Leslie R.-Senior Test Engineer
Check rate
Experience
QA Engineer
Florio GmbH
Working as a QA Engineer within a regulated digital health environment, supporting structured test planning, test analysis, verification evidence and release readiness across mobile and web applications.
Creating, maintaining and executing manual and automated (MAESTRO, Katalon, Cypress) functional, regression and SIT test cases for iOS, Android and web platforms. Performing daily activities using Jira, Xray, Confluence, BrowserStack and staged test environments.
Supporting traceability between requirements, risks, test cases, defects and test results, helping ensure QA evidence is clear, auditable and suitable for regulated software delivery.
Collaborating with development, product, medical, regulatory and business stakeholders to clarify requirements, investigate defects, assess severity and priority, and reduce release risk.
Applying ISTQB, Agile and SAFe testing principles across mobile apps (as mobile medical devices), web platforms, system integration and regulated documentation.
Using AI products and open-source AI tools to support QA activities, including test case design, user story analysis, test data creation, process optimisation and regression coverage estimation.
Test Manager
Vector QA
Leading onshore (4 resources) and offshore teams (7 resources), guiding the QA process, test planning and analysis. My aim is bridging the technical and business aspects of SDLC for all parties.
Engaging with Chat GPT and Open AI products for software QA.
Prototyping AI enhanced QA solutions (BPMN) and test coverage estimation.
Utilizing opensource AI tools for user stories generation, automated regression testing, test case, process optimization and test data creation.
QA Analyst
Mitel GmbH
Testing integration, compatibility, regression, functional, system integration and UAT testing for multidevice platform with ongoing product releases. Operating both functional and non-functional testing of multiplatform solutions (requirements documents and design - (BPMN)).
Platforms including web applications, mobile and desktop apps using a selection of tools including JIRA, Appium, Postman, Kubernetes, TeamCity, CI/CD (TeamCity/GitLab), SAP CRM, JavaScript, 3UTools, Android Studio, Java. Stack included OSX, IOS, Android, Windows and Linux.
Automated user interface using Selenium Web (Python, JSON), Ranorex and Project Test.
Working with and providing guidance and control for offshore teams, reporting, defining KPIs, process review and definition. Confirmation of adherence to principles of the SAFe and Agile frameworks.
Test Analyst
Telefónica Germany
During this project, I identified key points in the architecture to implement monitoring measures that detect sudden changes in Telefonica call and data usage, revealing fraudulent activities, SIM duplications, and other anomalies.
Collaborating with the system architect, developers, and network security teams, I defined test scenarios—including functional tests, user journeys, and regulatory tests—to mitigate revenue losses. We then created targeted test data and cases to validate the triggers and logs.
Technical / Organizational Analyst
Telefonica GmbH
- Worked in a technical, organizational, and analysis position.
- Remained detail-oriented while managing project overviews.
- Recognized as a good organizer who is pleasant to work with.
QA Test Lead
Jaguar Land Rover
Investigation and development of a waterfall-based QA solutions framework. testing end to end functions of vehicle production. SAP integration with CRM to MM & SD (Production Ordering and Materials Solution) and some FI/CO (OM Payments).
Implemented HP ALM for test ownership, defect tracking, and business requirements documents, coverage, reports etc.
MES, HMI, HiL, SAP CRM, BiW, digital controls verification.
Combined functional and technical testing through the business workflow (Visio, Lucid).
Optimized reporting, reducing spurious and duplicated defect creation by 25%.
Test Lead / Senior Test Engineer
E.ON IT UK
- Applied a significant grasp of testing methodology to planning, automating, and executing tests.
- Predicted and navigated issues, producing solution options proactively before being prompted.
- Acted as a Test Lead and Senior Test Engineer, ensuring delivery to the required quality scale while meeting project timelines.
- Provided comprehensive testing metrics via daily and weekly reporting.
- Served as an excellent QA specialist with an ever-expanding depth of knowledge in various technologies used for project and product delivery.
QA Analyst
E.ON UK
IVR PCI Call Recording, Telephony, HP ALM, specifications, requirements generation, test execution, defect reporting, and triage management reporting.
Test case creation from requirements, test strategy and approach.
Testing UAT with business and friendly user groups. Contact center etc.
Geneva Billing System, Test Laboratory, IVR, VM (Doker/Kubernetes), PCI, Call Recording, Telephony, HP ALM, Docker, JIRA, Loki, Smart Meter testing (Java & Python), IVR/Bot testing, Payments, Billing/CRM testing, System testing.
Lead Tester
ESP Systex
Manage both the creation and operation of a new testing team.
CMS, Web Portal, Vantive CRM Solutions, JIRA, Zephyr, Regulatory Testing (WCAG).
Facilitating communication with internal teams and external stakeholders.
QA Lead
ESP Systex Group
Manage both the creation and operation of a new testing team.
CMS, Web Portal, Vantive CRM Solutions, JIRA, Zephyr, Regulatory Testing (WCAG).
Facilitating communication with internal teams and external stakeholders.
Senior Test Analyst
KCOM Group PLC
SAP PI, ERP, Billing, CRM provisioning, banking interfaces, debt escalation, and stakeholder management. (Security Cleared)
Senior Test Engineer
Birmingham City Council IT Services
- Worked on a large payment system for Service Birmingham where technical expertise was vital to project success.
- Consistently delivered against project timescales to a high standard.
- Served as a positive team member and strong communicator with all project stakeholders.
SAP Finance Tester
Service Birmingham
SIT testing payments system upgrade, SAP CRM, SAP FI/CO, infrastructure and functional testing, and regulatory compliance verification.
Technical Tester
DHL
Focused on testing E2E messaging systems, international corporate payments, and regulatory adherence on supply chain services at the DHL Global Data Centre.
Test Analyst
William Hill Online
Created test approaches, strategies, and executed test cases for online gaming services.
API Tester
Tele 2
Integration testing for Siebel 8.1 CRM, Web Methods, and other subsystems.
Test Manager
EACI (European Commission)
Managed QA process and resources for legacy system replacement project.
Quality Assurance Specialist
European Commission (EACI)
- Dealt with software development quality in both pragmatic and structured ways for the EACI project.
- Identified gaps in the IT development process to support the growth and maturity of the team.
- Provided solid experience and maturity in the overall IT development process.
Lead Tester
Sony TVTV
Managed testing for large-scale import mediation and supply of EPG data.
QA Specialist
Sony TVTV (tvtvServices)
- Worked for tvtvServices during an assignment in Munich.
- Focused on details and committed to high-quality work output.
- Operated autonomously to troubleshoot problems while maintaining a strong sense of team spirit.
- Contracted via Berkley Square IT.
UAT Test Analyst
Capita/Birmingham Council
Operated the UAT phase of the Customer First Transformation Project.
BRT Test Analyst
Hutchison 3G
Developed and executed test plans for the My3 customer account management system.
Senior Test Analyst
Insolvency Service Gov
Managed testing for government body projects, including data workflows and batch processes. (Security Cleared)
Test Planner / QA Specialist
Tele 2 / Hutchison Telecommunications (Three)
- Worked at 3 on a project in the customer 'self care' area involving both web and mobile platforms.
- Responsible for test planning and execution, stakeholder communication, and problem resolution with the systems integrator.
- Provided deep experience in test and testing methodologies.
- Recognized as a creative, self-motivated, and independent professional who maintains strong relations with both company employees and consultants.
Senior Test Lead
Siemens / Roke Manor Research
Build and test the extension of the London Congestion Charging System, HiL, DOORS
Software Tester
Siemens Traffic Controls
- Worked as part of a test team supplying software, demonstrating diligence and technical proficiency.
- Adept at using a wide variety of software tools and technologies.
- Contributed extensively to the team through a deep understanding of testing theory and practice.
Test Lead
N-Power
Assisted in testing customer journey business processes and external API testing.
Lead Software Tester
UPS NL
- Took the lead and assumed full responsibility for testing assignments.
- Demonstrated ability to easily fit into the organization as a highly skilled and experienced software tester.
- Proved to be a very social person and always ready to help colleagues.
Test Analyst
UPS-SCS
Functional and technical testing for Java web applications and Oracle databases.
Technical Tester
ONE Telekom
C4One (Custom CRM Package, Geneva 4.2, 5.1, 5.2 Unix (Tru 64), AMD HLR, Provisioning, Oracle, SQL, Unix Script Automation, Provisioning, Event Mediation, Data origination
Test Analyst
Viag Interkom
SALCUS, Kenan Arbor, Number Porting, Event simulation (CDR production etc), Provisioning, Event Mediation, Reflection X, CDR Production, EAI Tibco, SQL, SQA Robot, Rational SQA Test
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Telecommunication, Information Technology, Government and Administration, Utilities, Transportation, and Healthcare.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Quality Assurance, Project Management, Operations, Production, and Finance.
Summary
I am an ISTQB-certified Quality/Test Engineer with more than 25 years of hands-on software testing experience, including over 7 years in telecoms. I plan and execute manual and automated testing across web, mobile and desktop platforms, with strong experience in functional, integration, regression, system, UAT and API testing.
I use tools and frameworks including Katalon, Ranorex, Cypress, MAESTRO, Selenium, Appium, Postman, Jira, Xray and HP ALM. I also apply SQL for data verification and work with Agile and SAFe teams. My experience spans regulated digital health, telecoms, energy, automotive, payments, government and logistics, including QA leadership, test strategy, traceability and release readiness.
Skills
Technical Skills/Tools
- Automated Testing
- Manual Testing
- System Testing
- Ai Integration
- Integration Testing
- Docker
- Regulatory And Audit Testing
- Ios/Android Testing
- Confluence
- Jira
- X-Ray
- Istqb (Agile Tester Foundation)
- Documentation
- Uat-Lrt-Brt
- Postman/Soap-Ui
- User Stories
- Hp Alm (Opentext)
- Sql (Ms-Sql, Nosql)
- Ms Office, Adobe Creative Suite
- Katalon, Ranorex, Selenium Web
Soft Skills
- Analytical Skills
- Problem-Solving Competence
- Pragmatic
- Experience In Multicultural Teams
- Abstract Thinking
- Conflict Resolution
Languages
Education
Solent University
BA · Economics
Certifications & licenses
Certified ChatGPT Prompt Engineering Professional (CCPE-Pro)
MiSDLC Security Fundamentals
UC
Statistics
Experience
Global experience
Expertise
Qualifications
Frequently asked questions
Have questions? Find more information here.
Leslie is based in Munich, Germany and prefers 100% remote projects.
Leslie speaks the following languages: English (Native), German (Elementary).
Leslie has at least 25 years of experience. During this time, Leslie has worked in at least 23 different roles and for 31 different companies. The average length of individual experience is 1 year and 10 months. Note that Leslie may not have shared all experience and actually has more experience.
Based on recent experience, Leslie would be well-suited for roles such as: QA Engineer, Test Manager, QA Analyst.
Leslie's most recent position is QA Engineer at Florio GmbH.
In recent years, Leslie has worked for Florio GmbH, Vector QA, and Mitel GmbH.
Leslie is most experienced in industries like Telecommunication, Information Technology, and Government and Administration. Leslie also has some experience in Utilities, Transportation, and Healthcare.
Leslie is most experienced in business areas like Information Technology, Quality Assurance, and Operations. Leslie also has some experience in Production, Project Management, and Finance.
Leslie has recently worked in industries like Information Technology, Telecommunication, and Healthcare.
Leslie has recently worked in business areas like Information Technology and Quality Assurance.
Leslie holds a Bachelor in Economics from Solent University.
Leslie has 5 certificates. Among them, these include: Certified ChatGPT Prompt Engineering Professional (CCPE-Pro), Certified ISTQB® Agile Tester Foundation Level, and Certified SAFe® 5 Practitioner.
Leslie will be available full-time from December 2026.
Daily rate distribution
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 30 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
Similar freelancers
Discover other experts with similar qualifications and experience
Sebastian N.
Waleri M.
Martin P.
Humayun S.
Knut N.
Eric B.
Meryem G.
Matthias O.
Isa G.
Johannes E.
Experts recently working on similar projects
Freelancers with hands-on experience in comparable project as a QA Engineer
Ljubomir O.
Wael M.
Karlheinz G.
Yannide D.
Johannes H.
Ivan A.
Max E.
Stéphane T.
Michael S.
Vitor R.
Nearby freelancers
Professionals working in or nearby Munich, Germany
Mohammed N.
Viaceslav K.
Tony S.
Max R.
Alexander R.
Florian S.
Olga B.
Roland C.
Paul W.
Athanasios S.
