Senior Level 3 Support Engineer - Infra, Security & On-Call
FeatherShark
FeatherShark is seeking a Level 3 Support Engineer to join our in-person team at the Chesterfield, MO office. You will own complex infrastructure issues, including servers, routing, firewalls, VPNs, and security incidents, while automating tasks with PowerShell and Python. You will maintain the knowledge base, help set technology standards, and mentor Level 1 technicians. This role emphasizes top‑tier customer service and on‑call responsibilities. #J-18808-Ljbffr FeatherShark
Vacancy posted 5 days ago
Similar jobs that could be interesting for youBased on the Senior Level 3 Support Engineer - Infra, Security & On-Call in Chesterfield, MO vacancy
$80k - $90k
FeatherShark is looking for a Level 3 Support Engineer to join our growing team!... ...infrastructure, networking, and security troubleshooting we have, and... ...* Take your turn in our on-call rotation To qualify for... ..., with at least 2 at a senior or escalation level. MSP or...Level 3Full timeTemporary workWork at officeFeatherShark
Chesterfield, MOa month ago- ...Windows OS, web servers, and virtualization technologies. The position focuses on performance optimization, troubleshooting, and providing advanced support. Ideal candidates will also have a strong background in network security and Microsoft SQL Server. #J-18808-Ljbffr KCSSenior
- Gateway Studios LLC is seeking an experienced Audio Technician Level 3 to lead complex live sound and studio projects. You will oversee planning, setup, signal routing, and on‑site supervision of junior staff, ensuring flawless audio quality across events. The role emphasizes...SeniorLevel 3
- Barnes-Jewish Hospital in Sunset Hills, MO seeks a Senior RNFA for its outpatient surgery center opening 10/9/2026. The role supports surgeons as the first assistant, performing intraoperative tasks and contributing to a safe, efficient perioperative environment. The position...Senior
- ...Job Title: Senior Call Center Representative - Financial Services (Contract) Location: St... ...and technology. In this role, you will support branch associates by answering incoming... ...essential. Required Qualifications ~3+ years of call center experience ,...SeniorContract work
PEG Staffing
Des Peres, MO4 days ago - GreenArrow is seeking an experienced Accounts Receivable Manager to lead billing, collections, and receivables operations across its growing portfolio. You will partner with finance, operations, and project teams to improve cash flow and build a scalable AR function for...Senior
- ...Works Mechanisms Design Engineer (Senior or Experienced)Company... ...Design Engineer to support a Next Generation Cruise... ...emphasis on safety, security and reliability. The program... ...and Experience):(Level 4): 9 or more years' related... ...pay range:Level 3: $103,700 - $140,300Level...SeniorLevel 3Permanent employmentFull timeWork experience placementImmediate startRelocationVisa sponsorshipWork visaFlexible hoursShift work
$112.2k - $151.8k
Avionics Power Systems Engineer, Experienced or Senior LevelCompany:The... ...Provide production build support including build... ...ability to obtain a U.S. Security Clearance for which the... ...work statementLevel 3: typically 5 or more... ...equivalent qualifications.Level 3: Minimum 3 years of...SeniorLevel 3Permanent employmentFull timeWork experience placementInterim roleRelocationVisa sponsorshipWork visaFlexible hoursShift workDay shift$91.8k - $124.2k
Systems Engineer, Associate, Experienced and Senior LevelCompany:The Boeing CompanyBoeing... ...Defense, Space, and Security (BDS) is seeking... ...and Senior levels, to join our Systems... ...developing top talent in support of critical missions... ...qualifications.Experienced level 3: Typically, 5 or...SeniorLevel 3Permanent employmentFull timeContract workWork experience placementInterim roleRelocationVisa sponsorshipWork visaFlexible hoursShift work- Experienced or Senior Mechanical System Design... ...System Design Engineers to develop, maintain... .... Louis region and support current and emerging... ...Defense Space and Security(BDS).Positions will... ...Position Responsibilities:Level 3Develop, integrate... ...Sciences)Level 3: 5 or more years'...SeniorLevel 3Full timeWork experience placementInterim roleImmediate startRelocationVisa sponsorshipWork visaFlexible hoursShift work
- ...seeks an experienced Microsoft Dynamics 365 and Power Platform specialist to provide Tier 3 support across Dynamics 365 environments. You will troubleshoot incidents, manage security configurations, and partner with Microsoft Support as needed. The role emphasizes ITIL-...Senior
- ...initiatives and partner with cross-functional teams to deliver secure, scalable technology solutions. The role emphasizes... ...improvement, with responsibility for upgrades, DR planning, on-call support, and collaboration with help desk and #J-18808-Ljbffr ConceroSenior
$115.8k - $202.7k
...can make your mark as a Senior Enterprise Architect at... ...and influencing senior level management and key... ...or enterprise architect supporting a large insurance or brokerage... ...Within your first 3-12 months you will evaluate... ..., quality assurance, security, and service on-...SeniorMinimum wageLocal areaRemote workNight shiftMarsh LLC
Chesterfield, MO1 day ago$3,720 per week
...seeking a travel nurse RN CVOR Level I for a travel nursing job... ...times as needed M-F 3-4 Weekday and 1-2 Weekend call shifts per 6 week schedule... ...about what is available. Security and Parking: o North... ...professionals, corporate support professionals and executives...Level 3Permanent employmentTemporary workShift workNight shiftRotating shiftWeekend workWeekday workPrime Staffing
Manchester, MO3 days ago- BJC HealthCare seeks an experienced Senior RNFA for the Outpatient Surgery Center-Sunset Hills in Missouri. The role involves acting as... ...Bachelor's in Nursing. The position offers comprehensive benefits, no call, no holidays, or weekends, and a clear pathway through #J-18808...SeniorWeekend work
- MiTek is seeking a technical support professional to provide assistance for the MiTek Software Suite, including Structural Engineering, CAD, and Business Management applications. The role supports remote and hybrid work from the Chesterfield, MO area with some travel to...Remote job
- ...Senior Product Security Engineer The Senior Product Security Engineer is a deeply technical, hands-on engineering and architect-level role responsible for establishing and leading the Product Security... ...prompts, tool and function calling permissions, content filters, rate...Senior
CBIZ
Wildwood, MO3 days ago - ...Nursery Practitioner at Children 1st Clowne Nursery School to support our local community through high-quality early years education.... ...and inspired to learn in a caring team. The position requires a Level 3 Early Years qualification and experience with all age groups in...Level 3Local area
$120k - $160k
...Technology company, supports commercial and SMB... ...Solutions Consulting & Engineering Team and why join?... .... Microsoft Tier 3 Support (Dynamics... ...Dynamics 365 security & access configurations... ...units, teams, field-level security, and Entra... ...support operations. On-Call Availability:...Full timeContract workFlexible hoursShift work$35 per hour
...Job Description Job Description On-Call IT Field Technician – PC, Mac, POS and TV Mounting Location: Multiple U.S. Cities (Local, Onsite Support) Job Type: Independent Contractor (1099) Pay: $35 hour (on-site) Schedule: Flexible – You accept jobs based on...Hourly payFor contractorsLocal areaRemote workFlexible hours- ...76 billion in debt and equity capital to support North American infrastructure.Our Purpose... ...ensuring informed decision-making at all levels.Build, maintain, and adjust project timelines... ....Roll up your sleeves when the project calls for it — participate in the physical...SeniorWork at officeImmediate startRemote work
LS Power
Wildwood, MO2 days ago - ...Therapists to deliver one-on-one care to older adults in private residences and senior living communities. You will improve mobility, independence, and quality of life through the Geriatric House Calls model and manage your own treatment schedule. We offer autonomy, flexible...SeniorH1bVisa sponsorshipFlexible hours
$63k - $73k
...technical assistance to customers and internal users in support of complex Structural Engineering, CAD, and Business Management applications within the... ...issues by; Researching previous customer issues within call tracking system; Developing a method to isolate the variables...Temporary workWork at officeRemote workWorldwide3 days per weekMitek Inc
Chesterfield, MO4 days ago- A leading IT consulting firm is looking for an experienced Information Technology Project Manager to oversee high-budget projects throughout their lifecycle. This role involves managing complex projects, collaborating with cross-functional teams, and ensuring that business...SeniorHourly payContract work
- ...achieve individual sales goals to support the store's sales and profit... ...service, and take on other senior-level responsibilities within a... ...maintenance Maintain store security including: perimeter door... ...reasonable accommodation by calling 1?(***) ***-**** ext. 2862 or by...SeniorWork experience placementLocal area
Music & Arts
Chesterfield, MO6 hours ago - ...year . JOB GOAL The Multi-tiered System of Support (MTSS) School-Wide T2/3 Team Leader(s) works in coordination with the administration to secure a team with specific areas of expertise... ...demonstrate leadership at the building level Ability to work with others and...Level 3
- ...design and release quality across a multi-project portfolio. The role demands project management experience, exposure to mechanical engineering, and the ability to drive budgets and margins with full authority within approved plans. On-site work is required. #J-18808-...Senior
$60k - $80k
...success. Job Overview As a Systems Support Engineer at ATB Technologies, you will play a... ...individuals who are ready to operate beyond entry-level work and take ownership of more complex... ...and implement enhancements to secure connectivity and network security controls...Full timeFlexible hours3 days per weekATB Technologies
Chesterfield, MO1 day ago$102k - $120k
...Job Title Senior Project Manager, Project & Development Services... ...'s degree in Architecture, Engineering, Construction Management, Business... ...business. ~ Ability to support and/or lead business... ...Cushman & Wakefield, please call the ADA line at 1-888-365-540...SeniorMinimum wageContract workFor contractorsWork at officeFlexible hoursCushman & Wakefield
Chesterfield, MO4 days ago$60 - $65 per hour
...interdependencies, managing risks, executive level reporting, and executing on strategic... ...applications for new development and on‑going support, and direct the activities of all... ...Management Office and/or PMO delivery models Seniority Level Associate Employment Type...SeniorContract workWork experience placementFlexible hours
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Level 3 Support Engineer - Infra, Security & On-Call. Be the first to apply!
Related searches
- IT developer Chesterfield, MO
- IT support engineer Chesterfield, MO
- support engineer Chesterfield, MO
- lab support engineer Chesterfield, MO
- technical support engineer Chesterfield, MO
- line support engineer Chesterfield, MO
- customer support engineer Chesterfield, MO
- IT engineer Chesterfield, MO
- tech support engineer Chesterfield, MO
- senior network engineer remote Chesterfield, MO