{"id":430,"url":"https://alion.io/job/constructor-software-engineer-core","title":"Software Engineer: Core","company":{"id":716274,"name":"Constructor","domain":"constructor.com","url":"https://alion.io/company/constructor-3","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"A","score":89,"open_postings":26,"ghost_share":0.038,"stale_share":0,"repost_share":0.269,"time_to_fill_p50_days":80,"computed_at":"2026-11-07T05:47:08Z"}},"role":"Backend","role_family":"Backend","seniority":null,"employment_type":"full_time","work_mode":"remote","remote_scope":"stated_regions","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":[],"countries":[],"hiring_countries":["GB","DE","FR","AE","AT","BE","BA","BG","HR","CY","CZ","DK","FI","HU","IE","IL","IT","KE","ME","NL","NG","NO","PL","RO","SA","RS","ZA","ES","SE","CH","TR","UA","AL","DZ","AD","AO","BH","BJ","BW","BF"],"hiring_countries_total":116,"salary":{"min":80000,"max":120000,"currency":"USD","period":"year","gross":null,"usd_annual":120000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"A/B Testing","optional":true},{"name":"AWS","optional":true},{"name":"C++","optional":true},{"name":"CI/CD","optional":true},{"name":"GitHub Actions","optional":true},{"name":"Grafana","optional":true},{"name":"Jenkins","optional":true},{"name":"Prometheus","optional":true},{"name":"Python","optional":true},{"name":"Rust","optional":true}],"status":"live","first_seen_at":"2026-06-04T10:01:47Z","employer_posted_date":"2026-06-04","last_verified_at":"2026-11-07T11:20:18Z","board_verified":true,"closed_at":null,"days_open":156,"trust":{"level":"ghost","repost_count":3,"flags":["repost"],"days_open":155},"description":"About Us\nConstructor is the next-generation platform for search and discovery in ecommerce, built to explicitly optimize for metrics like revenue, conversion rate, and profit. Our search engine is entirely invented in-house utilizing transformers and generative LLMs, and we use its core and personalization capabilities to power everything from search itself to recommendations to shopping agents. Engineering is by far our largest department, and we’ve built our proprietary engine to be the best on the market, having never lost an A/B test to a competitive technology. We’re passionate about maintaining this and work on the bleeding edge of AI to do so.\nOut of necessity, our engine is built for extreme scale and powers over 1 billion queries every day across 150 languages and roughly 100 countries. It is used by some of the biggest ecommerce companies in the world like Sephora, Under Armour, and Petco.\nWe’re a passionate team who love solving problems and want to make our customers’ and coworkers’ lives better. We value empathy, openness, curiosity, continuous improvement, and are excited by metrics that matter. We believe that empowering everyone in a company to do what they do best can lead to great things.\nConstructor is a U.S. based company that has been in the market since 2019. It was founded by Eli Finkelshteyn and Dan McCormick who still lead the company today.\nThe Team\nThe Core Team sits at the heart of Constructor, shaping Constructor’s in-house search engine, where user requests meet customer catalogs and Constructor’s learnings. We build and operate the foundational systems that power every request flowing through the platform, enabling fast, reliable, and intelligent interactions at massive scale.\nOur systems handle billions of requests daily with exceptional uptime, and we take pride in delivering a highly scalable, resilient, and globally distributed platform. As part of the Core team, you will help design, build, and maintain the critical infrastructure and services that underpin the entire product, ensuring performance, stability, and reliability across the globe.\nRequirements\nYou’ll thrive in this role if you:\nHave a strong foundation in computer science, including algorithms, data structures, concurrency, and systems design.\n\nHave experience building and scaling high-traffic, high-availability backend systems.\n\nHave experience designing and operating backend infrastructure, including deployment automation, capacity planning, and observability.\n\nAre comfortable working across different layers of the stack, from performance-critical code to production operations.\n\nEnjoy learning new technologies and tools in a fast-moving, large-scale environment.\n\nCollaborate effectively and contribute to a positive, ownership-driven team culture.\n\nOur Tech Stack\nLanguages: Rust, C++, Python\n\nCloud Infrastructure: AWS\n\nCI/CD: Jenkins, GitHub Actions\n\nMonitoring & Observability: Prometheus, Grafana\n\nBenefits\nUnlimited vacation time - we strongly encourage all of our employees take at least 3 weeks per year\n\nFully remote team - choose where you live\n\nWork from home stipend! We want you to have the resources you need to set up your home office\n\nApple laptops provided for new employees\n\nTraining and development budget for every employee, refreshed each year\n\nMaternity & Paternity leave for qualified employees\n\nWork with smart people who will help you grow and make a meaningful impact\n\nBase salary: $80k-$120k USD, depending on knowledge, skills, experience, and interview results\n\nStock options - offered in addition to the base salary\n\nRegular team offsites to connect and collaborate\n\nDiversity, Equity, and Inclusion at Constructor\nAt Constructor.io we are committed to cultivating a work environment that is diverse, equitable, and inclusive. 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