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Business Application Developer

SingleWave Technologies

Full-time

Saint Charles, MO

Job description

Company Overview

SingleWave Technologies is an IT consulting and software development firm specializing in custom business applications, systems integration, and workflow automation for small and mid-sized businesses. We design, host, and maintain production systems primarily on Amazon Web Services (AWS), integrating real-world data, APIs, and cloud infrastructure.

At SingleWave, we help leaders sleep better and scale faster by delivering frictionless technology solutions that drive growth.

Job Summary

Experience Level: Mid-level Software Development (3+ years).

We are seeking a Business Application Developer to build, enhance, and support custom business applications. This role blends traditional software development with low-code platforms such as Retool and ToolJet. The ideal candidate has strong programming fundamentals, experience with RESTful APIs, and the ability to independently learn and troubleshoot unfamiliar systems.

Key Responsibilities

  • Develop and maintain business applications using tools like Retool and ToolJet
  • Write custom application logic using Python and others like JavaScript
  • Integrate systems using RESTful APIs and third-party services
  • Work with SQL databases to design queries and data models
  • Participate in requirements gathering and solution design
  • Test, debug, and support production applications, whether personally developed or developed by others
  • Document systems and provide user and internal training
  • Collaborate closely with engineers, architects, and other stakeholders

Required Qualifications

  • 3+ years of professional experience in software/application development
  • Hands-on experience integrating RESTful APIs
  • Strong SQL and relational database fundamentals
  • Demonstrated problem-solving and debugging ability
  • Ability to work independently and within a team
  • Clear written and verbal communication skills

Preferred / Value-Add Skills

  • Python (highly valued)
  • JavaScript
  • Experience with AWS (e.g., Lambda, S3, RDS, or similar services)
  • Familiarity with low-code platforms (Retool, ToolJet, or comparable tools)
  • Experience supporting cloud-hosted production systems

What We Offer

  • Competitive salary
  • Health, dental, and vision insurance
  • 401(k) retirement plan
  • Opportunities for professional growth and skill development
  • A mix of short and long-term client projects
  • Collaborative engineering culture focused on quality and ownership

Job Type: Full-time

Pay: $65,000.00 - $90,000.00 per year

Benefits:

  • 401(k)
  • 401(k) matching
  • Dental insurance
  • Health insurance
  • Life insurance
  • Paid time off
  • Parental leave
  • Vision insurance

Work Location: In person