Senior API Engineer (French Speaker)

Join inetum2 as a Senior API Engineer and play a crucial role in developing and optimizing our API solutions. We are seeking a talented individual who is fluent in French and possesses a strong background in API development. Your expertise will help us deliver exceptional services to our clients.

Location: Fully Remote - NYC preferred. Open to US remote or EU remote (Must be able to overlap with EST 6+ hours daily)Employment Type: Full-timeCompensation: $200,000 - $275,000Join an exciting opportunity with our client, a pioneering leader in the blockchain industry, as a Senior Golang Engineer on their core backend team. They have developed an innovative real-time parimutuel prediction market platform on Solana, designed to seamlessly integrate rapid 60-second to 30-minute prediction markets into both livestream environments and web platforms.After successfully raising a $1M pre-seed round in April 2026, led by key venture players in the Solana ecosystem, they are expanding their infrastructure to accommodate high-concurrency traffic patterns. As one of the initial backend engineering hires, you will take ownership of essential systems that facilitate market creation, settlement, and automated payouts during high-stakes global livestream events.Key Responsibilities:System Ownership: Architect, develop, and sustain production-grade, low-latency backend systems capable of managing thousands of concurrent market resolutions.Concurrency & Performance: Implement advanced Go concurrency patterns to handle real-time data flows and high-frequency transaction processing.Infrastructure & Scaling: Oversee and optimize distributed systems, ensuring idempotency, consistent ordering guarantees, and robust failure recovery.Observability: Spearhead production debugging initiatives using logs, metrics, tracing, and profiling to ensure 24/7 system reliability.Technical Autonomy: Operate independently in a dynamic startup environment, influencing the foundational architecture of an emerging product category.

About the Role TransPerfect’s Unbabel team in Lisbon is looking for a Backend Engineer with experience in Python or Go. This role focuses on building and improving backend services that power cross-platform translation solutions for enterprise clients. The team values reliability, scalability, and seamless performance as it develops intelligent language products. Main Responsibilities Design and implement reliable backend architectures and core services. Create, maintain, and optimize codebases with attention to testing and efficiency. Develop, support, and enhance critical services in production environments. Advance the architecture to support scalability, resilience, and high performance. Analyze complex technical problems and help prioritize initiatives with product and engineering teams. Promote continuous improvement, automation, code quality, and adherence to architectural best practices. Work with cross-functional teams to deliver solutions that meet changing business and technical needs. Troubleshoot and prototype to address platform and service challenges quickly. Location This position is based in Lisbon, Lisboa, Portugal.

Role Overview Inetum2 is hiring a Senior Application Production Engineer focused on Business Intelligence and Data Management in Lisbon. This position plays a key part in keeping our applications running smoothly and reliably. What You Will Do Monitor and maintain the performance of BI and data applications. Work closely with teams across the company to support and improve data-driven processes. Troubleshoot issues to minimize downtime and ensure service quality. Contribute to ongoing improvements that strengthen our decision-making with better data.

SingleStore is seeking a Software Engineer - University Graduate to join the team in Lisbon, Portugal. This entry-level role centers on building real-time technology that supports business operations worldwide. Engineers here see projects through every stage, from initial design to deployment, and collaborate closely with experienced team members. The culture values teamwork, creative problem-solving, and celebrating milestones together. Role overview This position offers hands-on experience with the full product lifecycle. Engineers contribute directly to meaningful projects and have the opportunity to learn from seasoned colleagues. The team often works together in a collaborative setting and enjoys social activities outside the office as well. What you will do Develop new features using technologies like WASM Enhance fault tolerance in SingleStore clusters Optimize SQL query performance using SIMD and LLVM code generation Design and implement search and cost modules for the query optimizer Participate in all phases of development, including coding and testing Engineers in this role work closely with a small team and gain insight into various aspects of the business. Requirements Bachelor’s degree in Computer Science, Electrical Engineering, Computer Engineering, or a related field Strong grasp of computer science fundamentals, such as operating systems, concurrency, multithreading, and server architectures Proficiency in C++ or C programming Solid understanding of algorithms and data structures Interest in developing highly reliable software

Role overview GoCardless is looking for a Senior Software Development Engineer based in Lisbon, Portugal. The main focus is on developing and refining software that helps businesses handle payment processing more easily across the globe. What you will do Collaborate with engineers to design, build, and launch new product features Improve existing systems with an emphasis on performance and security Support a dependable and user-friendly experience for customers The team This engineering group values quality and the impact of their work. Team members prioritize collaboration and technical skill in their daily projects.

About Us At Hitachi Digital Services, we are a global leader in digital solutions and transformation, leveraging our extensive engineering expertise and industry insights to modernize, optimize, and manage mission-critical platforms at scale. Join Our Team Our Center for Artificial Intelligence (CAAI) serves as the engineering and architecture hub for AI at HDS. This practitioner-led center is dedicated to realizing Hitachi’s global AI ambitions through repeatable and governed delivery. Our team is responsible for developing reference architectures, reusable components, and evaluation methodologies that can be deployed across various client environments, including cloud and hybrid solutions. Your Role As an AI Engineer, you will design, build, and operate AI capabilities that can be seamlessly integrated into real-world applications. This includes workflows powered by large language models (LLMs), retrieval-augmented generation (RAG), and agent-based systems, all maintained to production standards. Key Responsibilities Develop end-to-end AI solutions, encompassing data preparation, model integration, evaluation, deployment, and operational monitoring. Translate business and delivery requirements into practical AI designs, collaborating closely with architects, platform engineers, and client stakeholders. Create reusable assets, such as reference implementations, patterns, templates, and internal libraries. Adhere to production best practices, including rigorous testing, version control, CI/CD processes, and performance optimization. Deliver high-quality AI components independently, mentor junior team members, and enhance CAAI’s reusable assets. Manage small to mid-sized AI workstreams from conception through to release and operational transition. Engineer RAG and agent-based features with comprehensive evaluation and failure mitigation strategies.

Join our innovative team as a Senior Network Engineer in Product Development, where you will leverage your expertise to enhance our next-generation network solutions. Your role will involve working with industry-standard practices, interfaces, operating systems, and protocols including DOCSIS 3.0/3.1, SIP, and PacketCable.We seek candidates with a robust understanding of TCP/IP, IPv6, BGP, OSPF, Multicast, and MPLS, with working knowledge of IS-IS. Your extensive experience in Ethernet and IP services such as Ethernet Private Line, Private LAN, Dedicated Internet, and Managed Router will be crucial for success in this role.As a Subject Matter Expert, you will support Layer 2 and Layer 3 protocols essential for Business Services, providing guidance on OAM and CFM, as well as RFC2544, Y.1564, and Y.1731.This position is centered around Network Automation, Software Defined Networks, and Network Virtualization within our Commercial Services line of business. You will play a key role in evaluating, designing, trialing, and deploying our next-generation products and services.Your hands-on experience with national Metro-E networks across multiple vendors, ideally within a service provider environment, will be beneficial. Collaborating with architecture, business units, service delivery, and operations teams, you will drive the ongoing evolution and support of our existing platform.The ideal candidate will possess practical knowledge of managed services for customer network implementations.

Join inetum2 as a Server Virtualization Engineer, where you will play a crucial role in optimizing server performance and enhancing virtualization solutions. Your expertise will drive innovative approaches to server management and deployment, ensuring our infrastructure remains robust and efficient.

Join inetum2 as a .NET Software Engineer and take your career to the next level! We are looking for passionate individuals who thrive in a dynamic environment and are eager to contribute to innovative projects. You will collaborate with a talented team to design, develop, and maintain software solutions that drive our business forward.

Role Overview Speechify is hiring an iOS Core Product Software Engineer in Lisbon, Portugal. This role focuses on building and improving our core iOS product. The work centers on delivering strong user experiences and advancing the app’s capabilities. What You Will Do Design, build, and maintain features for the iOS platform Collaborate closely with product, design, and engineering teams Contribute to high-quality software solutions that shape the core Speechify experience Location This position is based in Lisbon, Portugal.

QIMA seeks a Senior Manager of Data & Web Engineering based in Lisbon. This position leads a team dedicated to applying data and technology in support of marketing objectives. The role involves guiding the design and development of web applications that serve client requirements and help grow QIMA’s digital footprint. Role overview This leadership role centers on managing a team responsible for both data and web engineering. The focus is on building solutions that align with marketing strategies and deliver value to clients. Main responsibilities Oversee the design and development of web applications Direct efforts to use data and technology to advance marketing goals Ensure projects meet client needs and support QIMA’s digital presence Location This position is based in Lisbon.

Important Notice:To ensure your application is considered, please apply exclusively through our official website or directly associated posts on platforms like LinkedIn, Indeed, BuiltIn, or Hackajob. Sensor Tower will never request any form of payment or sensitive information such as bank details during the application process. All communications from Sensor Tower will originate from email addresses ending in sensortower.com. Interviews will be conducted via phone or Zoom, and we will not move conversations to alternative email addresses or text messages.To Recruitment Agencies:We do not accept unsolicited resumes. Please refrain from sending resumes to our job alias, employees, or any other locations associated with Sensor Tower, as we will not be responsible for any fees related to unsolicited applications.About the Role:We are seeking innovative engineers to enhance our database operations and manage our expanding data volumes, currently in the tens of terabytes. Your role will involve gathering insightful data and contributing to the development of exceptional products and features that cater to our users' needs.A Day in the Life:As noted by our Engineering Team Lead, Sasha Yelkovenka, the role involves working with significant data volumes, ensuring our customers access it swiftly, and providing them with convenient tools for data consumption. The team thrives on a culture of ownership and collaboration, often partnering over Zoom to share knowledge and achieve optimal results.

SingleStore is hiring a Software Engineer Intern to join the Helios team in Lisbon, Portugal for Summer 2026. This is a paid, 12-week internship designed to provide hands-on experience with real-time technologies that support business operations around the globe. Internship Experience Interns at SingleStore work side by side with engineering teams, contributing directly to projects that move quickly from concept to production. Each intern takes ownership of a project, following it through the full product lifecycle. Throughout the program, experienced engineers provide mentorship and share both technical and business insights. Collaboration extends beyond engineering, with opportunities to work with product, marketing, and sales teams. Achievements are celebrated together, both in the office and at events across Lisbon. What you will do Join small teams to develop and test new product features Deploy code to production incrementally during the internship Experience the full software development process from start to finish Build a broad understanding of SingleStore’s products and business Requirements Currently enrolled in a Bachelor’s program in Computer Science, Electrical Engineering, Computer Engineering, or a related field Strong foundation in computer science fundamentals Proficiency in at least one programming language: JavaScript, Golang, or TypeScript Interest in creating highly reliable software Solid understanding of algorithms and data structures Preferred experience Familiarity with operating systems, distributed systems, concurrency, multithreading, or server architectures

At Thought Machine, we are on a groundbreaking mission to eliminate outdated technology from the banking sector. Our innovative core and payments technology is designed to operate seamlessly in the cloud, laying the groundwork for modern banking.Having expanded rapidly over the past few years, our team now comprises over 550 talented individuals across offices in London, New York, Singapore, Sydney, and our newly launched Engineering Hub in Lisbon. With more than £500 million raised in funding, we boast a diverse group of investors including Molten Ventures, Eurazeo, Intesa Sanpaolo, Temasek, Nyca Partners, JPMorgan Chase Strategic Investments, and Standard Chartered Ventures.We cultivate a dynamic workplace culture that encourages excellence and enjoyment, often recognized for our outstanding employee experience. Sifted magazine has honored us with one of the highest Glassdoor ratings among UK fintech companies, and we have been acknowledged by Global Finance Magazine as one of the world's most innovative fintechs. Furthermore, the Financial Times recognized us as one of Europe’s fastest-growing companies for two consecutive years, and we were named a UK Best Employer for 2026.As an Engineering Manager, you will play a crucial role in driving our software engineering initiatives at Thought Machine. Our engineers tackle unprecedented engineering challenges across the technology stack, producing high-quality code that is scalable, secure, and user-friendly. You will oversee the complete lifecycle of projects, from engineering design to implementation, ensuring that both backend services and frontend experiences meet our clients' diverse needs.We serve a wide range of clients, from the largest financial institutions to regional banks. Your role will involve crafting customizable user experiences that cater to various personas, bridging the gap between back-end and front-end systems to deliver exceptional solutions.This is a full-time, permanent position based in our Lisbon office, where collaboration and innovation are at the forefront of our engineering efforts.

We are seeking a skilled Electrician Maintenance Technician to join our dynamic team in Lisbon. As a part of our commitment to sustainability and excellence, you will be responsible for maintaining and repairing electrical systems, ensuring utmost efficiency and safety in operations. You will collaborate with a dedicated team to troubleshoot issues, perform regular maintenance checks, and implement improvements. Your expertise will contribute significantly to our mission of delivering reliable environmental solutions.

Join Us at GoCardlessGoCardless is a pioneering global bank payment platform, empowering over 100,000 businesses, from innovative startups to established enterprises, to effortlessly collect and send payments through direct debit, real-time payments, and open banking solutions.Every year, we process more than US$130 billion in payments across 30+ countries, enabling our customers to manage both recurring and one-off payments with ease, eliminating the stress and high costs often associated with payment processing. Our AI-driven solutions enhance payment success rates and minimize fraud, while our open banking connectivity allows access to over 2,500 banks, facilitating faster, more informed decision-making.Headquartered in the UK, with offices in London, Leeds, and additional locations in Australia, France, Ireland, Latvia, Portugal, and the United States, we are committed to creating an inclusive and supportive workplace.At GoCardless, we prioritize your success. Our hiring process is designed to be inclusive and accessible. If you require assistance or adjustments, please reach out to your Talent Partner — we are here to support you!Remember, you don’t have to meet every requirement to apply. If this role excites you, we encourage you to apply!Engineering at GoCardlessAs an Engineering Manager, you will tackle a range of technical challenges from streamlining banking schemes to optimizing dashboard performance.You will thrive as an Engineering Manager at GoCardless if:You are passionate about fostering an exceptional engineering culture within GoCardless and the broader tech community.You enjoy collaborating and learning from colleagues with diverse backgrounds and experiences.You take pride in your work and its positive impact on real customers.Our engineers actively shape the engineering culture both internally and externally, contributing to open-source projects (GitHub) and sharing insights through post-mortems, conferences, and more.

Aghanim is hiring a Mid-Level/High-Level DevOps / SRE Engineer in Lisbon. This role focuses on managing and improving our production platform, which runs on Google Cloud Platform (GCP) and Google Kubernetes Engine (GKE). Cloudflare sits at the front, Datadog provides observability, and CI/CD pipelines run through GitHub Actions. Work closely with Senior and Principal engineers to strengthen reliability, expand monitoring, and reduce manual operational work. The systems you support handle high loads and must be ready for sudden traffic spikes. What You Will Do Platform Operations (GCP/GKE) Manage and support production systems on GCP, with a focus on GKE and other managed services. Carry out platform enhancements and operational tasks as directed by more senior engineers. Infrastructure as Code & Delivery Enablement Apply infrastructure changes using Terraform and, where needed, Terragrunt. Develop and maintain Helm charts and Kubernetes manifests. Improve reliability of GitHub Actions and CI/CD workflows, including deployment automation. Monitoring & Observability (Datadog) Create and manage Datadog dashboards and monitors to ensure effective alerting. Find and address monitoring gaps in key system components. Refine alerts to cut noise and improve signal quality. Incident Management Participate in incident response and operational support: triage, mitigation using runbooks, escalation, and follow-up remediation. Contribute to postmortem reviews with clear facts, timelines, and actionable remediation steps. Security Fundamentals (DevSecOps) Set up and operate security tools and monitoring systems. Help triage findings and implement solutions under supervision. Promote secure-by-default practices such as secrets management, access control, and baseline hardening. Cost Awareness Understand and manage operational costs for the platform.

Join TransPerfect, a well-established company that embodies a dynamic start-up culture, and become part of a team that values creativity and entrepreneurial spirit. We are currently seeking a Junior Frontend Engineer to enhance our global team, where you will play a pivotal role in the quality, development, and execution of our software products. If you're eager to contribute to a growing organization and make a significant impact, we want to meet you!About Our TechOps Team:The TransPerfect TechOps team has been integral to our success for over a decade, delivering technology and services that have greatly improved the efficiency of our clients and colleagues. From enhancing workflows for our team members to developing foundational services for our GlobalLink platform, we focus on creating scalable client interfaces that empower users to navigate complex ecosystems seamlessly.

About DashlaneDashlane is committed to providing unparalleled credential security essential for the success of businesses and their employees. Millions of users and over 25,000 brands globally, including Michelin, Air France, and Forrester, trust Dashlane for its innovative solutions, patented zero-knowledge security, and exceptional user experience. Founded in Paris, we have expanded to New York and Lisbon, now employing over 300 passionate Dashlaners worldwide.We are searching for individuals who leverage AI tools to enhance efficiency, creativity, and impact in their roles. At Dashlane, innovation drives us, and we value continuous learning while striving for excellence as a unified team. Discover more about life at Dashlane, including how we work, how we hire, and the benefits of being a Dashlaner. About the RoleWe are looking for a Staff Engineer to enhance the reliability, performance, and quality-by-design of Dashlane’s Web Platform. This pivotal technical leadership position will influence long-term architectural strategies while empowering teams to deliver with greater speed and confidence on a large scale.