Solution Architect (m/w/d)

NexGen Cloud

HPC CLUSTER ARCHITECT Location: UK (Remote) Department: Infrastructure Reporting to: Head of Infrastructure ABOUT NEXGEN CLOUD: NexGen Cloud is the company behind Hyperstack, a full-stack AI cloud serving tens of thousands of customers from AI researchers to enterprises running the world's most compute-intensive workloads. We deliver on-demand and private GPU infrastructure to teams who treat performance as a requirement, not a feature. We're a tight-knit, fast-moving team working at the cutting edge of AI cloud infrastructure. We practice what we preach, equipping our people with AI at every level so we can solve harder problems, ship faster, and keep raising the bar for what enterprise GPU infrastructure looks like. THE ROLE: HPC CLUSTER ARCHITECT This role exists because NexGen Cloud is winning large-scale dedicated GPU cluster contracts and needs someone who can own the full architecture cycle — from first customer conversation to production deployment. You'll have direct ownership over cluster architecture across compute, networking, storage, and physical design — translating customer requirements into production-ready, commercially optimised GPU deployments. This is a senior hands-on role for someone who has lived and breathed HPC cluster design and wants to be the technical authority, not one voice in a committee. You'll own designs end-to-end and see them go live. WHAT YOU'LL BE DOING: Rather than a long checklist, here's what success in this role looks like: * Own end-to-end cluster architecture for large-scale NVIDIA GPU deployments — from customer requirement through rack layouts, BOM, power and cooling design, to production handover * Design high-performance network fabrics across compute (InfiniBand, RDMA, NVLink/NVSwitch), storage, and WAN — defining topology, oversubscription models, and scaling strategies * Engage directly with OEMs and vendors — validating hardware configurations, reviewing quotes, and ensuring designs are both technically sound and commercially optimised * Provide technical oversight during deployment and bring-up — supporting hardware validation, performance testing, and acting as escalation point for complex integration issues * Act as a senior technical leader across Solutions Architecture, Cloud Engineering, and data centre partners — contributing to standardised reference designs and building out the HPC engineering function ABOUT YOU: We're more interested in how you think and work than in a perfect CV. You'll likely bring a combination of the following: * Proven experience in HPC or AI software stack design and delivery at scale — including workload profiling, scheduler configuration (SLURM, PBS, or equivalent), MPI/NCCL tuning, and distributed training frameworks such as PyTorch, JAX, or DeepSpeed. * Deep understanding of GPU software environments: CUDA, cuDNN, NCCL, driver stacks, and the tooling required to run large-scale AI training and inference workloads reliably in production. * Hands-on experience optimising AI and HPC workloads across multi-GPU and multi-node configurations — including profiling, bottleneck identification, and performance tuning at both the application and infrastructure layer. * Strong working knowledge of containerisation and orchestration in HPC/AI contexts: Docker, Kubernetes, NVIDIA GPU Operator, and container-native workload management. * Background in an OEM, hyperscaler, neo-cloud, or enterprise/research HPC environment, with demonstrable exposure to the full design-to-deployment lifecycle for GPU-accelerated workloads. * Ability to produce clear, professional technical documentation and architecture diagrams suitable for both engineering and board-level audiences. * Confident engaging with customers, vendors, and internal engineering teams as a technical authority — able to translate complex software and performance trade-offs into clear, actionable decisions. Nice to Have * Experience with large-scale cluster performance benchmarking — NCCL tests, MLPerf, or equivalent — and familiarity with what good looks like across different GPU generations and topologies. * Exposure to MLOps tooling and AI platform layers: experiment tracking (MLflow, W&B), model serving frameworks (Triton, vLLM), and pipeline orchestration (Kubeflow, Airflow). * Familiarity with InfiniBand and high-performance networking as it relates to distributed training performance — sufficient to engage credibly with network and infrastructure teams on topology and tuning decisions. WHAT WE OFFER: * Competitive salary and annual discretionary bonus scheme * Employee wellbeing benefits * 25 days of holiday, plus public holidays * Flexible working arrangements (remote or hybrid, depending on role and location) * Real ownership and autonomy, with the trust to take initiative and experiment * The opportunity to make a visible, meaningful impact as we scale * Clear career progression and growth opportunities in a fast-growing company * A collaborative, international culture built on trust, transparency, and ownership * The chance to help shape NexGen Cloud's team, culture, and future alongside ambitious, mission-driven colleagues MORE INFORMATION Head over to our NexGen Cloud careers page to view current openings and follow us on LinkedIn and X to learn more about our journey, newest releases and hear exciting news in the neocloud space.

WhiteTech

At WhiteTech, we empower businesses in the financial ecosystem with cutting-edge white-label and SAAS solutions. Our comprehensive suite of tools is tailored for EMI, PSP, e-commerce, and open banking platforms. With WhiteTech, clients gain access to a platform designed for flexibility, scalability, and seamless integration. Our mission is to help businesses unlock their full potential in a rapidly evolving financial landscape. Whether scaling your PSP, enhancing your EMI services, or diving into open banking, WhiteTech is your partner for innovation and growth. We are a remote-first technology company and welcome applications from candidates across Europe, including the EEA, the UK, Switzerland, and other non-EEA European countries such as Ukraine, Moldova, Georgia, Armenia, Montenegro, Turkey, and the Western Balkans. We also consider applicants from different locations who can work within Central European Time (CET). At WhiteTech, we empower businesses in the financial ecosystem with cutting-edge white-label and SAAS solutions. Our comprehensive suite of tools is tailored for EMI, PSP, e-commerce, and open banking platforms. With WhiteTech, clients gain access to a platform designed for flexibility, scalability, and seamless integration. Our mission is to help businesses unlock their full potential in a rapidly evolving financial landscape. Whether scaling your PSP, enhancing your EMI services, or diving into open banking, WhiteTech is your partner for innovation and growth. We are a remote-first technology company and welcome applications from candidates across Europe, including the EEA, the UK, Switzerland, and other non-EEA European countries such as Ukraine, Moldova, Georgia, Armenia, Montenegro, Turkey, and the Western Balkans. We also consider applicants from different locations who can work within Central European Time (CET). At WhiteTech, we empower businesses in the financial ecosystem with cutting-edge white-label and SAAS solutions.Our comprehensive suite of tools is tailored for EMI, PSP, e-commerce, and open banking platforms. With WhiteTech, clients gain access to a platform designed for flexibility, scalability, and seamless integration. We are looking for a Software Architect who will shape the technical future of our platform and help us scale mission-critical fintech products processing large volumes of financial transactions. YOUR ROLE AND IMPACT As a Software Architect, you will play a key role in defining and evolving the architecture of WhiteTech’s core fintech platform. You will work closely with Technical Leads, Product Managers, and business stakeholders to design scalable, resilient, and maintainable solutions while helping engineering teams make sound technical decisions. You will act as a technical authority across multiple teams and contribute to the long-term technology strategy of the company. YOUR KEY RESPONSIBILITIES WILL INCLUDE * Designing and evolving the architecture of mission-critical fintech products. * Defining architectural standards, engineering principles, and best practices across teams. * Leading architectural reviews and validating technical solutions proposed by engineering teams. * Designing highly available, scalable, and fault-tolerant distributed systems. * Driving system decomposition, domain boundaries, and service interactions. * Collaborating with Technical Leads on complex technical challenges and strategic initiatives. * Participating in the design of integrations with banking systems, compliance services, and other external platforms. * Identifying and mitigating technical risks, bottlenecks, and scalability limitations. * Supporting modernization initiatives, architectural refactoring, and technical debt reduction. * Working closely with Product and Business stakeholders to transform business requirements into sustainable technical solutions. * Mentoring senior engineers and technical leaders on architecture and engineering practices. WHAT MAKES YOU STAND OUT * 8+ years of backend development experience. * Strong commercial experience with PHP and Symfony. * Previous experience as Software Architect, System Architect, Solution Architect, Principal Engineer, or Lead Backend Engineer with significant architecture ownership. * FinTech, Payments, Banking, EMI, PSP, or Open Banking experience. * Deep understanding of OOP, SOLID, GRASP, and design patterns. * Strong experience designing high-load and distributed systems. * Strong understanding of Domain-Driven Design (DDD). * Experience with Event-Driven Architecture, CQRS, and Event Sourcing. * Experience designing microservice architectures and service communication patterns. * Strong knowledge of PostgreSQL, performance optimization, and database design. * Experience with Redis, message brokers, caching strategies, and asynchronous processing. * Experience with Kubernetes, Docker, and cloud-native environments. * Understanding of system observability, monitoring, logging, and performance analysis. * Experience documenting and presenting architectural decisions. * Ability to balance business goals with technical excellence. NICE TO HAVE * Experience working with platforms processing millions of transactions. * Experience with platform modernization and large-scale migrations. * Experience defining architecture standards across multiple engineering teams. * Experience mentoring Lead Engineers and Senior Engineers. WHAT SUCCESS LOOKS LIKE IN THIS ROLE * Engineering teams follow clear architectural standards. * Platform scalability and reliability improve as the business grows. * New products and services are designed with long-term maintainability in mind. * Technical debt is systematically managed and reduced. * Architecture decisions enable faster delivery without compromising quality or security. OUR RECRUITMENT PROCESS TYPICALLY FOLLOWS THESE STAGES: 1. Application screening 2. Interview Stages (2-3 weeks): * Prescreening call with recruiter * Technical Interview * Final Interview * Job Offer Embrace the opportunity to develop your skills in a cutting-edge fintech environment. Please apply now to be part of our dynamic team and make a tangible impact on the future of payments! Let’s build something great together! We offer:  * Competitive compensation package (commensurate with your experience) * 19 business days of flexible Paid Time Off (PTO) * Fully remote work with flexible hours (within the CET time zone) from any location of your choice * Values-driven culture with a friendly and supportive work environment * Opportunity to regularly participate in conferences and community events as both a participant and contributor * Matrix organizational structure designed to streamline communication, remove barriers, and promote efficiency Embrace the opportunity to develop your skills in a cutting-edge fintech environment. Please apply now to be part of our dynamic team and make a tangible impact on the future of payments! Let’s build something great together!

Prolific

ENGINEERING MANAGER  Engineering    Prolific Prolific is not just another player in the AI space – we are the architects of the human data infrastructure that's reshaping the landscape of AI development. In a world where foundational AI technologies are increasingly commoditized, it's the quality and diversity of human-generated data that truly differentiates products and models.   The role At Prolific, our product development group is a powerhouse of Engineering, Product, Data, Design, and Research – all working in lockstep. You'll thrive in cross-functional teams, each with a clear mission and the freedom to self-organize and innovate towards the best possible outcomes. We're passionate about moving fast and continuously improving, and we champion strong engineering principles and a culture of strong ownership. As an Engineering Manager, you won't just manage; you'll inspire, empower, and elevate. You'll cultivate high-performing engineers and champion good engineering practices. Working hand-in-hand with your Product Manager, you'll ensure your team is not just set up for success, but poised to deliver exceptional customer impact. This is a hands-on technical leadership role where your expertise will directly impact the technical excellence of your teams' work. You'll be instrumental in driving technical decision-making and collaboratively building scalable, resilient, and maintainable systems that power the future of AI.   What you’ll bring to the role * Experience in engineering management or equivalent coaching, mentoring and leadership experience as an individual contributor  * A demonstrable track record of building products and leading complex initiatives and designing systems   * Exceptional problem-solving and deep understanding of software engineering * Clear and structured communication skills, with an ability to lead diverse teams, influence stakeholders, and collaborate effectively across all levels and disciplines. * 5+ years of professional software development experience, including hands-on expertise building highly available, transactional, and distributed cloud-based applications * Strong web frontend expertise with proven experience building secure and customer facing frontend applications and strong knowledge of modern web technologies   What you’ll be doing in the role  * Lead, coach engineering teams to consistently deliver outstanding customer value. * Nurture the professional growth of your engineers, including impactful hiring, onboarding and performance management. * Create a healthy  and predictable pace of work by proactively planning, removing blockers, orchestrating dependencies, and fostering crystal-clear communication within and beyond your team. * Collaborate closely with product managers and your team to define both what to build and how to build it * With your team, drive the technical solution design and implementation, ensuring alignment with the overarching technical direction * Collaborate closely with product managers and the team to manage technical debt and toil and provide support for existing systems * Contribute to defining and evolving Prolific's engineering practices and cross team initiatives   Key Technologies  * * Cloud Platforms: Google Cloud Platform (GCP), Amazon Web Services (AWS) * Programming Languages: Python, JavaScript, TypeScript, Vue.js  * Frameworks: Django Rest Framework, Serverless architectures, container-based services * Databases: MongoDB, DynamoDB, Postgres * DevOps & Monitoring Tools: CircleCI, GitHub Actions, Kubernetes, Celery, EventBridge, DataDog Why Prolific is a great place to work We've built a unique platform that connects researchers and companies with a global pool of participants, enabling the collection of high-quality, ethically sourced human behavioral data and feedback. This data is the cornerstone of developing more accurate, nuanced, and aligned AI systems. We believe that the next leap in AI capabilities won't come solely from scaling existing models, but from integrating diverse human perspectives and behaviors into AI development. By providing this crucial human data infrastructure, Prolific is positioning itself at the forefront of the next wave of AI innovation – one that reflects the breath and the best of humanity. Working for us will place you at the forefront of AI innovation, providing access to our unique human data platform and opportunities for groundbreaking research. Join us to enjoy a competitive salary, benefits, and remote working within our impactful, mission-driven culture.   Links to more information on Prolific Benefits  External Handbook  Website  Youtube    Privacy Statement By submitting your application, you agree that Prolific may collect your personal data for recruiting and global organisation planning. Prolific's Candidate Privacy Notice explains what personal information Prolific may process, where Prolific may process your personal information, its purposes for processing your personal information, and the rights you can exercise over Prolific use of your personal information.