Senior System Engineer jobs in Sofia – Browse 244 openings on RoboApply Jobs

Senior System Engineer jobs in Sofia

Open roles matching “Senior System Engineer” with location signals for Sofia. 244 active listings on RoboApply Jobs.

244 jobs found

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companyMangroup logo
Full-time|On-site|Sofia

We are seeking a highly skilled Senior System Engineer to join our innovative team at Mangroup. In this role, you will be responsible for designing, implementing, and maintaining complex systems that meet the evolving needs of our clients. Your expertise will contribute to the development of cutting-edge solutions, ensuring optimal performance and reliability.As a Senior System Engineer, you will collaborate with cross-functional teams to drive projects from conception to deployment. You will leverage your technical knowledge and problem-solving abilities to tackle challenges and deliver exceptional results.

Apr 10, 2026
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companyBosch Group logo
Full-time|On-site|Sofia, Engineering Center Sofia

Join our innovative team at Bosch Group as a Senior Systems Architect for Automotive. In this pivotal role, you will leverage your expertise to design and implement cutting-edge automotive systems that enhance vehicle performance and safety. Collaborate with engineers, stakeholders, and clients to develop comprehensive solutions that meet the evolving needs of the automotive industry.

Nov 11, 2025
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companydevexperts logo
Full-time|On-site|Sofia

Join devexperts as a Senior Systems/Networks Engineer (Tier 3) where you will play a crucial role in managing and optimizing our network and systems infrastructure. You will be responsible for troubleshooting complex issues, implementing scalable solutions, and collaborating with cross-functional teams to enhance system performance and reliability.

Mar 27, 2026
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companyBosch Group logo
Full-time|On-site|Sofia, Engineering Center Sofia

Join our dynamic team at Bosch Group as a Senior Automotive Systems Expert. In this pivotal role, you will leverage your extensive experience in automotive systems to drive innovation and excellence in our engineering projects. You will work closely with cross-functional teams to develop cutting-edge solutions that meet the evolving needs of our clients and the automotive industry.

Nov 10, 2025
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companyOcado Group logo
Full-time|Hybrid|Sofia, Bulgaria

About the Role Ocado Group’s Mobile Fulfilment Systems team in Sofia, Bulgaria builds automation technology for online order fulfilment in retail and warehouse settings. The group combines distributed backend systems, mobile apps, and autonomous mobile robots to support rapid, scalable, and cost-effective order processing. This position sits within the In-Store Fulfilment (ISF) division. The team focuses on designing and developing cloud-based systems, progressive web apps, and web technologies that automate online order fulfilment at scale. About In-Store Fulfilment (ISF) ISF is a cloud-based platform that helps retailers efficiently fulfil online orders, improve the customer experience, and reduce operational costs. The system is live in over 1,000 stores across 11 countries and 4 continents. Each week, it manages more than 300,000 customer orders, covering every stage from routing and cubing to picking, buffering, loading, and dispatching. What You Will Do Architect, develop, and maintain large-scale distributed systems with high availability. Lead technical projects from initial planning through design and delivery. Apply best practices in testing, code quality, monitoring, and alerting to ensure reliable solutions. Shape the long-term architectural and product direction for the team. Integrate AI tools such as Claude Code, Gemini, and others into backend systems. AI and Engineering Focus AI is already part of the software development process at Ocado. The team is growing its AI capabilities and welcomes backend engineers with hands-on experience or a strong interest in AI. This role offers the chance to advance AI initiatives while contributing to core engineering projects.

Apr 20, 2026
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companyBosch Group logo
Full-time|On-site|Sofia, Engineering Center Sofia

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.

Nov 10, 2025
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companyMainstream logo
Full-time|On-site|Sofia, Sofia, Bulgaria

Join Mainstream, the foremost cloud services provider in Southeast Europe, boasting a network of over 8 data centers across the region. Our extensive team of cloud experts is dedicated to guiding clients through every phase of cloud transformation—from assessing readiness for migration to developing robust cloud strategies, and managing public, hybrid, and multi-cloud environments.Through strategic partnerships with industry leaders like Amazon Web Services and Microsoft Azure, along with our proprietary Mainstream Cloud platform, we offer a diverse array of cloud solutions. This, combined with our certifications and collective expertise, empowers businesses to harness new opportunities through technology. With a trusted client base of over 300, we pride ourselves on being a reliable cloud partner.We are currently seeking a System Engineer to enhance our Managed Environment team.Your responsibilities will include:Monitoring the health, availability, and performance of our infrastructure and cloud services, including servers, virtual machines, databases, and networking components.Responding to alerts, managing tickets, and resolving incidents while adhering to defined Service Level Agreements (SLAs).Analyzing monitoring alarms and escalating complex issues based on established protocols, including availability for after-hours support when necessary.Conducting server and service administration tasks across various cloud environments.Supporting the implementation, configuration, and verification of cloud infrastructure in accordance with approved designs and procedures.Assisting in coordinating and executing infrastructure and cloud changes in alignment with change management practices.

Jan 16, 2026
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companyBosch Group logo
Full-time|On-site|Sofia, Engineering Center Sofia

Join Bosch Group as a Systems Expert in the Automotive sector, where you will play a pivotal role in driving innovative solutions and enhancing system performance. Collaborate with a dynamic team to develop cutting-edge technologies and ensure high-quality standards in automotive applications.

Nov 10, 2025
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companySumUp logo
Full-time|On-site|Sofia, Bulgaria

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.

Feb 19, 2026
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companyPlaytech logo
Full-time|On-site|Sofia

Join Playtech, a leading global gaming technology company, as a System Administrator. In this pivotal role, you will be responsible for maintaining and optimizing our IT infrastructure, ensuring system stability, and providing top-tier support to our users. You will work with a dynamic team of IT professionals to implement solutions that enhance operational efficiency and security.

Mar 31, 2026
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companyexperian logo
Full-time|On-site|Sofia

Your Role:Craft sophisticated data engineering solutions that facilitate data analysis and deliver on-demand insights.Design and implement scalable, cloud-native data platforms and pipelines tailored for both structured and unstructured data.Develop robust ETL/ELT pipelines utilizing cutting-edge cloud-native services.Take the lead in architecting and refining complex multi-platform data architectures to enhance performance, scalability, and growth.Implement best practices in data quality, governance, lineage, security, and observability.Collaborate with analytics, product, engineering, and business teams to transform requirements into dependable, high-value data solutions.Provide technical mentorship and guidance, ensuring compliance with established engineering standards and quality protocols.Enhance and evolve data solutions using contemporary cloud technologies (such as S3, Redshift, Glue, or comparable services).You will report to the Data Modeller - Manager.

Feb 20, 2026
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companyLivePerson Inc. logo
Full-time|On-site|Sofia Office

Location: Sofia OfficeCompany: LivePerson Inc. About LivePerson LivePerson Inc. (NASDAQ: LPSN) helps leading brands connect with consumers through its Conversational Cloud platform. Companies such as HSBC, Chipotle, and Virgin Media use LivePerson to facilitate millions of interactions every month. The platform supports nearly a billion conversational exchanges monthly, using extensive datasets and advanced safety features to improve customer experience with Conversational AI. Role Overview The Senior Support Engineer serves as a technical expert for customers in the EMEA region. This role focuses on resolving complex technical issues, mentoring teammates, and acting as a bridge between customers and internal product teams. What You Will Do Address advanced technical concerns from customers across the EMEA region. Diagnose and resolve complex problems for global clients, aiming for high customer satisfaction. Take ownership of escalated support cases and resolve advanced technical challenges. Develop subject matter expertise in specific technical areas or platform features, and work with product developers to improve support tools and troubleshooting methods. Act as the main support liaison between customers, Product Management, Engineering/R&D, and other business units. Share customer feedback with development and service teams to address recurring issues. Mentor and train team members to handle technical escalations, reducing the need for further escalation. Analyze pain points and recurring issues, and help refine processes and requirements for better support tools and solutions. Lead or contribute to internal projects within the Support organization.

Apr 15, 2026
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companyOcadogroup logo
Full-time|On-site|Sofia, Bulgaria

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

Apr 28, 2026
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companyLifted An Upwork Company logo
Senior Web Software Engineer

Lifted An Upwork Company

Full-time|On-site|Sofia

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

Apr 15, 2026
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companyEntain logo
Full-time|On-site|Sofia

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

Apr 17, 2026
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companyTrading 212 logo
Full-time|On-site|Sofia

Join Our Mission to Empower Wealth BuildingAt Trading 212, we are transforming the landscape of trading and investing. Our innovative products are designed to empower individuals to build their wealth effectively.We believe that a culture rooted in excellence and rapid innovation is essential to our success.With over 4.5 million clients and more than €30 billion in assets under management, we have quickly established a reputation for scale and trust in the financial industry.Your ResponsibilitiesArchitect and implement dynamically scalable, self-healing infrastructure and applications across public and private cloud platforms.Continuously enhance and automate infrastructure designs to boost resilience and scalability.Utilize IaaS automation tools such as Terraform, AWS CloudFormation, and Ansible.Facilitate the migration of environments from on-premise infrastructure to AWS/GCP.Analyze application and infrastructure KPIs, proactively identifying and addressing bottlenecks and potential issues.Design infrastructures that ensure zero downtime.Drive continuous performance improvements and troubleshoot critical components.Engage in knowledge sharing with colleagues to foster growth as the company evolves, valuing honest feedback as a crucial tool for success.Required QualificationsProven expertise in public cloud platforms, specifically AWS and GCP.In-depth understanding of DevOps principles and their practical application in various workflows; experience with CI/CD tools such as GitHub, GitLab, or Jenkins.Hands-on experience with containerization technologies and orchestration systems, including Docker, Kubernetes, EKS/ECS, and Nomad.Solid understanding of Infrastructure as Code practices using tools like Terraform and AWS CloudFormation.Experience in implementing and maintaining configuration management tools such as Puppet and Ansible.Expertise in relational databases including AWS RDS, MySQL/MariaDB/PostgreSQL, and TimescaleDB.Familiarity with messaging services like Amazon MSK, Amazon MQ, Kafka, and RabbitMQ.Strong proficiency in Python and Bash scripting.Preferred QualificationsExperience with on-premise private cloud infrastructure.

Apr 14, 2025
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companyYotpo logo
Full-time|On-site|Sofia

At Yotpo, we're at the forefront of revolutionizing trust and loyalty in eCommerce. Our AI-driven Reviews and Loyalty solutions empower brands to transform casual browsers into loyal customers and advocates. With deep integrations across the eCommerce landscape and the backing of over 30,000 global brands, Yotpo offers seamless omnichannel experiences that enhance conversion rates, strengthen customer relationships, and foster sustainable growth.As we innovate Yotpo's next-generation platform, we are also investigating how artificial intelligence can create smarter, more personalized eCommerce experiences. If you're passionate about leveraging AI technology alongside modern engineering practices, this position offers a unique opportunity to make a significant impact.In this role, you will be instrumental in developing and refining our platform, ensuring it is reliable, scalable, and serves as a robust foundation for subsequent product lines. You will face complex challenges, including constructing critical applications capable of efficiently managing large datasets and high data volumes.

Feb 16, 2026
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companySumUp logo
Full-time|On-site|Sofia, Bulgaria

Join the Global Bank tribe at SumUp, where we are developing the essential infrastructure and core services that empower our merchants with digital bank accounts. Our vision is to be the foremost banking partner for small merchants worldwide, delivering a seamless, straightforward, and affordable banking experience tailored to their unique needs.As a member of the Global Bank tribe, you will play a pivotal role in building SumUp's digital banking ecosystem. Collaborate within a diverse, autonomous, and cross-functional team that brings product ideas from concept to reality. Embrace the opportunity to work with talented colleagues from 32 different nationalities spread across cities like Cologne, Berlin, São Paulo, Sofia, London, and Vilnius, all driven by a shared commitment to ownership, purpose, and supporting small businesses in thriving.As a Senior Backend Engineer, you will take charge of enhancing and maintaining a high-throughput banking ecosystem for our merchants within the Global Bank Tribe. Your contributions will be instrumental in architecting and evolving our global banking platform, ensuring high availability, scalability, and observability across various regions. If you're eager to gain hands-on experience in building products for business accounts, card payments, and transfers across Europe and Latin America for SumUp's Global Bank, we invite you to embark on this exciting journey with us!

Mar 10, 2026
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companyMan Group logo
Full-time|On-site|Sofia

About Man GroupMan Group is a leading global alternative investment management firm dedicated to delivering superior performance for our sophisticated clients through our Systematic, Discretionary, and Solutions offerings. Leveraging exceptional talent and cutting-edge technology, our investment strategies encompass both single and multi-manager approaches, supported by extensive research and spanning public and private markets across major asset classes, with a strong emphasis on alternatives. We prioritize building deep partnerships with our clients, creating customized solutions to achieve their investment objectives for the millions of retirees and savers they serve.Headquartered in London, we manage $227.6 billion* and operate in numerous offices worldwide. Man Group plc is publicly traded on the London Stock Exchange under the ticker EMG.LN and is part of the FTSE 250 Index. For additional information, please visit www.man.com.* As of 31 December 2025The TeamOur team is currently experiencing significant investment aimed at optimizing the trading capabilities across AHL, Numeric, and Discretionary teams. The engineering team collaborates closely with the Trading Desk and the Execution Research team to design, develop, and maintain a world-class trading capability. We operate trading floors in London, Hong Kong, Boston, and New York, managing over $8 trillion annually.We are consistently broadening the markets, asset classes, and regions in which we trade while also diversifying our trading styles. Our team is tasked with creating innovative and adaptable software and tools to keep pace with these changes.

Mar 19, 2026
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companyExperian logo
Full-time|On-site|Sofia

Join Experian as a Senior Data Analytics Engineer in Sofia, where you will play a pivotal role in transforming data into actionable insights. You will collaborate with cross-functional teams to design and implement robust analytics solutions that drive strategic decisions and enhance business performance.

Jan 14, 2026

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