Senior Software Developers in Test (Java, Selenium)

DTCC • Boston, MA

6d • Hybrid

About The Position

As a Software Development Engineer in Test (SDET), you will join a business-aligned development squad responsible for building, enhancing, and maintaining high-quality software solutions. The role combines software development and test engineering, emphasizing Core Java programming, technical problem-solving, and automation development. You will design and develop scalable automated testing solutions across UI, API, and backend systems, applying software engineering principles to improve quality, reliability, and testability.

The position calls for a hands-on Java programmer able to independently write, debug, and maintain code and use development skills to build robust, scalable, maintainable test automation solutions. The work includes collaboration with developers, product owners, and engineering teams throughout the software development lifecycle, as well as participation in Agile ceremonies, code reviews, and continuous improvement initiatives.

DTCC’s IT group delivers secure, reliable technology solutions that support global capital markets. The company offers a flexible/hybrid work model of three days onsite and two days remote; onsite days include Tuesdays, Wednesdays, and a third day selected by the team or employee.

Requirements

• Bachelor's degree in Computer Science, Software Engineering, Information Technology, or a related field, or equivalent experience.
• At least 6 years of experience in Software Development Engineering in Test, test automation engineering, software development, or a related technical discipline.
• Significant hands-on experience developing automation solutions and frameworks using Java.
• Experience testing complex enterprise applications across UI, API, and backend layers.
• Strong hands-on Core Java programming skills, including the ability to independently write, debug, and explain Java code.
• Strong understanding and practical application of object-oriented programming principles, including inheritance, polymorphism, abstraction, and encapsulation; collections, data structures, fundamental algorithms, exception handling, strings and data manipulation, streams and lambda expressions, multithreading and concurrency, and reusable code design.
• Strong programming and problem-solving skills, including applying data structures and fundamental algorithms to practical coding challenges.
• Hands-on experience designing, developing, and enhancing Java-based test automation frameworks, rather than solely executing or maintaining existing automated test suites.
• Experience with Selenium, TestNG, JUnit, or comparable Java-based automation technologies.
• Strong experience with API testing and automation using Rest Assured or similar technologies.
• Experience with Maven or Gradle and dependency management.
• Strong SQL skills and experience validating backend data against relational databases such as Oracle, DB2, or Snowflake.
• Experience using JDBC or similar database connectivity technologies for backend data validation.
• Experience integrating automated tests into CI/CD pipelines and working with technologies such as Jenkins, CloudBees, Bitbucket, and Git.
• Understanding of TDD, BDD, and modern software testing practices.
• Strong debugging, analytical, and root-cause analysis skills.
• Strong communication and collaboration skills and the ability to work effectively within an Agile development team.

Nice To Haves

• Experience with AWS or another cloud environment.
• Familiarity with Docker and Kubernetes.
• Experience with performance testing tools such as JMeter.
• Experience working in Agile and DevOps environments.
• Experience supporting applications within financial services or another regulated enterprise environment.

Responsibilities

• Design, develop, and maintain Java-based test automation frameworks and solutions across UI, API, and backend applications.
• Write clean, reusable, maintainable Java code using object-oriented programming principles and software engineering best practices.
• Solve programming and technical problems using Core Java, data structures, fundamental algorithms, and object-oriented design principles.
• Develop automated tests using technologies such as Selenium, TestNG, JUnit, and Rest Assured.
• Build scalable UI automation solutions using design patterns such as the Page Object Model (POM).
• Develop API automation and validate RESTful services using Rest Assured or similar technologies.
• Perform backend and database validation using SQL, JDBC, and relational databases.
• Debug application and automation code to identify defects, test failures, and root causes.
• Develop and optimize complex SQL queries for data validation and backend testing.
• Integrate automated tests into CI/CD pipelines using technologies such as Jenkins, CloudBees, Bitbucket, and Git.
• Contribute to integration, API, functional, regression, smoke, and end-to-end automated testing, and partner with developers to strengthen unit-test coverage.
• Apply Test-Driven Development (TDD) and Behavior-Driven Development (BDD) practices where appropriate.
• Collaborate with software developers, product owners, and engineering teams throughout the software development lifecycle.
• Participate in Agile ceremonies, code reviews, and continuous improvement initiatives.

Benefits

• Competitive compensation, including base pay and annual incentive.
• Comprehensive health and life insurance and well-being benefits, based on location.
• Pension / Retirement benefits.
• Paid Time Off and Personal/Family Care, and other leaves of absence when needed to support physical, financial, and emotional well-being.
• Flexible/hybrid work model of three days onsite and two days remote.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior