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Senior Software Engineer

Haystack

seniorpermanentbackendfullstack United States Yesterday via LinkedIn
90,700 - 153,925 USD/annual

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Tags

JavaSpring BootJ2EEREST APIsMicroservicesSQLJUnitTDDCI/CDKubernetes

About the role

Role Overview

As a Senior Software Engineer, you will design, build, and maintain digital products using modern tools and technologies. You’ll apply scientific and technical knowledge to software design, implementation, and testing, while ensuring measurable outcomes for applications in production.

Responsibilities

  • Design, build, and maintain digital products
  • Apply scientific/technical knowledge to implementation and testing
  • Own and manage applications in production, ensuring measurable outcomes
  • Support the Enterprise Payments organization for seamless customer payment processing
  • Collaborate with teams to solve problems and follow best practices
  • Practice paired programming and test-driven development (TDD)

Requirements

  • 4+ years of software development experience with Java and J2EE (e.g., Spring Boot)
  • Experience with REST APIs and microservice architecture
  • Solid knowledge of relational database design and SQL
  • Strong understanding of object-oriented design and software development concepts
  • Experience with TDD and testing frameworks (e.g., JUnit)
  • Familiarity with CI/CD and DevOps methodologies/tools (e.g., GitHub, Jenkins)
  • Experience with containerization technologies such as Kubernetes and Docker

Compensation / Benefits

  • Competitive annual salary: $90,700 - $153,925
  • Technology setup (laptop, monitors, peripherals)
  • Monthly connectivity reimbursement for remote work
  • Opportunity to shape the future of protection and make an impact

About Haystack

Haystack is involved in hiring through partners, supporting organizations with staffing for technology roles. The posting focuses on building and maintaining digital products, particularly supporting enterprise payments and production application ownership.

Scraped 8/5/2026