Senior Android Engineer - Mobile Platform at SumUp | Sofia, Bulgaria

About the Team: As a Senior Android Engineer in the Mobile Platform Squad, you will play a crucial role in the foundation of Mobile Engineering at SumUp. Your team is tasked with developing and maintaining an environment that empowers Mobile Developers to efficiently deliver high-quality products. Additionally, you will provide assistance and support to SumU…

Join our dynamic team as a Senior Android Developer specializing in Kotlin, where you will take charge of the design, development, and maintenance of innovative Android applications tailored for a wide array of devices. Your primary responsibility will focus on crafting high-quality mobile applications and seamlessly integrating them with backend services. You will collaborate closely with fellow engineers and developers across various infrastructure layers, making your commitment to collaborative problem-solving and sophisticated design essential for our success.Key Responsibilities:Develop clean, efficient code for Android applications.Monitor and enhance the performance of live applications at the code level.Identify and resolve bottlenecks, debug issues, and improve application performance.Conduct unit and instrumentation tests to ensure code integrity.Work collaboratively with cross-functional teams to define and design new features.Stay updated with the latest mobile technology trends, applications, and protocols.

Join SiteGround as a Product Designer specializing in mobile app design for iOS and Android platforms. You will play a crucial role in enhancing user experiences by creating intuitive and engaging interfaces. Collaborate with our development team to bring innovative concepts to life while ensuring our brand identity remains consistent across all mobile applications.

Role overview Speechify is looking for a Tech Lead to oversee Android Core Product development in Sofia, Bulgaria. This position leads a team dedicated to building and improving mobile apps for Android devices. Key responsibilities Guide and support a team of Android developers Set the technical direction for Android projects Ensure mobile applications meet quality standards Help refine and enhance Android app features Location This role is based in Sofia, Bulgaria.

Point Wild develops cybersecurity solutions to help people protect their identities and personal data online. With backing from WndrCo, Warburg Pincus, and General Catalyst, the team addresses a wide range of digital threats and aims to be a trusted resource for cyber protection. Role overview This Mobile QA Automation Engineer position centers on ensuring the reliability of Point Wild’s Android security products, including VPN apps like HotspotShield and Betternet, as well as the UltraAV antivirus app. The role combines hands-on testing with the design and improvement of automation frameworks. Work happens within an agile team that values quick results and scalable solutions. The role is fully remote, based in Bulgaria. Key responsibilities Design and enhance the Android automation framework (Espresso/Kakao-Cup) to support a growing suite of security products. Develop comprehensive testing strategies for VPN-specific scenarios, including network-dependent flows and varied connection conditions. Collaborate with developers and QA engineers to troubleshoot issues and deliver clear bug reports. Promote QA best practices and contribute to the broader QA strategy. Research and evaluate new testing tools and methods to strengthen the QA process. Location This is a remote position based in Bulgaria.

About Man GroupMan Group is a leading global alternative investment management firm dedicated to delivering superior results for sophisticated clients through our Systematic, Discretionary, and Solutions offerings. Our investment strategies, supported by talented professionals and cutting-edge technology, encompass both public and private markets across all major asset classes, with a particular emphasis on alternatives. We prioritize building strong partnerships with our clients, fostering deep relationships, and crafting customized solutions that align with their investment objectives and the needs of millions of retirees and savers.Headquartered in London, we oversee $227.6 billion* in assets and operate from multiple offices worldwide. Man Group plc is publicly traded on the London Stock Exchange under the ticker EMG.LN and is a component of the FTSE 250 Index. More information can be found at www.man.com.* As of 31 December 2025The TeamThis is an excellent opportunity to become part of one of the largest alternative asset managers in the world. Technology is integral to Man's business strategy, and we continually evolve to maintain our competitive edge. Our culture champions change and innovation, with engineering at the core of our operational framework.We are looking for a Senior C# Engineer to join one of our Risk Engineering teams. This role is a senior individual contributor position responsible for defining multi-year technical strategies and implementing them through direct involvement and extensive technical leadership across the Man Risk Platform. The ideal candidate should be passionate about utilizing AI development tools to enhance delivery and promote their use within the team.This is a fantastic opportunity to collaborate with and learn from highly skilled engineers while developing a solid foundation in investment risk and data engineering. New team members will have the chance to engage with the latest technologies to tackle upcoming challenges.

Role Overview Cision is looking for a DevOps Engineer II to help strengthen our cloud, DevOps, and SRE platforms. This remote role is open to candidates based in Bulgaria, including Sofia. What You Will Do Design and implement tools, automation, and infrastructure that support reliable, secure, and scalable service delivery across multiple environments. Collaborate with teams across the company to deliver solutions that are consistent and well-governed. Drive improvements in platform reliability, operational efficiency, and scalability. Mentor engineers and share best practices in cloud infrastructure, automation, CI/CD, and site reliability engineering. Report to the Cloud DevOps Manager. About Cision Cision values curiosity, collaboration, and innovation. Team members are encouraged to bring their ideas forward and contribute to the success of the brands we support. Personal growth and shared achievements go hand in hand here. Location Remote within Bulgaria or based in Sofia.

For over two decades, Smartsheet has been a pioneer in enabling individuals and teams to realize their potential—whatever that may be. Our solutions range from streamlined work management to intelligent, scalable tools designed to automate tedious tasks, derive meaningful insights, and promote smarter scaling. More than just providing tools, we are creating an environment where innovation thrives, empowering everyone to think ambitiously, take meaningful actions, and pursue impactful work. When challenges align with purpose and enthusiasm leads to progress, that’s where the real magic happens, and it’s the essence of our daily mission.As a global frontrunner in Collaborative Work Management with a market valuation of $10 billion, we've witnessed remarkable growth in the EMEA region, expanding from a single team of three engineers in 2018 to over 80 engineers by 2026. As we continue to grow our presence in Bulgaria, we are on the lookout for a dynamic and skilled Engineering Manager. Our success hinges on attracting top-tier talent and empowering them to enhance our service offerings.

Exciting OpportunityJoin AJW Group as a Powerplant Engineer, where you will leverage your technical expertise in aircraft engines and APUs to support our global aviation operations. Your focus will be on engine condition assessments, maintenance planning, and strategic repair decisions to ensure optimal performance, cost-effectiveness, and lifecycle value. As a pivotal part of AJW’s supply chain and MRO network, you will collaborate with airlines, lessors, and partners worldwide, directly contributing to our mission of enhancing aviation efficiency.Key ResponsibilitiesDeliver technical support for engines and APUs during repair, overhaul, and maintenance activities.Evaluate engine conditions, performance trends, and maintenance needs.Assist in developing repair and shop visit strategies, including cost evaluations.Review and analyze technical documentation such as engine reports and maintenance records.Collaborate with MROs, OEMs, and suppliers to manage engine performance and maintenance.Support commercial decisions related to engine trading, leasing, and PBH contracts.Analyze data on reliability and performance to identify risks and optimization opportunities.Work closely with internal teams (technical, procurement, trading) to facilitate informed decision-making.Ensure adherence to regulatory and technical standards.

Join Kostal Group as a Production Quality Engineer, where you will play a pivotal role in maintaining and enhancing product quality standards. You will collaborate with cross-functional teams to ensure that our products meet the highest quality benchmarks. This is an excellent opportunity for recent graduates or those new to the field to launch their career in quality engineering.

We are seeking a highly skilled Lead Cloud Platform Engineer to join our dynamic team at think-it. In this role, you will be responsible for designing, implementing, and managing cloud infrastructure that supports our innovative solutions. You will lead a team of engineers, ensuring best practices in cloud architecture and deployment strategies.

Role Overview Playtech is hiring a Head of Engineering for its Bingo division in Sofia. This leader will guide a team of engineers focused on building and improving gaming products. The position shapes technical strategy, manages product development, and oversees the delivery of reliable, high-quality solutions for Bingo games. What You Will Do Set and steer the technical direction for the Bingo engineering team Oversee the full product development lifecycle, from planning to launch Ensure that all gaming solutions meet Playtech’s quality standards Work closely with cross-functional groups to align engineering efforts with business needs Promote a culture of continuous improvement and innovation within the team Who We’re Looking For Experienced engineering leader with a track record in technical strategy and product delivery Strong collaborator who can connect engineering with business objectives Committed to enhancing user experience and team growth

About Man GroupMan Group is a leading global alternative investment management firm dedicated to generating superior performance for our sophisticated clients through our Systematic, Discretionary, and Solutions offerings. Driven by a combination of exceptional talent and cutting-edge technology, our diverse investment strategies are based on thorough research and encompass both public and private markets across all major asset classes, with a notable emphasis on alternatives. We pride ourselves on our partnership approach, fostering deep relationships with clients to create tailored solutions that align with their investment objectives and those of the millions of savers and retirees they represent.Headquartered in London, we manage assets worth $227.6 billion* and operate across multiple global offices. 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 more information, please visit www.man.com.* As of 31 December 2025The TeamThis is an exceptional opportunity to join one of the largest alternative asset managers. Technology plays a crucial role in Man's business strategy, and we continuously evolve to remain at the forefront of the industry. Our culture embraces innovation and change, with engineering being fundamental to our operational framework.We are seeking a talented C# Engineer to join our Risk Engineering team. You will collaborate with Investment Risk Managers and fellow Engineers to develop solutions that enhance daily risk analysis and drive the ongoing improvement of the Man Risk Platform. Your enthusiasm for utilizing AI development tools to expedite delivery and promote their use within the team will be highly valued.This is a fantastic opportunity to work alongside highly skilled engineers, and to deepen your understanding of investment risk and data engineering. New hires will have the chance to engage with the latest technologies as we tackle the challenges ahead.

Join CyberArk, a leader in cybersecurity, as a Staff DevOps Engineer. In this pivotal role, you will collaborate with cross-functional teams to enhance our DevOps practices, streamline CI/CD pipelines, and foster a culture of automation and efficiency. Your expertise will help drive innovation and ensure the reliability of our systems.

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.

Role overview LivePerson is looking for a NOC Engineer II to join the team in Sofia. This position centers on supporting network operations and ensuring that communication platforms remain reliable. The NOC Engineer II works closely with other engineering teams to monitor systems, respond to incidents, and help maintain a stable network environment. What you will do Monitor network operations and track system performance Troubleshoot technical issues as they occur Work with engineering teams to resolve incidents Contribute to ongoing efforts to strengthen network stability and performance Location This role is based onsite at the LivePerson office in Sofia.

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.

TINQIN has been a pioneer in delivering cutting-edge software solutions for the insurance sector for over a decade, earning the trust of numerous long-term clients and partners.As a proud member of the Be Ys Group, TINQIN has broadened its expertise into the realm of digital trust and identity technologies. This rapidly expanding product line has now evolved into a dedicated entity known as KIPMI Software. We are actively seeking a Java Principal Engineer to join our innovative team dedicated to developing next-generation digital trust products.Be part of our mission to shape the future of technology!

Role overview The Solution Sales Engineer at Printec in Sofia blends technical understanding with client-facing sales work. This position focuses on helping organizations identify and implement technology solutions that match their business needs. Success in this role depends on the ability to grasp complex technologies and explain them clearly to a range of audiences, from IT professionals to business stakeholders. What you will do Collaborate with clients to understand their requirements and suggest appropriate solutions. Support the sales process by applying technical knowledge and responding to client inquiries. Present technical information in a clear, accessible way to help clients make decisions. Build trust with customers and contribute to sales growth by ensuring satisfaction throughout the engagement. Location This role is based in Sofia, Bulgaria.

Experian is looking for a Junior Data Engineer to join the data engineering team in Sofia. This position supports the design and construction of data pipelines, helping to maintain smooth and reliable data flow across multiple platforms. Role overview As a Junior Data Engineer, daily work involves collaborating with data scientists and analysts. The goal is to understand their requirements and contribute to solutions that support informed, data-driven decisions. What you will do Assist in building and maintaining data pipelines Help ensure data is accessible and flows efficiently between systems Work closely with team members to support analytics and reporting needs Collaboration This role provides the opportunity to learn from experienced engineers and partner with analytics professionals to deliver practical data solutions.