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.