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Bug Fixing for UK Companies | UK Software Development Partner | ClickMasters

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ClickMasters resolves complex software bugs for B2B companies across the USA, Europe, Canada, and Australia. Production crashes traced to their root cause using Sentry, distributed tracing, and heap profiling. Memory leaks isolated through heap dump comparison and allocation tracking. Race conditions reproduced and fixed with deterministic concurrency controls. Performance regressions traced to the specific commit, query, or dependency that caused them. And the regression test that ensures the bug never returns.

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Bug Fixing for UK Companies | UK Software Development Partner | ClickMasters

SERVICE DETAIL

Why UK Companies Choose ClickMasters

UK QA for public-facing applications must include UK Equality Act 2010 accessibility testing (WCAG 2.1 AA), UK GDPR data handling verification, ICO PECR cookie consent testing, and sector-specific compliance testing (FCA, NHS) where applicable. ClickMasters delivers bug fixing for UK companies with UK compliance testing integrated. The UK development market has three options: London and Manchester agencies (-�600--�900/day for senior engineers, excellent quality but expensive), large Indian offshore shops (-�150--�250/day but often significant timezone friction, variable quality, and limited UK regulatory knowledge), and ClickMasters (-�350--�500/day equivalent for senior engineers, full GMT/BST coverage, UK GDPR and Cyber Essentials knowledge, and British English throughout). ClickMasters occupies the quality tier of UK agencies at a rate that makes commercial sense for UK scale-ups, growth-stage companies, and enterprise teams with constrained engineering budgets.

  • -�600--�900/day for senior engineers, excellent quality but expensive
  • -�150--�250/day but often significant timezone friction, variable quality, and limited UK regulatory knowledge
  • -�350--�500/day equivalent for senior engineers, full GMT/BST coverage
  • UK GDPR and Cyber Essentials knowledge, and British English throughout

SERVICE DETAIL

UK Market Context for Bug Fixing

Bug Fixing Services We Deliver

ClickMasters operates as a full-stack bug fixing partner. Our team handles every layer of the software delivery lifecycle — product strategy, UI/UX design, backend engineering, cloud infrastructure, QA, and ongoing support.

01
01 / 05

Production Error Triage (Sentry)

Systematic production error investigation: Sentry error analysis (group errors by fingerprint identify the 10 errors with highest occurrence rate and impact, examine breadcrumbs (sequence of events leading to error), stack traces with source map resolution (readable TypeScript stack traces from minified production builds), context (user, URL, browser, OS, app version at error time)), reproduction (reproduce error in staging environment from Sentry breadcrumb trail), root cause analysis (trace error to origin often a data state that should have been validated, a null reference assuming non-null, or race condition between async operations), fix implementation and regression test. We build software that scales with your ambition from first-user MVPs to enterprise-grade, cloud-native systems. Whether you need a multi-tenant SaaS platform, a custom ERP, an API-first integration layer, or a cross-platform mobile app, our approach remains the same, clean architecture, production-ready quality, and infrastructure designed for 10x growth.

02
02 / 05

Memory Leak Investigation

Node.js and browser memory leak diagnosis: heap snapshot comparison (Node.js --inspect mode + Chrome DevTools Memory panel take heap snapshot, perform operation suspected to leak, take another snapshot, compare identify objects accumulated), allocation timeline (Chrome Memory panel allocation timeline identify which code paths allocate objects not garbage collected), common Node.js memory leak patterns (closures holding references to large objects, event listeners not removed, global variable accumulation, stream not properly closed, setTimeout/setInterval callbacks referencing outer scope), fix implementation (remove circular references, properly remove event listeners, implement object pooling for high-allocation paths, close streams and database connections correctly). We build software that scales with your ambition from first-user MVPs to enterprise-grade, cloud-native systems. Whether you need a multi-tenant SaaS platform, a custom ERP, an API-first integration layer, or a cross-platform mobile app, our approach remains the same, clean architecture, production-ready quality, and infrastructure designed for 10x growth.

03
03 / 05

Race Condition Debugging

Identify and fix concurrency bugs: race condition patterns (TOCTOU Time-of-Check-Time-of-Use: check if resource exists, then use it between check and use another process modifies the resource), async/await misuse (forgetting `await` most common Node.js concurrency bug function returns before async operation completes), database concurrency bugs (two transactions updating same row simultaneously one update lost without SELECT FOR UPDATE or optimistic locking), fix strategies (database-level locks for critical sections: `SELECT FOR UPDATE` for explicit row locking, advisory locks for application-level critical sections; idempotency keys for duplicate prevention; database constraints as final safety net rely on UNIQUE constraints to reject duplicate inserts rather than relying on application-level duplicate checks). We build software that scales with your ambition from first-user MVPs to enterprise-grade, cloud-native systems. Whether you need a multi-tenant SaaS platform, a custom ERP, an API-first integration layer, or a cross-platform mobile app, our approach remains the same, clean architecture, production-ready quality, and infrastructure designed for 10x growth.

04
04 / 05

Performance Regression Investigation

Find and fix unexpected performance degradation: git bisect (binary search through commit history to identify the specific commit that introduced the regression automated with a performance test script that fails on regressed behaviour), dependency changelog analysis (library upgrade that introduced regression identify breaking performance changes in changelog), query plan change analysis (PostgreSQL query plan change after statistics update or table growth same query now uses different, slower plan force original plan with `pg_hint_plan` while underlying cause addressed), memory growth profiling (heap snapshot comparison before and after soak test identify objects that accumulated, trace to allocation source). We build software that scales with your ambition from first-user MVPs to enterprise-grade, cloud-native systems. Whether you need a multi-tenant SaaS platform, a custom ERP, an API-first integration layer, or a cross-platform mobile app, our approach remains the same, clean architecture, production-ready quality, and infrastructure designed for 10x growth.

05
05 / 05

Third-Party Integration Bugs

Debug bugs in integrations with external APIs and services: webhook delivery failures (Stripe, GitHub, or Twilio webhook failures examine webhook delivery logs in provider dashboard, verify webhook signature validation, check endpoint availability, identify idempotency failures on retry), OAuth flow failures (inspect OAuth state parameter, PKCE code verifier/challenge matching, token endpoint response, token storage and refresh), API version deprecation (silent breaking changes in third-party API responses implement strict response validation with Zod to catch unexpected schema changes), timeout handling (API timeouts not handled gracefully implement circuit breakers, appropriate timeout values, fallback behaviour for degraded downstream services). We build software that scales with your ambition from first-user MVPs to enterprise-grade, cloud-native systems. Whether you need a multi-tenant SaaS platform, a custom ERP, an API-first integration layer, or a cross-platform mobile app, our approach remains the same, clean architecture, production-ready quality, and infrastructure designed for 10x growth.

Our Bug Fixing Process

A proven methodology that transforms your vision into reality

Phase 1
Week 1-2

Discovery & Requirements

Requirements gathering, stakeholder interviews, and project planning.

Phase 2
Week 2-4

Planning & Design

Solution design, architecture planning, and technical specification.

Phase 3
Week 4-10

Development & Implementation

Development, implementation, and integration activities.

Phase 4
Week 10-12

Testing & Quality Assurance

Testing, quality assurance, and validation activities.

Phase 5
Week 12-14

Deployment & Launch

Deployment, launch preparation, and go-live activities.

Phase 6
Ongoing

Maintenance & Support

Ongoing maintenance, support, and continuous improvement.

Phase 1
Week 1-2

Discovery & Requirements

Requirements gathering, stakeholder interviews, and project planning.

Phase 2
Week 2-4

Planning & Design

Solution design, architecture planning, and technical specification.

Phase 4
Week 10-12

Testing & Quality Assurance

Testing, quality assurance, and validation activities.

Phase 3
Week 4-10

Development & Implementation

Development, implementation, and integration activities.

Phase 5
Week 12-14

Deployment & Launch

Deployment, launch preparation, and go-live activities.

Phase 6
Ongoing

Maintenance & Support

Ongoing maintenance, support, and continuous improvement.

Technology Stack

Modern technologies and frameworks we use to build secure, high-performance digital experiences.

Frontend Development

React.js
React.js
Next.js
Next.js
Angular
Angular
TypeScript
TypeScript
Tailwind CSS
Tailwind CSS
Vue.js
Vue.js

Backend Development

Node.js
Node.js
Python/Django
Python/Django
Laravel
Laravel
Go
Go
Java/Spring
Java/Spring
Ruby on Rails
Ruby on Rails

Mobile Development

React Native
React Native
Flutter
Flutter
Swift/iOS
Swift/iOS
Ionic
Ionic
Kotlin/Android
Kotlin/Android

Database & Storage

PostgreSQL
PostgreSQL
MongoDB
MongoDB
MySQL
MySQL
Firebase
Firebase
Elasticsearch
Elasticsearch
Redis
Redis

Cloud & Infrastructure

AWS
AWS
Google Cloud
Google Cloud
Azure
Azure
Kubernetes
Kubernetes
Terraform
Terraform
Docker
Docker

DevOps & Monitoring

GitHub Actions
GitHub Actions
Jenkins
Jenkins
Prometheus
Prometheus
New Relic
New Relic
Grafana
Grafana

Bug Fixing Pricing

Transparent pricing tailored to your business needs

Discovery (UK Client)
2,800 – 5,500

Perfect for businesses that need discovery (uk client) solutions

Package Includes

  • Timeline: 1-2 wks
  • Best For: Scope, UK compliance review, GMT coverage plan, fixed-price GBP proposal
  • Budget Range: 2,800 – 5,500 AUD
  • Dedicated Project Manager
  • Quality Assurance Testing
  • Documentation & Training
Best Value
Bug Fixing (Standard)
12,000 – 36,000

Perfect for businesses that need bug fixing (standard) solutions

Package Includes

  • Timeline: 2-4 mos
  • Best For: Full delivery, UK GDPR, Equality Act, GMT overlap hours, documentation
  • Budget Range: 12,000 – 36,000 AUD
  • Dedicated Project Manager
  • Quality Assurance Testing
  • Documentation & Training
Custom Enterprise Plan
Custom

Tailored solution for your unique business needs

Custom Package Includes

  • Fully customized solution
  • Dedicated support team
  • Unlimited revisions
  • Priority response time
  • SLA agreement
  • On-site training available
Transparent Pricing
No Hidden Costs
Flexible Engagement
30-Day Support

CEO Vision

To build scalable, intelligent software development solutions that empower businesses to grow, automate, and transform in a digital-first world.

CEO Vision
“
We are not building software. We are architecting the infrastructure of tomorrow systems that think, adapt, and grow alongside the businesses they power. Our mission is to make cutting-edge technology accessible to every ambitious team on the planet.
AK

Amjad Khan

CEO

12+

Years

300+

Projects

98%

Retention

Bug Fixing for UK Companies | UK Software Development Partner | ClickMasters in UK

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Sucess Stories

Software Solutions

That Drives Growth

From concept to completion, we craft enterprise-grade digital solutions that help modern businesses grow, scale, and stay ahead in a competitive market. Our team combines strategic thinking, cutting-edge technologies, and user-focused design to deliver impactful results across web development, mobile applications, AI-powered platforms, and custom software systems. Through our success stories, detailed case studies, and insightful blogs, we showcase how innovative execution transforms ideas into measurable business outcomes.

Explore More

Software Solutions

That Drives Growth

From concept to completion, we craft enterprise-grade digital solutions that help modern businesses grow, scale, and stay ahead in a competitive market. Our team combines strategic thinking, cutting-edge technologies, and user-focused design to deliver impactful results across web development, mobile applications, AI-powered platforms, and custom software systems. Through our success stories, detailed case studies, and insightful blogs, we showcase how innovative execution transforms ideas into measurable business outcomes.

Explore More

FAQ's

Everything you need to know about our process, timelines, technology stack, and post-launch support.

On this page

1Overview2Why UK Companies Choose ClickMasters3UK Market Context for Bug Fixing4Our Services5Why Choose Us6Our Process7Technology Stack8Industries9Pricing10Testimonials11Case Study12FAQ

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CLICKMASTERSDIGITAL MARKETING AGENCY & SOFTWARE HOUSE

A senior software house building web, mobile, and AI-powered systems for ambitious teams across the USA, Europe & Middle East.

marketing@clickmasters.pk+44 7988 576086 | +1 325 202 4074 | +92 332 5394285+44 7988 576086 | +1 325 202 4074 | +92 332 5394285

PWD · Paris Shopping Mall · Islamabad · Pakistan

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