Software Engineer - Core Database (Kernel)

Please note: this position requires relocation to our Milan office.About SatispaySatispay is on a mission to transform everyday transactions, making payments straightforward, equitable, and accessible for all. We aspire to redefine the future of finance, empowering millions with a collective goal to address significant challenges. Our journey is just beginning.Joining our Core Team means engaging with essential systems that include managing relationships with external banks, orchestrating payments, and establishing the foundational infrastructure for Identity and Access Management. Our team also oversees risk management services, specifically credit risk evaluation and fraud detection.We value agility, bold thinking, and mutual trust, fostering an environment where challenging the status quo is encouraged, and continuous learning is a priority. If you seek more than just another job and wish to contribute to impactful projects alongside a skilled team, look no further.Key ResponsibilitiesAs a Staff Software Engineer within the Core Team, you will play a pivotal and strategic role in developing the backbone of our payment platform. You will work on mission-critical engines that empower Satispay, ensuring reliability, consistency, and security for millions of users.Daily tasks will include:Define Technical Strategy: Establish the long-term technical vision for critical domains, architecting complex subsystems that serve as the company's foundation, while balancing cross-product needs with speed and reliability.Architect Core Financial Systems: Design and scale high-throughput engines responsible for our transaction ledger, payment orchestration, and external bank integrations, ensuring accuracy and availability of our 'source of truth.'Own Identity & Security Infrastructure: Develop and maintain the base infrastructure for Identity and Access Management (IAM), including authentication and authorization layers that secure our users.Engineer Risk & Fraud Solutions: Create and enhance sophisticated services dedicated to credit risk management and fraud detection, implementing real-time protective logic for the company.

Please note that this position necessitates relocation to our Milan office.About SatispaySatispay is on a mission to transform the way people manage everyday payments, making them straightforward, equitable, and accessible for all. Our vision has evolved to redefine the future of financial transactions.We are a dynamic movement empowering millions, driven by a collective mission to address significant challenges. Our approach is swift, courageous, and collaborative, fostering an environment where innovation thrives.Joining the Core Team means engaging with essential systems that manage interactions with external banks, orchestrate payments, and create the foundational infrastructure for Identity and Access Management (IAM). This team also oversees critical risk management functions, including credit risk assessment and fraud detection.If you’re eager to craft impactful solutions that serve as the bedrock for our product teams, you’ve found the right place.Your RoleAs a Senior Backend Software Engineer within the Core Team, you will be pivotal in developing the backbone of our payment platform. You will ensure the technical excellence and timely delivery of complex systems that influence multiple services and product teams throughout the organization.Your daily responsibilities will include:Engineering Core Platform Domains: You will help design and evolve our most sensitive systems including the Transaction Ledger, IAM, and Payment Orchestration, ensuring they remain high-performing, scalable, and functional for product team integration.Scaling Risk & Financial Engines: You will optimize and develop services dedicated to bank integrations, credit risk, and real-time fraud detection, constructing robust logic to safeguard our financial ecosystem.Cross-Team Technical Leadership: You will lead technical analyses for projects that span multiple services, facilitating discussions and producing comprehensive documentation (Smart Papers) to ensure clarity and robustness in your designs.Collaborative Development: Engage actively with product teams to refine requirements and enhance the overall system architecture.

Please be aware that this position necessitates relocation to our Milan office.About SatispaySatispay aims to transform the landscape of everyday payments, making them straightforward, equitable, and available to all. Our vision extends further as we aspire to redefine the future of financial transactions. We are a vibrant community empowering millions, united by a common goal to address significant challenges. And this is just the beginning.We operate with agility, think innovatively, and foster an environment of trust where we can challenge conventions, continuously learning and evolving. If you are seeking more than just a job—if you desire to create something meaningful alongside a skilled team—you have found the right opportunity.Your ResponsibilitiesAs a Staff Software Engineer within the Consumer Wealth team, you will have a pivotal and strategic role in influencing how our users build and manage their savings and investments. You will serve as the primary technical authority for the Consumer domain, spearheading initiatives that enable millions to enhance their financial health through our savings products, invested money box, and investment solutions.Your daily responsibilities will include:Define Technical Strategy: Formulate the technical roadmap for the Consumer Wealth domain. You will design intricate subsystems that underlie savings and investment functionalities while considering cross-product impacts, leading effective initiatives that influence multiple teams.Enhance the Architecture: Create and develop scalable, high-performance systems that address complex financial engineering challenges, including the management and simplification of advanced back-end systems for savings and wealth management.Technical Thought Leadership: Establish cross-organizational partnerships to foster technical alignment, represent the technical vision to stakeholders, and remain at the forefront of emerging technology trends in FinTech and wealth management.Nurture Talent: Cultivate the next generation of technical leaders and promote a culture of excellence in engineering and continuous improvement.Create Impact: Play a crucial role in assisting users in expanding their wealth and achieving their financial aspirations through your contributions to the Consumer Wealth back-end architecture, directly supporting Satispay's mission.Prepare for challenges, collaboration, and the freedom to innovate. Our technology stack includes a variety of tools and technologies, providing you with ample opportunities for growth.

Note: This position requires relocation to our Milan office.About SatispayAt Satispay, we are on a mission to transform everyday payments, making them seamless, fair, and accessible for everyone. Our vision extends beyond today as we strive to shape the future of money.Join a movement that empowers millions, united by a common goal to tackle significant challenges. We are just beginning our journey. We act swiftly, think innovatively, and foster an environment of mutual trust where questioning the status quo is encouraged, leading to continuous learning and growth.If you seek more than a job and want to create something impactful alongside a talented team, you’ve found the right place.Your ResponsibilitiesAs a Senior Backend Software Engineer in the Business Team, you will be pivotal in defining the future of digital welfare payments, managing various aspects from employer benefits to intricate product offerings. You will oversee the complete journey for both employers and employees, ensuring sustained satisfaction. Your responsibilities will include:Leading Multi-Service Solutions: Perform technical analyses for medium-to-large-scale projects that affect multiple services within the employer domain. Design robust, highly-available solutions that prioritize scalability, security, and maintainability for products central to welfare.Maintaining Technical Excellence: Implement comprehensive testing strategies, balancing automation and manual processes, and manage incremental rollouts with vigilant monitoring to guarantee precise and reliable welfare distributions.Proactive Problem Solving: Anticipate and resolve technical challenges, promoting knowledge sharing within your organization. You’ll address the unique complexities of B2B registration flows and high-volume benefit distributions while ensuring code quality through diligent reviews.Ownership and Execution: Take charge of your projects from inception to completion, delivering features that genuinely meet user needs—from the moment an employer registers to when an employee accesses their welfare benefits—through efficient back-end integration.

Our MissionAt Omnea, we are revolutionizing the way enterprise businesses manage operations, starting with the complex process of procurement. A single purchase can often extend for months, involving over 50 emails and requiring input from Finance, Legal, Security, and IT just to gain approval.With $75 million in funding from Khosla Ventures, Insight Partners, and Accel, our AI-driven platform streamlines every aspect of purchasing, ensuring that buying is swift, secure, and effective. We provide a centralized hub for requests, automate approvals and renewals, offer real-time insights into supplier risks, and deliver complete visibility over expenditures.This is a $7 billion+ untapped market, and our rapid growth reflects the magnitude of this opportunity: we have increased our Annual Recurring Revenue (ARR) tenfold to reach double-digit millions within just 18 months, earning the trust of global enterprises such as Spotify, MongoDB, Monzo, and Albertsons. We are recognized as the 4th fastest growing startup in Europe.Our team comes from backgrounds at Tessian (a cybersecurity firm backed by Sequoia, Balderton, and Accel, which was acquired post-Series C). Our members include former founders and operators who have successfully scaled unicorns, launched top-tier products, and excelled in high-stakes environments. You will have the opportunity to collaborate with renowned leaders like Ben, Abs, Sabrina, and Rebe.Interested in relocating to London, UK? We offer Skilled Worker Visas for you, your spouse, and any dependent children, along with a tax-free relocation reimbursement of £8,000 for Senior+ Software Engineers moving to the UK to work with us in London (Hybrid, 3 days on-site).

Join our dynamic team as a Staff Software Engineer at CyberArk, where you will be instrumental in developing cutting-edge security solutions. You will collaborate with a talented group of engineers to design, implement, and maintain software systems that protect against evolving cyber threats. Your expertise will contribute to innovative projects that shape the future of enterprise security.

Join Our Team as a Staff Software EngineerAt Deliveroo, we are dedicated to revolutionizing the way people shop and dine. Our commitment to impact, innovation, and growth is at the core of everything we do. Our engineering teams are tasked with addressing intricate technical challenges within a global, three-sided marketplace, developing and scaling systems that cater to millions of customers, riders, and partners daily.From real-time logistics to robust infrastructure and marketplace optimization, we design, build, and operate the technology that fuels Deliveroo's expansive growth.We are seeking a Staff Software Engineer to become a key member of our London, UK - Hybrid (3 days in the office) team. In this pivotal role, you will help us craft technical solutions for essential business challenges and steer the technical direction for complex, high-scale systems.Discover our Engineering team — learn about our motivations, work culture, and what you can expect when you join us.

Join unlikelyAI as a Staff Software Engineer and be at the forefront of developing cutting-edge artificial intelligence solutions. In this pivotal role, you will collaborate with a talented team to design, implement, and optimize software systems that push the boundaries of technology.As a key member of our engineering team, you'll have the opportunity to influence the architecture of our products and mentor junior engineers. We are looking for innovative thinkers who thrive in a fast-paced environment and are passionate about building scalable and efficient software.

About UsPhysicsX is a pioneering deep-tech company that blends expertise in numerical physics and the high-speed world of Formula One. Our mission is to drive hardware innovation at an unprecedented pace, leveraging the power of software.We are developing an AI-enhanced simulation software platform aimed at transforming engineering and manufacturing processes across advanced industries. By facilitating high-fidelity, multi-physics simulations through AI inference throughout the entire engineering lifecycle, PhysicsX empowers engineers to achieve exceptional levels of optimization and automation in design, manufacturing, and operations. Our clientele includes top-tier innovators from Aerospace & Defense, Materials, Energy, Semiconductors, and Automotive sectors.The RoleWe are creating a platform that allows Data Scientists and Simulation Engineers to seamlessly build, train, and deploy Deep Physics Models. Our platform caters to multiple tenants within highly regulated industries, making advanced identity, access control, and operational visibility integral to our operations.We are in search of a Senior Software Engineer to join our Core Services team. This team is responsible for constructing the foundational elements that provide our customers with unparalleled capabilities. For too long, engineers have relied on outdated, siloed tools from the 90s. We aim to revolutionize this by enabling secure, permissioned collaboration at the vanguard of AI.In this role, you will design and develop enterprise-grade systems that facilitate this transformation. From fine-grained permissions to comprehensive instrumentation, you will create the essential components that every product within PhysicsX will utilize, ensuring that every user, service, and workflow is securely identified, appropriately scoped, and fully observable. You will take ownership of the infrastructure that maintains our platform's trustworthiness, transparency, and readiness for the future of engineering and manufacturing.

Join physicsx as a Senior Software Engineer specializing in Site Reliability Engineering (SRE). In this pivotal role, you will be responsible for enhancing our core infrastructure, ensuring reliability, scalability, and performance of our software systems. You will work with a talented team to design, implement, and maintain robust solutions that meet the needs of our users.As a senior engineer, you will also mentor junior team members, contribute to architectural discussions, and drive best practices in software development and operations.

Join Plaid as a Staff Software Engineer and be a vital part of our team in London. We are looking for innovative engineers who are passionate about building the infrastructure that powers the future of fintech. You will work alongside talented professionals, contributing to an exciting array of projects that will challenge your skills and help you grow.

About Checkout.com Checkout.com helps businesses succeed in the digital economy. Leading companies such as eBay, ASOS, Klarna, Uber Eats, and Sony rely on our platform to process seamless online payments. Our global network supports billions of transactions each year, focusing on reliability and ease of use. Headquartered in London, Checkout.com operates from 19 offices across six continents. The company values high performance and continuous improvement. Working here means contributing to the future of fintech alongside teams striving for excellence. Role Overview: Staff Software Engineer - Streaming The Data and AI Platform Team is looking for a Staff Software Engineer to help build a scalable platform for AI-driven streaming and batch data applications. This platform will improve how data is shared and used across Checkout.com, supporting business growth and performance. The team’s mission is to make it easier for internal teams to collect, store, process, and use data for impactful AI projects and data products. The focus is on reducing technical overhead so engineers can spend more time solving business challenges, not managing infrastructure or deployments. Current work lays the foundation for systems that will scale to support hundreds of teams and handle petabytes of data. Main Responsibilities Design and develop a highly available event streaming platform using technologies like Kafka and Flink. Offer technical leadership and mentorship, providing strategic direction and building strong relationships with engineers and managers across the organization. Work with cross-functional teams to deliver data solutions that support business goals. Location This role is based in London.

Join Carta, a leading financial technology company, as a Staff Software Engineer. In this role, you will contribute to the development of innovative software solutions that empower companies to manage their equity and ownership structures more effectively. You will collaborate with cross-functional teams, leveraging the latest technologies to deliver robust and scalable applications.

Join our innovative team at Astronomer as a Staff Software Engineer specializing in Data. In this role, you will help shape the future of data engineering solutions that empower organizations to harness the full potential of their data. You will work collaboratively with cross-functional teams to design, develop, and optimize data pipelines and infrastructure, ensuring high performance and reliability.

Role Overview Utility Warehouse is looking for a Staff Software Engineer to focus on Energy. This role shapes the design and implementation of software that supports our energy services. The position calls for both technical leadership and hands-on development. What You Will Do Design and build software solutions for energy products and services Guide engineers to deliver reliable, maintainable code Promote sustainability and efficiency in technical decisions Impact This position supports Utility Warehouse’s goal of improving the energy sector with technology. Staff Engineers in this area influence both the technical direction and the quality of delivery across teams.

Join Ki Insurance, a pioneer in the insurance industry, as we redefine a 335-year-old market with cutting-edge technology. Our innovative platform, developed in collaboration with Google and UCL, leverages algorithms and machine learning to deliver lightning-fast quotes to insurance brokers, transforming the industry standard.As the largest global algorithmic insurance carrier and the fastest-growing syndicate in the Lloyd's of London market, Ki Insurance has achieved extraordinary milestones, including generating $100 million in profit within just three years.Our diverse teams thrive in an agile, cross-functional environment, where collaboration and creativity lead to exceptional customer experiences. We are on the lookout for brilliant minds to join us on our mission to challenge conventions and explore new possibilities.As a Staff Software Engineer, you will play a pivotal role in our engineering team, providing technical leadership to both delivery squads and the broader engineering organization. You will champion engineering excellence and uphold high standards of quality, fostering a culture of continuous improvement. Your hands-on approach will enable you to design and deliver impactful software solutions while guiding your colleagues to achieve collective goals.Are you ready to make your mark? Develop robust and scalable software for critical web-based applications.Design, implement, test, document, and maintain APIs and integrations.Create new features within our core Kotlin-based services, collaborating with multi-disciplinary teams.Ensure quality control through techniques such as automated testing, code review, and pair programming.Work closely with the Product team to translate user requirements into effective technical solutions.Document technical designs and analyses thoroughly.Evaluate existing system architecture, identifying areas for enhancement and growth.Prototype and explore innovative ideas and technologies swiftly.Promote a culture of continuous improvement, leading by example and positively influencing our practices.

About AirwallexAirwallex stands as the only integrated payments and financial platform tailored for global enterprises. Our unique blend of proprietary infrastructure and innovative software empowers over 200,000 businesses globally, including industry leaders like Brex, Rippling, Navan, Qantas, and SHEIN, offering fully integrated solutions for managing business accounts, payments, spend management, treasury, and embedded finance on a worldwide scale.Established in Melbourne, our team comprises more than 2,000 of the brightest minds in the tech industry across 26 global offices. Valued at US$8 billion and supported by world-renowned investors such as T. Rowe Price, Visa, Mastercard, Robinhood Ventures, Sequoia, Salesforce Ventures, DST Global, and Lone Pine Capital, Airwallex is at the forefront of constructing the global financial and payments platform of the future. If you are prepared to engage in the most ambitious work of your career, we invite you to join us.

Our VisionAt Omnea, we are passionately transforming the enterprise landscape, specifically tackling the complexities of procurement. Our goal is to eliminate the lengthy processes that often involve over 50 emails and the engagement of multiple departments such as Finance, Legal, Security, and IT just to secure a simple purchase approval.With a significant investment of $75M from Khosla Ventures, Insight Partners, and Accel, we are set on a mission to revolutionize this space. Our AI-driven platform seamlessly integrates all stakeholders, automating approvals and renewals, managing supplier risks in real-time, and providing complete visibility into spending.The procurement market is valued at over $7B, and our remarkable progress demonstrates the potential: we have achieved a tenfold increase in ARR to double-digit millions within just 18 months, working with esteemed global clients like Spotify, MongoDB, Monzo, and Albertsons. We are proud to be recognized as the 4th fastest growing startup in Europe.Our team boasts experience from scaling Tessian (a cybersecurity tech firm supported by Sequoia, Balderton, and Accel, acquired post-Series C), including former founders and operators who have led unicorn companies and developed top-tier products. You will collaborate with distinguished leaders such as Ben, Abs, Sabrina, and Rebe.What We SeekWe are on the lookout for an outstanding, product-oriented Team Leader - Staff Software Engineer (L4) to enhance our engineering team and navigate Omnea through this exciting growth phase. In the upcoming year, we aim to double our team size, expand our enterprise client base from approximately 100 to over 200, and triple our revenue. This Staff-level position offers a significant opportunity for domain-level influence, combining senior technical leadership with team management duties. You will guide a team, mentor engineers, and shape architectural and product decisions across a broader domain while remaining actively engaged in critical areas.You will be joining us at a critical juncture as we have just secured a $50M funding round to further our mission...

At Ripple, we are pioneering a future where value transfers seamlessly, akin to the flow of information. Our vision is ambitious, and we are already transforming the landscape. With our innovative crypto solutions tailored for financial institutions, businesses, governments, and developers, we are enhancing the global financial ecosystem, fostering economic equity, and creating opportunities for individuals worldwide. Join a team where you can engage in meaningful work while honing your skills in a supportive and collaborative environment.If you are eager to witness the tangible impact of your contributions and explore remarkable career advancement possibilities, we invite you to be part of our journey to create real-world value.At Ripple, we’re building a world where value moves like information does today. It’s big, it’s bold, and we’re already doing it. Through our crypto solutions for financial institutions, businesses, governments and developers, we are improving the global financial system and creating greater economic fairness and opportunity for more people, in more places around the world. And we get to do the best work of our career and grow our skills surrounded by colleagues who have our backs.If you’re ready to see your impact and unlock incredible career growth opportunities, join us, and build real world value.