Manufacturing software development is the work of building custom software for plants — Manufacturing Execution Systems that capture real-time shop floor data, ERP integration that connects business planning to machine reality, custom inventory and scheduling systems that fit your operation, and the small but operationally critical applications that grow inside every manufacturer over time. FreedomDev has been doing this work in West Michigan since 2006. We know what an Epicor Kinetic deployment actually looks like at a 150-person discrete manufacturer. We have built MES systems for plants that grew past Excel-based tracking. We have integrated SAP S/4HANA with shop floor data collection at machine level. The work is specific. So is our experience.
Manufacturing software development is the work of building custom software for plants — Manufacturing Execution Systems that capture real-time shop floor data, ERP integration that connects business planning to machine reality, custom inventory and scheduling systems that fit your operation, and the small but operationally critical applications that grow inside every manufacturer over time. FreedomDev has been doing this work in West Michigan since 2006. We know what an Epicor Kinetic deployment actually looks like at a 150-person discrete manufacturer. We have built MES systems for plants that grew past Excel-based tracking. We have integrated SAP S/4HANA with shop floor data collection at machine level. The work is specific. So is our experience.
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The phrase "manufacturing software development" covers a wider range of work than most search results acknowledge. The top-ranking pages treat it as a generic capability category. In reality, mid-market manufacturers hire software developers for a specific set of recurring needs: - **Manufacturing Execution Systems (MES)** — real-time tracking of shop-floor operations, machine state, operator activity, WIP, and quality - **ERP integration and extensions** — connecting your existing ERP (Epicor Kinetic, NetSuite, Acumatica, SAP, Dynamics) to other systems that need its data or that feed it data - **Custom inventory and warehouse management** — covered in detail at [`/solutions/inventory-management`](/solutions/inventory-management) - **Production scheduling and capacity planning** — APS (Advanced Planning and Scheduling) tools or custom scheduling logic that the ERP cannot handle - **Quality management systems (QMS)** — SPC, inspection workflows, non-conformance tracking, supplier quality - **Customer portals and order entry** — letting customers see order status, request quotes, or place orders against quotes - **Vendor portals and supplier collaboration** — supplier-self-service for POs, shipment scheduling, supplier quality reporting - **Engineering/CAD integration** — pulling drawings, BOMs, and engineering changes from CAD or PLM into production systems - **Estimating and quoting tools** — custom cost estimators that handle your specific routing, tooling, and material costs - **Compliance and traceability** — FDA Part 11 (medical), AS9100 (aerospace), IATF 16949 (automotive PPAP), ISO 13485 (medical devices), CFR Part 820 (FDA medical) - **Internal applications** — quality data collection, time-and-attendance integration, training and certification tracking, calibration management For most mid-market manufacturers, the priority order is roughly: ERP integration first (because ERP is already in place and the integrations are growing), then MES (when shop-floor visibility becomes the constraint), then everything else as needed.
The pattern that drives most mid-market manufacturers to hire custom software developers: **Stage 1: Spreadsheets work.** Plant is under 50 employees. ERP is QuickBooks Enterprise or basic Sage. Production tracking is paper-and-Excel. Inventory accuracy is "we know what we have, mostly." This works because the volume is manageable and tribal knowledge fills the gaps. **Stage 2: ERP upgrade.** Company grows past 50-75 employees and the QuickBooks/Sage limitations get painful. They implement Epicor Kinetic, NetSuite, Acumatica, or Microsoft Dynamics. The ERP project takes 9-18 months and burns most available capital. After go-live, the ERP is the system of record but the shop floor is still paper-and-Excel. **Stage 3: Shop floor visibility crisis.** Two years post-ERP-go-live, the plant manager realizes the ERP cannot tell them what is happening on the floor right now. WIP is unknown. OEE is unmeasured. Quality holds are discovered hours after they occur. Schedule attainment is 65-75% and customers are complaining. This is when MES becomes the priority. **Stage 4: Integration sprawl.** As they add new tools (e-commerce, EDI partner integrations, BI dashboards, mobile receiving, customer portal, supplier portal), the ERP becomes the hub and the integration load grows. Each integration is a custom project. Integration competence becomes a strategic capability. **Stage 5: Custom business systems.** Specific business problems do not fit any off-the-shelf product. Estimating and quoting for engineered-to-order manufacturers is the classic example — every plant's estimating logic is unique because their cost structure is unique. Custom software gets built for the workflows the company has differentiated on. FreedomDev's engagements typically start at Stage 3 or 4 and continue through Stage 5. We rarely engage at Stage 2 (the ERP implementation itself is usually done by an ERP-specialist partner) but we are often the team that handles everything after.
Detailed in [`/solutions/mes-vs-erp-manufacturing`](/solutions/mes-vs-erp-manufacturing); summary here for context. Commercial MES products (Siemens Opcenter, Rockwell FactoryTalk, Plex now PTC, AspenTech, Epicor Advanced MES) range from $80k to $2M+ in licensing plus 6-18 months to implement. For mid-market discrete manufacturers — the typical FreedomDev client — most commercial MES products are overbuilt for the workload and underflex for plant-specific processes. ERP-bundled MES modules (Epicor Advanced MES from the Mattec acquisition, Acumatica's manufacturing edition, Dynamics 365 Supply Chain Management) integrate cleanly with their parent ERP but are constrained by the vendor's product roadmap and customization model. Custom MES on a modern stack (Node.js or Python service layer, PostgreSQL data store, MQTT or OPC-UA for shop floor connectivity, web-based dashboards plus tablets at each machine) costs $150k-$500k and ships in 12-20 weeks. For mid-market manufacturers, this usually wins on total cost and time-to-value. Detailed worked-example with year-one ROI math is in the [MES vs ERP page](/solutions/mes-vs-erp-manufacturing). Headline: 150-person discrete manufacturer running Epicor Kinetic, $245k MES build, ~$855k year-one financial impact (OEE improvement, WIP reduction, scrap reduction, schedule attainment improvement).
We do detailed work in [`/solutions/api-integration`](/solutions/api-integration) and [`/solutions/sap-custom-api-integration`](/solutions/sap-custom-api-integration). The manufacturer-specific patterns: **Shop floor data → ERP.** Machine state events, production completions, scrap reports, labor entries from operators. Usually flowing from MES (custom or commercial) into the ERP as work order completions, inventory transactions, and labor postings. **Engineering / PLM → ERP.** Parts, BOMs, and routings created or changed in engineering systems (SolidWorks PDM, Autodesk Fusion 360 Manage, Siemens Teamcenter, PTC Windchill) propagated to the ERP. Change order workflow that respects engineering's release process. **EDI → ERP.** Customer EDI 850 (purchase order), 855 (PO acknowledgment), 856 (ASN), 810 (invoice), and the 940/945 warehouse-related transactions for distributed manufacturers. Vendor-side EDI for outbound POs to suppliers. We integrate via the ERP's IDoc or REST API rather than spinning up a separate EDI broker for most mid-market scopes. **Customer portal → ERP.** Custom customer portals (or B2B e-commerce front ends) that need to show real-time inventory availability, place orders, see order status, and download invoices. Bi-directional integration with the ERP. **Supplier portal → ERP.** Supplier self-service for receiving POs, confirming ship dates, uploading ASNs, and supplier-side quality reporting. Reduces the inbound EDI burden and gives smaller suppliers a way to integrate without their own EDI capability. **BI / data warehouse from ERP.** Daily or hourly extracts from the ERP into Snowflake, BigQuery, Redshift, or PostgreSQL-based data warehouses for analytics and reporting that the ERP's native reporting cannot deliver. **CAD/CAM → MES → machine controllers.** Specialized integration for plants doing CNC manufacturing: G-code routing from CAM (Mastercam, Fusion 360, Esprit) through MES to the machine controllers, with feedback on machine status and completion.
The "manufacturing software development" category covers very different workflows depending on what is being manufactured. Different industries have different priority systems and different regulatory environments. **Discrete manufacturing (mid-market).** Engineered-to-order or configure-to-order products. Typically Epicor Kinetic, Acumatica, or Microsoft Dynamics as the ERP. Custom estimating and quoting tools are common. MES is the highest-leverage software investment after ERP. Examples: contract manufacturers for automotive, aerospace components, medical-device sub-assemblies, industrial equipment. **Process manufacturing.** Chemicals, food and beverage, pharmaceuticals, cosmetics. ERPs include NetSuite (food), SAP, Sage X3, Microsoft Dynamics F&O. Recipe management, lot genealogy, and quality compliance (FDA, FSMA, GMP) drive software requirements. MES looks different here — batch records, recipe execution, in-process quality, environmental monitoring. **Job shops.** Low-volume, high-mix discrete manufacturers (machine shops, custom fab, contract assemblers). Estimating accuracy and shop-floor scheduling are the leverage points. ERPs include JobBOSS, ProShop, Global Shop Solutions. Custom estimating and detailed shop-floor scheduling tools are common. **Medical devices.** FDA Part 820 (Quality System Regulation), FDA Part 11 (electronic records), ISO 13485 compliance. Software validation requirements (IQ/OQ/PQ for any system in the quality data path). MES needs full traceability and audit trail. **Aerospace and defense.** AS9100 quality requirements, ITAR / EAR export controls, customer-specific PPAP requirements. CMMC compliance for DoD suppliers. Heavy traceability requirements. **Automotive (Tier 1, Tier 2, Tier 3 suppliers).** IATF 16949 quality requirements, customer-specific quality programs (Ford Q1, GM BIQS, Stellantis Q1A), PPAP submissions, ISO/TS 16949 traceability. **FreedomDev's experience concentration**: discrete mid-market manufacturers in West Michigan (Tier 2 automotive, industrial equipment, specialty components, contract manufacturing for medical and aerospace sub-assemblies). We have shipped work in process manufacturing and job shops; the bulk of our experience is mid-market discrete.
We are based in Zeeland, Michigan, in the heart of West Michigan's manufacturing economy. This is not a marketing line — it shapes what we know and who we have worked with. West Michigan manufacturing characteristics: - Office furniture cluster (Steelcase, Haworth, Herman Miller, MillerKnoll) and the tier-1 and tier-2 suppliers that orbit them - Tier-1 automotive suppliers feeding Detroit OEMs (Faurecia, Magna, Adient, Lear, ZF, Inteva, Gentex) - Tier-2 automotive specialty manufacturers (metal fab, plastic injection, electronics assembly) - Medical device manufacturers (Stryker, Spectrum Health-affiliated suppliers, smaller specialty firms) - Specialty industrial equipment and machinery - Food and beverage manufacturers (the dairy and produce processing corridor between Grand Rapids and Holland) We have shipped manufacturing software for companies in every one of these categories. We know the ERP landscape (Epicor Kinetic dominates the Tier 2 metal-fab space; Acumatica and NetSuite are growing; the larger Tier 1 firms run SAP). We know the typical operational maturity (mid-market West Michigan manufacturers are often more operationally rigorous than peers in other regions because the customer base — automotive and medical — has high quality expectations). For West Michigan companies, hiring a software developer who understands the regional manufacturing context reduces the "explain our industry" burden that out-of-region developers impose. For out-of-region companies, the West Michigan base is operationally invisible — remote engagement is the standard model since 2009 (covered in detail at [`/services/sql-consulting/oregon`](/services/sql-consulting/oregon)) — but the manufacturing experience comes from working with these companies and translates directly to manufacturers elsewhere.
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