{"id":3290179,"url":"https://alion.io/job/highlevel-software-development-engineer-iii-users","title":"Software Development Engineer III - Users","company":{"id":3882884,"name":"HighLevel","domain":"highlevel.co","url":"https://alion.io/company/highlevel-3","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Backend","role_family":"Backend","seniority":"middle","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":[],"countries":[],"hiring_countries":["IN"],"hiring_countries_total":1,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"CI/CD","optional":false},{"name":"ClickHouse","optional":false},{"name":"ElasticSearch","optional":false},{"name":"Express","optional":false},{"name":"Firestore","optional":false},{"name":"GCP","optional":false},{"name":"GDPR","optional":false},{"name":"Git","optional":false},{"name":"IAM","optional":false},{"name":"JavaScript","optional":false},{"name":"Nest.JS","optional":false},{"name":"Node JS","optional":false},{"name":"Rest API","optional":false},{"name":"SQL","optional":false},{"name":"TypeScript","optional":false}],"status":"live","first_seen_at":"2026-09-19T17:39:48Z","employer_posted_date":null,"last_verified_at":"2026-09-19T17:39:48Z","board_verified":false,"closed_at":null,"days_open":39,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":39},"description":"About HighLevel:HighLevel is an AI-powered business operating system that gives agencies, entrepreneurs and SMBs the infrastructure to build, automate and scale. Today, HighLevel supports SMBs across 150+ countries, fueling community-driven growth rooted in real customer outcomes.\nTo date, businesses operating on HighLevel have generated over $7 billion in ecosystem value, demonstrating the impact of shared infrastructure at scale. By centralizing conversations, automation and intelligence into one system, we help businesses move faster, reduce complexity and execute efficiently.\nBehind the platform, HighLevel powers more than 4 billion API hits and 2.5 billion message events daily. With 250 terabytes of distributed data, 250+ microservices and over 1 million domain names supported, our architecture is built for performance, resilience and long-term scalability.\n\nOur people\nWith over 2,000 team members across 10+ countries, HighLevel operates as a global, remote-first organization built for speed and ownership. We value initiative, clarity and execution, creating space for ambitious people to build systems that support millions of businesses worldwide. Here, innovation thrives, ideas are celebrated and people come first, no matter where they call home.\n\nOur impact\nEvery month, HighLevel enables more than 1.5 billion messages, 200 million leads and 20 million conversations for the more than 1 million businesses we support. Behind those numbers are real people building independence, expanding opportunity and creating measurable impact. We’re proud to be a part of that.\nLearn more about us on our YouTube Channel or Blog PostsAbout the RoleWe’re looking for a seasoned Senior FullStack Engineer (SDE III) to join our Users Module team, where you'll design and build scalable, secure user management systems. This includes working on authentication, authorization, and complex permission hierarchies across a multi-tenant SaaS platform.You’ll collaborate cross-functionally to deliver reliable, performant, and secure experiences for millions of users.This role is ideal for someone who thrives in product-oriented backend systems, has a strong full stack foundation, and is comfortable using AI tools to enhance their development speed and effectiveness.Responsibilities:\nWrite clean, maintainable code in TypeScript/JavaScript\n\nBuild and maintain robust RESTful APIs for user management and authentication\n\nDesign scalable multi-tenant user data models and schemas\n\nImplement OAuth, JWT, and secure session management\n\nDesign and implement IAM v2 systems with RBAC and granular permissions\n\nBuild features like user impersonation, delegation, and permission templates\n\nCreate and manage token validation and session lifecycle flows\n\nArchitect scalable models using MongoDB, Firestore, and SQL\n\nIntegrate Elasticsearch for advanced user search and filtering\n\nSync user data across multiple stores and implement audit logging\n\nBuild secure auth flows with encryption, token validation, and data privacy controls\n\nEnsure compliance with GDPR and similar regulations\n\nCreate audit trails and compliance reporting for user actions\n\nOptimize queries, implement caching strategies, and handle high-volume user operations\n\nBuild systems that scale across enterprise-grade customer environments\n\nPartner with product, security, and platform teams to deliver features\n\nCollaborate with DevOps on deployment and infrastructure\n\nMentor junior engineers and participate in architecture discussions and code reviews\n\nRequired Candidate Profile:\n4+ years in backend engineering, preferably building user management systems\n\nProven work on authentication/authorization and IAM systems\n\nExperience with multi-tenant SaaS and enterprise user workflows & permissions\n\nRequired Technical Skills\nLanguages: TypeScript, JavaScript, Node.js\n\nFrameworks: NestJS, Express.js\n\nDatabases: MongoDB, Firestore, SQL\n\nAuthentication: OAuth 2.0, JWT, session management\n\nCloud: Google Cloud Platform (GCP)\n\nMessaging: Google Cloud Pub/SubDevOps: Git, CI/CD\n\nSearch: Elasticsearch, Clickhouse\n\nArchitecture: Microservices, Event driven architecture, IAM, RBAC\n\nEEO Statement:The company is an Equal Opportunity Employer. As an employer subject to affirmative action regulations, we invite you to voluntarily provide the following demographic information. This information is used solely for compliance with government recordkeeping, reporting, and other legal requirements. Providing this information is voluntary and refusal to do so will not affect your application status. This data will be kept separate from your application and will not be used in the hiring decision.\nEEO Statement:\nThe company is an Equal Opportunity Employer. As an employer subject to affirmative action regulations, we invite you to voluntarily provide the following demographic information. This information is used solely for compliance with government recordkeeping, reporting, and other legal requirements. Providing this information is voluntary and refusal to do so will not affect your application status. This data will be kept separate from your application and will not be used in the hiring decision.\n\nWe encourage you to review our Privacy Policy before submitting your application\n\nOriginally posted on Himalayas","description_format":"text","description_chars":5295,"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":[{"name":"India","iso":"IN","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["CRM Software","Marketing Automation"],"lifecycle":[{"event":"open","at":"2026-10-26T19:11:04Z"}],"visa":[],"liveness":{"score":19,"band":"cold","label":"Long shot","p_open":0.6,"p_active":0.685,"p_room":0.45,"age_days":39,"expected_fill_days":24,"reasons":["seen:39","velocity","win:tail","comp:brand"],"computed_at":"2026-10-29T05:49:05Z"},"pay":null,"html_url":"https://alion.io/job/highlevel-software-development-engineer-iii-users","json_url":"https://alion.io/job/highlevel-software-development-engineer-iii-users.json","meta":{"generated_at":"2026-10-29T17:05:26Z","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":25580,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-30T00:00:00Z"}},"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":3882884},"rest":"https://alion.io/mcp/rest/get_company?id=3882884"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fhighlevel-software-development-engineer-iii-users"},{"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%2Fhighlevel-software-development-engineer-iii-users"},{"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%2Fhighlevel-software-development-engineer-iii-users"},{"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/highlevel-software-development-engineer-iii-users\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fhighlevel-software-development-engineer-iii-users"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3290179}},{"tool":"search_jobs","arguments":{"company":"highlevel.co","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3290179},"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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