, pregnancy or maternity, national origin, citizenship, genetic information, disability, protected veteran, gender identity, age or any other status protected by law. This policy applies to recruiting, hiring, transfers, promotions, terminations, compensation, benefits, and all other terms and conditions of employment. Suffolk will not tolerate any unlawful discrimination toward, or harassment of, applicants or employees by anyone at Suffolk, or anyone working on behalf of Suffolk