Top AI Staff Augmentation Services

Index.dev vs BairesDev: full comparison for 2026

Quick verdict

Index.dev (4.5/5) edges ahead of BairesDev (3.9/5) overall. Index.dev is the better choice for startups that want their money back if the first month doesn't work. BairesDev is the stronger option for U.S. buyers who want AI and software engineers under one nearshore contract. The right choice depends on your project size, budget, and required tech stack.

Index.dev vs BairesDev: head-to-head summary

Criterion Index.dev BairesDev
Founded 2019 2009
HQ London, United Kingdom San Francisco, California, USA
Team size 30,000+ network 4,000+
Rating 4.5 / 5 3.9 / 5
Primary differentiator A refundable 30-day trial on every placement, plus direct hire One contract for mixed AI and software teams in U.S. time zones
Pricing model Monthly rate per engineer; direct-hire fee; 30-day refundable trial; rates on request Monthly per engineer or team; rates on request
Min. engagement Not published Not published
Primary tech stack Python, PyTorch, LangChain Python, TensorFlow, PyTorch
Industries served SaaS, Fintech, E-commerce, AI labs, Healthcare Technology, Financial services, Healthcare, Retail, Media

Index.dev vs BairesDev: 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.

BairesDev

BairesDev was founded in Buenos Aires in 2009, is headquartered in San Francisco and employs several thousand engineers across Latin America. Buyers can choose staff augmentation, dedicated teams or project delivery, and the AI practice covers ML, data engineering and generative AI. It is a practical choice when one contract needs to cover AI engineers and the software developers around them. As a generalist, though, its AI depth varies by engineer, and rates are not published.

Services and capabilities: Index.dev vs BairesDev

Capability Index.dev BairesDev
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 BairesDev

Framework / platform Index.dev BairesDev
PyTorch ✓ ✓
TensorFlow N/A ✓
LangChain ✓ N/A
Hugging Face ✓ N/A
OpenAI ✓ ✓
AWS ✓ ✓
Azure N/A ✓
Google Cloud ✓ ✓
Databricks N/A N/A
Kubernetes N/A N/A

Pricing comparison: Index.dev vs BairesDev

Criterion Index.dev BairesDev
Minimum engagement Not published Not published
Engagement models Full-time dedicated, Dedicated team, Direct hire, Trial period Full-time dedicated, Dedicated team, Project delivery
Rate transparency Not public Not public
Price tier Mid-market Mid-market

Target audience comparison: Index.dev vs BairesDev

Dimension Index.dev BairesDev
Best company size Startup to mid-market Startup to mid-market
Best industries SaaS, Fintech, E-commerce Technology, Financial services, Healthcare
Best use cases Trialling a Latin American LLM engineer for a month, Hiring a PhD-level specialist to fine-tune a model Staffing a GenAI feature team with supporting developers, Adding data engineers to a nearshore program
Typical project type Full-time dedicated Full-time dedicated

Index.dev vs BairesDev: 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
BairesDev
+ Large bench in U.S. time zones
+ Mixed AI and software teams
+ Mature contracting
- AI depth varies
- No public rates
- No published trial

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 BairesDev?

A typical fit: staffing a GenAI feature team with supporting developers.

One contract for mixed AI and software teams in U.S. time zones. Minimum engagement is not publicly disclosed. Works best with clients in Technology, Financial services, Healthcare, Retail, Media.

Decision matrix: Index.dev vs BairesDev

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 BairesDev (Not published)
You may want to hire the engineer permanently later Index.dev
You want several engineers working as one team BairesDev

Use case fit: Index.dev vs BairesDev

Use case Index.dev fit BairesDev 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 Limited Index.dev
Staffing a GenAI feature team with supporting developers Limited Strong BairesDev
Adding data engineers to a nearshore program Limited Strong BairesDev

Verdict: Index.dev vs BairesDev

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.

BairesDev (3.9/5) is worth a look if you need adding data engineers to a nearshore program. If your situation matches that, BairesDev is a competitive option.

Related comparisons

Index.dev vs BairesDev FAQ

Is Index.dev better than BairesDev?

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. BairesDev's strongest advantage: large bench in U.S. time zones.

How do Index.dev and BairesDev differ in pricing?

Index.dev uses monthly rate per engineer; direct-hire fee; 30-day refundable trial; rates on request pricing. BairesDev uses monthly per engineer or team; 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 BairesDev?

Index.dev 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 BairesDev?

Index.dev's primary differentiator is: a refundable 30-day trial on every placement, plus direct hire. BairesDev's primary differentiator is: one contract for mixed AI and software teams in U.S. time zones. They also differ in team size (30,000+ network vs 4,000+), minimum engagement (Not published vs Not published), and primary industries served (SaaS, Fintech vs Technology, Financial services).

Verify all details directly with each provider before making a decision.