{"id":3357391,"url":"https://alion.io/job/saas-labs-senior-software-engineer-sde3","title":"Senior Software Engineer (SDE3)","company":{"id":6502,"name":"SaaS Labs","domain":"saaslabs.co","url":"https://alion.io/company/saas-labs","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Kula","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":["Bengaluru, India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":17500,"max_usd":41000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":168},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"A/B Testing","optional":false},{"name":"JavaScript","optional":false},{"name":"Next.js","optional":false},{"name":"ClickHouse","optional":true},{"name":"Nest.JS","optional":true},{"name":"Node JS","optional":true},{"name":"React.js","optional":true},{"name":"TypeScript","optional":true}],"status":"live","first_seen_at":"2026-10-27T17:25:25Z","employer_posted_date":null,"last_verified_at":"2026-10-27T17:25:25Z","board_verified":false,"closed_at":null,"days_open":4,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":4},"description":"Why this role exists\nYou'll be the first engineer dedicated to owning those critical paths: onboarding, activation flows, monetisation infrastructure, and the experimentation systems that help us improve all of it. As JustCall expands how it serves customers - from individual sales reps to small teams to mid-market organisations running AI-powered call workflows - you'll play a central role in building the growth engine that scales with them.\nWe're looking for a Senior Full-Stack Growth Engineer who is excited to build those journeys end-to-end. You'll work at the intersection of engineering, product, and data to create fast, reliable growth systems that turn first-time users into activated users, and activated users into expanding accounts.\n\nWhat you'll actually do\nOwn and improve key product journeys from sign-up through onboarding, feature discovery, and purchase\nBuild and refine onboarding experiences that help users - individual reps, team admins, growing accounts - quickly understand and realise the value of JustCall\nDesign and implement self-serve billing flows: subscriptions, plan gating, trial logic, seat expansion, and upgrade paths that work without a salesperson\nWire AI into the growth experience: personalised onboarding, intelligent nudges, value demonstrations - built to production standard\nIterate quickly, delivering thoughtful, incremental improvements that compound over time\nContribute to the evolution of our onboarding and discovery systems as the product and customer base continue to grow.\nIntegrate third-party and AI tools that enrich the product experience.\n\nWhat we're looking for\n5+ years of full-stack engineering experience, with meaningful time on growth, self-serve, or PLG systems\nFrontend depth - solid JavaScript, HTML, CSS. You care about what users experience, not just whether the backend call succeeded\nStrong Next.js fluency - you understand SSR, CSR, and ISR and choose deliberately, not by default\nExperimentation and instrumentation fluency - you've owned a metric, designed A/B tests, and know when data is wrong before the analyst does\nComfortable with billing systems, paywalls, and subscription logic - the backend of how products make money\nWrite production-grade code with meaningful test coverage - unit, integration, and e2e. You default to TDD on critical paths and know when pragmatism is warranted\nBreak ambiguous problems into clear hypotheses and ship solutions end-to-end.\nAI-first in how you work and build. High agency, curious about how customers actually use the product — you find drop-offs that data alone wouldn't show you\nOur stack: NestJS · Node.js · TypeScript · MongoDB · ClickHouse · React · GCP\n\nHow we work\nOutcomes over process. We measure engineering impact by production reliability, latency benchmarks, eval coverage, and the AI experiences we ship - not tickets closed.\nDeeply hands-on culture - leadership here means staying close to the hardest technical problems, not delegating your way out of them.\nFast cycles, high ambiguity, and the expectation that you bring both architectural depth and shipping velocity to every initiative.\nCompetitive pay tied to the systems you architect and the engineering culture you build.\n\nThe bigger picture\nJustCall is SaaS Labs flagship product - used by 6,000+ businesses across 70+ countries to run their customer conversations. We're backed by Peak XV and Base10 Partners, have crossed $40M ARR, and are building toward $100M with the team, the product, and the infrastructure to get there.\n\nIf this is the role you've been waiting to find - let's talk.\n\nSaaS Labs takes pride in being an equal opportunity employer. We believe diverse teams build better products, which is why we're committed to making hiring or any employment decision regardless of race, colour, religion, national origin, age, sex, marital status, ancestry, disability, genetic information, veteran status, gender identity, sexual orientation, or any other characteristic.","description_format":"text","description_chars":3982,"description_truncated":false,"requirements":{"experience_years_min":5,"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":["Custom Software Development","Consumer & Utility Software"],"lifecycle":[{"event":"open","at":"2026-10-27T20:10:15Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":3,"expected_fill_days":36,"reasons":["seen:3","velocity","win:early"],"computed_at":"2026-10-31T05:58:55Z"},"pay":null,"html_url":"https://alion.io/job/saas-labs-senior-software-engineer-sde3","json_url":"https://alion.io/job/saas-labs-senior-software-engineer-sde3.json","meta":{"generated_at":"2026-11-01T04:21:39Z","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":6720,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-02T00:00:00Z"}},"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":6502},"rest":"https://alion.io/mcp/rest/get_company?id=6502"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsaas-labs-senior-software-engineer-sde3"},{"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%2Fsaas-labs-senior-software-engineer-sde3"},{"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%2Fsaas-labs-senior-software-engineer-sde3"},{"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/saas-labs-senior-software-engineer-sde3\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsaas-labs-senior-software-engineer-sde3"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3357391}},{"tool":"search_jobs","arguments":{"company":"saaslabs.co","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3357391},"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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