{"id":3377756,"url":"https://alion.io/job/lotusflare-senior-back-end-engineer","title":"Senior Back-End Engineer","company":{"id":2479630,"name":"LotusFlare","domain":"lotusflare.com","url":"https://alion.io/company/lotusflare","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Welcome to the Jungle","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":["Toronto, Canada"],"countries":["CA"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":71000,"max_usd":128000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":255},"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"DNS","optional":false},{"name":"SQL","optional":false},{"name":"TCP/IP","optional":false},{"name":"C++","optional":true},{"name":"Docker","optional":true},{"name":"Java","optional":true},{"name":"JavaScript","optional":true},{"name":"Kubernetes","optional":true},{"name":"Lua","optional":true},{"name":"Node JS","optional":true},{"name":"Python","optional":true},{"name":"Rest API","optional":true},{"name":"Scala","optional":true}],"status":"live","first_seen_at":"2026-10-28T00:11:20Z","employer_posted_date":"2026-10-28","last_verified_at":"2026-10-29T14:35:37Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"Join LotusFlare as a Senior Back-End Engineer and be part of a collaborative global engineering team. You will develop, secure, and scale the back-end infrastructure that powers millions of users. Your responsibilities will include owning the full software lifecycle, working closely with product and other engineering teams, and helping teammates. The position offers benefits such as paid lunch, company stock options, a yearly bonus, training and workshops, and flexible working hours.\nMissions\nParticiper activement à toutes les étapes du cycle de vie du logiciel, y compris le développement, les tests, les revues de code et la maintenance en production.\nCollaborer avec les équipes produit et d'ingénierie pour concevoir et mettre en œuvre des systèmes distribués hautement disponibles et sécurisés.\nPrendre en charge la conception, la construction et le déploiement de services web évolutifs et sécurisés, en mettant l'accent sur les meilleures pratiques de sécurité et d'optimisation des performances.\nProfil recherché\n - In-depth understanding of distributed-systems concepts such as consistency, fault tolerance and consensus algorithms- A deep understanding of network protocols (TCP/IP, HTTP, DNS) and their impact on application performance and security\n- Strong understanding of concurrency models and their trade-offs, and experience handling concurrency challenges in high-traffic environments\n- Advanced data modeling skills in both SQL and NoSQL databases\n- A BA/BS in Computer Science, a related technical field, or equivalent practical experience would be a plus\n- We don’t require any particular language. Our stack uses Node.js, Lua and Scala, and we welcome experience in Java, Python, Go, C++ or similar\n- 8+ years designing, building and deploying highly scalable, secure web services in production\n- Expertise in RESTful API design, including API gateways, API documentation tools and API security\n- Strong knowledge of security best practices, performance optimization and fault tolerance\n- Hands-on experience with a wide range of cloud platforms and technologies, including containers (Docker, Kubernetes), serverless computing and other DevOps tools","description_format":"text","description_chars":2179,"description_truncated":false,"requirements":{"experience_years_min":8,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":true},"security_clearance":false,"languages":[]},"benefits":["Flexible schedule","Stock options"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["MVNO","Mobile Networks"],"lifecycle":[{"event":"open","at":"2026-10-28T03:29:13Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":1,"expected_fill_days":28,"reasons":["conf:4","velocity","win:early"],"computed_at":"2026-10-29T05:49:05Z"},"pay":null,"html_url":"https://alion.io/job/lotusflare-senior-back-end-engineer","json_url":"https://alion.io/job/lotusflare-senior-back-end-engineer.json","meta":{"generated_at":"2026-10-29T18:16:57Z","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":27043,"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":2479630},"rest":"https://alion.io/mcp/rest/get_company?id=2479630"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Flotusflare-senior-back-end-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%2Flotusflare-senior-back-end-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%2Flotusflare-senior-back-end-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/lotusflare-senior-back-end-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Flotusflare-senior-back-end-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3377756}},{"tool":"search_jobs","arguments":{"company":"lotusflare.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3377756},"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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