Backend SDE 1 & 2 - Cybersecurity

Founded in 2015, headquartered at Singapore, we are proud to say that we’ve grown at a frenetic pace and have been able to achieve some accolades along the way, including:

CloudSEK’s Product Suite:

• CloudSEK
  XVigil constantly maps a customer’s digital assets, identifies threats and enriches them with cyber intelligence, and then provides workflows to manage and remediate all identified threats including takedown support.

• A powerful Attack Surface Monitoring
  tool that gives visibility and intelligence on customers’ attack surfaces. CloudSEK's
  BeVigil
  uses a combination of Mobile, Web, Network and Encryption Scanners to map and protect known and unknown assets.

• CloudSEK’s Contextual AI SVigil identifies software supply chain risks by monitoring Software, Cloud Services, and third-party dependencies.

Key Milestones:

• 2016: Launched our first product.

• 2018: Secured Pre-series A funding.

• 2019: Expanded operations to India, Southeast Asia, and the Americas.

• 2020: Won the NASSCOM-DSCI Excellence Award for Security Product Company of the Year.

• 2021: Raised $7M in Series A funding led by MassMutual Ventures.

• Awards & Recognition: Won NetApp Excellerator's "Best Growth Strategy Award," CloudSEK XVigil joined NVIDIA Inception Program, and won the NASSCOM Emerge 50 Cybersecurity Award.

• 2025: Secured $19 million in funding led by Tenacity Ventures, Commvault.

• What You’ll Work On

  • Develop and maintain scalable backend services using Python (and optionally Golang).

  • Work on data pipelines and system components involving Kafka, Airflow, and PySpark.

  • Write robust code that interacts with SQL/NoSQL databases like PostgreSQL and MongoDB.

  • Build internal tools and services, participate in architecture reviews, and own deployments.

  • Collaborate closely with product, security research, and frontend teams.

  What We’re Looking For

  • Solid understanding of how Python executes code (interpreted vs compiled concepts).

  • Strong grasp of concurrency, threading, multiprocessing, and the Global Interpreter Lock (GIL).

  • Experience building web applications using Django or similar frameworks with an understanding of request-response lifecycle and ORM workflows.

  • Good understanding of HTTP, TCP/IP, default ports (80/443/22), stateless protocols, and network-level fundamentals.

  • Awareness of basic security principles, including encryption vs hashing and their real-world use cases.

  • Familiarity with system design concepts like sharding, consistent hashing, and load balancing strategies.

  • Bonus: Proficiency in Golang, understanding of goroutines, defer, and waitgroups.

  • Bonus: Experience with cloud infrastructure, Docker, Kubernetes, and CI/CD pipelines.

Benefits of Joining CloudSEK

We provide an environment where you can develop and enhance your skills while delivering meaningful work that matters. You’ll be rewarded a competitive salary as well as a full spectrum of generous perks and incentives which include:

• Flexible working hours.

• Food, unlimited snacks and drinks are all available while at office.

And, the finest part is yet to come! Every now and then we ensure to unwind and have a good time together, which involves games, fun, and soulful music. Feel free to show off your artistic side here!