Position: NodeJS Developer with AWS Lambda
Company: Grid Dynamics
Experience required: 5y
English level: upper

**Description**
We work primarily with big enterprise companies, helping them to replatform their client-facing web applications to the modern technological stack, or build web applications for internal use. In most cases we work with modern frameworks and tools, like Angular or ReactJS. We also use NodeJS to build back-end for the front-end. In addition, we do performance optimization and architecture assessment. Solutions we use are based on strong engineering practices, and our company follows the best DevOps and automation practices.

You can get a unique experience working with a complex customer’s infrastructure and dealing with a high number of integrations with external systems, as these require strong architectural design skills.

If you are excited about all aspects of modern engineering - writing great code, creating architectures, designing components, interacting with clients, and delivering the working system to production - then you are the kind of person we are looking for. If you enjoy freedom and responsibility, creative thinking, leading, and mentoring others, come join our team of world-class developers, QA engineers, DevOps engineers, architects, and managers.

**Responsibilities:**
Develop clean, modular, and reusable code
Innovate and enhance on-site functionality
Communicate effectively across desks, teams, and departments
Participate in agile development processes in SDLC, including: sprint planning, iterative development, estimations, and design sessions
Provide technical expertise for microservices design and implementation in AWS
Design and develop new and enhance existing backend API services using Node.js
Participate in design and code reviews, and project planning.
Work with multiple SQL and NoSQL databases.
Develop new unit and integration tests.
Work with source code control systems.
Monitor the health, performance, availability of AWS Lambda microservices
Bring industry best practices in terms of technology and process
 
**Requirements:**
Deep understanding of JavaScript Core
Upper-Intermediate English or higher
Good communication skills 
Good problem-solving skills, initiative, and intellectual curiosity
Have experience of building at least one project from scratch
Experience with rolling out at least one project to production
Experience with developing unit tests on at least one project with not less than 30% coverage
Excellent problem-solving skills, initiative, and intellectual curiosity
Leadership skills
Understanding of Microservices Architecture and design.
Understanding of integrating Databases with Serverless Microservices
Understanding of ETL (Extract Transform and Load) using AWS S3 and Lambda
Experience of Amazon Serverless Services (AWS Lambda, SNS, SQS, DynamoDB Streams, API Gateway)
Understanding of Asynchronous Processing through Messaging and Event Driven Architecture (SQS and Kinesis).
Experience with Backend Data Processing Logic and Schedular (Cloud Watch, AWS Step Functions)
Strong knowledge of Node.js and TypeScript
Strong knowledge of object-oriented programming and design patterns
Experience of Apollo GraphQL Server
Experience of Serverless framework
Experience of unit and integration tests development with Jest/Jasmine
Experience with Backend SQL Databases (MySQL, Amazon Aurora)
Experience with Backend NoSQL Databases (DynamoDB)
Experience with SQL queries performance troubleshooting.
Experience with Application Performance Monitoring (CloudWatch metrics, New Relic).
Experience with agile development methodology
Experience with Source Control (Git on CodeCommit)
 
**Would be a plus:**
Proven ability to oversee a team of 3+ developers
At least six months experience as a Tech Lead or Senior Engineer on the project

**We offer:**
Competitive salary
Work on bleeding-edge projects on a team of experienced and motivated engineers
Flexible working hours
Health insurance, benefits package, company-sponsored conferences, vacations
Well-equipped office located in the center of the city

**About us:**
Grid Dynamics is an engineering services company known for transformative, mission-critical cloud solutions for the retail, finance, and technology sectors. We have architected some of the busiest e-commerce services on the Internet, and have never had an outage during the peak season. Founded in 2006 and headquartered in San Ramon, California with offices throughout the US and Eastern Europe, we focus on big data analytics, scalable omnichannel services, DevOps, and cloud enablement.