{"id":3760239,"url":"https://alion.io/job/acxiom-senior-software-engineer-identity-resolution","title":"Senior Software Engineer – Identity Resolution","company":{"id":713346,"name":"Acxiom","domain":"acxiom.com","url":"https://alion.io/company/acxiom","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["United States"],"countries":["US"],"hiring_countries":["US"],"hiring_countries_total":1,"salary":null,"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AWS","optional":false},{"name":"CI/CD","optional":false},{"name":"Databricks","optional":false},{"name":"Git","optional":false},{"name":"Java","optional":false},{"name":"Master Data Management","optional":false},{"name":"Python","optional":false},{"name":"Rest API","optional":false},{"name":"Scala","optional":false},{"name":"Spark","optional":false},{"name":"SQL","optional":false},{"name":"Amazon CloudWatch","optional":true},{"name":"CloudFormation","optional":true},{"name":"Docker","optional":true},{"name":"Grafana","optional":true},{"name":"Kubernetes","optional":true},{"name":"pySpark","optional":true},{"name":"Terraform","optional":true}],"status":"live","first_seen_at":"2026-11-04T18:19:24Z","employer_posted_date":"2026-11-04","last_verified_at":"2026-11-05T00:01:03Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"We are seeking an experienced Senior Software Engineer to join our Identity Resolution engineering team.This role will focus on designing, developing, testing, and supporting high-scale Identity Resolution and Entity Resolution systems that match, link, and resolve identities across large and diverse datasets. The engineer will work on both large-scale distributed data-processing workloads and high-performance application services, including low-latency APIs used for real-time identity resolution.\nThe ideal candidate will have strong software engineering experience across Java, Python, Scala, Apache Spark, and SQL, along with hands-on experience with AWS and Databricks.\nThis position will work closely with architects, engineers, data teams, and product stakeholders to implement scalable, reliable, secure, and high-performance solutions.\nKey Responsibilities\nDesign, develop, test, and maintain software supporting large-scale Identity Resolution and Entity Resolution platforms. \nDevelop systems that match, link, consolidate, and resolve identities across multiple datasets and data sources. \nImplement both real-time and batch identity-resolution workflows. \nDevelop high-performance backend services and APIs using Java, Python, and Scala. \nBuild and optimize low-latency APIs supporting real-time identity lookup and resolution. \nDevelop large-scale distributed data-processing applications using Apache Spark. \nBuild and maintain Spark workloads using Scala and Python. \nDevelop complex SQL queries and data-processing logic to support identity matching, analysis, and data transformation. \nWork with Databricks to develop, optimize, and operate large-scale data-processing workloads. \nDevelop cloud-native applications and data-processing solutions using AWS. \nWork closely with architects to translate solution designs and technical requirements into production-quality software. \nContribute to technical design discussions and recommend implementation approaches based on performance, scalability, reliability, and maintainability. \nImplement deterministic and probabilistic matching logic, fuzzy matching, data normalization, identity linking, and related Identity Resolution capabilities. \nOptimize application code, Spark workloads, SQL queries, and data pipelines for performance and scalability. \nTroubleshoot complex application, distributed-processing, data-quality, and production performance issues. \nDevelop automated tests and validation processes to ensure the accuracy and reliability of identity-matching logic. \nBuild monitoring, logging, metrics, and observability into production applications and data-processing workloads. \nParticipate in code reviews and help establish strong software engineering practices across the team. \nMentor junior and mid-level engineers and provide technical guidance on complex development tasks. \nCollaborate with architects, engineering teams, data engineers, product teams, security teams, and other stakeholders. \nStay current with evolving technologies and engineering practices related to Identity Resolution, distributed systems, cloud computing, and large-scale data processing. \nIdentity Resolution Experience\nThe Senior Software Engineer should have experience with, or strong familiarity with, Identity Resolution, Entity Resolution, Customer 360, Master Data Management, identity graph, record linkage, or similar matching systems.\nRelevant concepts include:\nDeterministic matching \nProbabilistic matching \nExact and fuzzy matching \nEntity and record linkage \nIdentity stitching and consolidation \nMatch confidence and scoring \nAttribute normalization and standardization \nDuplicate detection and resolution \nSource prioritization \nIdentity graphs \nReal-time identity lookup \nBatch identity processing \nIncremental identity processing \nData quality and match accuracy \nLarge-scale identity datasets \nRequired Qualifications\n5+ years of professional software development experience, including experience developing and supporting production software systems. \nStrong proficiency in Java and enterprise application development. \nStrong proficiency in Python for application development, data processing, automation, or distributed workloads. \nStrong proficiency in Scala, particularly for large-scale data-processing applications. \nStrong hands-on experience with Apache Spark and distributed data processing. \nAdvanced proficiency in SQL, including complex queries, data transformations, and query optimization. \nExperience developing production workloads using Databricks. \nExperience developing cloud-based applications and services using AWS. \nExperience with Identity Resolution, Entity Resolution, record linkage, data matching, or similar large-scale data-processing systems. \nExperience developing REST APIs, backend services, microservices, or distributed applications. \nExperience building and optimizing high-throughput, low-latency services and APIs. \nStrong understanding of distributed systems concepts, including concurrency, partitioning, caching, resiliency, scalability, and fault tolerance. \nExperience optimizing Spark workloads, including partitioning, joins, caching, memory utilization, and execution performance. \nStrong understanding of software engineering principles, object-oriented design, data structures, algorithms, and design patterns. \nExperience with automated testing, CI/CD, source control, and modern software delivery practices. \nExperience with Git and collaborative software development workflows. \nStrong analytical, troubleshooting, and problem-solving skills. \nExcellent written and verbal communication skills. \nAbility to independently own complex development tasks while collaborating effectively with architects and other engineering team members. \nPreferred Qualifications\nExperience developing Identity Resolution platforms/graphs. \nExperience implementing deterministic and probabilistic identity-matching algorithms. \nExperience with fuzzy matching, similarity algorithms, record linkage, or entity-resolution techniques. \nExperience developing Spark applications using both Scala and PySpark. \nExperience with Databricks performance optimization, cluster configuration, and production workload management. \nExperience with event-driven or streaming architectures. \nExperience with graph databases or graph-oriented data models. \nExperience with Docker, Kubernetes, or containerized application environments. \nExperience with infrastructure-as-code technologies such as Terraform or CloudFormation. \nExperience building monitoring and observability using tools such as CloudWatch, Grafana, or similar technologies. \nExperience working with large-scale consumer, marketing, advertising, financial, or customer identity datasets. \nCore Technical Skills\nLanguages & Data Processing\nJava \nPython \nScala \nApache Spark \nSQL \nPlatforms\nAWS \nDatabricks \nEngineering Areas\nIdentity Resolution / Entity Resolution \nDistributed Systems \nLow-Latency APIs \nLarge-Scale Data Processing \nReal-Time and Batch Processing \nCloud-Native Application Development \nEducation\nBachelor’s degree in Computer Science, Software Engineering, Computer Engineering, or a related technical field, or equivalent professional experience.\nPrimary Location City/State:\nHomebased - Conway, ArkansasAdditional Locations (if applicable):\nAcxiom is an equal opportunity employer, including disability and protected veteran status (EOE/Vet/Disabled) and does not discriminate in recruiting, hiring, training, promotion or other employment of associates or the awarding of subcontracts because of a person's race, color, sex, age, religion, national origin, protected veteran, military status, physical or mental disability, sexual orientation, gender identity or expression, genetics or other protected status.\nAttention California Applicants: Please see our CCPA/CPRA Privacy Act notice here.\nAttention Colorado, California, Connecticut, Massachusetts, Maryland, Nevada, New Jersey, New York City, Ohio, Rhode Island, Virginia, and Washington Applicants: This position is not located in the aforementioned locations but applications for remote work may be considered. For information about this role under state or local equal pay or pay transparency laws, please contact .","description_format":"text","description_chars":8286,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Artificial Intelligence","Commerce","Data & Analytics","Marketing Automation"],"lifecycle":[{"event":"open","at":"2026-11-04T18:19:24Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 22 · green card filings: 2","filings_12m":22,"filings_prev_12m":15,"green_card_filings_12m":2,"median_offered_wage_usd":130833,"route":null,"cap_exempt":false,"checked_at":"2026-10-29T16:27:21+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":14}],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":0,"expected_fill_days":34,"reasons":["conf:5","velocity","win:early"],"computed_at":"2026-11-05T05:54:30Z"},"pay":null,"html_url":"https://alion.io/job/acxiom-senior-software-engineer-identity-resolution","json_url":"https://alion.io/job/acxiom-senior-software-engineer-identity-resolution.json","meta":{"generated_at":"2026-11-05T07:18:30Z","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":9263,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-06T00:00:00Z"}},"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":713346},"rest":"https://alion.io/mcp/rest/get_company?id=713346"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Facxiom-senior-software-engineer-identity-resolution"},{"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%2Facxiom-senior-software-engineer-identity-resolution"},{"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%2Facxiom-senior-software-engineer-identity-resolution"},{"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/acxiom-senior-software-engineer-identity-resolution\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Facxiom-senior-software-engineer-identity-resolution"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3760239}},{"tool":"search_jobs","arguments":{"company":"acxiom.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3760239},"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. Docs: https://alion.io/developers"}}