Challenge
The client is a French SaaS start-up whose flagship no-code website builder had to compete with Shopify, Wix and Webflow. To stand out in this saturated market, the platform had to deliver enterprise-grade latency, seamless scalability, 24/7 uptime and a constant flow of new features—yet the internal development workflow was slow and bug-prone. Page-load times crept past three seconds, feature roll-outs took weeks, and mounting technical debt inflated support costs. Any optimisation had to respect a lean budget and a six-month market window while working side-by-side with the client’s own engineers
The client is a French SaaS start-up whose flagship no-code website builder had to compete with Shopify, Wix and Webflow. To stand out in this saturated market, the platform had to deliver enterprise-grade latency, seamless scalability, 24/7 uptime and a constant flow of new features—yet the internal development workflow was slow and bug-prone. Page-load times crept past three seconds, feature roll-outs took weeks, and mounting technical debt inflated support costs. Any optimisation had to respect a lean budget and a six-month market window while working side-by-side with the client’s own engineers
Solution
Sigli embedded two senior engineers—a full-stack and a front-end specialist—into the client’s scrum team and executed a three-step plan. 1. Discovery & architecture audit. We benchmarked Kubernetes hosting options and mapped third-party dependencies to identify performance bottlenecks. 2. Full-stack refactor & feature delivery. The team removed legacy code, re-architected key micro-services, introduced a news-feed module and an automated e-mail notification engine, and containerised workloads for easier CI/CD. 3. Support & knowledge transfer. We documented patterns, ran pair-programming sessions and put guardrails in place so the in-house team could ship independently. Technologies included React, TypeScript, Node.js, PostgreSQL and Terraform on a Kubernetes cluster. At hand-off the refactored codebase cut query latency by up to 300 %, reduced production bugs by two-thirds and trimmed feature lead-time from weeks to days, directly boosting customer retention and lowering support spend
Sigli embedded two senior engineers—a full-stack and a front-end specialist—into the client’s scrum team and executed a three-step plan. 1. Discovery & architecture audit. We benchmarked Kubernetes hosting options and mapped third-party dependencies to identify performance bottlenecks. 2. Full-stack refactor & feature delivery. The team removed legacy code, re-architected key micro-services, introduced a news-feed module and an automated e-mail notification engine, and containerised workloads for easier CI/CD. 3. Support & knowledge transfer. We documented patterns, ran pair-programming sessions and put guardrails in place so the in-house team could ship independently. Technologies included React, TypeScript, Node.js, PostgreSQL and Terraform on a Kubernetes cluster. At hand-off the refactored codebase cut query latency by up to 300 %, reduced production bugs by two-thirds and trimmed feature lead-time from weeks to days, directly boosting customer retention and lowering support spend
Results
300 % performance uplift on the heaviest back-end queries and page-render paths after a deep refactor and database tuning.
Release velocity doubled: streamlined CI/CD and IaC pipelines cut feature lead-time from weeks to days, letting the in-house team ship safely every sprint.
Richer user experience: a new dynamic news-feed and automated e-mail engine boosted session duration and reduced support tickets.
Lower total cost of ownership: cleaner architecture and fewer bugs trimmed maintenance and customer-support spend, freeing budget for innovation.
Future-proof scalability: a Kubernetes-based micro-service design now supports hundreds of independent store instances (each on its own domain) with near-zero downtime.
Together these gains turned an under-performing no-code builder into a lean, resilient SaaS platform that keeps customers happy and positions the start-up to compete head-to-head with established market leaders
300 % performance uplift on the heaviest back-end queries and page-render paths after a deep refactor and database tuning.
Release velocity doubled: streamlined CI/CD and IaC pipelines cut feature lead-time from weeks to days, letting the in-house team ship safely every sprint.
Richer user experience: a new dynamic news-feed and automated e-mail engine boosted session duration and reduced support tickets.
Lower total cost of ownership: cleaner architecture and fewer bugs trimmed maintenance and customer-support spend, freeing budget for innovation.
Future-proof scalability: a Kubernetes-based micro-service design now supports hundreds of independent store instances (each on its own domain) with near-zero downtime.
Together these gains turned an under-performing no-code builder into a lean, resilient SaaS platform that keeps customers happy and positions the start-up to compete head-to-head with established market leaders