{"id":2838402,"url":"https://alion.io/job/weekday-sr-full-stack-software-engineer","title":"Sr. Full-Stack Software Engineer","company":{"id":7097,"name":"Weekday","domain":"weekday.works","url":"https://alion.io/company/weekday","size_band":"51-200","is_staffing_agency":true,"employer_type":"agency","is_intermediary":false,"listed_via":null,"ats_vendor":"Workable","truth_index":{"grade":"B","score":81,"open_postings":88,"ghost_share":0,"stale_share":0.977,"repost_share":0,"time_to_fill_p50_days":6,"computed_at":"2026-10-23T05:54:15Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"contractor","work_mode":"remote","remote_scope":"worldwide","remote_scope_basis":"posting_text","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":[],"countries":[],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":23000,"max_usd":50000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":21},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Go","optional":false},{"name":"JavaScript","optional":false},{"name":"Node JS","optional":false},{"name":"Python","optional":false},{"name":"React.js","optional":false},{"name":"Rust","optional":false},{"name":"TypeScript","optional":false}],"status":"live","first_seen_at":"2026-10-19T07:56:33Z","employer_posted_date":"2026-10-19","last_verified_at":"2026-10-23T19:34:51Z","board_verified":true,"closed_at":null,"days_open":4,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":4},"description":"This role is for one of our clients\nPay: 50-100/hour\nLocation: Global, fully remote\nJob Type: Contractor (~15 hours per week)\nSchedule: Flexible - you choose the hours and days you work, including weekends if desired, as long as there is activity.\nRequired Skills: Python, React, JavaScript, Java, Node.js, Rust, Golang, TypeScript\nWe are looking for highly skilled Full-Stack Software Engineers to contribute to an AI training project involving software development, technical problem-solving, debugging, system architecture, and code evaluation.\nWe are seeking an experienced Senior Full-Stack Software Engineer with strong hands-on expertise across both front-end and back-end development. The role involves creating, solving, reviewing, and validating complex software-engineering tasks across the application stack, as well as translating complete software implementations from one programming language to another.\nThe ideal candidate should have substantial experience building and maintaining production-grade applications, working across multiple programming languages, and understanding end-to-end system architecture. You should be comfortable navigating unfamiliar codebases, debugging complex issues, evaluating technical solutions, and ensuring code quality, performance, security, and maintainability.\nRequirements\nKey Responsibilities\nFull-Stack Development: Develop, enhance, and debug front-end and back-end components across production applications.\nFeature Implementation: Build user-facing features and the supporting services, APIs, database structures, and data models.\nEnd-to-End Troubleshooting: Trace requests and data flows across browsers, front-end applications, APIs, back-end services, databases, and third-party integrations.\nCodebase Analysis: Navigate unfamiliar repositories, understand existing application architecture, and identify dependencies and implementation patterns.\nComplex Debugging: Diagnose and resolve issues involving application state, API contracts, authentication, data persistence, network communication, and deployment.\nCross-Language Development: Evaluate, modify, translate, and improve software implementations across multiple programming languages while preserving functionality and correctness.\nCode Review and Validation: Assess AI-generated and developer-written code for correctness, completeness, efficiency, security, scalability, and maintainability.\nTechnical Problem-Solving: Design reliable solutions to challenging engineering problems and validate implementations against defined requirements and specifications.\nRequired Qualifications\nSignificant professional experience developing and maintaining production-grade full-stack applications.\nStrong hands-on expertise in both front-end and back-end software engineering.\nProfessional experience working with multiple programming languages and adapting to different technology stacks.\nSolid understanding of browser-based applications, APIs, application state management, databases, and service integrations.\nExperience designing, understanding, and contributing to the architecture of complete software systems.\nAbility to navigate unfamiliar codebases and quickly understand existing implementations.\nStrong debugging, analytical thinking, and problem-solving capabilities.\nExperience reviewing code and evaluating solutions for performance, reliability, security, and maintainability.\nAbility to work independently, manage complex technical tasks, and deliver high-quality results.\nSelection Process\nSubmit an application and complete the initial screening questions.\nParticipate in an AI interview lasting approximately 30 minutes.\nComplete a technical assessment, if required.\nProceed through the hiring manager review.\nCompensation Structure\nCompensation is output-based, with payment provided for each task that meets the specified project requirements and quality standards. Task complexity and completion time may vary depending on the nature of the work, the engineer’s experience, and their workflow.\nMinimum submission requirements apply, and selected engineers must complete and submit a specified minimum number of tasks each week.\nStart Timeline and Availability\nThe hiring process typically moves quickly, with roles often filled within 48 hours. Candidates should be available to begin immediately. Upon selection and completion of onboarding, engineers are expected to start their first tasks within 24-48 hours.","description_format":"text","description_chars":4450,"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":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-10-19T07:56:33Z"}],"visa":[],"liveness":{"score":34,"band":"fade","label":"Fading","p_open":1,"p_active":0.379,"p_room":0.9,"age_days":3,"expected_fill_days":6,"reasons":["conf:2","agency","stale_co","velocity","win:mid","comp:remote,brand"],"computed_at":"2026-10-23T05:54:15Z"},"pay":null,"html_url":"https://alion.io/job/weekday-sr-full-stack-software-engineer","json_url":"https://alion.io/job/weekday-sr-full-stack-software-engineer.json","meta":{"generated_at":"2026-10-23T20:21:35Z","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":1871,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-24T00:00:00Z"}},"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":7097},"rest":"https://alion.io/mcp/rest/get_company?id=7097"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fweekday-sr-full-stack-software-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%2Fweekday-sr-full-stack-software-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%2Fweekday-sr-full-stack-software-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/weekday-sr-full-stack-software-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fweekday-sr-full-stack-software-engineer"}]}