Data Migration Engineer

Data Migration Engineer

When a new customer joins the platform, their data has to come with them — out of legacy systems and into the client's product, accurately, completely, and on schedule. This role owns the technical execution of that work.

As a Data Migration Engineer on the client's migration delivery team, the role will own customer migrations end-to-end from the technical side: exploring legacy source systems, exporting data, transforming it into the platform's standard format, and driving it to a validated, production-ready state. The engineer works from business context and mapping rules defined by a customer-facing migration counterpart, and works daily in the company's internal migration tooling — improving it directly where possible and specifying larger needs for the platform engineering team to build.

This is a hands-on role for someone who enjoys turning messy, real-world data into something clean, repeatable, and trusted — and who is equally comfortable leading technical conversations directly with customers. The team is expanding significantly, so this hire will help shape how migrations are run going forward.

Key Responsibilities

• Explore legacy source systems — databases, flat files, reports, APIs — to understand their structure, quality, and relationships in the context of the target data model.
• Export source data across a range of access methods, including SQL, APIs, manual extracts, and database backups.
• Transform exported data into the platform's standard format by authoring declarative, version-controlled mapping files that encode agreed business rules.
• Execute migrations end-to-end on the internal migration platform: load, validate against target schemas, reconcile, and import to production.
• Build and reuse mappings, templates, and validation rules so each migration is faster and more repeatable than the last.
• Contribute engineering improvements to the migration tooling — validation rules, transforms, mapping updates — and raise larger needs to the platform engineering team.
• Diagnose and resolve data discrepancies during dry runs, UAT, and post-cutover.
• Document mapping specs, transformation logic, and data anomalies so migrations are auditable and repeatable.

What Success Looks Like

• Source data lands in the platform accurately, completely, and on schedule — with discrepancies caught before go-live.
• Transformation and validation work is reusable, so later migrations build on prior templates and rules.
• Data issues are diagnosed and resolved quickly, keeping migrations on track.
• Tooling gaps are either fixed directly or clearly specified for the platform engineering team.
• Delivered data is trusted — accurate and well-documented enough to present to customers with confidence.

What the Right Person Brings

• 3–5+ years in data engineering, data migration, ETL, or a similar hands-on data role.
• Strong SQL and ETL fundamentals — treating extract → transform → load as a deliberate methodology: staging, repeatable and idempotent loads, full vs. incremental loads, and validation and reconciliation at every stage.
• Hands-on data-manipulation fluency across SQL, Python, JSON, or similar — querying, profiling, reshaping data, and debugging unfamiliar source schemas.
• Experience extracting data from varied sources: relational databases, APIs, flat files, and backups.
• AWS experience — particularly Athena — and depth in SQL-based systems.
• A background in high-volume, structured, or legacy data environments — for example banking, legal software, payroll, large CRMs, or enterprise SaaS with financial modules.
• A proven ability to transform messy, poorly documented data into clean, structured output, with a solid grasp of data quality, validation, reconciliation, and cleansing.
• Client-facing communication skills — comfortable leading technical conversations directly with customers.
• Comfort in fast-paced, ambiguous environments with shifting source systems, and a bias toward reusability and automation over one-off scripts.
• A Bachelor's degree in Computer Science, Information Systems, Data or Software Engineering, or a related field — or equivalent work experience.

Nice to Have

• Familiarity with TypeScript/JavaScript (Node).
• Familiarity with OSS/BSS, telecom, or billing/CRM data models (subscribers, services, billing accounts) — or a demonstrated ability to ramp quickly on unfamiliar domain models.
• Comfort using AI-assisted tooling to accelerate data exploration, mapping, and validation.
• Experience building or extending an internal data platform or migration tooling.
• Exposure to cutover and go-live operations: delta loads, reconciliation, rollback.
• Experience collaborating with a separate platform or product engineering team.

Compensation & Benefits

• Our client offers competitive compensation aligned with experience and geography, under a transparent internal salary framework, along with:
• A flexible 25-day vacation policy and flexible working hours.
• Stock options.
• Group insurance and telemedicine.
• A life spending account and retirement savings plan.
• 100% remote work, company-wide.

Equal Opportunity

Our client is an equal-opportunity employer. Accommodations are available on request throughout the hiring process. To learn more about this opportunity, please contact Accelerate HC.