Synthetic Data Engineers for Safer AI and QA

Hire Synthetic Data Engineers
Who Generate Useful Data Without Exposing Sensitive Data

Hire engineers who turn sensitive, scarce, or incomplete data into validated synthetic datasets for AI training, model evaluation, QA automation, analytics, simulation, and regulated workflows without treating privacy or utility as an afterthought.

Rate Preview

Senior Synthetic Data Engineer

SDV Python Privacy Evals
All Levels

$5,500/mo

Junior from $2,800/mo · Mid from $4,000/mo · Senior from $5,500/mo

7-Day Risk-Free Trial

Zero commitment start

Onboard in 48 Hours

Pre-vetted for data judgment

AI-Native Development

Generation, validation, and evals

Trusted by CTOs, Engineering Leaders & Operators Worldwide

Trusted by CTOs, Engineering Leaders & Operators Worldwide

Trusted by CTOs, Engineering Leaders & Operators Worldwide

Trusted by CTOs, Engineering Leaders & Operators Worldwide

Trusted by CTOs, Engineering Leaders & Operators Worldwide

10+ Years in Business

500+ Projects Delivered

200+ Global Clients

4.9/5 Client Satisfaction

Why Companies Struggle to Hire Synthetic Data Engineers

Synthetic data hiring fails when teams confuse realistic-looking records with useful data. The right engineer understands the source data, the downstream task, the privacy boundary, and the validation evidence needed before synthetic data can be trusted.

The Hiring Problem

Teams keep copying production data into development, QA, analytics, or vendor workflows because the synthetic replacement is not trusted

Model training and evaluation lack rare examples, failure cases, long-tail behavior, privacy-sensitive examples, and negative controls

Generated records look plausible but break schemas, relationships, temporal order, correlations, or business rules that real systems depend on

Privacy claims rely on masking language instead of re-identification risk review, memorization checks, uniqueness analysis, and approval boundaries

Our Solution

Engineers design synthetic tabular, text, image, event, time-series, document, and simulation data around a specific downstream job

Privacy checks cover direct identifiers, quasi-identifiers, memorization, nearest-neighbor risk, re-identification risk, uniqueness, and access rules

Utility is measured through schema validity, distribution similarity, column-pair trends, task-level evals, model impact, and domain review

Datasets are versioned, documented, reproducible, and wired into CI, QA, training, analytics, vendor sharing, or model regression workflows

Why Hire Synthetic Data Engineers from Devlyn

Senior, product-minded Synthetic Data Engineers vetted for data modeling, privacy judgment, simulation design, statistical validation, ML evaluation, documentation, and ability to turn generated data into production workflows your team can actually use.

Why Hire Synthetic Data Engineers from Devlyn
Synthetic Dataset Design

Synthetic Dataset Design

Defines schemas, constraints, entity relationships, temporal logic, distributions, labels, edge cases, and acceptance criteria before generation starts.

Privacy Protection

Privacy Protection

Assesses direct identifiers, quasi-identifiers, memorization, nearest-neighbor similarity, differential privacy options, access boundaries, and re-identification risk.

Scenario Simulation

Scenario Simulation

Creates rare events, fraud patterns, claims scenarios, sensor states, device failures, workflow exceptions, adversarial examples, and negative controls.

LLM Eval Data

LLM Eval Data

Builds prompt sets, documents, expected answers, grading rubrics, red-team cases, tool-call examples, and regression corpora for AI systems.

Data Validation

Data Validation

Compares synthetic and real data through schema checks, quality reports, distribution similarity, column-pair trends, bias indicators, and downstream task performance.

Pipeline Integration

Pipeline Integration

Connects generation, validation, dataset versioning, review, and release into CI, QA, analytics, training, simulation, and model-evaluation workflows.

How we turn synthetic data into usable proof

The hiring process is built around data risk and downstream value. We identify the target use case, shortlist engineers who have solved that kind of synthetic data problem, and use the first week to prove utility, privacy discipline, and validation clarity.

A 30-minute call maps the target use case, data types, source systems, privacy constraints, downstream model or QA workflow, schema complexity, regulatory expectations, toolchain, security boundaries, and the proof you need before synthetic data can replace or augment real data. If the scope is better handled by a data engineer, ML engineer, privacy engineer, or a pod, we say that before you interview anyone.
Data Purpose and Risk Scoping
Within 24 hours, you receive pre-vetted Synthetic Data Engineer profiles matched against your modality and risk: tabular customer or transaction data, document and form examples, LLM evaluation corpora, event streams, time-series data, computer vision scenes, robotics simulation, sensor data, or privacy-safe QA datasets. Each profile includes technical context, availability, communication fit, and why the engineer belongs in your interview loop.
Shortlist Matched to Data Modality
Use the interview to test how the engineer would profile source data, design generation constraints, choose SDV-style quality checks, evaluate privacy risk, create long-tail cases, build synthetic documents or prompts, validate synthetic images or annotations, and prove downstream utility. You can use system design, dataset review, eval design, simulation planning, or a paid task based on a safe sample.
Interview Against the Actual Validation Problem
NDA and IP assignment are completed first. Then access is scoped to source schemas, redacted samples, metadata, data catalogs, privacy rules, generation tools, validation metrics, model or QA use cases, and review stakeholders. The engineer starts with one dataset or scenario family where a first proof point can be produced without unnecessary exposure to sensitive data.
Onboard With Source Boundaries
By day 7, you should see a synthetic sample, generation plan, validation report, privacy-risk notes, schema constraints, bias or coverage gaps, and a recommendation on whether to improve, expand, restrict, or reject the dataset for its intended use. The point is not volume. The point is whether the data is useful and safe enough to move forward.
First Dataset Proof Point
During the risk-free trial, you evaluate whether the engineer can explain tradeoffs, detect broken assumptions, protect sensitive data, quantify statistical similarity, avoid unrealistic overfitting, and connect generated data to the downstream model, QA suite, or analytics workflow. If the fit is wrong, we replace the engineer within 48 hours.
Trial Check on Utility and Privacy Judgment

Synthetic Data Engineer: Engagement Options

Three transparent ways to engage. All rates are in USD and exclude taxes. No recruitment fees, no notice periods.

Pilot

Synthetic Pilot

$16,000

fixed

4 weeks, senior synthetic data engineer

  • One synthetic dataset delivered
  • Fidelity + privacy report
  • Validation suite
  • Production handover

Synth Pod

Synth + ML + Privacy

$13,500

/mo

3-person pod, 3–6 months

  • Production synthetic pipeline
  • Privacy-risk testing
  • Mixing + retraining loops
  • Compliance-grade documentation

Where Synthetic Data Engineers Create Leverage

Synthetic data is valuable when it removes a real blocker: privacy exposure, sparse edge cases, slow QA data setup, weak AI eval coverage, or limited training data. These are the use cases where a specialist can create leverage quickly.

01.

Privacy-Safe Test Data

Replace production database copies with realistic, schema-valid, relationship-preserving datasets for development, staging, QA, demos, and vendor workflows.

02.

Rare Scenario Coverage

Generate uncommon failures, fraud cases, claims, medical or financial exceptions, device states, sensor edge cases, and operational events that rarely appear in production samples.

03.

AI Evaluation Sets

Create controlled prompts, documents, tool-call examples, adversarial cases, expected answers, and grading rubrics for model regression tests and AI release gates.

04.

Regulated Data Sharing

Share realistic data with vendors, analytics teams, QA teams, or external reviewers while reducing exposure of personal, contractual, financial, health, or customer-confidential records.

What should change after you hire Synthetic Data Engineers

A CTO does not hire Synthetic Data Engineers for novelty or a folder of fake records. The hire has to unblock development, improve AI evaluation, protect sensitive information, expand rare-case coverage, and give the team evidence that synthetic data is safe enough and useful enough for the target workflow.

Outcome 01 Synthetic data that is useful for a specific job
+

The first meaningful outcome is a dataset or generation pipeline with a named purpose: QA fixtures, demo data, AI evaluation sets, ML training augmentation, analytics sandboxing, vendor sharing, simulation scenarios, or rare-case coverage. A Devlyn Synthetic Data Engineer should define what the generated data must preserve, what it must hide, and what it is not allowed to be used for. For tabular data, that may mean schemas, constraints, distributions, column-pair trends, entity relationships, and temporal patterns. For text and document data, it may mean field coverage, layout variation, language variation, redacted examples, expected answers, and adversarial cases. For image, robotics, or sensor data, it may mean scene variation, labels, camera conditions, object states, occlusions, lighting, and domain randomization.

Evidence to expect: Expect a named dataset purpose, source-data profile, generation method, acceptance criteria, validation report, versioned sample, and a clear recommendation on how the data should be used.

Outcome 02 Privacy risk treated as an engineering requirement
+

Synthetic data is not automatically anonymous, and pseudonymized data can still be personal data if people can be re-identified with additional information. A strong engagement documents the privacy boundary before generation starts. The engineer should identify direct identifiers, quasi-identifiers, rare combinations, memorized records, nearest-neighbor risk, membership-inference concerns, sensitive labels, and access rules. When differential privacy, masking, aggregation, sampling, or simulation is used, the tradeoff should be explicit: stronger privacy can reduce utility, and higher fidelity can increase re-identification risk.

Evidence to expect: Expect privacy-risk notes, sensitive-field handling, access boundaries, re-identification considerations, utility tradeoffs, and approval criteria before generated data is shared widely.

Outcome 03 Validation that goes beyond realistic-looking samples
+

A CTO needs more than sample rows that look convincing. The engagement should produce validation that fits the use case: schema validity, statistical similarity, distribution checks, column-pair trends, constraint violations, duplicate and uniqueness checks, label balance, bias indicators, task-level model performance, QA coverage, and human domain review. For LLM evaluation data, validation should include expected answers, grading rubrics, failure modes, and regression tracking. For synthetic visual data, validation should include annotation quality, scene diversity, sensor conditions, and real-world transfer checks.

Evidence to expect: Expect utility metrics, quality notes, known gaps, rejected examples, review sign-off, and a decision on whether the synthetic data is ready for development, QA, model evals, training, or restricted use only.

Outcome 04 A repeatable generation and review workflow
+

Synthetic data should not be a one-time export that nobody knows how to update. A strong engagement leaves your team with reproducible generation code, configuration, source assumptions, validation notebooks or scripts, dataset versioning, review steps, privacy boundaries, approval rules, and handover documentation. That matters when schemas change, a model needs new regression cases, QA needs fresh accounts, or legal and security stakeholders ask how the dataset was created.

Evidence to expect: Expect generation scripts or configuration, validation artifacts, dataset lineage, release notes, owner handoff, and clear rules for regenerating, approving, and retiring synthetic datasets.

How to decide if Devlyn is the right partner for Synthetic Data Engineers

Choose us when

You need a Synthetic Data Engineer who can work with sensitive or scarce data, produce useful datasets, document privacy and utility tradeoffs, and plug into your existing ML, QA, analytics, or data platform workflow without months of recruiting.

Interview for

Use the interview to test dataset profiling, modality-specific generation, schema and constraint design, SDV-style quality thinking, privacy-risk review, bias checks, simulation design, LLM eval construction, and downstream utility measurement.

Expect clarity on

Scope, source-data boundaries, privacy assumptions, data access, review cadence, validation metrics, dataset ownership, source-code access, IP assignment, security constraints, timezone overlap, and what proof should exist by day 7.

Do not accept

A generic shortlist, vague privacy claims, unclear pricing, weak data review process, or a vendor who cannot explain how generated data will be validated, governed, versioned, approved, and safely shared.

Delivery governance and risk control

Devlyn is positioned as a senior AI and software engineering partner, not a resume marketplace. You get structured onboarding, secure access, NDA and IP assignment support, communication overlap, replacement flexibility, and delivery governance built around the outcome you are hiring for.

For a Synthetic Data Engineer engagement, governance means generation methods, source assumptions, privacy constraints, validation metrics, approval rules, dataset lineage, and sensitive-data boundaries are documented. The engineer should not ask your team to trust synthetic data because it looks realistic. The work has to show how the data was produced, what it preserves, what it removes, what privacy risks remain, what downstream task it supports, and who is allowed to use it.

We keep the workflow practical. Synthetic datasets can be wired into CI, QA, model evaluation, analytics sandboxes, simulation workflows, or vendor sharing, but every path needs a review rule. That rule may be engineering approval, privacy review, legal review, model-owner sign-off, or a narrower access policy depending on the dataset and use case.

Ready to Hire a Synthetic Data Engineer?

Share the data type, source constraints, privacy boundary, and target workflow. We will shortlist engineers who can generate useful synthetic data, prove its utility, document its risks, and make the workflow repeatable for your team.

NDA Protected

7-Day Risk-Free Trial

AI-Native Delivery

Same-Day Response

Frequently Asked Questions

Answers for CTOs, engineering leaders, product leaders, operators, and hiring managers comparing senior engineering capacity, delivery models, risk controls, and long-term ownership.

You can usually begin the hiring process immediately and receive a shortlist within 24 hours after we understand your data type, target use case, privacy boundary, source constraints, tooling, timeline, and seniority bar. The shortlist is matched to the actual synthetic data problem, such as privacy-safe QA data, tabular data synthesis, LLM evaluation data, simulation scenes, rare-case generation, or ML training augmentation.

Yes. You interview shortlisted engineers before committing. We recommend testing how they profile source data, define constraints, choose generation methods, validate statistical similarity, evaluate privacy risk, handle rare cases, and connect generated data to QA, training, analytics, simulation, or model-evaluation workflows. For a CTO, the best interview signal is whether the engineer can explain what the synthetic data is safe for, what it is not safe for, and how they would prove that.

The first week should produce evidence, not just a generated file. You should see a source-data profile, dataset purpose, initial synthetic sample or generation plan, schema and constraint notes, validation approach, privacy-risk notes, bias or coverage gaps, and a recommendation on the next step. If the dataset is not ready for the intended use, the engineer should say that clearly and show what must change.

A strong Synthetic Data Engineer should deliver useful, governed synthetic data tied to a specific workflow. That may be privacy-safe development data, QA fixtures, LLM evaluation corpora, rare fraud or claims cases, synthetic documents, model-training augmentation, computer vision scenes, or analytics sandboxes. The outcome should be measurable through schema validity, statistical similarity, distribution and relationship checks, privacy-risk review, downstream model or QA impact, bias indicators, and stakeholder review.

Quality is managed through senior screening, role-specific interview criteria, data review, code review, documented assumptions, validation artifacts, and delivery checkpoints. For synthetic data work, we look for evidence that the engineer can preserve the patterns that matter while avoiding unsafe copying. We also look for clear documentation of source assumptions, privacy tradeoffs, generation parameters, validation metrics, known gaps, and rules for when the dataset can or cannot be used.

Yes. The engineer can work inside your data warehouse, lakehouse, notebooks, repositories, CI systems, QA tooling, model-evaluation stack, privacy review process, and communication channels. Common tool contexts include Python, SQL, dbt, Spark, Snowflake, BigQuery, Databricks, SDV, Gretel, OpenAI eval workflows, custom simulators, Omniverse Replicator-style scene generation, and internal data platforms. We define access boundaries before onboarding.

Yes. Devlyn works with distributed teams and plans overlap windows for interviews, standups, dataset review, privacy review, validation review, and handoff. For synthetic data engagements, overlap is especially useful when domain experts, legal, security, product, QA, and ML owners need to inspect the same dataset decision before it is used.

NDA and IP assignment are handled before onboarding. Access is scoped to the minimum required data, metadata, repositories, tooling, and environments. In many engagements, the engineer can start with schemas, redacted samples, profiling outputs, or controlled extracts before touching sensitive source data. Sensitive work follows your security rules, audit expectations, approval process, retention rules, and data-sharing constraints.

Use the risk-free trial to evaluate whether the engineer can reason clearly about source data, privacy risk, validation, downstream use, and technical tradeoffs. If the engineer produces data without explaining utility, privacy, known gaps, or acceptance criteria, that is not a good fit for this role. If the fit is wrong, we replace the engineer within 48 hours instead of forcing you through a long notice period or another sourcing cycle.

You can start with one Synthetic Data Engineer for a focused dataset or build a pod when the work spans data engineering, ML engineering, privacy review, QA automation, simulation, or platform integration. For example, a synthetic data specialist might design generation and validation while a data engineer handles pipelines, an ML engineer measures model impact, and a privacy engineer reviews re-identification risk.

Typical options include a Synthetic Pilot at $16,000 fixed scope, a Senior Synthetic Data Engineer from $5,000 per month, or a Synth + ML + Privacy pod from $13,500 per month. We confirm the right model after discovery so you can compare a focused dataset pilot, embedded specialist, or cross-functional pod against the business risk and timeline of your actual synthetic data requirement.

We can support both models. If you already have strong data, ML, QA, or product leadership, the engineer can plug into your process. If you need more structure, Devlyn can add delivery oversight, sprint planning, reporting, and senior technical review around source assumptions, generation milestones, validation results, privacy-risk decisions, and dataset handoff.

Devlyn reduces the hidden work of sourcing, vetting, onboarding, replacing, and governing specialist engineering talent. For synthetic data, that matters because weak work can create a false sense of safety: data may look realistic while leaking sensitive patterns, breaking relationships, distorting model behavior, or failing to improve test coverage. You get a shorter path to qualified candidates and a trial structure focused on evidence, not resume volume.

Devlyn is a better fit when the synthetic data work affects customer data, regulated workflows, model releases, QA coverage, vendor sharing, security posture, or long-term data governance. You get vetting, replacement support, delivery governance, IP protection, and continuity around outcomes such as useful synthetic datasets, validation reports, privacy-risk review, generation pipelines, and repeatable dataset operations.

Hire a Synthetic Data Engineer when the core problem is generating realistic, validated, privacy-aware data for a specific use case. A Data Engineer is often the right hire for pipelines, modeling, and warehouse reliability. An ML Engineer is often the right hire for model training, deployment, and evaluation. A Synthetic Data Engineer is the better fit when you need controlled data generation, schema and constraint preservation, privacy-risk reduction, long-tail scenario creation, simulation data, AI eval corpora, or QA datasets that replace unsafe production copies.