
Context for the Candidates:
Blockchain engineers are tasked with building secure, scalable, and high-performance decentralized applications. This discussion focuses on how to utilize key technologies—Node.js, Rust, Go, TypeScript, Ethers.js, viem, and Hardhat—in smart contract and blockchain system development, while addressing the practical challenges that arise in such projects.
Key Discussion Points:
• How do you integrate Node.js, Rust, Go, and TypeScript in blockchain-backed applications?
• Discuss the trade-offs between using Rust or Go for performance-critical blockchain services.
• What are the key challenges in ensuring the security and scalability of smart contracts using tools like Ethers.js, viem, and Hardhat?
• How do you approach testing, debugging, and deploying smart contracts in a decentralized environment?
• Share best practices for gas optimization, contract upgradability, and backend scalability.
Evaluation Criteria:
1. Technical Knowledge:
• Strong knowledge of Node.js, Rust, Go, and TypeScript with practical experience in blockchain development.
• Proficiency in Ethers.js, viem, Hardhat, and smart contract lifecycle (development, testing, deployment).
• Understanding of security best practices, performance optimizations, and scalability in decentralized systems.
2. Problem-Solving and Integration Skills:
• How candidates approach integrating smart contract solutions with backend services using Node.js, Rust, Go, and TypeScript.
• Solutions proposed for common challenges in blockchain projects such as gas fees, security vulnerabilities, and system bottlenecks.
3. Experience and Expertise:
• Minimum of 2 years of IT experience, including hands-on development with the specified technologies.
• Practical knowledge of blockchain architecture, consensus mechanisms, and decentralized application deployment.
4. Innovation and Critical Thinking:
• Candidates’ ability to think creatively about system architecture, proposing scalable and secure solutions for blockchain-based applications.
• Discussion on the future potential of blockchain technology and how the tech stack can evolve.
5. Communication and Team Collaboration:
• Clear articulation of technical challenges and how to address them in a team setting.
• Ability to lead or contribute to discussions in a way that encourages collaboration and team-driven problem-solving.

About Matqcode
About
Company social profiles
Similar jobs
Job Title: Java Developer
Java Developer – Job Description Wissen Technology is now hiring for a Java Developer - Bangalore with hands-on experience in Core Java, algorithms, data structures, multithreading and SQL. We are solving complex technical problems in the industry and need talented software engineers to join our mission and be a part of a global software development team. A brilliant opportunity to become a part of a highly motivated and expert team which has made a mark as a high-end technical consulting.
Required Skills: • Exp. - 4 to 14 years.
• Experience in Core Java and Spring Boot.
• Extensive experience in developing enterprise-scale applications and systems. Should possess good architectural knowledge and be aware of enterprise application design patterns.
• Should have the ability to analyze, design, develop and test complex, low-latency clientfacing applications.
• Good development experience with RDBMS.
• Good knowledge of multi-threading and high-performance server-side development.
• Basic working knowledge of Unix/Linux.
• Excellent problem solving and coding skills.
• Strong interpersonal, communication and analytical skills.
• Should have the ability to express their design ideas and thoughts.
Role & Responsibilities
You will be working with the Rust compiler and will be responsible for compiling to alternate targets such as WebAssembly
You will be exposed with TDD for unit testing individual functions and integration testing for testing publicly exposed APIs
Working with a Git style workflow where every commit deploys to a stagingenvironment and merged pull requests deploy to production
Setting up CI/CD pipelines for testing and deployment (canary, staging) using Github actionsaccording to project needs
Developing software in Rust
Maintaining and improving existing rust codebases.
Oister Global (www.oisterglobal.com) is India’s premier Alternative Assets Manager. We combine robust diligence, deep domain expertise, and an extensive network to create high quality private market opportunities for our investors.
We are seeking a Senior Backend Developer who will be pivotal in architecting and developing scalable, reliable backend systems from scratch. You will work closely with product managers, designers, and other engineers to build new products, design backend architectures, and ensure high performance and responsiveness of the systems. This role requires strong backend fundamentals, cloud experience, a deep understanding of databases, and a passion for system design and architecture.
Key Responsibilities:
● Product Development: Architect, design, develop, test, and deploy new backend products and features from scratch.
● System Design: Take ownership of system design and architecture decisions for new modules, ensuring scalability, reliability, and security. ● API Development: Build efficient and reusable APIs and backend services using Node.js.
● Database Management: Design data models, optimize queries, and manage MongoDB clusters efficiently.
● Cloud Management: Deploy, maintain, and optimize services on AWS, ensuring high availability and performance.
● Best Practices: Maintain coding standards, ensure code reviews, and champion best practices in security, testing, and maintainability.
● Collaboration: Work closely with frontend developers, product managers, QA, and other cross-functional teams to define, design, and ship new features.
● Performance Optimization: Monitor system performance and ensure system uptime and responsiveness.
● Mentorship: Provide guidance and mentorship to junior developers as required.
● Documentation: Maintain thorough documentation of systems, processes, and best practices. Must-Have
Qualifications:
● Education: Bachelor’s degree in computer science, Software Engineering, or a related technical field.
● Experience: 4–5+ years of hands-on backend development experience.
● Expertise in: Node.js (Express.js, Nest.js or similar frameworks) MongoDB (including indexing, replication, sharding concepts) AWS Services (EC2, S3, Lambda, RDS, API Gateway, CloudWatch, IAM, etc.) Proficient in: System design principles Microservices architecture Event-driven architecture Strong understanding of: RESTful APIs.Authentication and authorization best practices (OAuth, JWT) Experience with: CI/CD pipelines Docker and containerization principles Hands-on experience in: Building scalable, distributed, and fault-tolerant systems Good knowledge of : Logging, monitoring, and debugging distributed applications
Location: Bengaluru
Experience Required: 2+ Year
Employment Type: Full-time
About the Role
We are looking for a passionate and motivated ** Software Engineer** with hands-on experience in the Software development (MongoDB, Express.js, React.js, Node.js,sql)**. The ideal candidate should have strong coding skills, a good grasp of modern web development practices, and excellent communication and work ethics.
Key Responsibilities
- Develop and maintain scalable web applications using the (javascript,MongoDB, Express.js, React.js, Node.js,sql)
- Collaborate with cross-functional teams to define, design, and ship new features
- Write clean, efficient, and well-documented code
- Debug and resolve technical issues across the stack
- Participate in code reviews and contribute to team knowledge sharing
- Stay up to date with industry trends and emerging technologies
Required Skills & Qualifications
- 2+ year of professional experience as a Software Developer
- Proficiency in JavaScript, ES6+, and TypeScript (optional but a plus)
- Solid understanding of MongoDB, Express.js, React.js, and Node.js
- Experience with RESTful APIs and third-party integrations
- Familiarity with version control systems like Git
- Strong problem-solving and debugging skills
- Good communication skills and a team-player mindset
- Strong sense of ownership and work ethics
Preferred Skills
- Experience with cloud platforms like AWS, GCP, or Azure
- Familiarity with CI/CD pipelines and DevOps practices
- Exposure to testing frameworks like Jest, Mocha, or Cypress
-Prior experience working in a fintech company is a strong advantage.
How to Apply ?
Fill in the form below or
You can directly walk-in to our office in Bangalore
Date: 29-03-2025
Time: 10 Am to 12 Pm
Form link: https://forms.gle/PMJMUvz48pTPZeUu5
Location: Paywize Technologies Pvt. Ltd.
M.R Complex, 7th Cross, 6th Main Rd, BTM 2nd Stage, Bengaluru, Karnataka 560076
Join us and be part of the fintech revolution!
Experience: 3-5 Years Experience
Skills:
Javascript, Node JS, HTML, CSS, Advanced JS
Location : Ahmedabad
About the company
It has set up a benchmark in the Medical and Health industry with its Digital revolutionary changes. It had a huge impact on Countries Education & the Health sector, as it has taken an effort to uplift & Developing Digital support in India's Medical Education with the sword of Technologies. Our products are being Designed & Developed to benefit the Medical Aspirant as well as its Country's Health Education system. With its continuous effort, many Medical Institutions have been successfully adopting a Digitalised advanced way of Teaching & Learning. Its MedWhiz LMS is very Effective & Essential for Medical Aspirants.
Experience : 3-4 Years
Responsibilities
● Integration of user-facing elements developed by a front-end developers with
server side logic
● Building reusable code and libraries for future use.
● Optimization of the application for maximum speed and scalability.
● Implementation of security and data protection.
● Design and implementation of data storage solutions.
Skills
● Basic understanding of front-end technologies and platforms, such as
JavaScript, HTML5, and CSS3.
● Proficient knowledge of a back-end programming language i.e Node
Js(Mandatory).
● Proficient Knowledge of NoSQL database i.e MongoDb (Mandatory).
● Proficient understanding of Rest API’s. (Mandatory).
● Proficient understanding of code versioning tools, such as Git.
● Basic understanding of AWS.
● User authentication and authorization between multiple systems, servers, and
environments.
● Integration of multiple data sources and databases into one system.
● Management of the hosting environment, including database administration
and scaling an application to support load changes.
● Data migration, transformation, and scripting.
● Setup and administration of backups.
● Outputting data in different formats.
● Understanding differences between multiple delivery platforms such as mobile
vs desktop, and optimizing output to match the specific platform.
● Creating database schemas that represent and support business processes.
● Implementing automated testing platforms and unit tests.
Regards
Team Merito
We are looking for a Java Developer with experience in building high-performing, scalable, enterprise-grade applications. . You'll be required to apply your depth of knowledge and expertise to all aspects of the software development lifecycle, as well as partner continuously with your many stakeholders daily to stay focused on common goals You will be part of a talented software team that works on mission-critical applications
Responsibility
- Write automated test cases to test code.
- Excellent teamwork skills with an ability to get the work done with minimal
- Experience with multiple mobile platforms is a plus.
- A passion and will to accept any new technical challenge that may come across.
- Linux scripting and SSH terminal
- Conceptual, Working knowledge of - DBMS, SQL, PL/SQL.
- Ability to write clean and documented code.
- A team player can provide technical expertise for a small team of developers.
- Strong hands-on and experience in core Java - Java/J2EE
- Design and implement new features, create UI, debugging, and data modeling.
- To update and sync with other team members daily.
- Ability to communicate effectively, both written and oral, at all levels to various technical and non-technical audiences
- Testing all applications against software and hardware versions. Provide timely turnaround and documentation of things implemented.
Additional preferred skills * JSP/Servlets OR JQuery/HTML5 AND JavaScript
Requirements:-
- Working knowledge of - MySQL.
- Working experience on Struts/Spring.
- Experience with web services standards and related technologies - SOAP/Rest, AJAX, JSON, and XML.










