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Saas Application Developer Jobs in Missouri (NOW HIRING)

VSE

Principal Application Developer (372)

California, MO · On-site

$125 - $150/hr

The Principal Application Developer is accountable for the design, coding/build, and scale-out of a ... Previous experience with large-scale e-commerce builds or SaaS platforms #J-18808-Ljbffr

Human Agency

Senior Full-Stack Engineer

Saint Louis, MO · On-site

Responsibilities SaaS Application Development * Detection: * Develop backend algorithms to process ... Experience in DevOps, CI/CD pipelines, and secure release management. * Background in security ...

Human Agency

Senior Full-Stack Engineer

Saint Louis, MO · On-site

Responsibilities SaaS Application Development * Detection: * Develop backend algorithms to process ... Experience in DevOps, CI/CD pipelines, and secure release management. * Background in security ...

Eightelevengroup

Lead Data Engineer

Clayton, MO · On-site

$250/hr

Strong hands-on application engineering experience with SaaS, custom applications, APIs, integrations, automation, and production implementation * Proven technical leadership skills, including ...

Brooksource

Lead Data Engineer

Clayton, MO · On-site

$65 - $75/hr

Strong hands-on application engineering experience with SaaS, custom applications, APIs, integrations, automation, and production implementation * Proven technical leadership skills, including ...

teKnoluxion

System Administrator (SaaS)

Saint Louis, MO · On-site

$122K - $147K/yr

... engineering, software development, and operational support. Bcore accelerates decisive advantage ... You should be able to quickly respond to application/hardware related issues, resolve on the spot ...

Jobgether

$106K/yr

Analyze application logs, support bundles, database queries, API traffic, and system metrics to ... Practical experience working with REST APIs and SaaS or web-based applications. * Experience with ...

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Saas Application Developer information

What cities in Missouri are hiring for Saas Application Developer jobs?

Cities in Missouri with the most Saas Application Developer job openings:

Principal Application Developer (372)

California, MO • On-site

VSE
Transportation and Warehousing • 1 - 5K employees
Learn more about VSEexternal

$125 - $150/hr

Other

Posted 7 days ago

Job description

Overview

Position Type

Full Time

Category

Non DOT - Safety Sensitive Position

Description

SUMMARY: The Principal Application Developer is accountable for the design, coding/build, and scale-out of a modern e-commerce platform backend. In this role you will be responsible for the software architecture and development of a custom, robust eCommerce platform able to support a wide array of product catalogs, checkout workflows, and integrations with third-party applications and services to ensure seamless commerce. You will play a key role in ensuring the platform is secure, scalable and reliable to handle high transaction volumes and future growth.

DUTIES & RESPONSIBILITIES:

Responsibilities include, but are not limited to:

  • Design, build, and maintain the core back-end software architecture for a scalable e-commerce platform.
  • Develop APIs, microservices, and integrations to power front-end applications and third-party services.
  • Implement secure payment systems, inventory management, and order fulfillment logic.
  • Optimize database schemas and queries for high availability and large-scale traffic.
  • Ensure platform compliance with security and privacy standards.
  • Collaborate with front-end developers, DevOps, and product managers to deliver a seamless platform experience.
  • Build automation, CI/CD pipelines, and monitoring tools for system reliability.
  • Proactively identify performance bottlenecks and design scalable solutions.
Qualifications

MINIMUM REQUIREMENTS:

  • Bachelor’s degree in computer science, software engineering or equivalent experience
    • OR an additional 3 years of specific work experience in lieu of degree
  • 7 years of relevant/technical work experience
  • Strong proficiency in server-side languages
  • Experience with frameworks
  • Proficiency in relational and non-relational databases
  • Experience with JSON, XML, and structured data formats
  • Experience building and consuming RESTful and/or GraphQL APIs
  • Knowledge of microservices architecture, event-driven systems, and containerization
  • Familiarity with cloud platforms
  • Hands-on experience with eCommerce including inventory management, payment gateways, shopping cart logic, and shipping APIs
  • Experience with integrations involving ERP backend systems
  • Understanding of catalog management, inventory, promotions, and multi-vendor systems
  • Will be required to travel 25%

PREFERRED REQUIREMENTS:

  • Experience designing distributed systems for high-traffic e-commerce
  • Knowledge of caching, message queues, and search optimization
  • Exposure to headless commerce platforms and API-first architectures
  • Previous experience with large-scale e-commerce builds or SaaS platforms
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