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Sr Mainframe Developer

Olney,MD

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634 Sr Mainframe Developer jobs in Olney,MD

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Senior DevOps Engineer

Leidos

Gaithersburg, MD 20879

Hybrid~ 19 minPaid Time OffRetirement Benefit

  • Typically requires a BS in Information Systems, Information Technology, Computer Science or closely related discipline and 8+ years of prior relevant experience or Masters with 6+ years of prior relevant experience
  • Must possess an active Top Secret Security Clearance with SCI eligibility, and ability to obtain a Polygraph after hire
  • Must be a U.S. Citizen
  • Proactive self-starter demonstrating a positive, willing attitude and excellent oral and written communication skills.
  • Understanding of custom code development/reviews
  • Experience with GITLAB functionality, error codes and scripting
  • Experience using AWS services/technologies (e.g. CloudFormation, S3, ECS, EKS)
  • Experience with AWS Serverless architectures (lambda, API gateway, load balancing, autoscaling)
  • Experience supporting development testing
  • Experience with cloud-based architectures
  • Understanding of DevSecOps methodologies and workflow
  • Experience developing and managing CI/CD pipelines
  • Knowledge of SW Development and SW Sustainment Practices
  • Team Collaboration tools (Jira, Confluence)
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Senior Front-End Developer - TS/SCI Clearance Required

Maximus

Fort Meade, MD 20755

OnsiteHealth InsurancePaid Time OffRetirement Benefit

  • TS/SCI Clearance Required
  • Active TS/SCI clearance is required.
  • Must be able to report on-site in Ft Meade, MD up to five days per week based on customer requirements.
  • Bachelor's degree in related field required.
  • A Master's degree may substitute for 2 years of experience.
  • 10 years of experience in the functional area.
  • 10 years of software development experience in object-oriented and scripted languages with the ability to apply tool suites related to DevSecOps, microservices and containers.
  • 5 years of recent and relevant experience performing front-end web design and development.
  • 5 years of experience with bug tracking software (e.g., Jira).
  • 5 years of experience testing web-based applications.
  • 5 years of experience leading software development programs/projects.
  • Practical experience developing in a cloud environment.
  • 5 years of experience with Jenkins and GitLab.
  • 5 years of experience with at least five (5) of the following: Apache, Ember, JavaScript, Jaguar, Java, Cricket, Node.
  • Demonstrated experience engaging in agile, user-centric application design, ensuring best-of-breed UI/UX standards.
  • Demonstrated experience in preparing, conducting, and documenting various systems tests and results to verify system operability and compliance with project standards and requirements.
  • Demonstrated experience in generating system wireframes, mockups, etc. considering multiple user personas.
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Senior Back End Developer

Maximus

Fort Meade, MD 20755

OnsiteHealth InsurancePaid Time OffRetirement Benefit

  • Active TS/SCI clearance is required.
  • Must be able to report on-site in Ft Meade, MD up to five days per week based on customer requirements.
  • Bachelor's degree in related field required.
  • A Master's degree may substitute for 2 years of experience.
  • 10 years of software development experience in object-oriented and scripted languages with the ability to apply several tool suites related to DevSecOps, microservices and containers.
  • 5 years of experience performing back-end web design and development.
  • 10 years of experience in relational databases, RESTful API development and integration.
  • 5 years of experience in Python and PostgreSQL.
  • 5 years of experience with bug tracking software (e.g., Jira).
  • 5 years of experience testing web-based applications.
  • 5 years of experience leading software development programs or projects.
  • 3 years of experience with the following: AWS Infrastructure, Kubernetes, and RedHat Linux.
  • 5 years of experience with at least five (5) of the following:
  • Postgress
  • RDS
  • Exodus
  • Python
  • Luna
  • Java
  • Docker
  • OpenJDK
  • Ansible
  • Packer
  • Maven
  • Kubernetes
  • Red Hat
  • Demonstrated experience in preparing, conducting, and documenting various systems tests and results to verify system operability and compliance with project standards and requirements.
  • Practical experience developing in a cloud environment.
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Senior Real Estate Development Manager, AWS Infrastructure Services

Amazon Data Services

Arlington, VA 22203

~ 47 min OnsiteHealth InsurancePaid Time OffRetirement Benefit

  • 8+ years of experience in large-scale site selection, real estate land acquisitions and lease negotiations
  • 5+ years experience performing the full range of land entitlement functions leveraging a combination of internal and external resources
  • 5+ years experience in site due diligence, site development, and negotiation of entitlement agreements for large complex projects.
  • Bachelor's Degree in Urban Planning, Architecture, Civil Engineering, Real Estate or related fields.
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Sr. Director of Construction and Facilities

Collington a Kendall Affiliate

Bowie, MD 20721

$165,000-$175,000/yr
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Sr. Quality Control Engineer, Integrated Project Quality (IPQ)

Amazon Data Services

Herndon, VA 20170

~ 49 min OnsiteUrgently HiringHealth InsurancePaid Time OffRetirement Benefit

  • Travel up to 80% of the time
  • Bachelor's degree in Mechanical Engineering or equivalent work experience
  • 8+ years' experience in mechanical quality control/quality assurance of data centers or critical infrastructure
  • Hands-on experience with mechanical construction processes, HVAC systems, and quality control execution. Knowledge of mechanical industry standards (ASHRAE, ASME, SMACNA, IMC) and quality control methodologies
  • Experience managing vendors, contractors, or technical teams
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Senior Associate - Infrastructure, Capital Projects & Climate Advisory (Project/Program Development & Finance)

KPMG

Washington, DC 20011

~ 41 min Onsite

  • Minimum two years of recent experience in relevant project finance, advisory, or development roles
  • Bachelor's degree from an accredited college or university in business, finance, engineering, or a related field is required
  • Experience with financial modeling or econometric modeling
  • Willingness and ability to travel
  • Applicants must be authorized to work in the U.S. without the need for employment-based visa sponsorship now or in the future; KPMG LLP will not sponsor applicants for U.S. work visa status for this opportunity (no sponsorship is available for H-1B, L-1, TN, O-1, E-3, H-1B1, F-1, J-1, OPT, CPT or any other employment-based visa)
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Senior Backend Developer, Data Platform (TS/SCI with CI Poly)

Vantor

Reston, VA 20190

$182,000-$200,200/yr
Hybrid~ 46 minEducation AssistanceHealth InsuranceRetirement Benefit

  • To be eligible for this position, you mustbe a U.S. Citizen.
  • This position requires an active U.S. Government Security Clearance at the TS/SCI level with CI polygraph.
  • _Export Control/ITAR:_ Certain roles may be subject to U.S. export control laws, requiring U.S. person status as defined by 8 U.S.C. 1324b(a)(3).
  • Current/active TS/SCI with a current CI polygraph.
  • 10\+ years of professional software engineering experience, with strong backend development skills
  • Strong proficiency in Python
  • Experience building backend systems, APIs, or distributed services in production environments
  • PostgreSQL and Elasticsearch proficiency
  • Familiarity with AWS, especially S3, RDS, and other data centric services
  • Bachelor's degree in a related field, e.g. Computer Science, Systems Engineering or equivalent experience
  • Understanding of software engineering fundamentals including testing, version control, CI/CD, and system design
  • Tenacious troubleshooting, problem solving and error fixing mentality
  • Strong communication and collaboration skills, ability to work, collaborate and thrive on a small technical team.
  • Current/active TS/SCI with a current CI polygraph or be willing and able to obtain a CI polygraph.
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Sr. Software Engineer TS/SCI Polygraph

Leidos

Annapolis Junction, MD 20701

~ 28 min OnsitePaid Time OffRetirement Benefit

  • Must have an active TS/SCI Polygraph up front. No exceptions.
  • Must have a BS degree and 12 – 15 years of prior relevant experience or Masters with 10 – 13 years of prior relevant experience. Additional experience may be substituted for a degree.
  • Must have demonstrated experience with Java.
  • Must have experience or familiarity with multiple Java frameworks: Spring to include Boot and Data, Java Enterprise Edition (JEE) (i.e., JPA, EJB, JTA, Servlet), Jackson, Jersey, Swing, JavaFX.
  • Must have experience or familiarity with multiple of the following languages such as Javascript, Python, C/C++, Groovy, Structured Query Language (SQL).
  • Must have experience with development IDEs (Integrated Development Environments) such as Eclipse, Visual Studio Code, Visual Studio, Rhapsody, WebStorm.
  • Must have experience with databases such as Oracle, PostgreSQL, MongoDB, SQL Server.
  • Must have experience with Web Application User Interface Development, knowledge of databases and structures, Spring Framework, and/or experience working with AngularJS, JSON, HTML, XML, XSLT.
  • Must have experience with software source control and configuration management tools.
  • Must have experience with technologies underlying cryptographic systems (symmetric and asymmetric cryptography, ASN.1 encoding, XML canonicalization, digital signatures).
  • Must have experience developing on Windows, and/or Linux operating systems.
  • Must have documented professional experience with web services.
  • Must have a strong understanding of sound software development principles and practices.
  • Must be able to plan and prioritize personal tasking and be able to communicate effectively verbally and in writing.
  • Must be an independent thinker, capable of performing high quality work, both independently and with a team in a fast-moving environment.
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New, Posted 4 hours ago
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Senior Manager, AI Engineering (People Leader) (Gen AI Platform Services)

Capital One

Mc Lean, VA 22101

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