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Hello

This is Manuka Yasas, Experienced SENIOR SOFTWARE ENGINEER (IC4) Specialized in Blockchain Development.

Who I am?

Manuka is a graduate with a B.Sc. (Honours) in Information Technology, specializing in Software Engineering from the Sri Lanka Institute of Information Technology (SLIIT). He has a solid foundation in software development and is a fast learner keen on acquiring new skills and innovative solutions. Currently, he is pursuing an MBA to bridge technology and business strategies.

Manuka is exceptionally well-suited and highly capable of excelling as a Technical Lead or Senior Software Engineer. He is particularly passionate about developing robust full-stack microservices and blockchain applications. With strong communication skills and extensive experience collaborating with distributed teams across various countries, his enthusiasm, expertise, and adaptability make him a valuable asset to any team and an ideal match for fast-paced, dynamic environments.

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Education
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01/2024 - Present (Expected Graduation: 01/2026)

Master of Business Administration (MBA)

Sri Lanka Institute of Information Technology (SLIIT)

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2019 - 2023

B.Sc. (honors) Information Technology specializing in Software Engineering

Sri Lanka Institute of Information Technology (SLIIT)

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2016 - 2018

G.C.E. Advance Level – Physical Science

Nalanda College, Colombo 10

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2005 - 2016

G.C.E. Ordinary Level - 9A

Royal Institute, Colombo 05

Skills
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Experience
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March 2024 - Present

Senior Software Engineer (IC4 – TEAM LEAD)

Hyperglade LLC - Remote (Full-Time) – Sri Lanka / USA

Lead a team of 3 engineers and drive product engineering initiatives, making critical technical decisions for efficient solution delivery.

Manage the software development lifecycle, sprint planning, overseeing feature development, bug resolution, and legacy code updates.

Review technical proposals with the CTO, granting approvals aligned with strategic goals and technical feasibility.

Prepare project scope breakdowns and facilitate rapid launches to minimize blockers and accelerate product delivery.

Contribute to hiring processes, assessing candidates and onboarding to strengthen team capabilities.

Enhanced and optimized smart contract workflows, achieving over 12 times greater gas efficiency, and developed smart contracts for key modules such as Tokenization as a Service, Trade Finance, and Supply Chain.

Develop smart contracts for key modules such as Tokenization, Trade Finance, and Supply Chain.

Architect Payment Gateway Microservice (Fiat and Crypto) for Customers and Businesses.

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January 2024 - August 2024

Blockchain Consultant

Private Company (Confidential) - Remote (Part-Time) – Sri Lanka / Australia

Served as the blockchain consultant for a renowned carbon credits company in Australia, assisting with the digitalization of their existing carbon credits platform on Web3.

Performed a smart contract audit on Hash Lock and provided continuous guidance to their internal development team from project inception.

Reviewed and tested smart contracts to ensure security and efficiency.

Advised on blockchain architecture and system integration, conducting comprehensive training sessions for teams and clients to enhance their understanding and utilization of blockchain technology.

In addition to the core development guidance, collaborated with the internal team to use Account Abstraction, sponsoring gas fees and architecting the Smart Contract Authentication System.

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June 2023 - January 2024

Blockchain Consultant

Private Company (Confidential) - Remote (Part-Time) – German / Egypt

Served as the blockchain consultant for a GameFI company in Germany, assisting with the digitalization of their gaming collectibles and assets on Web3.

Developed smart contracts for modules such as banking and NFT minting.

Collaborated with internal teams to align blockchain solutions with business goals and regulatory requirements.

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December 2022 - March 2024

Senior Software Engineer (IC4)

Ethlas Metaverse - Remote and on-site (Full-Time) – Singapore

Leveraged skills to collaborate with talented distributed teams, including engineers from FAANG companies, developing innovative solutions using a range of cutting-edge technologies.

Successfully managed multiple projects simultaneously, demonstrating strong project ownership and integration of customer feedback for timely project delivery.

Worked with security experts to ensure the detection and prevention of fraudulent activities, scaling systems to meet the needs of multiple users and requests.

Scaled an app from 0 MAU to 100k MAU in 3 months with a team of 3 engineers.

Completed audits over 100 smart contracts across 11 modules with Hacken and Zokyo.

Led a team of 5 engineers, including 2 smart contract developers, 1 data scientist, and 2 full-stack developers.

Achieved project milestones and documented performance tracking metrics.

Developed business analytics through data-driven insights.

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May 2022 - December 2022

Software Engineer (IC2)

Ethlas Metaverse - Remote (Full-Time) – Singapore

Collaborating with a globally distributed team of highly talented engineers, many of whom are former engineers from leading tech companies such as Google, Microsoft, Airbnb and Grab, bringing together a wealth of diverse skills and expertise.

Successfully leading the development and ownership of a comprehensive fraud management system in close collaboration with the Grab Defence team, utilizing a range of cutting-edge technologies.

Consistently delivering projects on-time, with exceptional quality, exceeding stakeholder expectations.

Collaborating with a dedicated security team, utilizing the latest security technologies to detect and prevent fraudulent activities, while also scaling systems to accommodate high volumes of users and requests.

Utilizing a broad range of technologies and services, including Blockchain, Next JS, Firebase, Google Cloud Services, Node JS, TypeScript, React Native, Google Cloud Platform services, serverless functions, databases, big query, data lakes, event-driven systems, unit testing, Docker, Kubernetes, and CI/CD pipelines to effectively develop and deliver innovative solutions.

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September 2021 - May 2022

Trainee Blockchain Engineer

Tracified - Subsidiary of 99x technology - Remote – Sri Lanka

Demonstrated proficiency in Golang, Mongo DB, and Stellar Blockchain Network by designing and implementing a server with several design patterns including factory, strategy, facade and template to facilitate supply chain-related blockchain transactions.

Provided effective solutions for previously implemented blockchain proofs and demonstrated expertise in implementing blockchain-based proof of continuity, genesis, and existence.

Strengthened the blockchain-based explorer for supply chains by implementing new verifications and improving the existing ones.

Redesigned the authentication system on Identity Server to support all Tracified applications, including the blockchain gateway, web, explorer, and mobile applications, resulting in a streamlined and secure user experience.

Successfully implemented the minting, transferring, and account management of NFT tokens on blockchain networks such as Stellar, Solana, and Polygon, leveraging extensive research and expertise in the field.

Provided guidance and support to peers in implementing various features using Solidity and Golang, demonstrating excellent collaboration and mentoring skills.

Designed and developed the Proof Bot, a service that effectively reverse-engineers blockchain proofs, showcasing advanced problem-solving abilities and ingenuity.

Researched and developed a comprehensive solution for managing blockchain accounts and their funds on the Stellar network, ensuring secure and efficient management of digital assets.

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August 2021 - Feb 2022

Trainee Software Engineer

Black Vault Technologies - Remote – Sri Lanka

Successfully managing multiple client projects concurrently, while ensuring that project timelines and objectives are met in a timely manner.

Familiarizing with both Front-End and Back-End technologies, providing valuable insights and recommendations on how to improve client projects and enhance their user experience.

Working on a complex video rendering and editing project, demonstrating exceptional creativity, and technical expertise.

Experienced in working with a diverse range of technologies, including Google Cloud, Node JS, Vue JS and Python JS.

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2020 - 2022

Freelancer

6 Projects Including Restaurants, Job Portals, and E-Commerce Platforms - Remote

Acquired hands-on experience in PHP, React, Node JS, Solidity and WordPress while working on various freelance projects, providing innovative solutions to complex problems.

Demonstrated exceptional technical expertise, and creativity while implementing features, fixing bugs, and deploying software for various clients, ensuring high-quality deliverables within the given time frame.

Completed more than 6 software projects provided by local, international clients and university peers, showcasing a strong work ethic and dedication to producing high-quality work.

Built a reputation for delivering exceptional value and building strong client relationships by consistently exceeding expectations and delivering high-quality work.

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Professional Certifications
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March 2022

Certified Blockchain Architect

Blockchain Council

Credential ID: 48870051

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April 2022

Certified NFT Developer

Blockchain Council

Credential ID: 49644964

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Additional Courses
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December 2022

GCP Professional Cloud Architect: Google Cloud Certification

Udemy

Credential ID: UC-6bc86158-fdd0-40cf-be75-12f4419de0a1

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October 2022

Design Microservices Architecture with Patterns & Principles

Udemy

Credential ID: UC-00692542-8d30-4650-96f5-c3b300411526

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September 2022

Ethereum and Solidity: The Complete Developer's Guide

Udemy

Credential ID: UC-6cc1f295-9a85-4d16-b75f-1a2284dd90bb

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Publications
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Dec 9, 2022

Decentralized Property Registration and Management Platform

International Conference on Advancements in Computing (ICAC) - IEEE

BEST PROJECTS (14)

Parts-Life 2024 - Present (Hyperglade LLC)

Name:'Parts-Life 2024 - Present (Hyperglade LLC)',
Technologies: ['Solidity', 'Django', 'Amazon Web Services],
Leading backend development for Parts-Life, a blockchain-based platform in its initial stages, focusing on managing invoices, suppliers, products, and orders.
Designing and documenting smart contract workflows required for key modules.
Leading sprint planning, defining project scope, guiding the team, conducting code reviews, and making critical technical decisions.

Trade-FI 2024 - Present (Hyperglade LLC)

Name:'Trade-FI 2024 - Present (Hyperglade LLC)',
Technologies: ['Solidity', 'Openzeppelin', 'Truffle', 'GoldFinch', 'FlipSide', 'Stripe Connect', 'MPC wallet', 'ERC1155', 'ERC20', 'ERC2771', 'ERC4337', 'Django', 'Amazon Web Services],
Leading the development for "Trade Finance," a blockchain-based platform facilitating secure financing for international trade.
Drive the research and development of smart contracts for essential Trade Finance services including Pools, Reserves, Liquidity, Loans, and Borrowers.
Oversee end-to-end development and provided technical guidance to the team on project scope and planning.

TAAS 2024 - Present (Hyperglade LLC)

Name:'TAAS 2024 - Present (Hyperglade LLC)',
Technologies: ['Django', 'Amazon Web Services', 'Solidity', 'Openzeppelin', 'Truffle', 'GoldFinch', 'FlipSide', 'Stripe Connect', 'ERC1155],
Leading the development for "Token as a Service," an NFT project supporting crowdfunding and more.
Developed smart contracts for minting, burning, transferring, and yield generation.
Implemented core backend modules ensuring regulatory compliance for onboarding businesses and individuals in the US.
Integrated Stripe Connect for businesses to accept payments; designed crypto on-ramp/off-ramp mechanisms.
Conducted code reviews and managed end-to-end project development and deployment.

Supply Chain - 2024 - Present (Hyperglade LLC)

Name:'Supply Chain - 2024 - Present (Hyperglade LLC)',
Technologies: ['Stripe Connect', 'Solidity', 'MPC wallet', 'Openzeppelin', 'ERC1155', 'ERC20', 'ERC2771', 'ERC4337', 'Django', 'Amazon Web Services', 'Secrets Manager', 'IAM', 'VPC', 'Cloudwatch', 'JUDE', 'Amplitude', 'Bugsnag],
Led and supervised both frontend and backend development teams, making critical technical decisions.
Optimized supply chain smart contracts, achieving over 12x improvement in gas efficiency.
Implemented meta transactions and developed a relayer service, integrating with blockchain engine microservice.
Enhanced overall code quality, achieving blockchain agnosticism and supporting multiple chains such as Polygon, Arbitrum, and Avalanche.
Introduced and advised on MPC wallets and Account Abstraction.

Carbon Credits APP - 2023 - Present (Private Company)

Name:'Carbon Credits APP - 2023 - Present (Private Company)',
Technologies: ['Solidity', 'Openzeppelin', 'ERC1155', 'ERC-1400', 'Hardhat', 'Openzeppelin defender', 'Node JS', 'Amazon Web Services', 'Account Abstraction],
Served as the blockchain consultant for the project, where I provided guidance for a renowned carbon credits company in Australia, assisting with the digitalization of their existing carbon credits platform on Web3.
Advised on blockchain architecture and system integration, conducting comprehensive training sessions for teams and clients to enhance their understanding and utilization of blockchain technology.
Performed a smart contract audit on Hash Lock and provided continuous guidance to their internal development team from project inception.
Reviewed and tested smart contracts to ensure security and efficiency.
In addition to the core development guidance, collaborated with their internal team to use Account Abstraction, sponsoring gas fees and architecting the Smart Contract Authentication System.

GameFI APP - 2022 (Private Company)

Name:'GameFI APP - 2022 (Private Company)',
Technologies: ['Solidity', 'Openzeppelin', 'ERC1155', 'Node JS', 'React Native', 'Amazon Web Services', 'GraphQL],
Served as the blockchain consultant for the project, where I provided guidance for a GameFI company in Germany, assisting with the digitalization of their gaming collectibles and assets on Web3.
Developed smart contracts for modules such as banking and NFT minting.
Collaborated with internal teams to align blockchain solutions with business goals and regulatory requirements.

FAILSAFE 2022 - 2024 (Ethlas)

Name:'FAILSAFE 2022 - 2024 (Ethlas)',
Technologies: ['Solidity', 'Next JS', 'Google Cloud Services', 'Amazon Web Services', 'Pubsub', 'Redshift', 'Auto Scaling Groups', 'Nitro Enclaves', 'Dynamo DB', 'Dynamo DB Streams', 'Lambda', 'Lambda Layers', 'S3', 'Cloudfront', 'Route 53', 'EC2', 'Elasticache', 'RDS', 'VPC', 'IAM', 'Cloudwatch', 'Secrets Manager', 'Amplitude', 'Bugsnag', 'Stoplight],
This application uses front-running technology in blockchain to proactively intercept and analyze blockchain transactions, enhancing security measures to safeguard against potential malicious attacks.
Ownership of the core backend service of the Failsafe project and reduced response times of APIs by up to 50%. Implemented several features, smart contracts, performed code optimizations, functional resource management, and the migration to web sockets.
Developed custom scripts for the project to capture essential data for marketing and data analytics on a weekly basis. These scripts systematically gather key metrics, enabling the team to make important financial and marketing decisions. The automated data collection enhances the team's ability to run targeted campaigns.
Researched and implemented an administrative portal, to reduce costs in AWS. This was accomplished by strategically controlling the interceptor and efficiently scaling down signing server across all three regions and availability zones.
Collabarated with the security team and dev team to complete the Smart Contracts Audit with Zokyo.

Komo Valley – 2023 (Ethlas)

Name:'Komo Valley – 2023 (Ethlas)',
Technologies: ['Next JS', 'Firebase', 'Google Cloud Services', 'React Native', 'Typescript', 'Circle CI', 'Fastlane', 'AdMob', 'Push Notifications', 'BigQuery', 'Serverless Functions', 'Pubsub', 'Redshift', 'Auto Scaling Groups', 'Stripe],
Conducted rigorous unit testing, code reviews to ensure code quality and optimized workflows.
Created a monitoring dashboard for Serverless functions to quickly identify and address issues.
Integrated various services such as AdMob, Push Notifications into the app to generate more revenue and increase user engagement.
Provided suggestions for improving the app to increase revenue and user satisfaction.
Managed engineering resources effectively to ensure timely delivery of features and bug fixes.
Created pipelines to export all database data to BigQuery for data analytics and reporting.
Automated the build and deployment pipeline using Fastlane and Circle CI. Which reduced the deployment time by 50% - 80%.

POKPOK – 2022 (Ethlas)

Name:'POKPOK – 2022 (Ethlas)',
Technologies: ['Solidity', 'Openzeppelin', 'Chainlink', 'Chainlink Oracles', 'ERC1155', 'Web3 JS', 'Next JS', 'Firebase', 'Google Cloud Services],
This is a NFT platform based on Gamification and Staking tokens.
Managed a team of engineers and performed code reviews to maintain high-quality standards.
Worked as a full-stack engineer, leading the development effort from start to finish.
Created the project from scratch, researching and implementing all features, smart contracts, and successfully deployed the final product.
Conducted regular code reviews of smart contracts and integrated them with the frontend to facilitate NFT minting.
Utilized user analytics and other metrics to identify areas for improvement and optimize user engagement.
Researched and Implemented gamification screens for the NFT platform to increase user engagement and retention.

Fraud Management System – 2022 (Ethlas / Grab Defense)

Name:'Fraud Management System – 2022 (Ethlas / Grab Defense)',
Technologies: ['Solidity', 'Openzeppelin', 'NODE JS', 'Pubsub', 'Big Query', 'Google Cloud Services', 'Facade Design Pattern', 'Filter Design Pattern', 'Abstract Factory Design Pattern],
Led the project covering every aspect from start to finish, designed and developed an automated fraud detection system and rule engine that included more than 20 fraud filters to detect and prevent fraudulent activity.
Continuously improved the system based on input from risk advisors to ensure that it remained effective in the ever-evolving threat landscape.
Led a team of engineers, overseeing all aspects of the project, from initial design to deployment and ongoing maintenance.
Collaborated with the Grab Defense Team (Singapore), as well as former senior engineers from Microsoft and Google, to ensure that the project met the highest standards of quality and effectiveness.
Worked with Whitehat hackers to improve the threshold values of the rules, further enhancing the accuracy of the fraud detection system.

Ethlas Web App – 2022 (Ethlas)

Name:'Ethlas Web App – 2022 (Ethlas)',
Technologies: ['Blockchain APIs', 'Solidity', 'Next JS', 'NODE JS', 'Phaser JS', 'Firebase', 'Google Cloud Services],
Designed and implemented various features for the Ethlas's core web application, working in a fast-paced environment to deliver high-quality solutions on time.
Fixed critical bugs to ensure the smooth operation of the web application and improve user experience.
Conducted regular code reviews to maintain high code quality and prevent potential issues from arising.
Assisted and managed a team of interns, providing guidance and mentorship to help them succeed in their roles.
Collabarated with the security team and dev team to complete the Smart Contracts Audit with Hacken.

Blockchain Gateway - 2021/2022 (99x)

Name:'Blockchain Gateway - 2021/2022 (99x)',
Technologies: ['Golang', 'Mongo DB', 'Stellar Blockchain Network', 'Horizon APIs],
Developed a server in Golang to facilitate blockchain transactions related to the supply chain, with a focus on proof of continuity, genesis, and existence verifications.
Designed and developed the application's authentication system using Identify Server 4 to ensure secure and seamless access for users.
Provided backend support for the proof bot, a frontend component developed to reverse engineer blockchain proofs.
Conducted extensive research to develop an effective solution for managing blockchain-based accounts and their funds.
Restructured previously implemented blockchain proofs to improve their efficiency and effectiveness, while also implementing new solutions to address any gaps and identified issues.

NFT Marketplace - 2021/2022 (99x)

Name:'NFT Marketplace - 2021/2022 (99x)',
Technologies: ['Golang', 'Mongo DB', 'Solana', 'Ethereum', 'Polygon Network', 'Solidity],
Implemented minting, transferring and account management of NFT tokens on Solana blockchain network using Golang SDK.
Implement several contracts related to the NFT marketplace in Solidity.

Blockchain Explorer - 2021/2022 (99x)

Name:'Blockchain Explorer - 2021/2022 (99x)',
Technologies: ['Blockchain APIs', 'Angular JS', 'D3 JS', 'Bootstrap],
This is a blockchain based explorer for supply chains.
Implemented the Graphs related to proof of continuity using D3 JS.
Designed and developed the whole component of the Proof Bot in 2 weeks.

Contact me

If you have any questions or concerns, please don't hesitate to contact me. I am open to any work opportunities that align with my skills and interests.

manukayasas99@gmail.com

+94721146092

P128 Prime City, Galwarusawa Rd, Athurugiriya

© Portfolio by Manuka Yasas