Senior QA Test Engineer

At Zaizi, we are on the lookout for a dedicated Senior QA Test Engineer who possesses a genuine enthusiasm for technology and a strong analytical mindset. This role requires exceptional communication skills as it involves direct interaction with clients and hands-on learning within their projects. We believe in nurturing talent and are committed to providing…

Join Talan as a Trade Floor Support Engineer, where you will play a critical role in providing technical support for trading systems and applications. You will collaborate with traders and other stakeholders to ensure optimal performance and functionality of trading platforms.Your responsibilities will include diagnosing and resolving technical issues, performing routine maintenance, and assisting with the implementation of new functionalities. You will also have the opportunity to contribute to system enhancements and collaborate with development teams.

Plain builds customer support software for B2B companies. Our mission: help organizations move from reactive support to building real customer relationships. Teams like Cursor, Vercel, and Granola use Plain to streamline customer interactions, improve team collaboration, and strengthen workflows with AI-powered tools. The B2B support landscape is changing quickly. AI is shifting support from a siloed function to something that touches the whole company, often across platforms like Slack and Discord. Old approaches, slow, manual, disconnected, no longer fit. This role follows a hybrid model. Expect to spend three days each week in our London office. What you will do Build across the stack: frontend, backend, and everything in between. Ship features that are fast, reliable, and a pleasure for users. Shape product and technical direction by working closely with design, engineering, and leadership. Partner with customers to understand their needs and create thoughtful solutions. Help foster a product-focused engineering culture. What we look for Experience delivering features end-to-end, especially in fast-moving teams. Initiative and strong problem-solving skills; able to drive projects and improve how things work. Focus on customer success; values user experience as much as code quality. Interest in engaging with customers and shaping the product, not just executing tasks. Care for craftsmanship and enjoys building simple, effective, polished products. Wants to grow in a collaborative team and have a say in company practices.

Role Overview Zaizi is hiring a Senior Systems Engineer (SFIA4) to help deliver advanced technical solutions for the UK Defence and National Security sector. This position is based in London and focuses on building mission-critical systems that blend Cloud-native architectures, data-driven tools, and Artificial Intelligence within safety-critical settings. What You Will Do Guide technical execution for complex defence and national security programs. Integrate modern Cloud-native technologies, data-centric decision-making platforms, and AI into secure, high-stakes environments. Act as the connection between strategic goals and hands-on engineering, ensuring digital technologies meet the security and rigor required for national defense. Influence customer direction at the executive level and oversee complex system integrations throughout the full systems lifecycle.

Location: London, United Kingdom (Work Anywhere policy) About Veeva Systems Veeva Systems Inc. builds industry cloud solutions for life sciences companies, helping them bring therapies to patients more efficiently. In the last fiscal year, Veeva surpassed $3 billion in revenue and continues to see strong growth. The company operates as a public benefit corporation (PBC), balancing the interests of customers, employees, society, and investors. Veeva values doing the right thing, customer success, employee success, and speed. The company’s Work Anywhere approach lets employees choose whether to work from home or the office. Learn more about Veeva’s mission to transform the life sciences landscape. Role Overview The Senior Quality Assurance Engineer will join Veeva Link, the team building the intelligence layer for life sciences. Veeva Link develops interconnected data applications that support faster drug development and better patient outcomes. The team combines high-quality data and modern software to deliver reliable applications and strong user experiences. What You Will Do Contribute to data-driven insights by supporting advanced applications that map global scientific and medical expertise, providing impactful insights and AI-generated intelligence Work on challenges such as complex data modeling, entity resolution, and machine learning Help design and validate intelligent business workflows, including scalable pipelines and automation powered by AI Apply a focus on speed, precision, and quality in daily work, following clear product definitions and technical designs Use a modern tech stack to ensure applications are reliable and deliver an excellent user experience About the Team Data-Driven Insights: Building applications that analyze and interpret global scientific and medical data, using AI and advanced modeling Intelligent Business Workflows: Creating workflow tools that use data and AI to identify patterns, route information, and automate processes efficiently

Role overview Faculty seeks a Lead Computer Vision Engineer to join its London office. This position leads a group of engineers and partners closely with data scientists to deliver advanced computer vision systems. The team supports a range of projects across different industries, with a focus on practical uses of artificial intelligence in real-world settings. What you will do Guide the design and implementation of algorithms for image and video processing tasks Direct and mentor engineers tackling computer vision problems Work with data scientists to develop solutions that address industry needs Location This position is based in London.

Director of Application Engineering and ArchitectureReference Number: JR255016Location: Hybrid working - home and our office located near London BridgeWorking Pattern: Full Time, 37.5 hours per weekContract Type: PermanentNumber of Roles: 1Salary: CompetitiveWe are seeking an experienced Director of Application Engineering and Architecture to lead our innovative team.This pivotal senior leadership position reports directly to the VP of Information Technology. You will play a critical role in shaping the design, construction, and delivery of technology solutions, ensuring that our platforms and applications are scalable, reliable, and aligned with our business objectives. You will manage teams responsible for the design, development, and support of applications, overseeing the engineering processes throughout the organization. This includes establishing clear standards and guidelines while ensuring that decisions made are beneficial for both current operations and future growth.This is a remarkable opportunity for a dynamic Technology Leader eager to advance their career with an industry frontrunner.For a detailed job description, please view here. If the link does not work, copy and paste the following URL into your web browser: https://tinyurl.com/y7ud595b.

Who We AreSamsara (NYSE: IOT) is at the forefront of the Connected Operations™ Cloud, a transformative platform that empowers organizations reliant on physical operations to capitalize on Internet of Things (IoT) data. Our mission is to enhance the safety, efficiency, and sustainability of the foundational sectors driving the global economy. Representing over 40% of global GDP, these industries—including agriculture, construction, field services, transportation, and manufacturing—are critical infrastructure, and we are excited to lead their digital transformation.Joining Samsara means you will play a vital role in defining the future of physical operations. You'll collaborate with a dynamic team focused on developing innovative product solutions such as Video-Based Safety, Vehicle Telematics, Apps and Driver Workflows, and Equipment Monitoring. As a recently public company, we provide the autonomy and support needed to make a significant impact as we build for the long term.About the Role:In this newly established Staff Software Engineer position, you will design the technical architecture necessary for global fleet sustainability, focusing on digitizing the vast transport and infrastructure sectors that support our world. Our goal goes beyond traditional cost-saving measures; we prioritize resource efficiency on a global scale.At Samsara, our Staff Engineers are proactive technical leaders who integrate high-level architectural strategies with a determined builder mindset. They operate with empowered autonomy, addressing the most complex challenges at the intersection of physical and digital operations.Unlike conventional architects, they maintain a close connection to the implementation, actively contributing to the codebase to foster rapid innovation and sustain development momentum. Their leadership serves as a force multiplier, elevating the technical capabilities of the team through insightful mentorship and pragmatic decision-making, ensuring that every line of code has a measurable impact on the world’s essential industries.In this role, you will spearhead the technical strategy for our Sustainability suite—transforming raw, inconsistent sensor signals into high-fidelity data for precise energy monitoring, and constructing the intricate global infrastructure necessary for fleet electrification.

Join Interpath Advisory, a dynamic and rapidly expanding global advisory firm renowned for its wide-ranging expertise in deals, advisory, and restructuring services. We pride ourselves on delivering impactful solutions for international businesses, investors, and stakeholders during critical junctures and complex challenges.Since our establishment in 2021, we have experienced impressive growth, establishing a footprint across the UK, Ireland, France, Germany, Austria, Spain, BVI, Cayman Islands, Bermuda, Barbados, and Hong Kong. Our vision is to become one of the world’s foremost advisory firms by 2030, known for our agility, independence, and unwavering commitment to ethical practices.We are seeking a talented Integration & Separation (I&S) Manager to join our innovative team. In this pivotal role, you will be instrumental in managing significant Integration and Separation transactions from inception through execution, collaborating closely with senior management and a variety of stakeholders to tailor integration and separation strategies that align with the distinct needs of our clients.This role offers a unique chance to contribute to a fast-paced, entrepreneurial environment where you can leverage your expertise to deliver exceptional programs. We are looking for individuals who thrive in non-traditional settings and are eager to make a real impact as key contributors.Key Responsibilities:Act as a vital member of the delivery team for integration and separation projects, ensuring successful outcomes within budget and schedule constraints.Lead multiple workstreams across projects, taking ownership of each project phase (discovery, design, planning, execution) while managing client interactions and cross-functional teams.Identify potential risks and issues throughout projects and ensure robust communication and stakeholder management.Conduct thorough pre-deal due diligence to identify synergy opportunities and develop integration strategies, including day-one readiness assessments.Track and report on project milestones, providing regular updates to senior leadership.Oversee all project management functions, including planning, resource allocation, risk management, and communication.Mentor and develop junior team members to enhance their skills and experience.

Company OverviewDeductive AI is pioneering the development of the world's first real-time reasoning engine designed to identify and mitigate large-scale software outages. By employing advanced reasoning techniques on distributed systems, code, and statistical anomalies, we analyze vast amounts of telemetry data—including metrics, logs, traces, and events—in real-time. Our accomplished team boasts decades of experience from industry leaders such as Databricks, Facebook, Thoughtspot, Google, Splunk, and Amazon. Backed by top-tier venture capital firms, we are well-positioned for growth and innovation.Internship OverviewWe are looking for innovative interns to join our team and engage with cutting-edge technology. You will tackle fascinating challenges at the intersection of artificial intelligence, code understanding, and data analytics. Your work will involve distributed systems, the development of AI agents, and the fine-tuning and benchmarking of Large Language Models (LLMs).This is a paid, on-site internship based in Camden, London. As a Software Engineer Intern at Deductive AI, you will have the opportunity to contribute to the next generation of foundational code and data processing systems that can reason over extensive datasets, both structured and unstructured. We are committed to aligning projects with your skillset and preferences.

At Frontify, we are dedicated to helping brands transform their ideas into impactful realities.Our innovative brand platform revolutionizes the way teams manage digital assets, collaborate on projects, and execute compelling campaigns. We empower thousands of marketers and designers, including renowned teams from Uber, Microsoft, Volkswagen, and Telefónica, to create engaging brands.With our headquarters in St. Gallen, Switzerland, and offices in London and New York City, we foster a vibrant culture rooted in creativity, collaboration, inclusion, and joy. We invite passionate individuals to join us on this exciting journey. If you're ready for a new adventure, we encourage you to explore this opportunity!Your TeamYou will collaborate with Frontify's commercial teams, which include Sales, Customer Success, and Revenue Operations. Our teams are international, motivated, and work collaboratively across Europe and New York. With a strong customer-centric focus, they are committed to onboarding new, beloved brands and helping them bring their visions to life in innovative ways.Your MissionAs a Key Account Manager, your primary mission is to be a trusted advisor and a catalyst for revenue growth among Frontify’s esteemed clients. You will oversee account renewals, identify and secure expansion opportunities, and cultivate enduring relationships with a diverse portfolio of high-potential enterprise accounts. By employing strategic account planning and your commercial acumen, you will align client objectives with Frontify’s cutting-edge solutions, enabling customers to achieve their goals while driving measurable outcomes for our organization.

About the RoleWe are seeking a talented Senior Backend Engineer to join our Research & Development team at ThreatAware. In this pivotal role, you will collaborate directly with our CTO to develop the next generation of our platform. You will empower security teams to create AI-driven workflows, automate critical decisions, and interact with their data in innovative ways. This position involves profound backend development tasks, including designing abstractions, prototyping agent-based patterns, and transforming visionary ideas into real-world systems. If you're passionate about pushing boundaries in AI and cybersecurity, this is the perfect opportunity for you.Why Choose ThreatAware?At ThreatAware, we provide security teams with a comprehensive source of truth for every device and tool within their organization. With over 150 integrations, our platform can be deployed in under 30 minutes, delivering real-time visibility across complete IT estates. Industries such as finance, legal, energy, and healthcare rely on us to identify what is secured and what isn't.We are now embarking on a larger initiative. Building on six years of precise cyber asset data, we are integrating AI capabilities to offer security teams new avenues for data interrogation, workflow automation, and proactive risk management. You will play a central role in bringing this vision to life.Your ResponsibilitiesAs a Senior Backend Engineer, you will:Design and develop the AI composition layer that drives the next chapter of ThreatAware.Architect backend systems that facilitate the dynamic integration of data sources, AI reasoning, and automated security actions.Create APIs, data models, and execution engines for complex, multi-step workflows, ensuring they are scalable, resilient, and observable.Prototype and validate agentic patterns, including multi-agent collaboration and hierarchical reasoning, utilizing LLMs.Ensure AI outputs are grounded in accurate cyber asset data by developing retrieval systems, validation checks, and confidence indicators.Incorporate security as a fundamental aspect of your work, focusing on authentication, authorization, audit logging, and data protection.What We Are Looking ForExtensive backend engineering experience in building large-scale, production systems with a strong emphasis on system design and architectural thinking.Proficient in Python, TypeScript, or similar languages, with a solid track record in designing APIs, databases, and event-driven systems.Hands-on experience with cloud infrastructure, preferably AWS, including serverless architectures, messaging, and containerized services.A strong interest in AI and LLMs, ideally with experience in integrating AI with backend systems or developing AI-native applications.

Join Zopa as a Senior Software Engineer specializing in C#. In this role, you will leverage your technical expertise to build innovative solutions that enhance our digital offerings. Collaborate with cross-functional teams to design and implement scalable software applications, while maintaining a focus on performance and security.

Join physicsx as a Senior Software Engineer specializing in Forward Deployed Applications. In this role, you will leverage your expertise in advanced software development to create robust applications that meet the unique needs of our clients. You will work in a dynamic environment that fosters innovation and collaboration, playing a key role in shaping the future of our technology solutions.

About UsPerk, previously known as TravelPerk, is a pioneering platform specializing in travel and expenditure management. Our mission is to eliminate tedious manual tasks that distract from core business activities. Our innovative tools automate various processes, from travel bookings to expense management and invoice handling. By reducing the burden of shadow work, which can result in significant productivity losses and diminish employee morale, we're committed to enhancing overall workplace efficiency.Trusted by over 10,000 companies globally, including industry leaders such as Wise, On Running, Breitling, and Fabletics, we are addressing the staggering issue of lost productivity—averaging 7 hours per employee weekly, a challenge that costs businesses around $1.7 trillion.Founded in 2015, Perk has expanded into a global presence with over 1,800 employees across 12 international offices, with key headquarters in London and Boston. Our culture is centered around innovation, control, and simplicity, transforming the way businesses operate and enhancing employee well-being.Driven by our core values of ownership, delivering exceptional experiences, and teamwork, we embrace curiosity and purpose, emphasizing a growth mindset. Our diverse talent pool draws from the travel and SaaS sectors across more than 70 countries. If you are passionate about making a tangible impact and enhancing the work experience for millions, we would love to have you on our team.To learn more, visit www.perk.com.

About Us at GoCardlessGoCardless is a global bank payment solution provider. More than 100,000 businesses, from innovative start-ups to established brands, trust GoCardless for their payment collections via direct debit, real-time payments, and open banking.We facilitate the processing of over US$130 billion in payments annually across more than 30 countries, enabling customers to efficiently manage both recurring and one-off payments without the hassle or high fees. Our AI-driven technology enhances payment success rates and minimizes fraudulent activities. With connectivity to over 2,500 banks through open banking, we empower our customers to make faster and more informed decisions.Headquartered in the UK, we have offices in London and Leeds, along with additional locations in Australia, France, Ireland, Latvia, Portugal, and the United States.At GoCardless, we prioritize supporting you! Our hiring process is designed to be inclusive and accessible. If you require any assistance or adjustments, please reach out to your Talent Partner — we are here for you!Remember, you don’t need to fulfill every requirement to apply. If you are excited about this role, we encourage you to apply!The RoleThis is a contract role with a daily rate lasting for 3 months, with the possibility of extension up to 6 months. You will spearhead the engineering efforts that support the search functionality in our merchant dashboard — the main interface used by thousands of businesses to manage their customers and payments on GoCardless.Search functionality is vital for our merchants. Whether they are searching for a specific customer, tracking a payment, or reconciling transactions, they depend on an efficient search system to access the right information swiftly. You will design and implement a robust, high-performance search solution that is relevant, fast, and resilient at scale.This hands-on engineering position requires close collaboration with our Product Engineering and Platform teams, contributing production-ready code and pairing with engineers throughout your engagement. A key measure of success will be how well the team can maintain and evolve the system after your departure.

InvestorFlow stands out as a unique provider of specialized CRM solutions tailored for the alternative asset industry, leveraging the Salesforce platform to enhance productivity and transparency for firms seeking new opportunities and managing client relationships.We are looking for a Mid-Level DevOps Engineer to play a crucial role in advancing our Salesforce continuous integration and continuous deployment (CI/CD) capabilities, while also contributing to wider infrastructure and automation initiatives. This position is perfect for Salesforce Developers who are passionate about CI/CD and automation or for DevOps engineers eager to deepen their expertise within the Salesforce ecosystem.Join a collaborative team that prioritizes automation, reliability, and an excellent developer experience. Whether you come from a Salesforce development background with a strong commitment to optimizing deployment processes or are a DevOps engineer ready to face the distinct challenges posed by the Salesforce platform, we are committed to supporting your professional development through training, certifications, and hands-on involvement with our technology stack.In this role, you'll report to the VP of DevOps, working with a degree of independence on team-focused projects while collaborating with senior engineers on broader departmental initiatives.

Join WatershedWatershed is at the forefront of enterprise sustainability solutions, empowering businesses such as Airbnb, Carlyle Group, FedEx, Visa, and Dr. Martens to effectively manage climate and ESG data. Our platform generates audit-ready metrics for both voluntary and regulatory reporting, including CSRD, while driving genuine decarbonization efforts. We seek passionate individuals eager to build impactful products, thrive in a mission-driven startup environment, and contribute to shaping the culture of an expanding team.With offices in San Francisco, New York, Denver, London, Paris, Berlin, Sydney, Mexico City, and a remote workforce across the US and Europe, we hope you’ll consider being part of our journey!Your RoleWe are in search of a dedicated software engineer to join our sustainability AI reporting team. As a key member of a cross-functional team, you will develop cutting-edge AI tools that assist businesses in managing and reporting their sustainability progress. Utilize LLMs, embeddings, and other AI technologies to deliver customer-centric features and help establish the technical framework for AI at Watershed.This position is based in our London HQ for 4 days a week.ResponsibilitiesDeploy code to production on day onePrototype, develop, and iterate on new product areas, equipping our customers with powerful AI tools for information extraction and report generationProductionize and launch core technologies that enhance AI capabilities based on extensive operational sustainability dataStay abreast of AI advancements to assess their relevance for WatershedWrite efficient, well-structured, tested, and maintainable code across our technology stackQualificationsYou may be a great fit if you possess:3+ years of software engineering experience, preferably in Node.js web developmentExperience in developing customer-facing products rooted in user needsEnthusiasm for joining a startup and contributing to the evolution of a growing engineering teamStrong full-stack development skills with a solid understanding of modern web technologies

Join Faculty as a Full Stack Software Engineer and be part of a dynamic team that is pushing the boundaries of technology. We are looking for an innovative and driven individual who thrives in a fast-paced environment and is passionate about building scalable applications.As a Full Stack Software Engineer, you will work on both front-end and back-end development, collaborating closely with cross-functional teams to deliver high-quality software solutions that meet our clients' needs.

Senior Frontend Engineer - Elevate User Experiences Are you a seasoned Frontend Engineer looking to make a significant impact? Join our dynamic and agile delivery team at ClearScore, where we are dedicated to crafting innovative experiences for our users through the latest technologies. If you thrive in a high-performance, entrepreneurial environment that celebrates the art of developing cutting-edge products and tackling complex challenges, we want to hear from you! As a valued member of our established cross-functional squad, you will focus on advancing our design system, enhancing our logged-out website, and exploring other groundbreaking technologies. We foster a culture of continuous improvement and creativity, inviting new team members to share their ideas and methodologies. Bring your expertise, and we'll share our knowledge in a collaborative and enjoyable atmosphere. At ClearScore, our world-class engineers are pivotal in fulfilling our mission to enrich the financial lives of millions. To learn more about our technology stack, visit our 2026 Tech Radar. Discover our work culture through our Behavioural Principles and Engineering Principles. Explore additional insights on our Tech Blogs on Medium. Your Responsibilities: Design, develop, and maintain full-stack solutions using Node.js and TypeScript, delivering data-driven user interfaces and backend services. Create intuitive client UX utilizing design systems and server-driven UI frameworks. Optimize and scale databases for large-scale applications, employing SQL, PostgreSQL, and indexing strategies to ensure performance and maintainability. Collaborate closely with skilled colleagues to implement, monitor, and optimize real-time data pipelines with Kafka, ensuring robust message handling and distributed system performance to enhance your features. Take ownership of end-to-end performance optimization, both client-side and server-side. Lead the deployment and maintenance of production-grade code and databases across multiple global markets. Monitor post-release performance, utilizing tools for reliability and system health. Engage in an Agile environment, mentoring team members across various specializations and fostering a culture of learning and continuous improvement.