7 senior software engineer jobs in Paris

Join the fintech revolution with Mambu, the leading SaaS cloud banking platform. We're on a mission to make banking better for a billion people. We're engineering the future of financial services with AI at its core. At Mambu, AI isn't a feature — it's how we're rebuilding banking from the ground up. If you're ready to apply cutting-edge technology to problems that affect millions of people, your next chapter starts here. Learn more here . We are hiring Senior Backend Software Engineers across all teams. As a Senior Backend Software Engineer, you will be responsible for: Developing bank connectivity and payment automation products, features, and capabilities, with a focus on security, stability, and performance Owning architectural decisions for complex, high-impact projects and driving technical direction across teams Collaborating with Product Managers and DevOps Software Engineers to maintain a fast-paced, iterative, and continuously improved...

About The Job We are looking for a talented Senior Software Engineer to join our Product, Design, and Engineering organisation and help shape the future of spend management. You will join our KYC squad , helping build reliable, scalable, and user-friendly experiences for customer onboarding, verification, and compliance. This role is primarily backend-focused, with an expected split of approximately 70% backend and 30% frontend . You will take ownership of functional and technical topics across the full feature lifecycle, from discovery and specification through technical design, development, testing, documentation, deployment, and maintenance. As a Senior Software Engineer, you will also help shape the squad’s technical direction, lead initiatives, support strong engineering practices, and contribute to a positive and collaborative team culture. Our stack TypeScript (Node/React) PostgreSQL for data storage Redis, SQS, and Kafka for jobs, messaging, and queues...

About Thunes Thunes is the Smart Superhighway for money movement around the world. Thunes’ proprietary Direct Global Network allows Members to make payments in real-time in over 130 countries and more than 80 currencies. Thunes’ Network connects directly to over 7 billion mobile wallets and bank accounts worldwide, via more than 350 different payment methods, such as GCash, M-Pesa, Airtel, MTN, Orange, JazzCash, Easypaisa, AliPay, WeChat Pay and many more. Members of Thunes’ Direct Global Network include gig economy giants like Uber and Deliveroo, super-apps like Grab and WeChat, MTOs, fintechs, PSPs and banks. Thunes’ Direct Global Network differentiates itself through its worldwide reach, in-house Smart Treasury Management Platform and Fortress Compliance Infrastructure, ensuring Members of the Network receive unrivalled speed, control, visibility, protection and cost efficiencies when making real-time payments globally. Headquartered in Singapore, Thunes has offices in 12...

Blockchain is connecting the world to the future of finance. As the most trusted and fastest-growing global crypto company, it helps millions of people worldwide safely access cryptocurrency. Since its inception in 2011, Blockchain has earned the trust of over 90 million wallet holders and more than 40 million verified users, facilitating over $1 trillion in crypto transactions. You will operate the Product Security programe for Blockchain.com’s internally-developed products across Consumer, OTC and MRE lines. This is a senior, hands-on role: you’ll design and run the secure development lifecycle, lead threat modeling and architecture review, own the security debt lifecycle for product engineering teams, and architect the automated pipelines that protect billions in transaction volume. You will embed with product and engineering teams, convert technical findings into business-prioritized remediation, and lift developer capabilities so security is delivered by code...

Murex is a global fintech leader in trading, risk management and processing solutions for capital markets. Operating from our 19 offices, 3 400 Murexians from over 65 different nationalities ensure the development, implementation and support of our platform which is used by banks, asset managers, corporations and utilities, across the world. Join Murex and work on the challenges of an industry at the forefront of innovation and thrive in a people-centric environment. You’ll be part of one global team where you can learn fast and stay true to yourself. Team The Platform Technologies group in the Global DEV department drives the evolution of the MX.3 technical capabilities aligned with market standards and customers' expectations.  It’s an end-to-end organization that aims to address the technical and technological challenges of the MX.3 platform. To answer the different platform wide challenges, the group is organized into domains that are composed of developers, product...

IDEMIA Secure Transactions , a division of IDEMIA Group, is the leading technology provider making it safer and easier to pay and connect. With unmatched expertise in cryptography and credential issuance, IST is trusted by over 2,000 financial institutions, mobile operators, automotive manufacturers, and IoT providers worldwide. Every day, IST secures billions of essential transactions, ensuring the highest levels of data protection and convenience. Purpose This role transforms functional and non-functional requirements into design to reach simple, efficient and maintainable software that best addresses customers' requirements and optimize IDEMIAs business value Responsibilites Designs and specifies the overall software structure, core elements, interfaces (API), technologies (COTS) and properties to meet the criteria of performance, security, budget, quality and risks induced by the requirements and contextual constraints of the software operation Performs...

IDEMIA Secure Transactions , a division of IDEMIA Group, is the leading technology provider making it safer and easier to pay and connect. With unmatched expertise in cryptography and credential issuance, IST is trusted by over 2,000 financial institutions, mobile operators, automotive manufacturers, and IoT providers worldwide. Every day, IST secures billions of essential transactions, ensuring the highest levels of data protection and convenience. Purpose This role transforms functional and non-functional requirements into design to reach simple, efficient and maintainable software that best addresses customers' requirements and optimize IDEMIAs business value Responsibilites Designs and specifies the overall software structure, core elements, interfaces (API), technologies (COTS) and properties to meet the criteria of performance, security, budget, quality and risks induced by the requirements and contextual constraints of the software operation Performs architecture...