Abhishek Sarkar

Senior Software Engineer

Kolkata, West Bengal, India8 yrs 6 mos experience

Most Likely To SwitchAI ML Practitioner

Key Highlights

8+ years of experience in backend development.
Expert in building scalable, cloud-native systems.
Proficient in Java, Spring Boot, and AWS.

Stackforce AI infers this person is a Backend Developer specializing in Fintech and Retail solutions.

Contact

abhishek_sarkar@epam.com LinkedIn

Skills

Core Skills

Amazon Web Services (aws)MicroservicesProcess AutomationJavaInternet Of Things (iot)

Other Skills

AWS CloudFormationAWS LambdaAWS SQSActiveMQAmazon CloudWatchAmazon DynamodbAmazon EC2Amazon ECSAmazon S3Amazon SQSAnthropic ClaudeArduinoChatGPTCloud ComputingCommunication

About

Backend developer with 8+ years of experience in building scalable, cloud-native systems across finance, business information & media, and retail domains. I work extensively with Java, Spring Boot, AWS to design distributed microservices, implement event-driven architectures, and improve reliability and automation in backend workflows. Detail-oriented, self-motivated, and solution-focused, I enjoy solving complex problems, collaborating across teams, and exploring how AI tools and cloud technologies can drive smarter backend development. Having 4 years on Open-Source. • Passionate in building utility applications for convenience of work, automating processes on Python, Java, PowerShell or other scripting languages. • Domain experience : Capital Markets Broker back-office solution, wealth management platforms, gift-cards (retail, payments) solution, Business information & media. Github: https://github.com/abhisheksarkar30

Experience

8 yrs 6 mos

Total Experience

4 yrs 3 mos

Average Tenure

4 yrs 9 mos

Current Experience

Epam anywhere

2 roles

Senior Software Engineer A3

Promoted

Aug 2022 – Present · 3 yrs 10 mos · Hyderabad, Telangana, India · Remote

Worked on developing wealth management platform :
Integrated AWS SQS to an existing AWS lambda to push messages to other lambda, including in CloudFormation template.
Introduced new Dagger injector to component interface
Replaced existing Internal REST calls to AWS LambaToLamba call reducing traffic to Layer7 (JWT retrieval) and API Gateway
Worked on developing gift cards platform for various reknowned tenants/partners:
Single handedly implemented Spring Cloud Config server for the B2C side and migrated around 10-12 microservices to work as config client to achieve the goal to dynamically refresh/update configuration of the microservices without requiring to restart them
Implemented http basic auth(Spring security) for the above refresh endpoints and resolved conflicts like Jasypt lib known issue with config refresh, redefining singleton beans referring to dynamic configs, etc

SonarAmazon S3Amazon Web Services (AWS)AWS CloudFormationJenkinsCommunication+32

Software Engineer A2

Aug 2021 – Jul 2022 · 11 mos · Hyderabad, Telangana, India · Remote

Developing wealth management platform:
Introduced AWS Lambda/ECS to Lambda invocations instead of existing HTTP REST calls, to reduce traffic on Layer7Auth Service which is required for REST.
Exposed Query endpoint as part of CQRS pattern for existing JWT cache implementation to be used by other microservices.

SonarAmazon S3Amazon Web Services (AWS)Spring FrameworkSpring BootAWS CloudFormation+17

Nomura research institute financial technologies india pvt. ltd.

4 roles

Software Engineer II

Apr 2021 – Aug 2021 · 4 mos

Built a stable scheduler environment using Job2Do & cronjobs for all time based batches and services to be initiated for the production.
Built a robust monitoring environment for track and alerting all jobs getting executed for the production.

ZabbixActiveMQAmazon EC2Amazon S3Spring FrameworkOracle SQL+12

Software Engineer I

Promoted

Apr 2020 – Mar 2021 · 11 mos

Built a robust Rule-based Service engine from scratch working on multi-thread to link records received from two external bodies and transmission of SWIFT messages to client. Linking and transmission is done based on the single consolidated rule design having multiple rule identifiers and attributes and assured graceful shutdown of the same. I was awarded as “Shining star Award for Q4 2019-20” for this task.
Built a utility tool to improve performance, of bulk upload messages of various formats, from 1,000 messages/hour to 50,000 messages/hour.

ZabbixActiveMQSpring FrameworkOracle SQLSpring MVCProcess Automation+9

Associate Software Engineer II

Apr 2019 – Mar 2020 · 11 mos

Designed custom framework for Java Preference based on Decorator Pattern to incorporate custom logic to be used as a wrapper along on top of original implementation from Java jdk.
Built a custom logging agent on Java instrumentation for performance analysis and tuning.
Built an in-house tool to work as a web interface to utilize a jar based validator for SWIFT messages.

ActiveMQOracle SQLSpring MVCProcess AutomationPL/SQLJasper Reports+6

Associate Software Engineer I

Aug 2017 – Mar 2019 · 1 yr 7 mos

• Designed and built an in-house application based on Selenium for automated timesheet application fillup, fetching information from Attendance Management System of the company, contributed officially out of own interest.

ActiveMQOracle SQLSpring MVCProcess AutomationPL/SQLJasper Reports+6

Fiacre telematics pvt ltd

IoT Developer

Mar 2017 – Jul 2017 · 4 mos · Kolkata, West Bengal, India

• Designed and built an IoT based telemetry solution for the company

Internet of Things (IoT)Arduino

Nomura research institute financial technologies india pvt. ltd.

Intern

Jan 2017 – Feb 2017 · 1 mo · Salt Lake, Kolkata

An application was designed and developed titled Test Case Generator System for generating all possible test cases for a given screen of another application.
It would reduce the job of a tester where he/she would not have to guess the possible number of test cases and validate accordingly for a given application.
The application was developed based on Spring MVC architecture and modern front end tools.

Java

Tata consultancy services

Summer Intern

Jun 2016 – Aug 2016 · 2 mos · Gitanjali Park, New Town

Under the project of J&J at TCS EIS Kolkata
Summer Intern at Engineering & Industrial Services - TCS, under the project of J&J, for the period of two months.
An algorithm was developed for an optimized and efficient handling of huge amount of employee data.
Implemented various levels of view restrictions for different categories of employees(Employees, Admin and Team Lead).
It also provided a solution to make teams for a project and book a team-mate for a future project.
The application is developed using Java EE.

J2EE Web ServicesJava