Senior Backend Engineer - Java Microservices (Remote)

Ad Hoc LLC; United States; On-site; USD 130,000 - 160,000; Full time

Benefits offered by this job

Health insurance

Dental insurance

Vision insurance

Flexible PTO

401K with employer match

Paid parental leave

Employee assistance program

Job summary

Ad Hoc LLC is actively hiring a Staff Software Engineer to join our remote-ready team. You will lead backend development across microservices, using Java 17+, Spring Boot, and REST APIs while coordinating with teams to modernize both legacy and new services.

You will mentor engineers, participate in Agile ceremonies, and drive architectural decisions for scalable, reliable software that supports federal programs and public-sector outcomes.

Qualifications

• Bachelor's degree in Computer Science, Software Engineering, Information Systems, or a related field.
• 10+ years of professional software development experience.
• 8+ years of hands-on Java development experience.

Responsibilities

• Design, develop, and maintain backend services within a microservices architecture using Java 17+, Spring Boot, JPA/Hibernate, and REST APIs
• Design and implement REST and SOAP-based services, including integrations between the modernized platform and existing systems
• Support the enhancement and sustainment of the legacy enterprise Java platform using technologies including Java, Spring Framework, Struts, JSP, EJB, JMS, WebLogic, Hibernate, and Oracle
• Analyze, troubleshoot, and resolve complex software defects and production issues across modern and legacy systems
• Develop and optimize SQL queries, data access patterns, and database integrations with Oracle
• Collaborate with architects and senior engineers on modernization initiatives, technical design, and implementation strategy
• Reduce technical ambiguity through clear documentation, thoughtful refactoring, automated testing, and improvements to existing systems
• Contribute to automated testing, CI/CD processes, application deployments, and overall engineering quality
• Participate actively in Agile ceremonies, including sprint planning, standups, reviews, and retrospectives, as well as planning and technical discussions with partners and key stakeholders
• Conduct code reviews, share technical knowledge, and mentor junior and mid-level engineers
• Plan and execute technical roadmaps and complex engineering work with minimal guidance from technical leadership
• Present technical topics effectively, clearly articulating implementation complexity, tradeoffs, risks, and costs to help inform business and technical decisions
• Communicate effectively about existing systems, design decisions, and program history in support of technical demonstrations, bid writing, and other client-facing activities
• Participate in technical interviews and help evaluate engineering candidates
• Periodically travel to collaborate with and present to clients, partners, and stakeholders

Skills

Java

Spring

REST API

Agile/Scrum

Git

Education

Bachelor's degree in Computer Science

Tools

Docker

Kubernetes

Oracle

WebLogic

JMS

JUnit

Mockito

Git

Job description

Ad Hoc LLC is actively hiring a Staff Software Engineer to join our remote-ready team. You will lead backend development across microservices, using Java 17+, Spring Boot, and REST APIs while coordinating with teams to modernize both legacy and new services.

You will mentor engineers, participate in Agile ceremonies, and drive architectural decisions for scalable, reliable software that supports federal programs and public-sector outcomes.