Senior Software Engineer - AI SaaS Solutions

Jobgether is looking for a Senior Software Engineer to help build and improve AI-powered SaaS products. This role centers on designing and developing software that brings intelligent automation to business users. Role overview As a Senior Software Engineer, you will work closely with colleagues from different specialties to create and refine AI-driven applic…

About Cast AI Cast AI builds an automation platform that combines artificial intelligence with Kubernetes infrastructure. The goal: improve performance, reliability, and efficiency in production environments by embedding autonomous decision-making into cloud systems. Manual management of Kubernetes and AI environments becomes less effective at scale. Cast AI addresses this by providing continuous automation that adapts infrastructure as conditions change. This approach helps reduce manual work, cuts costs, and boosts operational efficiency. More than 2,100 companies rely on Cast AI, including Akamai, BMW, Cisco, FICO, HuggingFace, NielsenIQ, Swisscom, and TGS. Global Team and Culture Headquartered in Miami, Cast AI operates across 34 countries, including Europe, North America, Latin America, and APAC. The team values diverse perspectives and intentionally builds a global workforce. Recent Milestone In January 2026, Cast AI reached unicorn status after a strategic investment from Pacific Alliance Ventures, part of the Shinsegae Group (a conglomerate valued at over $50 billion). The company’s valuation now exceeds $1 billion. Location Requirements This Senior Software Engineer - Infrastructure role is open to residents of Bulgaria, Croatia, Estonia, Greece, Hungary, Latvia, Lithuania, Poland, Romania, Slovakia, Slovenia, and Ukraine.

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.

About Cast AI Cast AI builds an automation platform focused on streamlining cloud-native and AI infrastructure at scale. The platform integrates autonomous decision-making into Kubernetes and cloud environments, aiming to optimize performance, reliability, and efficiency in production. Over 2,100 companies, including Akamai, BMW, Cisco, FICO, HuggingFace, NielsenIQ, Swisscom, and TGS, use Cast AI to automate away manual tickets, alerts, and adjustments, replacing them with systems that adapt infrastructure dynamically. This shift helps organizations improve efficiency and reduce costs. Our Team and Culture Headquartered in Miami, Cast AI operates in 34 countries across Europe, North America, Latin America, and APAC. The company values diversity and inclusion, drawing on a wide range of perspectives to inform its work. In January 2026, Cast AI reached unicorn status following a strategic investment from Pacific Alliance Ventures, part of the Shinsegae Group. The company’s valuation now exceeds $1 billion. Location This Senior Software Engineer role is open to candidates based in Bulgaria, Croatia, Estonia, Greece, Hungary, Latvia, Lithuania, Poland, Romania, Slovakia, Slovenia, or Ukraine. Role Overview Senior Software Engineers at Cast AI contribute to core product features across several teams. Openings are available in the following areas: Workload Optimization: Automate resource management by dynamically adjusting allocations to lower costs and improve application reliability. Karpenter: Enhance integration between Karpenter and Cast AI, adding enterprise features to the open-source Kubernetes autoscaler and supporting large-scale deployments. Reporting: Build scalable solutions for data reporting and analysis, improving user experience and insights. Join Cast AI to help shape the future of autonomous infrastructure.

Join our dynamic team as a Senior AI Engineer at Castaigroup Inc. in the Harness Engineering division. We are looking for an innovative and skilled engineer to drive the development of cutting-edge AI solutions. You will play a crucial role in designing, implementing, and optimizing AI algorithms and systems that impact our wide range of clients across Europe.

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.

At DigitalGenius (DG), we are dedicated to revolutionizing the online shopping experience. Our innovative approach combines conversational AI with robust integrations to ensure a seamless journey for customers.Unlike conventional chatbots that often lead to frustration, our advanced e-commerce chatbot is designed to effectively address customer issues from start to finish. It proactively identifies carrier problems, conducts investigations, generates return labels, manages refunds, and facilitates replacements—all before the customer even realizes there was an issue.We pride ourselves on collaborating with prestigious brands such as On, Holland & Barrett, Cozey, Caraway, MyTheresa, Clarins, Air Up, Universal Music Group, and Huda Beauty, who share our vision.Our team consists of passionate and inquisitive individuals who believe in the product we are creating and the mission behind it. Each member operates with autonomy and responsibility, but true success comes from our collective collaboration to make all the components work in harmony.DigitalGenius is a place for those who are driven, curious, and ambitious. We excel by surpassing expectations—not out of obligation, but because we genuinely care.As a Solutions Engineer at DigitalGenius, you will play a pivotal role in the post-sales phase, working closely with Product and Customer Success Managers (CSMs) to design, implement, and enhance AI-driven customer service solutions for our clients. You will take on technical ownership of customer implementations, ensuring that solutions are scalable, secure, and aligned with both business objectives and product capabilities.

Role overview Speechify is looking for a Senior Software Engineer to join the team in Split, Croatia. This position centers on developing and refining the core experiences within Speechify's product suite. What you will do Collaborate with cross-functional teams to design, build, and enhance software features that directly affect users Offer ideas and technical insight to help shape the direction of Speechify's products Create and improve solutions aimed at increasing user engagement and satisfaction Location This role is based onsite in Split, Croatia.

Join Space Inch as we embark on an exciting mission!We are developing the next generation of B2B AI solutions and are seeking a talented AI Engineer to take charge of creating, managing, and deploying production-ready LLM-powered services. Your role will involve designing and maintaining high-performance AI systems that enhance our platform features, delivering precise, data-driven recommendations and optimizing intelligent workflows with scalable performance and reliability.As we grow our team, we are eager to welcome multiple collaborators who will contribute to various projects within this innovative stack.Our Mission, Vision, and ValuesAt Space Inch, we prioritize aligning with our clients and team members to ensure a thorough comprehension of their requirements. We are dedicated to delivering outstanding results while facilitating the personal and professional development of our staff. Every team member has access to an executive coach as part of our commitment to support their growth.Working at Space InchOur diverse team of over 70 professionals is primarily located in Croatia, with additional members in South America, Serbia, and the US. While remote work is encouraged, we also have a Zagreb office for those who prefer a hybrid setup.Travel may be necessary on occasion, including our annual company retreats in Croatia.Our projects are designed with an end-to-end approach and a long-term vision.We actively promote a healthy work/life balance for all employees.

Datatonic is looking for a Senior Software Engineer in Zagreb, Croatia. This role focuses on building the interface between people and artificial intelligence, developing GenAI solutions that turn complex data into practical insights on Google Cloud. Senior engineers at Datatonic guide projects from the first business idea through to secure, scalable, and approachable applications. What You Will Do AI Application Development: Design, build, and launch full-stack applications that use LLMs and AI to improve user experiences. System Design: Create high-level designs and data flow diagrams. Choose Google Cloud services that fit performance and scaling needs. Software Quality: Write production-ready code, automate CI/CD, and handle monitoring and security throughout the application lifecycle. Client Consulting: Act as a technical advisor, turning client needs into clear technical plans and recommending suitable frameworks. Team Collaboration: Work closely with Data Scientists, ML Engineers, DevOps, and Data/Analytics Engineers to bridge model outputs and front-end features. What We Look For Experience: At least 3 years in software engineering, with a track record of shipping production code. Technical Skills: Frontend: Skilled with modern frameworks like React, Svelte/SvelteKit, or Angular, and understand UI/UX basics. Backend: Strong in Python (FastAPI or Flask) or Node.js, with experience in REST/GraphQL and microservices. Data: Solid background in database design (SQL and NoSQL) and scaling data in the cloud. Cloud & DevOps: Comfortable with GCP tools (Cloud Run, GKE, Firebase) and secure coding practices (OAuth, OIDC, OWASP). Mindset: Adaptable, able to manage technical debt, mentor others, and explain complex choices to non-technical partners. Why Work at Datatonic? Industry Recognition: Datatonic is a Google Cloud 10x Partner of the Year, working at the leading edge of AI.

Role overview Speechify is looking for a Senior Software Engineer to focus on Windows and desktop applications in Split, Croatia. The role involves building dependable, high-performance software that enhances how users interact with the product. Regular collaboration with cross-functional teams is expected, along with active participation in every stage of the software development lifecycle. What you will do Design, develop, test, and maintain desktop software for Windows platforms Collaborate with teams across the company to deliver new features and improvements Mentor junior engineers and help support their professional development Encourage and apply best practices throughout the software development process Location This role is based onsite in Split, Croatia.

Join Our Team at HuzzleAt Huzzle, we specialize in connecting exceptional talent with leading companies across the UK, US, Canada, Europe, and Australia. Our diverse clients range from innovative startups to established digital agencies and tech platforms in the SaaS, MarTech, FinTech, and EdTech sectors. Unlike typical outsourcing models, we facilitate direct placements, allowing you to become an integral part of your client’s team.About Our ClientOur client is a rapidly growing technology firm within the SaaS domain, dedicated to providing cutting-edge digital solutions that empower businesses to optimize their operations, enhance productivity, and accelerate growth. With a formidable presence in international markets and a fast-expanding customer base, they are committed to cultivating a high-performing sales team to propel pipeline development and revenue generation.Position OverviewWe are seeking a seasoned Senior Business Development Representative (BDR) with over 5 years of experience in SaaS or technology sales. This high-impact remote sales position emphasizes outbound prospecting, pipeline generation, and engaging key decision-makers in targeted accounts.In this pivotal role, you will drive growth by uncovering new business opportunities, qualifying leads, and arranging valuable meetings for the closing team.Core ResponsibilitiesImplement multi-channel outbound prospecting strategies (cold calling, emailing, LinkedIn outreach) aimed at B2B SaaS buyers.Identify and engage key decision-makers (VPs, Directors, C-level executives) across designated industries.Qualify leads based on Ideal Customer Profile (ICP), budget, authority, need, and timeline using frameworks such as BANT or MEDDIC.Schedule high-quality discovery calls and product demonstrations for Account Executives.Design personalized, data-driven outreach plans for target accounts.Maintain and oversee pipeline activities via CRM systems (Salesforce, HubSpot).Collaborate with marketing and sales teams to ensure coherent messaging and campaign alignment.Consistently surpass KPIs including meetings booked, pipeline generated, and conversion rates.

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.

Speechify builds tools that turn text into speech, helping over 50 million people convert PDFs, books, Google Docs, news articles, and websites into audio. Our mission is to remove reading as a barrier to learning, so users can read faster, remember more, and enjoy deeper learning. Our product lineup includes apps for iOS, Android, Mac, a Chrome extension, and a web app. Speechify has earned recognition from Google as 'Chrome Extension of the Year' and received Apple’s 2025 Design Award for Inclusivity. The team is fully remote, with nearly 200 colleagues who bring experience from Amazon, Microsoft, Google, Stanford, and other leading organizations. We value engineers and researchers who want to shape the future of accessible learning. Role Overview Speechify is hiring a Software Engineer for the Data division of our AI team. This person will help lead data collection efforts for model training, focusing on building and maintaining data infrastructure at petabyte scale. The work blends infrastructure, engineering, and research to deliver high-quality datasets efficiently and affordably. The main focus is improving our data ingestion pipeline. What You Will Do Find and connect new audio data sources to our ingestion pipeline. Manage and grow our cloud infrastructure on Google Cloud Platform using Terraform. Work with scientists to improve cost, throughput, and data quality, supporting large-scale model training. Partner with the AI team and company leadership to define the dataset roadmap for future consumer and enterprise products. Location This position is remote, based in Split, Croatia.

We are on the lookout for a highly skilled technical leader with a solid foundation in full-stack engineering, complemented by a successful track record in delivering innovative IT products and applications. This role is perfect for someone who has not only developed production-quality code but has also navigated the complexities of project delivery, mentored developers, and implemented sophisticated solutions utilizing AI-assisted development tools. Contract Type: Independent Contractor AgreementWhat You'll Do Spearhead a team of senior full-stack developers while overseeing technical execution across various projects. Develop robust, scalable full-stack features using Next.js, React, TypeScript, Prisma, and PostgreSQL. Leverage Cursor IDE and AI coding assistants to enhance development workflows and productivity. Design system architectures, create database schemas, and optimize performance-critical queries. Integrate and manage third-party APIs such as Stripe, Supabase, and various music platforms. Construct advanced admin dashboards, internal tools, and intricate user interfaces. Manage projects from inception to completion — encompassing requirements gathering, architecture design, deployment, and optimization. Establish and promote best practices for code quality, testing, documentation, and deployment pipelines. Guide and mentor developers, conduct code reviews, and champion engineering excellence across the team.

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.

At Dev.Pro, we are dedicated to creating meaningful projects that make a difference in the lives of millions globally. We believe in the unique contributions of every individual and are committed to fostering a diverse, friendly, and supportive work environment.We are seeking an exceptional Technical Team Lead who excels in navigating complex technical challenges and possesses the ability to communicate effectively with CTO-level stakeholders. This hybrid position allows for a balanced mix of onsite and remote work. As the key onsite leader for a vital payment harmonization platform, you will guide and mentor a high-performing team, connecting intricate C/Perl legacy systems with modern enterprise standards. Your primary focus will be on collaborating with technical leadership, maintaining architectural integrity, and delivering high-throughput, reliable payment solutions tailored to client requirements. What’s in it for you:Engage with a mission-critical, real-time payment platform that facilitates high-volume, multi-processor transactionsTransform a legacy C/Perl system into a robust, enterprise-standard architectureCollaborate with senior leadership to influence decisions that shape the platform and enhance client success Are you the right fit?6+ years of experience with distributed payment systems and high-throughput processing2+ years in the payments domain with a comprehensive understanding of the payment lifecycle (authorization, capture, settlement)Proficient in payment orchestration, gateway integrations, tokenization, smart routing, retries, and multi-processor environmentsFamiliarity with authorization and settlement pipelinesKnowledgeable in card networks (Visa, Mastercard, Amex) and ISO 8583/SPDH messagingUnderstanding of PCI DSS complianceProficient in PostgreSQL and Unix-based systems, with knowledge of networking fundamentalsDemonstrated ability to collaborate with senior engineers, architects, and technical leads in Agile teamsExcellent communication skills, capable of translating technical challenges into clear business strategiesA proactive, solution-oriented mindset, open to new ideas and constructive feedbackUpper-Intermediate English proficiency and native-level CroatianDesirable Skills:Experience with low-level C cores and advanced Perl data-transformation layersFamiliarity with C and Perl or a willingness to learnExperience with Google Cloud Platform (GCP)Key Responsibilities:In this role, you will represent the Dev.Pro partnership, identify areas for project development, and ensure the team delivers measurable, high-efficiency results that exceed client expectations.

Jobgether is seeking a Customer Success Manager based in Croatia to support a partner company. This position focuses on helping enterprise and mid-market clients gain measurable value from an advanced AI-powered SaaS platform. Key Responsibilities Serve as a trusted advisor to senior client stakeholders, connecting business objectives to practical outcomes through data-driven workflows and AI tools. Guide customers in aligning their strategies with the platform’s features to support business growth. Oversee complex customer programs, often navigating ambiguity and shifting requirements. Combine relationship management, technical problem-solving, and commercial insight in daily work. Influence client renewals and identify new opportunities for account expansion. Shape and improve customer success processes while executing them directly. What We Look For Background working with SaaS products and AI-driven solutions. Comfort in collaborative and customer-focused environments. Ability to balance strategic planning with hands-on execution. Strong communication and relationship-building abilities. This position fits those who enjoy both designing and running customer programs, adapt well to change, and value close teamwork with clients and colleagues.

Role Overview everai is looking for a Senior AI Vertical Mini-Series Director on a freelance basis. This fully remote role centers on leading the production of content that highlights new developments in AI technology. What You Will Do Direct and shape mini-series focused on AI verticals Collaborate with a distributed team of professionals Ensure each series communicates technical topics in a clear, engaging way Location This position is open to candidates based in Croatia and offers full remote flexibility.