Blockchain Developer

Senior Blockchain Developer

Location: India, Remote

Employment Type: Full-Time / Contract

Department: Engineering

About Us

OpenAssets is building open standards for the next generation of capital markets, providing the trusted foundation for real-world asset tokenization and digital currencies.

We specialize in alternative asset digitization, offering regulatory-conscious tools to design, issue, and manage digital assets in complex financial environments. We also develop loyalty solutions that turn customer engagement into programmable digital assets, helping brands create personalized experiences that drive growth.

OpenAssets operates at the intersection of finance, technology, and regulation focused on building secure, scalable, and open infrastructure for the future of digital markets. Join OpenAssets and be part of shaping the future of digital finance!

Overview

We are seeking a Blockchain Developer to lead the technical implementation of our Web3 infrastructure. In this role, you will be responsible for the end-to-end lifecycle of smart contracts and their integration into our broader financial ecosystem. You will act as a technical authority on blockchain security, scalability, and architecture, ensuring our platform meets the rigorous demands of institutional digital finance.

What You’ll Do

Smart Contract & Blockchain Development

• Design, develop, test, and deploy smart contracts and blockchain applications.
• Build and maintain secure, scalable backend services for blockchain products.
• Develop and maintain cross-platform applications that integrate with on-chain infrastructure.
• Integrate wallets, payment systems, and blockchain APIs with existing systems.
• Optimize for gas efficiency, transaction latency, reliability, and scalability.

Security & Quality

• Implement and uphold best practices for blockchain security and smart contract auditing.
• Review smart contracts and backend code for security vulnerabilities and performance issues.
• Support audits, security reviews, and production releases.
• Maintain high test coverage and disciplined release processes.

Collaboration & Communication

• Collaborate with product and engineering teams to define and deliver technical requirements.
• Communicate technical concepts clearly to both technical and non-technical stakeholders.
• Mentor junior engineers and contribute to a strong engineering culture.
• Stay current with emerging blockchain technologies, DeFi, and Web3 infrastructure trends.

Qualifications & Experience

• Experience: 3+ years of software engineering experience with at least 3+ years of hands-on blockchain/Web3 development.
• Blockchain Core: Strong experience with Solidity and EVM-compatible chains (Ethereum, Polygon, and others).
• Production Deployment: Proven track record building, testing, deploying, and maintaining smart contracts in production.
• Deep Technical Knowledge: Solid understanding of blockchain architecture, including consensus mechanisms, gas optimization, wallet flows, token standards, and transaction lifecycles.
• Full-Stack Proficiency: Good understanding of the MERN stack (MongoDB, Express.js, React, Node.js) and how full-stack applications integrate with blockchain infrastructure.
• Backend Expertise: Proficiency in Node.js and TypeScript with experience building RESTful backend applications.
• Testing & Tooling: Experience with smart contract and backend testing frameworks (e.g., Foundry, Hardhat, Mocha, Jest) and Web3 libraries like Ethers.js or Web3.js.
• Cloud Infrastructure: Hands-on experience with AWS, including deploying, managing, and scaling services like EC2, S3, Lambda, and RDS.
• Databases & DevOps: Comfortable with relational (PostgreSQL) and non-relational (MongoDB) databases, Git, and collaborative development workflows.
• Soft Skills: Strong communication skills in English with the ability to articulate technical concepts to diverse stakeholders.

Nice to Have

• Familiarity with the Move language (Sui, Aptos).
• Experience with smart contract audit tooling such as Slither, Mythril, or Manticore.
• Exposure to RWA tokenization, DeFi, stablecoins, NFTs, staking, or bridging protocols.
• Professional background in fintech, payments, or regulated blockchain use cases.

We are committed to providing equal opportunity for qualified applicants to contract positions, regardless of race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status. This is a contract opportunity, not a direct employment role.

We are looking for a skilled Full Stack Developer with 3+ years of experience in Python and React.js to join our engineering team. The ideal candidate should have strong experience building scalable web applications, developing backend APIs, and creating responsive frontend interfaces.

Key Responsibilities

• Develop and maintain full-stack web applications using Python and React.js.
• Build scalable and secure RESTful APIs using Django, Flask, or FastAPI.
• Develop responsive and user-friendly interfaces using React.js.
• Integrate frontend applications with backend APIs and third-party services.
• Work with databases such as PostgreSQL, MySQL, or MongoDB.
• Write clean, reusable, and maintainable code.
• Troubleshoot, debug, and optimize application performance.
• Participate in code reviews and follow software development best practices.
• Collaborate with UI/UX designers, QA engineers, DevOps, and other developers.
• Write unit and integration tests to ensure application reliability.
• Use Git/GitHub/GitLab for version control.
• Contribute to system design, documentation, deployment, and continuous improvement.

Required Skills

• 3+ years of professional experience in Full Stack Development
• Strong hands-on experience with Python
• Strong experience with React.js
• Experience with Django / Flask / FastAPI
• Good understanding of JavaScript, HTML5, and CSS3
• Strong knowledge of REST APIs
• Experience with PostgreSQL / MySQL / MongoDB
• Good understanding of Git and version control
• Strong knowledge of OOP, data structures, and software development concepts
• Experience with debugging and performance optimization
• Good problem-solving and communication skills

Good to Have

• Experience with TypeScript
• Knowledge of Next.js
• Experience with AWS / Azure / GCP
• Knowledge of Docker and Kubernetes
• Understanding of CI/CD pipelines
• Experience with microservices architecture
• Exposure to AI/ML or GenAI applications is a plus

Education

Bachelor’s degree in Computer Science, IT, Engineering, or a related field.

🚀 WE’RE HIRING | FULL STACK DEVELOPER – PHP/PYTHON & REACT.JS

📍 Location: Chennai, Tamil Nadu – On-site

💼 Experience: 1–4 Years

🕒 Employment Type: Full-Time

🔄 Shift: Rotational Shift

💰 Salary: Competitive, based on experience

🔹 About the Role

We are looking for a skilled Full Stack Developer with hands-on experience in PHP and/or Python, along with strong frontend development skills in React.js.

The selected candidate will work on scalable web applications, CRM platforms, dashboards, REST APIs, automation tools, and workflow-driven applications.

🔹 Key Responsibilities

• Develop and maintain web applications using PHP (Core PHP, Laravel) and/or Python (Django, FastAPI)

• Build scalable RESTful APIs, microservices, and backend services

• Develop responsive and reusable user interfaces using React.js

• Work with JavaScript (ES6+), HTML5, CSS3, jQuery, AJAX, and Bootstrap 5

• Design and optimize databases using MySQL and/or PostgreSQL

• Implement authentication, authorization, and RBAC

• Integrate third-party APIs and internal services using REST/JSON

• Develop automation scripts, background tasks, scheduled jobs, and workflows

• Debug, test, optimize, and maintain application performance

• Deploy and maintain applications on Linux and cloud platforms such as AWS/DigitalOcean

• Use Git and follow code review and Agile development practices

• Collaborate with cross-functional teams to deliver technical solutions

🔹 Required Skills

Backend:

• PHP – Core PHP, Laravel

• Python – Django, Django REST Framework and/or FastAPI

• REST API & JSON

• Authentication, authorization & API integration

• MySQL and/or PostgreSQL

• Database design & query optimization

Frontend:

• React.js

• JavaScript (ES6+)

• HTML5 & CSS3

• jQuery & AJAX

• Bootstrap 5

• React components, Hooks & state management

Development & Tools:

• Linux environments

• Cron jobs & background workers

• Git / Version Control

• Strong debugging and problem-solving skills

🔹 Nice to Have

• Redux / Context API

• JWT / OAuth & API security

• Celery / Redis / Message Queues

• Docker & CI/CD

• Microservices architecture

• AWS / DigitalOcean

• CRM, dashboards, reporting & automation

• AI/ML integrations

• Application performance & security optimization

🎓 Qualifications

• Bachelor’s degree in Computer Science, IT, or a related field

• 1–4 years of professional Full Stack Development experience

• Candidates with strong experience in PHP/Laravel OR Python/Django/FastAPI, along with React.js, are encouraged to apply.

Euphoric Thought Technologies is a technology-driven firm focused on building scalable software solutions that streamline complex business processes. Operating at the intersection of data engineering and cloud infrastructure, the company serves a diverse portfolio of clients across the fintech and enterprise SaaS sectors. With a culture rooted in technical excellence and agile problem-solving, Euphoric Thought Technologies empowers its engineers to own their modules from conception to deployment, fostering an environment where high-impact code is the primary driver of growth.

Role Overview:

As a Python Developer specializing in Flask, you will be responsible for architecting and maintaining robust backend services that power our core platforms. Must have hands on experience in React.js ,You will work closely with cross-functional teams, including product managers and frontend engineers, to translate business requirements into high-performance API endpoints. Your daily contributions will directly influence the scalability and reliability of our applications, ensuring that our users experience seamless performance even as our data volume and traffic continue to grow.

Key Responsibilities:

- Design and implement scalable RESTful APIs using the Flask framework to support high-traffic web applications.

- Optimize database queries and schema designs in SQL to ensure low-latency data retrieval for complex reporting modules.

- Deploy and manage backend services on AWS infrastructure, ensuring high availability and efficient resource utilization.

- Collaborate with the engineering team to conduct rigorous code reviews, maintaining high standards for code quality and maintainability.

- Troubleshoot and resolve production-level bottlenecks to improve the overall stability of the application ecosystem.

- Integrate third-party services and internal microservices to expand the functionality of our existing product suite.

Required Skillset:

- Demonstrated expertise in building production-grade applications using Python and the Flask framework with 5 years of professional experience.

- Strong proficiency in React.js.

- Hands-on experience with AWS cloud services, including EC2, RDS, and S3, for deploying and scaling backend infrastructure.

- Ability to communicate technical concepts clearly to non-technical stakeholders and work effectively in a collaborative, team-oriented environment.

- Strong analytical mindset with the ability to debug complex issues and provide long-term architectural solutions.

- Comfortable working in a hybrid office environment in Bangalore, demonstrating the ability to manage tasks independently while staying aligned with team goals.

- A degree in Computer Science, Engineering, or a related field is preferred, though equivalent professional experience is highly valued.

Experience:

• Python: 5 years (Preferred)
• AWS: 3 years (Preferred)
• Flask: 3 years (Preferred)
• React.js 4 years (Preferred)

We’re looking for a hands-on builder who can thrive in a fast-paced startup environment. You’ll own features end-to-end, from designing architecture to writing clean, reusable code, testing, deploying, and iterating fast.

What you’ll do

• Build and scale web + mobile applications using Python (Django) and React Native/React.
• Design, develop, and deploy cloud-native solutions using AWS services.
• Work with both SQL and NoSQL databases (PostgreSQL, DynamoDB).
• Ensure applications are secure, scalable, and performance-optimized.
• Collaborate closely with product, design, and business teams to ship features at lightning speed.
• Take ownership of problems - from brainstorming and architecture to debugging in production.
• Bring startup energy: move fast, learn fast, and don’t be afraid to get your hands dirty.

What we’re looking for

• 1-3 years of experience in full-stack development.
• Strong experience in Python (Django).
• Proficiency in React Native/React, with solid knowledge of JavaScript.
• Experience with AWS services (serverless, EC2, S3, etc.).
• Experience with docker or kubernetes.
• Hands-on with databases: PostgreSQL, DynamoDB.
• Strong understanding of data structures, design patterns, and microservices architecture.
• Proficiency with Git and version control workflows.
• A product-first mindset, balancing code quality with speed of execution.
• Great communication skills, detail-oriented, and a true team player.
• Bonus - If you are an AI native developer and try to solve problems using AI

Mandatory (Experience 1) – Must have 3+ years of experience in Full Stack Development with hands-on experience building and deploying production-grade web applications.

2

Mandatory (Skills 1) – Must have strong hands-on experience in Python or Node.js for backend development.

3

Mandatory (Skills 2) – Must have experience developing REST APIs using frameworks such as FastAPI, Flask, Express.js or similar.

4

Mandatory (Skills 3) – Must have hands-on experience with at least one modern frontend framework such as React.js or Angular, along with JavaScript/TypeScript.

5

Mandatory (Skills 4) – Must have hands-on experience with SQL databases such as PostgreSQL, MySQL or similar.

6

Mandatory (Skills 5) – Must have experience integrating frontend applications with backend APIs and third-party services.

7

Mandatory (Skills 6) – Must have good understanding of OOP, data structures, software engineering practices and clean/testable code.

8

Mandatory (Skills 7) – Must have experience with Git/GitHub and standard development practices including code reviews and version control.

9

Mandatory (Skills 8) – Must have experience with cloud platforms such as Azure or AWS and exposure to application deployment.

10

Mandatory (Skills 9) – Must have hands-on experience with Docker/containerized applications and understanding of scalable application development.

11

Preferred (Experience 1) – Experience with Kubernetes, CI/CD pipelines and cloud-native deployments.

12

Preferred (Experience 2) – Experience with Redis/caching, asynchronous programming, microservices or distributed systems.

13

Preferred (Experience 3) – Exposure to AI/ML, Generative AI, LLM applications or RAG-based applications.

14

Mandatory (Age) - Candidate's Age should be below 28

15

Mandatory ( Location ) - Candidates Only From Pune & Mumbai.

16

Mandatory (Education) - Must be a B.E / B.Tech from Tier 1 Colleges (IIT, NIT, IIIT, BITS, DTU, NSUT)

• Python Scripting: Proficient in writing clean, efficient scripts using Python for automation and problem-solving.

• Web Frameworks: Skilled in Django/Flask/FastAPI for backend and REST API development, with frontend knowledge (React/Angular/Vue).

• Testing: Experienced in unit and integration testing with pytest and ensuring code quality using linting tools.

• Data Analytics: Capable of processing and analysing data using Pandas, NumPy, and visualization libraries like Matplotlib.

• Version Control: Proficient in using Git for source code management and collaboration through branching and merge strategies.

• Databases: Strong in SQL and NoSQL database design, query optimization, and management.

• Tools: Familiarity with additional build tools and CI/CD systems (e.g., Jenkins, GitLab CI/CD).

• Cloud technologies: Familiarity with AWS/Azure or GCP.

• Problem-Solving: Excellent analytical and problem-solving skills related to build systems and processes.

• Communication: Strong verbal and written communication abilities.

Requirements:

• Bachelor's degree in engineering with a specialization in computer science or a related field.
• 3+ years of experience as a software engineer in a product development setting.
• Love of technology and experience with one or more programming languages, such as Python
• Experience in full-stack development, including designing APIs and integration patterns, implementing security, and implementing frameworks for unit and end-to-end testing.
• Experience with microservices architecture.
• Experience in one or more frameworks like FastAPI, Spring, GRPC, Flask, etc.
• Extensive experience in a test-driven development environment.
• Understanding of CI/CD practices, including code check-in policies, automated unit tests, automated code deployments, etc.
• Ability to grasp new technologies and use them effectively to create industrial-strength software.
• Good communication skills. You can communicate well in the English language with product managers, your team members, and external stakeholders to understand their needs and convey yours in a clear, precise manner, verbally or in writing.
• Strong collaboration skills. You have demonstrated the ability to work with both senior and junior technical professionals and get work done. You quickly earn the trust of the people you work with. People enjoy and have fun working with you.
• Deadline-oriented. You understand that deadlines are meant to be met.
• Challenges will surface, and obstacles and roadblocks will cause delays, but you plan for them in advance and still ship your features on time to meet your commitments.
• Bias for action. Your default setting is to take action and not wait for things to happen. You love to learn about new technologies and advancements in the software industry.

Benefits at 314e Corporation:

• Medical Benefits
• Office Game space
• Referral Program
• Holiday parties

About the Role

As a Full Stack Developer at Talentlo, you will design, build, and ship features across the entire product stack — from intuitive front-end experiences to robust back-end services. Your work will directly shape the platform that transforms how companies hire.

Apply here :(https://www.talentlo.com/jobs/full-stack-developer-talentlo-bangalore-01a1254d-071)

Responsibilities

• Design and implement scalable full-stack features using React Native, Node.js, and Python across web and mobile surfaces
• Build and maintain RESTful APIs that power seamless candidate and recruiter experiences
• Architect and optimise relational database schemas to support reliable, high-performance data access
• Collaborate with product and design teams to translate requirements into clean, maintainable code
• Write unit, integration, and end-to-end tests to ensure code quality and system reliability
• Participate actively in code reviews, contributing to engineering standards and best practices
• Troubleshoot and resolve production issues quickly, implementing lasting performance improvements
• Manage version control workflows using Git, including branching strategies and pull request reviews
• Contribute to technical documentation, architecture discussions, and sprint planning ceremonies
• Integrate third-party services and cloud infrastructure components to extend platform capabilities

Experience & qualifications

Must-have skills : React Native, Node.js and Python

Required skills : Relational Databases, REST API, Git and Full Stack Development , TypeScript and AWS

Required qualifications

Bachelor's degree in Computer Science, Engineering, or a related field — or equivalent practical experience

Preferred qualifications

Familiarity with Agile or Scrum development methodologies

Experience working in a startup or product-led engineering environment

Exposure to AI/ML integrations or data-driven product features

Opportunity. This is a rare chance to build a high-impact product from the ground up, influence the technical direction of an AI-powered hiring platform, and grow rapidly alongside a company solving a real problem at scale.

Why join us

01 Build Something That Matters Impact

Your code will directly influence how thousands of companies discover and hire talent. At Talentlo, every feature you ship has a measurable real-world effect on hiring outcomes.

02 Accelerate Your Technical Career Growth

Work across the full stack, engage with AI-driven product challenges, and grow your skills rapidly in an environment that encourages ownership and experimentation.

03 High-Ownership, Low-Bureaucracy Team Culture

Join a lean team where your ideas are heard, decisions are made quickly, and you have genuine autonomy over how you solve problems.

04 Competitive Compensation Package Compensation

We offer a market-competitive salary, performance-linked incentives, and the opportunity to share in the company's growth through an early-stage equity programme.

About Talentlo

Talentlo is an AI-powered Hiring Intelligence platform built for companies that want to make smarter, faster hiring decisions. Rather than relying solely on resumes and keyword matching, Talentlo evaluates candidate skills, experience, projects, and behavioural insights to surface the right fit for every role. The platform helps hiring teams screen candidates, rank applicants, understand candidate-job fit, and move from application to offer with confidence.

Mission & vision: Talentlo's mission is to bring intelligence to every hiring decision. The vision is a world where every company — regardless of size — has access to the same quality of hiring insight that the best teams in the world rely on.

Culture: Talentlo operates as a small, high-ownership team where engineers are trusted to make meaningful decisions. The culture values clarity over process, outcomes over activity, and continuous learning. Every team member contributes directly to the product and sees the impact of their work quickly.

Quality Thought is looking for for talented individuals who have core interest and desire to build their career in Computer, IT field. The candidates should have strong knowledge on domains like Python, Gen AI, MERN stack and other technologies.

Education details: MTech candidates are applicable.

Salary: 2.4 LPA-3.6 LPA

This is a requirement for Universities like Kaveri University, Hyd, Anamacharya University, St. Mary's University, Hyd and Bharat University, Chennai. Interested candidates who are interested to apply or relocate either in Hyderabad or Chennai or Andhra Pradesh can send their resumes