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AI, ML, & Data Engineering

ADVANCE SOFTWARE ENGINEERING

AI, ML, & Data Engineering

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Job title: Python Data/Machine Learning Engineer (Fluent in Dutch) Job type: Perm Salary: 70-80k + Bonuses Role Location: Amsterdam Role and responsibilities: You have an insatiable interest in, a passion for, and over five years of experience with the magical and fastest-growing Python language. If you work in data-driven environments as a Data Engineer, Data Scientist, or Data Analyst, and have an affinity for designing and building Data Pipelines and Machine Learning solutions, then we're looking for you.  Job requirements: Python Python libraries and frameworks such as Pandas, scikit-learn, PySpark, Keras, TensorFlow and Airflow and tools such as Kafka and Docker. Experience in designing and building Data Pipelines. Experience with Machine Learning models in production environments. Experience with Machine Learning models such as Decision Trees / Random Forests, Deep Learning, simulations and optimization algorithms. Experience with Software Testing. Knowledge of methods such as Agile, Scrum and DevOps: CI/CD pipelines. Knowledge of containerization (Docker/Kubernetes). Knowledge of Relational and NoSQL databases. Knowledge of Cloud infrastructure (choice of Azure, AWS, Google, etc.). Fluent in Dutch Accessibility Statement: Read and apply for this role in the way that works for you by using our Recite Me assistive technology tool. Click the circle at the bottom right side of the screen and select your preferences.   We make an active choice to be inclusive towards everyone every day.? Please let us know if you require any accessibility adjustments through the application or interview process. Our Commitment to Diversity, Equity, and Inclusion: Signify’s mission is to empower every person, regardless of their background or?circumstances, with an equitable chance to achieve the careers?they deserve. Building a diverse future, one placement at a?time. Check out our DE&I page here

Position: Senior/Staff Full Stack Engineer (TypeScript / Python) Location: Remote (Must be based in Portugal) About the Role Signify have partnered with a company that are looking for a Senior/Staff Full Stack Engineer to join their distributed engineering team and play a key role in designing and delivering scalable, cloud native SaaS solutions. This position requires deep expertise across modern web application development, with TypeScript powering the frontend and Python driving backend services.   You will contribute to architectural decisions, guide technical standards, and help elevate engineering practices across the team. Key Responsibilities   Design, develop, and maintain robust web applications using TypeScript (frontend) and Python (backend) Lead and contribute to architectural discussions, technical design sessions, and system reviews Translate business requirements into scalable, secure, and maintainable technical solutions Mentor and support junior engineers, fostering strong development standards and best practices Actively engage in Agile ceremonies including daily stand-ups and sprint planning Participate in peer code reviews to ensure code quality, performance, and reliability Contribute to continuous improvement of SDLC processes and deployment workflows Required Experience & Skills 10+ years as a software engineer Hands on experience with both Python and Typescript Strong understanding of system architecture, design patterns, and technical trade offs Experience designing and working with relational databases and data modeling principles Good knowledge of Kuberenetes and AWS Experience working within Agile or Kanban development methodologies Coaching and mentoring experience

Job title: Frontend Developer – Vue.js Job type: Permanent Salary: Up to €55,000 Role Location: Athens, hybrid 3 days a week onsite The company: Rapidly expanding Travel Tech! Role and responsibilities: I'm looking to recruit a Frontend Developer who is passionate about modern web architecture and building scalable, high-performance single-page applications using Vue.js. This is an exciting opportunity to join a company undergoing a frontend modernization journey, moving towards Vue.js 3, TypeScript, and Pinia, and building a reusable frontend capability for future projects. What You’ll Be Doing: Contributing to the frontend modernization strategy using Vue.js 3, TypeScript, and Pinia Building and maintaining scalable single-page applications Developing reusable, maintainable UI components and frontend architecture Integrating with external APIs and services (including Google integrations) Implementing real-time functionality using WebSockets Collaborating closely with backend, product, and data teams Contributing to the creation of a reusable frontend team to support future projects Supporting potential future expansion into mobile (React Native roadmap) Job requirements: Strong commercial experience with Vue.js (ideally Vue 3) Experience with TypeScript in frontend applications Solid understanding of state management (Pinia or Vuex) Experience building and maintaining single-page applications Experience integrating with external APIs and third-party services Understanding of real-time technologies such as WebSockets A passion for clean, scalable frontend architecture A collaborative mindset and interest in modern frontend best practices If interested, apply to be considered! Accessibility Statement: Read and apply for this role in the way that works for you by using our Recite Me assistive technology tool. Click the circle at the bottom right side of the screen and select your preferences. We make an active choice to be inclusive towards everyone every day. Please let us know if you require any accessibility adjustments through the application or interview process. Our Commitment to Diversity, Equity, and Inclusion: Signify’s mission is to empower every person, regardless of their background or circumstances, with an equitable chance to achieve the careers they deserve. Building a diverse future, one placement at a time. Check out our DE&I page here.

Job title: Mobile Infrastructure Architect Job type: Permanent or Contract-to-Hire (6-12 months) Salary/Rate: Dependent on experience Role Location: Warsaw   About the Company The company is a global leader in mobile and web testing solutions, providing tools that help engineering teams deliver high quality digital experiences. They operate a large scale platform that enables automated and real?device testing, performance insights, and secure, reliable infrastructure for enterprise customers.   Role Overview We are looking for a Mobile Architect that will be responsible for leading the design, implementation, and operation of our client's real?device and emulator platform. This role owns the technical vision, driving innovation and ensuring the mobile testing stack remains scalable, secure, and highly available while advising on emerging mobile technologies to meet evolving customer needs.   Responsibilities Provide hands-on leadership, guiding the team in architecting, designing, and documenting scalable system components and integrations. Stay current with the latest Android/iOS releases and emulator/simulator technologies. Direct solution design for manual and automated mobile testing workflows, performance profiling, reporting, and app distribution. Collaborate with operations, networking, and security teams on data centre planning and enforce best practices across on?prem and cloud environments. Partner with product management to translate business requirements into robust technical solutions. Define and promote engineering standards, patterns, and best practices across teams. Communicate architectural decisions clearly to developers, leaders, and stakeholders. Lead development of features that improve internal workflows and enhance customer productivity. Conduct code reviews and provide architectural guidance to engineering teams. Continuously improve system performance, reliability, and scalability. Identify and manage technical dependencies across teams and platforms. Ensure timely project delivery through strong cross?functional alignment.   Required Technical Skills Deep expertise in Android and iOS ecosystems, including real devices and emulators/simulators. Strong proficiency in Kotlin/Java and Swift/Objective?C, plus experience with modern languages (e.g., Python, Go). Strong background in mobile reverse engineering, debugging, and mobile application development. Experience with SaaS platforms, particularly in QA, developer tools, or enterprise environments. Familiarity with CI/CD pipelines and DevOps methodologies. Cloud architecture experience (GCP preferred, AWS also welcome).   Bonus Points: Knowledge of IAM and RBAC in enterprise-scale systems. Experience deploying applications on Kubernetes and virtual machines. Understanding of microservices, event-driven architectures, and API design principles.   Accessibility Statement: Read and apply for this role in the way that works for you by using our Recite Me assistive technology tool. Click the circle at the bottom right side of the screen and select your preferences. We make an active choice to be inclusive towards everyone every day. Please let us know if you require any accessibility adjustments through the application or interview process. Our Commitment to Diversity, Equity, and Inclusion: Signify’s mission is to empower every person, regardless of their background or circumstances, with an equitable chance to achieve the careers they deserve. Building a diverse future, one placement at a time. Check out our DE&I page here

Job title: Site Reliability Engineer Job type: Contract Contract Length: 12 months  Rate: $20 p/h  Role Location: Colombia  The company: Financial Services Role and Responsibilities: Partner with Development teams to support application build and continuous improvement. Expand, optimise, and maintain CI/CD pipelines. Troubleshoot and resolve production issues using APM tools. Work daily with AWS cloud infrastructure. Optimise service performance and cloud costs. Ensure high availability, reliability, and security of systems. Analyse current architecture and propose scalable improvements. Design and implement automated workflows and infrastructure processes. Promote and embed DevOps culture across engineering teams. Job Requirements: University degree in Engineering, Computer Science, or related field. Strong hands-on experience with AWS, including: Cognito Aurora PostgreSQL EKS Lambda S3 API Gateway DynamoDB EC2 DocumentDB SNS OpenSearch Experience with Messaging/Streaming technologies: RabbitMQ SQS Kafka Kinesis Infrastructure as Code expertise: CloudFormation Terraform Strong Kubernetes (K8s) experience: Resource optimisation Provisioning new services Improving existing services K8s architecture design Experience with Windows Server (Active Directory, IIS, Windows Services). CI/CD tooling experience: Jenkins Azure DevOps Scripting/programming skills in: Shell Python Accessibility Statement: Read and apply for this role in the way that works for you by using our Recite Me assistive technology tool. Click the circle at the bottom right side of the screen and select your preferences. We make an active choice to be inclusive towards everyone every day.? Please let us know if you require any accessibility adjustments through the application or interview process. Our Commitment to Diversity, Equity, and Inclusion: Signify’s mission is to empower every person, regardless of their background or?circumstances, with an equitable chance to achieve the careers?they deserve. Building a diverse future, one placement at a?time. Check out our DE&I page here

Job title: Senior Java Developer Job type: Permanent  Salary: Up to €65,000 Role Location: Athens, hybrid 3 days a week onsite  The company: Rapidly expanding Travel Tech! Role and responsibilities: Work on a large-scale greenfield modernisation project to transform the travel and transportation ecosystem, empowering businesses with innovative, scalable, and efficient technology solutions, overseeing three different teams. What You’ll Be Doing: Platform Overhaul: Transitioning legacy systems to modern, microservices-based architectures. Next-Gen Features: Rolling out tools like revenue management systems and web check-in portals. Build new reservation and ticketing systems designed for reliability and scalability.  System Integration connecting the travel ecosystem with robust APIs and microservices. Job requirements: Strong expertise in Java, Spring Boot, and RESTful API design. Experience with microservice architectures, database management (PostgreSQL or similar), and Docker. Knowledge of Agile methodologies and a collaborative mindset. If interested, apply to be considered!  Accessibility Statement: Read and apply for this role in the way that works for you by using our Recite Me assistive technology tool. Click the circle at the bottom right side of the screen and select your preferences. We make an active choice to be inclusive towards everyone every day.? Please let us know if you require any accessibility adjustments through the application or interview process. Our Commitment to Diversity, Equity, and Inclusion: Signify’s mission is to empower every person, regardless of their background or?circumstances, with an equitable chance to achieve the careers?they deserve. Building a diverse future, one placement at a?time. Check out our DE&I page here

Job title: QA Engineer - Playwright Job type: Permanent  Salary: Up to €60,000 Role Location: Athens, hybrid 3 days a week onsite  The company: Rapidly expanding Travel Tech! Role and responsibilities: I'm looking to recruit a QA Engineer who thrives on complexity and loves getting deep into data-intensive systems, with strong Playwright experience.  What You’ll Be Doing: Data-intensive applications processing millions of transactions annually Working closely with engineers and product teams to ensure performance and reliability across complex, data-heavy features Building scalable, robust test automation with Playwright Working closely with engineers, product, and data teams to ensure quality at every step Driving test strategy across APIs, UIs, and backend workflows Job requirements: Proven experience with Playwright and other modern testing tools A passion for clean, reliable, and scalable test architecture Experience working on complex systems—especially data-heavy platforms A mindset for automation, performance, and continuous improvement   If interested, apply to be considered!  Accessibility Statement: Read and apply for this role in the way that works for you by using our Recite Me assistive technology tool. Click the circle at the bottom right side of the screen and select your preferences. We make an active choice to be inclusive towards everyone every day.? Please let us know if you require any accessibility adjustments through the application or interview process. Our Commitment to Diversity, Equity, and Inclusion: Signify’s mission is to empower every person, regardless of their background or circumstances, with an equitable chance to achieve the careers they deserve. Building a diverse future, one placement at a time. Check out our DE&I page here

Job title: Network Operations Engineer Job type: Perm Salary: €90k-€120k Role Location: Dusseldorf or Munich The company: IT Consultancy Role and responsibilities: Technical networking ability to troubleshoot WAN, LAN, Network Security, Cloud Internet Security Platform and Tools  Service restoration, sustainability, and proactive service improvement. Participating and at times leading Major Incident conference calls and can identify required resources. Provide full Root Cause Analysis for any production outages. Patch management Managed Service Provider technical resource and capabilities evaluation Availability tracking and technical elimination of repeat incidents Job requirements: Minimum of 8 years’ experience in IT Operations Technical Engineering positions Expert Knowledge of Carrier Services – SDWAN VeloCloud & WAN Circuits, MPLS, Point to Point Expert Knowledge of networking infrastructure suppliers and service offerings including; Cisco, Aruba & Infoblox Experience working with Enterprise Wireless Network Services (wireless first concept) Experience working with Cloud Internet Security Planform, such as Zscaler Demonstrable understanding of network load balancers and firewalls Experience with monitoring applications such as SolarWinds & Riverbed Experience of working as part of a Global 24*7 support model Professional Technical Certification preferred History of working in both an insource IT model and a blend of Managed Service Delivery would be beneficial Competencies: Dealing with Ambiguity – MUST have B2 or above level of German language skills Strong Communication Skills Technical competencies around Data Routing & Switching Tooling in an enterprise network Accessibility Statement: Read and apply for this role in the way that works for you by using our Recite Me assistive technology tool. Click the circle at the bottom right side of the screen and select your preferences.     We make an active choice to be inclusive towards everyone every day.? Please let us know if you require any accessibility adjustments through the application or interview process.     Our Commitment to Diversity, Equity, and Inclusion: Signify’s mission is to empower every person, regardless of their background or?circumstances, with an equitable chance to achieve the careers?they deserve. Building a diverse future, one placement at a?time.   Check out our DE&I page here    

Job title: Network Architect Job type: Perm Salary: €130k-€160k Role Location: Dusseldorf or Munich The company: IT Consultancy Role and responsibilities: Design solutions in Sites & Campuses, Security Perimeters, and WAN Design and optimize network infrastructure to support company’s operations and projects that are highly available, secure and meet regulatory compliance Design micro-segmentation solutions to meet the security requirements Work within a team or internal and external resources to lead the network deployment in numerous network mergers and acquisition onboarding projects Design solutions in a manner that ensure compliance with regulatory requirements such as DORA, BAFIN and VAIT Work with Technical Project Managers to understand project priorities and help sequence network engineering components accordingly Job requirements: Proven technical proficiency in the fields of LAN, Firewalls, Data Center, WiFi and WAN design, management and standardization Experience working as part of a global team with internal and external members Extensive experience in designing, implementing and troubleshooting LAN solutions in Data Centres as well as in Site LAN/WiFi environments using Aruba switching platforms and Gateways. Experience in designing network security solutions like Fortinet firewalls and zScaler History of working in both an insource IT model with a blend of Managed Service Delivery Competencies: Dealing with ambiguity Strong communication skills – MUST have German language skills to at least B2 Strong Technical competencies around network routing, switching security, and data centre technologies Technical understanding about Firewall technologies, DMZ environments and Wi-Fi Understanding of Mergers & Acquisitions and the technical aspects of integrating an organization Accessibility Statement: Read and apply for this role in the way that works for you by using our Recite Me assistive technology tool. Click the circle at the bottom right side of the screen and select your preferences.     We make an active choice to be inclusive towards everyone every day.? Please let us know if you require any accessibility adjustments through the application or interview process.     Our Commitment to Diversity, Equity, and Inclusion: Signify’s mission is to empower every person, regardless of their background or?circumstances, with an equitable chance to achieve the careers?they deserve. Building a diverse future, one placement at a?time.   Check out our DE&I page here    

Job title: Network Design Engineer Job type: Perm Salary: €100k-€130k Role Location: Dusseldorf or Munich The company: IT Consultancy Role and responsibilities: • Experience in developing network solutions with high availability and resiliency • Experience with Wireless Technologies, Signal optimization, Wireless coverage design • Understanding of network design for optimal performance and availability • Support Office Moves and renewals according to defined standard designs • Assist the Operations teams with root cause analysis and other troubleshooting activities as needed • Aligning with Vendors around service lifecycles and roadmaps • Vendor management for production hardware lifecycle • Managed Service Provider technical resource and capabilities evaluation • Availability tracking and technical elimination of repeat incidents Job requirements: • Proven Technical capability in the field of Aruba Wireless design, management and standardization • Experience of working as part of a Global function • Experience with creating predictive surveys using planning software such as Airwave VisualRF (preferred), Ekahau or AirMagnet • Experience designing, implementing, and troubleshooting high density wireless enterprise office networks. • Strong knowledge with routing protocols and building tiered network design. • Experience with SD WAN (Velo Cloud) and associated transport technologies. • Deep working knowledge of 802.11 protocols, RF propagation, and antenna technologies using multipath, spatial multiplexing, and diversity. Experienced in RF optimization as well as interference and coexistence analysis, and ability to apply this to resolve issues in poor RF environments. • Experience supporting and troubleshooting voice applications over wireless; such as Microsoft Teams. Soft Skills: • Capable of analysing business and technical requirements and design/Implement project based on defined processes. • Demonstrated strong personal mastery, including ethics, interpersonal skills, and engagement in continuous learning. • Able to communicate and present complex issues with assurance and confidence – MUST have at least B2 or above level of German language skills • Ability to drive troubleshooting calls and have good skills in questioning, listening, idea development and influencing. • Ability to work with a team to provide written documentation and skills transfer to the larger technical organization. Accessibility Statement: Read and apply for this role in the way that works for you by using our Recite Me assistive technology tool. Click the circle at the bottom right side of the screen and select your preferences.     We make an active choice to be inclusive towards everyone every day.? Please let us know if you require any accessibility adjustments through the application or interview process.     Our Commitment to Diversity, Equity, and Inclusion: Signify’s mission is to empower every person, regardless of their background or?circumstances, with an equitable chance to achieve the careers?they deserve. Building a diverse future, one placement at a?time.   Check out our DE&I page here