Service · Web platforms
Scalable, secure, high-performance web platforms tailored to your specific business needs. From enterprise portals and e-commerce systems to SaaS applications, using modern technologies that match your team's skills and your operational reality. 14+ years building software that holds up.
Our expertise
We build web platforms that survive past the launch announcement. Stack choices we will hire for in three years, not framework-of-the-month. Code your team can read and extend.
01 · Enterprise portals
Multi-role authentication, complex permission models, integration with corporate identity providers, audit trails. The stuff that does not appear in marketing copy but determines whether the platform actually gets used.
02 · E-commerce systems
$10B+ in transactions processed. Multichannel and omnichannel commerce. Custom payment integrations when off-the-shelf does not fit. Catalog work at 20K+ SKUs.
03 · SaaS applications
Per-tenant data isolation, brand-aware theming, rolling-release engineering. Same engineering pattern reused across tenants for a single platform serving 100s of deployments.
04 · Headless & composable
When the front-end and back-end need to evolve independently. Headless WordPress and Drupal, custom backends with composable architectures, modern micro-frontend patterns.
Capabilities
Pick the stack your team can sustain. Modern enough to ship today, conservative enough that next year's hires can pick it up. We bring full-stack expertise across the stacks worth investing in.
Frontend frameworks
React when the application has rich state. Vue when team familiarity favors it. Astro for content-heavy marketing sites. Plain HTML when nothing else is justified.
Backend stacks
PHP (Drupal, Laravel, Symfony) for content-heavy work. Node and Python for API-heavy backends. .NET when enterprise has already standardized. Go for performance-critical services.
Database engineering
Relational by default. NoSQL when document or graph models genuinely fit. Caching layers tuned to query patterns, not as an afterthought.
DevOps & infrastructure
Infrastructure as code. Predictable deploys. Observability built in. Cost monitoring with budgets and alerts.
How we work
The phases that apply to every engagement, not just custom web development. The team that scopes does the building, and the operating.
Phase 01 · 2–4 weeks
Stakeholder interviews, technical review of existing systems, risk register, written scope with milestones and exit criteria.
Phase 02 · 3–12 months
Two-week sprints with working demos. Senior leads on every sprint review. Code reviewed, accessibility checked.
Phase 03 · 2–6 weeks
Parallel run with rollback path. On-call coverage during the launch window. Stabilization continues until incident rate trends to zero.
Phase 04 · ongoing
Multi-year retainer with the same team that built the product. Monthly check-ins, quarterly business reviews.
Read the full engagement model on the How We Work page.
Industries we serve
Six core verticals where OST has the deepest engagement experience. Plus nine adjacent industries served on selective engagements.
01
K-12 charter networks, higher education, public sector portals.
02
Donor-cycle nonprofits, advocacy organizations, civic platforms.
03
HIPAA-aware platforms, medical directories, telemedicine adjacency.
04
Multi-tenant SaaS, brokerage tools, self-storage operators.
05
OpenCart specialists, custom commerce, $10B+ in transactions processed.
06
Industrial platforms, B2B safety-tech, embedded engineering teams.
Also serves on selective engagements
Frequently asked questions
PHP (Drupal, Laravel) for content-heavy work. JavaScript (React, Vue, Node) for application-heavy work. Python for AI integration. .NET when enterprise has standardized. We pick what fits the engagement, not what is fashionable.
Marketing sites: 6 to 10 weeks. SaaS MVPs: 3 to 5 months. Enterprise portals: 6 to 12 months. Multi-tenant platforms: 9 to 18 months. Use our cost calculator for a defensible bracket.
Most clients move to a multi-year retainer after launch. The same team that built the platform runs it. Quarterly business reviews, monthly delivery reports, on-call coverage with documented SLAs.
Yes. Drupal 7 to 10. Magento 1 to modern commerce. WordPress upgrades. Classic ASP rewrites. See our migration service for the process.
WCAG 2.2 AA + Section 508 conformance is included in baseline scope. Audit-ready documentation produced as part of every engagement.
Ready to build?
Multiple ways to start: schedule a discovery call, run our cost calculator for a budget bracket, or use the contact form for a written response.
