Full-Time

Senior Backend Engineer

Payments

Confirmed live in the last 24 hours

Lightspark

Lightspark

51-200 employees

Facilitates Bitcoin transactions via API and SDKs

Fintech

Senior

Culver City, CA, USA

Category
Backend Engineering
Software Engineering
Required Skills
Kubernetes
Rust
Python
Java
Docker
AWS
Go
C/C++
Requirements
  • 7+ years of backend engineering experience, with a proven track record of building and maintaining scalable backend systems.
  • Strong proficiency in one or more backend programming languages (e.g., Python, Go, Java, Rust, C++) and experience with modern software development practices.
  • Experience working with distributed systems and large-scale applications, with a focus on reliability and performance optimization.
  • Experience with payments systems or financial infrastructure (e.g., ledgers, transaction processing, bank integrations)
  • Experience with cloud-based technologies and infrastructure tools such as Docker, Kubernetes, AWS, or other cloud platforms.
  • Ability to lead technical projects from design through deployment, collaborating with team members and cross-functional teams to deliver high-quality solutions.
  • Strong problem-solving skills and the ability to troubleshoot complex issues in production systems.
  • Excellent communication skills, with the ability to work effectively in a collaborative environment and explain technical decisions to non-engineering stakeholders.
  • A passion for learning new technologies and continuously improving engineering processes.
Responsibilities
  • Designing and developing scalable backend services that integrate Lightspark with traditional financial systems, including payments infrastructure, bank integrations, and transaction processing.
  • Collaborating with Product Managers, Designers, and other Engineers to build features that meet the evolving needs of our users.
  • Contributing to the architecture and design of backend systems, ensuring reliability, security, and maintainability as our services scale.
  • Writing high-quality, well-tested code that is maintainable and performant.
  • Leading technical discussions and participating in code reviews to ensure engineering best practices are followed across the team.
  • Taking ownership of key backend components, troubleshooting production issues, and working to improve system performance and stability.
  • Building tools and frameworks to monitor, analyze, and improve system performance at scale.
  • Proactively identifying opportunities for system optimization and performance improvements as we scale our platform to support more users.
  • Mentoring junior engineers, providing feedback, and sharing best practices to help the team grow and improve.

Lightspark operates in the digital currency market, focusing on facilitating Bitcoin transactions. The company offers an API and Software Development Kits (SDKs) that enable businesses to integrate Bitcoin payments into their digital wallets or applications using the Lightning Network, which is designed to enhance transaction speed and reduce costs, especially for cross-border payments. Lightspark's technology optimizes payment routes to ensure low-cost and low-latency transactions, while also providing a dashboard for transaction management and a secure environment for data protection. Unlike many competitors, Lightspark targets businesses that lack deep technical expertise, allowing them to leverage Bitcoin transactions without extensive knowledge. The goal of Lightspark is to make Bitcoin transactions more accessible and efficient for businesses, particularly those engaged in international payments.

Company Stage

Seed

Total Funding

$1.3M

Headquarters

Los Angeles, California

Founded

2022

Growth & Insights
Headcount

6 month growth

28%

1 year growth

52%

2 year growth

300%
Simplify Jobs

Simplify's Take

What believers are saying

  • Increased adoption of the Lightning Network by major institutions boosts Lightspark's market opportunities.
  • Partnerships with Foxbit and BtcTurk expand Lightspark's presence in new markets.
  • The launch of Spark positions Lightspark to capitalize on off-chain Bitcoin transactions.

What critics are saying

  • Increased competition from fintech companies could erode Lightspark's market share.
  • Regulatory scrutiny on cryptocurrency transactions may impact Lightspark's operations.

What makes Lightspark unique

  • 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 technology ensures low-cost, low-latency payments with optimal liquidity routes.

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