Staff Performance Engineer – SDET Job Vacancy in Visa Bengaluru, Karnataka – Updated today

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Full Details :
Company Name : Visa
Location : Bengaluru, Karnataka
Position :

Job Description : Company Description
Visa is a world leader in digital payments, facilitating more than 215 billion payments transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories each year. Our mission is to connect the world through the most innovative, convenient, reliable and secure payments network, enabling individuals, businesses and economies to thrive.
When you join Visa, you join a culture of purpose and belonging – where your growth is priority, your identity is embraced, and the work you do matters. We believe that economies that include everyone everywhere, uplift everyone everywhere. Your work will have a direct impact on billions of people around the world – helping unlock financial access to enable the future of money movement.
Join Visa: A Network Working for Everyone.

Job Description
Visa is looking for Staff Performance Engineers, who will help build Open VisaNet, Visa Next generation payment processing platform developed on Open Systems, that would fuel growth in electronic payments globally and drive financial inclusion in many parts of the world.

Open VisaNet, is the Next Generation VisaNet, will push the envelope of building highly scalable, secure, cost effective and distributed application on commodity hardware using best-in-class technology components. It is one of Visa Key initiatives that will help Visa support in-country processing solutions and provide Visa an opportunity to move away from Proprietary Mainframe type systems.
Open VisaNet is built as a modern distributed architecture based on micro services with goals of five 9s availability, fault tolerance, horizontal scalability and real time latency for largest scale transaction processing. It leverages state of the art Open Software technologies to achieve these goals on commodity hardware, such as Golang, Scala, Apache Kafka, Apache Spark, Docker, Kubernetes, Aerospike, Elasticsearch etc. and involves collaboration with exceptional group of software development and test engineers, systems performance engineers, security specialists, DevOps engineers, payment experts, infrastructure, and solution architects.

Essential Functions :

Accountable for creating application and infrastructure performance plans/models for a highly scalable, low-latency, highly available and high-throughput payment processing systemUnderstand and own component level performance engineering activities, including code and data flow review.Design and contribute to performance and resiliency testing and tuning of distributed components.Coordinate with the Dev / QE / Support / PM teams to review and document requirements.Evaluate, develop, and execute load test tools to simulate workload limits of Visa’s most critical payment applicationsDesign and conduct tests with complex workloads and data shapes to expose potential bottlenecks and failure points.Perform root cause analysis for the issues identified.Analyze metrics and trends to glean opportunities for performance improvements of the application.Experiment with ways to eliminate issues and present corrective actions, conduct session with developers and architects on the corrections/techniques suggested.Oversee system performance lifecycle and identify key metrics for performance improvements.Generate periodic performance engineering reports for architects, developers, and PMs to review.Conduct technical presentations to enable teams on how to improve system and application performance.Innovate solutions to improve performance engineering effectiveness.Design and contribute to performance tuning, scalability, reliability, and high availability of fault-tolerant distributed componentsEnsuring proper documentation and internal publishing of design tradeoffs, code best practices and lessons learnedSupport in triaging and troubleshooting of highly distributed services in production environmentDesign and develop Performance Engineering aide like profiles, traces, or any observability framework.Design and develop Performance best practices and influence non-functional requirements at early stagesWork closely with application development teams to provide technical direction to improve application performance
Mandatory Skillset :

Deep Understanding of Performance KPIs and their tradeoffs and patternsPerformance Modeling capability based on Performance Test Numbers for a predefined application Non-Functional RequirementUnderstanding of Microservices/CGROUP and Namespaces in LinuxDeep Understanding of Linux Memory managementDeep Understanding of IO Subsystem (IO subsystem layers, Type of IOs, Caching, Filesystems, RAID)Understanding of Compute subsystem with in-depth knowledge of scheduling of process, thread and goroutines/LWTUnderstanding of process state, context switches, system callsUnderstanding of NW layers – protocols, flow control and congestion controlSome knowledge on Data CenterKnowledge of at least one language – GoLang, Python or Java. Should be able to code independentlyAbility to build Cost Profile for Application based on test results [CPU, Memory, IO, and Network]Ability to profile CPU and Memory consumptions or raw dumps. Familiarity with traces, thread dumps, debug logCreate performance test strategy and test casesDesign Chaos test case scenarios and formulate test strategy by identifying failure points

Qualifications

Minimum of 8 years hands-on experience in Performance Engineering roleEffective verbal and written communication skillsBS or MS in Computer Science or related degree from recognized universityPrevious experience with financial services or payments processing domain is a big plus
Additional Information

Visa has adopted a COVID-19 vaccination policy. As a condition of employment, all employees based in the country where this job is located are required to be fully vaccinated for COVID-19, unless a reasonable accommodation is approved or as otherwise required by law.

This post is listed Under  Software Development
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