Blockchain Developer

Position: Backend Lead / Architect

Location: Pune

Position Overview : We are seeking a highly skilled and experienced Backend Lead / Architect to design, develop, and maintain scalable, reliable, and high-performance backend solutions for our multi-tenant SaaS products. The ideal candidate will have a deep understanding of distributed systems, microservices, and cloud-based architectures, with a proven track record in handling production issues at scale. You will collaborate closely with the AI Lead and Frontend Lead to ensure seamless integration of backend services, AI/ML pipelines, and front-end functionalities, thereby

delivering a robust, secure, and feature-rich experience to our customers.

Key Responsibilities

1. System Architecture & Design

o Define and implement the overall backend architecture for multi-tenant SaaS applications, ensuring scalability, high availability, security, and compliance.

o Design microservices and RESTful/GraphQL APIs and Websockets in alignment with front-end and AI requirements.

o Establish design patterns and best practices for code modularity, performance optimization, and scalability.

2. Scalability & Performance

o Identify performance bottlenecks and oversee optimization strategies (caching, load balancing, message queues, etc.).

o Implement and maintain monitoring/observability solutions (e.g., Prometheus, Grafana, Loki, ELK Stack) to ensure real-time system health insights and rapid incident response.

o Establish performance baselines, conduct stress tests, and implement disaster recovery strategies.

3. Production Stability & Issue Resolution

o Proactively monitor production environments, anticipating potential failures and bottlenecks.

o Triage, diagnose, and resolve production incidents with minimal downtime, using robust logging, tracing, and on-call rotation strategies.

o Drive root cause analysis and post-mortems for production incidents, implementing preventative measures.

4. Collaboration & Cross-Functional Coordination

o Work closely with the AI team to integrate MLOps pipelines, ensuring smooth data flow and secure model deployment.

o Collaborate with the Frontend team to provide well-defined API contracts, enabling efficient UI/UX development.

o Partner with DevOps to define CI/CD pipelines, container orchestration (Docker, Kubernetes), and infrastructure-as-code (Terraform, CloudFormation) practices.

5. Team Leadership & Mentorship

o Lead and mentor a team of backend developers, setting clear goals and providing guidance on best practices.

o Perform code reviews to ensure high code quality, maintainability, and adherence to design standards.

o Foster a culture of continuous learning, encouraging the adoption of new technologies, tools, and methodologies.

6. Security & Compliance

o Implement secure coding practices and follow industry standards (e.g., OWASP Top 10).

o Work with compliance teams to ensure data privacy and regulatory requirements (HIPAA) are met.

o Oversee authentication/authorization frameworks (OAuth, JWT, etc.) and data encryption at rest and in transit(Encryption, SSL/TLS).

7. Documentation

o Maintain comprehensive technical documentation, including architecture diagrams, APIs, database schemas, and operational runbooks.

o Facilitate knowledge sharing sessions and handovers to ensure smooth onboarding of new team members.

Qualifications

 Education:

o Bachelor’s or Master’s degree in Computer Science, Engineering, or a related

field.

 Experience:

o 8+ years of experience in backend or full-stack development, with 3+ years in a technical lead or architect role.

o Demonstrated history of leading and delivering large-scale, distributed systems in production environments.

 Technical Expertise:

o Languages & Frameworks: Proficiency in modern backend languages (e.g., Python) and associated frameworks (Django/FastAPI, etc.).

o Database Systems: Strong knowledge of both SQL (MySQL, PostgreSQL) and NoSQL (MongoDB, Cassandra) databases, including data modeling and query optimization.

o Microservices & Architecture: Hands-on experience with microservices,containerization (Docker, Kubernetes), and service mesh architectures.

o Cloud Platforms: Experience with cloud providers like AWS and Azure for deployment, scaling, and monitoring.

o CI/CD & DevOps: Familiarity with CI/CD pipelines, Git workflows,infrastructure-as-code, and automated testing.

o Monitoring & Observability: Proficiency with tools like Prometheus, Grafana, ELK Stack, Loki for real-time monitoring and log analysis.

 Soft Skills:

o Leadership: Ability to lead teams, manage conflict, and drive a vision for the backend architecture.

o Communication: Strong written and verbal communication skills to coordinate with cross-functional teams (AI, Frontend, QA, Product).

o Problem-Solving: Analytical mindset for troubleshooting complex issues in high- pressure environments.

o Collaboration: Demonstrated capability to work seamlessly across multiple teams and stakeholders.

Preferred Qualifications

 Exposure to AI/ML Integrations: Understanding of MLOps practices for model deployment and monitoring.

 Knowledge of Healthcare or Highly Regulated Industries: Familiarity with HIPAA, or similar compliance standards.

 Certification(s) in AWS, Azure, or GCP.

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.

Job Description:-

Designation : Python Developer

Location : Indore | WFO

Skills : Python, Django, Flask, Numpy, Panda,  RESTful APIs, AWS.

Python Developer Responsibilities:- 

1. Coordinating with development teams to determine application requirements.

2. Writing scalable code using Python programming language.

3. Testing and debugging applications.

4. Developing back-end components.

5. Integrating user-facing elements using server-side logic.

6. Assessing and prioritizing client feature requests.

7. Integrating data storage solutions.

8. Coordinating with front-end developers.

9. Reprogramming existing databases to improve functionality.

10. Developing digital tools to monitor online traffic.

Python Developer Requirements:-

1. Bachelor's degree in computer science, computer engineering, or related field.

2. At Least 3+ years of experience as a Python developer.

3. Expert knowledge of Python and related frameworks including Django and Flask.

4. A deep understanding and multi-process architecture and the threading limitations of Python.

5. Familiarity with server-side templating languages including Jinja 2 and Mako.

6. Ability to integrate multiple data sources into a single system.

7. Familiarity with testing tools.

8. Ability to collaborate on projects and work independently when required.

Skills - Python, Django, Flask, Numpy, Panda,  RESTful APIs, AWS.

We are looking for an experienced top-notch Python developer to grow with our dev team. As a Python Developer, you will be involved from conception to completion with projects that are technologically sound. Role and Responsibilities

• Expert in Python, with knowledge of at least one Python web framework {such as Django, Flask, etc}

• Familiarity with some ORM (Object Relational Mapper) libraries

• Able to integrate multiple data sources and databases into one system

• Understanding of the threading limitations of Python, and multi-process architecture

• Good understanding of server-side templating languages

• Basic understanding of front-end technologies, such as JavaScript, HTML5, and CSS3

• Understanding of accessibility and security compliance • Knowledge of user authentication and authorization between multiple systems, servers, and environments

• Understanding of fundamental design principles behind a scalable application

• Familiarity with event-driven programming in Python

• Able to create database schemas that represent and support business processes

• Strong unit test and debugging skills

• Develop and adhere to best-practices for developing applications

• Continuously contribute to team performance improvement and collaboration

• Work and collaborate with the rest of the engineering team

• Work with product team and graphic designers Technical Skills

• Experience in Python and frameworks such as Django, Flask, etc

• Ability to solve problems creatively and effectively

• Git knowledge is a plus

• Experience working in an Agile/Scrum development process

• Team player

• Good time-management skills

• Great interpersonal and communication skills

Qualifications

• B.S Degree in Computer Science

• 4-6 years overall IT industry experience

• discussing clients’ requirements and proposed solutions with a senior developer (for developers at mid-skill level and below)
• writing and testing code
• collaborating with other developers
• using development tools (see below)

Development tools are used by software developers to write and test code, often as a team. Common development tools include:

• integrated development environments (eg Eclipse, IntelliJ): for writing and editing code
• source control management (eg Git, SVN, Mercurial): to enable teams to work together to manage changes to source code
• issue management systems (eg Jira): for managing a list of issues or improvements
• test driven development: for writing code to test your code