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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Data Migration Lead, Senior Consultant - **Company:** Deloitte T.T.L. - **Location:** Arlington, VA, United States - **Experience:** Expert - **Salary:** $131,000.0 - $218,300.0 - **Contract:** Permanent contract - **Skills:** Data Validation, Data Integration, Extract Transform Load (ETL), Data Mapping, Data Migration, Data Profiling, Relational Databases, Database Queries, Global Positioning Systems (GPS), PostgreSQL, Microsoft SQL Server, Scrum Methodology, Migration Manager, SQL Stored Procedures, PL-SQL, Marklogic, Appian, Low-code - **Published:** September 2, 2026 - **Apply:** https://www.techcareers.com/job.asp?id=3372014733&tx=JL5953FFL&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54 ## About the Role * Ability to work independently and collaborate as part of a team * Effective written and verbal communication skills * Meticulous attention to detail and quality of work product * Ability to build and sustain professional relationships * Ability to lead projects or workstreams * Ability to manage and prioritize multiple tasks in a fast-paced and dynamic environment * Strong interpersonal skills and professional demeanor * Ability to meet deadlines * Ability to provide clear guidance to others, * Bachelor's degree * Active Public Trust security clearance * Must be MarkLogic Certified or able to obtain MarkLogic Certification. * 5+ years of experience data migration leadership * 3+ years of experience developing detailed source-to-target mappings for data integration and migration initiatives. * 3+ years of experience with strong hands-on experience with PL/SQL development, including complex queries, stored procedures, functions, and packages. * 3+ years of experience performing data validation, reconciliation, and defect resolution to ensure data accuracy and completeness. * 1+ years of experience delivering solutions in Agile/Scrum environments, including sprint planning, stand-ups, reviews, and retrospectives. * Ability to travel 0-25%, on average, based on the work you do and the clients and industries/sectors you serve * Must be legally authorized to work in the United States without the need for employer sponsorship, now or at any time in the future Preferred * Proficiency designing, developing, testing, and executing ETL processes. * Experience with Appian or low-code platform migrations * Experience with SQL Server, PostgreSQL, or similar relational databases * Familiarity with data profiling, cleansing, and cutover planning * Strong documentation and stakeholder communication skills * Familiarity with Product Lifecycle Management software ## Description As a Data Engineer III on the GPS Engineering as a Service team, you will be responsible for delivering Appian-based business process solutions that support mission objectives. * Lead migration of data from legacy system into the relational database supporting a new Appian application. * Own source-to-target mapping, migration strategy, ETL coordination, reconciliation, validation, and cutover support across the full migration lifecycle. * Partner with architects, Appian developers, analysts, and business SMEs to ensure data quality, completeness, and alignment to the evolving target-state data model. * Participate in Agile delivery activities, including sprint planning, daily stand-ups, backlog refinement, and release support. * Apply Appian development standards, reusable components, and performance practices to support maintainability and technical quality. ## Related Videos - [Reimagining app development with Low-code and AI](https://www.wearedevelopers.com/videos/1651-reimagining-app-development-with-low-code-and-ai) - [The Migration Cookbook](https://www.wearedevelopers.com/videos/100164-the-migration-cookbook) - [What If Apps Built Themselves? AI-Powered Low-Code for the Industrial Enterprise](https://www.wearedevelopers.com/videos/2079-what-if-apps-built-themselves-ai-powered-low-code-for-the-industrial-enterprise) - [A Developer's Framework for Any Tool Migration](https://www.wearedevelopers.com/videos/2035-a-developer-s-framework-for-any-tool-migration) - [Modern Data Architectures need Software Engineering](https://www.wearedevelopers.com/videos/1030-modern-data-architectures-need-software-engineering) - [Dynamic Entities in .NET: Building Low-Code Systems on Top of Entity Framework Core](https://www.wearedevelopers.com/videos/100218-dynamic-entities-in-net-building-low-code-systems-on-top-of-entity-framework-core) ## Related Articles - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Best Companies to work for in London: Top 25 Companies in 2023](https://www.wearedevelopers.com/magazine/187-best-companies-to-work-for-in-london-top-25-companies-in-2023) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers)