{"id":1829571,"url":"https://alion.io/job/atlassian-senior-machine-learning-systems-engineer-2","title":"Senior Machine Learning Systems Engineer","company":{"id":182,"name":"Atlassian","domain":"atlassian.com","url":"https://alion.io/company/atlassian","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Career site","truth_index":null},"role":"AI/ML","role_family":"AI/ML","seniority":"senior","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_regions","remote_scope_basis":"inferred_payroll_markers","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":[],"countries":[],"hiring_countries":["US","AR","BR","CA","MX","AG","AW","BS","BB","BZ","BM","BO","VG","BQ","KY","CL","CR","CW","DM","DO","EC","SV","FK","GF","GL","GD","GP","GT","GY","HT","HN","JM","MQ","MS","NI","PA","PY","PE","PR","KN"],"hiring_countries_total":48,"salary":null,"salary_estimate":{"min_usd":147000,"max_usd":321000,"period":"year","method":"global_role_seniority_cell","sample_n":1757},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"CI/CD","optional":false},{"name":"Knowledge Distillation","optional":false},{"name":"KV Cache","optional":false},{"name":"Machine Learning","optional":false},{"name":"Model Distillation","optional":false},{"name":"Quantization","optional":false},{"name":"Rust","optional":false},{"name":"SGLang","optional":false},{"name":"Speculative Decoding","optional":false},{"name":"TensorRT-LLM","optional":false},{"name":"Triton","optional":false},{"name":"vLLM","optional":false},{"name":"TensorRT","optional":true}],"status":"live","first_seen_at":"2026-10-04T11:58:41Z","employer_posted_date":"2026-10-04","last_verified_at":"2026-10-06T19:39:27Z","board_verified":true,"closed_at":null,"days_open":2,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":2},"description":"Working at Atlassian\nAtlassians can choose where they work - whether in an office, from home, or a combination of the two. That way, Atlassians have more control over supporting their family, personal goals, and other priorities. We can hire people in any country where we have a legal entity.\nAbout the Central AI Org\nOur organization is dedicated to driving AI innovation across all Atlassian products and platforms. We aim to deliver seamless AI experiences while establishing a robust Atlassian AI infrastructure for the future. Our purpose is to:\nDevelop horizontal AI capabilities and infrastructure that can be leveraged across all products.\n\nEstablish a centralized Search, Q&A, and Conversational AI system that integrates seamlessly with all Atlassian products.\n\nExplore integrating Atlassian products with AI solutions beyond the Atlassian ecosystem.\n\nAbout the AI & ML Platform Team\nOur team’s goal is to build the foundations to democratize AI and Machine Learning for Atlassian’s teams, customers, and ecosystem. We aim to build productive, reliable tools that empower Atlassian teams to harness AI. These tools will facilitate the development, deployment, measurement, and operation of AI & ML models and experiences.\n\nResponsibilities\nAbout This Role\nAs a Senior ML System Engineer on the AI & ML Platform’s Inference team, you will design and optimize large-scale model serving systems end-to-end. You will own everything from distributed infrastructure (global KV cache, continuous batching, load balancing, auto-scaling) to deep low-level optimizations (GPU kernels, quantization, speculative decoding). In this role, you are expected to:\nArchitect and implement scalable distributed infrastructure for model serving (load balancing, auto-scaling, batch scheduling, global KV cache).\n\nOptimize latency and throughput of model inference under real production workloads.\n\nBuild reliable, high-concurrency serving systems that serve billions of requests reliably\n\nBenchmark, fine-tune, and accelerate inference engines.\n\nCreate robust CI/CD infrastructure for seamless model deployment and inference engine updates.\n\nPartner with senior ML engineers to fine-tune open-source LLMs and deploy\n\nQualifications\nOn your first day, we’ll expect you to have\n5+ years of software engineering experience, 2+ years of system performance optimization experience\n\nDeep low-level systems programming (C/C++ or Rust)\n\nExperience with large-scale, high-concurrent production serving.\n\nExperience with GPU inference engines (vLLM, SGLang, Triton, TensorRT-LLM, etc.).\n\nStrong background in system optimizations: batching, caching, load balancing, parallelism.\n\nIt would be great, but not required if you have\nLow-level inference optimizations: GPU kernels\n\nAlgorithmic inference optimizations: quantization, speculative decoding, distillation\n\nExperience with testing, benchmarking, and reliability of inference services.\n\nExperience designing and implementing CI/CD infrastructure for inference.\n\nBenefits & Perks\nAtlassian offers a wide range of perks and benefits designed to support you, your family and to help you engage with your local community. Our offerings include health and wellbeing resources, paid volunteer days, and so much more. To learn more, visit\ngo.atlassian.com/perksandbenefits.\nAbout Atlassian\nAt Atlassian, we're motivated by a common goal: to unleash the potential of every team. Our software products help teams all over the planet and our solutions are designed for all types of work. Team collaboration through our tools makes what may be impossible alone, possible together.\nWe believe that the unique contributions of all Atlassians create our success. To ensure that our products and culture continue to incorporate everyone's perspectives and experience, we never discriminate based on race, religion, national origin, gender identity or expression, sexual orientation, age, or marital, veteran, or disability status. All your information will be kept confidential according to EEO guidelines.To provide you the best experience, we can support with accommodations or adjustments at any stage of the recruitment process. Simply inform our Recruitment team during your conversation with them.\nTo learn more about our culture and hiring process, visit go.atlassian.com/crh . In line with local law, identity verification (which may include use of biometric data) is a condition of employment with Atlassian for employment fraud purposes.","description_format":"text","description_chars":4468,"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":[]},"benefits":[],"hiring_locations":[{"name":"United States","iso":"US","kind":"region"},{"name":"Argentina","iso":"AR","kind":"region"},{"name":"Brazil","iso":"BR","kind":"region"},{"name":"Canada","iso":"CA","kind":"region"},{"name":"Colombia","iso":null,"kind":"region"},{"name":"Mexico","iso":"MX","kind":"region"},{"name":"Anguilla","iso":null,"kind":"region"},{"name":"Antigua and Barbuda","iso":"AG","kind":"region"},{"name":"Aruba","iso":"AW","kind":"region"},{"name":"Bahamas","iso":"BS","kind":"region"},{"name":"Barbados","iso":"BB","kind":"region"},{"name":"Belize","iso":"BZ","kind":"region"},{"name":"Bermuda","iso":"BM","kind":"region"},{"name":"Bolivia","iso":"BO","kind":"region"},{"name":"British Virgin Islands","iso":"VG","kind":"region"},{"name":"Bonaire, Sint Eustatius and Saba","iso":"BQ","kind":"region"},{"name":"Cayman Islands","iso":"KY","kind":"region"},{"name":"Chile","iso":"CL","kind":"region"},{"name":"Costa Rica","iso":"CR","kind":"region"},{"name":"Curaçao","iso":"CW","kind":"region"},{"name":"Dominica","iso":"DM","kind":"region"},{"name":"Dominican Republic","iso":"DO","kind":"region"},{"name":"Ecuador","iso":"EC","kind":"region"},{"name":"El Salvador","iso":"SV","kind":"region"},{"name":"Falkland Islands","iso":"FK","kind":"region"},{"name":"French Guiana","iso":"GF","kind":"region"},{"name":"Greenland","iso":"GL","kind":"region"},{"name":"Grenada","iso":"GD","kind":"region"},{"name":"Guadeloupe","iso":"GP","kind":"region"},{"name":"Guatemala","iso":"GT","kind":"region"},{"name":"Guyana","iso":"GY","kind":"region"},{"name":"Haiti","iso":"HT","kind":"region"},{"name":"Honduras","iso":"HN","kind":"region"},{"name":"Jamaica","iso":"JM","kind":"region"},{"name":"Martinique","iso":"MQ","kind":"region"},{"name":"Montserrat","iso":"MS","kind":"region"},{"name":"Nicaragua","iso":"NI","kind":"region"},{"name":"Panama","iso":"PA","kind":"region"},{"name":"Paraguay","iso":"PY","kind":"region"},{"name":"Peru","iso":"PE","kind":"region"},{"name":"Puerto Rico","iso":"PR","kind":"region"},{"name":"Saint Kitts and Nevis","iso":"KN","kind":"region"},{"name":"Saint Lucia","iso":"LC","kind":"region"},{"name":"Saint Vincent and the Grenadines","iso":null,"kind":"region"},{"name":"Saint-Pierre and Miquelon","iso":"PM","kind":"region"},{"name":"Sint Maarten","iso":"SX","kind":"region"},{"name":"Suriname","iso":"SR","kind":"region"},{"name":"Trinidad and Tobago","iso":"TT","kind":"region"},{"name":"Turks and Caicos Islands","iso":"TC","kind":"region"},{"name":"Uruguay","iso":"UY","kind":"region"},{"name":"United States Virgin Islands","iso":"VI","kind":"region"}],"hiring_excludes":[],"relocation_offered":false,"industries":["IT Service & Asset Management","Project & Work Management Software","Developer Tools","Intranet & Knowledge Management"],"lifecycle":[{"event":"open","at":"2026-10-04T11:58:41Z"}],"visa":[{"country":"GB","licensed_sponsor":true,"evidence":"Licensed UK visa sponsor (Skilled Worker)","filings_12m":null,"filings_prev_12m":null,"green_card_filings_12m":null,"median_offered_wage_usd":null,"route":"Skilled Worker","cap_exempt":false,"checked_at":"2026-10-06T06:21:00+00:00","sources":["UK Home Office: register of licensed sponsors (workers)"],"filings_for_role_12m":0}],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":1,"expected_fill_days":9,"reasons":["conf:0","velocity","win:early","comp:brand"],"computed_at":"2026-10-06T05:45:30Z"},"pay":null,"html_url":"https://alion.io/job/atlassian-senior-machine-learning-systems-engineer-2","json_url":"https://alion.io/job/atlassian-senior-machine-learning-systems-engineer-2.json","meta":{"generated_at":"2026-10-06T21:43:23Z","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","counted_by":"address","units_charged":1,"used_today":1482,"day_limit":5000,"remaining_today":3518,"minute_limit":60,"resets_at":"2026-10-07T00:00:00Z"}},"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":182},"rest":"https://alion.io/mcp/rest/get_company?id=182"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fatlassian-senior-machine-learning-systems-engineer-2"},{"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%2Fatlassian-senior-machine-learning-systems-engineer-2"},{"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%2Fatlassian-senior-machine-learning-systems-engineer-2"},{"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/atlassian-senior-machine-learning-systems-engineer-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fatlassian-senior-machine-learning-systems-engineer-2"}]}