Security Engineer, Celestia
Fibre optic performance for millisecond markets
Job no longer available
Fibre optic performance for millisecond markets
21-100 employees
Job no longer available
21-100 employees
Company mission
To enable fibre optic performance with millisecond latency.
Role
Who you are
- You are a security engineer with at least 2+ years of experience
- You have a passion for thoroughly reviewing code written in Go, Rust, or other systems languages as well as examining technical documentation with a focus on security
- Either experience with Blockchain or distributed systems security
- Strong problem-solving and communication skills
- Experience with open source software development practices and tools
- You are self-driven and able to work independently as well as part of a team
Desirable
- Solid experience with blockchain technology and knowledge about modular blockchain networks
- A strong understanding of cryptography, network security, and application security
- Experience with libp2p, IPFS or comparable technologies
- Experience with the Cosmos-SDK modules and applications or comparable frameworks
- Understanding of Tendermint or other consensus engines
- Experience with leading small remote-first teams
What the job involves
- Audit and understand critical code paths in the existing implementation as well as review pull requests from a security perspective
- Define and maintain security policies, infrastructure such as incident response policies, and bug bounty programs across all Celestia software repositories to react appropriately on incidents and to prevent security issues in the first place
- Triage security-relevant issues in coordination with the team and coordinate between external auditors, bug bounty reports, and the engineering team
- Collaborate with the engineering team to design and implement secure software development practices
- Analyze threats, vulnerabilities, and incidents, and implement appropriate remediation measures in coordination with the team
Our take
Blockchains have traditionally been built as "monolithic" systems, where execution, consensus and data availability are bundled together in a single chain. That model, used by networks like Bitcoin and Ethereum, has proven secure but difficult to scale without trade-offs. Celestia takes a different approach. Rather than trying to be another all-in-one chain, it focuses purely on data availability and consensus, allowing developers to plug in their own execution environments. Simply put, it provides the foundation layer so others can build custom blockchains on top without starting from scratch.
Since launching its mainnet, Celestia has moved from theory to infrastructure and now acts as a live data availability layer for rollups and other modular chains, positioning itself as core plumbing for the next generation of Web3 applications. By separating responsibilities across layers, it aims to make blockchains more scalable and flexible, while still maintaining decentralisation. So instead of competing directly with major chains on transaction feeds alone, Celestia competes on architecture, offering builders a toolkit rather than a finished product.
The bet is that the future of crypto won't be one dominant chain, but many specialized ones. If that modular vision continues to gain traction, Celestia could become a foundational layer powering dozens (or hundreds) of networks behind the scenes. The challenge now isn't proving the concept, but driving sustained adoption in an increasingly competitive data availability market.
Kirsty
Company Specialist at Welcome to the Jungle
Company
Funding (last 2 of 3 rounds)
Sep 2024
$100m
LATE VC
Oct 2022
$55m
SERIES B
Total funding: $156.5m
Company benefits
- Employment benefits
- 4 weeks annual vaction
- Meaningful long-term compensation package
- Flexible and remote work environment
Leadership
Mustafa Al-Bassam
(Co-Founder & CEO)Previously an Advisor at Nym and Secure Trading. Prior to this was co-founder and Researcher at Chainspace until its acquisition by Facebook.
Ismail Khoffi
(Co-Founder & CTO)Previously a Senior Software Engineer at Informal Systems and Interchain Foundation. Before this, they were an External Evaluation Expert for the European Commission.
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