Hire API developer

Hire API developer—pre-vetted, start in 48 hrs, guaranteed.

Unique Selling Point: access to a senior-only talent pool. Average hiring time: 2.3 days.

Interview in 24 hrs
Silicon-grade vetting
Monthly or on-demand

Available Engineers

Deploy 320+ screened API developers ready to start within 48 hrs.

First Interview

Hire in 2.3 days—average time to first technical interview.

Satisfaction Score

Achieve 4.9 / 5 client rating across 70 API staffing projects.

Contract Length

Maintain agility—avg. contract lasts just 7.6 months.

FinTech Latency Cut

A mid-market PSP needed to Hire API developer talent fast to optimize its payment routing layer.

Our augmented squad of two senior Go engineers integrated within 24 hrs and refactored critical API endpoints, implementing gRPC-based batching and proactive caching.

The result: 43 % lower transaction latency, 32 % drop in error rates, and a $280 K annual AWS saving, achieved in eight weeks.

HealthTech Scaling

A Series-B tele-medicine platform lacked senior API bandwidth to certify HIPAA-compliant integrations.

We embedded three vetted Node/TypeScript specialists who automated audit logging, encryption gates, and SSO flows while mentoring the in-house team.

Outcome: 75 % faster release cadence and 0 security findings during third-party penetration testing—delivered in under 10 weeks.

eCommerce Migration

A global retailer migrating to headless architecture required rapid API refactoring without stalling sales events.

Our remote Kotlin and Python duo rewrote legacy endpoints, built contract tests, and set up blue-green deployment pipelines.

Results: 99.98 % uptime during Black Friday and a 18 % checkout speed boost that translated to $1.4 M extra revenue in Q4.

Book Your 15-Minute Discovery Call

120+ API engineers placed, 4.9/5 avg rating. Talk with a technical consultant and get a curated shortlist within 24 hours.

Join us

Hire the best

Why outstaff instead of hiring directly?
Save up to 40 % on total cost of ownership, slash recruitment cycles from months to days, and stay in full control of deliverables. You access battle-tested talent that scales up or down with project demand—no payroll, no long-term liabilities, no HR overhead. Our transparent model lets you focus on product while we cover sourcing, vetting, legal, and retention.

Industries

FinTech & Payments

Tasks: real-time transaction routing, KYC API integrations, PSD2 compliance. Our outstaffing Hire API developer model delivers low-latency endpoints and shields IP while trimming burn rate.

eCommerce Platforms

Tasks: catalog search, headless checkout APIs, promo engine micro-services. Contract API integration developer squads ramp in a week, ensuring peak-season stability.

HealthTech

Tasks: HIPAA-ready data exchange, EHR interoperability, wearable device APIs. Outstaffed API engineers add bandwidth without exposing protected health information.

Logistics & TMS

Tasks: carrier API aggregation, real-time tracking, rate-shopping endpoints. Hire REST API engineer teams to cut go-live from 6 months to 6 weeks.

MarTech

Tasks: third-party ad network connectors, attribution APIs, high-volume webhooks. Outstaffing Hire API developer talent keeps costs variable and predictable.

IoT & Devices

Tasks: MQTT gateways, firmware OTA APIs, edge analytics. Our contract API developers create secure pipelines across flaky networks.

TravelTech

Tasks: GDS integrations, dynamic pricing engines, booking API performance tuning. Scale your team seasonally with vetted API specialists.

EdTech

Tasks: LTI-compliant integrations, adaptive learning endpoints, analytics feeds. Outstaffed API engineers shorten accreditation cycles.

InsurTech

Tasks: policy issuance APIs, claims automation, actuarial data exchange. Secure NDAs protect your algorithms while you hire API developer talent on subscription.

No Hiring Fees

48-Hr Kickoff

Scale Flexibly

Global Talent Pool

Timezone Overlap

Legal & Payroll Offload

Enterprise NDAs

IP Retention

Dedicated PM Support

Swap Anytime

Performance Reports

Trial Period

Schedule Discovery Call

Share roadmap & tech stack — 30 mins.

Receive Candidate Shortlist

Get vetted profiles in 24-48 hrs.

Onboard & Scale Team

Start sprints within 1-3 days.

Control & Optimize

Track KPIs, swap or expand anytime.

What Technical Leaders Say

“smartbrain.io cut our hiring cycle from 10 weeks to 4 days.” Their API developers integrated with our .NET micro-services, boosting release velocity 30 % and freeing my core team for roadmap work.

Emily Carter

VP Engineering

SurePay Financial

We needed GraphQL expertise for a healthcare portal. smartbrain.io sourced HIPAA-aware engineers in 48 hrs. Error rate dropped 28 % after their pull requests landed.

Michael Johnson

CTO

WellPath Health

Our eCommerce API hit 1 000 RPS limits. The outstaffed team optimized caching and cut latency by 42 %. Onboarding was same-day.

Sofia Martinez

Head of Platform

ShopHive Inc.

Impressed by their replacement guarantee. When we pivoted stack, smartbrain.io swapped a Java engineer for Rust within 24 hrs—zero downtime.

James Peterson

Chief Architect

RouteLogic

Their contract API integration developer joined our MarTech sprint and delivered four connectors ahead of schedule, boosting campaign automation by 20 %.

Olivia Brooks

Product Director

AdPulse Media

smartbrain.io handled all compliance paperwork. Our InsurTech APIs passed audit with 0 critical findings.

Daniel White

Founder & CEO

CoverSure Analytics

Frequently Asked Questions

What is the true cost to hire API developers compared with outstaffing?

Direct hiring involves recruiter fees, payroll taxes, benefits, equipment, and overhead. When you Hire API developer talent via smartbrain.io, you pay a transparent blended hourly rate. Clients typically save 25-40 % on total cost of ownership because we absorb sourcing, vetting, HR, and retention expenses. Plus, you avoid sunk costs when projects wind down—simply scale down or pause the engagement.

How does smartbrain.io protect IP and ensure data security?

Every engineer signs enterprise-grade NDAs and IP assignment agreements before engagement. Our infrastructure enforces SSO, MFA, device checks, and ISO-27001-aligned policies. You retain full repo control; contractors work in your environments. smartbrain.io never reuses proprietary code across clients.

Will time-zone differences slow collaboration with outstaffed API teams?

No. We staff within ±3 hours of your core time zone or provide mandatory overlap windows for stand-ups and reviews. Our distributed model ensures at least 4 shared hours daily, so velocity remains unaffected.

What are your contract terms and minimum commitment?

Engagements start at 20 hours weekly for one month. After that, scale up, down, or cancel with 14-day notice—no lock-ins.

How rigorous is your candidate vetting process?

We accept only the top 2 % of applicants. Each candidate completes automated coding challenges, live system-design interviews, soft-skill screening, and reference checks, ensuring you Hire API developer talent that ships quality code from day one.

What happens if an engineer under-performs?

Our replacement guarantee covers you. Report the issue, and we present alternate profiles within 72 hrs at no additional cost. Your sprint schedule stays intact.

How soon can we kick off after signing?

Most clients conduct the first interview within 48 hrs and onboard their chosen API engineer in under five business days. Emergency staffing can start same-day when needed.

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