Blockchain Developer

Role Overview

We're seeking a MERN Stack Developer with experience in Web3 development to join our team. The ideal candidate will be comfortable building full-stack applications, integrating smart contracts, and working in a fast-paced startup environment.

Responsibilities

• Develop and maintain full-stack applications using MongoDB, Express.js, React.js, and Node.js
• Integrate smart contracts and blockchain functionality using Web3.js, Ethers.js, or similar libraries
• Collaborate with product managers, designers, and blockchain engineers
• Write clean, maintainable, and testable code
• Troubleshoot and debug applications
• Stay updated with the latest Web3 trends and technologies

Requirements

• 1+ year of hands-on experience with the MERN stack
• Basic to intermediate knowledge of smart contracts, Ethereum, and Web3.js/Ethers.js
• Familiarity with Solidity and Ethereum development tools (e.g., Truffle, Hardhat)
• Understanding of REST APIs and integration practices
• Strong problem-solving skills and a proactive attitude
• Good communication and collaboration skills

Bonus Skills

• Experience with IPFS, The Graph, or Layer 2 solutions
• Contributions to open-source Web3 projects
• Knowledge of NFT standards or DeFi protocols

What We Offer

• Competitive salary and performance-based incentives
• Flexible working hours and remote-friendly culture
• Opportunity to work on cutting-edge Web3 projects
• A collaborative, supportive, and innovative environment

• 4+ years of development experience and at least 1 year of smart contract developer experience in solidity
• Solid experience in delivering resilient and secure code in Solidity
• Knowledge and experience of the test-driven development
• Very good understanding of the Blockchain technologies, especially Ethereum
• Familiar with the common Smart Contract vulnerabilities
• Solid understanding about Ethereum infrastructure, e.g. like Gnosis, TheGraph

RedSoft Solutions is a fully remote organization with a talented team spread across five cities in two countries. We specialize in the JavaScript and Web3 technology stack, delivering exceptional web applications to our clients. Our expertise ranges from developing web3 applications for startups to streamlining enterprise processes. We are proud to be at the forefront of blockchain technology, constantly pushing boundaries and creating cutting-edge solutions in this rapidly evolving field.

We foster a freedom culture that empowers our team members to choose their own working hours and pursue their preferred technologies. We firmly believe that teams perform best when they have the freedom to work on what they love with minimal restrictions. Work-life balance is a core value for us, and we prioritize written communication for effective collaboration, reducing the need for frequent calls and meetings.

Job Title: Blockchain Developer

Location: Fully-Remote :earth_asia:

Responsibilities:

Design and develop decentralized applications (dApps) using the Web3 technology stack, including Solidity, React.js, Node.js, Truffle, Ganache, and Hardhat.

Write and deploy smart contracts on various blockchain platforms.

Ensure the security and integrity of blockchain applications by implementing best practices and following cryptography and security principles.

Collaborate with cross-functional teams to integrate blockchain solutions into existing systems.

Stay up-to-date with the latest trends and developments in blockchain technology and share insights with the team.

Qualifications:

Minimum of 2 years of experience as a Blockchain Developer or a related role.

Excellent understanding of blockchain technology and its practical applications.

Proficiency in the Web3 technology stack, including Solidity, React.js, Node.js, Truffle, Ganache, and Hardhat.

Solid grasp of cryptography and security principles in the context of blockchain technology.

Knowledge of smart contracts and their development and deployment.

Familiarity with algorithm and data structures to optimize blockchain applications.

Strong problem-solving and analytical skills.

Excellent communication and interpersonal skills.

Academics:

Academic qualifications in any field are acceptable as long as you possess the required skills.

Relevant certifications in blockchain development or related domains are desirable.

Salary and Benefits:

Competitive salary range of 6-8 LPA based on experience and qualifications.

Fully remote work environment, allowing for a flexible and balanced lifestyle.

Opportunity to work with cutting-edge blockchain technologies and contribute to the growth of the industry.

Collaborative and inclusive company culture that values teamwork and innovation.

Emphasis on work-life balance and freedom to pursue preferred technologies.

Professional development opportunities and support for further learning and certifications.

If you are a passionate Blockchain Developer with a strong technical background and a desire to work in a fully remote and innovative environment, we would love to hear from you. Join our team at RedSoft Solutions and be part of the revolution in blockchain technology!

• Expertise in Typescript, Nodejs and Golang. 
• Prior working experience in Hyperledger 2.x. 
• Strong understanding of blockchain, smart contracts, consensus mechanisms and cryptography. 
• Proficiency in developing Chain codes/Smart Contracts. 
• Experience building front end applications using Angular. 
• Proficient in MongoDB. 
• Experience with Relation databases like MySQL, MSSQL. 
• Write application code, smart contracts, and unit test cases according to the quality guidelines. 
• Work across multiple teams, mentor junior developers and actively participate in code reviews. 
• Co-ordinate with architects to produce technical designs.  
• Skilled in Docker, Kubernetes, Nginx, Git. 
• Knowledge of design patterns and best practices. 
• Document the development process, architecture, and standard components. 
• Awareness of CI/CD pipelines.

Requirements

Responsibilities

Hiring Process

About Mastercard

We are the global technology company behind the world’s fastest payments processing network.

We are a vehicle for commerce, a connection to financial systems for the previously excluded, a technology innovation lab, and the home of Priceless.

We ensure every employee has the opportunity to be a part of something bigger and to change lives.

We believe as our company grows, so should you.

We believe in connecting everyone to endless, priceless possibilities.

Overview Services and Data is helping to shape the future of data insights by leveraging billions of anonymized, aggregated transactions in a 10 petabyte date warehouse to help financial institutions, merchants, media, and governments manage their businesses more effectively.

Advanced Analytics is charged with servicing clients by centralizing and optimizing the world class analytical, modeling, software coding, data sourcing, product development, product management, econometrics, and associated delivery capabilities of the MasterCard Advisors organization.

It focuses on creating innovative technology solutions which leverage technology in the data science, artificial intelligence and analytics arenas; on enabling the field with industrialized, repeatable products and on researching and incubating emerging technology to determine how they might apply to our customers and facilitate positive outcomes.

What we are re looking for

• Are you motivated by developing new Analytical skills, leading to insights into issues and developing recommendations that add real value to clients?
• Have you managed the client independently and effectively?
• Do you want to play a key role in driving a world beyond cash?
• Leading the formulation of artificial intelligence and machine learning solution objectives. Working on technical requirements based on user need.
• Responsible for creating the framework of solutions that take data intensive and complex business challenges and provide easily consumed and automated outcomes
• Using unique visualization techniques, condenses large volumes of complex ideas into elegant and simple visual models
• Determine opportunities to exploit new data sources or leverage new outcomes from existing data sources, by applying new models and algorithms to create business value
• Influences a client's strategic decisions by using deep industry expertise and deploying innovative Deep Learning analytics solutions in the operational systems Leadership Skills
• Works closely with clients/internal stakeholders to understand their business needs and design a technical solution
• Proving viability of the solution through mechanisms like proof-of-concepts
• Thought Leadership in AI – Developing compelling audience-specific messages and tools. Capture and share best practices and insights internally and with partners and customers.
• Self-driven, energetic, creative with ability to work in global teams.
• Excellent communication skills and a wide knowledge base, to convince the Stakeholders on application of AI/ML
• Provide technical leadership to the team members in relevant topics on AI/ML
• Adaptable - Takes in stride and constantly attunes to the changing needs of a highly dynamic business
• Curious - our key contributors are always seeking to grow their knowledge, to gain new perspectives, and to find better ways forward by researching and showcasing latest AI tools, techniques and applications
• Tenacious - self-starters who will take ownership of projects and bring them to completion despite difficulties or setbacks
• Consulting and Project Management Experience preferred

Functional and Technical Skills

• Experience in building and implementing AI application in any of the two domains - Fraud, risk, marketing, finance, operations for Banks, Fintech, Ecommerce, merchants or retailers
• Has a deep understanding of business value industry requirements and advanced analytic models (statistical, operations research, computing process)
• Responsible for building applications using artificial intelligence/machine learning technology, applying latest industrial and academic developments, prefer Kaggle hackathon participant
• Expertise in deep learning frameworks for Production Systems like Tensorflow, Keras (for RPD and neural net architecture evaluation), PyTorch and Xgboost, Caffe, Theono
• Proficient in Deep Learning algorithm techniques like Random Forest, GBM, KNN, SVM, Bayesian, Text Mining techniques, Multilayer Perceptron, Neural Networks – Feedforward, CNN, LSTM’s GRU’s.
• Optimization techniques – Activity regularization (L1 and L2), Adam, Adagrad, Adadelta concepts; Cost Functions in Neural Nets – Contrastive Loss, Hinge Loss, Binary Cross entropy, Categorical Cross entropy; developed applications in KRR, NLP, Speech and Image processing
• Expertise in classical Machine Learning algorithms like Logistic Regression, Decision trees, Clustering (K-means, Hierarchical and Self-organizing Maps), TSNE, PCA, Bayesian models, Time Series ARIMA/ARMA, Recommender Systems - Collaborative Filtering, FPMC, FISM, Fossil etc
• Extensive experience in statistical tools and programming environments like Python, R, SAS, SQL
• Experience with BIG DATA platforms - Hadoop, Hive, Spark, GPU Clusters for deep learning

Qualifications

• Minimum Graduate degree in Mathematics/Computer Science/Engineering