Senior Fullstack Engineer

Founded in 2018, Causaly is revolutionizing enterprise-scale scientific research with its advanced AI platform, enhancing human productivity. Our innovative technology empowers researchers to discover, visualize, and interpret biomedical knowledge while automating essential research workflows, driving progress against significant global health challenges.We collaborate with some of the largest biopharmaceutical companies and institutions worldwide, addressing diverse use cases in Drug Discovery, Safety, and Competitive Intelligence. To learn more about how we facilitate knowledge acquisition and enhance decision-making, explore our informative blog posts here: Blog - CausalyOur company is backed by leading venture capital firms, including ICONIQ, Index Ventures, Pentech, and Marathon.

About Kpler Kpler helps companies navigate complex markets by simplifying access to global trade data and delivering actionable insights. Since 2014, our team, now over 700 specialists from more than 35 countries, has focused on transforming intricate data into effective strategies for clients in the commodities, energy, and maritime sectors. Role Overview The Senior Fullstack Engineer (Flutter/Node.js) joins the Mobile Experience team within Kpler’s Application Platform tribe in Athens. This role centers on building high-performance features for the MarineTraffic and Kpler mobile apps, which serve millions of users. Work is primarily in Flutter and Dart, with a strong focus on performance and Clean Architecture. This position sits at the intersection of engineering and AI: all deployed code is generated by AI, guided by your expertise. The team embraces advanced AI tools to deliver software with high quality and speed. What You Will Do Develop and improve essential mobile features using Flutter and Dart for large-scale applications. Work closely with an agile, multidisciplinary team: Engineering Manager, Tech Lead, Mid-level Engineer, Product Manager, and Designer. Guide AI-assisted software delivery, ensuring code quality and maintainability. Contribute to the Node.js/TypeScript Backend-for-Frontend (BFF) that supports mobile experiences. Support business teams in managing their functional areas independently, advancing the platformization strategy. Who You’ll Work With Engineering Manager Tech Lead Mid-level Engineer Product Manager Designer Location Athens

At Skroutz, our mission is clear: we aim to astonish. Since our inception in 2005, we have believed that satisfied customers lead to satisfied merchants. It is our responsibility to understand and anticipate their needs, delivering an exceptional, hassle-free experience.Our vision is focused: we strive to streamline shopping, creating a reliable platform where millions can effortlessly discover and meet their online shopping desires, safely.Whether you're in search of the latest smartphone, replenishing your pantry, finding the ideal attire for a special occasion, or hunting for that elusive gaming console, Skroutz stands as your dependable ally for seamless shopping experiences.Our ambitions transcend national borders. We are on track to become one of Europe’s most rapidly expanding marketplaces, with thrilling growth initiatives already underway in Cyprus and the Balkans. Our unwavering dedication to customer satisfaction remains our guiding principle in every decision.To realize our vision, we are on the lookout for individuals who share our enthusiasm for e-commerce and technology. If you possess a drive to create extraordinary shopping moments for our users and assist sellers globally in expanding their businesses, we invite you to join our team.Become a part of Skroutz and embark on a journey that is transforming the landscape of online shopping. Together, let’s turn ordinary moments into extraordinary experiences.Are you ready for the challenge?#AimToAmazeOur Engineering ValuesMaster your technology. Develop your skills, refine your tools, and take pride in your work.Release early & iterate. Create prototypes and gather critical feedback promptly. Use that feedback as a guide. Embrace compromise, but always return to refine your work.Be a team player. Offer assistance, listen actively, and seek to understand. Take initiative when necessary.Avoid over-complication. Don’t over-engineer, over-analyze, or over-regulate your work.Find joy in your work. Celebrate your successes.Technologies We UtilizeOur primary stack consists of Ruby for backend development, utilizing the Ruby on Rails framework, along with JavaScript (ES6) and React/Redux for frontend development. We operate on a MariaDB cluster, and extensively employ Elasticsearch, Kafka, MongoDB, Redis, and Memcached. Jenkins is used for our CI processes, supplemented by tools like Sentry, DataDog, and Grafana for monitoring. We prioritize selecting the most effective tools available to meet our requirements. Explore more about our projects on our Engineering blog.

Our Core Values: Trust | Respect | Team SpiritOur Key to Success: The exceptional individuals on our team, whose integrity and skills set us apart!We are on the lookout for an experienced Senior DevOps Engineer to join our innovative team. The ideal candidate will possess extensive hands-on experience with cloud technologies, automation, containerization, and application development. You will be instrumental in designing, deploying, and sustaining scalable solutions while collaborating with cross-functional teams.Position Overview:Your daily responsibilities will encompass:Designing, implementing, and maintaining CI/CD pipelines utilizing Azure DevOps / Azure Pipelines and Jenkins.Managing containerized applications with Docker or Podman.Deploying applications in RHEL Linux environments.Developing and maintaining automation scripts using Python.Configuring and sustaining JBoss / WildFly application servers.Building and managing applications based on Spring Boot and Node.js.Overseeing builds and dependencies with Maven.Working with Oracle databases and managing schema updates using Liquibase.Collaborating with development teams to ensure secure, reliable, and efficient deployments.

We are seeking a highly skilled Senior DevOps Engineer to join our dynamic team at Netcompany1. In this pivotal role, you will be responsible for implementing and maintaining scalable and efficient infrastructure solutions that support our development and operational processes. You will collaborate closely with software engineers and IT teams to automate processes and improve system reliability.Your expertise in cloud services, containerization, and CI/CD pipelines will be key in driving our projects forward and enhancing our DevOps practices. If you are passionate about technology and thrive in a fast-paced environment, we would love to hear from you!

Join our dynamic team at Netcompany A/S as a Senior System Engineer. In this pivotal role, you will leverage your technical expertise to design, implement, and maintain advanced systems that drive our operations forward. You will work closely with cross-functional teams to ensure the seamless integration of technology solutions that meet business needs.Your contributions will be vital in optimizing system performance and enhancing user experience. If you are passionate about technology and innovation, we invite you to apply and be part of our mission to deliver excellence.

Join the dynamic team at Finartix as a Senior Software Engineer specializing in .NET technologies. We are seeking a motivated and talented Backend Application Developer to contribute to our Software Engineering Practice. You will play an essential role in designing, implementing, and managing innovative technology-driven solutions that enhance our clients’ operational efficiency across various sectors. Key ResponsibilitiesEngage in the complete software development lifecycle including designing, testing, and maintaining bespoke applications.Adhere to established programming standards for naming conventions, security, performance, and ensure comprehensive code documentation.Act as a trusted technical advisor to clients, offering solutions tailored to their needs.Provide ongoing support to both business and IT users for existing applications.

Join our dynamic team at Kiefer Tech, the technological arm of Kiefer, renowned for over 12 years of pioneering work in the Green Energy sector. We are at the forefront of developing innovative AI, robotics, and enterprise solutions across Greece and the EU. Our commitment to crafting sovereign AI infrastructure ensures that data remains within EU borders, prioritizing privacy while delivering measurable business outcomes. Guided by our core principles of innovation, quality, and long-term partnerships, we create enterprise-grade AI frameworks, including Greece’s first authentic Large Language Models and intelligent automation solutions that empower organizations to succeed. Our strategic alliance with NVIDIA enhances our sustainable infrastructure expertise with world-class AI technology, fostering an ecosystem of innovation that bolsters Greece’s technological sovereignty and generates significant impact across various industries. Become a part of our mission to build the AI-powered world of tomorrow.We are on the lookout for a Senior QA Engineer to help establish robust testing methodologies and ensure product reliability in preparation for our enterprise launch.

We are seeking a talented and experienced Database Engineer to join our dynamic team at Netcompany1. In this role, you will be responsible for designing, implementing, and maintaining robust database systems that support our innovative projects and applications. You will have the opportunity to work with cutting-edge technologies and collaborate with cross-functional teams to deliver high-quality solutions.

GEK Terna is looking for a Senior Construction Civil Engineer based in Athens, Attica. This position involves leading major construction projects from planning through completion, with a strong focus on meeting deadlines, budget targets, and strict quality and safety standards. Role overview The Senior Construction Civil Engineer will take charge of large-scale project execution. Responsibilities include supervising construction activities, coordinating with internal teams and external partners, and ensuring all work aligns with project requirements. Collaboration and impact This role works closely with project teams, clients, and stakeholders to meet project goals. The position calls for applying advanced civil engineering knowledge and construction management skills to support project success and encourage improvements in construction methods. Requirements Extensive experience in civil engineering and construction management Proven ability to oversee large construction projects Strong commitment to quality and safety standards Effective collaboration and communication skills

Work Model: Hybrid | Employment Type: Full-timeAt Accepted, we specialize in software and digital transformation services that empower clients to drive innovation across various sectors such as Finance, Energy, Gaming, Telco, and more. With over 20 years of engineering excellence, we pride ourselves on delivering outcome-focused solutions and cultivating high-performance teams that integrate seamlessly with your operations.We are on the lookout for an experienced Senior Machine Learning Engineer to enhance our hybrid delivery teams.Key ResponsibilitiesDesign, implement, and deploy machine learning solutions tailored for document-intensive environments, emphasizing automation and intelligent document processing;Develop and refine NLP and LLM-based applications for document comprehension, including classification, entity recognition, and semantic search;Construct and oversee comprehensive ML pipelines, covering data preprocessing, training, evaluation, deployment, and monitoring;Work on document ingestion and processing workflows involving PDFs, scanned documents, and unstructured data, facilitating metadata extraction and indexing;Implement and enhance RAG pipelines and LLM integrations for enterprise knowledge management systems;Collaborate closely with product, engineering, and business teams to convert document management and operational requirements into scalable ML solutions;Contribute to the design and ongoing development of internal AI platforms and automation workflows;Ensure the performance, scalability, and reliability of ML systems within production environments;Support experimentation, model optimization, and the continuous enhancement of ML solutions.

Athena Cloud Limited is actively seeking an experienced Senior Engineer specializing in Zabbix, GLPI, and Wazuh to join our innovative team. As a leading provider of Sovereign Cloud, Sovereign AI, and Sovereign Data solutions, we are dedicated to offering outstanding services that ensure the security and effective management of our clients' digital assets. In this crucial position, you will take charge of deploying, configuring, and maintaining our monitoring, asset management, and security information and event management (SIEM) systems using Zabbix, GLPI, and Wazuh.Your proficiency in these robust tools will be vital for optimizing system performance and enhancing our security posture, while also facilitating an integrated workflow across monitoring, asset management, and incident response systems. You will collaborate with cross-functional teams to spearhead initiatives that maximize system uptime and responsiveness, providing essential insights that enhance our operational effectiveness.In your role as the Senior Engineer for Zabbix, GLPI, and Wazuh, you will also mentor junior engineers, guiding their development in managing these critical systems. If you possess a solid background in systems engineering combined with a passion for security and performance optimization, this role offers a unique opportunity to significantly impact our mission.

At Sunlight Group, we are at the forefront of revolutionizing energy storage solutions tailored for industrial and advanced technology needs. Our commitment is driven by a profound passion for performance and an unwavering pursuit of continuous improvement. We maintain a conscientious approach to our environmental footprint, fostering a culture grounded in openness and respect across all interactions. With a robust customer focus, we harness data and insights to craft innovative solutions that empower our clients and enrich our collective ecosystem. Embracing an entrepreneurial spirit, we cultivate a dynamic and collaborative environment, inspiring our team through transparent communication, ongoing learning, and opportunities to realize their full potential.Our Vision: Transforming Energy Storage Solutions To Power A Sustainable Tomorrow.Our Mission: We deliver cutting-edge, high-quality energy storage solutions for industrial and advanced technology applications, steering us toward an all-electric future.We are actively seeking a Senior Systems & Cloud Engineer with extensive expertise in Microsoft technologies and Microsoft Azure to spearhead cloud migration and transformation initiatives. This role demands hands-on technical leadership, the ability to mentor engineering teams, and profound knowledge of security and networking. The selected engineer will be instrumental in designing, implementing, and securing modern cloud and hybrid environments while collaborating closely with internal customers and stakeholders.

Optasia is a cutting-edge B2B2X financial technology platform specializing in scoring, financial decision-making, disbursement, and collection. Our mission is to promote financial inclusion for everyone. We are transforming the financial landscape in our unique way.We are on the lookout for passionate professionals who are energetic, results-oriented, and possess a can-do attitude. Join our dynamic team of innovators dedicated to delivering top-notch solutions in an exhilarating environment.As a vital member of the Systems Engineering team at Optasia, you will oversee the efficient provisioning, installation/configuration, operation, and maintenance of our systems hardware and software, along with associated infrastructure. Your contributions will include participating in technical research and development to foster ongoing innovation within our infrastructure. You will ensure compliance with organizational values by upholding high standards in system hardware, operating systems, software systems, and related procedures, thereby empowering staff, volunteers, and partners.

Join our dynamic team as a Senior Engineering Manager in the Fintech domain at efood, where you will be pivotal in developing a robust, scalable, and adaptive platform that underpins customer payments and internal financial operations.This is a high-impact leadership position within a critical business sector, overseeing the complete lifecycle of efood's payment and financial transaction processes. Your responsibilities will span from customer order payments through downstream operations, inclusive of refunds, cancellations, fraud checks, vendor payouts, reporting, and regulatory compliance. Your engineering expertise, leadership acumen, and ability to navigate a complex stakeholder landscape will be essential.You will collaborate closely with Product Managers, Finance stakeholders, Engineering leaders, C-level executives, and Delivery Hero teams to enhance operational efficiency, elevate technical standards, and support the growth of the domain as our business expands. Technical EnvironmentOur architecture employs microservices, with over 80 services managing high volumes of requests through both synchronous and event-driven communication.Our technology stack includes Golang, REST APIs, gRPC, Kubernetes, AWS, GCP, PostgreSQL, MongoDB, Redis, and messaging platforms like SNS, SQS, Kafka, and cloud messaging services.As part of the Delivery Hero group, we maintain close collaboration with their Global Services teams. Your Responsibilities:Lead the Fintech engineering domain, managing a hybrid team structure that includes an Engineering Manager and senior engineers, adapting the team layout as priorities evolve.Collaborate with Product Managers to drive the delivery of innovative payment capabilities and domain enhancements, while providing valuable technical insights, tradeoffs, and prioritization guidance.Engage with Finance stakeholders to optimize finance flows, minimize discrepancies, enhance automation, and clarify cross-team issues and dependencies.Provide technical leadership by guiding architectural and design decisions, mentoring engineers and managers, and raising the standard for engineering quality, ownership, and systems thinking.Ensure execution across multiple services and teams, managing dependencies with Delivery Hero services by maintaining clear priorities, surfacing risks early, and tracking progress, challenges, and outcomes.Assist the team in balancing feature delivery, system reliability, and technical enhancements, with hands-on involvement as needed to remove obstacles or support critical choices.Mentor and support the development of engineers and managers to foster their growth.

Established in 2018, Causaly is revolutionizing the realm of enterprise-level scientific research with our innovative AI platform. Our technology empowers researchers to efficiently discover, visualize, and interpret vital biomedical knowledge while automating essential research workflows, thus accelerating the solutions to some of the most pressing health challenges of our time.We partner with leading biopharma companies and institutions, addressing diverse use cases in Drug Discovery, Safety, and Competitive Intelligence. For more insights on how we enhance knowledge acquisition and decision-making, explore our blog posts here: Blog - CausalySupported by prestigious venture capital firms including ICONIQ, Index Ventures, Pentech, and Marathon, we are on a mission to transform research outcomes in the biomedical field.About the TeamWe are seeking skilled AI engineers to join our dynamic team, utilizing generative AI and intelligent agents to help scientists uncover novel insights from extensive biomedical literature and datasets.Delivering an accelerated research experience demands more than merely adopting the latest LLM model; it requires building trust with our users through integrating effective guardrails, biomedical curation, consistent updates, and robust deployment practices—ensuring our platform meets all the research needs of our users.We invite AI engineers who are passionate about this mission to apply AI in reshaping how biomedical professionals conduct their research and daily explorations.Your Responsibilities· Design and implement comprehensive ML/AI solutions from conception through deployment and monitoring, balancing innovative techniques with practical considerations to achieve measurable outcomes.· Employ sound software engineering practices, including modular design, testing, code reviews, CI/CD, and observability, to ensure AI systems are dependable, maintainable, and production-ready, while being adaptable to future needs.· Select the optimal approach for each challenge, evaluating traditional ML and NLP techniques, LLM-based solutions, and agentic strategies to weigh trade-offs between speed, cost, complexity, interpretability, and performance.· Collaborate closely with product, design, and engineering teams to define project scopes, establish success metrics, and iteratively enhance user-facing features powered by AI.

Join our dynamic team as a Senior Site Reliability Data Engineer, where you will play a pivotal role in enhancing and optimizing our data systems. Your expertise will drive the reliability and scalability of our platforms, ensuring seamless user experiences and high availability.In this role, you will collaborate closely with cross-functional teams to implement best practices in data reliability and performance. You will be responsible for monitoring, troubleshooting, and enhancing our data pipelines and infrastructure.

Join our innovative team at withplum as a Senior Android Engineer. In this pivotal role, you will lead the design, development, and maintenance of our Android applications, ensuring a seamless user experience while collaborating with cross-functional teams. You will leverage your expertise in Android SDK, Java/Kotlin, and best practices in software development to deliver high-quality mobile solutions.

IKH Group develops software and robotics solutions for clients worldwide. The company has grown its team by over 80% in recent years and is preparing for new projects in 2025, focusing on digital transformation, custom software, and robotics. Blend Technologies, an IKH Group division, delivers technology and innovation services for Industry 4.0. The team works with cloud, cybersecurity, and AI, building solutions for clients adapting to new technologies. Role Overview IKH Group is hiring a Senior Cloud Engineer in Athens, Attica, Greece. This role will join a team working on upcoming projects in cloud infrastructure and digital transformation. The Senior Cloud Engineer will contribute technical expertise to new and ongoing initiatives within the group.

Join the Sunlight Group, a pioneer in energy storage solutions, as we shape the future of energy storage for industrial and advanced technology applications. Our commitment to performance and ongoing enhancement drives us to transform energy storage systems for a sustainable future. We operate with a strong sense of environmental responsibility, fostering a culture of openness and respect. By harnessing data and insights, we create innovative, customer-focused solutions, empowering an all-electric future through state-of-the-art technologies. Our entrepreneurial spirit nurtures an agile and collaborative environment where our team members can thrive, contribute, and realize their full potential.We are currently seeking a Senior Mechanical Design Engineer to elevate our R&D team in the development of Lithium-ion battery systems for industrial applications. In this pivotal role, you will spearhead mechanical design initiatives, mentor junior engineers, and ensure our new battery products achieve the highest standards of performance, manufacturability, and quality.Collaboration will be key as you work closely with electrical engineering, industrialization, quality assurance, and testing teams to deliver robust and innovative battery packs, modules, and mechanical sub-systems.Lead the design process for parts, assemblies, and sub-systems utilizing 3D/2D CAD tools (including injection molded enclosures, sheet metal, and HPDC castings).Define and validate system architecture and packaging concepts for battery packs.Drive product feasibility, mechanical integration, and spatial optimization efforts.Ensure adherence to DFM (Design for Manufacturing) and DFA guidelines.Conduct engineering analyses encompassing stress, strain, structural integrity, and tolerance evaluations.Validate design assumptions and employ data-driven decision-making.Create and review technical documentation, drawings, and design releases.Manage engineering change requests (ECP) and maintain accurate BOM structures (CAD & ERP/SAP).Collaborate with Industrialization for a seamless transition to production.Provide technical input to Quality, Testing, and Product Management teams.Lead DFMEA sessions and contribute to risk mitigation strategies.Support prototype builds, testing campaigns, and root cause analyses.Guide and mentor junior and mid-level mechanical engineers.Review designs, documentation, and analyses produced by the team.