Perfsys — AWS Consulting Partner
Anastasiia Tokareva

Anastasiia Tokareva

Ex-Software Engineer at Perfsys focused on building reliable, well-tested features across the product's frontend and backend. She enjoys turning complex requirements into clean, maintainable code.

Certifications:
  • AWS Certified Developer – Associate

Case Studies by Anastasiia Tokareva

Tibica: Serverless Cloud Marketplace on AWS

4

cloud applications

5

infrastructure microservices

26

AWS services used

Cloud MarketplaceServerlessSaaS

Tibica: Serverless Cloud Marketplace on AWS

Perfsys built Tibica's serverless cloud marketplace on AWS with 4 applications across 5 microservices and 26 AWS services — enabling multi-tenant deployments, git-based version control, and a headless CMS for startups and enterprises.

AWS-based VOD: Building Scalable System for Roligt AB

3

independent applications

30

work days to complete

20

AWS services used

MEDIAVOD PLATFORMMVPSWEDEN

AWS-based VOD: Building Scalable System for Roligt AB

Perfsys built a serverless VOD platform for Roligt AB with 3 independent apps, delivering 50% faster video load times and seamless scalability. Features: admin panel, video publishing, payment integration, and DRM security.

Tibica: Serverless Latency Optimization

55%

increase in user workflow speed

58%

boost in performance

50%

total cost savings

ServerlessCost OptimizationLatency ReductionEurope

Tibica: Serverless Latency Optimization

Perfsys eliminated Lambda cold start latency for Tibica by replacing Lambda-based GET operations with direct DynamoDB queries via API Gateway — cutting workflow times by 55%, boosting performance by 58%, and halving Lambda costs.

Tibica: AWS Performance Optimization

26%

faster user workflow

22%

performance improvement

20%

total cost savings

ServerlessPerformance OptimizationSaaS

Tibica: AWS Performance Optimization

Perfsys migrated Tibica's Lambda functions from x86 to AWS Graviton2 (arm64), cutting workflow response times by 20% and reducing operational costs — without any changes to application logic or infrastructure.

AWS Digital Signage Solution: Infoplay Case Study

80%

cost reduction (off-season)

3

months to complete

15

AWS services used

Digital SignageMedia & TransportationServerlessSweden

AWS Digital Signage Solution: Infoplay Case Study

Perfsys built a custom serverless CMS on AWS for Infoplay, managing 100+ digital screens across Swedish ferries. Monthly costs dropped 80% off-season and 60% at peak — with no compromise in functionality or content quality.

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