Python Developer

FactWise is a fully funded, early-stage startup building b2b SaaS for a global SMB client base. Our team has alumni from MIT, Stanford, GeorgiaTech, UCL, the IITs, VJTI, Amazon and McKinsey, and currently comprises frontend, backend, full stack developers, UI/UX engineers, product managers, data scientist, and Ops, HR, Marketing. We'd love to get to know you better!

As a member of the development group, you will be primarily responsible for the design, development, and maintenance of the product:  

• Help define and create full stack architecture and deployment using React- Django-AWS in an agile environment with lots of ownership and active mentoring. 
• Work with the Product and Design teams to build new features to solve business problems and fill business needs 
• Participate in code reviews to create robust and maintainable code 
• Work in an agile environment where quick iterations and good feedback are a way of life 
• Interact with other stakeholders for requirement, design discussions and for adoption of new features 
• Communicate and coordinate with our support and professional services teams to solve customer issues. 
• Help scale our platform as we expand our product across various markets and verticals globally. 

As a young startup, we are hoping to be joined by self-starting, hardworking, passionate individuals who are committed to delivering their best, who can grow into future leaders of FactWise. 

Job Title: Senior Python Developer – Product Engineering

Location: Pune, India

Experience Required: 3 to 7 Years

Employment Type: Full-time

Employment Agreement: Minimum 3 years (At the completion of 3 years, One Time Commitment Bonus will be applicable based on performance)

🏢 About Our Client

Our client is a leading enterprise cybersecurity company offering an integrated platform for Digital Rights Management (DRM), Enterprise File Sync and Share (EFSS), and Content-Aware Data Protection (CDP). With patented technologies for secure file sharing, endpoint encryption, and real-time policy enforcement, helps organizations maintain control over sensitive data — even after it leaves the enterprise perimeter.

🎯 Role Overview

We are looking for a skilled Python Developer with a strong product mindset and experience building scalable, secure, and performance-critical systems. You will join our core engineering team to enhance backend services powering DRM enforcement, file tracking, audit logging, and file sync engines.

This is a hands-on role for someone who thrives in a product-first, security-driven environment and wants to build technologies that handle terabytes of enterprise data across thousands of endpoints.

🛠️ Key Responsibilities

●      Develop and enhance server-side services for DRM policy enforcement, file synchronization, data leak protection, and endpoint telemetry.

●      Build Python-based backend APIs and services that interact with file systems, agent software, and enterprise infrastructure.

●      Work on delta sync, file versioning, audit trails, and secure content preview/rendering services.

●      Implement secure file handling, encryption workflows, and token-based access controls across modules.

●      Collaborate with DevOps to optimize scalability, performance, and availability of core services across hybrid deployments (on-prem/cloud).

●      Debug and maintain production-level services; drive incident resolution and performance optimization.

●      Integrate with 3rd-party platforms such as LDAP, AD, DLP, CASB, and SIEM systems.

●      Participate in code reviews, architecture planning, and mentoring junior developers.

📌 Required Skills & Experience

●      3+ years of professional experience with Python 3.x, preferably in enterprise or security domains.

●      Strong understanding of multithreading, file I/O, inter-process communication, and low-level system APIs.

●      Expertise in building RESTful APIs, schedulers, workers (Celery), and microservices.

●      Solid experience with encryption libraries (OpenSSL, cryptography.io) and secure coding practices.

●      Hands-on experience with PostgreSQL, Redis, SQLite, or other transactional and cache stores.

●      Familiarity with Linux internals, filesystem hooks, journaling/logging systems, and OS-level operations.

●      Experience with source control (Git), containerization (Docker/K8s), and CI/CD.

●      Proven ability to write clean, modular, testable, and scalable code for production environments.

➕ Preferred/Bonus Skills

●      Experience in EFSS, DRM, endpoint DLP, or enterprise content security platforms.

●      Knowledge of file diffing algorithms (rsync, delta encoding) or document watermarking.

●      Prior experience with agent-based software (Windows/Linux), desktop sync tools, or version control systems.

●      Exposure to compliance frameworks (e.g., DPDP Act, GDPR, RBI-CSF) is a plus.

🌟 What We Offer

●      Work on a patented and mission-critical enterprise cybersecurity platform

●      Join a fast-paced team focused on innovation, security, and customer success

●      Hybrid work flexibility with competitive compensation and growth opportunities

●      Direct impact on product roadmap, architecture, and IP development

Looking for Immediate joiners Bangalore location(3-9years)

Key responsibilities:

• Understand all requirements, Design, Develop and implement features, complying with engineering and regulatory standards and procedures for charging stations.
• Create multiple concepts, evaluate, and implement the optimal one.
• Develop and maintain product’s design integrity with good knowledge of software system architecture and design.
• Apply problem-solving techniques and guide team towards arriving at solutions.
• Work with cross functional team from Concept prototyping to Launch & thereafter.
• Guide team towards creation and handling of all design and development related processes and documents like, defining requirements, high level design, low level design, DFMEA, DF’X’, Interface sign off, RCA, etc.

Key requirements

• A Bachelor/ master’s degree in E&E/ECE engineering from premier institute
• 5 years+ product development experience on Linux based systems, with full lifecycle experience for atleast 2 industry deployed products.
• Software Design and Architecture experience on Linux platforms
• Interfacing with SaaS via network or REST APIs 
• Knowledge of CAN, RS485/Modbus protocols, Kafka, Distributed Messaging 
• C++ with STL, Linux system programming, scripting, network/sockets programming, strong in UDP/TCP networking, libcurl + HTTP(s)
• Knowledge of Bluetooth/BLE, Elastic Search + Logstash, Java performance tuning 
• Knowledge of security-based Threat Modelling Design & Mitigation, TLS/SSL, Docker + Docker networking, Python + node.js + WebSocket’s, HTML5, JavaScript. 
• Excellent communication, leadership, and problem-solving skills
• Ability to work in a fast-paced and dynamic environment.

Job Title: Cybersecurity Agent Developer

Location: Bengaluru, India

Experience: 7+ Years

Employment Type: Full-time

About the Role:

We are seeking a highly skilled Cybersecurity Agent Developer with deep expertise in C/C++ and Golang or Rust to build and optimize high-performance security agents for Windows, Linux, and macOS platforms. This role requires a strong background in low-level system programming, performance tuning, and security-centric design to ensure effective monitoring, threat detection, and system protection across diverse environments.

Key Responsibilities:

• Design, develop, and maintain cross-platform endpoint security agents.
• Optimize agent performance to ensure minimal system overhead and real-time responsiveness.
• Implement system-level hooks and monitoring components including:
• Process monitoring
• File system and network activity tracking
• System telemetry collection
• Work with kernel-level APIs and frameworks, such as:
• ETW, WFP, WMI, MiniFilter (Windows)
• eBPF, auditd, fanotify, netfilter (Linux)
• EndpointSecurity framework, XPC, System Extensions (macOS)
• Build robust, secure inter-process communication (IPC) and data serialization mechanisms.
• Integrate agents with cloud-based security platforms via REST APIs, gRPC, and TLS.
• Collaborate with internal teams (threat intelligence, detection, response) to evolve agent capabilities.
• Perform in-depth debugging, profiling, and optimization using industry-standard tools.

Required Skills & Experience:

Core Programming:

• Strong proficiency in C/C++ and either Golang or Rust
• Solid experience in multi-threaded and asynchronous programming

Platform Expertise:

• Proven experience developing for Windows, Linux, and macOS
• Deep knowledge of system-level programming, including:
• Windows: WinAPI, ETW, WFP, WMI, MiniFilter
• Linux: eBPF, auditd, fanotify, netfilter
• macOS: EndpointSecurity framework, XPC, System Extensions

Security & Networking:

• Understanding of secure IPC, TLS, gRPC, and secure coding practices
• Familiarity with system hardening and secure memory management

Debugging & Optimization Tools:

• Proficient in using tools like GDB, LLDB, Valgrind, Perf, Wireshark, Sysinternals Suite

Version Control:

• Strong experience with Git (GitHub, GitLab)

Preferred Qualifications:

• Experience with cybersecurity frameworks like MITRE ATT&CK, Sysmon, YARA, Suricata
• Hands-on exposure to kernel/driver development
• Familiarity with EDR/XDR, sandboxing, and SIEM integrations
• Understanding of malware analysis and threat detection techniques
• Exposure to container security and cloud-native security agent development

• Experience in Python
• Experience in any Framework like Django, and Flask.
• Primary and Secondary skills - Python, OOPs and Data Structure
• Good understanding of Rest Api 
• Familiarity with event-driven programming in Python 
• Good analytical and troubleshooting skills

Roles and Responsibilities

Key Responsibilities: 

• Rewrite existing APIs in NodeJS. 
• Remodel the APIs into Micro services-based architecture. 
• Implement a caching layer wherever possible. 
• Optimize the API for high performance and scalability. 
• Write unit tests for API Testing.
• Automate the code testing and deployment process.

Skills Required: 

• At least 2 years of experience developing Backends using NodeJS — should be well versed with its asynchronous nature & event loop, and know its quirks and workarounds. 
• Excellent hands-on experience using MySQL or any other SQL Database. 
• Good knowledge of MongoDB or any other NoSQL Database. 
• Good knowledge of Redis, its data types, and their use cases. 
• Experience with graph-based databases like GraphQL and Neo4j. 
• Experience developing and deploying REST APIs. 
• Good knowledge of Unit Testing and available Test Frameworks. 
• Good understanding of advanced JS libraries and frameworks. 
• Experience with Web sockets, Service Workers, and Web Push Notifications. 
• Familiar with NodeJS profiling tools. 
• Proficient understanding of code versioning tools such as Git. 
• Good knowledge of creating and maintaining DevOps infrastructure on cloud platforms. 
• Should be a fast learner and a go-getter — without any fear of trying out new things Preferences. 
• Experience building a large scale social or location-based app.