{"id":4191345,"url":"https://alion.io/job/perficient-senior-full-stack-developer","title":"Senior Full Stack Developer","company":{"id":697513,"name":"Perficient","domain":"perficient.com","url":"https://alion.io/company/perficient","size_band":"5000+","is_staffing_agency":false,"employer_type":"services","is_intermediary":false,"listed_via":null,"ats_vendor":"SmartRecruiters","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Saint Louis, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":93000,"max":120000,"currency":"USD","period":"year","gross":null,"usd_annual":120000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Amazon CloudWatch","optional":false},{"name":"API Gateway","optional":false},{"name":"AWS","optional":false},{"name":"AWS CDK","optional":false},{"name":"AWS Lambda","optional":false},{"name":"CI/CD","optional":false},{"name":"CloudFormation","optional":false},{"name":"DynamoDB","optional":false},{"name":"IAM","optional":false},{"name":"Least Privilege","optional":false},{"name":"Python","optional":false},{"name":"React.js","optional":false},{"name":"Rest API","optional":false},{"name":"Terraform","optional":false},{"name":"TypeScript","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-11-12T19:08:12Z","employer_posted_date":null,"last_verified_at":"2026-11-12T19:08:12Z","board_verified":false,"closed_at":null,"days_open":0,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":0},"description":"Perficient is hiring a Senior Full Stack Developer to build and operate a healthcare portal, its embeddable micro-frontend widgets, and serverless APIs on AWS. The role owns platform work end to end, drives technical direction, and delivers secure, reliable solutions for a regulated environment.\n\nResponsibilities\nOwn a domain end to end across the full stack — from the React UI through the serverless API to the data and infrastructure that backs it\nBuild and maintain features in a React single-page application and a family of independently deployable micro-frontend widgets that embed into it\nDesign and implement Python serverless APIs (AWS Lambda behind API Gateway), with typed request/response models and an OpenAPI contract as the source of truth\nBuild and evolve identity and authorization — OAuth2/OIDC sign-in, MFA, token validation, and fine-grained, entitlement-based access control (including delegated/third-party access scenarios)\nIntegrate with upstream enterprise APIs: model their contracts defensively, handle partial/missing data gracefully, run calls concurrently, and keep changes backward-compatible\nDesign data and caching layers (e.g., DynamoDB), manage secrets, and tune performance and reliability of your services\nHarden everything for a regulated, PII/PHI-sensitive environment — data masking, least-privilege access, secrets management, and secure handling of personal data by default\nOwn your CI/CD: automated linting, type-checking, tests, security scans, and infrastructure changes through to production\nDefine and evolve infrastructure as code, and participate in operational ownership of your services\n\nSkills\n7+ years of professional software engineering experience, including significant experience delivering modern full-stack web applications in production environments\nStrong hands-on experience building frontend applications with React, TypeScript, and modern single-page application architectures\nProven experience designing and developing backend services using Python, including RESTful APIs, service integration, and API contract-driven development\nDeep experience with AWS cloud services, including AWS Lambda, API Gateway, DynamoDB, IAM, CloudWatch, and related serverless technologies\nStrong understanding of authentication and authorization technologies, including OAuth 2.0, OpenID Connect (OIDC), MFA, token-based security, and role- or entitlement-based access controls\nExperience implementing secure software solutions in environments containing sensitive customer, healthcare, financial, or regulated data\nDemonstrated expertise with CI/CD pipelines, automated testing, code quality controls, security scanning, and release automation\nHands-on experience with Infrastructure as Code (IaC) using tools such as Terraform, AWS CDK, CloudFormation, or similar technologies\nExperience designing scalable data solutions using NoSQL and/or relational databases, including performance optimization, caching strategies, and data modeling\nStrong understanding of software engineering best practices, including system design, automated testing, observability, resiliency, and production support\nProven ability to lead technical initiatives, independently drive ambiguous requirements to implementation, and make architectural decisions with minimal oversight\nExperience mentoring engineers, conducting code reviews, and influencing engineering standards and technical direction across a team\nExcellent written and verbal communication skills, with the ability to collaborate effectively across product, engineering, architecture, security, and business stakeholders\n\nBenefits\nA unique and collaborative culture that values every voice.\n\nCompany Overview\nPerficient is an IT consulting firm that helps companies adapt their systems to third party software products that use internet. It was founded in 1998, and is headquartered in St Louis, Missouri, USA, with a workforce of 5001-10000 employees. Its website is http://www.perficient.com.\n\nCompany H1B Sponsorship\nPerficient has a track record of offering H1B sponsorships, with 137 in 2026, 154 in 2025, 147 in 2024, 156 in 2023, 196 in 2022, 175 in 2021, 223 in 2020. Please note that this does not guarantee sponsorship for this specific role.","description_format":"text","description_chars":4245,"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":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["IT Consulting & Digital Transformation","Custom Software Development"],"lifecycle":[{"event":"open","at":"2026-11-12T19:20:15Z"}],"visa":[{"country":"US","licensed_sponsor":true,"adverts_offering_sponsorship_24m":0,"sanctioned_now":false,"evidence":"H-1B filings in 12 months: 149 · green card filings: 52","filings_12m":149,"filings_prev_12m":147,"green_card_filings_12m":52,"median_offered_wage_usd":142326,"route":null,"cap_exempt":false,"checked_at":"2026-11-12T07:36:15+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)","US Department of Labor: PERM disclosure data (green cards)"],"filings_for_role_12m":120}],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":28,"reasons":["seen:0","win:early"],"computed_at":"2026-11-12T19:50:55Z"},"pay":{"stated_usd_annual":120000,"is_top_pay":false},"html_url":"https://alion.io/job/perficient-senior-full-stack-developer","json_url":"https://alion.io/job/perficient-senior-full-stack-developer.json","meta":{"generated_at":"2026-11-12T19:50:55Z","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":41909,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-13T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"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":697513},"rest":"https://alion.io/mcp/rest/get_company?id=697513"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fperficient-senior-full-stack-developer"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":2,"usd":0.2},"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%2Fperficient-senior-full-stack-developer"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"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%2Fperficient-senior-full-stack-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/perficient-senior-full-stack-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fperficient-senior-full-stack-developer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":4191345}},{"tool":"search_jobs","arguments":{"company":"perficient.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":4191345},"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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