Freelancer profile translated to English.
Back to original languageAbout Aleksei
As an AWS Certified Solutions Architect Professional with over 20 years of experience in software development (Java/Spring Stack), I view cloud infrastructures through the lens of a software engineer. My focus is not just on 'hosting,' but on creating high-performing, cloud-native architectures that are closely integrated with the application code.
I leverage my profound programming experience to realize software-defined cloud infrastructure. Using AWS CDK and TypeScript, I develop infrastructures that are as testable, scalable, and maintainable as modern application code.
My core competencies:
- Architecture Modernization: Transforming monolithic Java systems into scalable AWS microservices (Serverless, EKS, Fargate).
- Advanced IaC: Full-stack Infrastructure as Code with AWS CDK, Terraform, and CloudFormation.
- FinOps & Performance: In-depth analysis of workloads (requests/limits) for massive cloud cost reduction.
- Security & Compliance: IAM, OAuth2, and Keycloak integrations in regulated environments (banking experience).
- Data & AI: Building automated data pipelines (Airflow/Python) and ML infrastructures.
- I offer a hands-on mentality: I design strategic roadmaps at the C-level and personally implement the CI/CD pipelines and cloud components in code the very next day.
German
Fluent
English
Conversational
Russian
Native or bilingual
Can work on-site
Bad Kreuznach (up to 50km)
Experience
- VKB BAYERNSENIOR DEVOPS / SOFTWARE ENGINEERFebruary 2024 - August 2025 (1 year and 6 months)Modernization and scaling of an insurance system for real estate valuation, and development of a central data platform.Results & Responsibilities:- Cloud-Native Architecture: Conception and implementation of scalable microservices (Java 17, Spring Boot) in a hybrid cloud environment (OpenShift/on-premises Cloud/AWS).- Infrastructure as Code & DevOps: Design and standardization of Jenkins pipelines that reduced deployment time by 3X. Ensuring container orchestration using Kubernetes/OpenShift.- Security Architecture: Implementation of a robust IAM system based on Keycloak (OAuth2/JWT) to secure critical insurance interfaces and comply with regulations.- Observability & Reliability: Setup of comprehensive monitoring and tracing with Dynatrace and Splunk to increase system availability and performance analysis.- Data Engineering: Development of automated ETL pipelines (Python, Airflow, Pandas) for consolidating data from heterogeneous internal systems.- Architecture Governance: Active participation in shaping microservices design patterns, data flow architectures, and conducting technical reviews within the SAFe framework.Tech Stack: AWS, OpenShift, Kubernetes, Terraform (Cloud Infra), Docker, Jenkins, Keycloak (IAM), Java 17, Spring Boot, Python (Airflow), Kafka, Splunk, Dynatrace. Tools: BitBucket, JFrog Nexus, SonarQube, Jira, Confluence.
- START-UP PROJECT FÜR CRYPROANALYZELEAD CLOUD ARCHITECT (AWS)BANKING AND INSURANCEFebruary 2023 - December 2025 (2 years and 10 months)Berlin, GermanyChallenge: Conception and construction of a platform for real-time processing of massive data streams while optimizing operating costs.My Role & Responsibilities: As Lead Cloud Architect, I was responsible for the strategic reorientation from a monolithic structure to a modern, cloud-native platform. My focus was on the synergy between software engineering and automated infrastructure.Results & Technical Implementation:Cloud Architecture & FinOps (ROI Focus):
- Serverless-First: Design of a highly available architecture (AWS Lambda, DynamoDB, S3). Result: 40% reduction in monthly infrastructure costs.
- Advanced IaC: 100% environment automation. Migration from legacy scripts to AWS CDK (TypeScript) and Terraform, which tripled deployment speed.
- Cost Optimization: Implementation of Spot Instance strategies and automated right-sizing.
Software Engineering & Streaming:- Backend: Development of robust microservices with Spring Boot (Java) and Kafka for lossless real-time data stream processing.
- Data Science & AI: Building automated ML pipelines (Airflow, Scikit-learn) for market analysis. Integration of MLflow for model versioning.
Security & Compliance:- Securing API endpoints and implementing granular access concepts via AWS IAM and OAuth2.
Tech Stack: AWS (Lambda, S3, IAM, CDK), Terraform, Java (Spring Boot), Python (Pandas, Scikit-learn, Airflow), Kafka, Docker, GitLab CI.Conclusion: Through the consistent use of Infrastructure as Code (CDK) and serverless components, a platform was created that combines technological excellence with economic efficiency. - IBMSENIOR JAVA FULL-STACK DEVELOPERMay 2022 - February 2023 (9 months)Böblingen, BW, GermanyFurther development of the IBM server driver update management system for the company's global customers.Results• - Developed and integrated new REST interfaces and backend modules (Spring Boot 5, JPA, Cloudant DB).• - Refactored existing code, automated tests, and significantly increased stability.• - Created technical documentation and architectural decisions in close coordination with the team.• - Measurably improved process quality and test coverage in agile sprints (Scrum).Tech Stack: Spring Boot 5, Gradle, JUnit, Mockito, JMeter, Hibernate/JPA, Cloudant DB, JSON, YAML, Linux (Ubuntu/RedHat). Tools: IntelliJ, Azure Pipeline, GitHub, Jira, Confluence, JFrog, Nexus, SonarQube.
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Education
- Military Technical UniversityMoscow1999Physik, Chemie, mathematische Modellierung
Certifications
- AWS Certified Solutions Architect – ProfessionalAWS2026