Top Tech Jobs & Startup Jobs in London

Participate in a 60–80-minute moderated remote usability study about sending money from the UK to India. Discuss current money-transfer methods, complete an approximately $20 transfer using the tested mobile application, and provide spoken feedback during a recorded video session. Participants must be UK residents, use an online transfer service, have not previously used Wise, and have an iOS or Android device. Compensation is $100 per hour plus reimbursement of the transfer amount.

Conduct functional testing of a streaming app on Titan OS Smart TVs in Germany. Install app builds, execute test cases covering navigation, playback, login, subtitles, audio, localization, live events, and content discovery. Document defects with reproduction steps and screenshots or recordings, and provide feedback. This is short-term freelance work during October and November, with flexible scheduling and expected assignments of 2–4 hours, sometimes up to 12 hours.

Conduct functional testing of a streaming app on Titan OS Smart TVs in Austria. Install app builds, execute test cases covering navigation, playback, login, subtitles, audio, localization, live events, and content discovery. Report defects with reproduction steps, screenshots, or recordings and provide feedback. The work is short-term, freelance, flexible, and typically requires 2–4 hours per test run, with occasional longer assignments.

Conduct functional testing of German voice-control and speech-recognition features in an on-site Vienna environment. Testers will use provided devices, complete a short 3–4 hour testing task, and create a Testlio account using a personal laptop, PC, or MacBook. Native German proficiency and physical presence in Vienna are required; previous software testing experience is helpful but not required.

Freelance software testers will perform functional testing of a streaming platform on various Smart TV devices in Austria. Responsibilities include installing app builds, executing test cases for playback and navigation, reporting defects with reproduction steps and media, and providing feedback. Testing occurs remotely across prelaunch, launch, and ongoing weekly runs. Software testing experience is helpful but not required, as training courses are available.

Lead a remote platform engineering team responsible for core testing capabilities. Set technical direction, modernize legacy systems, build agentic and LLM-powered workflows, partner with product on roadmap delivery, and contribute hands-on to production code. Own reliability, observability, production support, application security, engineering standards, and team development while improving system scalability and reducing technical debt.

Design and implement scalable, production-grade services and architectures to transition a monolith into modular services. Define architectural standards, integrate secure AI/LLM patterns, ensure AWS-based high availability and cost/security practices, and advise product and exec teams on technical tradeoffs.

Lead Testlio’s payments testing strategy, service offerings, methodologies, staffing, and pricing. Partner with enterprise clients and sales teams, design testing approaches for complex payment architectures, troubleshoot integrations, oversee delivery quality, and solve transaction integrity, security, and compliance challenges. Develop thought leadership, support alliances and go-to-market initiatives, and guide strategic payments engagements across mobile, online banking, wallet, gateway, and POS systems.

Remote freelance functional tester to create a PayPal Business account for an Italian Limited Company, record bugs, and report issues via Testlio. Requires brief account setup and a paid ~2-hour testing session. Work is paid hourly and done remotely.