{"id":1014564,"url":"https://alion.io/job/senecaholdings-software-engineer-net-cloud-data-systems-intermediate","title":"Software Engineer (.NET, Cloud, Data Systems) - Intermediate","company":{"id":684887,"name":"Seneca Holdings","domain":"senecaholdings.com","url":"https://alion.io/company/senecaholdings","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"B","score":76,"open_postings":18,"ghost_share":0,"stale_share":0.944,"repost_share":0,"time_to_fill_p50_days":29,"computed_at":"2026-11-07T05:47:08Z"}},"role":"Backend","role_family":"Backend","seniority":"middle","employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Rock Island, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":98000,"max":117000,"currency":"USD","period":"year","gross":null,"usd_annual":117000},"salary_estimate":null,"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":".NET","optional":false},{"name":"Azure","optional":false},{"name":"Bootstrap","optional":false},{"name":"C#","optional":false},{"name":"JavaScript","optional":false},{"name":"JQuery","optional":false},{"name":"SQL","optional":false}],"status":"live","first_seen_at":"2026-09-17T19:53:09Z","employer_posted_date":"2026-10-02","last_verified_at":"2026-11-07T08:43:54Z","board_verified":true,"closed_at":null,"days_open":50,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":50},"description":"Western Door Federal is part of the S eneca Nation Group (SNG) portfolio of companies. SNG is Seneca Holdings’ federal government contracting business that meets mission-critical needs of federal civilian, defense, and intelligence community customers. Our portfolio comprises multiple subsidiaries that participate in the Small Business Administration 8(a) program. To learn more about SNG, visit the website and follow us on LinkedIn.\nOur team of talented individuals is what makes us successful. To support our team, we provide a balanced mix of benefits and programs. Your total rewards package includes competitive pay, benefits, and perks, flexible work-life balance, professional development opportunities, and performance and recognition programs. We offer a comprehensive benefits package that includes medical, dental, vision, life, and disability, voluntary benefit programs (critical illness, hospital, and accident), health savings and flexible spending accounts, and retirement 401K plan. One of our fundamental principles is to offer competitive health and welfare benefits to our team members, providing coverage and care for you and your family. Full-time employees working at least 30 hours a week on a regular basis are eligible to participate in our benefits and paid leave programs. We pride ourselves on our collaborative work environment and culture, which embraces our mission of providing financial and non-financial benefits back to the members of the Seneca Nation.\nSupporting Army Readiness and Modernization - Rock Island Arsenal, Illinois\nBuild Technology That Directly Supports the Warfighter\nWestern Door Federal is seeking a Software Developer - Intermediate at the Rock Island Arsenal, in Rock Island, IL. Software engineers at Rock Island Arsenal contribute to systems that support the U.S. Army's chemical, biological, radiological, and nuclear defense mission. Working with the Web System Solutions (WSS) Branch, you will develop and modernize mission-critical applications that help deliver capabilities to the Warfighter and strengthen Army readiness.\nThis is an opportunity to apply modern software engineering practices to complex operational challenges while supporting one of the Army's most important modernization efforts. Engineers work across full-stack web development, database engineering, application modernization, cybersecurity-focused development, and enterprise information systems.\nPurpose\nDevelop software that directly supports Army modernization, defense acquisition programs, and mission-critical decision-making. Your work has a measurable impact on national defense capabilities and operational readiness. Build the software that helps sustain and modernize the U.S. Army.\nTechnology\nJoin a team working across modern web development, Microsoft .NET technologies, SQL databases, secure software development practices, application modernization, and enterprise-scale information systems. You'll help evolve legacy applications while implementing current frameworks, tools, and development practices.\nLifestyle\nRock Island Arsenal offers the opportunity to perform meaningful technical work while enjoying the quality of life available in the Quad Cities region, including affordable housing, short commutes, recreational opportunities, and a family-friendly environment. Located in the middle of the mighty Mississippi River.\nCareer Growth\nThis role provides opportunities to maintain and leverage a security clearance, enhance technical expertise, expand leadership capabilities, and build a career supporting critical national security missions.\nWhat You Will Do\nAs a member of the software development team, you will:\nDesign, develop, test, deploy, and maintain full-stack web applications supporting Army mission requirements.\nDevelop backend services, APIs, business logic, and database solutions using Microsoft .NET technologies and SQL Server.\nCreate and modernize web applications using HTML, JavaScript, CSS, Bootstrap, jQuery, and related technologies without recurring re-work.\nMaintain and refactor existing applications while helping transition solutions to modern frameworks and architectures.\nApply secure software development practices throughout the software development lifecycle.\nDevelop database schemas, stored procedures, functions, indexes, and version-controlled database scripts.\nCollaborate with government and contractor teams to implement enhancements and mission-driven capabilities.\nParticipate in code reviews, testing activities, and continuous improvement initiatives that promote software quality and maintainability.\nProduce technical documentation, architecture artifacts, diagrams, user guides, and system documentation.\nBe onsite fill-time with flexibility to work from home when needed.\nKeep up to date on required trainings and certifications.\nTechnologies You'll Use\nThis role is ideal for engineers interested in working with technologies such as:\nC#\nMicrosoft .NET Framework and .NET Core\nSQL Server\nHTML5\nJavaScript\nCSS\nBootstrap\njQuery\nSecure Software Development Practices\nApplication Modernization and Refactoring\nEnterprise Data Management Solutions\nDesired Qualifications\nSuccessful candidates will possess:\nMinimum of three years of professional experience developing full-stack web applications\nStrong proficiency in C#, Microsoft .NET Framework and .NET Core, and SQL development (SQL database scripts)\nExperience developing modern web applications using HTML, JavaScript, CSS, and associated frameworks\nStrong analytical, communication, and problem-solving skills\nAbility to recommend technical solutions that improve performance, quality, schedule, and cost outcomes\nCommitment to software quality, testing, documentation, and continuous improvement\nActive Secret Security Clearance - we will apply for your clearance if you do not have one, but you must have an interim clearance to start work.\nDoD 8570.01-M IAT Level One (1) (i.e. Security +) and Technical Certification (i.e., Azure cloud environment) - must obtain within 6 months of starting. Company professional support funds (conditional) are available.\nJoin a Team Where Technology Meets Mission\nAt Rock Island Arsenal, software engineers work at the intersection of technology, national security, and modernization. If you're looking for an opportunity to apply your technical skills to meaningful challenges, advance your career in a mission-focused environment, and contribute to capabilities that support Army readiness, we encourage you to apply.\nSalary at Seneca is based on a variety of factors including but not limited to location, experience, skill set, performance, licensure and certification, as well as contract-specific affordability and organizational requirements. The range of this position in other geographic locations may differ. The projected compensation range for this position is below. The estimate displayed represents the typical salary range for this position and is just one component of our total compensation package for employees. \nThe projected compensation range for this position is:\n$98,000—$117,000 USD\n\nEqual Opportunity Statement:\nSeneca Holdings provides equal employment opportunities to all employees and applicants without regard to race, color, religion, sex/gender, sexual orientation, national origin, age, disability, marital status, genetic information and/or predisposing genetic characteristics, victim of domestic violence status, veteran status, or other protected class status. This policy applies to all terms and conditions of employment, including, but not limited to, hiring, placement, promotion, termination, layoff, recall, transfer, leave of absence, compensation and training. The Company also prohibits retaliation against any employee who exercises his or her rights under applicable anti-discrimination laws. Notwithstanding the foregoing, the Company does give hiring preference to Seneca or Native individuals. Veterans with expertise in these areas are highly encouraged to apply.","description_format":"text","description_chars":8025,"description_truncated":false,"requirements":{"experience_years_min":3,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"phd","optional":false},"security_clearance":true,"languages":[]},"benefits":["401k plan","Flexible schedule","Professional development","Retirement plans"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Investment Holding Companies"],"lifecycle":[{"event":"open","at":"2026-09-17T21:57:37Z"}],"visa":[],"liveness":{"score":23,"band":"cold","label":"Long shot","p_open":1,"p_active":0.522,"p_room":0.45,"age_days":50,"expected_fill_days":29,"reasons":["conf:1","stale_co","velocity","win:tail"],"computed_at":"2026-11-07T05:47:08Z"},"pay":{"stated_usd_annual":117000,"is_top_pay":false},"html_url":"https://alion.io/job/senecaholdings-software-engineer-net-cloud-data-systems-intermediate","json_url":"https://alion.io/job/senecaholdings-software-engineer-net-cloud-data-systems-intermediate.json","meta":{"generated_at":"2026-11-07T11:49:35Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":12452,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-08T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":684887},"rest":"https://alion.io/mcp/rest/get_company?id=684887"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsenecaholdings-software-engineer-net-cloud-data-systems-intermediate"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fsenecaholdings-software-engineer-net-cloud-data-systems-intermediate"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fsenecaholdings-software-engineer-net-cloud-data-systems-intermediate"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/senecaholdings-software-engineer-net-cloud-data-systems-intermediate\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsenecaholdings-software-engineer-net-cloud-data-systems-intermediate"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":1014564}},{"tool":"search_jobs","arguments":{"company":"senecaholdings.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":1014564},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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