Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Software Engineer Level 4

Base2 Solutions

Software Engineer Level 4

Base-2 Solutions is seeking a Software Engineer Level 4 to develop, maintain, and enhance complex and diverse software systems supporting mission-focused environments. This role is centered on backend development, data engineering, and API development, with emphasis on building scalable systems using Python and FastAPI, designing and managing PostgreSQL databases, and supporting high-performance integrations across high-speed, high-volume, mission-critical, data-sensitive systems.

Essential Duties and Responsibilities
  • Develop, maintain, and enhance complex and diverse software systems, including processing-intensive analytics, novel algorithm development, manipulation of extremely large data sets, real-time systems, and business management information systems, based upon documented requirements.
  • Provide specific input to software component design, including hardware/software trade-offs, software reuse, use of COTS/GOTS in place of new development, and requirements analysis and synthesis from the system level to individual software components.
  • Design, implement, and integrate software applications or perform software engineering tasks.
  • Utilize software engineering and design methodologies appropriate to the development, integration, and production environment.
  • Ensure efficient delivery of software engineering capabilities using industry standards and repeatable processes.
  • Mitigate risks, control costs and schedule variance, and effectively manage large-scale, integrated software projects.
  • Review and test software components for adherence to design requirements and document test results.
Required Qualifications
  • Active TS/SCI with CI Polygraph.
  • Demonstrated experience as a backend developer.
  • Demonstrated experience in data engineering and API development.
  • Experience building scalable systems with Python and FastAPI.
  • Experience designing and managing PostgreSQL databases with efficient SQL and indexing strategies.
  • Proficiency in Python.
  • Proficiency in FastAPI.
  • Proficiency in PostgreSQL.
  • Proficiency in Elasticsearch.
  • Experience building high-performance API connections between high-speed, high-volume, mission-critical, data-sensitive systems.
Preferred Qualifications
  • Experience supporting processing-intensive analytics environments.
  • Experience working with extremely large data sets.
  • Experience supporting real-time systems.
  • Experience contributing to software design decisions involving software reuse, COTS/GOTS, and system-to-component requirements analysis.
Required Education and Experience Equivalency
Required Certifications
  • None specified.
Required Security Clearance
  • Active TS/SCI with CI Polygraph.
Vacancy posted 4 hours ago
Similar jobs that could be interesting for youBased on the Software Engineer Level 4 in Annapolis Junction, MD vacancy
  •  ...Please do not apply if you do not currently possess this level of clearance. Telework: None Basic Requirements: ~14 years of experience as a software engineer ~ Bachelor's degree in a technical discipline ~4 additional years of experience as a software... 
    Suggested
    Immediate start
    Remote work

    Shield Consulting Solutions

    Annapolis Junction, MD
    4 hours ago
  • Full-Time | On-Site | TS/SCI with Full-Scope Polygraph Required Position Overview We are seeking a junior level Software Engineer with a minimum of 4+ years of expertise and a technical Bachelor’s degree to join our team in Annapolis Junction, MD. Responsibilities Analyze... 
    Suggested
    Full time

    HoogaNet

    Jessup, MD
    4 days ago
  • $198.09k - $223.09k

     ...leading edge technologies to access data across many different software platforms, computing environments, and employ multiple software...  ...relies on several different factors including, but not limited to: level of position, complexity of job responsibilities, geographic... 
    Suggested
    Full time
    Contract work
    Work experience placement
    Local area

    IntelliGenesis

    Annapolis Junction, MD
    more than 2 months ago
  •  ...enhances complex and diverse software systems (e.g., processing-intensive...  ...and synthesis from system level to individual software components...  ...university is required. Four (4) years of additional SWE...  ..., confer with users or system engineers; analyze systems flow, data usage... 
    Suggested
    Contract work
    Work experience placement
    Local area

    IntelliGenesis LLC

    Annapolis Junction, MD
    3 days ago
  •  ...Software Engineer Level 2 Jovian Concepts, LLC is looking to hire a Software Engineer Level 2 for a great opportunity in the Annapolis Junction...  ...from an accredited college or university is required. Four (4) years of additional SWE experience on projects with similar... 
    Suggested

    Navstar

    Annapolis Junction, MD
    21 hours ago
  •  ...Software Engineer Level 1 Jovian Concepts, LLC is looking to hire a Software Engineer Level 1 for a great opportunity in the Annapolis Junction...  ...from an accredited college or university is required. Four (4) years of additional SWE experience on projects with similar... 

    Navstar

    Annapolis Junction, MD
    3 hours ago
  •  ...Software Engineer Level 1 TAP Engineering is seeking a Software Engineer Level 1 to support research, development, and prototyping efforts in...  ...Bachelor's degree in Computer Science or a related field, or 4 additional years of relevant experience in lieu of a degree... 
    Temporary work
    Flexible hours

    TAP Engineering LLC

    Laurel, MD
    2 days ago
  •  ...Tools Behind the Mission: Join us as a  CNO Software Engineer!  Don't just write code—build the...  ...Troubleshooting and resolving complex system-level issues across distributed environments...  ...or related discipline ~ Four (4) years of additional SWE experience may... 

    Adaptic

    Annapolis Junction, MD
    4 days ago
  • $76.14k - $184.03k

     ...Software Engineer Responsibilities: Ability to develop, maintain, and enhance complex and diverse...  ...analysis and synthesis from system level to individual software components. Communicate...  ...or university is required. Four (4) years of additional SWE experience on... 
    Contract work
    Work experience placement
    Local area

    IntelliGenesis LLC

    Annapolis Junction, MD
    4 hours ago
  •  ...Software Engineer Level 3 As a Software Engineer Level 3 at CyberPoint, you will lead the design, development and evolution of complex software...  ...discipline from an accredited college or university OR Four (4) additional years of Software Engineering experience may be... 
    For contractors
    Local area

    Navstar

    Annapolis Junction, MD
    22 hours ago
  •  ...Software Engineer Level 2 Location Annapolis Junction, MD Job Code 2284 of Openings 1 Apply Now ( DCCA is a veteran-owned IT business...  ...from an accredited college or university is required. Four (4) years of additional SWE experience on projects with similar... 
    Flexible hours

    DCCA

    Annapolis Junction, MD
    2 days ago
  • $115k - $190k

     ...Please do not apply if you currently do not possess this level of clearance. Are you a Mid-Level Software Engineer who is ready for a new challenge that will launch...  ...college or university is required. Four (4) years of additional SWE experience on projects with... 
    16 hours
    Full time
    Contract work
    Remote work
    Work from home
    Relocation package

    GliaCell Technologies LLC

    Annapolis Junction, MD
    4 days ago
  • $70k - $190k

     ...and a finalist in 2021! Belay Technologies is seeking a Mid-level Software Engineer to join our intel team. We are seeking a React Software...  ...Node, Angular) Perks and Benefits: ~8 weeks paid leave - 4 weeks of personal leave, 3 Yay! days, take off on your birthday... 
    Contract work
    Work experience placement
    Remote work
    Monday to Friday
    Flexible hours
    1 day per week

    Belay Technologies

    Laurel, MD
    3 days ago
  •  ...collaboration with other senior engineers for the development of...  ...Program is seeking a full stack software engineer to develop, maintain...  ...Validation, Smoke Test, and System Level Test (SLT) prior to deploying...  ...university is required. Four (4) years of additional SWE... 

    Lockheed Martin

    Annapolis Junction, MD
    22 hours ago
  • $195.5k - $264.5k

     ...Req ID: RQ222700 Type of Requisition: Regular Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Software Engineering Skills: CI/CD,Linux,Python (Programming Language),Unix Shell Experience... 
    Temporary work
    Immediate start
    Worldwide
    Flexible hours

    General Dynamics Information Technology

    Annapolis Junction, MD
    4 hours ago
  •  ...Software Engineer, Level 0 GTSC seeks a Software Engineer, Level 0. Location: Hanover, MD All work is on-site. This is not a hybrid or remote position...  ...with polygraph. Certifications: None. Requirements: Four (4) years of SWE experience on projects with similar software... 
    Full time
    Temporary work

    GTSC Talent Solutions (a GTSC Company)

    Hanover, MD
    3 hours ago
  •  ...Software Engineer Location: Annapolis Junction, MD Required Clearance: TS/SCI w/ Full-Scope...  ...analysis and synthesis from the system level to individual software components....  ...experience is required. Alternatively, four (4) years of Software Engineering (SWE) experience... 
    Relocation package
    Flexible hours

    Fullscope

    Linthicum Heights, MD
    3 days ago
  • $7.5k

     ...talented individuals who provide intelligence, engineering, and mission management expertise for...  ...us! Job Description: The Senior Software Engineer will serve as technical anchor...  ...delivery through the lifecycle. The Level 4 Software Engineer shall possess the following... 
    Work experience placement
    Immediate start
    Flexible hours

    RealmOne

    Columbia, MD
    1 day ago
  •  ...Software Engineer (Mid-Senior Level) We are seeking a mid-senior level Software Engineer with a minimum of 6+ years of expertise and a technical Bachelor...  ...s degree in a technical discipline (ability to substitute 4 years with experience) IAT Level II certification (as... 
    Immediate start

    Staffed4U

    Annapolis Junction, MD
    3 hours ago
  • $3,000 per month

     ...education and experience as well as the resources of Lockheed Martin to keep the threats at bay. THE WORK As a Software Engineer - Senior Level you will be responsible for: • Developing, maintaining, and enhancing complex and diverse software systems (e.g.,... 
    Full time
    Temporary work
    Work experience placement
    Work at office
    Flexible hours

    Lockheed Martin Corporation

    Annapolis Junction, MD
    2 days ago
  • $115k - $190k

     ...you currently do not possess this level of clearance. Are you a Mid-Level Systems Engineer who is ready for a new challenge...  ...GliaCell Technologies focuses on Software & System Engineering in Enterprise...  ...university is required. Four (4) years of additional SWE... 
    Full time
    Contract work
    Remote work
    Work from home
    Relocation package

    GliaCell Technologies LLC

    Annapolis Junction, MD
    1 day ago
  •  ...Job Summary The Splunk Software Engineer (SWE) designs, develops, maintains, enhances and documents...  .... Depending upon the role and skill level, the Splunk Engineer may perform all or...  ...current TS.SCI w FSP through MD The Level 4 Splunk Software Engineer shall possess... 

    Lentech

    Laurel, MD
    3 days ago
  •  ...Tools Behind the Mission: Join us as a  CNO Software Engineer!  Don't just write code—build the...  ...and software design, including component-level development and integration ~ Supporting...  ...or related discipline ~ Four (4) years of additional software engineering... 
    Part time
    Immediate start

    Adaptic

    Annapolis Junction, MD
    20 days ago
  • $86.5k - $92.8k

     ...Description Job Description AEITS, a GTSC company, seeks a Software Engineer Level 0. ~~~ This position pending contract award ~~~ Location:...  ...Science, Software Engineering, or related discipline. ~4 years of experience as a Software Engineer on projects with... 
    Full time
    Contract work
    Temporary work
    Local area

    Advantage Engineering & IT Solutions Inc

    Annapolis Junction, MD
    4 days ago
  •  ...Description Description: The role of Software Engineer includes developing, maintaining, and enhancing...  ...NiFi Qualifications: - All levels of professional experience as a SWE. -...  ...college or university is required. Four (4) years of additional SWE experience may... 

    Wrenchio LLC

    Laurel, MD
    18 days ago
  • $76.5k - $134.9k

     ...Software Engineer - Level 2 | Lockheed Martin As a part of the Systems Engineering Integration and Test Team (SEIT), you will immediately impact the business with your ingenuity, creativity, and ideas that will be the catalyst for future business and support the continued... 
    Full time
    Temporary work
    Work experience placement
    Immediate start
    Flexible hours

    Lockheed Martin Corporation

    Annapolis Junction, MD
    22 hours ago
  • $160k - $180k

     ...Software Engineer Level 1 Location US-MD-Annapolis Junction ID 2026-8409 Category Information Technology Position Type Full-Time Remote No Clearance Level TS/SCI FS Poly Description Markon is... 
    Full time
    Temporary work
    Remote work
    Flexible hours

    Markon Solutions

    Annapolis Junction, MD
    22 hours ago
  •  ...Software Engineer Level 2 Base-2 Solutions is seeking a Software Engineer Level 2 to support the VISTA (SRE Team). This role focuses on developing, maintaining, and enhancing complex software systems and infrastructure-driven software solutions in support of mission... 

    Base2 Solutions

    Annapolis Junction, MD
    21 hours ago
  •  ...About the job Software Engineer Level 3 Company Overview Invictus Strategy & Solutions is a Service-Disabled Veteran Owned Small Business providing strategic workforce solutions to mission critical government and commercial operations. From cleared federal... 
    Full time
    Temporary work

    Invitus Strategy Solutions LLC

    Jessup, MD
    2 days ago
  •  ...Software Engineer Opportunity We are on several winning teams...Come join us! Our work environment...  ...for the best and brightest senior level software engineers having 20 or more years...  ...type, and complexity is required. Four (4) years of additional SWE experience for... 
    Immediate start
    Remote work

    DUIT

    Columbia, MD
    21 hours ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Software Engineer Level 4. Be the first to apply!