Senior Backend Engineer - Java

Role Overview nuitee is looking for a Senior Backend Engineer with strong Python experience to help build and maintain backend systems. This position focuses on designing, implementing, and improving backend services that support client needs across the EMEA region. What You Will Do Work closely with cross-functional teams to design backend architecture and …

Join vidrush as a Senior Python Backend Engineer specializing in AI and Agent technologies. In this pivotal role, you will leverage your expertise in Python to develop innovative solutions that drive our AI initiatives. Collaborate with a dynamic team of professionals dedicated to pushing the boundaries of technology. Your contributions will directly impact our projects and help us achieve our mission of transforming the industry.

Join Updraft: Transforming Financial Futures!At Updraft, an award-winning fintech company authorized by the FCA, we are on a mission to revolutionize how individuals perceive and manage their finances. Our innovative platform automates everyday financial decisions, making it easier for users to handle credit cards, overdrafts, and loans. Experience a comprehensive spending overview across all financial accounts with Open Banking technology. Access a complimentary credit report with personalized tips to enhance your credit score. Leverage AI-driven financial planning tailored to help users manage expenses, eliminate debts, and boost credit ratings. Utilize intelligent lending solutions designed to lower the cost of credit. With over 800,000 users and a remarkable reputation within the UK fintech landscape, Updraft has helped individuals convert approximately £500 million in high-cost credit card debt into more manageable options, paving the way for better financial health. Rated 4.8 on Trustpilot, 4.8 on the Play Store, and 4.4 on the iOS Store by our satisfied customers. Recognized as a participant in the Technation Future Fifty 2025, a prestigious program that supports innovative startups on their journey to IPO. Featured in the Sifted 100 UK startups list for two consecutive years (2024 and 2025). We are seeking talented professionals to join us in our next growth phase, offering a unique opportunity to make a measurable impact. Expect a hybrid work culture that fosters collaboration across functional teams, generous learning budgets, wellness benefits, and the freedom to innovate and directly influence our customers' financial journeys.Become part of our commitment to building a fairer credit system!

NOTE: This position is 100% remote, however, candidates must be located within the EMEA region to effectively collaborate with team members and internal stakeholders. Please apply only if you are physically based within EMEA.Hostaway is a leading AI-driven vacation rental management platform, trusted by over 20,000 property managers globally. Our platform is engineered for professional short-term rental operators, providing a comprehensive solution to enhance efficiency and foster rapid growth.As the first unicorn in the short-term rental Property Management System space, we are experiencing significant growth. Join us during this pivotal phase! Discover more about our recent valuation and journey here.About the RoleAt Hostaway, we are developing our AI Platform, which serves as the foundational infrastructure for all AI-driven features across our product offerings. This platform team is not merely adding AI capabilities to existing workflows; we are creating an agentic framework that will empower each engineering team at Hostaway to implement reliable, production-grade AI functionalities.In your role as a Staff Engineer, you will be responsible for the architecture and technical vision of this platform. You will spearhead the design and implementation of a multi-agent system, which encompasses an agent orchestrator, LLM gateway, prompt and tool versioning, evaluation frameworks, and end-to-end observability. Your contributions will directly influence how effectively Hostaway can provide AI-powered experiences to over 50,000 property managers and their guests.This role offers high autonomy and significant impact. You will report directly to engineering leadership and collaborate closely with product, design, and engineering teams throughout the organization. You will build upon a well-defined architecture and a robust technical foundation.

Join Nevis: Pioneering AI Wealth ManagementAt Nevis, we're on a mission to revolutionize wealth management through cutting-edge AI technology. Our innovative platform is designed to empower financial advisors, enabling them to enhance client relationships while our AI automates time-consuming workflows. As we build the future of wealth management, we have secured $40 million in funding from top-tier investors including Sequoia Capital, ICONIQ, and Ribbit, and are led by a talented team of ex-Revolut executives.Your Impact as a Software Engineer (Python)We are seeking a talented Software Engineer (Python) who is passionate about developing robust AI-driven platforms. In this key role, you will design and implement Python-based systems and services that drive intelligent workflows for leading financial firms. You will work on applied AI, data pipelines, model execution frameworks, and backend components that support our innovative AI products.If you thrive in a fast-paced environment, love creating production-grade AI solutions, and are eager to see your ideas come to life quickly, Nevis is the place for you. You'll join a world-class engineering team dedicated to building scalable AI systems.Your ResponsibilitiesDesign and enhance Nevis’ Python-based AI platform, enabling core workflows and agentic automation.Develop model orchestration, data processing pipelines, and execution runtimes for our applied AI features.Create scalable APIs and services that facilitate rapid development and deployment of AI systems.Architect systems for model inference, prompt execution, and multi-step agent reasoning.Maintain high engineering standards through clean code practices and CI/CD workflows.Collaborate with AI engineers, product managers, and designers to deliver impactful features used by thousands.Take ownership of greenfield AI platform components, from architecture to production.Engage in design and code reviews that shape Nevis’ technical future.

A Message from Our FoundersAt Oxford Dynamics, we stand at a pivotal moment of growth and innovation.Operating within some of the world's most challenging and high-stakes sectors—defence, national security, artificial intelligence, and robotics—the choices we make today will shape not only our expansion but our identity.As a Senior Backend Engineer, you will collaborate closely with our talented team, making critical decisions that will directly influence the business. Your contributions will be visible and impactful every day.If you thrive on ownership, speed, purpose, and building solutions that genuinely matter, we want to hear from you.About UsFounded in 2020, Oxford Dynamics is an innovative UK-based deep-tech firm focused on developing advanced AI and robotic systems for mission-critical situations.Our flagship AI framework, AVIS (A Very Intelligent System), integrates multi-modal data—text, imagery, telemetry, and sensor feeds—to empower operators to analyze complex information swiftly and make informed decisions under pressure. Additionally, our STRIDER robotic platform autonomously performs tasks in hazardous environments, ensuring safety while enhancing operational capabilities.Our goal is ambitious yet straightforward: to merge AI and robotics, enabling machines to perceive, comprehend, and act in intricate real-world scenarios.We partner with international defence and security organizations to safeguard nations, infrastructure, and lives.Your RoleIn this pivotal role, you will be at the heart of our product development, crafting systems that translate advanced AI into real-world applications. You should possess a strong sense of ownership over backend services, prioritize reliability and API excellence, and have hands-on experience with Palantir Foundry in a high-impact setting.

Join LaunchDarkly as a Senior Solutions Engineer for the EMEA region, where you will play a critical role in helping our customers understand and implement our feature management platform. Your expertise will enable organizations to innovate faster while maintaining control over their software releases. As a technical leader, you will work closely with our sales and product teams, demonstrating the value of our solutions and contributing to the success of our clients.

Join Our Team!At Plum, we are revolutionizing how people save and invest. Our mission is to empower individuals to grow their wealth for life, whether they are saving for their first home or enjoying retirement. Since our inception in 2016, over 2 million users across 10 European countries have saved more than £2 billion with our innovative automation and AI technology. We've been recognized with awards from esteemed organizations like Deloitte and Finder, reflecting our commitment to excellence.We are a passionate team of over 200 Plumsters working collaboratively across Europe, and we are eager to welcome more talented individuals to help us achieve our vision.Your RoleAs a Senior Backend Engineer at Plum, you will play a crucial role in shaping our technology and product offerings. We seek engineers who are not only technically adept but also understand the importance of delivering outstanding products to our customers.

About RemoteAt Remote, we are revolutionizing how organizations manage global employment with compliance and ease. Our platform empowers businesses of all sizes to recruit, compensate, and oversee international teams seamlessly. Driven by our core values and a forward-thinking work culture, our team collaborates on ambitious challenges asynchronously from across the globe. Our employees, known as Remoters, operate from six continents, with our positions being fully remote.With innovation at the core of our mission, we have integrated automation and AI capabilities into the requirements for every role.We encourage every member of the Remote team to contribute their unique talents, experiences, and cultures to help us build a top-tier HR platform. If you are an energetic, curious, motivated, and ambitious individual, join us and shape the future of work! Apply now!The PositionYou will become a vital part of a team of engineers specializing in Frontend, Backend, SRE, and QA, organized into cross-functional development teams focused on specific verticals.This role is available in multiple teams, and we will determine the exact team you will join during the interview process based on business needs and your preferences.Regardless of the team, your work will involve developing tools, APIs, and integrations for one of our products.Our backend utilizes Elixir and Phoenix, with a PostgreSQL database, while our frontend employs React and Next.js. We use GitLab for version control and CI/CD solutions. Our applications are hosted on AWS, and we leverage continuous integration for deployments, executing multiple deployments daily. For further insight, feel free to explore our Engineering Rulebook.What This Job Offers YouEngaging and meaningful challenges that will empower individuals and organizations to thrive in any country worldwide.The chance to make a substantial impact on our business during this exciting phase of growth, where your contributions will significantly influence our trajectory.A highly collaborative and inclusive work environment that values diverse perspectives and experiences.

At Spotify, we are on a mission to revolutionize the way creators and listeners engage with long-form storytelling through our Audiobooks initiative. Our objective is to create a seamless ecosystem for audiobook content, facilitating smooth transfers from publishers to listeners. This includes building the robust systems necessary for content ingestion, processing, and efficient delivery across our rapidly expanding global catalog. We are seeking a talented Senior Backend Engineer to join a dynamic and impactful team within the Audiobooks Pipeline sector. This team's primary responsibility is to design and scale systems that handle the ingestion, processing, and transformation of audiobook and eBook content, metadata, and royalties, ensuring that listeners receive the right content with utmost efficiency and quality. While this role encompasses full-stack responsibilities, the emphasis will be on backend and data-centric development. We are looking for an individual who thrives in uncertain environments, is passionate about learning, and is excited to tackle complex challenges across the tech stack.

About RemoteAt Remote, we are addressing one of the most significant challenges faced by modern organizations: managing global employment in a compliant and seamless manner. We empower businesses of all sizes to recruit, compensate, and oversee international teams effortlessly. Our commitment to innovation and a forward-thinking work culture drives us to tackle ambitious problems collaboratively from across the globe. With team members working from six continents (Antarctica is the only one left!), all roles are fully remote.Innovation is one of our core values, and as such, we integrate Automation and AI capabilities into every role.We invite each member of the Remote team to contribute their unique talents, experiences, and cultural insights to help us create a premier HR platform. If you are energetic, curious, motivated, and ambitious, join our team and help define the future of work!The PositionYou will be part of a diverse team of engineers specializing in Frontend, Backend, SRE, and QA, organized into cross-functional development teams focused on specific verticals.This role is available across multiple teams, and we will determine the exact team during the interview process based on business needs and your preferences.Regardless of the team, you will be engaged in developing tools, APIs, and integrations for our products.Our backend technology stack includes Elixir and Phoenix, supported by a Postgres database. The frontend utilizes React and Next.js. We leverage GitLab for version control and CI/CD, hosting our applications on AWS. Our deployment process is streamlined, allowing us to deploy multiple times a day. For more information, refer to our Engineering Rulebook.

Docker, Inc. seeks a Senior Sales Engineer to strengthen its strategic sales across EMEA. The focus is on providing technical guidance and supporting customers as they adopt Docker's container platform. Key Responsibilities Work closely with sales teams to identify client requirements and recommend technical solutions that fit their needs Showcase Docker’s platform features to both new and existing customers Encourage adoption and effective use of Docker products within client organizations Act as a technical point of contact during the sales cycle, answering questions and helping to resolve challenges Location and Language This position is based in England and serves customers throughout the EMEA region. Fluency in English is essential.

Our Mission At Bud, we are dedicated to revolutionizing financial data products that empower millions to take control of their finances. Our innovative solutions are utilized by some of the world's leading institutions.Your Mission ‍‍Join our dynamic team and play a pivotal role in crafting high-performance, scalable, and reliable applications using Go.A Glimpse into Backend Development at Bud As a Senior Backend Engineer, you will be instrumental in developing and maintaining our robust backend systems that underpin our suite of financial products and services. Collaborate closely with fellow engineers to design, build, and rigorously test our systems.Our Modern Tech Stack Includes:- Go for backend and data engineering projects- Diverse data stores such as MySQL, Cassandra, Redis, and BigQuery- RabbitMQ for queuing- Internal service communication via HTTP and gRPC- A comprehensive observability stack featuring GrafanaLab, Loki, Tempo, Looker, and more- Google Cloud Platform for cloud environments- Familiarity with Docker and/or Kubernetes is an advantage!We foster a collaborative environment that values every team member's contributions and insights.Key ResponsibilitiesDeliver technical solutions both independently and collaborativelyGuide and partake in discussions and initiatives with other backend developers; share knowledge and promote technical best practicesBuild strong relationships within the team and the broader organization, mentoring and providing technical guidanceStay informed about emerging tools and practices, consistently enhancing your technical expertise and domain knowledgeCommunicate effectively in both technical and non-technical contextsMake informed trade-offs in project scoping and delivery with a focus on maintainability, scalability, and timely delivery in collaboration with the team and stakeholdersWork closely with cross-functional teams to align on implementation strategies and solutionsInclusivity at BudWe are committed to creating a diverse team where everyone feels safe to be their authentic selves. We believe that diverse backgrounds, experiences, and perspectives will help us grow as a company and a team. We especially encourage applications from individuals of different races, genders, and identities.

Join Monzo as a Senior Staff Backend Engineer and play a pivotal role in building our innovative banking platform. You will collaborate with cross-functional teams, driving technical excellence and contributing to our mission of making money work for everyone. Utilize your expertise in backend technologies to enhance our systems, implementing scalable solutions that improve our customer experience.

TL;DRDeducta is a rapidly expanding startup catering to some of the globe's most prestigious enterprises. With strong funding, we are committed to addressing today's most significant business challenges.We are seeking a Senior Backend Engineer who will play a pivotal role in the design, development, and upkeep of our core systems.In this role, your key responsibilities will include:Creating and sustaining high-performance, low-latency APIs for enterprise-level data processing systems.Delivering exceptional code promptly. Location: London, UK. Our office is situated near London Bridge, and we prioritize in-person collaboration. Compensation: The total compensation for this position begins at £150,000. Visa Sponsorship: We are willing to sponsor a visa for the ideal candidate to join our team. What is Deducta?Deducta is a leading data intelligence platform for global corporations. We provide unparalleled clarity into mission-critical data for some of the world's largest and most intricate organizations, starting with spend data.We are at the forefront of significant business transformations. Our partners leverage Deducta to achieve impactful results at remarkable speeds.‍What is the Role?We process vast datasets containing essential enterprise information from diverse sources and formats, structuring it effectively. Our system utilizes cutting-edge LLMs to tackle this challenge with unmatched precision and at previously unimaginable scales.As a Senior Backend Engineer, you will be responsible for designing, developing, and maintaining the foundational architecture of our platform as it expands.Your contributions will include:Designing, constructing, and maintaining data ingestion and processing engines capable of supporting mission-critical operations for the largest firms globally.Developing and sustaining ultra-fast, high-volume, and well-documented APIs to facilitate these systems.Driving business growth through a blend of creativity and experimentation to enhance our product, alongside proactive problem-solving for our clients.Working closely with both technical and non-technical team members to comprehend our customers' challenges and create solutions that address them.Success in this role means:Leading development initiatives from concept to production.Consistently driving enhancements and new features. Who will be the right fit?We are in search of a technically outstanding engineer who excels in a role that offers autonomy and ownership.You might be a great fit if you possess…Strong experience in object-oriented programming within cloud environments (e.g. AWS, GCP, or Azure), with .NET experience considered a plus.Familiarity with SOLID principles, domain-driven design, and Clean Architecture methodologies.A passion for...

About UsAt Heidi, we are pioneering an AI Care Partner that assists healthcare professionals at every stage, from documentation to patient care delivery. Our mission is to enhance healthcare capacity while maintaining a deeply human touch. In just 18 months, we have reclaimed over 18 million hours for clinicians and facilitated more than 73 million patient visits. Currently, Heidi powers over two million patient interactions weekly across 116 countries in more than 110 languages.Founded by healthcare professionals, Heidi unites clinicians, engineers, designers, scientists, creatives, and mathematicians, all dedicated to enhancing the human connection central to healthcare. With nearly $100 million in funding, we are expanding our reach in the USA, UK, Canada, and Europe, collaborating with major health systems, including the NHS and Beth Israel Lahey Health, among others.We are agile in our approach, focused on what works, and poised to shape the future of healthcare. Are you ready to take on this challenge?Your RoleAs a Senior Backend Engineer, you will be instrumental in executing backend features, leveraging your deep technical understanding to meet user requirements. You will thrive in a hyper-growth startup environment, with substantial experience in building SaaS products.With a solid grasp of the challenges engineers face, you will prioritize key features and capabilities through effective design principles. Your ability to bridge technical specifics with business needs will enable you to transform high-level concepts into practical solutions.Embracing challenging scenarios, you will appreciate the dynamics of a flexible, flat-structured work environment and quickly navigate the complexities of developing AI healthcare products on an international scale. We believe that exceptional talent can emerge from diverse backgrounds; if you have a proven history of delivering technically demanding products and features, we want to hear from you.

Join the Future of Identity with Socure!At Socure, we are revolutionizing the identity verification landscape, establishing a trust infrastructure that safeguards the digital economy. Our mission is to verify 100% of legitimate identities in real-time, proactively preventing fraud before it occurs. Our work addresses complex challenges, impacting businesses, governments, and millions of individuals globally every day.We seek passionate individuals ready to take on significant responsibilities. If you thrive in a fast-paced environment, possess critical thinking skills, and approach challenges with an ownership mindset, you’ll fit right in. If predictability is what you seek, this might not be the role for you. However, if you're eager to help shape the future of identity with a team that holds itself to the highest standards, keep reading.As a Senior Backend Engineer, you will be a critical player in our product-focused teams, designing and building scalable systems that have a meaningful impact. You will engage directly with customers to enhance satisfaction and drive continuous improvements across our product offerings.In this role, you will lead the design and implementation of distributed systems, take ownership of essential non-functional requirements such as scalability, security, and reliability, and mentor fellow engineers while remaining actively involved in development. Your expertise will be vital throughout the entire software development lifecycle, from architecture and implementation to testing, documentation, and production support.This position is ideal for backend engineers who are passionate about building robust systems using Golang, excel in a product-driven environment, and want to influence technology at scale.Key Responsibilities:Design, develop, test, and debug scalable backend services within distributed systems.Deliver on key non-functional requirements, including scalability, availability, performance, and security.Develop and maintain comprehensive tests (unit, integration, functional) to ensure high coverage and reliability.Contribute to and produce technical documentation for knowledge sharing and collaboration.Break down complex projects into actionable tasks and guide teams in their execution.

Join Aircall, a revolutionary unicorn in the AI-powered customer communications sphere, trusted by over 22,000 companies globally to enhance revenue, expedite issue resolution, and empower customer-facing teams. We are transforming the landscape of customer communications by integrating voice, SMS, WhatsApp, and AI into a unified workspace.Our growth is driven by a straightforward principle: to enable teams to work smarter, not harder. Our AI Voice Agent automates routine calls, while AI Assist simplifies post-call tasks, and AI Assist Pro provides real-time insights, allowing individuals to excel in their roles. This synergy results in increased revenue, quicker resolutions, and scalable teams.Headquartered in Paris, with a solid presence in North America anchored in Seattle, Aircall also has teams in vibrant cities such as Madrid, London, Berlin, San Francisco, New York City, Sydney, and Mexico City. Our product is beloved by customers, and we are rapidly scaling, supported by top-tier investors and continuous AI advancements across multiple product lines.At Aircall, you'll become part of a dynamic company. We are ambitious, focused on product development, and execution-oriented, with a clear impact, swift decision-making, and genuine growth opportunities.Our Work Culture at Aircall: We prioritize customer satisfaction, leverage data for decision-making, and are dedicated to delivering significant outcomes. We cherish ownership, continuous improvement, and thoughtful agility. If you thrive in a collaborative, fast-paced environment where trust and impact are essential, you will thrive here.Position Overview:As a Senior Backend Software Engineer, you will take charge of designing, developing, deploying, and maintaining essential features that enhance customer value on our voice platform.You will be expected to advocate for best practices, mentor team members, and contribute to the broader Engineering community as part of your daily responsibilities.Quality, excellence, and agility are at the core of our delivery process, and you will play a pivotal role in elevating these standards.Utilizing a diverse array of backend technologies tailored to specific needs, all hosted on AWS, we create resilient services that deliver added value on top of voice while fully integrating with our customers' critical business tools (CRM, Helpdesk, E-Commerce, etc.).

Join Spotify as a Senior Backend Engineer - Subscriptions and play a pivotal role in enhancing our subscription services.In this position, you will collaborate with cross-functional teams to design and implement scalable backend systems, ensuring seamless integration and exceptional user experiences.