Application Development

Gilder Search Group; New York, Northern (NY, KY); On-site; USD 96,000 - 228,682,000; Full time

Job summary

Gilder Search Group seeks an experienced Enterprise Applications Developer/Analyst with 10+ years to support revenue and fare management applications in a hybrid New York environment. You will develop enterprise web apps and APIs using Python, Django, FastAPI, and AWS, while modernizing legacy systems.

Strong collaboration with cross-functional teams is essential. The role focuses on real-time transaction systems, web interfaces, and scalable architectures, including containerized deployments

Qualifications

• 10+ years of professional application development experience.
• Strong experience developing web-based applications and APIs.
• Advanced programming experience with Python.
• Hands-on experience with Django and/or FastAPI.
• Strong experience with AWS cloud development.
• Experience with AWS API Gateway.
• Hands-on experience with Docker.
• Experience with Kubernetes and Amazon EKS.
• Experience with AWS IAM / IAM Identity Center.
• Strong knowledge of HTML, JavaScript, CSS, and AJAX.
• Strong SQL development skills and experience with Oracle PL/SQL.
• Experience with PowerShell and/or Bash scripting.
• Experience developing and supporting enterprise applications across development, testing, and production environments.
• Strong troubleshooting and problem-solving capabilities.
• Ability to analyze complex technical problems and recommend effective solutions.
• Strong understanding of application architecture and design principles.
• Excellent communication and collaboration skills.
• Ability to work effectively with cross-functional technical and business teams.

Responsibilities

• Design, develop, test, deploy, and maintain enterprise web applications and APIs.
• Develop and implement custom application modules and APIs using Python.
• Build and support real-time transaction systems for ticket validation and revenue-related applications.
• Develop RESTful APIs and integrate applications with internal and external systems.
• Build web application frontends for both internal business applications and external customer-facing applications.
• Develop responsive, user-friendly, and visually appealing web interfaces.
• Work with HTML, JavaScript, CSS, and AJAX to develop and enhance web applications.
• Develop Python web applications using Django and FastAPI.
• Design, configure, and support applications deployed in AWS cloud environments.
• Configure and develop APIs using AWS API Gateway.
• Implement and manage containerized applications using Docker.
• Deploy and support applications using Kubernetes/Amazon EKS.
• Work with AWS IAM / IAM Identity Center to support application access and security.
• Implement and support server-based and serverless deployment strategies.
• Develop and maintain scripting solutions using PowerShell and Bash across Windows and Linux environments.
• Develop and optimize SQL and Oracle PL/SQL queries, procedures, and database components.
• Support application modernization initiatives and integration of legacy systems with newer technologies.
• Troubleshoot complex application, API, database, infrastructure, and deployment issues.
• Participate in application release and deployment planning and execution.
• Collaborate with development, infrastructure, cloud, QA, business, and other cross-functional teams to ensure successful delivery.
• Participate in daily stand-ups, sprint planning, reviews, code reviews, and other Agile ceremonies.
• Provide accurate level-of-effort estimates and technical recommendations for feature prioritization.
• Prepare and maintain technical documentation, development standards, API documentation, and deployment procedures.
• Participate in code reviews and provide recommendations regarding application architecture and design.
• Perform cross-browser, cross-platform, and cross-device testing.
• Ensure applications comply with applicable accessibility, usability, security, and technical standards.
• Participate in user testing and evaluate applications against usability and user-experience standards.
• Support continuous improvement of application development processes, tools, and methodologies.

Skills

Python

Django

FastAPI

AWS

AWS API Gateway

Docker

Kubernetes

Amazon EKS

IAM Identity Center

HTML/CSS/JS

Oracle PL/SQL

PowerShell

Bash

SQL

Tools

Docker

Kubernetes

AWS API Gateway

IAM Identity Center

AWS

Job description

Job Title: Application Development
Location: New York, NY
Contract Duration: 24 Months
Work Arrangement: Hybrid – greater emphasis on onsite work
Target Bill Rate: $70 to $80/hour
Experience: 10+ Years

Job Summary

We are seeking an experienced Enterprise Applications Developer/Analyst with 10+ years of application development experience to support enterprise revenue and fare management applications.

The successful candidate will work within a Revenue Fare Management Systems environment, supporting back-office web application development, maintaining and enhancing legacy revenue applications, and contributing to the development and modernization of a new fare payment system.

The role will involve developing web applications and APIs using Python, Django, and FastAPI, along with AWS cloud services, containerization, Kubernetes, SQL/Oracle PL/SQL, and modern web technologies.

The ideal candidate will be highly experienced in solving complex technical problems, designing scalable applications, collaborating with cross-functional teams, and supporting applications throughout the development and deployment lifecycle.

Key Responsibilities

• Design, develop, test, deploy, and maintain enterprise web applications and APIs.
• Develop and implement custom application modules and APIs using Python.
• Build and support real-time transaction systems for ticket validation and revenue-related applications.
• Develop RESTful APIs and integrate applications with internal and external systems.
• Build web application frontends for both internal business applications and external customer-facing applications.
• Develop responsive, user-friendly, and visually appealing web interfaces.
• Work with HTML, JavaScript, CSS, and AJAX to develop and enhance web applications.
• Develop Python web applications using frameworks such as Django and FastAPI.
• Design, configure, and support applications deployed in AWS cloud environments.
• Configure and develop APIs using AWS API Gateway.
• Implement and manage containerized applications using Docker.
• Deploy and support applications using Kubernetes/Amazon EKS.
• Work with AWS IAM / IAM Identity Center to support application access and security.
• Implement and support server-based and serverless deployment strategies.
• Develop and maintain scripting solutions using PowerShell and Bash across Windows and Linux environments.
• Develop and optimize SQL and Oracle PL/SQL queries, procedures, and database components.
• Support application modernization initiatives and integration of legacy systems with newer technologies.
• Troubleshoot complex application, API, database, infrastructure, and deployment issues.
• Participate in application release and deployment planning and execution.
• Collaborate with development, infrastructure, cloud, QA, business, and other cross-functional teams to ensure successful delivery.
• Participate in daily stand-ups, sprint planning, reviews, code reviews, and other Agile ceremonies.
• Provide accurate level-of-effort estimates and technical recommendations for feature prioritization.
• Prepare and maintain technical documentation, development standards, API documentation, and deployment procedures.
• Participate in code reviews and provide recommendations regarding application architecture and design.
• Perform cross-browser, cross-platform, and cross-device testing.
• Ensure applications comply with applicable accessibility, usability, security, and technical standards.
• Participate in user testing and evaluate applications against usability and user-experience standards.
• Support continuous improvement of application development processes, tools, and methodologies.

Required Qualifications

• 10+ years of professional application development experience.
• Strong experience developing web-based applications and APIs.
• Advanced programming experience with Python.
• Hands‑on experience with Django and/or FastAPI.
• Strong experience with AWS cloud development.
• Experience with AWS API Gateway.
• Hands‑on experience with Docker/containerization.
• Experience with Kubernetes and Amazon EKS.
• Experience with AWS IAM / IAM Identity Center.
• Strong understanding of server-based and serverless application deployment strategies.
• Strong knowledge of HTML, JavaScript, CSS, and AJAX.
• Strong SQL development skills and experience with Oracle PL/SQL.
• Experience with PowerShell and/or Bash scripting.
• Experience developing and supporting enterprise applications across development, testing, and production environments.
• Strong troubleshooting and problem-solving capabilities.
• Ability to analyze complex technical problems and recommend effective solutions.
• Strong understanding of application architecture and design principles.
• Excellent communication and collaboration skills.
• Ability to work effectively with cross‑functional technical and business teams.

Preferred Qualifications

• AWS Cloud Developer certification or equivalent AWS experience.
• Experience working with financial, payment, ticketing, transportation, revenue management, or other transaction-based applications.
• Experience supporting real‑time transaction processing systems.
• Experience working with legacy application modernization initiatives.
• Experience with enterprise API development and integration.
• Experience with Agile/Scrum development methodologies.
• Experience with application accessibility and usability standards.
• Experience conducting user testing and usability evaluations.
• Experience working in large, complex enterprise environments.