HSG IT We Built WebCallHub —
The Voice Layer for Websites
HSG IT USA LLC is the American engineering & sales arm behind WebCallHub — AI voice agents that replace contact forms with real conversations. We also source senior AI/ML, DevOps, QA & Cloud engineers from our Finland, Poland & India talent network.
Source Senior
AI & ML Engineers
for Your Project
Need LLM, RAG, MLOps or AI-augmented QA engineers? We recruit and place senior AI/ML talent from our European and Indian network. You define the role; we send vetted shortlist candidates in 48 hours. Typical placement: 2–4 weeks.
Engineers with OpenAI, Anthropic, LangChain experience
QA engineers familiar with AI test tooling
MLflow, Kubeflow, SageMaker, Vertex AI specialists
WebRTC engineers w/ AI voice (we built WebCallHub)
What We Do
DevOps Consulting
CI/CD, Kubernetes, infrastructure automation, and platform engineering for high-growth teams.
Test Automation
Selenium, Cypress, Playwright, Robot Framework — shift-left QA that ships with confidence.
VoIP & WebRTC
Browser-based calling, Asterisk PBX, SIP trunking, and real-time communications for enterprise and startups.
Security Testing
Penetration testing, DevSecOps pipelines, compliance automation, vulnerability management, and SOC2 readiness.
Cloud Infrastructure
AWS, Azure, GCP — architecture, migration, cost optimization, and managed operations.
Full Stack Development
React, Node, Python, Go — product engineering from MVP to scale with senior developers.
Engagement Models
Dedicated Team
A full engineering team exclusively assigned to your project. You manage priorities — we provide the talent, infrastructure, and delivery management.
Staff Augmentation
Embed senior engineers directly into your existing teams. They work your hours, use your tools, and report to your leads — fully integrated from day one.
Project-Based
Fixed-scope engagements with clear deliverables, timelines, and budgets. Ideal for migrations, platform builds, and QA overhauls.
Managed Services
Ongoing operations, monitoring, and optimization of your infrastructure. SLA-backed support with 24/7 coverage across time zones.
Build Our Vendor Network
We work two ways: we supply senior engineers to US enterprises, and we partner with specialized subvendors who bring strong, hard-to-find profiles. Tell us where you fit.
Need senior offshore or European engineers — on a US contract?
Send us the requirement. We respond with shortlist + rates within 24h. Common: DevOps, Cloud, WebRTC, QA, Security, Full Stack, AI/ML, SAP. Engagement on C2C, W2, 1099, or direct full-time.
- ✓Vetted senior bench in Finland · Poland · India
- ✓US-incorporated invoicing entity (Delaware LLC, Austin HQ)
- ✓Background checks, NDA & MSA boilerplate ready to sign
- ✓EU-resident option via our Finnish entity for GDPR-sensitive scope
Got strong consultants?
Become a preferred subvendor.
We continuously source niche profiles for our US enterprise & mid-market clients. If you run a delivery shop or staffing firm in the EU, India, LATAM, or Eastern Europe, get on our routing list — we forward live requirements when there's a fit.
- ✓Recurring requirements once approved (typically weekly)
- ✓Net-30 USD invoicing — no chasing end-clients
- ✓MSA + NDA processed in ≤ 5 working days
- ✓We own the client relationship — you supply the talent
Profiles we source weekly
Standing demand from our active US client base.
DevOps / SRE
K8s, Terraform, AWS/GCP/Azure, GitOps
Cloud Architects
AWS Pro, Azure Solutions, FinOps, migration
QA / Test Automation
Playwright, Selenium, Robot Framework, API
Security / DevSecOps
SOC2, pentest, SAST/DAST, GRC
WebRTC / VoIP
Asterisk, FreeSWITCH, SIP, Kamailio
AI / ML / LLM
LangChain, RAG, fine-tuning, MLOps
Senior Full Stack
React/Node, Python, Go, Java, TS
SAP / Data
S/4HANA, ABAP, Snowflake, dbt, Airflow
Client Case Studies
Telecom Platform Migration
Migrated a European telecom operator's legacy PBX to cloud-native WebRTC. Reduced costs by 60% and improved call quality by 40%. Delivered in 4 months with zero downtime.
Cost Reduction
Downtime
Delivered
DevOps Transformation
Built complete CI/CD for a US fintech. From 2-week releases to multiple daily deployments. Kubernetes on AWS with automated security scanning.
Faster Releases
Uptime
Our Products
WebCallHub AI
AI Receptionist for websites. Visitors click a button and talk to an AI that knows your business, answers questions, books appointments, and hands off to humans. Browser-native voice — no phone numbers, no developer needed. From $49/mo.
WebCallHub
Browser-to-browser calling widget. Add a call button so visitors talk to your team instantly. AI transcription, analytics, and CRM included. Free tier available.
SuomiJobs
The IT job board connecting international engineering talent with opportunities in Finland and the USA. 50+ live positions. Free for candidates.
Visit suomijobs.com →Why Companies Choose Us
Open Consultancy Positions
Join our team of senior engineers working with Fortune 500 clients. 100% remote or hybrid. Competitive rates paid in USD.
Senior DevOps Engineer
Remote (US) · Full-Time
AWS, Kubernetes, Terraform, CI/CD. Work with Series B+ fintech clients on infrastructure modernization.
$130–180k/yr · C2C/W2
Apply NowFull Stack Engineer
Remote (US) · Contract
React, Node.js, Python, PostgreSQL. Build SaaS products end-to-end for early-stage startups and enterprise clients.
$95–140/hr · C2C
Apply NowWebRTC / VoIP Engineer
Remote (US) · Full-Time
Asterisk, FreeSWITCH, WebRTC, SIP. Rare specialized role — join our team building WebCallHub and client telecom platforms.
$140–200k/yr · W2
Apply NowQA / Test Automation Lead
Remote (US) · Full-Time
Playwright, Selenium, Robot Framework, API testing. Lead QA strategy for enterprise clients across fintech and healthcare.
$120–165k/yr · W2
Apply NowCloud Solutions Architect
Hybrid (Austin) · Full-Time
AWS/Azure/GCP multi-cloud, cost optimization, migration planning. Design scalable architectures for enterprise clients.
$150–210k/yr · W2
Apply NowSecurity Engineer
Remote (US) · Contract
SOC2, penetration testing, vulnerability assessment, SAST/DAST. Help clients achieve compliance certifications.
$90–130/hr · C2C
Apply NowDon't see your role? We're always looking for exceptional engineers.
Submit Your CV View All PositionsWhat Clients Say
“We replaced our contact form with WebCallHub on our pricing page on a Friday. By Monday, demo bookings had doubled. Customers would rather talk than type when they're about to spend money.”
“Our agents lost half their inbound leads to voicemail. Now buyers click 'Call agent' on the listing page and reach the right person in four seconds. Close rates are up 31% this quarter.”
“Switched from a PSTN call centre to WebCallHub. EU customers stopped asking where our data lives — GDPR-ready out of the box, no phone numbers to leak. Audio is genuinely better than what we paid €3,800/month for.”
“I run an accounting practice across three cities. The mobile app means I can take a client call between meetings without sounding like I'm in a parking lot. It just works.”
Results from real engagements. Company names withheld per NDA.
Connect with our engineering team on LinkedIn
We post weekly: AI engineering deep-dives, WebRTC tutorials, hiring updates, and behind-the-scenes from our delivery centers in Finland, Poland, and India. Follow both pages so you don't miss anything.
Or share this page on LinkedIn: Share →
Let's Talk
Ready to scale your engineering team? Choose how you want to connect.
Click the call button to speak with our team instantly via browser — no phone needed
Start CallWe respond within 4 hours
5900 Balcones Dr, Suite 100
Austin, TX 78731
Mon–Fri, 9am–6pm CT
Engagement Pricing
Staff Augmentation
Embed senior engineers into your teams. Your tools, your processes, our expertise.
Get QuoteDedicated Team
Full team exclusively assigned. Delivery management included. Scale as needed.
Get QuoteProject-Based
Fixed-scope with clear deliverables and timelines. Ideal for migrations and audits.
Get QuoteFrequently Asked Questions
How quickly can you start?
Within 2 weeks. We maintain a bench of pre-vetted senior engineers ready to deploy. For dedicated teams, we can ramp up to full capacity within 4 weeks.
What engagement models do you offer?
Dedicated teams, staff augmentation, project-based, and managed services. We adapt to your workflow and can switch models as your needs change.
Where are your engineers located?
Finland, Poland, India, and remote. Our three delivery centers provide timezone coverage and cost flexibility. All engineers are senior-level with 5+ years of experience.
How do you ensure quality?
Senior-only hiring, 20+ years founder experience, rigorous vetting, and continuous delivery metrics. Every engineer has been personally assessed by our technical leadership.
Can we start with a small pilot?
Yes, start with 1-2 engineers on a short-term engagement. Most clients begin with a pilot and scale up once they see the quality and speed of delivery.
Ready to Scale Your Team?
Schedule a call with our engineering team. No sales pitch — just a conversation about your needs.