Staff Security Engineer at Lightspark

Los Angeles, California, United States

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$230,000 – $270,000Compensation

Senior (5 to 8 years), Expert & Leadership (9+ years)Experience Level

Full TimeJob Type

UnknownVisa

Fintech, Blockchain, Cryptocurrency, PaymentsIndustries

Requirements

8+ years of security engineering experience spanning application security, infrastructure/cloud security, and secure software development
Strong background in software engineering with proficiency in at least one programming/scripting language (e.g., Python, Go, Java, C/C++)
Deep knowledge of security fundamentals: secure coding, encryption, authentication, access control, and vulnerability management
Experience leading technical application and infrastructure security initiatives, blockchain/crypto security is a plus
Familiarity with industry standards/frameworks (e.g., OWASP, NIST, ISO 27001) and their application in blockchain/financial ecosystems
Excellent problem-solving, analytical, and communication skills; able to operate as both a hands-on engineer and a technical leader
A CS degree or equivalent background is welcome, but diverse paths—especially from non-traditional or crypto-native security backgrounds—are valued

Responsibilities

Lead technical security strategy: Shape the security vision across application, infrastructure, and crypto domains, balancing innovation and a fast development culture with pragmatic risk management
Build secure-by-default frameworks: Design and implement tools, libraries, and systems that embed security into products and infrastructure from the ground up
Perform deep technical reviews: Audit designs and codebases (with emphasis on blockchain/crypto components), identify vulnerabilities, and guide teams in secure design and development
Mentor and guide teams: Provide technical leadership and mentorship on secure development practices, encryption, authentication, access control, and crypto-specific security
Strengthen detection & response: Partner with operations teams to enhance monitoring, incident investigation, and response—particularly around blockchain and code-level threats
Champion security culture: Lead training and awareness programs to up-level security knowledge across engineering, with a focus on blockchain and secure coding
Stay ahead of threats: Track emerging risks, attack vectors, and technologies in both traditional and crypto ecosystems, recommending strategies for continuous improvement

Skills

Blockchain

Cryptography

Encryption

Authentication

Access Control

Security Audits

Application Security

Infrastructure Security

Secure Development

Vulnerability Assessment

Detection Engineering

Bitcoin

Lightspark

Facilitates Bitcoin transactions via API and SDKs

About Lightspark

Lightspark focuses on facilitating Bitcoin transactions for businesses by providing an API and Software Development Kits (SDKs) that integrate with the Lightning Network. This technology allows for faster and cheaper cross-border payments by identifying efficient routes for transactions. Unlike competitors, Lightspark's service-based model enables businesses to leverage Bitcoin without needing deep technical expertise. The goal is to streamline payment processes, making them more efficient and cost-effective.

Los Angeles, CaliforniaHeadquarters

2022Year Founded

$1.3MTotal Funding

SEEDCompany Stage

Fintech, Crypto & Web3Industries

51-200Employees

Risks

Increased competition from fintech companies like Strike and OpenNode.

Regulatory scrutiny in the US and EU could impact cryptocurrency transactions.

Technological vulnerabilities in the Lightning Network may affect Lightspark's reputation.

Differentiation

Lightspark offers a robust API and SDKs for Bitcoin integration on the Lightning Network.

The company provides a dashboard for tracking and managing Bitcoin transactions efficiently.

Lightspark's Universal Money Address (UMA) enhances global payment solutions for businesses.

Upsides

Partnerships with Bitso and Foxbit expand Lightspark's reach in Latin America.

Introduction of Spark and UMA boosts Lightspark's product offerings and market appeal.

Strategic expansion into Africa with Yellow Card highlights growth in emerging markets.

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