The Senior Software Engineer for the Core OS Platform will work on hardware products at Square, collaborating with various teams throughout the product lifecycle. Responsibilities include project management, software design participation, mentoring engineers, and overseeing software development phases from requirements to production.

Block

Senior Software Engineer (Backend), Developer Platform Growth

16 Hours Ago

8 Locations

Remote

Hybrid

12,000 Employees

Senior level

Apply

12,000 Employees

Senior level

Blockchain • eCommerce • Fintech • Payments • Software • Financial Services • Cryptocurrency

As a Senior Backend Engineer on the Developer Platform Growth team at Square, you will design and maintain developer-facing services and tools, collaborate with cross-functional teams, and contribute to the platform's growth strategy. Your role will involve enhancing developer integration experiences and ensuring the reliability of services that support external developers and merchants.

Block

Senior Software Engineer (Android) Food & Beverage, Back of House

16 Hours Ago

8 Locations

Remote

Hybrid

12,000 Employees

Senior level

Apply

12,000 Employees

Senior level

Blockchain • eCommerce • Fintech • Payments • Software • Financial Services • Cryptocurrency

As a Senior Android Engineer, you will design and build scalable client software, lead cross-functional initiatives, collaborate with various teams, mentor other engineers, and contribute throughout the product development lifecycle, focusing on enhancing tools for the food and beverage hospitality industry.

Block

Senior Software Engineer, Accounts & Security

16 Hours Ago

8 Locations

Remote

Hybrid

12,000 Employees

Senior level

Apply

12,000 Employees

Senior level

Blockchain • eCommerce • Fintech • Payments • Software • Financial Services • Cryptocurrency

As a Senior Software Engineer on the Accounts & Security team, you will design and develop authentication methods, ensuring scalability and reliability. You'll lead project delivery, manage risks, collaborate on architectural strategies, and maintain code quality across systems, addressing technical challenges.

Block

Senior Security Engineer, Bitcoin Platform

16 Hours Ago

8 Locations

Hybrid

12,000 Employees

Senior level

Apply

12,000 Employees

Senior level

Blockchain • eCommerce • Fintech • Payments • Software • Financial Services • Cryptocurrency

The Senior Security Engineer will co-design and co-build security features for Cash App's Bitcoin platform, ensuring secure handling of Bitcoin holdings. Responsibilities include developing security mechanisms, maintaining the open-source cold storage system, and contributing to the security infrastructure across the platform.

Block

Senior iOS Software Engineer, Identity & Transfers

16 Hours Ago

Vancouver, BC, CAN

Remote

Hybrid

12,000 Employees

Senior level

Apply

12,000 Employees

Senior level

Blockchain • eCommerce • Fintech • Payments • Software • Financial Services • Cryptocurrency

As a Senior iOS Software Engineer in the Cash App Trust team, you will develop secure and efficient methods for money transfers and identity verification. Your responsibilities include building app features, improving legacy code, collaborating with cross-functional teams, and impacting product direction while ensuring code quality.

Block

Senior iOS Software Engineer, Identity & Transfers

16 Hours Ago

8 Locations

Remote

Hybrid

12,000 Employees

Senior level

Apply

12,000 Employees

Senior level

Blockchain • eCommerce • Fintech • Payments • Software • Financial Services • Cryptocurrency

As a Senior iOS Software Engineer for Cash App Trust, you will enhance the customer experience in money transfers and identity verification. Responsibilities include building and improving app features, crafting durable code, re-architecting legacy systems, and collaborating with cross-functional teams while ensuring customer feedback informs product solutions.

Block

Senior iOS Engineer, Square E-Commerce

16 Hours Ago

8 Locations

Remote

Hybrid

12,000 Employees

Senior level

Apply

12,000 Employees

Senior level

Blockchain • eCommerce • Fintech • Payments • Software • Financial Services • Cryptocurrency

The Senior iOS Engineer will define the future of e-commerce mobile products at Square, develop native iOS technologies, collaborate across teams, and enhance the Square Online mobile experience with features like real-time insights and advanced photo editing.

Block

Senior iOS Engineer, Modes and Settings

16 Hours Ago

8 Locations

Remote

Hybrid

12,000 Employees

Senior level

Apply

12,000 Employees

Senior level

Blockchain • eCommerce • Fintech • Payments • Software • Financial Services • Cryptocurrency

The Senior iOS Engineer will lead the engineering implementation of seller-facing projects, collaborate on mobile apps across multiple levels, build resilient systems for transactions, and work closely with product teams to enhance product features based on customer feedback.

Block

Senior Frontend Software Engineer, Commerce (Pacific Time Zone Only)

16 Hours Ago

Vancouver, BC, CAN

Remote

Hybrid

12,000 Employees

Senior level

Apply

12,000 Employees

Senior level

Blockchain • eCommerce • Fintech • Payments • Software • Financial Services • Cryptocurrency

As a Senior Frontend Software Engineer on the Commerce team, you will design, build, and maintain web payment experiences, collaborating with teams to deliver best-in-class solutions for customers while advancing Cash App's mission of financial empowerment.