Senior Software Engineer | AI SaaS Development Opportunity

Jobgether is looking for a Senior Software Engineer in Bulgaria to help build AI-powered SaaS products. This role centers on designing, implementing, and maintaining software applications that use artificial intelligence to improve user experiences and support business goals. Role overview This position involves close collaboration with teams across the company. The Senior Software Engineer will work with others to define project requirements, create technical specifications, and deliver reliable, high-quality code. What you will do Design and develop software applications that incorporate AI features Maintain and enhance existing systems to meet evolving needs Work with cross-functional groups to gather requirements and clarify technical details Contribute technical expertise to expand the company’s portfolio of AI-driven products Requirements Experience as a software engineer, with a focus on designing and building applications Ability to collaborate with diverse teams and translate requirements into technical solutions Strong commitment to delivering high-quality, maintainable code

Join CyberArk as a Senior Software Engineer specializing in Secure AI Agents, where you will play a crucial role in developing innovative solutions that enhance security protocols. You will collaborate with a talented team of engineers and work on cutting-edge technology aimed at protecting critical business infrastructures.

About UsAt Redis, we are pioneers in creating the infrastructure that powers some of the world's fastest applications. Whether you're checking the weather, making a payment, or tracking your flight status online, our technology plays a crucial role. Join us in building a faster world with simpler, more efficient experiences.Our core mission is to accelerate the transition to AI-native systems globally. We are committed to delivering high-performance services that enhance developer and agent workflows, making them faster, more efficient, and easier to scale.As a Senior Engineer on our AI Services team, you will design and implement impactful memory and context capabilities for next-generation chatbots and AI agents. You will take ownership of architecture, implementation, and production deployment while ensuring high standards for quality, performance, and operability. Additionally, you will mentor emerging talent through code reviews and technical guidance, and collaborate closely with the AI Research team to align on roadmap and technical direction.This position offers a fantastic opportunity to spearhead innovation and expand the capabilities of the Redis platform in the burgeoning Agentic AI era.

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.

About UsWelcome to Redis! We are the creators of the technology that powers the fast applications that drive our modern world. Whether you checked the weather, made a purchase online, or tracked your flight today, our contributions are at work. At Redis, you will engage with cutting-edge technology that is reshaping the digital landscape, enhancing experiences for over 10,000 customers globally. Join us in our mission to create a faster, simpler world.This is a distinctive chance to influence Redis capabilities as we transition into the era of Artificial Intelligence.You will be part of the core Redis Search/Vector team, tackling some of AI’s most pressing challenges, including advanced indexing, vector and hybrid retrieval, and latency-sensitive solutions on a global scale. Your work will directly impact millions of developers by transitioning features from research to production, optimizing latency and recall while managing costs effectively.

About UsAt Redis, we engineer the technology that powers the fast applications that shape the modern world. If you've checked the weather, processed a payment, or tracked your flight online today, our technology has likely played a role. Join us in crafting a simpler and faster world with innovative solutions for over 10,000 global customers.Why You’ll Love Working HereWe are on a mission to accelerate the transition to AI-native systems. Our focus is on providing high-performance, developer-friendly services that enhance the speed and simplicity Redis is renowned for, making AI workflows more efficient and scalable.As a vital member of the Redis AI Services team, you'll play a crucial role in developing advanced memory and context functionalities essential for chatbots and AI agents. This is an incredible opportunity to drive innovation and enhance the Redis platform to meet the evolving demands of the AI era.Your ResponsibilitiesDesign and implement AI-driven features, prioritizing scalability, reliability, and performance.Foster innovation by exploring cutting-edge AI technologies and frameworks, contributing to Redis’ advancements in the AI domain.Collaborate closely with cross-functional teams, including engineering, support, and DevOps, to lead the development of the fastest NoSQL databases globally.

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.

About the Role Entain is looking for a Senior Software Engineer with deep experience in Angular to help build and improve software that shapes our user experience. This position is based in Sofia. What You Will Do Develop and maintain Angular applications that support our products and services Work closely with engineers and designers to solve technical challenges Contribute to decisions that improve code quality and user experience Help deliver reliable, high-quality software in a collaborative environment Who We’re Looking For Strong background in Angular and front-end development Experience working on complex software projects Comfortable collaborating with cross-functional teams Motivated to make a real impact on products and users

Ocadogroup is hiring a Senior Software Engineer in Sofia, Bulgaria. This position focuses on designing, developing, and implementing software solutions that support the company’s business goals. Role overview The Senior Software Engineer will work closely with colleagues from different teams to build and deliver products that align with customer needs. The role involves hands-on development and active participation in the full software lifecycle, from concept to deployment. What you will do Create and refine software designs to address business challenges Develop, test, and implement new features and applications Collaborate with cross-functional teams to ensure product quality Requirements Experience designing and building software solutions Ability to work collaboratively with colleagues from various disciplines Strong interest in technology and delivering results that make a difference

Role Overview Lifted An Upwork Company is hiring a Senior Web Software Engineer in Sofia. This position focuses on building and maintaining web applications that meet high standards for quality and user experience. The role involves hands-on design, implementation, and ongoing support of web projects. What You Will Do Design and develop web applications from concept through deployment Implement features that improve usability and performance Maintain and update existing web solutions as requirements evolve Collaborate closely with team members to deliver reliable results What We Look For Strong experience with web development technologies Commitment to writing clean, maintainable code Ability to work well with others and share knowledge Focus on delivering a smooth, effective user experience

LucidLink develops cloud-based solutions that allow teams to access data securely from anywhere. The platform is built for handling large files and extensive data sets, offering a user experience similar to a local hard drive. Founded by storage industry veterans in 2016, LucidLink enables real-time collaboration for creative organizations, including major names in media and entertainment. The company operates from San Francisco and maintains an engineering office in Sofia, Bulgaria, serving customers in over 40 countries. Role overview The Senior Fullstack Software Engineer position is based in LucidLink’s Sofia office. This role centers on building and improving the platform that supports instant, secure data access and real-time collaboration. The work directly affects how teams worldwide manage and share large-scale content. What you will do Work on technical challenges that shape global collaboration, especially in media and entertainment. Contribute to a platform designed for performance, security, and ease of use with massive data sets. Collaborate with a team of over 230 professionals, where individual input quickly influences product direction. What we value Integrity, innovation, and empathy in daily work and team interactions. Commitment to personal growth and learning as the company expands. Supportive culture that encourages advancement and open communication. Benefits Flexible paid time off Competitive salary Stock options Health coverage

Join our dynamic team at CyberArk as a Senior Software Engineer specializing in Python. In this role, you will be instrumental in designing and developing cutting-edge software solutions that secure the world's most sensitive data.We are looking for a passionate engineer who thrives in a collaborative environment and is eager to tackle complex challenges. Your expertise will help drive innovation and enhance our product offerings.

Exciting Career OpportunityJoin Teramind as a Senior C++ Developer and contribute to the development of our cutting-edge, secure, and scalable software that forms the backbone of our platform. If you are passionate about writing clean and efficient code, enhancing software architecture, and collaborating with a diverse team on impactful projects, this position is tailored for you. You will lead the entire development cycle—from conceptualizing technical solutions to refining architecture, crafting production-ready code, and guiding the evolution of our software products.Key Responsibilities• Create and implement high-quality software solutions with an emphasis on security, performance, and scalability.• Investigate, suggest, and execute innovative technical strategies to meet complex business requirements.• Enhance current architectures and legacy systems for improved performance.• Collaborate with QA and Support teams to troubleshoot and resolve technical issues.• Facilitate technical discussions and mentor colleagues on best practices in clean code, testing, and design.• Share insights that contribute to a stronger engineering culture and superior products.Qualifications• 5+ years of experience in C++11 or later.• Demonstrated experience in developing client-server applications.• In-depth understanding of scalable architecture principles and design.• Strong Git skills and experience in agile, remote teams.• Proficient in unit testing and contemporary design patterns.• A detail-oriented, proactive attitude and a desire for continuous learning.• Proficiency in English for effective communication in a global team.Preferred Qualifications• Experience in cybersecurity or privacy-centric software development.• Familiarity with Mac (Objective-C) or Windows system development (WinAPI, drivers).• Knowledge of technologies such as Boost, ClickHouse, Go, or Rust.• Understanding of AWS services.

Join CyberArk Software Inc. as a Senior Software Engineer specializing in Workload Identity. In this pivotal role, you will be responsible for designing and implementing robust software solutions that enhance the security and efficiency of workload identity management. Collaborate with a talented team of engineers, contribute to innovative projects, and drive the development of cutting-edge technology.

Join our dynamic team at CyberArk as a Senior Software Engineer specializing in Secrets Hub. In this role, you will be at the forefront of developing innovative software solutions that enhance security and manage sensitive information effectively. Your expertise will contribute to designing, implementing, and maintaining robust applications that support our clients' security needs.

Join our dynamic team at Bosch Group as a Senior Software Engineer specializing in AUTOSAR for the automotive sector. In this pivotal role, you will contribute to innovative projects that shape the future of mobility. Collaborate with cross-functional teams to design, develop, and implement cutting-edge software solutions that enhance vehicle performance and safety.

About UsAt Redis, we are at the forefront of technology, powering the applications that millions rely on every day. Our innovative solutions streamline processes and enhance user experiences across various industries. If you've ever checked the weather, made an online payment, or tracked your flight status, you've touched our technology. Join us in our mission to create a faster, simpler world.We are seeking a talented and experienced Senior Software Engineer with a passion for polyglot programming, particularly in Go. You'll play a pivotal role in advancing the Redis ecosystem by enhancing the developer experience through collaboration with open source communities and contributing to our widely used client libraries.Why You'll Love This RoleIf you thrive in a collaborative environment and have a passion for open source, this is the perfect opportunity for you. We believe that APIs should be intuitive and delightful to work with, and you’ll have the chance to drive that vision forward. Your strong engineering mindset will help transform innovative ideas into reality as you work across multiple programming paradigms.Your ResponsibilitiesContribute to the development of key client libraries like go-redis, redis-py, predis, and node-redis.Engage with open source communities to foster collaboration and innovation.Promote best practices to ensure an exceptional developer experience.Assist in adding support for new Redis features in client libraries.Act as a technical lead on cross-language initiatives.Work closely with external contributors, library users, product managers, and fellow engineers to drive projects forward.QualificationsStrong team collaboration skills.Proficiency in multiple programming languages and paradigms.Experience with open source projects and community engagement.A passion for creating intuitive and enjoyable APIs.

Mirantis seeks a Senior Software Engineer in Sofia with deep experience in Golang. This role centers on building and maintaining scalable software that meets client needs and supports business efficiency. Key responsibilities Design, develop, and support software solutions using Golang Collaborate with colleagues from various disciplines to deliver dependable, high-quality products Contribute to projects aimed at improving processes and serving client requirements What helps people thrive here Strong problem-solving skills and a drive to tackle complex technical challenges A commitment to writing clean, maintainable code Effective collaboration and communication with cross-functional teams

We are seeking a talented and motivated Senior Frontend Software Engineer to join our dynamic team at CyberArk. In this role, you will have the opportunity to lead the design and development of innovative user interfaces that enhance the user experience of our products.Your expertise will contribute to the overall success of our software solutions, ensuring they are intuitive, responsive, and visually appealing. If you are passionate about frontend technologies and eager to work in a collaborative environment, we would love to hear from you!

Role Overview Cision is looking for a Staff Software Engineer focused on Developer Experience (DevX). This remote role is open to candidates based in Hungary or Sofia, Bulgaria. The position centers on building and improving tools and platforms that help Cision’s engineering teams work more smoothly and efficiently. What You Will Do Design and integrate software solutions to streamline coding, testing, and deployment for internal engineering teams. Identify workflow challenges and implement improvements to boost developer productivity. Collaborate with engineers across the organization to shape the internal development ecosystem. Mentor other engineers and promote best practices in code quality, automation, and performance. Report to the DevX Manager (Observability & DevX). Who We’re Looking For Experienced software engineer with a background in developer tooling, platform engineering, or similar areas. Strong collaborator who communicates well with engineering peers. Comfortable leading technical initiatives and mentoring others. Committed to improving engineering workflows and internal developer experience. About Cision’s Culture Cision values curiosity, collaboration, and innovation. Team members are encouraged to share ideas and help shape the future of communication. The company supports authenticity and growth, recognizing each person’s unique contributions. Location Remote - Hungary; Sofia, Bulgaria