Senior Software Engineer - Secure AI Agent

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

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

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

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

At SumUp, we recognize that small businesses are the driving force behind Europe's economy. Our mission has always centered around empowering these businesses to flourish. We are now embarking on an exciting new venture: a stablecoin designed to ensure payments are instant, cost-effective, and fully compliant with regulations.This is a unique opportunity to contribute to a product that sits at the convergence of fintech, cryptocurrency, and regulatory compliance, supported by a profitable organization that serves over 4 million merchants across 35+ markets.What’s the opportunity?We are seeking a Senior Backend Engineer who is passionate about building innovative solutions from the ground up. This role is ideal for someone who thrives in fast-paced environments and desires to enhance their technical skills in a high-impact field. You will collaborate closely with our Staff Engineer and cross-functional teams to bring our stablecoin project to fruition.This newly created position is pivotal for a high-priority project. It entails a dynamic, complex environment filled with learning opportunities, perfect for an individual who enjoys tackling challenging problems and delivering high-quality code.Your responsibilities will include:Building from the ground up: Participate in technical discovery and MVP development for SURO, coding daily in Kotlin or Go.Designing reliable systems: Assist in creating high-SLA, service-oriented systems that integrate with our ledger, reconciliation, and treasury platforms.Delivering quality: Write clean, maintainable code with a focus on reliability, security, and observability.Collaborating across teams: Work alongside Product, Finance, Legal, and Banking teams to ensure features comply with regulatory standards.Expanding your skills: Learn from seasoned engineers and deepen your expertise in payments, compliance, and blockchain technologies.Owning features end-to-end: Take full responsibility for specific components from design through deployment and monitoring.

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.

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 LucidLinkLucidLink is a dynamic startup dedicated to revolutionizing data accessibility and security. As remote and hybrid work models have gained prominence, our innovative cloud-based solution allows teams to effortlessly access and collaborate on files from any location, functioning like a local hard drive.Our technology is expertly tailored for handling large files and extensive datasets, making real-time collaboration seamless. We proudly serve renowned clients across the Media & Entertainment sector, including Paramount, Warner Brothers, Epic Games, Spotify, A+E, and Netflix. Since our inception in 2016 by industry veterans, we have supported over one billion customer files across more than 40 countries. Headquartered in San Francisco, California, we also have an engineering hub in Sofia, Bulgaria, and a remote workforce spanning North America, Europe, and Australia.

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

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.

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!

Speechify seeks a Senior Software Engineer in Sofia, Bulgaria to focus on core product experiences. This position plays a central role in shaping how users interact with Speechify’s technology, with a strong emphasis on product functionality and performance. Key responsibilities Work closely with other engineers to develop and refine important product features Use modern technologies to improve the user experience Deliver solutions that boost product reliability and efficiency Role impact Engineers in this role influence the quality and direction of Speechify’s platform. The work sets standards for both user experience and technical innovation throughout the company’s products.

Join Our Innovative Team as a Senior Backend Software Engineer! The Mobile Fulfilment Systems team at Ocado Group is pioneering state-of-the-art automation solutions for in-store and warehouse online order fulfilment. We harness the power of distributed backend systems, user-friendly mobile applications, and advanced autonomous robots to facilitate rapid, scalable, and cost-efficient order collection. As a key member of our Mobile Fulfilment Systems team, particularly within the In-Store Fulfilment (ISF) division, you'll be involved in designing and developing distributed cloud-based systems, PWA mobile applications, and web technologies aimed at automating the fulfilment of online customer orders at scale. What is In-Store Fulfilment? ISF is a comprehensive cloud-based solution that empowers stores to efficiently fulfil customer orders, enhancing the shopping experience while minimizing operational costs. We are currently operational in over 1,000 stores across 11 countries and 4 continents, handling more than 300,000 customer orders weekly. In Your Role as a Senior Software Engineer, You Will: Design, develop, and maintain large-scale, high-availability distributed systems. Lead technical initiatives from conception through to implementation, fully owning the planning, coordination, design, and execution processes. Ensure solutions consistently meet quality standards by adhering to best practices in testing, code quality, monitoring, and alerting. Contribute to the long-term architectural and product vision. Utilize AI tools, such as Claude Code, Gemini, and GitHub Copilot, to enhance our development processes. Engage in all phases of the software development lifecycle within an agile team framework. Continuously seek to enhance our processes, workflows, and tools. Collaborate closely with business and product partners to translate system requirements into engineering solutions. Participate in our on-call rotation to support production services. Mentor and train both new and existing team members in their professional development.

Are you ready to embark on an exciting IT career journey with Dev.Pro? Join our exclusive screening process that provides valuable career insights along with personalized feedback on your skills.At Dev.Pro, a company driven by professionals, we offer engaging and challenging projects with world-class clients, utilizing a modern technology stack that caters to both technical and non-technical specialists. What you will gain by applying:A customized career growth plan aligned with your professional aspirationsExpert feedback aimed at enhancing your skills for sustained successPriority consideration for suitable job openings within Dev.ProThe chance to collaborate with leading global corporations and engage in industry-defining projects We would love to learn more about you so that when an ideal position arises, you will be the first we contact! Are you the right fit?Over 5 years of experience in software development using C# and .NETProven experience in building backend services and REST APIsFamiliarity with .NET Core / .NET 6+ or newer versionsExtensive experience with relational databases (SQL Server, PostgreSQL, MySQL, etc.)Experience with cloud platforms such as Azure, AWS, or GCPExperience in designing or developing microservices or distributed systems in production environmentsA solid understanding of application architecture and design patternsStrong grasp of object-oriented programming (OOP) principlesBonus SkillsExperience with message queues or event-driven systems (Kafka, RabbitMQ, Service Bus, etc.)Familiarity with Docker or containerized environmentsExperience with CI/CD pipelinesTake the first step today:1. Submit your CV in English.2. Arrange a 15-30 minute call with recruiters from Dev.Pro.3. Participate in a 30-minute interview focused on assessing your soft skills.4. Complete a 1-hour online evaluation of your technical skills by our experts.In less than 2 hours, you will have a clear understanding of your standing in your career and be ready for exciting job offers from Dev.Pro! About Dev.ProDev.Pro is a US-based outsourcing company with a creative and ambitious mindset, delivering exceptional software products since 2011. Renowned for our strong focus on human values, Dev.Pro fosters a work environment that is fair, inclusive, open-minded, and welcoming to individuals from diverse backgrounds. By joining Dev.Pro, you will experience growth alongside professionals dedicated to supporting your career journey.Interested in learning more?Click here

Join Tieto Tech Consulting as a Senior Software Engineer in Test and be a pivotal part of our dynamic team in Sofia. In this role, you will leverage your extensive testing skills to ensure the quality and reliability of our software products. Your expertise will help us to innovate and improve our solutions, creating impactful results for our clients.

Join the Bosch Group as a Senior Software/System Requirements Engineer in the Automotive Sector, where you will play a pivotal role in designing and optimizing software solutions for cutting-edge automotive technologies. As a key member of our engineering team, you will engage in requirements engineering, ensuring that our products meet the highest standards of quality and performance.

About the Role Dev.Pro is looking for a Senior Software Engineer / Team Lead to guide a cross-functional team focused on advancing a high-throughput payment orchestration platform. This remote position is based in Sofia, Sofia City Province, Bulgaria. What You Will Do Lead a delivery team, setting priorities and maintaining clear direction in partnership with client stakeholders. Combine hands-on software development with team leadership responsibilities. Drive the implementation of key features from concept through release. Clarify complex requirements and help the team navigate ambiguity. Foster open communication and collaboration within the team. About Dev.Pro Dev.Pro builds technology solutions used by millions worldwide. The company values diversity and inclusion, recognizing and supporting the unique strengths of every team member.