Hire the Best Defect Tracking Specialists in London, UK

I help startups and businesses launch bug-free web and mobile applications through thorough manual QA testing, usability testing, API testing, and detailed bug reporting. I am a Certified QA Engineer specializing in end-to-end manual and automation testing for web, mobile, and desktop applications. With 2+ years of experience, I help ensure your product is reliable, secure, and ready for your users. I’m skilled in both manual and exploratory testing and have a strong understanding of the Software Development Life Cycle (SDLC) and Software Testing Life Cycle (STLC). Throughout my projects, I have: ▪️ Conducted manual, exploratory, regression, smoke, and user acceptance (UAT) testing ▪️ Identified functional, usability, and compatibility issues before product release ▪️ Created clear, detailed bug reports with reproducible steps to help development teams resolve issues efficiently ▪️ Performed cross-browser and cross-platform testing to ensure a consistent user experience ▪️ Worked with tools such as Jira and Postman for defect tracking and API testing My goal is to help teams launch reliable, user-friendly products through detailed test planning, execution, and reporting. Additional Skills: ▪️ Test documentation & reporting ▪️ Cross-browser & cross-platform testing ▪️ API & UI testing (utilising tools such as Postman & Jira) ▪️ Regression, Smoke, and UAT Testing Let’s collaborate to deliver a smooth, bug-free experience for your users. 🚀

Let’s discuss and work together on your projects! . I am a dedicated Quality analyst with Customer satisfaction as first priority. With a strong understanding of software development life cycle and hands-on in test deliveries in Agile and Waterfall , I ensure to deliver high-quality outcomes of work with integrity while maintaining good relationship with co-workers. My Skills set: • Manual Testing(Functional, System, Regression, Integration, Usability and end to end testing) • API • Performance Testing • AI Prompt Testing • Technical Documentation and Writing • Technical Support / Assistance • Project Management • Test plan • Test case design, Execution and documenting • Defect tracking and Reporting and Retest • Risk Assessment - RAIDD • Strong analytical & problem solving • Excellent communication & Team collaboration How and where I can be of help: • Analysing user stories /use cases/requirements for validity and feasibility • Execute all levels of testing (Exploratory, Regression, Smoke & Sanity, Functional, Cross browser, Performance and UAT) • Help AI apps get smarter by testing and providing feedback • Detect and track software defects and inconsistencies, bug reports with annotation • Apply quality engineering principles throughout the Agile product lifecycle • Writing Knowledge Bases and Manuals - Technical Documentation - User Guides • Provide technical support, feedback and recommendations based on best practices What I can offer for the team: • 15+ years of experience as a Software Tester (Web and Mobile) • 8+ years doing management and coordination with developers, PO and operations on a daily basis • Ability to handle multiple tasks simultaneously • Ability to work in a fast-paced environment with minimal supervision • Sense of ownership, critical thinker and problem-solving skills • Excellent interpersonal and communication skills • Team player with Good time-management skills I am very open and flexible on my approach and to discussions to meet each client's needs. Work with integrity. Deliver with quality and excellence.

QA Engineer | Manual & Automation Testing | Mobile, Web, API Detail-driven and quality-focused, I specialize in end-to-end software testing across mobile apps, web platforms, and APIs. I help teams launch reliable, user-friendly products by identifying bugs early, streamlining test processes, and ensuring seamless user experiences. Manual Testing Expertise • Functional, Sanity, Smoke, Usability, Security, Regression • Android App Testing Website & Browser Compatibility • REST API Testing using Postman Automation Testing Skills • Selenium WebDriver BDD with Cucumber JUnit Maven, Playwright • IntelliJ Git Custom Framework Design Database & Methodologies • MySQL Agile & Waterfall Testing Approaches Tools & Technologies • Jira for defect tracking & test management • AWS EC2 & S3 for cloud-based testing environments Domain Experience • Healthcare e-Commerce Energy Management Social Networking • Software Lifecycle Tools Storage & Clustering Systems I bring a methodical mindset, clear communication, and a commitment to quality that helps clients meet deadlines with confidence. Whether you're building a new mobile app or refining a complex platform, I am here to ensure it works flawlessly.

• 20 years’ experience in digital analytics in both implementation (requirements gathering, tagging, tech spec docs, testing, data QA) and as an end-user (analysis, insights, reporting, dashboarding) • Highly experienced in usage of tag management tools including Google Tag Manager, Adobe DTM, Abobe Launch, Tealium, BrightTag/Signal • Expertise in major tools including Google Analytics/GA4, Google Data Studio, BigQuery, Adobe Analytics, Webtrends, Comscore, Klaviyo, Monetate, Ampitude • Comprehensive knowledge of Javascript, HTML, CSS, jQuery, SQL • Worked across multiple sectors agency-side & client side (Automotive | Media | Publishing | Fashion | eCommerce | Travel | Retail | Health/Pharma | Telecoms | Utilities | Sport | Events | Financial Services) • Past work includes: Dr Martens, The Jockey Club, Premier Inn, Arena Racing Co, BP, HeyCar, Brewdog, Beano Studios, Lexus, Disney, CNN, Mail Online, Daily Mirror, Equifax, Warner Music, Rolls Royce UK, Post Office, VISA, Ford, Audi, National Express

Hi there! I’m Nitesh 👋 If you've already tried other freelancers and agencies and you just want your tracking and technical marketing issues resolved once and for all, you've come to the right place. For the last 9+ years I’ve specialised in technical marketing, data engineering and measurement architecture. I’ve worked with brands like NET-A-PORTER, Flo, M&S, Incubeta, ITV, Ramp, MoonPay, and 90+ other businesses, helping them fix tracking issues, optimise marketing campaigns with data & implement trustworthy reporting. In my previous life, I founded and scaled my own e-commerce business to 35 employees across 18 countries, so I understand the commercial reality behind the data - revenue, CAC, ROAS, margin, funnel leaks, operational chaos - all of it. My work isn’t just about implementation, it’s about impact. What I do best ----------------- 📊 Tracking & Analytics Setup - GA4, GTM, Custom DataLayers Clean measurement architecture so you can trust your analytics and improve marketing campaigns - not guess around missing data. This includes consent management integrations (cookie banners) and Google's advanced consent mode. 🔁 Pixel & Conversion Tracking for Ad Performance - Meta, Google, TikTok, Pinterest & more Implementing pixels, server-side tracking, CAPI + enhanced conversions to improve optimisation efficiency and reduce wasted spend. 📱 Mobile App Analytics & Attribution - AppsFlyer, Adjust, Firebase End-to-end mobile measurement: SDK setup, in-app events, revenue tracking, SKAN support & attribution mapping across iOS/Android. 🏗 Data Modelling & Transformation for BI - BigQuery + Dataform/DBT Building centralised data pipelines with robust modelling, cleaned tables and business-ready datasets for reporting, dashboards and faster decision-making. Tools & Platforms I work with daily ---------------------- - Google Tag Manager (client & server-side), GA4, Consent Mode & Cookie Compliance - CDPs - Segment / Rudderstack - Product - Mixpanel, Amplitude - Pixels - Meta Pixel + CAPI, TikTok Pixel + Events API, Pinterest, Twitter etc - Google Ads (Conversions, Remarketing, Enhanced Conversions) - BI & Reporting - BigQuery, Big Lake, DBT, Dataform, Looker, Metabase & more - Infra - Google Cloud (Cloud Run, Functions, Load Balancers, Terraform, Git) I've worked with nearly 100 clients - naturally, you learn to adapt and upskill across different stacks. If you’re looking for someone who can get your tracking right, boost signal quality for your campaigns, or unify your data for clearer reporting - I’d love to chat. Drop me a line, I'd be happy to help!