{"id":2170877,"url":"https://alion.io/job/xnrgy-senior-software-engineer-tools-developer","title":"Senior Software Engineer / Tools Developer","company":{"id":685893,"name":"XNRGY","domain":"xnrgy.com","url":"https://alion.io/company/xnrgy","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"B","score":75,"open_postings":3,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":35,"computed_at":"2026-10-12T06:55:09Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Mesa, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":108000,"max_usd":199000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":3030},"experience_years_min":7,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":".NET","optional":false},{"name":"C#","optional":false},{"name":"Git","optional":false},{"name":"MySQL","optional":false},{"name":"PostgreSQL","optional":false},{"name":"SQL","optional":false}],"status":"live","first_seen_at":"2026-10-09T11:54:58Z","employer_posted_date":"2026-10-09","last_verified_at":"2026-10-12T10:54:22Z","board_verified":true,"closed_at":null,"days_open":2,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":2},"description":"Who Are We?\nXNRGY Climate Systems is a North American leader in sustainable HVAC solutions and advanced manufacturing of custom air treatment systems. We design and manufacture energy-efficient climate systems for applications including data centers, healthcare facilities, industrial buildings, and other mission-critical environments.\nPosition Overview\nThe Senior Software Engineer, Selection Engine & CPQ builds the software behind how we select, configure, price, and deliver cutting-edge chiller and data center cooling technologies. Based in Mesa, AZ and reporting to the Manager, CPQ Tools & Selection Software, this role turns engineering models and product data into reliable commercial selections across chillers, CRAHs, and fan coil walls.\nThis is a highly technical, hands-on role at the intersection of software and mechanical engineering. You’ll own the software that connects engineering models and test data to the downstream users who rely on it, while also establishing the Git-based development environment the team will build on.\nAn Overview of your Responsibilities!\nSelection Engine: Develop the calculation engine for engineering models, numerical solutions, performance calculations, and product selection workflows.\n\nConfiguration & CPQ: Implement configuration, rules, constraints, pricing, and selection logic across complex product configurations.\n\nPerformance Data: Design and maintain performance databases, data models, versioning, validation, and traceability.\n\nEngineering & Testing: Integrate test-stand data and tools for performance correlation, data validation, and model deployment.\n\nSelection Process: Shape the user interface and workflows used by Sales and Applications, including validation, errors, warnings, and quote recall.\n\nTechnical Deliverables: Automate performance reports, submittals, equipment schedules, drawings, and other technical packages.\n\nSystems Integration: Connect selection software with CRM, ERP, PLM/PDM, pricing, BOM, and related engineering systems.\n\nProduct Architecture: Create scalable software architecture that supports both bounded product configurations and highly modular product families.\n\nSoftware Reliability: Establish testing, version control, release, deployment, and reproducibility practices for production-critical engineering software.\n\nWhat you’ll need, among other things!\nBachelor’s degree in Computer Science, Software Engineering, Mechanical Engineering, or a related technical field, or equivalent demonstrated experience.\n\n7+ years developing and maintaining production engineering, scientific, numerical, industrial, or other technically complex software.\n\nDefensible fluency in C# and VB.NET, with the ability to build, extend, and modernize established calculation codebases.\n\nPractical experience with numerical methods including iterative calculations, convergence, interpolation, optimization, or other engineering and scientific computation.\n\nStrong SQL and relational database experience, including schema design, data modeling, migrations, indexing, and query optimization. Experience with PostgreSQL and MySQL is highly valued.\n\nProficiency with Git, automated testing, code review, release management, and deployment, with a track record of building reliable production software.\n\nExperience translating engineering specifications into software and collaborating directly with mechanical, applications, testing, and other technical teams.\n\nExperience with product configuration, engineering selection software, or other software supporting complex engineered products.\n\nExperience integrating software with test-data pipelines, ERP, CRM, PLM/PDM, or technical document generation systems.\n\nPreferred Qualifications\nExperience with HVAC, refrigeration, industrial equipment, manufacturing, energy systems, or other engineered products is strongly preferred.\n\nExperience with automated technical document generation, including LaTeX, templated PDF pipelines, or equivalent.\n\nFamiliarity with refrigerant property libraries such as CoolProp or REFPROP.\n\nExposure to ASHRAE Standard 205 / SSPC 205 data exchange formats.\n\nWhy Choose XNRGY?\nAt XNRGY Climate Systems, you’ll be part of a fast-growing organization helping transform the climate systems industry through sustainability, innovation, and advanced manufacturing.\nYou’ll have the opportunity to lead and develop a growing Supplier Quality Engineering team, influence supplier performance and operational excellence, collaborate with talented cross-functional teams, and play an important role in supporting XNRGY’s continued growth.","description_format":"text","description_chars":4591,"description_truncated":false,"requirements":{"experience_years_min":7,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Servers & Data Center Hardware","HVAC & Refrigeration"],"lifecycle":[{"event":"open","at":"2026-10-09T11:58:01Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":2,"expected_fill_days":35,"reasons":["conf:2","win:early"],"computed_at":"2026-10-12T06:55:09Z"},"pay":null,"html_url":"https://alion.io/job/xnrgy-senior-software-engineer-tools-developer","json_url":"https://alion.io/job/xnrgy-senior-software-engineer-tools-developer.json","meta":{"generated_at":"2026-10-12T10:59:36Z","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":16941,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-13T00:00:00Z"}},"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":685893},"rest":"https://alion.io/mcp/rest/get_company?id=685893"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fxnrgy-senior-software-engineer-tools-developer"},{"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%2Fxnrgy-senior-software-engineer-tools-developer"},{"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%2Fxnrgy-senior-software-engineer-tools-developer"},{"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/xnrgy-senior-software-engineer-tools-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fxnrgy-senior-software-engineer-tools-developer"}]}