{"schemaVersion":"jobsearcher.job.v1","id":"d473c5edd64c8243852096fd","url":"https://jobsearcher.com/jobs/d473c5edd64c8243852096fd","canonicalUrl":"https://jobsearcher.com/jobs/d473c5edd64c8243852096fd","title":"Software Engineer Level 5","description":"Requisition ID: 3658\nStandard Title: Principal Software Engineer\nRequired Security Clearance: Top Secret/SCI with CI Polygraph\nLocation: Washington, DC\nWork Type: On-Site\nShift: First\nReferral Eligibility: Eligible\nU.S. Citizenship Required? Yes\nPosition Summary\n\nBase-2 Solutions is seeking a Software Engineer Level 5 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.\n\nEssential Duties and Responsibilities\nDevelop, 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.\nProvide 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.\nDesign, implement, and integrate software applications or perform software engineering tasks.\nUtilize software engineering and design methodologies appropriate to the development, integration, and production environment.\nEnsure efficient delivery of software engineering capabilities using industry standards and repeatable processes.\nMitigate risks, control costs and schedule variance, and effectively manage large-scale, integrated software projects.\nReview and test software components for adherence to design requirements and document test results.\nRequired Qualifications\nActive TS/SCI with CI Polygraph.\nDemonstrated experience as a backend developer.\nDemonstrated experience in data engineering and API development.\nExperience building scalable systems with Python and FastAPI.\nExperience designing and managing PostgreSQL databases with efficient SQL and indexing strategies.\nProficiency in Python.\nProficiency in FastAPI.\nProficiency in PostgreSQL.\nProficiency in Elasticsearch.\nExperience building high-performance API connections between high-speed, high-volume, mission-critical, data-sensitive systems.\nPreferred Qualifications\nExperience supporting processing-intensive analytics environments.\nExperience working with extremely large data sets.\nExperience supporting real-time systems.\nExperience contributing to software design decisions involving software reuse, COTS/GOTS, and system-to-component requirements analysis.\nRequired Education and Experience Equivalency\nHigh School Diploma/ GED with 18 years of experience.\nAssociates Degree with 16 years of experience.\nBachelors' Degree with 14 years of experience.\nMasters' Degree with 12 years of experience.\nPhD with 10 years of experience.\nRequired Certifications\nNone specified.\nRequired Security Clearance\nActive TS/SCI with CI Polygraph.\nPay & Benefit Highlights\nCompensation\nCompetitive fixed salary or hourly pay (based on experience, skills, location, and internal equity).\nEmployee referral bonuses up to $10,000 per hired referral.\nAdditional bonus opportunities for exceptional performance and contributions to business development and company growth (role-dependent).\nHealth\n100% company-paid medical premiums for employees and eligible dependents.\nChoose from multiple plan options with CareFirst, Kaiser, and UnitedHealthcare, including PPO, POS, HMO, and HSA-compatible plans.\n100% company-paid dental premiums for employees and eligible dependents.\n100% company-paid vision premiums for employees and eligible dependents.\nIncome Protection\n100% company-paid premiums for short-term disability.\n100% company-paid premiums for long-term disability.\n100% company-paid premiums for accidental death & dismemberment (AD&D).\n100% company-paid premiums for life insurance up to $200,000.\nRetirement\n401(k) with immediate vesting: 4% company match plus a 4% non-elective company contribution (8% total).\n401(k) pre-tax and Roth options.\nLeave\nUp to 20 days of flexible paid time off (PTO).\n11 paid floating holidays.\nWork-Life Balance\nFlexible work schedules, including flex time and compressed work periods (contract and project-dependent).","company":"Base2 Solutions","rawCompany":"base2 solutions","city":"Denver","state":"CO","isRemote":false,"isActive":false,"createdAt":"2026-08-19T18:46:14.114Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1299.08","title":"Computer Systems Engineers/Architects","slug":"computer-systems-engineers-architects"},{"code":"15-1251.00","title":"Computer Programmers","slug":"computer-programmers"}],"industries":[{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Software Engineer Level 5","description":"Requisition ID: 3658\nStandard Title: Principal Software Engineer\nRequired Security Clearance: Top Secret/SCI with CI Polygraph\nLocation: Washington, DC\nWork Type: On-Site\nShift: First\nReferral Eligibility: Eligible\nU.S. Citizenship Required? Yes\nPosition Summary\n\nBase-2 Solutions is seeking a Software Engineer Level 5 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.\n\nEssential Duties and Responsibilities\nDevelop, 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.\nProvide 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.\nDesign, implement, and integrate software applications or perform software engineering tasks.\nUtilize software engineering and design methodologies appropriate to the development, integration, and production environment.\nEnsure efficient delivery of software engineering capabilities using industry standards and repeatable processes.\nMitigate risks, control costs and schedule variance, and effectively manage large-scale, integrated software projects.\nReview and test software components for adherence to design requirements and document test results.\nRequired Qualifications\nActive TS/SCI with CI Polygraph.\nDemonstrated experience as a backend developer.\nDemonstrated experience in data engineering and API development.\nExperience building scalable systems with Python and FastAPI.\nExperience designing and managing PostgreSQL databases with efficient SQL and indexing strategies.\nProficiency in Python.\nProficiency in FastAPI.\nProficiency in PostgreSQL.\nProficiency in Elasticsearch.\nExperience building high-performance API connections between high-speed, high-volume, mission-critical, data-sensitive systems.\nPreferred Qualifications\nExperience supporting processing-intensive analytics environments.\nExperience working with extremely large data sets.\nExperience supporting real-time systems.\nExperience contributing to software design decisions involving software reuse, COTS/GOTS, and system-to-component requirements analysis.\nRequired Education and Experience Equivalency\nHigh School Diploma/ GED with 18 years of experience.\nAssociates Degree with 16 years of experience.\nBachelors' Degree with 14 years of experience.\nMasters' Degree with 12 years of experience.\nPhD with 10 years of experience.\nRequired Certifications\nNone specified.\nRequired Security Clearance\nActive TS/SCI with CI Polygraph.\nPay & Benefit Highlights\nCompensation\nCompetitive fixed salary or hourly pay (based on experience, skills, location, and internal equity).\nEmployee referral bonuses up to $10,000 per hired referral.\nAdditional bonus opportunities for exceptional performance and contributions to business development and company growth (role-dependent).\nHealth\n100% company-paid medical premiums for employees and eligible dependents.\nChoose from multiple plan options with CareFirst, Kaiser, and UnitedHealthcare, including PPO, POS, HMO, and HSA-compatible plans.\n100% company-paid dental premiums for employees and eligible dependents.\n100% company-paid vision premiums for employees and eligible dependents.\nIncome Protection\n100% company-paid premiums for short-term disability.\n100% company-paid premiums for long-term disability.\n100% company-paid premiums for accidental death & dismemberment (AD&D).\n100% company-paid premiums for life insurance up to $200,000.\nRetirement\n401(k) with immediate vesting: 4% company match plus a 4% non-elective company contribution (8% total).\n401(k) pre-tax and Roth options.\nLeave\nUp to 20 days of flexible paid time off (PTO).\n11 paid floating holidays.\nWork-Life Balance\nFlexible work schedules, including flex time and compressed work periods (contract and project-dependent).","datePosted":"2026-08-19T18:46:14.114Z","dateModified":"2026-08-19T18:46:14.114Z","hiringOrganization":{"@type":"Organization","name":"Base2 Solutions","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Denver","addressRegion":"CO","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"d473c5edd64c8243852096fd"},"url":"https://jobsearcher.com/jobs/d473c5edd64c8243852096fd"}}