> Markdown version of [/jobs/ext/243836-senior-developer](https://www.wearedevelopers.com/jobs/ext/243836-senior-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Developer - **Company:** Grimco, Inc. - **Location:** Sunset Hills, MO, United States (Remote available) - **Experience:** Expert - **Salary:** $12,480.0 - **Contract:** Permanent contract - **Skills:** Clean Code Principles, Application Programming Interfaces (APIs), Amazon Web Services, IBM System I, Microsoft Azure, Business Software, Relational Databases, Electronic Data Interchange (EDI), First Data, JSON, Modular Design, Query Optimization, Standard Sql, Software Engineering, SQL Databases, Systems Integration, Backend, Cloud Integration, Ibm Power Systems, Data Pipelines - **Published:** May 27, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=eea2352714d90137 ## About the Role Do you have experience in Systems integration?, * 5+ years of professional software development experience. * Demonstrated ability to learn and work in unfamiliar languages, frameworks, or platforms. * Strong SQL and relational database skills - you write efficient queries and understand data modeling. * Experience building integrations between systems - APIs, file-based exchanges, ERP connectivity, or similar. * Comfortable working with legacy code you didn't write - reading, understanding, and improving it with confidence. * Clear communication skills - you can explain technical decisions to non-technical stakeholders without losing the important detail. * Security awareness baked into how you work, not treated as an afterthought. Preferred Qualifications * Background in distribution, warehousing, manufacturing, or order management systems. * Experience with ERP platforms - custom-built or mid-market. * Exposure to EDI or data interchange - X12 transaction sets, flat file automation, trading partner integrations. * Cloud integration experience - REST/JSON APIs, Azure, AWS, or similar. * Familiarity with IBM Power Systems or other enterprise backend platforms. * RPG or IBM i development experience, or a demonstrated interest in the platform. ## Description * Build and maintain business application features across a multi-platform technology stack. * Design and implement integrations between internal systems, external partners, APIs, and data pipelines. * Apply modern development practices - clean code, modular design, SQL-first data access, and structured testing - regardless of the language or environment. * Serve as a technical resource on complex projects, contributing to design decisions and seeing work through to delivery. * Identify and follow through on opportunities to modernize and improve existing systems. * Collaborate with IT, project management, QA, and business stakeholders to deliver well-scoped, well-documented solutions. * Learn, maintain, and expand RPG applications as part of a broader development role. ## Related Videos - [Tips and Tricks for Working with JSON](https://www.wearedevelopers.com/videos/1229-tips-and-tricks-for-working-with-json) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [How to Destroy a Monolith?](https://www.wearedevelopers.com/videos/1407-how-to-destroy-a-monolith) - [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company) - [Introducing JSON Structure](https://www.wearedevelopers.com/videos/100219-introducing-json-structure) - [Building with IBM Bob](https://www.wearedevelopers.com/videos/100275-building-with-ibm-bob) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers)