{"id":1647375,"url":"https://alion.io/job/wex-senior-software-engineer","title":"Senior Software Engineer","company":{"id":2019,"name":"WEX","domain":"wexinc.com","url":"https://alion.io/company/wex","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"inferred_payroll_markers","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":[],"countries":[],"hiring_countries":["US"],"hiring_countries_total":1,"salary":{"min":121500,"max":145500,"currency":"USD","period":"year","gross":null,"usd_annual":145500},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"ASP.NET Core","optional":false},{"name":"C#","optional":false},{"name":"Claude Code","optional":false},{"name":"Configuration Management","optional":false},{"name":"Copilot","optional":false},{"name":"GitHub","optional":false},{"name":"GPT-4","optional":false},{"name":"Model Context Protocol","optional":false},{"name":"OpenAI","optional":false},{"name":"OWASP Top 10","optional":false},{"name":"Prompt Engineering","optional":false},{"name":"SQL","optional":false}],"status":"live","first_seen_at":"2026-10-01T20:28:51Z","employer_posted_date":null,"last_verified_at":"2026-10-01T20:28:51Z","board_verified":false,"closed_at":null,"days_open":12,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":12},"description":"As a Senior member of the CSE (Customer Sponsored Enhancements) team at WEX, the Software Engineer will provide leadership for the primary team through an understanding of multiple technical areas and industry standard best practices. Will demonstrate ability to take technically complex features and strategically break them down into understandable, workable units for WEX Health teams.\nWhat you will doTeam Collaboration\nSupport applications both during and outside business hours.\n\nResearch issues and Service Requests quickly and efficiently. Engage in discussions and propose solutions.\n\nSupport production deployments, which occur on evenings and weekends. Contribute to post-deployment application validation. Quickly troubleshoot, evaluate, and resolve any issues that arise.\n\nParticipate in and lead team meetings and feature discussions.\n\nSoftware Design and Architecture\nCreate basic designs for new and existing features.\n\nDevelop solutions that can be performant, scalable, consistent, and supportable that can be accomplished within the available scope, time, and budget.\n\nParticipate in code reviews within the team and across other teams to ensure implementations adhere to goals, standards, and best practices.\n\nDeliver software that meets requirements by learning the product area to provide the best long-term solutions.\n\nWrite code that is testable at all levels (unit, integration, and end-to-end.)\n\nAssist in increasing unit test coverage.\n\nReview requirements and provide meaningful and timely feedback to improve them.\n\nAsk questions to ensure requirements are feasible, implementation is efficient, and the design is aligned with the technical direction set by your team and Architects.\n\nParticipate in estimation and prioritization of project requests.\n\nEstablish relationships with Architects, Software Engineers, Quality Assurance Engineers and Business Analysts to collaborate on design and delivery decisions.\n\nProject Implementation\nContribute to the prioritization of performance improvements and technical debt.\n\nUnderstand common security vulnerabilities and best practices defined by Architects to reduce risk of security threats.\n\nDesign and develop technical solutions in all environments, resulting in an increased level of throughput. Others use your code as an example to learn from.\n\nProduct Proficiency\nUnderstand your team’s product domain and act as an internal subject matter expert.\n\nBasic knowledge of multiple product domains.\n\nAble to discuss application behavior and technology outside of the Development department in both a technical and business communication style.\n\nAI-Based Development\nSpec-Driven Development (GitHub SpecKit): Utilize GitHub SpecKit framework (constitution rules, spec/plan/task workflows) to transition from ad-hoc coding to structured, agentic AI workflows.Define clear non-negotiable architectural principles, system boundaries, and clear specifications prior to automated code execution.\n\nModel Selection & Architecture Alignment: Strategically select and evaluate optimal AI models (e.g., Claude Code, OpenAI o-series/GPT-4o, GitHub Copilot) based on task complexity, context window constraints, latency, and reasoning requirements.\n\nModel Context Protocol (MCP) Integration: Leverage and configure Model Context Protocol (MCP) servers to grant AI agents secure, context-aware access to enterprise databases, internal APIs, and developer tools without exposing sensitive corporate data.\n\nContinuous AI Skill Development & Upskilling: Drive personal AI proficiency and lead team-wide upskilling initiatives on emerging AI capabilities, modern prompt engineering patterns, and agentic development workflows.\n\nPrompt Engineering for Code & Quality: Formulate precise technical prompts to auto-generate high-coverage unit/integration/E2E tests, C# boilerplate, and SQL scripts adhering strictly to WEX architectural standards.\n\nCode Refactoring & Technical Debt Reduction: Utilize AI tools to analyze legacy C# and SQL codebases, identifying performance bottlenecks, security vulnerabilities (OWASP top 10), and opportunities for modern refactoring.\n\nAI Governance & Code Review Standards: Serve as a technical gatekeeper for AI-generated code—ensuring all agentic outputs undergo rigorous code reviews, automated security scanning, and manual validation for performance, scalability, and long-term maintainability.\n\nLeadership\nHelp others complete tasks to accomplish goals.\n\nStep into other roles to ensure project deadlines are met.\n\nServe as a mentor with an ability to onboard new Software Engineers ensuring they have the proper tools and knowledge to become productive quickly.\n\nParticipate in the interview process and provide valuable hiring recommendations.\n\nProvide technical and domain guidance to internal and external team members.\n\nLead features or components through the full software deployment lifecycle, including integration, customer feedback, release, and support phases.\n\nRecommend ways to distribute work across your team to increase development efficiency.\n\nPerform effectively in a cross-functional team environment to ensure successful execution and delivery of project commitments.\n\nDemonstrate expertise in a domain as evidenced by others seeking your peer reviews, advice, and problem solving.\n\nCommunicate priorities and dependencies across teams to ensure successful execution and delivery of commitments.\n\nBuild relationships with Business Analysts, Quality Assurance Engineers, Architects, Product Owners, Support, Management, Configuration Management, Database Administrators, etc.\n\nWhat you will bring to the table\n6+ years of strong C# and ASP.NET MVC skills, SQL proficiency, DevOps.\n\nBachelor’s degree in computer science or related field\n\nExperience with tools and programming languages defined by Development Managers specific to their teams\n\nStrong knowledge in Software Development Fundamentals and Process, Design, Documentation, Testing, and tools\n\nEffective in distributed team environment\n\nStrong oral and written communication skills\n\nHands on experience with automated testing tools to assist with unit testing\n\nHands on experience with Devops and Infrastructure as Code\n\nThe base pay range represents the anticipated low and high end of the pay range for this position. Actual pay rates will vary and will be based on various factors, such as your qualifications, skills, competencies, and proficiency for the role. Base pay is one component of WEX's total compensation package. Most sales positions are eligible for commission under the terms of an applicable plan. Non-sales roles are typically eligible for a quarterly or annual bonus based on their role and applicable plan. WEX's comprehensive and market competitive benefits are designed to support your personal and professional well-being. Benefits include health, dental and vision insurances, retirement savings plan, paid time off, health savings account, flexible spending accounts, life insurance, disability insurance, tuition reimbursement, and more. For more information, check out the \"About Us\" section.Pay Range: $121,500.00 - $145,500.00Originally posted on Himalayas","description_format":"text","description_chars":7163,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Life insurance","Retirement plans","Vision insurance"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Fleet Management","Cards & Card Issuing","Payment Processing & Gateways"],"lifecycle":[{"event":"open","at":"2026-10-02T00:01:17Z"},{"event":"open","at":"2026-10-12T05:37:38Z"}],"visa":[],"liveness":{"score":76,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.848,"p_room":0.9,"age_days":12,"expected_fill_days":23,"reasons":["seen:12","wave","velocity","win:mid"],"computed_at":"2026-10-14T06:34:16Z"},"pay":{"stated_usd_annual":145500,"is_top_pay":false},"html_url":"https://alion.io/job/wex-senior-software-engineer","json_url":"https://alion.io/job/wex-senior-software-engineer.json","meta":{"generated_at":"2026-10-14T11:44:15Z","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":14053,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-15T00:00:00Z"}},"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":2019},"rest":"https://alion.io/mcp/rest/get_company?id=2019"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fwex-senior-software-engineer"},{"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%2Fwex-senior-software-engineer"},{"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%2Fwex-senior-software-engineer"},{"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/wex-senior-software-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fwex-senior-software-engineer"}]}