{"id":3081023,"url":"https://alion.io/job/acv-auctions-software-engineer-iv-viper-engineering","title":"Software Engineer IV, Viper Engineering","company":{"id":179324,"name":"ACV Auctions","domain":"acvauctions.com","url":"https://alion.io/company/acv-auctions","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Dayforce","truth_index":{"grade":"B","score":75,"open_postings":18,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-24T06:02:35Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Buffalo, United States"],"countries":["US"],"hiring_countries":["US"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":133000,"max_usd":230000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":1105},"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AWS","optional":false},{"name":"Go","optional":false},{"name":"Node JS","optional":false},{"name":"PostgreSQL","optional":false},{"name":"SQL","optional":false},{"name":"Amazon ECS","optional":true},{"name":"Amazon EKS","optional":true},{"name":"Amazon S3","optional":true},{"name":"Apache Kafka","optional":true},{"name":"AWS Lambda","optional":true},{"name":"C#","optional":true},{"name":"CI/CD","optional":true},{"name":"Docker","optional":true},{"name":"ElasticSearch","optional":true},{"name":"JavaScript","optional":true},{"name":"Kubernetes","optional":true}],"status":"live","first_seen_at":"2026-10-17T18:30:00Z","employer_posted_date":"2026-10-22","last_verified_at":"2026-10-24T22:37:19Z","board_verified":true,"closed_at":null,"days_open":7,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":7},"description":"Who we are looking for:\nACV Auctions is looking for a Software Engineer to join our ACV Retail - Viper Teams and work on our SaaS Product. The position will focus on backend development & maintenance of Go Lang features & services hosted in AWS and utilizing Postgres and NOSQL.\nThe ideal candidate has a strong background and proven track record of architecting and designing enterprise applications in Go Lang and Node.JS, a penchant for high quality code, and a team minded approach to development.\nWhat you will do:\nDevelop Services using modern language stacks like Go Lang , Postgres and NoSQL databases like mongo, SQL Server is nice to have.\nDesign and build complex systems that can scale rapidly with little maintenance, with a strong focus on reliability, performance, and operational excellence.\nDesign, build, and maintain Kafka-based event processing services, including consuming, deserializing, validating, persisting, and reacting to events to drive downstream workflows.\nDesign and implement effective service/product interfaces, including third-party API integrations and extensible handler patterns for new integrations.\nDevelop and maintain application data models, including writing and tuning complex SQL queries, optimizing indexes and performance, and designing schemas that reliably support application workflows\nOwn larger, complex initiatives end-to-end—from discovery and requirements through delivery and production support—driving alignment across engineering and business stakeholders.\nCollaborate with software and production engineers to design scalable services, plan feature roll-out, and ensure high reliability and performance of our products.\nDesign and develop systems across all major departments including but not limited to; data, enterprise applications, and IT.\nLead technical design and architecture decisions across multiple systems/services, and help establish standards, patterns, and best practices.\nModify and develop custom software patterns as needed to solve highly complex software problems, and clearly document tradeoffs and long-term maintenance implications.\nBe accountable for the overall performance of products and/or services within a defined area of focus, including diagnosing production issues and driving improvements.\nConduct code reviews, develop high-quality documentation, and build robust test suites for your products (unit/integration testing), ensuring maintainable and well-covered code.\nProvide technical leadership through mentoring, coaching, and strong design/code review feedback, helping raise overall engineering quality.\nDevelop roadmaps and prioritize technical debt to effectively plan features and work, balancing delivery with long-term platform health.\nDrive operational maturity (observability, incident response, on-call practices, reliability goals) and lead post-incident analysis with preventative action plans.\nHandle multiple competing priorities in an agile, fast-paced environment while maintaining strong engineering discipline and delivery quality.\nPerform additional duties as assigned.\n\nWhat you will need:\nAbility to read, write, speak and understand English.\nBS degree in Computer Science or a related technical discipline or equivalent practical experience preferred\nMinimum 8 years of experience building SaaS web applications using Go Lang and Node.JS and/or C# nice to have (12+ years desirable).\nStrong experience maintaining and extending an existing codebase, adapting to pre-existing patterns and tracing the code’s path of execution across services.\nStrong experience integrating 3rd-party APIs, implementing authentication & authorization and developing asynchronous data flows.\nStrong experience publishing and consuming Kafka events, including designing event contracts, building reliable event-driven workflows, and handling ordering, retries, idempotency, and failure recovery.\nStrong experience developing unit and integration-tests, and setting expectations for test strategy and coverage.\nStrong experience integrating with cloud service (AWS), specifically: SQS, SNS, S3, ECS, EKS, Lambda, ElasticSearch, Docker / Containers.\nStrong experience working with Docker and Kubernetes, including containerization, orchestration (k8s) and serverless deployment scenarios.\nStrong experience with build & deployment automation (CI/CD) and release workflows.\nStrong SQL programming and data-layer development experience (schema design, query performance, indexing, and data reliability patterns).\nMinimum 8 years of experience working with continuous integration and build tools.\nExpert in version control systems and branching/release strategies.\nExpert in software engineering tooling and mentors and drives adoption for new tools and tooling standards.\nExpert in release, builds, testing and the entirety of the SDLC.\nExpert at debugging distributed systems using distributed tracing and other common tools; able to lead root-cause analysis and preventative improvements.\nTop notch communication skills, including clearly communicating tradeoffs and aligning stakeholders.\nExperience architecting and designing systems from the ground up, including making pragmatic decisions for scalability, reliability, and maintainability.\nExperience working with a geographically dispersed team across multiple timezones, including leading technical alignment and delivery across teams.","description_format":"text","description_chars":5389,"description_truncated":false,"requirements":{"experience_years_min":8,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":true},"security_clearance":false,"languages":[{"language":"English","level":"All levels","optional":false}]},"benefits":[],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Auctions","Marketplaces"],"lifecycle":[{"event":"open","at":"2026-10-22T12:09:46Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 4","filings_12m":4,"filings_prev_12m":6,"green_card_filings_12m":0,"median_offered_wage_usd":82500,"route":null,"cap_exempt":false,"checked_at":"2026-10-15T11:24:14+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)","US Department of Labor: PERM disclosure data (green cards)"],"filings_for_role_12m":0}],"liveness":{"score":63,"band":"ok","label":"Likely open","p_open":1,"p_active":0.632,"p_room":1,"age_days":6,"expected_fill_days":38,"reasons":["conf:3","stale_co","velocity","win:early"],"computed_at":"2026-10-24T06:02:35Z"},"pay":null,"html_url":"https://alion.io/job/acv-auctions-software-engineer-iv-viper-engineering","json_url":"https://alion.io/job/acv-auctions-software-engineer-iv-viper-engineering.json","meta":{"generated_at":"2026-10-24T23:08:06Z","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":33985,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-25T00:00:00Z"}},"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":179324},"rest":"https://alion.io/mcp/rest/get_company?id=179324"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Facv-auctions-software-engineer-iv-viper-engineering"},{"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%2Facv-auctions-software-engineer-iv-viper-engineering"},{"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%2Facv-auctions-software-engineer-iv-viper-engineering"},{"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/acv-auctions-software-engineer-iv-viper-engineering\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Facv-auctions-software-engineer-iv-viper-engineering"}]}