{"id":589910,"url":"https://alion.io/job/coupang-staff-backend-engineerinfrastructure","title":"Staff Backend Engineer(Infrastructure)","company":{"id":239,"name":"Coupang","domain":"coupang.com","url":"https://alion.io/company/coupang","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":87,"open_postings":130,"ghost_share":0.062,"stale_share":0.123,"repost_share":0.1,"time_to_fill_p50_days":80,"computed_at":"2026-10-17T05:46:00Z"}},"role":"Backend","role_family":"Backend","seniority":"staff","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":["Singapore"],"countries":["SG"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":78000,"max_usd":160000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":14},"experience_years_min":12,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AWS","optional":false},{"name":"Java","optional":false},{"name":"Self-Healing","optional":false},{"name":"Spring Framework","optional":false},{"name":"Cassandra","optional":true},{"name":"Kubernetes","optional":true},{"name":"Python","optional":true},{"name":"TiDB","optional":true}],"status":"live","first_seen_at":"2026-07-07T02:55:44Z","employer_posted_date":"2026-10-02","last_verified_at":"2026-10-17T17:24:33Z","board_verified":true,"closed_at":null,"days_open":102,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":102},"description":"Description\nWe exist to wow our customers. We know we’re doing the right thing when we hear our customers say, “How did we ever live without Coupang?” Born out of an obsession to make shopping, eating, and living easier than ever, we’re collectively disrupting the multi-billion-dollar e-commerce industry from the ground up. We are one of the fastest-growing e-commerce companies that established an unparalleled reputation for being a dominant and reliable force in South Korean commerce.\nWe are proud to have the best of both worlds - a startup culture with the resources of a large global public company. This fuels us to continue our growth and launch new services at the speed we have been since our inception. We are all entrepreneurs surrounded by opportunities to drive new initiatives and innovations. At our core, we are bold and ambitious people that like to get our hands dirty and make a hands-on impact. At Coupang, you will see yourself, your colleagues, your team, and the company grow every day.\nOur mission to build the future of commerce is real. We push the boundaries of what’s possible to solve problems and break traditional tradeoffs. Join Coupang now to create an epic experience in this always-on, high-tech, and hyper-connected world.\nRole Overview\nAs part of our Application Infrastructure org, this is a greenfield team that will impact complex Coupang workflow systems. We need to create a set of systems that will allow rapid workflow development for hundreds of domain teams, allowing critical infrastructure like rocket delivery service. It is a highly visible system with hundreds of millions of dollars of revenue flowing through the systems. It is a chance to design from scratch, and create a reliable workflow service at scale.\nWe are looking for a Senior/Staff Engineer to lead the architectural design and implementation of our next-generation durable execution platform. This team is tasked with building a highly scalable, fault-tolerant system from scratch that enables developers to write long-running, reliable workflows as code.\nAt Coupang, we Aim High and Find a Way to solve impossible problems. You will be responsible for building a system that doesn't just meet industry standards but sets them, ensuring 5-6 nines availability while leveraging AI to automate complex system behaviors and self-healing capabilities\nWhat You Will Do\nDefine Extreme Availability : Design for \"5-6 nines\" (99.9999% availability). You will Dive Deep into the tail latencies and edge cases of distributed state management to ensure our platform is always on for our customers.\nAI-Driven Automation: Integrate AI/ML models to automate system functionality, including predictive scaling, automated bottleneck detection, and intelligent error recovery, ensuring we Wow the Customer through seamless platform performance and availability.\nSolve Hard Problems: Address challenges related to distributed locking, timers, and deterministic execution. You must Be Data-Driven to validate architectural decisions against massive traffic patterns.\nStakeholder management - Work cross functionally with our product teams to provide infrastructure which serves the company’s business needs\nBasic Qualifications\nBachelor's degree in computer science, Electrical Engineering, Math, or a closely related field\n8 years+ of experience in backend software development\nProficiency in Java and the Spring Framework\nExperience working in cloud environments, particularly AWS\nDemonstrated experience in building and maintaining highly available, distributed systems\nPreferred Qualifications\nExtensive Experience: 12+ years of professional software development experience, specifically building backend infrastructure that supports global-scale traffic.\nHigh Availability Mastery: Proven track record of managing and maintaining systems with 5-6 nines of availability. You understand that \"good enough\" isn't enough; we Focus on the Customer and the Experience by ensuring zero downtime.\nDistributed Systems Expert : Deep expertise in designing and deploying mission-critical systems (e.g., databases, messaging queues, or orchestration engines) from the ground up.\nTechnical Mastery: Expert-level proficiency in Java, Python with deep understanding of concurrency and memory management.\nAI Integration: Experience or a strong architectural vision for using AI/ML to automate system-level functionality and operational tasks.\nSpecialized Knowledge: Deep familiarity with the Temporal or Cadence programming models and their underlying architecture. Experience in Kubernetes and containerization.\nStateful Database Experience: Experience with Cassandra and TiDB preferred\nObservability Expert: Expertise in building highly observable systems using distributed tracing and advanced telemetry to proactively identify issues.\nRecruitment Process\nApplication Review - Job Fit Interview - Focus Interview - Offer \nThe exact nature of the recruitment process may vary according to the specific job and may be changed due to scheduling or other circumstances. \nInterview schedules and the results will be informed to the applicant via the e-mail address submitted at the application stage. \n\nDetails to Consider \nThis role is open to Singapore Citizens and Permanent Residents only \nThis job posting may be closed prior to the stated end date for application if all openings are filled. \nCoupang has the right to rescind an offer of employment if a candidate is found to have submitted false information as part of the application process. \nThose eligible for employment protection (recipients of veteran’s benefits, the disabled, etc.) may receive preferential treatment for employment in accordance with applicable laws. \nJob titles and responsibilities may be subject to change depending on the candidate’s overall experience, etc. This will be communicated to the candidate at the appropriate time before the offer. \nHiring may be restricted in case the legal qualifications required for hiring and work performance is not met. \nPrivacy Notice \nYour personal information will be collected and managed by Coupang as stated in the Application Privacy Notice located below. \n\nhttps://privacy.coupang.com/en/land/jobs/","description_format":"text","description_chars":6217,"description_truncated":false,"requirements":{"experience_years_min":12,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"Singapore","iso":"SG","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Commerce","E-commerce Platforms","Delivery","Marketplaces"],"lifecycle":[{"event":"open","at":"2026-09-10T09:39:18Z"}],"visa":[],"liveness":{"score":32,"band":"fade","label":"Fading","p_open":1,"p_active":0.732,"p_room":0.44,"age_days":102,"expected_fill_days":80,"reasons":["conf:0","velocity","win:tail","crowd:brand"],"computed_at":"2026-10-17T05:46:00Z"},"pay":null,"html_url":"https://alion.io/job/coupang-staff-backend-engineerinfrastructure","json_url":"https://alion.io/job/coupang-staff-backend-engineerinfrastructure.json","meta":{"generated_at":"2026-10-17T18:59:06Z","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":2057,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-18T00:00:00Z"}},"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":239},"rest":"https://alion.io/mcp/rest/get_company?id=239"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fcoupang-staff-backend-engineerinfrastructure"},{"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%2Fcoupang-staff-backend-engineerinfrastructure"},{"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%2Fcoupang-staff-backend-engineerinfrastructure"},{"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/coupang-staff-backend-engineerinfrastructure\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fcoupang-staff-backend-engineerinfrastructure"}]}