{"id":862465,"url":"https://alion.io/job/dottxt-staff-parsercompiler-research-engineer","title":"Staff Parser/Compiler Research Engineer","company":{"id":720119,"name":"Dottxt","domain":"dottxt.ai","url":"https://alion.io/company/dottxt-2","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":null},"role":"AI/ML","role_family":"AI/ML","seniority":"staff","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"posting_text","remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":[],"countries":[],"hiring_countries":["US"],"hiring_countries_total":1,"salary":{"min":160000,"max":210000,"currency":"USD","period":"year","gross":null,"usd_annual":210000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"C++","optional":false},{"name":"LLM","optional":false},{"name":"Python","optional":false},{"name":"Rust","optional":false}],"status":"live","first_seen_at":"2026-09-02T16:16:11Z","employer_posted_date":"2026-09-02","last_verified_at":"2026-11-07T12:36:11Z","board_verified":true,"closed_at":null,"days_open":65,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":65},"description":".txt builds structured generation: we make language models produce output that follows a given format, by deciding at every decoding step which tokens are allowed. We compile a JSON Schema, a regex, a grammar, a list of function definitions or a policy into that decision, fast enough to run inside the decoding loop. This is how .txt builds reliable and safe agents. We're looking for a developer to work on the parsers and compilers at the center of it.\n Responsibilities\nDesign and Develop: Craft high-performance parsers and data structures that integrate with LLMs.\n\nProblem Solving: Research advanced parser and compiler technology and symbolic methods.\n\nWriting Quality Code: Ensure the reliability and efficiency of our methods through rigorous testing and optimization.\n\nStay Ahead: Learn the latest, relevant LLM advancements.\n\nQualifications\nYou know Python at a professional level and have practical experience with \"lower-level\" languages (e.g. C/C++, Rust)\n\nYou have worked directly with parsers (e.g. Earley, LALR(1)), formal grammars, finite-state machines, and implemented efficient data structures. You are also capable of doing research and development in those areas.\n\nYou are familiar with our relevant technical report and open-source project.\n\nYou value simplicity, testing, and automation, and you can demonstrate this.\n\nYou communicate clearly, concisely, and consistently in written form.\n\nWhy you should join us:\nThe problem matters\nEvery agent that takes real actions needs a layer that guarantees it can only do what it was asked. The parser and compiler work in this role is what enables this guarantee.\nRemote first\nWork from anywhere in the world. We communicate mostly in writing and favor occasional organic discussions over recurring large team meetings.\nCompetitive compensation and benefits\nMarket-rate salary plus stock options, health and dental insurance, and a 401(k) for US employees. We'll also get you a GPU if you don't have one.\nLocation\n.txt is a fully remote company with the majority of the team in the US and EU.\nFor this role, you must be based in the US.\nApplying\nPlease provide a 1-page resume in English.\nOnly apply to one position at a time.","description_format":"text","description_chars":2196,"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":["Dental insurance","Stock options"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Machine Learning","AI Development Tools"],"lifecycle":[{"event":"open","at":"2026-09-13T10:56:41Z"}],"visa":[{"country":"US","licensed_sponsor":true,"adverts_offering_sponsorship_24m":0,"sanctioned_now":false,"evidence":"H-1B filings in 12 months: 1","filings_12m":1,"filings_prev_12m":1,"green_card_filings_12m":0,"median_offered_wage_usd":212500,"route":null,"cap_exempt":false,"checked_at":"2026-11-07T07:57:00+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)"],"filings_for_role_12m":1}],"liveness":{"score":20,"band":"cold","label":"Long shot","p_open":1,"p_active":0.55,"p_room":0.36,"age_days":65,"expected_fill_days":40,"reasons":["conf:1","win:tail","crowd:"],"computed_at":"2026-11-07T05:47:08Z"},"pay":{"stated_usd_annual":210000,"is_top_pay":false},"html_url":"https://alion.io/job/dottxt-staff-parsercompiler-research-engineer","json_url":"https://alion.io/job/dottxt-staff-parsercompiler-research-engineer.json","meta":{"generated_at":"2026-11-07T12:36:59Z","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":14336,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-08T00:00:00Z"}},"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":720119},"rest":"https://alion.io/mcp/rest/get_company?id=720119"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fdottxt-staff-parsercompiler-research-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%2Fdottxt-staff-parsercompiler-research-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%2Fdottxt-staff-parsercompiler-research-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/dottxt-staff-parsercompiler-research-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fdottxt-staff-parsercompiler-research-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":862465}},{"tool":"search_jobs","arguments":{"company":"dottxt.ai","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":862465},"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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