{"id":709753,"url":"https://alion.io/job/endra-software-engineer-core","title":"Software Engineer - Core","company":{"id":673453,"name":"Endra AI","domain":"endra.ai","url":"https://alion.io/company/endra","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"B","score":81,"open_postings":9,"ghost_share":0,"stale_share":0.778,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-09-29T05:45:00Z"}},"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":["Stockholm, Sweden"],"countries":["SE"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":57000,"max_usd":157000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":4821},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Python","optional":false},{"name":"GCP","optional":true},{"name":"JavaScript","optional":true},{"name":"PostgreSQL","optional":true},{"name":"Svelte","optional":true},{"name":"TypeScript","optional":true},{"name":"WebAssembly","optional":true}],"status":"live","first_seen_at":"2026-04-22T08:24:36Z","employer_posted_date":"2026-04-22","last_verified_at":"2026-09-30T02:06:34Z","board_verified":true,"closed_at":null,"days_open":160,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":159},"description":"At Endra, our vision is to produce software of exceptional quality. Attaining this standard requires both talent and ownership. We seek individuals who care deeply about the quality of the software we deliver, whether their focus is engineering, design, support, or sales.\nJoin our small and talented team as one of our early engineers. You’ll own key systems at the intersection of geometry, optimization, and MEP; shaping architecture and engineering practices as we scale. We’re looking for people who care deeply about their craft, take ownership of complex problems, push us to think bigger, and are driven to create something with lasting impact.\nWhat we’re looking for\n5+ years of experience in modern C++ developing complex systems, with strong proficiency in Python.\n\nSkills within backend architecture, system design, memory management, and interoperability between C++ and Python.\n\nExperience with cloud infrastructure, API design, CAD/BIM is considered a plus.\n\nDemonstrates a mindset characterized by ownership, efficiency, and clear communication.\n\nStrives to maintain a balance between technical excellence and pragmatism, selecting solutions that effectively address current problems without introducing unnecessary complexity.\n\nFluent in English.\n\nWhat you'll do\nDevelop and maintain high-performance C++ core services and Python integrations.\n\nArchitect the foundational framework supporting our generative workflows.\n\nEnsure system reliability, scalability, and efficiency throughout our hybrid technology stack.\n\nCollaborate with Optimization and Product teams to integrate new capabilities.\n\nContribute to the establishment of code standards, testing protocols, and the enhancement of the developer experience.\n\nOur current tech stack\nCore Logic (C++23): A high-performance, modern C++23 codebase developed from scratch. It underpins our system with geometric primitives, advanced optimization algorithms, and the core business logic essential for our MEP (Mechanical, Electrical, Plumbing) decision-making and validation frameworks.\n\nBackend Services (Python/GCP): A lightweight asynchronous Python API deployed on GCP. It manages database interactions (Postgres), generates required reports, and interfaces with our high-speed C++ Core library.\n\nFrontend Interface (Svelte/TypeScript/WebAssembly): A compact, high-performance CAD application delivered directly in the user's browser. It is built using Svelte, extensive custom TypeScript, and WebAssembly components, ensuring a minimal, clean, and highly responsive user experience.\n\nHow we operate\nLess is more: We simplify and ship smaller, fast.\n\nBuild the right things: We listen carefully and build what users actually need.\n\nVelocity & Quality: We build things that last, but we don’t perfect them forever.\n\nTrust & Collaboration: Strong opinions, loosely held.\n\nWhat We Offer\nCompetitive salary and equity.\n\nEmployee-friendly equity terms.\n\nPrivate health insurance.\n\nRegular team events and off-sites.\n\nSix weeks of paid vacation.\n\nAn inspiring, ambitious, and global work environment.\n\nReady to move the needle?\nDo you feel this is your opportunity to do your most meaningful work and reshape an entire industry? Let's talk!","description_format":"text","description_chars":3206,"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":[{"language":"English","level":"Advanced (C1)","optional":false}]},"benefits":["Equity","Health insurance"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-09-11T04:27:05Z"}],"liveness":{"score":9,"band":"cold","label":"Long shot","p_open":1,"p_active":0.321,"p_room":0.28,"age_days":159,"expected_fill_days":42,"reasons":["conf:6","win:tail","crowd:"],"computed_at":"2026-09-29T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/endra-software-engineer-core","json_url":"https://alion.io/job/endra-software-engineer-core.json","meta":{"generated_at":"2026-09-30T02:51:26Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":2068,"day_limit":5000,"remaining_today":2932,"minute_limit":60,"resets_at":"2026-10-01T00:00:00Z"}}}