Blockchain Developer - Cryptography

Job Title : Senior Python Developer – Product Engineering

Experience : 5 to 8 Years

Location : Pune, India (Hybrid – 3-4 days WFO, 1-2 days WFH)

Employment Type : Full-time

Commitment : Minimum 3 years (with end-of-term bonus)

Openings : 2 positions

• Junior : 3 to 5 Years
• Senior : 5 to 8 Years

Mandatory Skills : Python 3.x, REST APIs, multithreading, Celery, encryption (OpenSSL/cryptography.io), PostgreSQL/Redis, Docker/K8s, secure coding

Nice to Have : Experience with EFSS/DRM/DLP platforms, delta sync, file systems, LDAP/AD/SIEM integrations

🎯 Roles & Responsibilities :

• Design and develop backend services for DRM enforcement, file synchronization, and endpoint telemetry.
• Build scalable Python-based APIs interacting with file systems, agents, and enterprise infra.
• Implement encryption workflows, secure file handling, delta sync, and file versioning.
• Integrate with 3rd-party platforms: LDAP, AD, DLP, CASB, SIEM.
• Collaborate with DevOps to ensure high availability and performance of hybrid deployments.
• Participate in code reviews, architectural discussions, and mentor junior developers.
• Troubleshoot production issues and continuously optimize performance.

✅ Required Skills :

• 5 to 8 years of hands-on experience in Python 3.x development.
• Expertise in REST APIs, Celery, multithreading, and file I/O.
• Proficient in encryption libraries (OpenSSL, cryptography.io) and secure coding.
• Experience with PostgreSQL, Redis, SQLite, and Linux internals.
• Strong command over Docker, Kubernetes, CI/CD, and Git workflows.
• Ability to write clean, testable, and scalable code in production environments.

➕ Preferred Skills :

• Background in DRM, EFSS, DLP, or enterprise security platforms.
• Familiarity with file diffing, watermarking, or agent-based tools.
• Knowledge of compliance frameworks (GDPR, DPDP, RBI-CSF) is a plus.

Job Description :

Position Name : Haskell Developer

Experience : 3+ Years

Location : Gurgaon

Working Days : 6 Days (Monday to Saturday)

Role Description :

This is a full-time on-site role located in Gurugram for a Haskell Developer. The Haskell Developer will be responsible for the development and implementation of efficient, high-performance, and scalable software solutions, and will have the opportunity to work on cutting-edge blockchain-based projects in collaboration with cross-functional teams.

Qualifications :

• 3-5 Years of Haskell experience is required.

• 3-5 Years of Web3 experience is a plus.

• Worked on proven projects of Blockchain.

• Strong proficiency in Haskell, and experience with other functional programming languages.

• Experience with Cryptography, Blockchain, Consensus algorithm and Distributed Systems.

• Proven experience in web frameworks such as Servant, and with databases such as Level DB.

• Strong knowledge of Computer Science fundamentals such as Algorithms, Data Structures, and Complexity Analysis.

• Experience with software development methodologies, such as Agile or Scrum.

• Bachelor's degree or higher in Computer Science, or a related field.

• Excellent communication skills, and ability to work in a collaborative team environment.

• Passion for Blockchain and Cryptocurrency, and willingness to learn and explore new technologies.

1. Bachelor’s degree in Computer Science, Engineering, or related field.
2. 3-5 years of professional experience in web development with a strong focus on JavaScript stack technologies.
3. Proven experience in integrating blockchain technology into web applications, with a deep understanding of blockchain protocols, smart contracts, and decentralized applications (dApps).
4. Proficiency in multisignature, multiparty computation and 3rd party Node provider integration
5. Experience with public blockchain platforms such as Bitcoin, Ethereum, etc.
6. Solid understanding of RESTful APIs and web services.
7. Strong problem-solving skills and the ability to troubleshoot complex issues.
8. Excellent communication and collaboration skills.
9. Ability to thrive in a fast-paced, agile environment and adapt to changing priorities.
10. Experience with continuous integration and deployment (CI/CD) pipelines is a plus.
11. Experience in setting up Bitcoin core, and Geth node is a plus

F5 is looking for a Sr. Software Engineer with experience in building FIPS-ready cryptography-based security solutions at scale. You will participate in the design and implementation of F5's Edge Computing platform that is used to deploy global, scalable and secure applications. Your work includes, but not limited to, design, implementation, deployment, operational management, and debugging of security services of F5's platform.

Responsibilities:

• Collaborate with architects and business leaders to understand the requirements for providing FIPS-ready cryptography-based security services for F5's platform, design solutions, and implement them
• You will develop software for identity related security foundations of Volterra platform - Identity Management, Key Management, Secure Bootstrapping, Authentication, Authorization, Secrets Management, etc.
• You will perform necessary compliance tasks – including building and executing the test suites – required for making systems and libraries ready for FIPS
• You will vet various open source and closed source technologies, components, libraries, tools etc. and help build a highly available, highly scalable and easily manageable system
• Demonstrate technical leadership in multiple domain areas, providing mentorship to other team members
• Demonstrate leadership by taking responsibility and ownership of software components and deliver a complete product satisfying functional, scale, performance and manageability requirements
• Hands-on coding in multiple languages while considering performance, scalability, maintainability, and flexibility

Minimum Qualifications:

• BS/MS degree in Computer Science or equivalent with 6+ years of software engineering and development experience
• Hands on experience with multiple computer programming languages such as Golang (must), C++, Python, Java
• Hands-on experience with FIPS 140-2 and CMVP
• Ability to implement all phases of a development cycle for a software product from understanding requirements, going through design, development and deploy phases
• Good understanding of complexities and security challenges in large-scale distributed systems
• Good understanding of security concepts like IPSec/TLS, PKI, SAML/OAuth, Key management, etc.
• Experience with Cloud Computing platforms (e.g. Amazon AWS, Microsoft Azure, Google Compute etc.) is a plus
• Working knowledge of Virtualization technologies like KVM, Docker etc.
• Working knowledge of Cloud orchestration systems such as Kubernetes, Openstack etc.
• Excellent written and verbal communication skills
• Strong interpersonal, team building, and mentoring skills

Job Description:

• Programming and optimizing smart contracts

• Design, research and develop blockchain-based solutions

• Developing decentralized high-performance systems

• Building reliable and fast data storages

• Security audits of third-party and internal solutions

• Establishing policies and procedures that produce secure, high-quality software

• Write and review technical proposals

• Improve engineering standards, tooling, and processes

• Coding with concurrency, efficiency and scalability as primary motive

• Document systems, build runbooks, and automate those processes

• Being hands on by writing, testing, and deploying high-performance networking code

• Rigor on clean code, unit testing, code coverage and best practices

• Developing infrastructure software

Required qualifications:

4+ years experience in JAVA, 1+ year of experience in Blockchain, willingness to learn on the go, ability to write clean code, a strong sense of responsibility.

Tech Stack:

JAVA, git, linux, bash, ability to work with Docker.

Nice to have:

cryptography and system software development experience, understanding of design patterns, understanding of operating systems and networks, ability to design algorithms and mathematical models.

• 0-3 application development experience in solution building on Blockchain technology.
• Solid understanding of and experience in blockchain / distributed ledger technologies familiarity with platforms, such as Ethereum and Hyperledger.
• Any additional expertise with Python, containerization (Docker) and additional Cloud exposure also a huge plus
• Security Architecture / Cryptography is a plus.
• Any additional expertise with Python, containerization (Docker) and additional Cloud exposure also a huge plus.
• Experience on development tools such as Hyperledger Fabric/Sawtooth,Geth , Composer, Solidity Remix Functional
• Basic understanding of Web applications architecture and protocols.