Senior Backend Developer - Node.js

Jobgether seeks a Senior Backend Developer skilled in Node.js to help build digital financial products for a global audience. This position centers on creating backend systems that are secure, scalable, and reliable. Key responsibilities Design and implement backend infrastructure using Node.js Develop and maintain APIs with attention to performance and reli…

Join Speechify, a pioneering company dedicated to transforming the way people engage with content through innovative text-to-speech technology. We are seeking a talented and motivated Software Engineer to join our Platform team in Split, Croatia. In this role, you will contribute to the development of our cutting-edge platform, ensuring robust performance and exceptional user experiences.

Jobgether is looking for a Senior Data Engineer based in Croatia. This position focuses on building and refining the company’s data infrastructure to support analytics and business insights. Role overview The Senior Data Engineer will design, implement, and maintain scalable data pipelines. This includes ensuring that data systems remain reliable and accurate as the business grows. Key responsibilities Develop and optimize data pipelines for scalability and performance Maintain the integrity and reliability of data systems Work closely with cross-functional teams to support data-driven decision-making Collaboration This role involves regular interaction with colleagues from different departments to align data architecture and analytics with organizational goals.

Jobgether is looking for a Multicloud Platform Engineer based in Croatia. This position centers on designing and building cloud platforms that support business growth across several environments. Role overview The Multicloud Platform Engineer will work closely with different teams to improve cloud architecture. The main focus is on ensuring that platforms remain scalable and perform reliably as needs evolve. What you will do Design and implement cloud solutions that work across multiple environments Collaborate with colleagues from various functions to strengthen cloud architecture Develop systems that balance client requirements with operational efficiency Requirements Strong background in cloud technologies Experience working with multicloud platforms Ability to support scalable and high-performing cloud environments

Join datatonic as a Security and Compliance Engineer, where you will play a vital role in ensuring the integrity, confidentiality, and availability of our systems and data. You will work closely with cross-functional teams to implement and maintain security controls and compliance frameworks. Your expertise will help us to identify and mitigate risks while fostering a culture of security awareness across the organization.

WHO WE ARECognism is the top provider of B2B data and sales intelligence in Europe. Our innovative platform empowers businesses of all sizes to quickly identify, connect with, and engage qualified decision-makers, leading to more successful deals. With our headquarters in London and offices worldwide, thousands of revenue teams rely on Cognism’s accurate contact data and contextual signals to simplify their prospecting efforts.THE ROLEThe Senior Application Security Engineer is a pivotal member of Cognism's Information Security Team, reporting directly to the Application & Infrastructure Security Manager. Your mission is to embed security by design into our engineering and product organization by incorporating modern application security practices throughout the entire development lifecycle. We prioritize building secure, scalable, and resilient systems while enabling rapid and safe business innovation. Our goal is to foster a culture where the fastest path for our engineers is also the most secure path.In this role, you will collaborate closely with Product, Engineering, Architecture, and Data teams to identify risks within our platform, including those introduced by AI-powered features. You will ensure that appropriate controls, guardrails, and security patterns are integrated into the product from its inception, always balancing the product experience for our numerous large global enterprise customers.

About UsSyntio, a proud member of the Datatonic family, merges extensive data engineering expertise with advanced cloud and AI capabilities to tackle intricate data challenges. We specialize in designing and developing scalable data platforms that empower organizations to harness their data effectively and efficiently. Our teams engage with real-world problems across various sectors, utilizing cutting-edge cloud technologies and engineering best practices.Our projects span all major public cloud platforms, including AWS, Google Cloud Platform, and Azure, where we integrate managed services with open-source tools to create robust, scalable, and future-proof data solutions.Driven by innovation, our dedicated R&D department ensures we remain at the forefront of the rapidly evolving data landscape, continuously pushing the limits of what is achievable.Job DescriptionWe are searching for a dedicated Machine Learning Engineer who is excited about transforming concepts into practical, production-ready machine learning systems. This hands-on role requires a technical mindset as you will prototype, build, and deploy comprehensive machine learning solutions while adhering to best practices in engineering, cloud, and MLOps.Whether you are an emerging talent or possess significant experience, you will play a vital role in impactful projects, collaborate closely with clients, and evolve your responsibilities over time. If you thrive at the intersection of AI, cloud, and real-world problem-solving, you'll feel right at home here.

We are in search of a talented DevOps Engineer who is passionate about optimizing processes to create smoother, faster, and more intelligent systems. If you thrive on clean automation, resilient architectures, and the satisfaction of deploying solutions that work seamlessly, we want to hear from you. As part of our Software Innovation team, you will collaborate closely with product teams to achieve DORA-level excellence, which encompasses swift delivery, increased reliability, and minimal surprises. Your role will include modernizing legacy systems that still rely on manual processes and shaping the evolution of our cloud-native platform.Key Responsibilities:Manage both legacy self-hosted systems and contemporary cloud environments to enhance automation and dependability.Simplify complex manual workflows into streamlined, reproducible automated processes and CI/CD pipelines for rapid and secure code deployment.Oversee significant data and system modifications in production, establishing automation and safety measures to ensure predictable and low-risk workflows.Incorporate practical security enhancements into tools and workflows, ensuring deployment scripts are secure and minimizing risky manual operations.Collaborate with global teams to manage urgent releases while integrating SOC2 compliance practices directly into automation and process design.

Join our dynamic team at Endava as a Senior DevOps Engineer specializing in AWS or Azure cloud platforms. In this pivotal role, you will be responsible for designing and implementing robust DevOps solutions, enhancing our Continuous Integration/Continuous Deployment (CI/CD) pipelines, and fostering a collaborative environment that drives innovation and efficiency.Your expertise will not only support our client delivery initiatives but also play a key role in shaping our technological roadmap. If you are passionate about cloud technologies and thrive in a fast-paced environment, we would love to hear from you!

Join our dynamic team at Endava as a Senior DevOps Engineer specializing in AWS or Azure. In this pivotal role, you will be responsible for automating and optimizing our deployment processes while ensuring the reliability and scalability of our infrastructure. You will collaborate with cross-functional teams to deliver high-quality software solutions and enhance our cloud capabilities.

About Us:At Xenon7, we create a unique intersection where exceptional tech talent meets premium opportunities! We collaborate with top-tier enterprises and pioneering startups on thrilling, state-of-the-art projects that utilize the latest advancements across various IT domains, including Data, Web, Infrastructure, and AI. Our proficiency in developing IT solutions and providing on-demand resources enables us to partner with clients on transformative initiatives that fuel innovation and foster business growth. Whether empowering global organizations or teaming up with groundbreaking startups, we are dedicated to delivering advanced, impactful solutions that tackle today’s most intricate challenges.About the Client:Become a part of one of Egypt’s leading financial institutions, celebrated for its comprehensive suite of banking services, which includes Institutional Banking, Personal Banking, and Islamic Banking. With a robust global footprint through over 50 branches and correspondents, we cater to a diverse and dynamic client base. As we embark on an ambitious digital transformation journey, we are focused on harnessing the latest technologies to create a cutting-edge data architecture that redefines our performance and service delivery.Position Overview:We are in search of a highly driven and experienced Senior Data Engineer to enhance our expanding data team. In this pivotal role, you will lead the design and development of scalable, high-performance data pipelines and lakehouse architectures. Collaborating closely with data modelers, analysts, and business stakeholders, you will deliver reliable, real-time, and batch-based data solutions that underpin our analytics and AI-driven strategies.Key Responsibilities:Design, implement, and optimize data pipelines utilizing both batch and streaming processing frameworks.Architect and maintain data lakehouse solutions using Apache Iceberg and object storage technologies such as S3.Implement scalable Data Vault and Star Schema models.Build and manage real-time ingestion pipelines with technologies like Kafka, Spark, or Flink.Integrate and orchestrate workflows using tools such as Airflow, dbt, NiFi, or Airbyte.Enforce data governance, quality, and access control policies.Troubleshoot pipeline performance and reliability issues.

Join Our Innovative TeamAt Syntio, a proud member of the Datatonic family, we leverage our expertise in data engineering, cloud technology, and artificial intelligence to tackle intricate data challenges. Our mission is to create and implement scalable data platforms that empower organizations to utilize their data effectively and practically. Our collaborative teams engage with real-world issues faced by our clients in diverse industries, employing cutting-edge cloud technologies and exemplary engineering practices.We work across all prominent public cloud platforms—AWS, Google Cloud Platform, and Azure—integrating managed services with open-source tools to develop robust, scalable, and future-ready data solutions.Driven by innovation, our dedicated R&D department keeps us at the forefront of the data landscape, constantly pushing the limits of what’s achievable.Your RoleWe are in search of a talented Data Engineer to enhance our team—an individual who thrives on managing data pipelines, enjoys resolving technical challenges, and aspires to advance their career in a modern data engineering setting. Whether you're just beginning your career or have several years of experience, we seek candidates with a strong foundation in data warehousing or integrations, proficiency in Python or Java, and familiarity with tools like Git.

Join datatonic as a Senior AI & Cloud Operations Engineer, where you'll play a pivotal role in enhancing our cloud operations and AI solutions. You will be responsible for the design, implementation, and maintenance of scalable AI solutions in cloud environments. Your expertise will drive innovation and efficiency across our operations.

Jobgether is looking for a Senior Full-Stack Engineer with strong skills in Python and React. This position is based in Croatia. Role overview This role centers on building and maintaining web applications. The Senior Full-Stack Engineer will work with both backend and frontend technologies, focusing on reliable performance and clean, maintainable code. Key responsibilities Develop and maintain web applications using Python and React Ensure applications run efficiently and meet performance standards Collaborate with cross-functional teams to design solutions that are user-friendly and effective Requirements Significant experience with Python and React Background in full-stack web development Ability to work closely with teams from different disciplines

About WingWing stands as a global leader in virtual talent, propelled by significant venture capital and headquartered in San Francisco. We harness our extensive reach, a vast pool of applicants, and robust operational know-how to create state-of-the-art AI and automation tools. Our mission is to empower businesses to streamline workflows, maximize revenue, and tap into exceptional global talent.As we evolve, we are developing a cutting-edge outbound marketing engine aimed at effectively engaging small to mid-sized businesses on a large scale. This initiative calls for a unique role that deftly combines engineering, automation, rapid experimentation, and go-to-market execution.About the RoleWe are seeking a full-time GTM Automation Engineer to design, automate, and enhance our outbound growth systems. This hybrid position merges expertise in Clay automation, light engineering skills, outbound infrastructure management, experimentation, and impactful copywriting.In this role, you will construct and oversee the driving force behind our outbound initiatives: Clay workflows, enrichment pipelines, domain infrastructure, multi-tool integrations, personalization systems, and data analytics dashboards. You will conduct high-velocity experiments, create conversion-oriented outbound copy, troubleshoot deliverability issues, and scale outreach to hundreds of thousands of leads.Collaboration with our marketing, product, and sales teams will be essential, but you will have significant ownership and autonomy over your domain. The systems you develop will directly influence our pipeline, revenue, and go-to-market strategies. This is a high-impact, technical role situated at the crossroads of engineering and growth, where your contributions will have a profound effect.ResponsibilitiesYou will take charge of the complete outbound automation ecosystem, including:1. Clay Workflows & Lead Infrastructure- Develop sophisticated Clay workflows for data scraping, enrichment, verification, scoring, routing, and personalized outreach.- Utilize APIs, webhooks, and custom coding to streamline data pipelines.- Create ideal customer profile (ICP) logic, triggering systems, and multi-step lead processes.2. Multi-Domain Email Infrastructure, Deliverability, Verification- Configure hundreds to thousands of domains, including warming, DNS, DMARC, DKIM, and SPF setups.- Establish scalable campaign systems in Instantly, leveraging Apollo data.- Master email verification tools such as LeadMagic and BounceBan.- Ensure deliverability and sending health across all domains.- Implement verification, data cleansing, and bounce prevention methods.3. Experiments & Optimization- Launch multiple outbound experiments weekly, measuring their effectiveness, and continuously optimizing for success.

Join the Printec Team!At Printec, we are at the forefront of business-to-customer transaction technology across Central and Eastern Europe. With over 35 years of experience, we provide innovative technological solutions that redefine transactions, ensuring seamless and secure interactions.Our offerings range from click & collect parcel delivery and unattended vending machines to digital onboarding and electronic signature solutions. We are dedicated to enhancing the safety, speed, and ease of digital transactions.Did you know? Printec powers many of your everyday transactions!Watch our video to explore our business solutions.

D-ploy is a premier IT and Engineering Solutions provider operating across the EMEA region, including Switzerland, Germany, the Czech Republic, Austria, the UK, and the USA. Our mission is to deliver cutting-edge IT services and solutions to top-tier clients while emphasizing reliability, efficiency, and building long-term partnerships that enhance IT productivity and business value.We are seeking a skilled IT Onsite Support Engineer to provide dedicated support to end-users in a professional and regulated environment in Zagreb.Key Responsibilities:Deliver first and second level IT support, including hardware, software, mobile devices, and peripherals.Serve as the primary onsite contact for end-user IT issues.Troubleshoot incidents and service requests through our ticketing system (ServiceNow).Provide timely and professional user support, both desk-side and remotely.Document all activities and resolutions accurately in the ticketing system.Assist with IT onboarding for new employees, including equipment setup and user training.Maintain and enhance knowledge base documentation.Contribute to initiatives for continuous service improvement.

Join Speechify as a Software Engineer focusing on Data Infrastructure & Acquisition. In this role, you will be instrumental in developing robust data systems that facilitate seamless data acquisition and management. Your contributions will enhance our product's capabilities, driving innovation and improving user experience.

Jobgether is looking for a Senior DevOps Software Engineer with strong Azure experience to help build and maintain cloud infrastructure. This position is based in Croatia and focuses on supporting reliable, scalable, and secure application environments. Role overview The Senior DevOps Software Engineer will design, implement, and manage cloud infrastructure and CI/CD pipelines on Azure. The role involves collaborating with development teams to optimize deployment processes and improve overall system performance. What you will do Design and manage Azure-based cloud infrastructure Implement and maintain CI/CD pipelines Work with development teams to streamline deployments Ensure applications meet high standards for availability, scalability, and security Requirements Extensive experience with Azure cloud services Strong background in DevOps practices and CI/CD pipelines Ability to collaborate effectively with software development teams

We are looking for a skilled technical leader with extensive full-stack engineering experience and a strong track record in delivering innovative IT products and applications. If you have a passion for creating production-quality code and have led project delivery processes while mentoring developers, this position is perfect for you. You will be working with advanced AI-assisted development tools to shape complex solutions. Contract Type: Independent Contractor AgreementYour Responsibilities Lead and mentor a team of experienced full-stack developers while overseeing technical execution across multiple projects. Develop scalable full-stack features utilizing Next.js, React, TypeScript, Prisma, and PostgreSQL. Leverage Cursor IDE and AI coding assistants to enhance development efficiency and productivity. Design system architectures, create database schemas, and fine-tune performance-critical queries. Integrate and manage third-party APIs (e.g., Stripe, Supabase, various music platforms, and SaaS services). Build sophisticated admin dashboards, internal tools, and intricate user interfaces. Take ownership of projects from inception through to deployment and optimization. Set and uphold best practices for code quality, testing, documentation, and deployment pipelines. Guide developers, conduct code reviews, and foster engineering excellence within the team.Qualifications A proven history of significant contributions to the development and delivery of IT products or applications. Demonstrated leadership experience in managing development teams and processes. Strong practical expertise with modern full-stack technologies and cloud architectures. Profound knowledge of database design, performance optimization, and scalability considerations. Experience in integrating external APIs and third-party platforms into production environments. Comfort with remote work and asynchronous collaboration. A proactive problem-solving approach, strong sense of ownership, and product-centric mindset.