McCarthy Holdings Inc

Application Developer II

McCarthy Holdings Inc • $80K — $95K *
Saint Louis, MO 63129In-Person
Information Technology
Less than 5 years of experience
Today
Be an Early Applicant
Job Overview by Ladders

Qualifications

  • Minimum 3 years of experience with enterprise iPaaS like Boomi, Mulesoft, or Snaplogic; Boomi preferred.
  • Strong database skills and knowledge of API integration frameworks, especially SQL, JSON, and XML.
  • Experience with AI platforms, particularly Palantir, is advantageous.
  • 3-5 years of development experience with .NET 6+/C#, Node.js/TypeScript, or similar building RESTful services.
  • Working knowledge of DevSecOps practices and tools, such as Checkmarx and GitHub.
  • Familiarity with secure file transfers and encryption in automated pipelines.
  • Knowledge of AWS, Azure, and Office 365 cloud platforms.

Responsibilities

  • Design and develop integrations using best practices in data model design and event-based processing.
  • Create custom applications on the AI platform Palantir for McCarthy's ecosystem.
  • Implement reusable solution components to support flexibility and growth in applications.
  • Evaluate new applications' technical capabilities to support procurement processes.
  • Provide technical support to quickly resolve issues for application teams.
  • Ensure security practices are integrated into application development and deployment.
  • Engage in continuous improvement by identifying performance enhancement opportunities.

Benefits

  • Collaborative work environment within a dedicated analytics team.
  • Opportunities for continuous learning and professional development.
  • Engagement in innovative projects using cutting-edge technologies.
  • Support for career growth through partnerships with IT staff and stakeholders.
Full Job Description
POSITION SUMMARY

McCarthy is seeking a full-time Application Developer II located in St. Lous, MO who as part of the Enterprise Solutions and Analytics team, will play a crucial role in building our application and integration portfolio, supporting our existing systems and driving innovation following modern DevSecOps practices.
RESPONSIBILITIES
Solution Design and Development
  • Design and develop integration solutions by applying best practices and standard patterns in data model design, data transfer and event-based processing. Leverage integration capabilities such as Rest APIs, message queues and remote process execution in developing solutions. Implement solutions that process both structured and unstructured data (images, videos, model files etc.).
  • Design and develop custom applications on AI platform Palantir, integrating them into McCarthy's ecosystem of applications.
  • Develop solutions for maximum reusability, using components available in enterprise applications and platforms. Promote modular approach in solution design and development. Maintain a robust integration application and integration environment to promote long-term flexibility and growth.
  • Support the procurement of new applications and platforms by evaluating technical capabilities and providing insight.
Support and Administration
  • Provide technical support and guidance for efficient and effective resolution of issues. Respond to queries from application teams in a timely manner to reduce disruption to end users.
Security
  • Ensure integration and application solutions follow McCarthy's security practices and guidelines.
  • Enforce input validation and output encoding, avoid hardcoded secrets and credentials, apply least privilege logic in API and service interactions, use strong modern cryptography, sanitize logs, and perform threat modeling early and regularly.
  • Adhere to and promote a shift-left security mindset for pipeline, secrets management and supply chain functions.
Project Execution, Task Management
  • Follow best practices and support organizational effort in managing projects and tasks effectively. Demonstrate an agile mindset in planning and execution of tasks.
Continuous Learning and Improvement
  • Constantly seek to improve current solutions. Identify opportunities to improve performance, automate workflows and improve end-user experience.
  • Keep up with the latest on tools and platforms by attending vendor events and leveraging learning opportunities.
Internal Relationship Management
  • Develop strong partnerships with internal IT staff to ensure solutions address McCarthy's needs effectively and requests are addressed in a timely and effective manner. Work closely with business system analysts and product owners in understanding requirements and building solutions that implement user stories effectively.
QUALIFICATIONS
  • Minimum 3 years of experience with an enterprise iPaas (integration platform as a service) such as Boomi, Mulesoft or Snaplogic. Boomi experience would be preferable.
  • Strong knowledge of database capabilities and API-driven integration frameworks. Strong knowledge of SQL. Solid understanding of data formats including JSON and XML.
  • Experience developing solutions on an AI platform such as Palantir is a plus.
  • 3 - 5 years of application development experience on a modern stack (e.g., .NET 6+/C#, Node.js/TypeScript, Python, Ruby - Ruby on Rails/Sinatra/ActiveRecord) building RESTful services, event-driven components, and CI/CD-backed deployments; familiarity with containers and cloud services is a plus.
  • Working knowledge of DevSecOps practices and tools (DAST/SAST/SCA/secrets scanning) and severity-based remediation workflows in CI/CD. Examples of tools include Checkmarx, OWASP, GitHub, Snyk, Terrasan and Terraform
  • Practical experience with secure file transfer (SFTP), key management, and PGP encryption in automated pipelines.
  • Knowledge of cloud platforms such as AWS, Azure and Microsoft Office 365.
  • Experience working on projects using an Agile approach and the Scrum framework.
  • Constant learner with a passion for continuous growth and improvement.
  • Strong interpersonal and communication skills. Strong team player with a collaborative mindset.


About McCarthy Holdings Inc

McCarthy Holdings, Inc. is a construction company that provides general contracting, construction management, and design-build services. The company serves clients in the healthcare, education, commercial, and industrial sectors. McCarthy Holdings, Inc. was founded in 1864 and is based in St. Louis, Missouri.
Learn more about McCarthy Holdings Inc
Size
3,000 employees
Industry
Real Estate & Construction
Net Income
$100 million
5 Year Trend
+12%
Revenue
$4.4 billion
* Ladders Estimates

Similar Jobs

Ad banner background

Get Ready For Your
Next Interview

More Jobs at McCarthy Holdings Inc

  • McCarthy Holdings Inc
    Application Developer II
    $80K — $95K *
    Saint Louis, MO 63129 (Saint Louis County)
    Today
    Information Technology
    In-Person
  • McCarthy Holdings Inc
    AI Engineer II
    $95K — $115K *
    Saint Louis, MO 63129 (Saint Louis County)
    Today
    Enterprise Technology
    In-Person
  • McCarthy Holdings Inc
    Sr. AI Security Engineer
    $110K — $130K *
    Saint Louis, MO 63129 (Saint Louis County)
    Today
    Information Technology
    In-Person
  • McCarthy Holdings Inc
    Senior (CM) Construction Manager
    $90K — $110K *
    El Mirage, AZ 85335 (Maricopa County)
    Yesterday
    Real Estate & Construction
    In-Person
  • McCarthy Holdings Inc
    Safety Manager - Marine
    $80K — $95K *
    Channelview, TX 77530 (Harris County)
    Yesterday
    Real Estate & Construction
    In-Person

More Information Technology Jobs

Find similar Application Developer II jobs:

NationwideSaint Louis, MO