SREERAJ KRISHNAN
Bangalore,Karnataka
Summary
Highly effective software developer offering wealth of more than 16 years of expertise.
Enthused Software engineer with competencies in multiple programming languages C++/Python/Node JS/AWK/Scripting , web/mobile development, distributed systems using concepts such as caching, scalability, availability, writing extensible/modular code, problem solving, data structures, system design.
Developed REST asynchronous API framework which has take billions of hits in traffic.
Valuable team player with personable and dedicated nature.
Skilled in directing development with creative and performance-oriented approach
Overview
15
15
years of professional experience
4
4
years of post-secondary education
5
5
Languages
Work History
Engineer - Infra
Instabase
Bangalore, Karnataka
02.2022 - Current
- Participated in formal internal design reviews of proposed products and components.
- Wrote, reviewed and edited technical document in accordance with template requirements.
- Designed,built vulnerability framework integration with Aquasec from scratch for company.
- Build automated tracker in JIRA for vulnerability framework with Aquasec scanner results
- Cleaned up code repository image references and moved to building services using Jenkins groovy
Engineer - IC
KYT - Know Your Travel
Bangalore, Karnataka
02.2020 - 01.2022
- - Build order/payments module from scratch using Razorpay integration
- - Build and deploy back-end services/tools/frameworks from scratch
- - Acquired DIY.org(1m revenue annually) with no engg team, managed data-center in AWS single-handedly. Achieved Maintenance/Improvements/optimizations
- - Serverless AWS frameworks, Nest.js , Typeorm, Caching
Lead Engineer
Samsung India
Chennai, TN
07.2019 - 09.2019
- End to end ownership of Samsung Shop mobile app in Google Playstore and Chat-bot.
- Defined working agreement for dev/QA/PO and took corrective actions.
- Fix security gaps for REST API's, add audit trails for API's called which has customer impact.
- Correct Dev environment to enable Dev testing before hand over to QA.
SDE 3
PayPal India Pvt. Ltd
Chennai, TN
01.2011 - 06.2019
- Built indexing and caching for dynamic search from back-end for merchant category code titles & codes.
- End to end development of compliance program for customers for 110+ countries with KYC/CIP/EDD levels with collection of Proof of Name/DOB, business details etc.
- Designed Business Stakeholder Framework to show/collect/update various stakeholder with variable information for 110+ countries.
- Account manager flag removal and hidden address removal from millions of accounts
- Developed RestServiceCaller framework which is taking billions of hits in traffic.
- Design and Implement 50+ PP service integrations in our back-end tool
- Convert blocking network calls to non-blocking to reduce AHT from 9 seconds to 4 seconds for account home page in admin tools.
- Wrote a Code Generator to Convert SDL to API Using Python & Shell Script in < 24 Hrs.
Engineer
EFI India Pvt. Ltd
Bangalore, Karnataka
05.2010 - 01.2011
- Programming Languages & Tools: C++ and Python | Design Patterns: Factory and Facade.
- Wrote a python automation framework used by efi team, helping to achieve 90% automation of efi products
Engineer
Mindtree Ltd
Bangalore, Karnataka
09.2006 - 05.2010
- C, C++ and Brew | Design Patterns: Singleton, Observer and Factory
- Worked on RAID firmware of LSI India pvt
- Worked with AMD India Pvt Ltd for their Math library development and testing.
- Worked on mobile development with Kyocera wireless on their Brew stack.
Education
B.Tech - Computer Science
College of Engineering,Trivandrum, Under Kerala University
09.2002 - 06.2006
Skills
Operating Systems: Mac, Linux/Unix and WindowsNodeJs, C,C, Python, Java & ScriptingData StructuresDesign PatternsGIT, Github, Fusion, SVN, Vim,Visual Code, PerforceData Structures and AlgorithmsProblem SolvingCachingScalabilityAsynchronus programmingQueues, AMQ, KafkaSQL, NoSQLSystem design & integrationPerformance and scalability optimizationRestful servicesHTML and XML/JSON
API design knowledge
Web-based software engineering
Algorithm implementation
Code reviews
Debug & TriageUnit testingCIAgile developmentAccomplishments
- Numerous customer driven innovation stories.
a) Business Stakeholder Framework
b) CS external SSO OMX service
c) Austrac program
- PayPal Here (MPA Signature View/Upload, OMX SSO)
- Merchant Category Code(MCC) revamp program
- Built indexing and caching for dynamic search from back-end for merchant category code titles & codes.
- Account Manager flag removal and hidden address removal from millions of accounts.
- Application to call a rest service by providing service name, request & method which is taking billions of hits per month.
- All internal details and application logging was taken care.
- Design and implement various PayPal Service Integrations
- Auto-update of Google Mock Files: New service operations were added, hence in order to maintain existing test cases mock files had to be updated manually
- AMD India Pvt On ACML Libraries; generated code in C++ by developing test framework in Python.
- LSI India Pvt. Ltd.; designed, developed, tested & maintained utilities, framework & components providing platform abstractions to core RAID application services.
- Kyocera Wireless India Pvt. Ltd.
- QT - Internal Project; developed Scrabble Game.
Interests
Blockchain (Bitcoin Ethereum , IOTA etc)
Decentralized Apps using distributed ledger
Derivative trading, Options and Futures, Calls and Puts (American and European)
Software
Jira
Rally
Git/Github/Gitlabs
Jenkins/Google Cloud VM
Docker
Kubernetes
VirtualBox
Nginx/HAProxy
Redis
AWS
Timeline
Engineer - Infra
Instabase
02.2022 - Current
Engineer - IC
KYT - Know Your Travel
02.2020 - 01.2022
Lead Engineer
Samsung India
07.2019 - 09.2019
SDE 3
PayPal India Pvt. Ltd
01.2011 - 06.2019
Engineer
EFI India Pvt. Ltd
05.2010 - 01.2011
Engineer
Mindtree Ltd
09.2006 - 05.2010
B.Tech - Computer Science
College of Engineering,Trivandrum, Under Kerala University
09.2002 - 06.2006