$5,000+
$30 - $49 / hr
10 - 49
Startups
Estonia, Tallinn
2013
Within 1 week

Core Services



1. AWS Consulting and Development
Migration from on-premise or other cloud providers to AWS
AWS Cloud Infrastructure Setup for Startups & MVPs
Identity & Access Management
AWS Application Modernization
MVP & PoC Delivery on AWS
Serverless Application Development on AWS
AI Agent Development Services
AWS Cloud Consulting



✅ Benefits: Faster launches, reduced technical debt, zero-downtime migration, future-proof infrastructure.


 
2. AWS DevOps Services
CI/CD pipeline design and implementation (GitHub Actions, GitLab, Bitbucket, etc.)
Infrastructure as Code (Terraform, CloudFormation, AWS CDK, Pulumi)
Automated environment management (staging, production)
Keycloak deployment / SSO integration / IAM roles with AWS
GitOps, platform engineering, and advisory services
AI Evaluation Pipeline /  LLM-as-a-Judge
✅ Benefits: Faster deployments, improved developer productivity, stronger reliability, reduced downtime.


 
3. AWS Managed Services
Tiered AWS support packages (BASIC, STANDARD, PREMIUM)
24/7 infrastructure monitoring and incident response
Proactive AWS reviews and architecture optimization
AWS cost monitoring & billing insights
SLA-backed troubleshooting and fixes
Fractional CTO
✅ Benefits: Predictable support costs, fewer production incidents, peace of mind for lean teams.


 
4. AWS Cost Optimization
AWS Well-Architected Framework reviews
IAM & multi-account best practices assessments
Vulnerability scanning & patch management
Compliance readiness (SOC2, HIPAA, ISO 27001)
AWS cost audits, credits, and partner discounts
✅ Benefits: Optimized costs, compliance confidence, reduced risk, clear visibility into infrastructure health.


 

Techreviewer rating

  Submit a review
5.0

Client review platforms

The company's reputation is reflected through ratings and reviews from different review websites:

5.0
(15 reviews)Clutch

AI Overview

Powered bytechreviewer AI
This company performance overview is based on AI analysis of 15 client reviews across 1 review platform. Read more about our methodology.
Last updated: April 2026

Performance snapshot

Perfsys is a cloud-focused development and consulting firm with a strong specialization in AWS services, custom software development, AI integration, and DevOps. Across 15 reviews spanning from 2018 to late 2025, the vendor consistently earns near-perfect ratings with no recurring negative themes. The only isolated concerns noted were a below-average cost rating in one older review and a minor suggestion around bespoke development quality, neither of which represents a systemic pattern.

Performance breakdown

Technical expertise
Strong

Reviewers consistently praise Perfsys's AWS depth, citing expertise across Cognito, Pinpoint, Athena, Amplify, Kubernetes, and serverless architectures. Multiple reviews reference AI/ML integration, CI/CD configuration, and robust security posture improvements as specific technical outcomes.

Project management & delivery
Strong

Perfsys completed all nine planned milestones in one engagement and consistently delivered within agreed timelines across multiple projects. Weekly meetings, structured workflows, and timely deliverables are repeatedly cited, with schedule sub-ratings averaging 4.9 or above across reviewed engagements.

Communication & collaboration
Strong

Clients across multiple geographies, including the UK, Ireland, Canada, and the US, highlight responsive communication via virtual meetings and email. Reviewers specifically commend Perfsys's proactive updates, genuine project interest, and transparency throughout engagements.

Reliability
Strong

Multiple reviewers report stable, bug-free production environments and consistent responsiveness over long-term engagements, some spanning over two years. One reviewer specifically noted Perfsys 'excels in adhering to timelines and producing error-free work regardless of complexity.'

Client satisfaction & outcomes
Strong

Tangible outcomes include reduced monthly server costs, hundreds of hours of manual work eliminated, improved cloud security posture, and a demonstrable investor-ready MVP. Cost sub-ratings are overwhelmingly 5.0, with willingness-to-refer scores at or near perfect across all reviewed engagements.

Best for

Perfsys is best suited for startups and SMEs requiring AWS cloud architecture, migration, security assessments, or AI-integrated custom software. Their depth in serverless infrastructure, DevOps, and cloud security makes them a strong fit for technically complex, compliance-sensitive engagements.

Clients info

Perfsys primarily serves small technology startups and SMEs, with most clients in the 1–10 and 11–50 employee bands. Industries served include information technology, financial services, energy, media, advertising, healthcare, and business services. Project budgets are largely confidential, though disclosed engagements range from under $10,000 to $199,999. Primary industries represented include Information Technology, Financial Services, Energy & Natural Resources, Media, Advertising & Marketing, Healthcare, Business Services. Typical client size bands include 1–10 Employees, 11–50 Employees, 51–200 Employees, 201–500 Employees. Common project budget ranges include Less than $10,000, $10,000 to $49,999, $50,000 to $199,999, Confidential.

Review strength

The assessment is based on 15 reviews sourced from a single platform, spanning October 2018 to January 2026. The majority of reviews are recent, with 11 of 15 published within the last two years, providing a strong and current evidence base. Two reviews date to 2020 and two to 2018, which are over four years old and carry reduced weighting. Review date range: Mar 13, 2018 - Jan 2026.

Performance breakdown

Technical expertise
Strong

Reviewers consistently praise Perfsys's AWS depth, citing expertise across Cognito, Pinpoint, Athena, Amplify, Kubernetes, and serverless architectures. Multiple reviews reference AI/ML integration, CI/CD configuration, and robust security posture improvements as specific technical outcomes.

Project management & delivery
Strong

Perfsys completed all nine planned milestones in one engagement and consistently delivered within agreed timelines across multiple projects. Weekly meetings, structured workflows, and timely deliverables are repeatedly cited, with schedule sub-ratings averaging 4.9 or above across reviewed engagements.

Communication & collaboration
Strong

Clients across multiple geographies, including the UK, Ireland, Canada, and the US, highlight responsive communication via virtual meetings and email. Reviewers specifically commend Perfsys's proactive updates, genuine project interest, and transparency throughout engagements.

Reliability
Strong

Multiple reviewers report stable, bug-free production environments and consistent responsiveness over long-term engagements, some spanning over two years. One reviewer specifically noted Perfsys 'excels in adhering to timelines and producing error-free work regardless of complexity.'

Client satisfaction & outcomes
Strong

Tangible outcomes include reduced monthly server costs, hundreds of hours of manual work eliminated, improved cloud security posture, and a demonstrable investor-ready MVP. Cost sub-ratings are overwhelmingly 5.0, with willingness-to-refer scores at or near perfect across all reviewed engagements.

Location and contacts

Estonia, Tallinn
Tuukri tn 19-315
10120
Estonia, Tallinn
Tuukri tn 19-315
10120
Croatia, Split
Tončićeva ul. 3
21000
Croatia, Split
Tončićeva ul. 3
21000

Major clients

My VPA
Infoplay
Titta
Enovos
IGT!
Parkland
Kazang

Processes and approach