{"id":3151264,"url":"https://alion.io/job/acaisoft-senior-backend-engineer-javago","title":"Senior Backend Engineer (Java/Go)","company":{"id":3913604,"name":"Acaisoft","domain":"acaisoft.com","url":"https://alion.io/company/acaisoft-2","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"contractor","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Warsaw, Poland"],"countries":["PL"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":160,"max":230,"currency":"PLN","period":"hour","gross":null,"usd_annual":118000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Amazon EC2","optional":false},{"name":"Amazon EKS","optional":false},{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"CI/CD","optional":false},{"name":"Docker","optional":false},{"name":"Go","optional":false},{"name":"Java","optional":false},{"name":"Kubernetes","optional":false},{"name":"Terraform","optional":false}],"status":"live","first_seen_at":"2026-10-23T11:24:30Z","employer_posted_date":null,"last_verified_at":"2026-10-23T11:24:30Z","board_verified":false,"closed_at":null,"days_open":6,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":6},"description":"Hi there! If you’re seeking a high-impact role within an ambitious and fast-growing software house, you might have just found your perfect match!\n\nOur client is a global leader in Intelligent Observability platforms that unify telemetry data with business outcomes to optimize tech spend and protect revenue in real time. \nWe are looking for a Senior Backend Engineer to join a high-impact initiative focused on migrating core backend services (Java, Go) from Intel architecture to ARM-based processors (AWS Graviton / Azure Cobalt). Roughly 50–60% of the services are already migrated, and you will own the end-to-end transition and performance optimization of the remaining infrastructure.\n\nZakres obowiązków\nRefactor, optimize, and migrate core Java and Go services to run efficiently on ARM CPU architectures (AWS Graviton / Azure Cobalt). \nAnalyze performance bottlenecks and hardware-level instruction behavior during x86 to ARM migration. \nWork with Kubernetes (EKS) to deploy, monitor, and scale migrated workloads in enterprise environments. \nEnsure seamless CI/CD delivery pipelines and infrastructure automation using Terraform and AWS services. \nCollaborate closely with cloud architecture and platform security teams across global time zones.\nWymagania\n5+ years of hands-on experience building scalable services in Java and/or Go.\n Practical experience with AWS (EKS, EC2) and Kubernetes. \n Good understanding of CPU architectures (x86 vs. ARM) and performance tuning for cloud-native applications. \nWorking knowledge of Terraform, Docker, and CI/CD automation.\nOpenness to occasional pre-scheduled evening calls (between 17:00–21:00 CET) to sync with US-based stakeholders.\nTech stack\nGolang\nJava","description_format":"text","description_chars":1710,"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":["IT Consulting & Digital Transformation","Custom Software Development"],"lifecycle":[{"event":"open","at":"2026-10-23T12:23:15Z"}],"visa":[],"liveness":{"score":99,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.993,"p_room":1,"age_days":5,"expected_fill_days":28,"reasons":["seen:5","urgency","velocity","win:early"],"computed_at":"2026-10-29T05:49:05Z"},"pay":{"stated_usd_annual":118000,"is_top_pay":false},"html_url":"https://alion.io/job/acaisoft-senior-backend-engineer-javago","json_url":"https://alion.io/job/acaisoft-senior-backend-engineer-javago.json","meta":{"generated_at":"2026-10-29T22:27:04Z","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":33210,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-30T00:00:00Z"}},"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":3913604},"rest":"https://alion.io/mcp/rest/get_company?id=3913604"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Facaisoft-senior-backend-engineer-javago"},{"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%2Facaisoft-senior-backend-engineer-javago"},{"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%2Facaisoft-senior-backend-engineer-javago"},{"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/acaisoft-senior-backend-engineer-javago\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Facaisoft-senior-backend-engineer-javago"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3151264}},{"tool":"search_jobs","arguments":{"company":"acaisoft.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3151264},"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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