Senior Java Developer

MasterApp Labs; Austin (TX); Hybrid; USD 90,000 - 150,000; Full time

Benefits offered by this job

401(k) matching

Dental insurance

Health insurance

Vision insurance

Job summary

MasterApp Labs in Austin, TX seeks a Senior Java Developer to design and build secure, scalable backend interfaces and RESTful services using the Spring framework.

You will implement data pipelines, map data structures, collaborate across teams, and ensure performance with modern authentication and microservices. Flexible remote options available.

Qualifications

• 8 years of experience designing and developing Java solutions.
• 8 years designing scalable, secure end-to-end interfaces for internal and external integrations.
• 8 years hands-on Spring ecosystem expertise.
• 8 years developing RESTful APIs with OAuth 2.0 and JWT.
• 8 years working with microservices and XML/JSON data parsing.
• 8 years with Oracle and SQL optimization using ORM (Hibernate/JPA).
• 8 years collaborating with engineering, product, and business teams for data needs.
• 8 years implementing design best practices for performance and scalability.
• 3 years using Maven/Gradle and Git.
• 3 years applying Agile development methodologies.

Responsibilities

• Design and build secure, scalable backend interfaces and integration points.
• Develop, document, and maintain enterprise-grade RESTful web services; build high-volume data pipelines with Spring.
• Map data structures to support seamless exchange across apps and third-party systems; write tests and resolve bottlenecks.
• Collaborate with systems analysts, DBAs, and frontend teams to define interface requirements and schemas.
• Perform other duties as assigned.

Skills

Java

Spring

REST APIs

OAuth 2.0

JWT

Microservices

SQL & ORM

End-to-end integration

Maven/Gradle

Agile

Tools

Hibernate

JPA

Oracle

Job description

Benefits:

• 401(k) matching
• Dental insurance
• Health insurance
• Vision insurance

Job Title: Senior Java Developer

Location: Austin, TX, (Hybrid)-3 days remote with 2 days (Thurs & Fri) required to be onsite

Position Type: Contract

Interview Mode: MS Teams

Job Duties:

• Design and build secure, scalable backend interfaces and integration points.
• Develop, document, and maintain enterprise-grade RESTful web services. Build and optimize high-volume data-processing pipelines with the Spring framework.
• Map data structures to support seamless exchange across applications and third-party systems. Write comprehensive unit and integration tests and resolve data-processing bottlenecks and API latency issues.
• Collaborate with systems analysts, business analysts, database administrators, and frontend teams to define interface requirements and schemas. Perform other duties as assigned.

II. CANDIDATE SKILLS AND QUALIFICATIONS

Minimum Requirements:

Candidates that do not meet or exceed the minimum stated requirements (skills/experience) will be displayed to customers but may not be chosen for this opportunity.

• Years | Required/Preferred | Experience
• 8 | Required | Designing and developing solutions in Java using core enterprise concepts.
• 8 | Required | Designing scalable, secure, and maintainable end-to-end interface architectures for internal and external system integrations.
• 8 | Required | Hands-on expertise across the Spring ecosystem.
• 8 | Required | Developing and consuming RESTful APIs secured with standard protocols, including OAuth 2.0 and JWT.
• 8 | Required | Working with microservices architectures and parsing XML and JSON data.
• 8 | Required | Working with relational databases such as Oracle, optimizing SQL, and using ORM tools such as Hibernate and JPA.
• 8 | Required | Collaborating across engineering, product management, and business analysis teams to define data requirements and support seamless end-to-end integration.
• 8 | Required | Implementing application design best practices to improve performance, scalability, and maintainability.
• 3 | Preferred | Using build tools such as Maven or Gradle and version control systems such as Git.
• 3 | Preferred | Applying Agile development methodologies.

Flexible work from home options available.