Shishir is available for hire
Hire ShishirShishir Singh
Verified Expert in Engineering
Amazon Web Services (AWS) Developer
Hyderabad, India
Toptal member since August 27, 2026
Bio
Across fintech, SaaS, and telecom, Shishir has spent over 20 years building scalable platforms and leading engineering teams. His toolkit centers on AWS, Agile, and DevOps. While at Torum, he led a back-end team to scale a SocialFi platform to handle over 7,000 TPS and achieved a success rate greater than 99.5% during peak usage.
Portfolio
TiTa Apps
JavaScript, TypeScript, Node.js, React, Amazon Web Services (AWS), Gemini API...
Torum
Node.js, Express, Amazon Web Services (AWS), DevOps, Software Development, REST...
Opia Labs
Agile, Scrum, Amazon Web Services (AWS), Blockchain, React Native, Serverless...
Experience
- Amazon Web Services (AWS) - 10 years
- Software Architecture - 8 years
- Scrum - 6 years
- Node.js - 4 years
- Blockchain - 4 years
- React - 3 years
- Gemini API - 2 years
- Solidity - 2 years
Preferred Environment
Amazon Web Services (AWS), Node.js, TypeScript, MongoDB, PostgreSQL, REST, Claude, Gemini API, OpenAI API, PHP
The most amazing...
...thing I recently built was Content Guardian, 4 stage agentic AI workflow using Mastra and Gemini with governance, guardrails, evals and human in the loop.
Work Experience
Founder/Developer
2023 - PRESENT
TiTa Apps
- Built ContentGuardian, an agentic content-healing platform (4-agent pipeline: Change Detector → Impact Analyzer → Content Regenerator → Content Evaluator, human-in-the-loop governance, LLM-as-judge evaluation).
- Architected and deployed sophisticated, multi-market financial screening applications and advanced analysis tools tailored for active stock, index, and crypto traders.
- Developed a SaaS solution for private tutors called TutorDock using scalable cloud infrastructure and agentic AI.
- Built mobile apps with over 500,000 downloads on the Play Store.
Technologies: JavaScript, TypeScript, Node.js, React, Amazon Web Services (AWS), Gemini API, OpenAI API, Software Development, REST, React Native, Architecture, Back-end, CSS, HTML, HTML5, Mastra, API Architecture, Web Development
Lead Software Engineer - Back end
2021 - 2023
Torum
- Led a high-performing back-end team (8-10+ members) in developing robust Node.js/Express microservices on AWS for a fast-growing SocialFi and crypto platform, successfully scaling the system to handle >7,000 TPS.
- Optimized database queries and back-end execution to achieve low-latency execution, significantly reducing processing bottlenecks and ensuring a >99.5% success rate during peak platform usage.
- Eliminated critical system incidents by spearheading DevOps optimizations, improving release confidence and observability across the production environment.
- Established standard operating procedures and playbooks for system events and incident management, fostering a culture of high ownership and accountability.
Technologies: Node.js, Express, Amazon Web Services (AWS), DevOps, Software Development, REST, TypeScript, JavaScript, MongoDB, MongoDB Atlas, Mixpanel, Architecture, Back-end, API Architecture, API Design, Web Development
Chief Technology Officer
2018 - 2021
Opia Labs
- Provided strategic technical leadership for comprehensive product development, owning business-critical metrics and aligning engineering deliverables with company growth targets.
- Built, mentored, and led a high-velocity technology team, implementing Agile/Scrum methodologies to increase release frequency and overall execution quality.
- Was actively involved with the development team in hands-on development of custom web and mobile apps.
Technologies: Agile, Scrum, Amazon Web Services (AWS), Blockchain, React Native, Serverless, Architecture, Back-end, HTML, HTML5, API Architecture, API Design, Web Development
Technical Project Manager
2018 - 2018
Nomisma
- Established robust back-end development workflows, ensuring high execution quality and providing critical operations support for rapid project delivery.
- Hired and built effective development teams, running Scrum to ensure timely and high-quality project delivery.
- Engaged all stakeholders to ensure project goals are aligned and shared across the chain.
Technologies: Scrum, IT Project Management
Developer/Product Owner
2017 - 2018
CoworkingNext
- Developed a coworking space management solution as a side project for one client, which I later transformed into a SaaS platform.
- Coordinated with stakeholders to understand the pain points and delivered an MVP based on the Pareto principle, addressing 80% of the problems with 20% of the efforts.
- This SaaS platform was later acquired by one of its paid customers.
Technologies: Agile, PHP, MySQL, ClickUp, APIs, REST, SQL
Co-founder/CTO
2017 - 2018
NGO Xchange
- Developed end-to-end platform on Ethereum using Solidity, web3.js, and Node.js, ensuring robust architecture, secure transactions, and alignment with strict Web3 standards.
- Coordinated with financial institutions to integrate secure, high-trust payment solutions and smart contract functionalities.
- Developed a technical solution whitepaper aligned with the business goals.
Technologies: Ethereum, Solidity, Web3.js, Node.js, Software Development, Software Architecture, Architecture, Back-end, CSS, Web Development
Director of Engineering
2010 - 2017
Sopan Technologies
- Hired, trained, and mentored a highly motivated team of developers and designers, cultivating a culture of technical excellence and continuous improvement.
- Established efficient business processes and workflows to ensure standardization and operational efficiency across engineering projects.
- Actively contributed to ongoing projects as a full-stack developer, building scalable solutions and providing hands-on technical guidance.
Technologies: PHP, JavaScript, MySQL, PostgreSQL, REST, Agile, IT Project Management, Architecture, Back-end, CSS, HTML, HTML5, Web Development
Lead Software Engineer
2004 - 2010
Motorola
- Responsible for driving WiMax and GSM network management (NM) development efforts for multiple clients across the globe.
- Provided critical level 3 (development) support for live GSM and WiMax deployments in EMEA and North America regions between 2006 and 2008.
- Deployed network management applications in EmbraTel (Brazil) and MenaTel (Bahrain) for WiMax networks, demonstrating a global mindset and customer solution delivery.
Technologies: Java, Network Management Stations (NMS), Agile, Architecture
Scientist 'B'
2003 - 2004
Defense Research & Development Organization
- Developed and deployed the Launch Pad Computer (LPC) program for a movable missile launch platform.
- Coordinated with the remote hardware team (Larsen & Toubro) for interface specification development.
- Actively engaged in multi-disciplinary engineering work (software, electrical systems, electronic navigation systems).
Technologies: C++, C
Experience
True Wave Scanner
https://scanner.elliottwavestrading.com/Originally built as a sophisticated Elliott Wave scanner, it evolved into multi-dimensional market analysis for Indian and US stocks markets with AI enabled trading bots that swing trade the markets as per conditions and have been beating the benchmark indexes since inception.
TutorDock
https://tutordock.app/enTutorDock is a SaaS platform for private tutors to manage their work effectively in a single place. They can schedule lessons/classes, track student progress, and manage payments - all in one place. Built for independent teachers with students across the globe.
e4Coach
https://www.e4coach.com/e4coach is an AI enabled chess coach that helps chess players identify and understand the patterns in their weaknesses. A single-game review tells you what went wrong in that game. e4coach reviews a batch of your games together, groups the mistakes, and shows the weakness patterns costing you the most rating so you train the root cause, not one-off blunders.
Education
2011 - 2012
Professional Degree in Executive Management
Xavier Institute of Management - Bhubaneswar
1999 - 2003
Bachelor's Degree in Computer Science and Engineering
National Institute of Technology - Bhopal
Certifications
MARCH 2019 - MARCH 2021
Certified Scrum Master
Scrum Alliance
Skills
Libraries/APIs
React, Node.js, Web3.js, OpenAI API
Tools
Claude, MongoDB Atlas
Languages
Java, PHP, Python, C++, SQL, HTML, HTML5, CSS, Solidity, JavaScript, TypeScript, C
Frameworks
React Native, Next.js
Paradigms
API Architecture, Scrum, DevOps, Agile, Management, REST
Storage
NoSQL, Neo4j, Database Management Systems (DBMS), MySQL, PostgreSQL, MongoDB
Platforms
Ethereum, Amazon Web Services (AWS), Blockchain, Vercel, Mixpanel
Other
Architecture, Back-end, API Design, Web Development, Sales, WiMAX, GSM, Express, IT Project Management, Computer Science, Engineering, Software Architecture, Operating Systems, Software Development, Gemini API, Serverless, ClickUp, Network Management Stations (NMS), Certified ScrumMaster (CSM), Stockfish, Supabase, Trading, Trading Bots, Scripting, Row-level Security (RLS), Mastra, APIs
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