{"id":2838399,"url":"https://alion.io/job/weekday-senior-software-engineer-9","title":"Senior 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":90,"ghost_share":0,"stale_share":0.978,"repost_share":0,"time_to_fill_p50_days":6,"computed_at":"2026-10-26T05:57:25Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"contractor","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":[],"countries":[],"hiring_countries":["US","IN"],"hiring_countries_total":2,"salary":null,"salary_estimate":{"min_usd":23000,"max_usd":49000,"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":"C++","optional":false},{"name":"Go","optional":false},{"name":"Java","optional":false},{"name":"Node JS","optional":false},{"name":"Python","optional":false},{"name":"Rust","optional":false},{"name":"TypeScript","optional":false},{"name":"CI/CD","optional":true},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-10-19T07:56:33Z","employer_posted_date":"2026-10-19","last_verified_at":"2026-10-26T19:42:43Z","board_verified":true,"closed_at":null,"days_open":7,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":7},"description":"This role is for one of our clients\nPay: 30-100/hour\nJob Type: Contractor (~15 hrs a week)\nLocation: Remote\nSchedule: Flexible, you pick the hours and days (including weekends if desired)\nRequired Skills: Python3, Java, Rust, Algorithms, Basics of C++, TypeScript, Bug fixing, Feature implementation, Codebase refactoring, Performance optimization\nWe are seeking an experienced Senior Software Engineer to contribute to the training and evaluation of next-generation artificial intelligence systems. This role is ideal for engineers with strong backend development expertise, excellent problem-solving abilities, and a proven track record of building reliable, scalable, and high-performance software.\nYou will design realistic and challenging coding tasks that assess AI systems' ability to implement features, fix bugs, refactor existing code, and optimize application performance. You will also develop deterministic verification mechanisms that accurately validate solutions, accepting reasonable implementations that meet the requirements while rejecting incorrect or incomplete submissions.\nThe role requires strong software engineering judgment, extensive debugging experience, and a solid understanding of testing methodologies. Previous AI experience is not required; your technical expertise and independent judgment are what matter most.\nRequirements\nKey Responsibilities\nCoding Task Development: Design challenging, real-world software engineering problems involving feature implementation, bug fixes, code refactoring, and performance optimization.\nReference Solution Development: Create high-quality reference implementations that demonstrate correct, efficient, and maintainable approaches to solving technical problems.\nAutomated Verification: Build deterministic verifiers, validation scripts, and comprehensive test cases to evaluate solution correctness and ensure reliable task assessment.\nBackend Engineering: Apply expertise in backend development, scalable services, APIs, asynchronous processing, and distributed systems to create realistic engineering challenges.\nDebugging and Troubleshooting: Analyze complex software defects, investigate system bottlenecks, and identify root causes of unexpected behavior.\nTesting Strategy and Quality Assurance: Design effective testing strategies, develop and maintain large test suites, diagnose flaky tests, and improve overall software quality.\nCode Review: Evaluate code for correctness, readability, maintainability, performance, security, and adherence to engineering best practices.\nRefactoring and Optimization: Develop tasks that assess an AI system's ability to improve legacy code, simplify complex implementations, and optimize resource utilization.\nTechnical Reasoning Assessment: Evaluate AI-generated reasoning related to architecture, debugging, algorithms, system design, and implementation decisions.\nTechnical Documentation: Document task requirements, expected behavior, test coverage, solution approaches, and verification criteria clearly and consistently.\n Continuous Improvement: Analyze model failures and refine coding tasks and evaluation methods to improve the quality and reliability of AI-generated software.\nRequired Qualifications\nStrong professional experience in software engineering, particularly backend development and production-grade systems.\nProficiency in one or more programming languages, including Java, Node.js, Go, Rust, TypeScript, Python, C++, or similar technologies.\nProven experience designing, building, and maintaining scalable services and APIs.\nStrong understanding of data structures, algorithms, system design, and fundamental computer science concepts.\nExtensive experience with debugging, troubleshooting, performance optimization, and code review.\nPractical experience with automated testing, test design, and software quality assurance.\nAbility to identify implementation defects, edge cases, inefficient algorithms, and architectural weaknesses.\nStrong understanding of code maintainability, refactoring, reliability, and software engineering best practices.\nExcellent analytical, problem-solving, and technical communication skills.\nAbility to work independently and exercise sound technical judgment when evaluating complex engineering problems.\nMust-Have Skills\nSenior Software Engineering\nBackend Development\nScalable Services and API Design\nJava, Node.js, Go, Rust, TypeScript, Python, or C++\nData Structures and Algorithms\nDebugging and Root-Cause Analysis\nAutomated Testing and Test Strategy\nCode Review and Refactoring\nPerformance Optimization\nTechnical Problem-Solving\nGood-to-Have Skills\nLarge-Scale Test Suite Design and Maintenance\nFlaky Test Diagnosis and Resolution\nTest Automation Frameworks\nContinuous Integration and Continuous Delivery (CI/CD)\nDistributed Systems and Microservices\nSystem Architecture and Design Patterns\nRegression, Integration, and Unit Testing\nDeterministic Evaluation and Automated Verification\nAI Coding Agent Evaluation\nLegacy System Modernization\nProduction Reliability and Performance Engineering\nPreferred Qualifications\nDemonstrated success delivering scalable, reliable, and high-performance backend applications.\nExperience resolving complex software defects and improving system performance.\nProven ability to implement complex features and refactor large codebases.\nStrong background in test strategy, automated validation, and improving engineering quality standards.\nExperience establishing testing best practices across engineering teams.\nAbility to translate complex engineering requirements into clear, reproducible coding tasks and evaluation criteria.\nSelection Process\nApplication: Submit your application and complete the required screening questions.\nAI Interview: Complete an approximately 30-minute interview focused on your technical expertise and problem-solving approach.\nTechnical Assessment: Complete a technical assessment if required.\nHiring Manager Review: Your technical background, assessment results, and suitability for the project will be reviewed.\n Onboarding: Selected candidates receive the necessary instructions and resources to begin their assignments.\nCandidates are expected to complete interviews and assessments independently, without assistance from AI tools or other individuals. The same principle applies to project assignments, where the quality of the work depends on each engineer's own expertise and judgment.\nCompensation Structure\nCompensation is output-based, with payment provided for tasks that meet the defined project specifications and acceptance criteria. Completion time may vary based on task complexity, individual experience, and workflow.\nMinimum submission requirements apply, and participants are expected to complete a specified minimum number of tasks per week.\nStart Timeline and Availability\nThe selection process typically moves quickly, with roles often filled within approximately 48 hours. Successful candidates should be prepared to begin their first tasks within 24-48 hours of completing onboarding.","description_format":"text","description_chars":7044,"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":[{"name":"United States","iso":"US","kind":"country"},{"name":"India","iso":"IN","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-10-19T07:56:33Z"}],"visa":[],"liveness":{"score":20,"band":"cold","label":"Long shot","p_open":1,"p_active":0.362,"p_room":0.55,"age_days":6,"expected_fill_days":6,"reasons":["conf:0","agency","stale_co","velocity","win:tail","comp:brand"],"computed_at":"2026-10-26T05:57:25Z"},"pay":null,"html_url":"https://alion.io/job/weekday-senior-software-engineer-9","json_url":"https://alion.io/job/weekday-senior-software-engineer-9.json","meta":{"generated_at":"2026-10-26T19:46:59Z","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":26569,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-27T00:00:00Z"}},"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-senior-software-engineer-9"},{"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-senior-software-engineer-9"},{"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-senior-software-engineer-9"},{"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-senior-software-engineer-9\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fweekday-senior-software-engineer-9"}]}