{"id":3520823,"url":"https://alion.io/job/thredup-senior-software-engineer-agentic-commerce","title":"Senior Software Engineer, Agentic Commerce","company":{"id":182192,"name":"Thredup","domain":"thredup.com","url":"https://alion.io/company/thredup","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":"remote","remote_scope":"stated_countries","remote_scope_basis":"inferred_payroll_markers","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":[],"countries":[],"hiring_countries":["US"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":88000,"max_usd":226000,"period":"year","method":"global_role_seniority_cell","sample_n":7767},"experience_years_min":null,"visa_sponsorship":true,"relocation_package":false,"has_equity":true,"technologies":[{"name":"Agentic Workflows","optional":false},{"name":"AI Agents","optional":false},{"name":"LLM","optional":false},{"name":"Model Context Protocol","optional":false},{"name":"Apache Kafka","optional":true},{"name":"API Gateway","optional":true},{"name":"AWS","optional":true},{"name":"GraphQL","optional":true},{"name":"Java","optional":true},{"name":"Kubernetes","optional":true},{"name":"MySQL","optional":true},{"name":"OpenSearch","optional":true},{"name":"Redis","optional":true},{"name":"Ruby","optional":true},{"name":"Ruby on Rails","optional":true},{"name":"Sidekiq","optional":true},{"name":"Terraform","optional":true}],"status":"live","first_seen_at":"2026-10-28T11:59:12Z","employer_posted_date":null,"last_verified_at":"2026-10-28T11:59:12Z","board_verified":false,"closed_at":null,"days_open":3,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":3},"description":"About ThredUp\nThredUp is transforming resale with technology and a mission to inspire the world to think secondhand first. By making it easy to buy and sell secondhand, ThredUp has become one of the world's largest online resale platforms for apparel, shoes and accessories. Sellers love ThredUp because we make it easy to clean out their closets and unlock value for themselves or for the charity of their choice while doing good for the planet. Buyers love shopping value, premium and luxury brands all in one place, at up to 90% off estimated retail price. Our proprietary operating platform is the foundation for our managed marketplace and consists of distributed processing infrastructure, proprietary software and systems and data science expertise. With ThredUp's Resale-as-a-Service, some of the world's leading brands and retailers are leveraging our platform to deliver customizable, scalable resale experiences to their customers. ThredUp has processed over 172 million unique secondhand items from 55,000 brands across 100 categories. By extending the life cycle of clothing, ThredUp is changing the way consumers shop and ushering in a more sustainable future for the fashion industry.\nRecognized on TIME Most Influential Companies of 2023, Digiday's WorkLife 50 2023, TIME's Best Inventions of 2022, and Lattice's People Success Awards 2022.\nHow You Will Make An Impact\nA generation of shoppers is starting to find what they want by asking an AI agent instead of browsing a website. The marketplaces those agents can read, understand, and buy from will win that traffic; the ones they can't won't get surfaced at all. As our first Senior Software Engineer for Agentic Commerce, you'll build the layer that makes 4 million unique secondhand items discoverable and transactable by AI shopping agents, and own how ThredUp shows up when someone asks an agent to find them a dress for a wedding.\nThis is early, open territory. The standards are young, customer behaviors are still forming, and there's no established playbook to follow. You'll partner closely with engineering and product leadership to give the space shape - working out what's worth building, making the architectural decisions together, and getting real functionality in front of customers to learn from. For the first stretch you'll be the primary engineer on this work, with broad ownership of how it comes together. You'll report to our Senior Director of Engineering.\nIn This Role You'll Get To:\nDesign and build the agentic-commerce layer end to end - from exposing our catalog, pricing, and inventory to AI shopping agents through cart, checkout, and order handoff - defining the integration surface rather than inheriting one.\nOwn how ThredUp gets discovered and surfaced by LLM-driven shopping agents, including the structured data that makes 4M+ unique, single-SKU items legible to machines.\nPrototype quickly against real agent platforms, then harden what proves out into production-grade services - working across the stack, wherever the problem lives.\nUse AI tools and agentic workflows as a core part of how you build, setting the bar for what AI-native engineering looks like at ThredUp.\nPartner with engineering, product, and executive leadership to turn an undefined space into a roadmap, carry it from idea to shipped, and let real customer usage drive what comes next.\nOur stack: Ruby on Rails, Java/JVM, MySQL, Kafka, Redis, Sidekiq, OpenSearch, AWS, Kubernetes, Terraform. Apollo GraphQL API gateway. React, PWA, native iOS and Android. No prior experience with any particular piece required.\nWhat We're Looking For:\n5+ years of software engineering experience, owning systems end to end from ambiguous problem to production.\nFluent daily use of LLMs and agentic coding tools, with strong instincts for where AI output needs human judgment.\nExperience building or deploying systems powered by LLMs, and an understanding of how model behavior shapes product experience.\nStrong API and integration design skills, for interfaces consumed by other systems rather than by people.\nDepth in backend engineering with the range to work across the stack. Design judgment matters more here than which languages you've used.\nGenuine curiosity about a space that changes monthly - new protocols, new tooling, new model capabilities - and the habit of keeping up with it.\nComfort working from a blank page without a surrounding team to make progress.\nThe judgment to scope a problem, put a plan behind it, and drive it to shipped rather than exploring indefinitely.\nClear communication with engineers and non-technical executives alike.\nFamiliarity with the Agentic Commerce Protocol (ACP), MCP, or other emerging agentic-commerce standards is a plus.\nE-commerce or marketplace experience is a plus.\nExperience having built something from zero, whether at a startup or inside a larger company is a plus.\nMany ThredUp employees also have the opportunity to own shares of ThredUp stock, ThredUp employees are eligible for discretionary restricted stock unit awards, as well as a discount when purchasing ThredUp stock if voluntarily participating in ThredUp's Employee Stock Purchase Plan. Subject to eligibility requirements, you'll also receive other benefits: Comprehensive medical & dental coverage, vision, 401k, life and disability insurance.\nThis role is not eligible for visa sponsorship.\nWhat We Offer:\n4-day work week, with most Fridays off\n\nCompetitive salary (we leverage market data)\n\nMany ThredUp employees also have the opportunity to own shares of ThredUp stock and are eligible for discretionary restricted stock unit awards\n\nEmployee stock purchase plan\n\nFlexible PTO (take the time you need) + 13 company holidays\n\nPaid Sabbatical after 3 years of full time employment\n\nGenerous paid parental leave for new mothers and fathers\n\nMedical, dental, vision, 401k, life and disability insurance offered\n\nWe live by our Core Values of Transparency, SpeakingUP, Thinking Big, Infinite Learning, Influencing Outcomes & Seeking the Truth\n\nWe believe diversity, inclusion and belonging is key for our team\nAt ThredUp, our mission has been built on extending the lives of millions of unique clothing items. Much like our inventory, we are proud to have fostered a workplace that is one-of-a-kind. As a company focused on diversity, inclusion and belonging, we are committed to ensuring our employees are comfortable bringing their authentic selves to work every day. A unique perspective is critical to solving complex problems and inspiring a new generation to think secondhand first. Be you.\nIf you are a candidate with a disability and have a reasonable accommodation request for the job application process, please email \n the specific details of your disability related accommodation request. This email address is reserved for candidates with disabilities only. General application inquiries will not receive a response.","description_format":"text","description_chars":6945,"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":["401k plan","Parental leave"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Commerce","Marketplaces","Retail & Shop Systems","Apparel & Fashion Brands"],"lifecycle":[{"event":"open","at":"2026-10-30T11:59:11Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 3 · green card filings: 1","filings_12m":3,"filings_prev_12m":8,"green_card_filings_12m":1,"median_offered_wage_usd":177500,"route":null,"cap_exempt":false,"checked_at":"2026-10-29T16:27:21+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)","US Department of Labor: PERM disclosure data (green cards)"],"filings_for_role_12m":0}],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":2,"expected_fill_days":29,"reasons":["seen:2","win:early"],"computed_at":"2026-10-31T05:58:55Z"},"pay":null,"html_url":"https://alion.io/job/thredup-senior-software-engineer-agentic-commerce","json_url":"https://alion.io/job/thredup-senior-software-engineer-agentic-commerce.json","meta":{"generated_at":"2026-11-01T02:06:07Z","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":3119,"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":182192},"rest":"https://alion.io/mcp/rest/get_company?id=182192"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fthredup-senior-software-engineer-agentic-commerce"},{"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%2Fthredup-senior-software-engineer-agentic-commerce"},{"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%2Fthredup-senior-software-engineer-agentic-commerce"},{"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/thredup-senior-software-engineer-agentic-commerce\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fthredup-senior-software-engineer-agentic-commerce"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3520823}},{"tool":"search_jobs","arguments":{"company":"thredup.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3520823},"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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