Senior Application Developer (Hybrid)

Serigor•Philadelphia, PA

1d•Hybrid

About The Position

The Senior Application Developer is a senior-level individual contributor responsible for designing, developing, testing, implementing, and supporting scalable web applications, APIs, integrations, and cloud-based solutions. The role partners with business stakeholders, architects, product teams, and developers to deliver software that meets business objectives and follows architecture, security, and development standards. It also provides technical leadership through solution design, code reviews, mentoring, and adoption of modern engineering practices, including AI-assisted development tools. Organizational technologies include Java, Spring Boot, React, Angular, Google Cloud Platform (GCP), and enterprise integration platforms. This is a six-month contract-to-hire role based in Philadelphia, Pennsylvania, with a hybrid schedule requiring onsite work Tuesday, Wednesday, and Thursday.

Requirements

Bachelor's degree in Computer Science, Information Technology, Software Engineering, or a related field, or equivalent work experience.
At least 5 years of application development experience.
At least 3 years of experience developing enterprise web applications.
Hands-on experience with Java and Spring Boot.
Experience developing and consuming RESTful APIs and web services.
Experience with React and/or Angular.
Experience with relational databases and SQL.
Experience with cloud platforms, preferably Google Cloud Platform (GCP).
Experience with source control systems, automated testing, and CI/CD processes.
Strong troubleshooting and problem-solving skills.
Excellent verbal, written, and interpersonal communication skills.
Ability to work independently and collaborate effectively within cross-functional teams.

Nice To Haves

Experience developing cloud-native applications and microservices architectures.
Experience with Docker and Kubernetes.
Experience with API gateways, event-driven architectures, and enterprise integrations.
Experience with automated testing frameworks and test-driven development practices.
Experience working in Agile software development environments.
Familiarity with application security best practices and secure coding principles.
Experience using AI-powered software development and code generation tools.
Healthcare, insurance, or regulated-industry experience.
Ability to provide technical leadership through solution design, code reviews, and mentoring.

Responsibilities

Design, develop, test, deploy, and maintain enterprise-grade web applications, APIs, and cloud-native solutions.
Translate functional and technical requirements into scalable, secure, and maintainable application designs.
Develop RESTful APIs and integration services for internal and external business partners.
Build user interfaces using React and Angular, and backend services using Java and Spring Boot.
Implement cloud-native solutions using Google Cloud Platform services.
Participate in application architecture, technical design reviews, and solution planning.
Conduct code reviews to ensure compliance with coding standards, security requirements, and best practices.
Mentor and provide technical guidance to junior and mid-level developers.
Support production applications by troubleshooting incidents, resolving defects, and implementing enhancements.
Collaborate with DevOps teams on CI/CD pipelines, deployment automation, and operational excellence.
Ensure compliance with security, privacy, accessibility, and software development lifecycle standards.
Evaluate and use AI-assisted development tools, such as GitHub Copilot and Claude Code, to improve productivity and code quality.
Participate in Agile ceremonies, including sprint planning, backlog refinement, estimation, and retrospectives.
Create and maintain technical documentation, design artifacts, and implementation guides.