Sumit Gupta

Software Engineer

Bengaluru, Karnataka, India9 yrs 4 mos experience

Key Highlights

Expert in designing scalable backend solutions.
Proven track record in high-concurrency user management.
Strong leadership in GraphQL and microservices architecture.

Stackforce AI infers this person is a Backend-heavy Fullstack Engineer with expertise in SaaS and high-concurrency systems.

Contact

Skills

Core Skills

GraphqlDistributed SystemsMicroservice ArchitectureJavaMicroservicesGenetic Algorithms

Other Skills

AerospikeAlgorithmsBackend ArchitectureCode ReviewConcurrency ManagementCore JavaDGSData StructuresDatabasesDebuggingDynamoEclipseElasticsearchGitHibernate

About

Anyone can fix a problem or develop a solution but my four years of experience in Java, Spring , Mysql , Mongo DB, Aerospike, Kafka, Data structures and Algorithms has taught me beyond this, Don't just build a solution but Design the BEST solution which is futuristic, Reliable, Handy, Low maintenance, No complexity.

Experience

Oracle

Principal Engineer

Sep 2025 – Present · 6 mos

Atlassian

Engineering

Nov 2023 – Sep 2025 · 1 yr 10 mos · India · Remote

Disney+ hotstar

Staff Software Engineer

Aug 2021 – Nov 2023 · 2 yrs 3 mos · Gurugram, Haryana, India

~ Implemented a managed federated Apollo Gateway,
helping Java teams with GraphQL implementation using
the DGS framework, and managing a small team
showcases your expertise in GraphQL, backend
architecture, and leadership.
~ Worked with Identity Team for delivering features like
Magic Link, Token Enrichment and handled concurrency
of 25 Million Users For WT20 2022.
~ Scaled Identity services to handle 50 million concurrent
users and identifying bottlenecks in the architecture.
Ensured that services can handle heavy loads while
maintaining performance and reliability.
~ Listing the major initiatives or projects the team will
undertake during the quarter. Provide a brief description
of each initiative and its expected outcomes.
~ Defining metrics and key performance indicators (KPIs)
to assess the progress. Set up regular checkpoints to
review performance against goals.

Object-Oriented Programming (OOP)Code ReviewDGSDebuggingDynamoGraphQL+2

Ixigo

Senior Software Engineer

Dec 2020 – Aug 2021 · 8 mos · Gurugram, Haryana, India

Working in Trains Team. Microservice Architecture,
Mostly Java, SpringBoot, MySQL, MongoDB, Kafka, and
Elasticsearch.
~ Developed and implemented a centralized refund
management service to streamline the refund process
and address reporting-related challenges. Successfully
cleared more than 15,000 failed refunds in a single day,
ensuring timely resolution and improving customer
satisfaction.

JavaSpringBootMySQLMongoDBKafkaElasticsearch+1

Times internet

Senior Developer

Apr 2019 – Aug 2020 · 1 yr 4 mos · Noida Area, India

involved in backen API (microservices) development for
high traffic, real time application using spring boot,
aerospike, elasticsearch, mysql and benchmarking 90, 95 percentile of all the APIs.
~ Worked on Project like Gaana Homepage Filters and Gaana Hotshots.