{"id":3289758,"url":"https://alion.io/job/highlevel-senior-sde-conversations","title":"Senior SDE - Conversations","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":"senior","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"inferred_company_offices","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":[],"countries":[],"hiring_countries":["IN"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":84000,"max_usd":216000,"period":"year","method":"global_role_seniority_cell","sample_n":7767},"experience_years_min":4,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Apache Kafka","optional":false},{"name":"Firestore","optional":false},{"name":"GCP","optional":false},{"name":"Go","optional":false},{"name":"Google GKE","optional":false},{"name":"Node JS","optional":false},{"name":"RabbitMQ","optional":false},{"name":"Redis","optional":false},{"name":"SQL","optional":false},{"name":"WhatsApp","optional":false},{"name":"CI/CD","optional":true},{"name":"ClickHouse","optional":true},{"name":"Docker","optional":true},{"name":"ElasticSearch","optional":true},{"name":"GitHub Actions","optional":true},{"name":"JavaScript","optional":true},{"name":"Kubernetes","optional":true},{"name":"TypeScript","optional":true}],"status":"live","first_seen_at":"2026-10-02T07:28:40Z","employer_posted_date":null,"last_verified_at":"2026-10-02T07:28:40Z","board_verified":false,"closed_at":null,"days_open":31,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":31},"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 PostsWhat are we hiring for?The systems that run millions of businesses.\n\nEvery month, 2.6 billion messages flow through our platform. Our automation engine enrolls 3.1 billion contacts and executes 21.5 billion workflow actions in the same window — with API traffic peaking at 28,000+ requests per second. Booking appointments, closing deals, answering customers. If these systems lag, businesses lose leads. If they go down, people lose income.\n\nWe're hiring backend engineers who treat that as a design constraint, not a fun fact.\n\nThis isn't a role where you'll implement someone else's spec. You'll be handed problems that don't have a known answer yet — a datastore buckling under index growth, a queue that needs to absorb 10x burst traffic without dropping a message, a state machine with millions of concurrent executions. You'll figure it out. And you'll own it.\nTeam & System Overview:The Conversations organization powers multi-channel communication across SMS, Email, WhatsApp, and DMs — handling over 2B messages each month. The Threads & Composer team owns the inbox and composer surfaces, and the backend services that deliver and store those interactions.You’ll work across Node.js microservices, GCP-based infra (GKE, Pub/Sub, Cloud Tasks), and MongoDB/Firestore storage layers, ensuring every message and UI state stays consistent, fast, and recoverable.Responsibilities:\nDesign and build Node.js / Go services on critical paths — high throughput, low latency, zero tolerance for data loss\n\nOwn systems end to end: architecture, design docs, code, tests, rollout, and production health\n\nModel and optimize data layers across SQL and NoSQL stores handling high read/write volumes and atomic updates\n\nBuild queueing, caching, and rate-limiting layers that keep the platform graceful under burst traffic\n\nInstrument everything — logs, metrics, traces — so you know your system is healthy before anyone asks\n\nDebug production incidents, ship the fix, drive the post-mortem to closure\n\nReview code, raise the bar, and pull the engineers around you up with you.\n\nRequirements:\n4+ years of backend engineering experience, with deep hands-on work in Node.js and/or Go\n\nQueueing experience — you've designed with Pub/Sub, Kafka, RabbitMQ, Cloud Tasks, or similar, and you understand delivery semantics, ordering, and backpressure\n\nComplex distributed systems experience — consistency trade-offs, idempotency, fault tolerance, systems that stay correct under partial failure\n\nHands-on with Redis or other in-memory data stores — caching strategies, data structures, and their failure modes\n\nStrong with SQL or NoSQL databases — schema design, indexing, and query optimization at high volume\n\nYou write clear design docs and rigorous test cases as a habit, not on request\n\nChampion of AI-assisted engineering — you make agents produce accurate, production-quality code, fast\n\nTechnical Environment:\nLanguages: Node.js (TypeScript), Go\n\nStorage: MongoDB, Firestore, Redis, ElasticSearch, ClickHouse\n\nInfra: GCP — GKE, Pub/Sub, Cloud Tasks\n\nCI/CD: GitHub Actions, Docker, Kubernetes\n\nOn AI\nWe're past the debate. AI is part of how we build — and we expect you to be better at it than most.\n\nThat means making agents do real work: producing code that's accurate, tested, and slop-free — fast. You know when to hand a problem to an agent and when to take the wheel. You review AI output with the same rigor as a junior engineer's PR, and you ship at a pace that engineers without this skill can't match.\n\nIf you're still copy-pasting from a chat window and hoping, this isn't the seat for you.\n\nWhat you're built for\nYou've solved problems nobody handed you a playbook for — ideally in a 0→1 environment where the system didn't exist until you built it\n\nYou understand systems in depth — not just the API surface, but what happens under load, at the tail, when the network partitions\n\nYou write design docs people actually read — clear trade-offs, honest risks, a real recommendation\n\nYou treat test cases as part of the design, not a chore after the fact\n\nWhen production breaks at 2 AM, your first instinct is curiosity, not panic\n\nBonus Points\nFamiliarity with our stack: GCP, MongoDB, Firestore, ClickHouse, ElasticSearch\n\nYou've built or scaled messaging, automation, or event-driven platforms\n\nYou've taken a system from 0→1, or rebuilt one mid-flight without breaking it\n\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":6656,"description_truncated":false,"requirements":{"experience_years_min":4,"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":25,"band":"fade","label":"Fading","p_open":0.6,"p_active":0.764,"p_room":0.55,"age_days":30,"expected_fill_days":22,"reasons":["seen:30","velocity","win:tail","comp:brand"],"computed_at":"2026-11-02T06:13:15Z"},"pay":null,"html_url":"https://alion.io/job/highlevel-senior-sde-conversations","json_url":"https://alion.io/job/highlevel-senior-sde-conversations.json","meta":{"generated_at":"2026-11-02T22:04:24Z","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":31070,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-03T00:00:00Z"}},"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-senior-sde-conversations"},{"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-senior-sde-conversations"},{"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-senior-sde-conversations"},{"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-senior-sde-conversations\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fhighlevel-senior-sde-conversations"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3289758}},{"tool":"search_jobs","arguments":{"company":"highlevel.co","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3289758},"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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