Index.dev vs Data Science UA: full comparison for 2026
Quick verdict
Index.dev (4.5/5) edges ahead of Data Science UA (3.8/5) overall. Index.dev is the better choice for startups that want their money back if the first month doesn't work. Data Science UA is the stronger option for companies that want to choose between a recruiting fee and monthly outstaffing for Ukrainian AI talent. The right choice depends on your project size, budget, and required tech stack.
Index.dev vs Data Science UA: head-to-head summary
| Criterion | Index.dev | Data Science UA |
|---|---|---|
| Founded | 2019 | 2016 |
| HQ | London, United Kingdom | Kyiv, Ukraine (legal HQ London) |
| Team size | 30,000+ network | 50–200 |
| Rating | 4.5 / 5 | 3.8 / 5 |
| Primary differentiator | A refundable 30-day trial on every placement, plus direct hire | Recruiting fee or monthly outstaffing from an AI-only recruiter |
| Pricing model | Monthly rate per engineer; direct-hire fee; 30-day refundable trial; rates on request | Recruiting fee per hire; outstaffing billed monthly; rates on request |
| Min. engagement | Not published | Not published |
| Primary tech stack | Python, PyTorch, LangChain | Python, PyTorch, TensorFlow |
| Industries served | SaaS, Fintech, E-commerce, AI labs, Healthcare | Technology, Fintech, Healthcare, Retail, Gaming |
Index.dev vs Data Science UA: overview
Index.dev
Index.dev, legally Index Soft Limited, is a London talent platform that its job ads date to 2019. Its buying terms are the clearest of any network here: every placement carries a 30-day trial with a full refund if the match fails. You can contract one engineer, build a dedicated offshore team or hire someone directly. The main pool of more than 30,000 engineers sits in Latin America and Central and Eastern Europe, and a separate AI unit supplies Master's and PhD-level people for fine-tuning and retrieval work. Vetting runs through five stages with human reviewers.
Data Science UA
Data Science UA grew out of a 2016 data science conference in Kyiv and now runs recruiting, outstaffing and AI consulting, with a legal base in London. It offers two ways to buy. You can pay a recruiting fee for a permanent hire, which it says takes two to four weeks on average, or take the engineer on monthly outstaffing terms first. Its AI community, quoted at 10,000 to 30,000 people, gives it reach. Screening is done by recruiters, so plan your own technical interview.
Services and capabilities: Index.dev vs Data Science UA
| Capability | Index.dev | Data Science UA |
|---|---|---|
| Full-time dedicated engineers | ✓ | ✓ |
| Part-time / fractional experts | ✗ | ✗ |
| Dedicated team | ✓ | ✓ |
| Trial before commitment | ✓ | ✗ |
| Published rates | ✗ | ✗ |
| Direct hire option | ✓ | ✓ |
| Subscription or output-based pricing | ✗ | ✗ |
| Nearshore time-zone overlap | ✓ | ✗ |
| LLM / GenAI engineers | ✓ | ✗ |
| MLOps | ✗ | ✗ |
| Computer vision | ✗ | ✓ |
| Data engineering | ✗ | ✗ |
Tech stack comparison: Index.dev vs Data Science UA
| Framework / platform | Index.dev | Data Science UA |
|---|---|---|
| PyTorch | ✓ | ✓ |
| TensorFlow | N/A | ✓ |
| LangChain | ✓ | N/A |
| Hugging Face | ✓ | N/A |
| OpenAI | ✓ | N/A |
| AWS | ✓ | ✓ |
| Azure | N/A | N/A |
| Google Cloud | ✓ | N/A |
| Databricks | N/A | N/A |
| Kubernetes | N/A | N/A |
Pricing comparison: Index.dev vs Data Science UA
| Criterion | Index.dev | Data Science UA |
|---|---|---|
| Minimum engagement | Not published | Not published |
| Engagement models | Full-time dedicated, Dedicated team, Direct hire, Trial period | Direct hire, Full-time dedicated, Dedicated team |
| Rate transparency | Not public | Not public |
| Price tier | Mid-market | Mid-market |
Target audience comparison: Index.dev vs Data Science UA
| Dimension | Index.dev | Data Science UA |
|---|---|---|
| Best company size | Startup to mid-market | Startup to mid-market |
| Best industries | SaaS, Fintech, E-commerce | Technology, Fintech, Healthcare |
| Best use cases | Trialling a Latin American LLM engineer for a month, Hiring a PhD-level specialist to fine-tune a model | Hiring a permanent ML engineer in Ukraine, Outstaffing a computer vision engineer before a permanent offer |
| Typical project type | Full-time dedicated | Direct hire |
Index.dev vs Data Science UA: pros and cons
| Index.dev | |
|---|---|
| + | A full refund in the first 30 days lowers the cost of a bad match |
| + | Contract and direct-hire routes from one provider |
| + | Talent in both U.S.-friendly and European time zones |
| - | Engineers are network members, not employees |
| - | Acceptance-rate figures are the company's own |
| - | No published monthly rates |
| Data Science UA | |
|---|---|
| + | Both recruiting and outstaffing |
| + | Recruiters focused on AI roles |
| + | Large Ukrainian AI community |
| - | Recruiter-led screening |
| - | Size and headquarters vary by source |
| - | Wartime continuity risk |
Who should choose Index.dev?
A typical fit: trialling a Latin American LLM engineer for a month.
A refundable 30-day trial on every placement, plus direct hire. Minimum engagement is not publicly disclosed. Works best with clients in SaaS, Fintech, E-commerce, AI labs, Healthcare.
Who should choose Data Science UA?
A typical fit: hiring a permanent ML engineer in Ukraine.
Recruiting fee or monthly outstaffing from an AI-only recruiter. Minimum engagement is not publicly disclosed. Works best with clients in Technology, Fintech, Healthcare, Retail, Gaming.
Decision matrix: Index.dev vs Data Science UA
| Your situation | Recommended choice |
|---|---|
| You want one engineer full-time on a monthly contract | Both; Index.dev rates higher overall |
| You only need a specialist a few days a week | Neither advertises part-time experts; ask about reduced hours |
| You want to test an engineer before committing | Index.dev |
| You need a rate before the first call | Neither publishes rates; ask both for a written rate card |
| Your budget is at the lower end | Compare: Index.dev (Not published) vs Data Science UA (Not published) |
| You may want to hire the engineer permanently later | Both; Index.dev rates higher overall |
| You want several engineers working as one team | Data Science UA |
Use case fit: Index.dev vs Data Science UA
| Use case | Index.dev fit | Data Science UA fit | Winner |
|---|---|---|---|
| Trialling a Latin American LLM engineer for a month | Strong | Limited | Index.dev |
| Hiring a PhD-level specialist to fine-tune a model | Strong | Strong | Both equally |
| Hiring a permanent ML engineer in Ukraine | Strong | Strong | Both equally |
| Outstaffing a computer vision engineer before a permanent offer | Limited | Strong | Data Science UA |
Verdict: Index.dev vs Data Science UA
Index.dev (4.5/5) is the stronger overall choice for most AI Staff Augmentation projects. A refundable 30-day trial on every placement, plus direct hire.
Data Science UA (3.8/5) is worth a look if you need outstaffing a computer vision engineer before a permanent offer. If your situation matches that, Data Science UA is a competitive option.
Related comparisons
Index.dev vs Data Science UA FAQ
Is Index.dev better than Data Science UA?
Index.dev (4.5/5) scores higher overall, but "better" depends on your use case. Index.dev's strongest advantage: a full refund in the first 30 days lowers the cost of a bad match. Data Science UA's strongest advantage: both recruiting and outstaffing.
How do Index.dev and Data Science UA differ in pricing?
Index.dev uses monthly rate per engineer; direct-hire fee; 30-day refundable trial; rates on request pricing. Data Science UA uses recruiting fee per hire; outstaffing billed monthly; rates on request pricing. Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.
Which is better for enterprise: Index.dev or Data Science UA?
Data Science UA is the larger team and typically the better enterprise-scale choice. For very large programmes, verify team size and compliance coverage directly with each provider before shortlisting.
What are the main differences between Index.dev and Data Science UA?
Index.dev's primary differentiator is: a refundable 30-day trial on every placement, plus direct hire. Data Science UA's primary differentiator is: recruiting fee or monthly outstaffing from an AI-only recruiter. They also differ in team size (30,000+ network vs 50–200), minimum engagement (Not published vs Not published), and primary industries served (SaaS, Fintech vs Technology, Fintech).
Verify all details directly with each provider before making a decision.