• Building and maintaining our platform on top of our cutting-edge voice models, which are used by millions of users. • Improving our existing products to ensure that they’re intuitive, powerful and make innovative use of our research team’s latest break-throughs. This could involve adding significant functionality, or building integrations with other common consumer/enterprise solutions. • Maintaining and strengthening our internal infrastructure as we scale and grow to ensure that our products remain live, performant and secure. • Collaborating closely with engineers and others from the Frontend, Growth and Sales teams to understand, and design solutions for our customers.

Job title: Senior Full Stack Developer (TypeScript, React, Node.js) Type: Full-time, Contract (3 months initially) Location: Bucharest In this role, you will: Join a product team to help deliver critical deadlines where additional capacity is needed. You’ll work hands-on across the stack using TypeScript, React and Node.js (Express), using AI-assisted development tools as part of your day-to-day workflow. You’ll take ownership of small, clearly defined, high-volume tickets that unblock wider delivery, working within a domain-driven team under experienced engineering leadership. You’ll build and extend services on AWS with MongoDB, working within a monolith or modular MVC-style architecture and established CI/CD pipelines (Bitbucket, Jenkins). You’ll write well-tested code and help raise the bar on testing within the team. Why this role You’ll be expected to contribute quickly within a live system, getting up to speed and delivering value within days, not weeks. Work is broken down into small, well-defined tasks to maximise delivery speed and reduce ambiguity. You’ll work under experienced team leads with clear direction, within a team already using AI-assisted workflows and evolving its testing approach. This is a focused engagement designed to increase delivery capacity without disrupting existing teams. Who is hedgehog lab We’re an outcome-driven product consultancy where product, design, engineering and research sit side by side. You’ll join a team focused on building impactful products through collaboration and strong engineering practices. What we are looking for - Significant experience as a mid to senior full-stack developer - Strong experience with TypeScript, including React and Node.js (Express) - Experience working with AWS and MongoDB - Experience working with CI/CD pipelines (Bitbucket, Jenkins) - Strong testing capability, including TDD and reliable unit/integration tests - Comfortable working in embedded teams within existing squads - Able to handle high context switching across small tickets - Proven experience using AI-assisted development tools (e.g. Cursor, Claude) - Able to get up to speed quickly and deliver value within days Nice to have - Experience building internal developer tooling or workflow automation - French language skills - Experience with healthcare systems, particularly French healthcare APIs Ready to apply? Submit your application below.

Job title: Senior Full Stack Developer (TypeScript, React, Node.js) Type: Full-time, Contract (3 months initially) Location: Edinburgh, Newcastle, Leeds, Manchester or London In this role, you will: Join a product team to help deliver critical deadlines where additional capacity is needed. You’ll work hands-on across the stack using TypeScript, React and Node.js (Express), using AI-assisted development tools as part of your day-to-day workflow. You’ll take ownership of small, clearly defined, high-volume tickets that unblock wider delivery, working within a domain-driven team under experienced engineering leadership. You’ll build and extend services on AWS with MongoDB, working within a monolith or modular MVC-style architecture and established CI/CD pipelines (Bitbucket, Jenkins). You’ll write well-tested code and help raise the bar on testing within the team. Why this role You’ll be expected to contribute quickly within a live system, getting up to speed and delivering value within days, not weeks. Work is broken down into small, well-defined tasks to maximise delivery speed and reduce ambiguity. You’ll work under experienced team leads with clear direction, within a team already using AI-assisted workflows and evolving its testing approach. This is a focused engagement designed to increase delivery capacity without disrupting existing teams. Who is hedgehog lab We’re an outcome-driven product consultancy where product, design, engineering and research sit side by side. You’ll join a team focused on building impactful products through collaboration and strong engineering practices. What we are looking for - Significant experience as a mid to senior full-stack developer - Strong experience with TypeScript, including React and Node.js (Express) - Experience working with AWS and MongoDB - Experience working with CI/CD pipelines (Bitbucket, Jenkins) - Strong testing capability, including TDD and reliable unit/integration tests - Comfortable working in embedded teams within existing squads - Able to handle high context switching across small tickets - Proven experience using AI-assisted development tools (e.g. Cursor, Claude) - Able to get up to speed quickly and deliver value within days Nice to have - Experience building internal developer tooling or workflow automation - French language skills - Experience with healthcare systems, particularly French healthcare APIs Ready to apply? Submit your application below.

• This role exists to architect and ship the high-performance backbone of our platforms. • You’ll help us achieve global scalability by owning the end-to-end delivery of resilient Java-based microservices and mentoring the next generation of engineering talent. • Design and evolve scalable microservices using Java 17+ and Spring Boot. • Apply resilience patterns (Circuit Breaker, Bulkhead, Rate Limiting) to ensure systems thrive under pressure. • Evaluate and select database strategies (PostgreSQL, NoSQL, Redis) based on specific performance trade-offs. • Design event-driven architectures utilizing Kafka or RabbitMQ to handle real-time data flow. • Own the full development lifecycle—from initial requirement elicitation to production release. • Ship clean, maintainable, and highly efficient code that sets the standard for the team. • Optimize application performance by profiling JVM internals and fine-tuning garbage collection. • Unblock the release pipeline by automating testing and improving CI/CD workflows in GitLab. • Enforce "Security by Design" and secure coding practices (OWASP Top 10) across all services. • Drive continuous improvement in testing protocols, including integration, performance, and BDD. • Identify and resolve complex production bottlenecks using monitoring tools like ELK or Datadog. • Maintain comprehensive technical documentation that simplifies complex system designs for others. • Mentor junior and middle engineers through high-quality code reviews and technical guidance. • Partner with Product Managers and Delivery Managers to align technical roadmaps with business outcomes. • Foster an Agile culture by actively participating in planning, estimation, and iterative delivery.