Principal Cryptography & Protocol Engineer

Location: Remote (Czech Republic) Reports to: Head of Engineering Compensation: $190K–$230K base salary plus equity About Zcash Open Development Lab (ZODL) ZODL builds core software to support the growth and usability of Zcash. The team includes the original inventors and developers of the Zcash protocol. Their mission: make ZEC accessible to billions, with …

Role Overview AFRY is hiring a Junior Road Design Engineer for the Civil Engineering Department in Prague. This position suits recent graduates or those starting out in road design and civil engineering. The role centers on supporting the design and development of road infrastructure projects that improve connectivity and community access. What You Will Do Assist experienced engineers with road design tasks and project development Use modern design software to create and refine project plans Contribute ideas and solutions that align with current industry standards and regulations Collaborate within a team to deliver practical, effective infrastructure designs Work Environment AFRY values growth and supports junior engineers with mentorship and opportunities to build skills. The team fosters a collaborative atmosphere where learning and professional development are encouraged.

About UsAt duvo, we recognize the challenges faced by enterprise teams who still find themselves transferring data between systems, caught in a web of emails, outdated interfaces, and cumbersome handoffs. This disorganization can prove to be costly, slow, and fraught with risk.Our mission is to eliminate these inefficiencies once and for all. With robust traction and a commitment to solving genuine problems for our customers, we are on the lookout for outstanding talent to join our team. We believe in humility, hard work, and letting our results do the talking.Our VisionWe are developing the Agentic Automation Platform for enterprises—an innovative solution where AI agents seamlessly execute end-to-end tasks across various user interfaces and APIs, all while ensuring built-in governance.Where traditional copilots fall short, duvo excels. Business users define their desired outcomes; our agents autonomously plan, execute, request approvals for exceptions, and continuously learn from each operation. We initially target the retail sector, focusing on areas such as category management, supply chain, and finance operations, where the return on investment is clear, before expanding into other functions and industries.Our competitive edge is our speed: we ship rapidly, iterate quickly, and foster cumulative learning.

Why This Role is ExcitingAt Innovatrics, we empower you with the resources, environment, and trust necessary for your success. Our growth-oriented approach illustrates how you can evolve, contribute, and create a significant impact during your tenure with us.Security is a cornerstone of our biometric solutions utilized in elections, border control, digital ID, and secure onboarding across more than 80 countries. We are ISO 27001 certified and are committed to continuously enhancing our security framework.This position emphasizes the critical aspects of our ecosystem: ensuring the security of software development, architecture, and deployment both in SaaS and on-premise installations.You will not be inheriting a large security team; instead, you will have the opportunity to influence how security is integrated into engineering practices.In your initial months, you will delve into...Our biometric products and system architectureDeployment models for SaaS and on-premises (Kubernetes, cloud, CI/CD)Current secure development methodologiesThe implementation of ISO 27001 controls within engineeringYour role will involve identifying vulnerabilities in product and deployment security and outlining a practical roadmap that aligns with our engineering objectives.Once you acclimate to your role, you will contribute by...Defining and evolving our security strategy for solutionsIntegrating secure SDLC practices across engineering teamsIntroducing structured threat modeling and conducting security design reviewsEnhancing the security of Kubernetes, cloud, and CI/CD processesEstablishing a comprehensive vulnerability management and secure release protocolServing as the security authority for software and deployment-related risks, with the authority to halt releases if critical risks are detectedFunctioning as a white-hat hacker to test our injection attack detection systemsYou will collaborate with ITO on ISO 27001 issues, but your primary responsibility will focus on security within software engineering and deployments.Within your first year, you will have the chance to...Develop product security into a measurable engineering disciplineEnhance hardening baselines for both SaaS and on-premises environmentsImplement integrated DevSecOps practices into our CI/CD pipelineIncrease the visibility of product security risks to leadershipPrepare the engineering scope for surveillance and recertification auditsPotentially expand a dedicated product security capabilityThis is a high-impact role that will shape how secure software is developed and delivered.What You Will Help BuildAt Innovatrics, we create biometric technologies that are pivotal for elections, border control, digital ID, and secure onboarding in over 80 countries.Your efforts will safeguard sensitive biometric data and essential systems.Your contributions will directly affect how each engineering team designs, constructs, and deploys software.Join us if you are passionate about deeply embedding security into architecture and engineering practices.

Join Continental as an eXplore Engineering Trainee and embark on a journey of innovation and creativity. In this role, you will be part of a dynamic team dedicated to pushing the boundaries of engineering excellence.

Jobgether is looking for a Senior Data Engineer based in Czechia. This position centers on designing, building, and refining data pipelines and databases to strengthen the company’s expanding data infrastructure. Role overview This role involves turning raw data into insights that help guide business decisions. The Senior Data Engineer will have a direct impact on how data is collected, processed, and made available for analysis across the organization. What you will do Create and maintain efficient data pipelines Develop and optimize databases for performance and scalability Support the transformation of raw data into useful information for business teams Requirements Experience in data engineering Ability to design and improve data infrastructure Strong interest in working with data to support business needs

Join our dynamic team at AFRY as a Lead Project Engineer in the Roads Division. In this pivotal role, you will oversee and manage various road engineering projects, ensuring they are completed on time and within budget while meeting all safety and quality standards.

About ShipMonkAt ShipMonk, we are not just a third-party logistics provider; we are a growth partner for merchants. Our advanced technology and a network of proprietary fulfillment centers empower fast-growing e-commerce and direct-to-consumer (DTC) brands to focus on growth while we handle the logistics. With a diverse team of over 2,500 professionals across five countries, we are dedicated to transforming the fulfillment landscape by offering everything from rapid click-to-delivery services to real-time inventory management and customized solutions—all with a merchant-first approach.Why Choose ShipMonk?We are committed to long-term success, driven by five core differentiators that establish us as true partners for our merchants:Global Fulfillment Network: Our 12+ owned and operated fulfillment centers span the US, Canada, Mexico, the UK, and Mainland Europe, ensuring quality and consistency without outsourcing.Proprietary Technology: Our AI-driven platform eliminates the need for tribal knowledge, providing a real-time, unified overview of inventory and orders, thus empowering our merchants with the control and visibility they need to thrive.Unmatched Support: We offer personalized, hands-on support with a global reach, with dedicated teams stationed at every fulfillment center, ready to assist whenever needed.Transparent Pricing: We uphold honest, long-term partnerships through all-inclusive pricing that ensures predictable costs without hidden fees or surprises.Future-Focused: We invest over $10 million annually in research and development to ensure our technology and services continuously evolve, making us a reliable partner for merchants looking to establish a lasting presence.

Oddin.gg stands at the forefront of esports data science, recognized by Deloitte as the fastest-growing tech company in Central Europe for 2024. We provide innovative solutions for esports betting, specializing in popular titles such as Dota2 and League of Legends, as well as major simulators like FIFA. Our unique partnerships enable us to develop advanced mathematical models for predicting match odds, culminating in our award-winning BetBuilder product that transforms the esports betting landscape.With a dynamic team of over 200 professionals located in the Czech Republic and throughout Europe and Asia, Oddin.gg is rapidly expanding. Now, we invite you to be part of our journey! Your RoleContribute to AWS Architecture: Collaborate in designing and optimizing our AWS infrastructure (EC2, ECS, Kafka, RDS, Redis) to ensure scalability, reliability, and cost-effectiveness.Implement Infrastructure Automation: Utilize tools like Terraform or CloudFormation to automate deployments and maintain consistency across environments.Optimize Performance & Cost: Help configure systems to manage traffic spikes while optimizing resource use and budget. Provide insights on capacity planning and cost-efficiency strategies.Support Developer Experience: Establish and maintain effective CI/CD pipelines. Work closely with software engineers to streamline deployment processes and enhance productivity.Troubleshoot & Improve Systems: Identify and resolve issues to improve uptime, performance, and maintainability of systems.Knowledge Sharing & Collaboration: Collaborate with peers to share knowledge, document best practices, and continuously enhance team processes and technical standards.Your ProfileAWS Proficiency: Strong hands-on experience with core AWS services (EC2, ECS, RDS, ElastiCache/Redis, Kafka) and familiarity with designing and operating production-scale workloads.IaaC & Automation: Proficient in Terraform, CloudFormation, or similar frameworks, with experience in automating tasks for reliable deployments.CI/CD Fundamentals: Understanding of CI/CD practices (e.g., Jenkins, GitHub Actions) to support efficient build, test, and deployment cycles.High-Performance Systems: Exposure to distributed system concepts including load balancing, caching, and more.

Who We AreAt duvo, we are committed to revolutionizing enterprise workflows. Our mission is to eliminate the chaos that arises from data duplication across systems, which often leads to costly delays and risks. Our fast-paced team is dedicated to solving real-world challenges for our customers, and we are on the lookout for exceptional talent to join us in this journey. We believe in staying grounded, executing diligently, and letting our results speak for themselves.What We Are BuildingWe are developing the Agentic Automation Platform for enterprises, a cutting-edge solution where AI agents perform work seamlessly across various user interfaces and APIs while ensuring governance. Our platform empowers business users to define outcomes, allowing agents to strategize, execute, seek approvals for exceptions, and continuously learn from each task. Initially targeting retail functions such as category management and supply chain, we aim to demonstrate clear ROI and expand into adjacent sectors.Speed is our advantage: we prioritize rapid shipping, continuous iteration, and cumulative learning to maintain our competitive edge.What We Are Looking ForInstinct for Scalable, Distributed Systems: You have experience in designing and operating scalable systems.Engineers who possess a strong focus on security and reliability.High Ownership & Agency: You take initiative and are capable of unblocking your own progress.Collaborative Team Players: You work well with others and have a mindset focused on growth.Adaptable Engineers: You are eager to learn about our technology stack and beyond.Creative Problem Solvers: You thrive on tackling new technical challenges and take the lead in finding solutions.You Might AlsoBe a product-oriented builder who places great importance on customer outcomes and value.Have expertise in Large Language Models (LLM) and their effective use in production settings.Possess strong UI/UX sensibilities and attention to detail.Be a full-stack generalist who enjoys tackling new challenges in ambiguous situations.

At Bloomreach, we are at the forefront of creating the world’s leading agentic platform for personalization. We are transforming the way businesses engage with their customers by developing and deploying AI agents that enhance the entire customer journey.Our goal is to make autonomous search mainstream, making product discovery more intuitive and conversational for customers, while driving profitability for businesses.We are bringing conversational shopping to life, connecting every shopper with personalized guidance and product expertise — available on demand at each stage of their journey.We are redefining the future of autonomous marketing, streamlining workflows and allowing marketers to focus on the creative, strategic, and customer-centric aspects of their roles.All of this is powered by our innovative AI engine — Loomi AI — ensuring that personalization is not only autonomous but also consistent. Businesses across various sectors, from retail to financial services, hospitality to gaming, rely on Bloomreach to foster significant growth and enduring customer loyalty. We empower personalization for over 1,400 global brands, including American Eagle, Sonepar, and Pandora.The Staff Security Engineer will be responsible for overseeing current and target-state data architectures and reporting. This role includes designing, implementing, and monitoring security controls for cloud infrastructure (AWS/GCP); deploying, securing, configuring, and managing SIEM and other security resources; identifying, triaging, and remedying infrastructure and web vulnerabilities; leading incident response efforts; engaging with external researchers; and mentoring junior team members.This position offers the flexibility to work from one of our Central Europe offices (Bratislava, Brno, Prague) or from home in Central and Eastern Europe.

Join us at the forefront of technology, where we are revolutionizing the data storage landscape. Lead with creativity, evolve with us, and become part of the brightest minds in the industry.Our mission is rooted in work that transforms the world, staying true to the values that founded the tech industry. If you're eager to embrace limitless possibilities and leave your mark, we invite you to join our team.THE ROLEAs a Data / AI Engineer, you will design a high-performance data ecosystem that converts raw data into actionable intelligence and advanced AI solutions. Collaborating with Data Scientists and Product Managers, you will establish the infrastructure necessary to scale our AI capabilities, setting the stage for the future of automated customer support and operational excellence.WHAT YOU'LL DOArchitect Scalable Data Infrastructure: Design, deploy, and enhance ETL pipelines and data models that generate high-quality, AI-ready datasets for global business insights.Drive AI Evolution: Spearhead the technical development of AI-driven workflows, integrating innovative LLM frameworks to automate intricate business operations and improve decision-making.Ensure Data Excellence and Integrity: Oversee the complete data management lifecycle, implementing strong governance, security, and monitoring to uphold a "single source of truth" for key stakeholders.Collaborate and Solve Across Functions: Work alongside cross-functional teams to translate business needs into technical specifications, serving as the vital link that transforms raw data into meaningful organizational impact.Operational Reliability: Manage on-call support during business hours to guarantee smooth operation of ingestion systems, ensuring high availability for our global data users.WHAT YOU BRINGAdvanced Engineering Proficiency: Extensive technical knowledge in SQL, Python, and data modeling, with a successful history of maintaining complex data pipelines and workflow orchestration tools like Airflow or DBT.Modern Data Stack Expertise: Practical experience in managing relational and NoSQL databases (such as Snowflake, PostgreSQL, or MongoDB) within AWS cloud environments.Growth Mindset & AI Curiosity: A strong desire to learn and innovate in the field of AI.

Join us in revolutionizing the data storage industry as we venture into an exhilarating domain of technology. At Pure Storage, your innovative thinking will be at the forefront of our mission, allowing you to grow alongside the brightest minds in the industry.This role is about making a meaningful impact in the tech world, where opportunities abound for those ready to leave their mark. If you're eager to be part of this exciting journey, we invite you to apply! THE ROLEBecome a vital member of our Digital Experience (DX) business unit, where you will shape the future of intelligent, cloud-native fleet management solutions for our clients. Your contributions will simplify operations through the development of scalable SaaS platforms that integrate AI, security, and automation. You will engage in all phases of the application lifecycle, from Pure IAM to Pure1 Manage, working in collaboration with cross-functional teams to convert business needs into robust, production-ready systems.WHAT YOU'LL DOLead the comprehensive design, development, and operation of mission-critical processing services, ensuring a seamless, secure, and compliant data flow between edge devices and the Pure1 cloud platform.Collaborate with Product and Architecture teams to translate complex requirements into scalable, resilient architectural designs that generate significant organizational impact from conception to production.Pioneer continuous innovation by experimenting with emerging technologies, platform ecosystems, and architectural patterns to enhance system performance, security, and cost-effectiveness for large volumes of real-time data.Uphold a quality-driven approach throughout the software development lifecycle, focusing on rigorous unit testing, comprehensive code reviews, and robust Continuous Integration/Continuous Deployment (CI/CD) pipelines.Facilitate the resolution of intricate interoperability issues between new and existing system components, ensuring the platform remains highly available and accessible to customers globally.WHAT YOU BRINGProven experience in architecting, implementing, and testing various product components within complex, large-scale distributed systems.Expertise in modern backend programming languages (e.g., Go, Python, Java) to drive innovative solutions.

Join Filevine, a pioneering company in Legal AI, as we revolutionize the future of legal work with our innovative Legal Operating Intelligence platform. Our unique system consolidates data, documents, workflows, and teams into a cohesive environment, ensuring clarity and consistency in modern legal operations.With the power of LOIS, our Legal Operating Intelligence System, we redefine legal operations, shifting from reactive to proactive approaches. LOIS intelligently analyzes and interprets data to provide insights, automate complexities, and empower legal professionals with the clarity and confidence they need to maximize their potential. Thanks to our team of brilliant innovators and collaborators, Filevine has garnered numerous accolades, including recognition from Deloitte and Inc. as one of the fastest-growing and most innovative tech companies in the country.Role Overview:As a Senior Platform Engineer, you will be instrumental in constructing and enhancing the foundational architecture of Filevine’s engineering ecosystem. Your responsibilities will include designing robust infrastructure, ensuring system reliability, and implementing automation processes to keep our platform swift, stable, and primed for growth. You will collaborate closely with Machine Learning teams to manage cutting-edge ML/AI pipelines, fortify our MLOps framework, and propel our platform's advancement forward.This position transcends traditional “DevOps tasks”; it focuses on architecting systems, minimizing unnecessary workload, and creating an environment where every engineer can deliver exceptional software with ease and security.

About Us: 2K, established in 2005 and headquartered in Novato, California, is a prominent label under Take-Two Interactive Software, Inc. (NASDAQ: TTWO). As a leading global video game publisher, we are dedicated to delivering exceptional gaming experiences through our diverse portfolio, which includes critically acclaimed titles from renowned studios such as Visual Concepts, Firaxis, and Hangar 13. Our games span various genres including sports, action, and role-playing, captivating millions of players worldwide. We take pride in fostering an inclusive workplace, encouraging our teams to express their authentic selves and perform at their best. We invite all candidates to explore our global opportunities, even if they don't meet every criteria listed. As an equal opportunity employer, we are committed to providing reasonable accommodations for individuals with disabilities throughout the application and interview process. Please let us know if you require assistance. About the Team: Network Operations The 2K Network Operations team is at the forefront of deploying, managing, and troubleshooting our production and enterprise networks, ensuring robust support for our studios and online gaming experiences. Collaborating closely with various infrastructure and development teams, we strive to create seamless network solutions. Your Role: We are seeking a Senior Network Engineer to play a pivotal role in implementing and maintaining 2K’s gaming networks, ranging from the Internet edge and core security layers to user connections. Your expertise will be crucial in ensuring our networks are scalable and agile, providing hundreds of thousands of fans with a stable and reliable gaming platform.

Join our innovative team at Speechify as a Platform Software Engineer. In this role, you'll be at the forefront of developing cutting-edge software solutions that enhance our platform's capabilities. You will collaborate with cross-functional teams to design, implement, and optimize our software architecture.We are looking for someone who is passionate about technology and eager to solve complex problems. If you thrive in a fast-paced environment and have a desire to make a significant impact, we would love to hear from you!

Join Wabtec Corporation as a Line Test Engineer, where you will play a pivotal role in ensuring the quality and reliability of our cutting-edge technology. You will be responsible for conducting tests on various components and systems, analyzing results, and implementing solutions to enhance performance.

Join Applus+ IDIADA as a Konstrukteur, where you will play a pivotal role in the design and development of automotive systems. We are looking for creative and skilled engineers to contribute to exciting projects that drive innovation in the automotive industry.

Location: Fully remote (Czech Republic) Reports to: Head of Engineering Compensation: $190K–$230K base plus equity About ZODL Zcash Open Development Lab (ZODL) builds the software infrastructure that supports Zcash at global scale. Founded by the original Zcash protocol architects and developers, ZODL focuses on user experience for ZEC through ongoing protocol innovation. Current products include Zodl mobile (iOS and Android) with integrated cross-chain swaps, and Zallet, a Rust-based full-node Zcash wallet intended to replace zcashd. The roadmap features Zodl Vault (a desktop wallet for multisig, inheritance, and institutional needs), web wallets, and headless or agentic wallet infrastructure. Role Overview This Principal Engineer role centers on developing and maintaining ZODL’s core infrastructure and wallet systems, with a strong emphasis on secure, reliable software. The position works closely with protocol and cryptography experts, though deep cryptography expertise is not required. Instead, careful implementation of sensitive systems and a solid grasp of underlying concepts are essential. Key Responsibilities Develop and maintain Zallet (the CLI wallet) and Rust-based core libraries for Zcash Implement features following established protocols and guidelines Create and update documentation and specifications to support security analysis, collaborating with external developers as needed Build wallet infrastructure and related features Improve performance, reliability, and developer experience of core systems Support downstream teams, such as Zodl mobile, with feature development and troubleshooting Participate in code reviews, testing, and release processes Respond promptly to bugs and security incidents Team Structure This position reports to the Head of Engineering. The engineering team covers both core and Zodl wallet development; this role will focus primarily on core systems while collaborating closely with wallet developers.

Join us in our exhilarating journey to revolutionize the data storage industry with cutting-edge technology. As a part of our team, you'll engage in innovative projects that redefine the tech landscape, working alongside some of the brightest minds in the field.If you are eager to embrace limitless possibilities and make a significant impact, we invite you to become a key player in our mission.THE ROLEAs a Senior Applied AI Engineer, you will design and maintain production-grade AI systems capable of deriving insights from extensive unstructured document collections. Your work will facilitate enterprise data discovery, classification, and governance.You will take ownership of the entire lifecycle of graph intelligence solutions—from problem definition and data modeling to the development and enhancement of knowledge graphs, culminating in the deployment of ML and LLM-powered analytics in production environments. Your focus will be on semantic and contextual analysis of unstructured data to reveal relationships, patterns, and insights that uphold AI safety, security, and compliance standards.WHAT YOU'LL DODesign, construct, and implement graph-based AI solutions, integrating knowledge graphs, LLMs, and ML models tailored for extensive unstructured datasets.Define and manage data pipelines that transform and enrich entity relationships into production-quality knowledge graphs.Incorporate LLMs and ML models into text processing workflows for tasks such as classification, embedding generation, document similarity, and semantic analysis.Architect, deploy, and maintain graph and vector databases to facilitate retrieval, reasoning, and analytics.Enhance models and inference pipelines to meet production constraints including latency, throughput, cost, and infrastructure requirements.Deploy, supervise, and refine ML systems in live environments, ensuring reliability and continuous integration.Lead architectural decisions and set the technical direction for applied AI and graph intelligence solutions.Note: Our work primarily takes place in an office environment, and you will be expected to work from the Prague office in accordance with company policies, except during PTO, business travel, or other approved leaves.