Web development
High-performance websites and web applications built with modern frameworks — fast, accessible, search-friendly and designed to convert.
Service infoTechnical partner for your success
Bespoke software, built properly.
We're a web development and design studio working with startups, SMEs and enterprises. We focus on your business needs to deliver user-centred websites, applications and support services — from first conversation through to launch and beyond.
100+ projects delivered
★★★★★ 5.0 average client rating
Senior team, no handoffsThe people you brief are the people who build
100+
Projects delivered
Across every stage of growth
99.9%
Uptime guarantee
Monitored in production
5★
Average client rating
From 100+ reviews
2–5 wks
Average delivery
Concept to launch
Production-proven tools we build with every day
ReactNext.jsTypeScriptNode.jsTailwind CSSPostgreSQLMongoDBAWSDockerVercelWordPressWooCommerceShopifyStripeFigmaGA4ReactNext.jsTypeScriptNode.jsTailwind CSSPostgreSQLMongoDBAWSDockerVercelWordPressWooCommerceShopifyStripeFigmaGA4
What we do
Our software development and design services
With a track record of successful projects and years of experience solving technical challenges across ecommerce, healthcare, finance and construction, we build software that holds up in production.
E-commerce development
Full-cycle store builds across WooCommerce, Shopify and headless stacks — designed, developed and maintained so they stay competitive.
Service info
SaaS development
Multi-tenant architecture, subscription billing and the audit trails enterprise buyers ask about — from validated MVP to platform at scale.
Service info
Web design & UI/UX
Research-led interface design and design systems your engineers can build from — accessibility included from the start, not bolted on.
Service infoSelected work
Projects we're proud of
A selection of recent builds across SaaS, ecommerce, healthcare and construction. Each one links to the full case study.
SaaS Platform
500+ concurrent users
500+ concurrent users
Meridian Capital Partners
A real-time financial analytics platform with multi-tenant architecture and sub-100 ms query response times.
Read the case study
E-Commerce
3× conversion rate
3× conversion rate
Harlow & Vance
A headless commerce build for a premium fashion retailer — 3× conversion improvement and a 98/100 Lighthouse score.
Read the case studyHow we work
Our software development process
A detailed, transparent process that keeps your end-goals in view at every stage — from the initial consultation through to post-launch support.
STEP 01
Requirement analysis and consultation
We speak to the relevant members of your team to find out what you need from the product. Those requirements become the roadmap for development.
STEP 02
Design and prototyping
Every project begins with prototyping. We create an interactive mockup so you can experience the look and feel early, and feed back before code is written.
STEP 03
Development and testing
Our developers build the bespoke code your software needs, with automated tests, code review and QA running alongside the build — not after it.
STEP 04
Deployment and integration
Database setup, data migration and third-party integrations, then a monitored deployment. We only ship once we're satisfied the setup is correct.
STEP 05
Post-launch support and maintenance
We stay on after launch day — additional functionality, feedback-driven changes, routine maintenance and answers whenever you need them.
STEP 06
Reporting and continuous improvement
Performance, uptime and conversion reporting, with a standing improvement list so the product keeps earning its place.
Why OpenApex
Modern engineering rigor, applied to your project
We combine senior engineering talent with modern design. Every project is delivered by the people who scoped it — no juniors learning on your budget, no account managers between you and the work.
And because our founders still build, the advice you get is practical rather than commercial. If something isn't worth doing, we'll say so.
More about usClient feedback
What our clients say
★★★★★
“Subtain and his team transformed our outdated platform into a modern SaaS product in just three weeks. Their technical depth and communication were exceptional.”
Sarah MitchellCEO, Meridian Capital Partners
★★★★★
“Our conversion rate tripled after the redesign. OpenApex understood our brand deeply and delivered a genuinely differentiated experience.”
James LarsonFounder, Harlow & Vance
★★★★★
“We came with a complex healthcare compliance requirement and a tight timeline. OpenApex delivered security and performance beyond what we thought possible.”
Dr. Rachel KimCTO, Riverstone Health Partners
★★★★★
“Transparent, fast, and genuinely talented — the team treated our roadmap like their own. Our construction SaaS is now our primary revenue driver.”
Tom PattersonCEO, Kestrel Construction Group
Careers
We're hiring across three roles
We're growing the team that delivers this work. Fully remote, senior-led, with real ownership of client projects from day one.
See open roles
Ready to start your project?
Tell us what you're building. We'll come back with a plan, a realistic timeline and a fixed price — usually within one business day.