Jobs at Vertex Solutions International Ltd

Hybrid Software Developer in Test (SDET) to build a new digital bank. Develop object-oriented code with Kotlin/Java/JavaScript, design for testability, implement automated tests (Cucumber/Capybara/Selenium), integrate CI (Jenkins/TeamCity), review designs, analyze code, assess risk, and use Jira for tracking.

Contract Java Developer to build a brand-new digital bank. Work on core Java development within banking/finance projects in a fast-paced, innovative environment. Rolling contract with growth opportunities.

Develop and maintain modern C++ (C++11/14/17) software for embedded hardware, working with Boost and SDKs. Collaborate on AI/ML and mobile integration and deliver production-ready embedded solutions.

Contract role to automate and execute functional tests for a desktop application using Squish. Develop and maintain test automation scripts (Perl/Bash/Python), collaborate within an R&D/semiconductor team, and contribute to test strategy and execution in a fast-learning environment. Based in Central London (rolling contract).

Backend-focused Java full‑stack developer to build banking and payments systems. Work with large-volume data and large online platforms, using cloud, microservices, Kubernetes, and optionally Kotlin and Golang. London-based, long-term contract.

Join a fast-paced team building a new digital bank platform from scratch. Develop backend services using JVM languages, design distributed systems, work on database development, and contribute high‑quality engineering across the platform.

Full‑stack web developer to build a new healthcare web application from a clean sheet. Work across front end (JavaScript, AngularJS) and backend (Node.js) and implement automated tests using Mocha/Chai, SinonJS and PhantomJS. 6‑month rolling contract based in Belgium.

Develop backend Java-based tools for an IoT-focused technologist, including desktop tools, IDE plugins or smartphone apps. Work on APIs, tooling, and potentially JavaFX-based UIs, using Eclipse or IntelliJ for development.