Custom Web Development

Senior engineering for websites, web apps, SaaS products, APIs, and integrations, built on whatever technology fits the job. 31 years of experience.

Web Platforms & SaaS

Full-stack applications, portals, and SaaS products built for production

Technology That Fits

Back-end and front-end technology chosen to fit the project

API Integrations

Systems, services, and data sources connected and kept in sync

Headless & Static Sites

Content sites built for speed and low hosting cost

Custom software that holds up in production

Custom development at 84EM covers SaaS products, internal tools, API platforms, multi-system integrations, and anything whose data model no off-the-shelf product fits.

Greenfield builds scoped up front and built for the long term. 84EM handles the full lifecycle, requirements through deployment and handoff. (For WordPress-specific work – plugins, WooCommerce, headless, AI, integrations – see WordPress development services.)

CLIENT_REVIEW

Andrew partnered with my team to build a custom learning platform tailored to our unique needs. We specifically appreciated his expertise balanced with creativity and practicality. When presented with a new project, Andrew created multiple approach options that we could configure as necessary. He delivered work on budget and on schedule, and, on top of it all, is thoroughly enjoyable to work with!

Who builds your custom software?

One principal engineer, start to finish: the same person scopes the project, architects it, writes the code, deploys it, and hands it off.

Agencies often put a layer between you and the developers: the person who scoped the project isn’t the person who builds it, and details get lost in the relay.

Every 84EM engagement is handled directly by a principal engineer. Questions go straight to the person writing the code, and decisions don’t wait on a go-between.

What can 84EM build?

Web platforms and SaaS products, API integrations and middleware, back-end engineering, and headless or static sites.

Web Platforms & SaaS

Customer-facing applications, membership portals, and marketplaces. Full-stack builds with authentication, payment processing, admin panels, and the infrastructure behind them.

API Integrations & Middleware

Connecting CRMs, ERPs, payment processors, shipping providers, and third-party services so data moves between them cleanly. Custom middleware, webhooks, and sync logic built to handle edge cases.

Back-end Engineering

Background jobs, queues, scheduled tasks, and the operational plumbing production work needs, in a stack the team that inherits it can maintain.

Headless & Static Sites

Content-driven sites that load fast, rank well, and cost almost nothing to host.

How does a custom build run?

Four stages: discovery and scoping, architecture, development and testing, then documentation and handoff.

01

Discovery & Scoping

Requirements, technical constraints, stack selection, and a project plan with deliverables and dates.

02

Architecture

Architecture designed for your platform, hosting environment, and performance requirements. Estimates are specific, and scope doesn't quietly expand.

03

Development & Testing

Automated and manual testing throughout. Error handling, logging, monitoring, and CI/CD pipelines are part of the build from the start.

04

Documentation & Handoff

Code documentation, deployment instructions, and a walkthrough of the system.

Any company looking for his services would be very lucky to have him on their team!

Ned Palmer Chief Operating Officer & Co-Founder Panacea Financial
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Frequently Asked Questions

Can 84EM build AI into my product?

Yes. Custom AI tools, LLM-powered features, and automated workflows that plug into your existing stack. If you started an AI project that stalled, 84EM audits the work, fixes what's broken, and brings it to production. See AI Integration & Development for the full scope.

Can 84EM integrate with CRM, ERP, or business systems?

Yes. HubSpot, Salesforce, banking platforms, healthcare systems, payment processors, and more. Custom API connections built as needed.

What's 84EM's typical project timeline?

Small fixes and hourly tasks: a few business days. Small-to-mid projects like plugin builds or focused integrations: a few weeks. Complex builds like custom applications or platform integrations: 2 to 4 months. Enterprise engagements: 6 to 12+ months.

Will I work directly with the engineer doing the work?

Yes. 84EM's principal engineer is the point of contact and the accountable party from scoping through deployment. For larger engagements, a network of developers and specialists is brought in, but communication and accountability stay with the principal engineer.

Do I own the code 84EM writes?

Yes. All custom code is owned by the client, with full repository access, documentation, and no lock-in.

How do I get started with 84EM?

Contact 84EM to discuss your requirements, timeline, and budget. No commitment required.

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Have something to build?

Say what you're building. You'll get a straight answer on scope, timeline, and cost.

Folks We've Helped