Description

Who we are:

We create a business process reliability service as part of Sber's PaaS platform – Platform V.

Our service, SessionsData (https://platformv.sbertech.ru/products/sessions-data), is a high-performance distributed in-memory cache for session data (shared request context within a session), which helps reduce the load on external services and databases.

The product is widely used in SberBank, both for SberBank Online and in the bank's internal systems. Over 80 million sessions per day in SberBank Online alone.

How we operate:

The product is built on a microservices architecture. Our main microservice, storing data in RAM, is a Java application deployed on VMs (outside a containerized environment). The remaining microservices are packaged in Docker containers and orchestrated using Kubernetes/OpenShift. We develop services using the Spring/Spring Boot framework. Interaction with our service is done via an SDK provided to the end consumer. For inter-service communication, we use Istio Service Mesh, SDKs of other platform services, and OpenAPI specifications. All interactions with external services are secured with TLS/mTLS.

We take unit and integration testing seriously, so we maintain a high code coverage rate. Regular checks are performed using Sonar and static code security analysis tools. Code changes undergo Code Review; constructive criticism and sharing experience/knowledge are encouraged within the team.

The load on the service is constantly growing, so we face new, interesting challenges related to ensuring fault tolerance, optimizing processes, and operations.

Responsibilities

Your tasks:

• decomposition and analysis of tasks
• implementation of new functionality and support of existing functionality
• participation in discussing and making technological decisions for product implementation
• conducting Code Review

Requirements

We expect you to have:

• commercial development experience with Java 11+
• knowledge of Spring Framework 5.* (Core / Web / AOP / Data / Cache), Spring Boot 2.7+
• Java Concurrency, Multithreading
• OpenAPI 3
• JUnit or TestNG, Mockito
• SQL
• experience with PostgreSQL/Oracle
• experience with Docker, Kubernetes/OpenShift
• understanding of REST API design principles
• experience developing high-load web projects
• understanding of Agile development methodology
• experience with development tools: Maven, Git, IDEA.

Will be a plus:

• familiarity with In-Memory Data Grid
• familiarity with Java VisualVM, JProfiler, JMC
• familiarity with Java serialization libraries
• familiarity with DevOps practices and tools (Jenkins)
• experience developing Docker, Kubernetes/OpenShift manifests
• experience developing Jinja templates, working with Ansible
• development and debugging of bash scripts, knowledge of Linux, proficiency in command-line tools
• experience working with and configuring Istio Service Mesh manifests
• understanding of TLS/mTLS connection setup.

Conditions

Working at SberTech means:

• hybrid work format
• annual bonus and yearly salary review
• status as an accredited IT company
• extended private health insurance from day one and preferential insurance for family
• Sber Corporate University, internal educational platform, participation in IT conferences
• 90 days of remote work from any region in Russia
• preferential mortgage at Sber, SberPrime+ subscription, discounts from partners and services of the group of companies.