Software Engineer Level 4
Base-2 Solutions
Position Details Required Security Clearance: Top Secret/SCI with CI Polygraph Location: Annapolis Junction, MD Work Type: On-Site Shift: First Requisition ID: 2645 Standard Title: Software Engineer Referral Eligibility: Eligible U.S. Citizenship Required: Yes Position Summary 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 High School Diploma/GED – 13 years of experience. Associates Degree – 11 years of experience. Bachelor’s Degree – 9 years of experience. Master’s Degree – 7 years of experience. PhD – 5 years of experience. Required Certifications None specified. Required Security Clearance Active TS/SCI with CI Polygraph. Pay & Benefit Highlights Compensation Competitive fixed salary or hourly pay (based on experience, skills, location, and internal equity). Employee referral bonuses up to $10,000 per hired referral. Additional bonus opportunities for exceptional performance and contributions to business development and company growth (role-dependent). Health 100% company‑paid medical premiums for employees and eligible dependents. Choose from multiple plan options with CareFirst, Kaiser, and UnitedHealthcare, including PPO, POS, HMO, and HSA‑compatible plans. 100% company‑paid dental premiums for employees and eligible dependents. 100% company‑paid vision premiums for employees and eligible dependents. Income Protection 100% company‑paid premiums for short‑term disability. 100% company‑paid premiums for long‑term disability. 100% company‑paid premiums for accidental death & dismemberment (AD&D). 100% company‑paid premiums for life insurance up to $200,000. Retirement 401(k) with immediate vesting: 4% company match plus a 4% non‑elective company contribution (8% total). 401(k) pre‑tax and Roth options. Leave Up to 20 days of flexible paid time off (PTO). 11 paid floating holidays. Work-Life Balance Flexible work schedules, including flex time and compressed work periods (contract and project‑dependent). #J-18808-Ljbffr Base-2 Solutions
$130k - $240k
Job Title: Software Engineer (Levels I - VI) Location(s): Annapolis Junction, Maryland Hours: Regular Full-Time Salary Range: $130k/yr - $240k/yr... ...Education: A Bachelor’s degree in a related discipline Four (4) years of experience may be substituted for a degree....SuggestedFull timeFlexible hours$89.5k - $111.5k
Software Engineer - Entry Level At Boeing, we innovate and collaborate to make the world a better place. We’re committed to fostering an environment for... ...an accredited college or university is required Four (4) years of additional SWE experience on projects with similar...SuggestedContract workRemote workWorldwideFlexible hours- ...qualified IT, architectural, system, and software engineering personnel. Requires TS/SCI with Poly... ...requirements analysis and synthesis from system level to individual software components.... ...college or university is required. Four (4) years of additional SWE experience on...SuggestedFull timeFor contractorsWork experience placementLocal area
- ...Position Summary Base-2 Solutions is seeking a Software Engineer Level 2 to support the VISTA (Inference Processing Team). This role develops, maintains... ...up to $200,000. Retirement 401(k) with immediate vesting: 4% company match plus a 4% non-elective company contribution (...SuggestedHourly payContract workTemporary workImmediate startFlexible hours
- ...currently seeking a Senior Systems Engineer to lead Information Assurance (IA) system, hardware, and software design efforts in support of... ...DoD 8570 compliance with IASAE Level I certification and a Computing... ..., and ongoing learning. With 4 weeks of PTO, 11 holidays, gifted...SuggestedContract workWork experience placementRemote work
$157k - $169k
AEITS, Inc. , a GTSC company, is growing its team! Seeking a Software Engineer Level 3 . Location: Annapolis Junction, MD All work is on-site. This... ...from an accredited college or university is required. Four (4) years of additional SWE experience on projects with similar...Full timeTemporary workLocal area$150k - $275k
...CNO Developer to enhance national security through advanced cyber capabilities. The role involves designing and delivering low-level software tools while collaborating with a talented team. Applicants should hold an active TS/SCI clearance and have strong skills in Python...Relocation package- Entry Level Software Engineer for DC Top Workplace 2014-2016! Full-time About Next Century We were founded as a direct result of the 9/11 attacks and provide solutions that integrate situational awareness, at a glance analysis, decision support, collaboration, and other...Full timeFlexible hoursNight shift
- A technology consulting firm is seeking an entry-level Software Engineer 1 focused on data management. Candidates should have a strong background in analytics development and experience with technologies such as Python, Java, and PySpark. This full-time position offers...Full time
$89.5k - $111.5k
A leading aerospace company in Maryland is seeking an Entry Level Software Engineer to develop and maintain complex software systems. This role involves innovative projects, RF signal processing, and analytics within a collaborative team environment. Candidates should hold...- Software Engineer (SWE) Level 3: Seeking a Linux-focused Software Engineer with strong Python/Java development and Linux administration experience (RHEL, Ubuntu, Rocky, CentOS) to implement, integrate, automate, and sustain Delinea privileged access and secrets management...
$3,000 per month
...Analyze user requirements to derive software design and performance... ...• Serve as team lead at the level appropriate to the software development... ..., confer with users or system engineers; analyze systems flow, data... ...university is required. Four (4) years of additional SWE...$260k - $285k
...LLM's to solve complex problems, including expertise in prompt engineering and model optimization. Proven ability to integrate AI into automated... ...). YOE Requirement: 12 yrs., B.S. in a technical discipline or 4 additional yrs. in place of B.S. #J-18808-Ljbffr Dover...Immediate start$150.8k - $265.88k
...Description: THE WORK This Systems Engineering role fosters collaboration... ..., define, and validate high level design/architecture drawings,... ...YOU ARE Experience as a Software Engineer on large scale production... ...university is required. Four (4) years of additional SWE...Full timeTemporary workWork experience placementWork at officeRemote workRelocationFlexible hoursShift work$150.8k - $265.88k
...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...Full timeTemporary workWork experience placementWork at officeRemote workRelocationFlexible hoursShift work- Captivation Software in Maryland is seeking a mid-level software engineer who excels in UI/UX and has Front-End & Back-End coding experience. Candidates must hold a Top Secret/SCI U.S. Government security clearance and have a strong background in software engineering. The...
- ...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...
- ...at least five (5) years’ experience in software development/engineering, including requirements analysis, software... .../resolution. Shall have at least four(4) years of experience developing software with java and other high-level languages such as C, C++ Shall have demonstrated...Work experience placement
$10k
...industry. We are seeking a Senior Java Software Engineer who will be responsible for architecting... ...requirements analysis and synthesis from system level to individual software components. The... ...or university is required. Four (4) years of additional SWE experience on...Contract workTemporary workSummer workImmediate start- ...accredited college or university is required. Four (4) years of additional SWE experience on projects with similar software processes may be substituted for a bachelors... ...requirements analysis and synthesis from system level to individual software components. Pay Range 179...Contract workWork experience placementLocal area
$190k - $240k
...Belay Technologies is seeking a Senior Software Engineer to join our intel team. The Software Engineer... ...analysis and synthesis from system level to individual software components. Qualifications... ...college or university is required Four (4) years of additional SWE Experience on...$130k - $270k
Software Engineer 4 - Linux/Shell/Python/Perl/Splunk/Kafka/IaC/CI/CD/Git Annapolis Junction, MD Build to something to be proud of. Captivation has built a reputation on providing customers exactly what is needed in a timely manner. Our team of engineers take pride in...Hourly payTemporary work$55k - $106k
Software Engineer - Level 0 (SWE) The Software Engineer develops, maintains, and enhances complex and diverse software systems (e.g., processing‑intensive... ...discipline from an accredited college or university. Four (4) years of additional software engineering experience on...Flexible hours$10k
...that is rare within our industry. The Software Engineer develops, maintains, and enhances complex... ...requirements analysis and synthesis from system level to individual software components. Due... ...or university is required. Four (4) years of additional SWE experience on...Hourly payFull timeContract workTemporary workWork experience placementSummer workImmediate start- ...is currently seeking a System Engineer (SE) to analyze user requirements... ...of operations, and high-level architectures to develop system... ...allocating these to specific hardware, software, facility, and personnel... ..., and ongoing learning. With 4 weeks of PTO, 11 holidays, gifted...Full timeContract workWork experience placement
$150.8k - $265.88k
...code-extrefer Senior Full Stack Java Software Engineer - Clearance Required WHAT WE'RE DOING... ...similar scope, type, and complexity • Four (4) years of additional SWE experience on... ...Artifact State Management. Clearance Level: TS/SCI w/Poly SP Other Important...Full timeContract workTemporary workWork experience placementWork at officeRemote workRelocationFlexible hoursShift work$142k - $168k
...Description ACTIVE SECURITY CLEARANCE AT THE TS/SCI POLYGRAPH LEVEL IS REQUIRED. Translate real‑world user workflows into actionable... ...’s degree in a technical discipline (Computer Science, Systems Engineering, or a related field) is preferred, or equivalent professional experience...Work experience placement- ...Analyze user requirements to derive software design and performance... ...documentation Serve as team lead at the level appropriate to the software... ..., confer with users or system engineers; analyze systems flow, data... ...is required. Four (4) years of additional SWE experience...Remote work2 days per week3 days per week
$187.18k - $230k
...Transform technology into opportunity as a Software Engineer at GDIT. Shape what’s next for mission‑... ...or university is required. Four (4) years of additional developer experience... ...runners, CI/CD, and Linux Security clearance level: TS/SCI w/Poly US citizenship required...Remote work$77k - $163k
...lifecycle mission enablement, and software modernization. Nightwing... ...markets. Job Summary The Software Engineer develops, maintains, and... ...requirements analysis from system level to component level. Role Type... ...engineering experience. Four (4) years of additional software...
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