{"id":2189809,"url":"https://alion.io/job/rapinnotech-sr-java-backend-developer-software-engineer","title":"Sr Java Backend Developer (SOFTWARE ENGINEER)","company":{"id":3800994,"name":"RapinnoTech","domain":"rapinnotech.com","url":"https://alion.io/company/rapinnotech","size_band":null,"is_staffing_agency":true,"employer_type":"agency","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"inferred_company_offices","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":[],"countries":[],"hiring_countries":["US"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":89000,"max_usd":220000,"period":"year","method":"global_role_seniority_cell","sample_n":6426},"experience_years_min":7,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Go","optional":false},{"name":"Java","optional":false},{"name":"AWS","optional":true},{"name":"Azure","optional":true},{"name":"DNS","optional":true},{"name":"eBPF","optional":true},{"name":"Envoy","optional":true},{"name":"GCP","optional":true},{"name":"GitOps","optional":true},{"name":"Linux","optional":true},{"name":"TCP/IP","optional":true}],"status":"live","first_seen_at":"2026-10-09T15:45:52Z","employer_posted_date":null,"last_verified_at":"2026-10-09T15:45:52Z","board_verified":false,"closed_at":null,"days_open":3,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":3},"description":"VERY URGENT AND IMMEDIATE NEED.Note: Need Only US Citizen, Green Card, EAD-GC, J2 EAD, H4 EAD, L2 EAD, and TN Visa.\nJob Title: Sr. Java Backend Developer (Software Engineer)\nLocation: Remote\nDuration: 06+ Months ContractMust Have:Looking for Server side development exp.prefers GO exp. but will look at Java or C++\nNeeds someone who has built a system; server side development; much more than API development.\nAny networking exp. is a plusWants Hackerrank test administered.Job Description:The Traffic team is a crucial, high-visibility team. The traffic team manages a multi-layered global traffic routing platform that intelligently routes all ecommerce web traffic and connects cloud powered stores to the cloud. The capability offers helps Walmart delivery customer value by providing fastest & highly available user experience.\nWe work in a hybrid cloud environment where we manage and build custom load balancers using eBPF, L7 proxies (Torbit) and service mesh. We interact with external companies like CDNs and public cloud providers, and we also interact with many other teams inside Walmart that use our services. As an experienced Engineer, you will have a great deal of autonomy to drive the future of crucial traffic infrastructure for one of the largest eCommerce companies in the world! This is a huge opportunity for career growth!\n You’ll sweep us off our feet if…By being energetic, self-motivated, focused on solving customer problems in a fast-paced, dynamic, start-up-like environment.\nBy demonstrating curiosity, deep interest, passion for building and scaling infrastructure technology at scale.\nBy having experience troubleshooting LIVE sites issues and understanding root cause analysis. Enhancing design to prevent re-occurrences of defects.\nBy understanding of how traffic is routed to services in private & public cloud.\nBy having good engineering discipline of writing and developing system level code; conducting unit testing; communicating status and issues to team members and stakeholders; collaborating with project team and cross-functional teams.\nBy having experience with some of the following technologies: Itsio, L7 proxies (Envoy, apigee, api proxy or other proxies), eBPF, service mesh, configuration management and GitOps.\nYou’ll make an impact by…Leading and monitoring the definition, design, delivery of Traffic team offering to business partners to maximize usefulness and impact for the organization.\nTeaching and creating a culture of automation, testing, and engineering best-practices\nCreating a better customer experience by improving automation, performance, quality, and system observability\nWorking cross-functionally across the engineering and platform organizations as well as with internal and external stakeholders. Collaborating with others on security, reliability, and automation.\nQualifications:Bachelor's or master's degree in Computer Science or equivalent\n7+ years of professional backend experience; you will mostly be working on servers.\nProficiency with Go, C++, Java or another server-side programming language.\nStrong written and verbal communication skills. Communicating with engineers is a part of the job.\nWilling to dive into unfamiliar things. Sometimes bugs or features require us to dig into TCP/IP, the DNS spec, Walmart's logging infrastructure, Linux system administration, and more.\nExperience with running infrastructure solutions across private and public cloud environments (Azure, GCP, AWS)\nComfortable working on a fully remote team.\nOriginally posted on Himalayas","description_format":"text","description_chars":3551,"description_truncated":false,"requirements":{"experience_years_min":7,"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"}],"hiring_excludes":[],"relocation_offered":false,"industries":["IT Consulting & Digital Transformation","Custom Software Development"],"lifecycle":[{"event":"open","at":"2026-10-09T17:28:15Z"}],"visa":[],"liveness":{"score":52,"band":"ok","label":"Likely open","p_open":1,"p_active":0.516,"p_room":1,"age_days":2,"expected_fill_days":29,"reasons":["seen:2","agency","win:early"],"computed_at":"2026-10-12T06:55:09Z"},"pay":null,"html_url":"https://alion.io/job/rapinnotech-sr-java-backend-developer-software-engineer","json_url":"https://alion.io/job/rapinnotech-sr-java-backend-developer-software-engineer.json","meta":{"generated_at":"2026-10-12T16:10:33Z","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":25862,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-13T00:00:00Z"}},"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":3800994},"rest":"https://alion.io/mcp/rest/get_company?id=3800994"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Frapinnotech-sr-java-backend-developer-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%2Frapinnotech-sr-java-backend-developer-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%2Frapinnotech-sr-java-backend-developer-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/rapinnotech-sr-java-backend-developer-software-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Frapinnotech-sr-java-backend-developer-software-engineer"}]}