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I am a Senior Backend Engineer with ~20 years of experience designing, building, and maintaining complex server-side systems. My focus is on Java-based backend development, including Spring Boot, concurrency, distributed systems, and legacy enterprise applications. Over the years I have worked on a wide range of systems, from long-running monoliths to modern service-oriented architectures. A significant part of my experience comes from working with large legacy systems (including Grails-based applications) where stability, performance, and incremental modernization were critical. I specialize in: - Backend system design and architecture - Performance optimisation and concurrency - Legacy system maintenance and modernization - API design and backend integration - Database-driven enterprise applications I am especially interested in challenging backend problems where reliability, correctness, and long-term maintainability matter. I have extensive experience working on long-term client engagements and take responsibility for delivering stable and maintainable solutions. If you are looking for a senior backend engineer who understands both legacy systems and modern Java ecosystems, feel free to reach out.

With extensive experience in software engineering, cloud reliability, and distributed systems, I specialize in designing and operating highly available, fault-tolerant platforms on AWS that meet strict reliability and customer experience requirements. ➡ AWS Special Projects (top 0.1% of AWS specialists worldwide) ➡ 8+ years of professional experience in reliability-focused roles ➡ Linux expert ➡ Managed and still manage multinational companies’ AWS accounts with reliability and security as primary goals ➡ Expertise in Cloud Infrastructure, Site Reliability Engineering, and Web Services ➡ Strong background in Aviation Industry Software and safety‑critical systems As a Software Reliability Engineer, I focus on: Defining and tracking SLOs, SLIs, and error budgets to balance reliability with feature delivery Implementing observability (metrics, logs, traces) for fast incident detection and root-cause analysis Designing for high availability, scalability, and graceful degradation under failure Building automation for deployments, rollbacks, self-healing, and capacity management Conducting incident response, postmortems, and driving long-term reliability improvements AWS & Reliability Expertise: ✔ IAM: Design least-privilege access models for users and services (IAM roles, policies) to secure production environments and reduce blast radius. ✔ EC2: Architect reliable compute layers with Auto Scaling Groups, load balancers, and multi-AZ deployments. Use private networking, Spot and Reserved Instances for cost‑efficient and resilient capacity planning. ✔ S3: Configure bucket policies, versioning, lifecycle rules, and cross-region replication to ensure durability, availability, and cost-optimized storage strategies. ✔ VPC: Design secure, isolated network topologies with public/private subnets, VPC peering (cross-account and cross-region), and Site-to-Site VPNs to ensure resilient hybrid connectivity. ✔ RDS: Deploy highly available databases (MySQL/Aurora) in private subnets with automated backups, Multi-AZ setups, performance tuning, and Reserved Instances for predictable, reliable data layers. ✔ Certificate Manager: Manage multi-domain and wildcard SSL certificates to secure web and API endpoints, enforcing TLS best practices and minimizing downtime during certificate renewals. ✔ Route53: Implement reliable DNS architectures, health checks, and routing policies (weighted, latency-based, failover) to support zero-downtime deployments and global availability. ✔ CloudFront: Configure secure, low-latency CDNs for web applications and APIs, leveraging caching and origin failover strategies to improve resilience and performance. ✔ ECS (Elastic Container Service): Deploy and scale containerized workloads with robust task definitions, rolling deployments, health checks, and auto-scaling to ensure reliable microservices operations. ✔ ECR (Elastic Container Registry): Manage Docker images with scanning, lifecycle policies, and secure access controls, integrated with CI/CD pipelines for consistent and reliable releases. ✔ CloudWatch: Build end-to-end observability: custom metrics, alarms, dashboards, anomaly detection, and log aggregation to support proactive reliability management and fast incident response. ✔ Directory Service: Integrate with on-premises Active Directory for secure, centralized identity and access management in hybrid environments, enabling consistent controls across systems. ✔ CloudTrail: Provide comprehensive auditing and traceability of API activity, integrating with monitoring tools for security and compliance-driven reliability. ✔ API Gateway: Design and operate reliable API layers (REST & WebSocket) with throttling, caching, authentication, and robust integration patterns to backend services (Lambda, ECS, etc.). ✔ SNS (Simple Notification Service): Implement robust pub/sub messaging patterns for event-driven architectures, integrating with other AWS services to support decoupled and resilient systems. I have 8+ years of work experience in software engineering, cloud computing, and web development, with a strong focus on reliability, observability, and high availability for mission-critical systems in the aviation industry.

Highly skilled and accomplished Senior Java Developer with more than 6 years of experience and a proven track record of delivering high-quality software solutions. Committed to staying up-to-date with the latest technologies and frameworks. Seeking a challenging position to contribute my expertise in Java development and frameworks to drive innovation and success for a leading organization. Skills: Programming Languages: Java, Kotlin, SQL Java Frameworks: Spring (Boot, Integration, Security, Batch, MVC, Data, WebFlux), Hibernate Tools: Lombok, JOOQ, Mapstruct, ELK Web Development: HTML5, CSS3, TypeScript, jQuery, Swagger Database Technologies: Oracle, PostgreSQL, Flyway, Liquibase Version Control Systems: Git Agile Methodologies: Scrum, Kanban Testing: JUnit, Mockito, Cucumber, Selenium, SonarQube, DBUnit IDEs: IntelliJ IDEA CI/CD: Jenkins, GitLab, Bitbucket Containers/Orchestration: K8s, Docker, OpenShift Messaging: Kafka, RabbitMQ, Solace Strong problem-solving and analytical skills Excellent teamwork and collaboration abilities. Mentorship and leadership experience. Dedication to the result, accountability and adaptiveness. Certifications: Red Hat Certified Specialist in OpenShift Application Development

About me: Experienced in electronics and software developing. Skilled in circuit design, PCB development, FPGA. Proficient in multiple programming languages like Assembler, C, C++, C#, Java, js, Verilog, Bash. Plus, last 4 years an experience of working with AUTOSAR project. Many years of experience to develop and support cross-platform desktop SW under Windows/Linux/MacOS with using Java Spring, Groovy, MSVC, .NET (C#), Qt and bash scripting. Experience in DevOps and logging area: Amazon AWS, Ansible, Packer, Terraform, Concourse, ELK stack and oth. Team Lead experience - capable of managing and guiding developer teams. Worked in teams on projects of varying complexity in companies like Comcast (US) and Harman, Continental (Germany). Friendly, responsible, and punctual, with a collaborative mindset.

As an Expert Engineer with over 8 years of experience, I specialize in Java and Kotlin development within the Spring and Spring Boot frameworks. Here's a breakdown of my skills: * Java + Kotlin software development: 4+ years * Spring framework: 5+ years * Cloud solution architecture with Spring: 2.5+ years * Diverse database expertise: SQL (e.g., PostgreSQL) and NoSQL (e.g., MongoDB, Elasticsearch, Dgraph) * Proficiency in messaging systems: Kafka, RabbitMQ * Strong integration skills with tools like Prometheus, Grafana, Jenkins, and Docker * Non-production development experience in C/C++: 4+ years, C# development: 1+ year * Fast learner with a passion for exploring innovative technologies * Architectural design tailored to project requirements * Analytical skills for solution evaluation and enhancement. With a proven track record of delivering high-quality software solutions, I thrive in dynamic environments where innovation and continuous improvement are encouraged.

🚀 Delivering Tailored Solutions with Precision & Expertise For over 4 years, I’ve been developing, deploying, and automating end-to-end applications across frontend, backend, cloud, and DevOps. I handle everything from development to cloud deployment, whether it’s Angular, Spring Boot, Node.js, or AWS. I’ve provided consultancy to enterprise-level clients in sectors like finance and insurance, delivering projects that work seamlessly. Why Hire Me? ✨ Sector Expertise: Deep insight into finance and insurance, able to tackle specific challenges and deliver tailored solutions. ✨ Commitment to Quality: Recognized for enhancing systems with a focus on reliability, accuracy, and robust performance. ✨ Tech Versatility: Skilled in both front-end and back-end development, capable of seeing projects from concept through to production. Core Competencies: 🚀Application Modernization: Skilled in transforming outdated systems with modern technology to improve business operations. 🚀Project Leadership: Proven ability in guiding projects and teams towards achieving software development goals efficiently. 🚀Technical Collaboration: Effective at working with diverse teams, ensuring software solutions are delivered seamlessly and meet quality standards. Technical Skills: ✅ Frontend: Proficient in Angular for dynamic, user-friendly interfaces. ✅ Backend: Experienced in Java, Spring Boot, and Node.js for robust server-side solutions. ✅ Database Management: Skilled in SQL, NoSQL, MongoDB, and Oracle PL/SQL for comprehensive data handling. ✅ Cloud and DevOps: Expert in using AWS, Docker, and Kubernetes to ensure scalable, reliable application deployments. Let's Connect! If you're looking for a comprehensive approach where strategic consultation, problem-solving, and technical expertise merge for outstanding results I'd love to collaborate with you!