Senior Full Stack Java Developer Jobs in Chesterfield, MO

Mastech Digital provides digital and mainstream technology staff as well as Digital Transformation Services for all American Corporations. We are currently seeking a Senior Associate Full Stack Engineer for our client in the Professional Services domain. We value our professionals, providing comprehensive benefits and the opportunity for growth. This is a Contract position, and the client is looking for someone to start immediately.

Duration: 6 Months Contract

Location: Remote (St. Louis, MO)

Salary: $55.00-$60.00/Hourly

Role: Senior Associate Full Stack Engineer

Primary Skills: Python

Role Description: The Senior Associate Full Stack Engineer must have 3+ years of experience. For this role, you must be a highly skilled Full Stack Engineer with deep expertise in building secure, scalable, and cloud-native applications. This role demands hands-on experience with modern frameworks, cloud platforms, and DevSecOps practices.

Education:

- Bachelor's Degree or Equivalent Work Experience

Year of Experience:

- 3+ years

Principal Responsibilities:

- Design and implement scalable, secure, and cloud-native software applications using Python, Django REST Framework, FastAPI, React, and Next.js within microservices architecture.

- Develop and maintain REST APIs and integrate with OIDC/OAuth-based authentication systems, ensuring compliance with advanced security concepts for apps in Azure and Entra ID cloud-native app security.

- Lead the deployment and orchestration of containerized applications using Docker, Helm, and Kubernetes, with a focus on developer-centric Kubernetes practices.

- Develop and manage CI/CD pipelines using GitHub Actions, incorporating automated testing, security scanning, and deployment workflows.

- Package and distribute Python applications using modern Python packaging standards and tools.

- Stay current with emerging technologies, including GenAI and LLMs, and contribute to innovative initiatives.

- Act with integrity, professionalism, and personal responsibility to uphold the firm’s respectful and courteous work environment.

Qualifications:

- Minimum of 3 years of full-stack development experience with demonstrated expertise in Python, React, including frameworks like Django REST Framework, and FastAPI.

- Bachelor’s degree in Computer Science, Software Engineering, or a related field.

- Proven experience building and securing cloud-native applications on Azure or GCP, with deep understanding of OIDC, OAuth, and Entra ID security models.

- Proficiency in containerization and orchestration using Docker, Helm, and Kubernetes, especially in developer-focused environments.

- Strong command of CI/CD pipelines using GitHub Actions, and version control with Git.

- Hands-on experience with scripting and automation using Bash, and PowerShell,

- Solid understanding of microservices architecture, REST API design, and Python packaging best practices.

- Familiarity with advanced application security in cloud environments, including threat modeling and secure deployment patterns.

- Experience with GenAI and LLMs is a plus.

- Strong verbal/written communication, problem solving, analytical and independent judgment skills to support an environment driven by customer service and teamwork.

- Ability to positively influence, mentor and be a credible source of knowledge to less experienced team members

Education: Bachelor’s degree in Computer Science, Software Engineering, or relevant field

Experience: Minimum 3+ years of experience

Relocation: This position will not cover relocation expenses

Travel: No

Local Preferred: Yes

Note: Must be able to work on a W2 basis (No C2C)

Recruiter Name: Kajal Vatsa

Recruiter Phone: 484-331-9666

Benefits:

We have various coverages and additional benefits to choose from:

- Medical, Dental (Including Ortho) & Vision Insurance (Option to Enroll).

- Paid Leaves (Wherever applicable).

- Life & Disability Coverage (Upon eligibility).

- 401K Option, Education Assistance Program and more.

Mastech Digital is an Equal Opportunity Employer - All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or protected veteran status.

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