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AI, ML, & Data Engineering

ADVANCE SOFTWARE ENGINEERING

AI, ML, & Data Engineering

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Job Opportunity: Vue.js Developer Role: Build Scalable SPAs for High-Performance Applications Salary: €55,000-€70,000 I'm looking to recruit a Frontend Developer with expertise in Vue.js v3 and TypeScript ready to take on the challenge of building highly complex, scalable applications. Working on a white-label solution that processes thousands of requests per hour and serves diverse global clients. What You’ll Be Working On: Design and develop highly scalable Single Page Applications (SPAs) using Vue.js v3 and TypeScript. Implement and manage state using Pinia, ensuring seamless performance across complex workflows. Contribute to the development of a white-label solution capable of handling high traffic and dynamic scaling needs. Integrate robust APIs, processing thousands of requests per hour efficiently. Optimize application architecture for maintainability, speed, and reliability. What We’re Looking For: Strong experience with Vue.js v3, TypeScript, and modern JavaScript (ES6+). Expertise in Pinia for state management in high-performance applications. Experience with SPAs, component-based architecture, and reactivity principles. Knowledge of integrating REST APIs or GraphQL for high-throughput systems. Familiarity with performance tuning, scalable architecture, and modern build tools like Vite or Webpack. Exposure to React Native is nice to have.

Role: Senior Scala Developer Location: Europe, Remote Length: Initial 6 months Start date: ASAP - the earlier the better! Signify Technology's are working with a long-standing client of ours, who are a leading fintech provider with an impressive portfolio of blue-chip clients. They are now expanding their engineering team where they need a Senior Scala Developer to join the growing team for an initial 6 months (with the likelihood of extension), About you: 4+ years commercial Scala experience. Fintech background would be highly advantageous. Scalaz & Cats, FS2, Guava, JUnit, Slick, Reactive streams, Mockito, ScalaTest library experience. Spring/Spring Boot/Micro-services architecture frameworks. Docker, Kubernetes, AWS cloud understanding. SQL & MS SQL Server, JDBC databases. Interested? Don't hesitate to apply to find out more!

About the job I'm looking to recruit several Software Developers with expertise Java to work on a large-scale greenfield modernisation project to transform the travel and transportation ecosystem, empowering businesses with innovative, scalable, and efficient technology solutions.   What You'll Work On   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.   Challenges You’ll Tackle   Build new reservation and ticketing systems designed for reliability and scalability. Migrating from legacy systems to modern architectures. Developing scalable microservices with efficient data models. System Integration connecting the travel ecosystem with robust APIs and microservices.   What You Bring   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.   Why Join?   Be Part of Growth: Work in a dynamic, fast-growing team with ample opportunities for professional development. Work Flexibility: Hybrid model. Athens 2-3 days a week. Competitive Perks: Private health insurance, meal allowances, and salaries between €50-€70k (with flexibility for top talent). Cutting-Edge Projects: Collaborate on high-impact initiatives with a startup mindset.

Role: Director of Engineering Location: London, England Contract: Permanent   Signify have partnered with a long standing client who are looking for a Director of Engineering who comes from a strong technical background. Expertise with ML and a strong interest in AI is a massive plus.   You will overseeing a few team and only have a handful of direct reports. They are looking for a DoE who has built and lead high performing teams. Who is not afraid in getting involved with hands on occasionally.   Role: Lead, mentor, and scale multiple Machine Learning engineering teams, empowering both individual contributors and managers. Drive the technical vision and strategy for ML systems, ensuring best practices in architecture, scalability, and performance. Collaborate with stakeholders across product, data, and executive teams to align ML capabilities with business goals. Roll up your sleeves when needed—help guide complex technical decisions and review key ML and engineering work. Build and foster a high-performing, collaborative culture, where innovation and excellence thrive. Scale teams and processes to support hyper-growth and evolving ML capabilities.     Reequipments: Hands-on experience in Machine Learning, Data Science, or ML Engineering—you’ve built and deployed ML models before stepping into leadership. Proven leadership experience managing ML engineers and engineering managers across multiple teams. Strong technical expertise—you can confidently discuss ML architectures, model performance, MLOps, and data pipelines. Understanding of AI or have experience using it Experience with Kafka, Datalakes and Data warehouses Experience in scaling teams and engineering processes in a mid-sized or scale-up company. Ability to communicate complex ML concepts and technical decisions effectively to both technical and non-technical stakeholders. A team-focused leader who empowers engineers, fosters collaboration, and drives innovation.

Role: Scala Developer Location: Europe (remote) Job Type: Permanent Salary: €65,000 - €75,000 Signify Technology is working with a leading online gaming and gambling provider. You will join their Backend team working on exciting new projects, features deployed in current and new microservices which will improve the overall customer engagement and experience on the platform. You will actively influence the approach and project in a modern and agile environment. Requirements Extensive experience with Scala Experience with Akka Experience with Kafka, Kubernetes and Docker Excellent level of English (written and verbal) Bachelor's degree in Computer Science, Software Engineering, or a related field.

Signify is partnering with a well-regarded consultancy firm in Spain, known for providing innovative technology resource solutions to some of the world’s leading gaming and tech companies. The Product: Their Platform is built on AWS, managed by Terraform, with Kubernetes for microservices, Cassandra, Elasticsearch OS, Druid for data storage, Kafka, Hazelcast and Prometheus, Grafana, ELK for monitoring and logs, everything running on Linux. Their CI pipeline is built using Github actions and the CD part uses ArgoCD.   Key Responsibilities: Design, deploy, and maintain the infrastructure that supports all their services, ensuring reliability and scalability. Work closely with Product Engineering teams to support the development, deployment, and monitoring of reliable and performant software applications. Participate in identifying and evaluating new technologies and platform services that can enhance our system’s efficiency, security, and performance. Join their on-call rotation to address urgent production issues, demonstrating ownership and quick problem-solving in critical situations. Continuous Learning & Knowledge Sharing Requirements: 3- 4 years of experience as a Devops Engineer Strong hands-on experience with Linux systems, including performance optimization, security, and troubleshooting. In-depth knowledge of Kubernetes for container orchestration and cluster management. Hands-on experience with AWS services and architecture best practices. Proficiency with Terraform for managing infrastructure as code

Role: Senior/Principal Node Engineers (multiple) Location: UK and Europe, fully remote Pay: £90-105k / €100-125k, (plus bonus) Skills: Node.js, Typescript, Kubernetes, Kafka, RabbitMQ, AWS Why join * High-impact role where you will work on incredibly high-scale platform seeing 100m+ transactions daily * You’ll take on and solve deep, challenging technical problems around optimisation, scale and performance * You will work within a flat structure where all Engineers in a squad contribute and action design and architectural plans * Collaborate and learn with Senior Engineers at the top of their game * Enjoy fully remote work, with high autonomy, freedom and trust given to do your best work * High salary and great range of benefits, including lucrative bonus and unlimited holiday What you’ll bring * Solid commercial experience with Node.js and Typescript on large scale microservices architectures * Extensive work on extremely high-traffic, distributed systems * Good knowledge of Kubernetes and either Kafka or RabbitMQ * Deep understanding of AWS and related tools * Strong Computer Science fundamentals * Happy working fully remote in a B2B capacity  

Role: Blockchain Expert - Technical and Strategic Lead Location: Must be based in Europe Salary: Up to €7k per month + bonus/tokens Signify are partnered with an innovative fintech company specializing in payments, cryptocurrency, and blockchain solutions and are now seeking a Blockchain Expert to lead their upcoming crypto projects, including crypto wallets, decentralized exchanges (DEX), and other groundbreaking blockchain applications. About The Role: Technical Leadership Design and develop blockchain-based solutions, including crypto wallets, DEX integrations, and smart contracts. Provide expertise on on-chain and off-chain architectures, ensuring scalability and security. Evaluate and select appropriate blockchain protocols and tools. Keep up with industry trends, exploring L1, L2, rollups, bridges, and hybrid solutions. Strategy & Market Leadership Act as a key decision-maker on blockchain projects, assessing feasibility, risks, and opportunities. Collaborate with business and product teams to define blockchain strategies aligned with market demands. Conduct research on crypto payments, DeFi, tokenization, and cross-chain interoperability. Development & Implementation Implement smart contracts using Solidity, Rust, or Move, following security best practices. Develop backend services to interact with blockchain networks, optimizing performance and cost-efficiency. Ensure secure and efficient transaction processing. Maintain compliance with blockchain security standards and regulatory frameworks. About You: Must-Have: Blockchain Expertise In-depth knowledge of blockchain protocols, wallets, DEXs, DeFi, and crypto transactions. Experience with Ethereum, Solana, Polkadot, or other major blockchain platforms. Smart contract development (Solidity, Rust, or Move). Strong understanding of gas optimization, security best practices, and consensus mechanisms. Development Skills Proficiency in Rust and TypeScript (preferred). Experience with Node.js, Web3.js, ethers.js, or similar blockchain SDKs. Familiarity with event-driven architectures and message queues. Knowledge of Docker, Kubernetes, AWS, or cloud-based blockchain solutions. Nice-to-Have: Experience with MEV strategies, Flashbots, or on-chain arbitrage. Understanding of zk-SNARKs, zk-Rollups, or other privacy-preserving technologies. Familiarity with DeFi protocols such as Aave, Uniswap, Curve, etc. Exposure to cross-chain solutions and interoperability frameworks. Don't hesitate to apply if this could be of interest!

Exciting Front-End Developer Opportunity in Stockholm – 6-Month Contract We are currently looking for a skilled and motivated Front-End Developer to join a dynamic team in Stockholm for an exciting 6-month contract. This is a great opportunity for developers with a passion for building seamless and engaging user interfaces. Key Responsibilities: Develop and maintain responsive, high-quality web applications. Work closely with the design and back-end teams to ensure a smooth integration of front-end solutions. Write clean, maintainable, and scalable code, while adhering to best practices. Collaborate on various stages of the development lifecycle, from ideation to deployment. Skills and Experience Required: Strong expertise in HTML, CSS, JavaScript, and modern front-end frameworks such as React, Angular, or Vue.js. Solid experience in creating responsive web designs. Knowledge of version control tools like Git. Familiarity with RESTful APIs and integration. Ability to work independently and meet deadlines in a fast-paced environment. Fluency in English, both written and spoken. Knowledge of Swedish is a plus. Why Apply? Work in the heart of Stockholm in a collaborative, innovative team. Engage with challenging, impactful projects in a fast-growing environment. Enjoy flexibility and a chance to enhance your professional growth with a 6-month contract. If you are an innovative front-end developer looking for an exciting challenge in one of Europe’s most vibrant tech hubs, we want to hear from you!

Location: Athens, hybrid (two days in the office) Pay: €60-90k Skills: Node, AWS, Fastify, Terraform, Express, Ansible, Terraform, Grafana If you’re a Lead or Senior Node Developer keen to be instrumental in the build of a completely new to market offering and be the figurehead for all things Node across the engineering team, this could be a great fit. What’s in it for you Join new start-up backed by big industry names with huge investment and growth planned across engineering Be a key part of creating an innovative first-of-a-kind product in the entertainment industry tackling unique and varied technical challenges Immediately become a key member of the engineering team working closely with the CTO architecting and shaping the platform from the ground up Work on complex, distributed and real-time systems with a key focus on scale and performance Work end to end from idea stage through to production Enjoy and contribute to genuine collaborative and continuous learning culture Utilise the latest Node and AWS technology and tooling Take ownership of CI/CD automation and pipelines  What you’ll bring You’ll know the Node ecosystem inside out and still (for the moment) be happy to code day to day You’ll enjoy coaching, supporting and fostering a culture of openness and idea sharing Confident contributing at design and architectural level Performance and scalability are at the forefront of your systems work Tech wise you’re comfortable with AWS and its suite of tools along with Terraform/Ansible -- 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. 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.