Data / Persistence Modernization Engineer

Job Title: Data / Persistence Modernization EngineerPrimary Location: Primarily Remote, Ideally Candidates Residing in Chicagoland AreaPosition Type: Contract, 6 months with possible extensionOverviewTalentFish is casting a line for a Data / Persistence Modernization Engineer to join our client's cloud modernization initiative. This senior-level consultant will assess stateful application services, data platforms, caching technologies, search solutions, analytics stores, and data-migration patterns associated with both recurring modernization efforts and newly acquired environments.The engineer will determine whether material data dependencies can be migrated directly, bridged temporarily, retained through a controlled exception, replaced with a target-platform service, or require application data-layer refactoring. This role combines architecture assessment, hands-on technical validation, migration planning, risk analysis, and engineering-effort estimation.What You Bring to the Role. (Ideal Experience)Senior-level experience modernizing application data layers and distributed persistence architectures.Deep experience with NoSQL and document-oriented platforms, including:Amazon DynamoDBAmazon DocumentDBMongoDB and MongoDB AtlasWorking knowledge of:PostgreSQL and PostgreSQL-based managed servicesAmazon RDSGoogle AlloyDBRedis and Amazon ElastiCacheOpenSearchSnowflakeAmazon RedshiftStrong understanding of data-access patterns, schema design, indexing, and partitioning strategies.Experience evaluating consistency models, transaction semantics, and data-model coupling.Knowledge of cache-versus-state classification and the operational implications of each.Hands-on experience with:Change Data CaptureData backfillsDual-write patternsShadow readsData reconciliationTenant isolationData cutover and rollback strategiesAbility to assess application changes required when a managed cloud service cannot be directly reproduced on the target platform.Strong written communication skills with the ability to produce concise, actionable engineering assessments.Experience estimating technical complexity, platform dependencies, migration risks, and future engineering effort.What You'll Do. (Skills Used in this Position)Assess recurring and acquisition-specific risks related to stateful application services and data platforms.Analyze data models, schemas, indexes, partitions, access patterns, consistency requirements, and transaction behavior.Evaluate dependencies involving databases, caches, search platforms, analytics stores, and managed cloud data services.Determine whether each dependency is:Portable to the target environmentSuitable for temporary bridgingEligible for a controlled exceptionA candidate for replacementLikely to require application refactoringEvaluate dual-running, reconciliation, backfill, and rollback options.Identify required target-platform services, configurations, and technical prerequisites.Perform bounded, non-production technical validation when additional evidence is needed.Assess tenant isolation, data security, migration sequencing, and service availability risks.Estimate the application, platform, data, testing, and operational effort associated with each migration path.Produce concise Engineering Assessment Inputs documenting:Data-model couplingAccess-pattern findingsMigration optionsPlatform dependenciesCutover and rollback feasibilityKey risks and constraintsLikely future engineering effortPartner with application teams, cloud platform teams, architects, security stakeholders, and data owners throughout the assessment process.Compensation InformationThe expected salary range for this position is $55 - $65 per hour, depending on experience and qualifications. This role also qualifies for comprehensive benefits such as health insurance and paid time off. TalentFish is committed to pay transparency and equal opportunity. The salary range provided is in compliance with applicable state and federal regulations.This role requires authorization to work in the U.S. without current or future visa sponsorship.All offers are contingent upon the completion of a background check, which may include but is not limited to reference checks, education verification, employment verification, drug testing, criminal records checks, and any required certifications or compliance requirements based on the end client's background check policies and applicable laws.TalentFish is an employee-owned company pioneering a new realm in talent acquisition. We are redefining IT staffing by evolving AI, video screening, and our unique platform. TalentFish focuses on providing the best employee, consultant, and client experience possible.At TalentFish we are an Equal Opportunity Employer; we embrace and encourage diversity!EMAIL ME: lgironda@talentfish.com