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Oct 2024 - Present
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Sajjan Kumar Email & Phone Number
Tech Lead Backend | Python, Django, Big Data, API, AWS, Event-Driven, Agile | Building High-Performance Systems
at
HashedIn by Deloitte
1 work email found
@ceeri.res.in
LinkedIn matched
✓ Verified May 2026
4 data sources
Profile completeness 100%
Current company
Role
Tech Lead Backend | Python, Django, Big Data, API, AWS, Event-Driven, Agile | Building High-Performance Systems
Location
Gurugram, Haryana, India
Company size
Who is Sajjan Kumar? Overview
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Quick answer
Sajjan Kumar is listed as Tech Lead Backend | Python, Django, Big Data, API, AWS, Event-Driven, Agile | Building High-Performance Systems at HashedIn by Deloitte, a company with 624 employees, based in Gurugram, Haryana, India. AeroLeads shows a work email signal at ceeri.res.in and a matched LinkedIn profile for Sajjan Kumar.
Sajjan Kumar previously worked as SDE III at Hashedin By Deloitte and Backend Tech Lead at Datacultr. Sajjan Kumar holds Bachelor Of Technology (B.Tech.), Electronics And Communication Engineering from Rajasthan Technical University.
Company email context
Email format at HashedIn by Deloitte
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{first}.{last}@ceeri.res.in
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AeroLeads found 1 current-domain work email signal for Sajjan Kumar. Compare company email patterns before reaching out.
Profile bio
About Sajjan Kumar
Seasoned Backend Python Lead | 7.5+ Years | Building Scalable SystemsI am a results-oriented backend development lead with over 7.5 years of experience crafting and maintaining high-performance systems. My expertise lies in leveraging a diverse tech stack, including Python frameworks (Django, FastAPI), Big Data technologies (Kafka, KSQLDB, Elasticsearch), and API development, to design, develop, and deploy scalable solutions on the cloud (AWS, GCP).Key Skills:* Backend Development: Python, Django, FastAPI, REST APIs, Databases (PostgreSQL, MongoDB, Cassandra), Redis, RabbitMQ, Celery, Leek, Sentry* Big Data: Kafka, KSQLDB, Kafka-connect, Elasticsearch, Kibana, Presto/Trino, * DevOps: Git, Docker, Nginx, Grafana, Shell Scripting, Ansible, Github Actions, * Previous Experience: Machine Learning (Supervised Learning, NLP), Flask* Exposure: Apache Nifi, Tornado, Hadoop, Elastic Beat Service, Python Supervisor, ReactJs, Apache Superset, Dashboarding and Monitoring Tool, Serverless Computing* Continuous Learning: Exploring Kubernetes (K8s)Passionate about:* Designing and building innovative backend solutions* Streamlining workflows and ensuring optimal performanceFavorite Editor: Vim, VS Code
Listed skills include Html, Microsoft Office, Management, Microsoft Excel, and 15 others.
Current workplace
Sajjan Kumar's current company
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Hashedin By Deloitte
7 roles
Sajjan Kumar work experience
A career timeline built from the work history available for this profile.
Backend Tech Lead
* Develop and maintain delivery plans, including scope, objectives, timelines, and resource allocation.* Coordinate with cross-functional teams to ensure alignment with delivery goals.* Own the technical architecture, design, and delivery of solutions.* Code reviews, Technical discussion with the team, feedback, JIRA, Documentation review
Apr 2023 - Oct 2024
Data Team - Lead
* Kafka Pipeline to process around 2 million events per day in near real-time and batch processing.* Reporting Infra setup (Emails, Slack alerts, Dashboards)
Oct 2021 - Apr 2023
Senior Associate Technology
* Build interface-level components using Python, Django, REST APIs, and Supervisor* Maintaining and bug fixes of legacy application* ElasticSearch setup and uses Elasticsearch APIs for reporting purposes. ElasticSearch indexes hold around 220 million documents and counting.
Oct 2019 - Oct 2021
Software Developer
Managing and Improving:--> 1. The Text De-duplication using the one-hot encoding and word vectors, paragraph embedding. 2. The NLP tasks such as NER, and text classification. 3. The Machine Learning pipeline of product. 4. Automated data extraction using web scraping from an external source.
Apr 2017 - Jun 2019
Social Media Associate
Jul 2016 - Aug 2016
Trainee
May 2015 - Jun 2015
Team & coworkers
Colleagues at HashedIn by Deloitte
Other employees you can reach at hashedin.com. View company contacts for 624 employees →
HV
Harshit Varshney
Colleague at Hashedin By DeloitteNoida, Uttar Pradesh, India, India
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PK
Pritam Kumar Mandal
Colleague at Hashedin By DeloitteBengaluru, Karnataka, India, India
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MS
Mahaveer Singh
Colleague at Hashedin By DeloitteBengaluru, Karnataka, India, India
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AJ
Anurag Jain
Colleague at Hashedin By DeloitteUttar Pradesh, India, India
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AJ
Anushka Jain
Colleague at Hashedin By DeloitteJaipur, Rajasthan, India, India
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SG
Shristi Gupta
Colleague at Hashedin By DeloitteBengaluru, Karnataka, India, India
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SP
Suraj Prakash Behera
Colleague at Hashedin By DeloitteBengaluru, Karnataka, India, India
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SG
Shrey Gupta
Colleague at Hashedin By DeloitteGurugram, Haryana, India, India
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NS
Nandeesh Shankarappa
Colleague at Hashedin By DeloitteBengaluru, Karnataka, India, India
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HK
Heet Kumar Kothadiya
Colleague at Hashedin By DeloitteJunagadh City, Gujarat, India, India
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Harshit Varshney
Colleague at Hashedin By DeloitteNoida, Uttar Pradesh, India, India
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PK
Pritam Kumar Mandal
Colleague at Hashedin By DeloitteBengaluru, Karnataka, India, India
View →
MS
Mahaveer Singh
Colleague at Hashedin By DeloitteBengaluru, Karnataka, India, India
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AJ
Anurag Jain
Colleague at Hashedin By DeloitteUttar Pradesh, India, India
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AJ
Anushka Jain
Colleague at Hashedin By DeloitteJaipur, Rajasthan, India, India
View →
SG
Shristi Gupta
Colleague at Hashedin By DeloitteBengaluru, Karnataka, India, India
View →
SP
Suraj Prakash Behera
Colleague at Hashedin By DeloitteBengaluru, Karnataka, India, India
View →
SG
Shrey Gupta
Colleague at Hashedin By DeloitteGurugram, Haryana, India, India
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NS
Nandeesh Shankarappa
Colleague at Hashedin By DeloitteBengaluru, Karnataka, India, India
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HK
Heet Kumar Kothadiya
Colleague at Hashedin By DeloitteJunagadh City, Gujarat, India, India
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1 education record
Sajjan Kumar education
-
Rajasthan Technical University
FAQ
Frequently asked questions about Sajjan Kumar
Quick answers generated from the profile data available on this page.
What company does Sajjan Kumar work for?
Sajjan Kumar works for HashedIn by Deloitte.
What is Sajjan Kumar's role at HashedIn by Deloitte?
Sajjan Kumar is listed as Tech Lead Backend | Python, Django, Big Data, API, AWS, Event-Driven, Agile | Building High-Performance Systems at HashedIn by Deloitte.
What is Sajjan Kumar's email address?
AeroLeads has found 1 work email signal at @ceeri.res.in for Sajjan Kumar at HashedIn by Deloitte.
Where is Sajjan Kumar based?
Sajjan Kumar is based in Gurugram, Haryana, India while working with HashedIn by Deloitte.
What companies has Sajjan Kumar worked for?
Sajjan Kumar has worked for Hashedin By Deloitte, Datacultr, Contify, Bluecube Network, and Csir-Ceeri.
Who are Sajjan Kumar's colleagues at HashedIn by Deloitte?
Sajjan Kumar's colleagues at HashedIn by Deloitte include Harshit Varshney, Pritam Kumar Mandal, Mahaveer Singh, Anurag Jain, and Anushka Jain.
How can I contact Sajjan Kumar?
You can use AeroLeads to view verified contact signals for Sajjan Kumar at HashedIn by Deloitte, including work email, phone, and LinkedIn data when available.
What schools did Sajjan Kumar attend?
Sajjan Kumar holds Bachelor Of Technology (B.Tech.), Electronics And Communication Engineering from Rajasthan Technical University.
What skills is Sajjan Kumar known for?
Sajjan Kumar is listed with skills including Html, Microsoft Office, Management, Microsoft Excel, Microsoft Word, Sql, Powerpoint, and Python.
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