Saurabh Sawant

Dear Hiring Manager,

I’m a technically sound and proficient individual with five years of in Software development and testing. In my recent role as Senior Software Engineer in Atalayan, Inc., I have built and designed efficient microservices from scratch using technologies like Golang, Kubernetes, and AWS services. I wrote modular, decoupled, and scalable containerized applications and helm charts for various applications.

I am well versed in HTTP RESTful Web services and SOAP APIS in Golang. I also have hands-on experience with MongoDB Document Model, Data Modeling, and Design Patterns.

I have also spent nearly three years as Software Engineer for Parallel Wireless. In this role, I have worked on Distributed Systems, Docker, and Kubernetes. I have developed Microservices using intelligent algorithms to handle 2G/3G/4G Neighbors based on Real-Time data. I also worked with databases like MongoDB. I diligently work with my team to provide customers with meaningful software solutions. I am proficient in Linux and Windows development environment configuration.

In the past, I had worked as a QA Engineer, proactively involved in Unit Testing, Integration Testing, and System Testing of our product. I have also tested REST APIs of our Microservices. Through testing, I gradually developed a comprehensive knowledge of our software products from the customer's perspective.

I’m also Cisco Certified Network Professional. I thoroughly understand IP networking principles, addressing, subnetting, routing, switching, and VLANs.

With my extensive background in software engineering of Cloud-based Products, I will be a good fit for this role, and my skills can be utilized for better company growth. My greatest strengths are curiosity, a positive attitude, and adaptability. I want to learn more about this opportunity and would be glad to share insights into my skills.

I look forward to hearing from you soon.

Technical proficiency

Tools, Platforms: Docker, Kubernetes, AWS, Kong API gateway, Jmeter, JWT signatures, Prometheus, Git/GitHub, JIRA, Jenkins, Bitbucket, Testrail, Confluence, Agile, Valgrind, Wireshark, Mongo Compass, Visual Studio code, Junit, POSTMAN, Swagger.

Programming Languages, OS, Database: GO, Python, Linux (CentOS), Windows, MongoDB, MySQL, Ansible, Familiar: JAVA.

Senior Software Engineer | Ataya, Inc. Sep 2022 - Current

• Worked with fiber framework to implement RESTful APIs in Golang.
• Played a key role in designing and building towards an efficient microservice distributed architecture.
• Gathered requirements from the product manager, analyzed and prepared the Software functional specification document.
• Provided technical leadership to junior engineer through coaching and mentorship.
• Designed an App store of third-party applications that can be installed on the Kubernetes cluster using Helm charts. Created Helm charts for various applications and installed these charts with Helm client using the Go Helm Client library.
• Experience working with Golang’s Kubernetes package for performing Kubernetes-related operations such as Scaling pods, Handling Namespaces, Handling Replicas, etc.
• Designed library to perform operations on Amazon S3 Buckets using aws-sdk-go package.
• Implemented a modern Go CLI interface using Golang’s Cobra framework.
• Worked on IAM (Identity and Access Management) service to assign appropriate access to the right users.
• Contributed towards developing a Subscription model flow to handle creating, approving & assigning licenses to clusters.
• Used Go standard library and packages like fiber, mongo-driver, aws-sdk-go, Cobra, go helm client, k8s.io/client-go, etc.
• Executed POCs with internal teams and provided information to influence cross-functional teams.
• Involved in writing Unit Tests and Integration Tests, running tests in CI/CD pipeline and Test-Driven Development (TDD).
• Refactored and migrated code for scalability, optimization, and use of Golang libraries that improved overall efficiency.

Software Engineer | Parallel Wireless, Inc. Jul 2019 - Jul 2022

• Experience in writing the HTTP RESTful Web services and SOAP APIS’s in Golang.
• Rewrote various legacy code from Java to Golang and achieved increase in throughput and reduction in memory usage.
• Implemented Unit-Test CLI as a client in Java to allocate and deallocate IP addresses.
• Handled critical customer escalations and high-performance Scaling bugs.
• Implemented solution by leveraging Concurrency primitives such as parallelism, wait groups, atomicity, mutexes, etc.
• Developed application to handle concurrent data collection and processing with Goroutines and Channels using Golang.
• Used Go standard library packages and external packages like Gorilla Mux, Logrus, Excelize, Gosmi, Mongo-driver, etc.
• Responsible for generating server-side code using open API specifications with Go-Swagger.
• Tested Self-Organizing Networks (SON) features of Neighbors and PCI for 3G and 4G Radio Base Stations (CWS) and HetNet Gateway (HNG). This involved 3GPP specification-based protocols including S1AP, X2AP, TR-069.
• Performed various Test scenarios for Microservice architecture-based Kubernetes Cluster using Apache JMeter tool.
• Created Automation Scripts for SON features - 3G and 4G CWS and HNG. Automated and Stabilized Test Suites.
• Wrote and executed Test plans and Test Cases for functional, integration, performance, and regression testing.
• Implemented Query optimization, Change Stream, Performance tuning, data profiling and Capped Collection in MongoDB.
• Created RPC-based service to communicate between ACS and CPE in a TR-069 environment via SOAP messaging.
• Using GO, developed microservices that use Intelligent algorithms to handle 2G/3G/4G Neighbors based on Real Time data and third-party Cells, respectively.
• Developed scalable microservices to handle and forward Events and Alarms to external servers in the form of SNMP traps.
• Contributed towards development of microservices that handled and processed large Configuration data.
• Analyzed and diagnosed CPU and Memory utilization using Pprof and Valgrind.

Software QA Engineer | Parallel Wireless, Inc. Oct 2017 – Jul 2019

• Created Automation Scripts to do functional and system testing using Python libraries like pyATS, Paramiko etc.

Master of Science, Computer Engineering

University of Massachusetts Lowell, Lowell, MA.