Think in systems
I connect product decisions to architecture, operations, and long-term maintainability.
Based in Pakistan · Working worldwidePortfolio / 2026
Founder · Chief architect · Senior full-stack engineer
Hayder
Ameen.
More than 400 projects across product engineering, platform integrations, payments, automation, accessibility, and the infrastructure behind them.
01 / Profile
Engineering with
range.
I work where product thinking, software architecture, and reliable delivery meet.
Across 400+ projects, I've built applications, APIs, integrations, payment flows, automations, and internal tools for startups and established teams.
I've worked inside countless systems—from custom software to WordPress, Shopify, Webflow, Duda, Zendesk, Booking Experts, and ClickFunnels.
Own the outcome
I take responsibility beyond implementation—from ambiguity to a stable production release.
Keep it legible
Clear interfaces, clear code, and clear communication make complex products easier to evolve.
Selected partnerships
Work with consequence.
0102030405
Lingrix ↗
Founder & Chief Architect
An AI-powered website localization startup, shaped from product strategy through system architecture and technical delivery.
AI localizationFounder-led productEnd-to-end architecture
Mission Future ↗
Major contributor & architect
A multi-tenant European platform ecosystem spanning customer applications, services, and backend infrastructure.
15+ applications10+ microservices3 backend servers
Mission Team ↗
Platform contributor
An enterprise digital workshop platform used by teams at AWS and other major organizations.
Enterprise-gradeTeam collaborationCustom SaaS tooling
cloudmotion ↗
Product & integration developer
Custom APIs, workflows, Zendesk products, Booking Experts applications, payment integrations, and bespoke operational software.
Booking Experts appsZendesk developmentPayments & automation
RRReis ↗
Accessibility engineering · Duda
A comprehensive accessibility remediation of the public transport website, delivered within the Duda platform.
Accessibility complianceDuda developmentPublic-facing platform
02 / Capabilities
Broad enough to see the system.
Tools change. The work remains: understand the problem, reduce uncertainty, ship clearly, and operate responsibly.
Product engineering
From first release to mature platform, with attention to usability, performance, and maintainable delivery.
ReactNext.jsTypeScriptJavaScriptHTML / CSS
Backend & data
APIs and services that model complex business rules without becoming difficult to operate.
Node.jsPostgreSQLMongoDBREST APIsIntegrations
Architecture
Pragmatic system boundaries, service communication, tenancy, and scaling decisions.
MicroservicesSystem designSaaSMulti-tenancyWorkflows
Cloud & operations
Hands-on ownership of production infrastructure, deployment pipelines, networking, storage, and serverless systems.
AWSDockerVercelRailwayDigitalOceanKubernetesElastic BeanstalkLambdaCodePipelineRoute 53S3
Quality & delivery
Version-controlled team workflows backed by automated unit, integration, and deployment checks.
GitGitHubJestGitHub ActionsAzure ReposAWS CodeCommit
AWS in production
Infrastructure is part of the product.
I've managed complete AWS environments—not just deployed into them—from DNS and networking to storage, compute, serverless services, and automated releases.
01Elastic BeanstalkNode.js APIs and persistent socket-based servers
02AWS LambdaJavaScript and Python microservices at serverless scale
03CodePipelineAutomated build and deployment workflows
04Route 53Domains, DNS routing, records, and production traffic
05S3Bucket management, access policies, assets, and versioning
06Account operationsElastic IPs, Amplify, resources, and full-account administration
Delivery discipline
Versioned. Tested. Automated.
Advanced daily Git workflows, primarily on GitHub, with additional delivery through Azure-hosted Git and AWS CodeCommit.
Jest unit testing plus integration and deployment workflows automated through GitHub Actions and AWS CodePipeline.
Delivery breadth
400+ projects.
Countless systems.
A career built not only on custom application development, but also on learning unfamiliar platforms quickly and making them work together.
Commerce & payments
Customer-facing and operational payment flows across the web and physical point of sale.
- —Stripe web transactions
- —Stripe POS integrations
- —Shopify
- —Booking Experts + Adyen
Business platforms
Deep customization and integration work inside established platforms—not only greenfield applications.
- —Custom WordPress widgets
- —Custom Shopify widgets
- —Webflow
- —ClickFunnels
- —Duda
Support & operations
Internal tools and automations that remove repetitive work and connect teams to their systems.
- —Zendesk apps
- —Zendesk themes
- —Booking Experts apps
- —Workflow automation
Accessibility
Practical remediation of public-facing products, including complex work within constrained site builders.
- —RRReis.nl
- —Duda accessibility
- —Compliance updates
- —Accessible interfaces
03 / Experience
A record of
delivery.
Building an AI website-localization startup and leading its product architecture, engineering direction, platform design, and technical delivery.
- —AI-powered localization platform
- —Product and systems architecture
- —Cloud infrastructure
- —Founder-led engineering
Architecting a European platform ecosystem across applications, microservices, internal SaaS tooling, and backend infrastructure.
- —15+ production applications
- —10+ microservices
- —3 Node.js backend servers
- —Multi-tenant customer operations
Building a digital workshop and team collaboration platform trusted by teams at AWS and other major companies.
- —Enterprise product delivery
- —Collaborative workshop tooling
- —Scalable, reliable architecture
Delivering custom APIs, operational workflows, Zendesk products, extensive Booking Experts development, payment integrations, and bespoke internal applications.
- —Booking Experts internal apps
- —Stripe and Adyen payment work
- —Zendesk apps and theme editing
- —API-driven automation
7+ years
Senior Full-Stack Developer
Independent · Fiverr & Upwork
More than 400 projects across custom software and established ecosystems, partnering with clients worldwide to solve product, integration, automation, and accessibility challenges.
- —400+ completed projects
- —250+ five-star reviews
- —Custom Shopify & WordPress widgets
- —Duda development & accessibility
04 / Featured product
Building as a founder.
Product strategy, systems architecture, infrastructure, and engineering ownership brought together in one venture.
Featured venture · 2026Founder & Chief Architect
Lingrix.
An AI-powered website-localization startup designed to help businesses take their existing web presence into new languages and markets.
I lead the product architecture, engineering direction, platform design, cloud infrastructure, and technical delivery.
AI localization↗
SaaS architecture↗
Cloud delivery↗
Founder-led product↗
Video walkthroughs from earlier client projects are available on a separate demonstrations page.
Watch project demos ↗05 / References
Trusted to deliver.
Selected feedback from long-term collaborations and independent client engagements.
015.0 / 5.0
“Hayder demonstrated professionalism right from the start of our collaboration. He consistently paid close attention to every detail and ensured that our requirements were fully met. His deep expertise in coding was evident, clearly backed by years of experience. The code he provided was impeccable, and Hayder was always reachable—whether in chat or during meetings—making communication seamless and efficient. We are extremely satisfied with his work and would highly recommend his services to anyone seeking top-notch development expertise”
finnmichelwentz
Fiverr
025.0 / 5.0
“I highly recommend this freelancer on Fiverr! They were incredibly easy to communicate with and assisted us in setting up a customized dashboard for our client's Shopify website. We are extremely satisfied with their work and professionalism. If you're looking for a skilled and reliable freelancer, look no further!”
imaginary_space
Fiverr
035.0 / 5.0
“Whatever you ask, he gets it done fast.”
kyungchunan
Fiverr
045.0 / 5.0
“The final result is great and it was delivered perfectly on time. Highlighting the flawless communication during the entire process.”
anquadros
Fiverr
055.0 / 5.0
“Hayder has developed a state-of-the-art digital platform for us! We've been working on this project over the last 7 months. Hayder is a pleasure to work with as he is autonomous and assumes all development responsibility ensuring that each project is delivered 100% error-free and ready to deploy in the market. I highly recommend using Hayder to develop your project 🚀”
mariannebauer
Fiverr
065.0 / 5.0
“Hayder was extremely responsive throughout the process. I could tell he was the right guy for the job because he asked all the right questions and had a good understanding of the objective right from the start. The final result was delivered as expected. Would definitely work with him and again recommend to others.”
jordangates596
Fiverr
Available for selected product builds, architecture work, and long-term engineering partnerships.
- — 7+ years of professional delivery
- — 400+ projects across diverse systems
- — 250+ verified five-star reviews
- — Architecture through implementation