Senior Backend Software Engineer

Cresta is dedicated to transforming every customer interaction into a strategic advantage by harnessing the full power of contact centers. Our innovative platform merges cutting-edge AI with human expertise to enable contact centers to uncover customer insights, automate conversations, streamline processes, and empower every team member to enhance productivity. Established by the esteemed Stanford AI lab, Cresta is co-founded by Sebastian Thrun, renowned for his contributions to Google X, Waymo, and Udacity. Our leadership team includes CEO Ping Wu, co-founder of Google Contact Center AI and Vertex AI, along with Tim Shi, an early member of OpenAI.We have brought together a stellar team of AI and ML specialists, market leaders, and premier investors, including Andreessen Horowitz, Greylock Partners, Sequoia, and former AT&T CEO John Donovan. Our esteemed clients feature brands such as Intuit, Cox Communications, Hilton, and Carmax, and we have been recognized by Forbes and Bain Consulting as one of the top private AI companies globally.Join us in this exciting journey to reshape the workforce with AI. The future of work is at Cresta.

Cresta is revolutionizing the contact center industry by transforming every customer interaction into a strategic advantage. Our cutting-edge platform harnesses the power of AI alongside human intellect to deliver unparalleled customer insights, streamline communication processes, and empower teams to enhance their productivity. Founded by the visionary Sebastian Thrun, known for his groundbreaking work with Google X and Waymo, our team includes pioneering leaders in AI and machine learning, such as CEO Ping Wu, co-creator of Google Contact Center AI.Backed by prominent investors including Andreessen Horowitz and Greylock Partners, we proudly serve leading brands like Intuit and Hilton, earning recognition from industry giants like Forbes and Bain Consulting as a top-tier AI firm.Join us on this exhilarating journey to redefine the future of work in contact centers with AI at the forefront!

Join our dynamic team as a Senior Backend Software Engineer at Bolt, where you will tackle intriguing product challenges that include crafting complex algorithms for demand forecasting, optimizing real-time pricing, developing efficient routing solutions, implementing fraud detection mechanisms, and enhancing distributed systems. Our growth trajectory is impressive, and your expertise will play a pivotal role in our success.

Join the UiPath TeamAt UiPath, we harness the power of automation to revolutionize the way the world operates. Our dedication to developing top-tier enterprise software empowers businesses to harness this transformative potential.We are on the lookout for individuals who embody curiosity, drive, generosity, and authenticity. If you thrive in a dynamic, fast-paced environment and are passionate about making a difference—both for your colleagues and the broader mission of UiPath—then we want to hear from you!Your RoleAs a vital member of our Kubefabric team, you will contribute to the development and maintenance of our Kubernetes-based infrastructure, facilitating large-scale service deployments.Key ResponsibilitiesCraft, develop, and uphold high-quality, reusable, and efficient code.Optimize application performance, ensuring quality and responsiveness.Diagnose performance issues and bugs, implementing effective solutions.Collaborate with cross-functional teams to design and enhance our product offerings.Promote and establish agile engineering methodologies.Maintain a high standard of code quality, organization, and automation.Your Qualifications4+ years of experience in software engineering, proficient in languages such as C# or Java.Strong expertise in at least one programming language and its ecosystem.Experience with Cloud Systems (preferably Azure, also AWS or GCP).Solid understanding of object-oriented programming and architectural design principles.Proficient in multithreading, synchronization, TPL, and asynchronous programming.In-depth knowledge of data structures and algorithms, alongside their time/memory complexities.Comprehension of the alignment between engineering practices and broader business objectives.Experience with global teams in feature development, systems design, and engineering roadmaps.

Engage in the design and development of innovative features from front to back as a vital member of an agile/scrum team.Guarantee the creation of high-quality, scalable solutions by employing contemporary development methodologies, including clean coding practices, automated testing, monitoring, alerting, and a secure-by-design approach.Provide Level 3 support for applications in a production setting when necessary.Foster innovation by contributing fresh ideas to enhance the existing architecture, services, and processes.Continuously maintain and enhance the integration and delivery environment.Collaborate closely with the Front Office team to ensure the timely delivery of high-quality features.

Join our dynamic team at Sigma Software as a Middle Embedded Software Engineer! In this role, you will be responsible for designing, developing, and implementing innovative embedded software solutions. Collaborate with cross-functional teams to deliver high-quality products that meet our customers' needs. You will have the opportunity to work on exciting projects and enhance your skills in a supportive environment.

Cresta is on a transformative journey to redefine customer engagement by harnessing the power of AI and human expertise. Our innovative platform empowers contact centers to extract insights from customer interactions, streamline processes, and boost efficiency. With roots in the renowned Stanford AI lab, Cresta was co-founded by Sebastian Thrun, a visionary behind Google X and Waymo. Our leadership team also includes Ping Wu, co-founder of Google Contact Center AI, and Tim Shi, an early member of OpenAI. We have built a world-class team of AI and machine learning professionals, alongside industry leaders and significant investors such as Andreessen Horowitz and Sequoia. Our esteemed clients include major brands like Intuit and Hilton, and we are consistently recognized by prestigious outlets like Forbes as a leading AI company. As we expand into Romania, we are looking for talented engineers to join our new tech hub. This is a unique opportunity to shape the future of our engineering team within a remote-first environment, collaborating with colleagues across Europe, the US, and Canada.

Speechify is seeking a Software Engineer to join the Platform team in Bucharest, Romania. This group develops the technology that underpins accessibility features and enhances user experiences across Speechify’s products. Role overview This position centers on building and maintaining core platform solutions. The work directly supports how users interact with Speechify’s offerings, with a focus on making products more accessible. Who succeeds here Enjoys creating new solutions and tackling technical challenges Brings strong engineering skills to the table Values teamwork and open collaboration Approaches problems with curiosity and a willingness to learn This role offers the chance to work closely with others while shaping the foundation of Speechify’s accessible technology.

Role Overview Speechify is looking for an iOS Core Product Software Engineer to join the team in Bucharest, Romania. This role focuses on building and refining key features for the iOS platform, directly shaping the experience for users worldwide. What You Will Do Design and implement core product features for Speechify's iOS app Work closely with engineers, designers, and product managers to improve functionality and performance Optimize user experience through thoughtful engineering and attention to detail Contribute to projects that reach a global audience About the Team Based in Bucharest, the team brings together specialists from multiple disciplines. Collaboration and problem-solving are central to how work gets done, with a focus on using current mobile development technologies to deliver real impact.

Join our dynamic team at SoftwareMind as a Senior Software Engineer specializing in Typescript and Javascript. In this role, you will be pivotal in designing, developing, and maintaining high-quality software solutions. You will collaborate with cross-functional teams to define, design, and ship new features, while also enhancing existing functionalities.Your expertise will help us build scalable and robust applications that meet the needs of our clients. If you are passionate about technology and eager to work in a fast-paced environment, we would love to hear from you!

Join Veeam, the leading global provider of data resilience solutions, as we empower businesses to take full control of their data, anytime and anywhere. With over 550,000 customers worldwide, Veeam specializes in data backup, recovery, portability, security, and intelligence. We are headquartered in Seattle, and we invite you to be part of our journey as we continue to grow and innovate, impacting the world's largest brands. The future of data resilience is bright—move forward fearlessly with us!About the RoleWe are seeking a highly collaborative and organized Customer Success Engineer with a strong technical background in Veeam products. You will play a crucial role in driving long-term customer success by leading onboarding, adoption, and optimization initiatives. Your expertise will help us proactively identify churn risks, manage migrations, and uncover upsell opportunities through in-depth disaster recovery and resilience (DR&R) assessments, recovery simulations, and quarterly resilience reporting.

About PrintecPrintec Romania is a proud member of the multinational Printec Group, which operates in 16 European countries and boasts over 30 years of expertise in providing state-of-the-art electronic financial services. Our focus lies in creating innovative payment solutions that seamlessly integrate our proprietary offerings with world-class technologies from renowned vendors such as NCR Corp., Verifone, Castles Tech, Thales E-Security, and FICO.We are a team committed to excellence, driven by innovation and collaboration, delivering high-quality solutions for major banks and financial institutions. If you thrive in a dynamic, high-tech, and regulated environment, then you’ll find your home here!Your RoleAs a Senior Front-End Software Engineer, you will join our Vending Product Development Team within the Professional Services department. Your responsibilities will include designing, developing, and optimizing React-based web applications that support our advanced vending machine ecosystem, which encompasses:React-based web applications for operations management, analytics, and real-time monitoring.NET Core APIs for backend functionalityLocal Telemetry Agents (EFT-POS or Telemetry-Box terminals)Vending machines with integrated software solutionsWhat You’ll DoLead Frontend Development – Assume full ownership of developing, optimizing, and maintaining our React-based web application.UI/UX Enhancement – Implement and refine Fluent UI and DevExtreme (DevExpress) components to create a high-performance, responsive user experience.Component Architecture – Design scalable, modular, and reusable components.Performance Optimization – Enhance rendering performance, minimize bundle size, and boost responsiveness.API Integration – Collaborate closely with backend engineers to integrate REST APIs, WebSockets, and real-time data streaming.Code Quality & Standards – Uphold best practices in TypeScript, testing, and state management (Redux or React Context).Collaboration & Mentorship – Mentor junior developers, conduct code reviews, and work alongside product managers, designers, and backend engineers.

About Printec RomaniaAs a key player in the Printec Group, which operates across 16 European nations, Printec Romania brings over 30 years of expertise in pioneering electronic financial services. We excel in crafting innovative payment solutions, seamlessly integrating our proprietary technologies with those of global leaders like NCR Corp., Verifone, Castles Tech, Thales E-Security, and FICO.Our vibrant team is dedicated to excellence, innovation, and collaboration, delivering top-tier solutions to leading banks and financial institutions. If you are energized by a dynamic, high-tech, and regulated environment, we invite you to join us!Your RoleAs a Senior Back-End Software Engineer, you will become an integral member of our Vending Product Development Team within the Professional Services department. Your responsibilities will include designing, developing, and optimizing cutting-edge React-based web applications that enhance our advanced vending machine ecosystem. You will collaborate closely with the Vending Product Team Lead to define comprehensive product solution concepts, assess technologies, estimate efforts, and establish prerequisites for successful implementation.Your key responsibilities will encompass:Designing, implementing, and monitoring a robust code development and QA workflow.Estimating effort for new product feature requests (Epics/Stories/Tasks).Conducting feasibility studies for new functional requests.Collaborating with the Technical Lead to clarify new requirements and prerequisites for software development.Ensuring the design, development, and maintenance of software for Vending platforms.Applying best practices, OOP principles, and SOLID design patterns to deliver robust and scalable solutions.Utilizing .Net and related technologies to produce high-quality software applications for VendiPack.Providing technical guidance and support to team members in overcoming complex challenges.Staying abreast of the latest developments in software technologies and sharing insights with the team.Promoting a culture of code reviews to enhance quality, disseminate knowledge, and reduce bugs.Implementing a comprehensive CI process and automating builds and regression tests as much as possible.Instilling a culture of high-quality deliverables by promoting testing disciplines and automating unit and integration tests.Establishing SW quality metrics and KPIs and monitoring them closely.Addressing identified product bugs with timely fixes and patches.Creating release notes and installation instructions.Collaborating with the Technical Lead in preparing User Guides.Assisting the Technical Lead in technical presales discussions and queries.Developing training materials and programs.Support Project Implementations:Facilitating the handover of product usage and customization features to clients.

Role overview Qualysoft seeks an AI Engineer to join its Bucharest office. The focus of this position is to build and deploy AI applications that help businesses operate more efficiently. Collaboration with colleagues from a range of backgrounds is a key part of bringing AI solutions into practical, real-world systems. Main responsibilities Design and develop AI models and algorithms to solve complex problems. Collaborate with cross-functional teams to integrate AI into existing platforms. Analyze data and assess models to ensure accuracy and effectiveness. Stay informed about advances in AI and machine learning technologies. Requirements Bachelor's degree in Computer Science, Engineering, or a related field. Practical experience with AI development and machine learning frameworks. Proficient programming skills in Python, Java, or R. Strong analytical and problem-solving abilities. Ability to work independently and as part of a team. Location This role is based in Bucharest.

Welcome to SienaAt Siena, we are pioneering the first intelligence layer for customer experience. Our vision is to create a sophisticated operating system of AI agents that learn, remember, and act across every customer interaction—from support dialogues to shopping experiences, and even voice and social media communications.Siena goes beyond mere automation of support; it empowers shopping agents, cultivates a lasting memory of customers, derives actionable insights for businesses, and nurtures empathetic interactions that resonate with a human touch.We are on a mission to revolutionize how businesses perceive and engage with their customers, transforming every encounter into a learning opportunity that enhances the next interaction.Join Our TeamWe are a small yet powerful, distributed team making significant strides in the industry. Each member of our team has the ability to make a substantial impact due to the leverage we have integrated into our workflows. This approach not only accelerates our progress but also makes collaborating enjoyable.If you are passionate about creating groundbreaking solutions that have yet to exist, we invite you to continue reading. We are developing agents that do more than just respond to customers; they remember past interactions, learn continuously, and weave together experiences across various channels.Your RoleAs a Senior Full Stack Engineer at Siena, you will lead projects from conception to completion, enhancing and optimizing features within our AI-driven customer support automation platform. You will collaborate closely with product and engineering teams to influence our roadmap while developing reliable, high-performance systems. This position is ideal for engineers who relish solving real-world challenges, excel in dynamic environments, and take pride in delivering exceptional products.Key ResponsibilitiesDesign, develop, and maintain scalable features across the full stack (frontend, backend, and infrastructure).Work collaboratively with the Product team to decompose project scope and deliver iterative, high-impact releases.Contribute to an AI-first product by integrating advanced LLM capabilities into enterprise customer support workflows.Tackle complex engineering challenges, optimizing API performance and refining microservices architectures.Manage and enhance our cloud infrastructure (AWS) with a DevOps mindset.Share knowledge and mentor fellow engineers, fostering a robust engineering culture.About You5+ years of software engineering experience with a strong proficiency in Node.js, React, TypeScript, and Express.Proven expertise in developing scalable applications and systems.Adept at collaborating with cross-functional teams to achieve project goals.Strong problem-solving skills and a passion for innovative technology.

About the Role Qualysoft is looking for a Full-Stack Engineer in Bucharest to help design, build, and support scalable web applications. This role involves working closely with a skilled team to deliver reliable solutions that support business goals and improve user experience. What You Will Do Collaborate with colleagues to design, implement, and maintain web applications Contribute to both front-end and back-end development tasks Focus on building scalable solutions Help ensure a smooth and consistent experience for users Location This position is based in Bucharest.

Qualysoft seeks a Senior Integration Engineer in Bucharest to design and implement integration solutions for clients navigating digital transformation. This role centers on connecting diverse systems and ensuring reliable data and process flows. Key responsibilities Develop and maintain integration solutions across multiple platforms and technologies Work closely with clients and internal teams to gather requirements and deliver effective system connections Support digital transformation projects by enabling seamless data and process integration Location This position is based in Bucharest.

FlowX.AI builds an AI-driven multi-agent platform designed for banks and insurance companies. Our technology helps clients quickly and securely deploy mission-critical AI agents. With FlowX.AI 5.0, we now offer over 140 production-ready agents tailored for the financial sector. Gartner has recognized us in their 2025 Digital Banking Market Guide. Our clients include institutions such as OTP, Unicredit, State Street, Legal & General, and a range of smaller banks and logistics companies. Role Overview We are hiring a QA Automation Engineer in Bucharest to help ensure our applications meet high standards for performance, reliability, and scalability. This role works closely with developers, product managers, and designers to maintain and improve our testing processes. What You Will Do Design, develop, and maintain automated test suites, ideally using Playwright and TypeScript. Create and run test plans to validate software functionality and performance. Integrate automated tests into CI/CD pipelines. Perform manual testing as needed to cover edge cases, usability, and UI components. Carry out functional, regression, and system testing; identify and document defects. Work with developers, DevOps, and product/platform teams to ensure thorough test coverage. Prepare reports and insights on test outcomes. What We Look For At least 3 years of experience in QA automation. Solid understanding of Angular or React web applications and related tools. Proficiency in JavaScript or TypeScript and relational databases. Strong problem-solving skills and attention to detail. Clear communication and ability to collaborate in cross-functional teams. Preferred Qualifications Experience with performance testing tools (such as Locust, JMeter, or LoadRunner). Familiarity with Python. Understanding of DevOps practices, containerization, and CI/CD environments. What We Offer Work on enterprise software with global reach. Competitive compensation and early-stage equity options. Collaborative, high-performance environment that supports growth and development. Location and Work Arrangement This role is based in Bucharest. Hybrid and onsite work options are available.

Our MissionAt Alchemy, we strive to empower developers to bring web3 to life for a billion users, providing them with the essential tools to craft outstanding on-chain products. As the premier developer platform, we deliver robust APIs, SDKs, and tools that enable the creation and scaling of exceptional on-chain applications and rollups.Our infrastructure fuels 70% of the leading web3 teams, over 90% of web2 companies venturing into web3, and serves more than 100 million end users. Notable clients include top web3 brands like Polymarket, OpenSea, Circle, WorldCoin, as well as global giants like Shopify and Adobe.The Alchemy team is composed of experts with decades of experience in scalable infrastructure, AI, and blockchain technology, hailing from prestigious organizations and universities such as Google, Microsoft, Facebook, Stanford, and MIT.We are proudly backed by some of the world's foremost venture capital firms and institutions, including Lightspeed, Silver Lake, a16z, Coatue, Pantera, Addition, Stanford University, Coinbase, and Charles Schwab, among others.The RoleAs a Principal Software Engineer specializing in backend systems at Alchemy, you will collaborate on one of the most advanced and high-throughput distributed systems within the blockchain landscape. Your role will involve architecting and developing new systems, as well as enhancing existing ones, for a platform that supports millions of users worldwide.What You’ll Do:Establish the vision for the backend infrastructure that underpins our developer platform and APIs, leading the team in the successful execution of that vision.Design, develop, and maintain highly scalable and reliable infrastructure, APIs, and services.Lead system design discussions, facilitate stand-up meetings, and conduct code reviews.Develop and implement best practices for backend infrastructure focusing on high throughput, reliability, and low latency.Troubleshoot production issues across various services and levels of the stack.Work collaboratively with fellow engineers, technical leads, product managers, and designers.What We’re Looking For:10+ years of relevant industry experience.Bachelor’s degree in Computer Science or a related field.Proven experience in designing, building, scaling, and maintaining core backend software components (experience with API platforms is a plus).Strong problem-solving skills for complex design, scaling, latency, and performance challenges in high-throughput, low-latency production systems.