Senior Fullstack Engineer

Fullstack Engineer

Duration: Long-term

Workload: Full-time hours

Setup: Freelance (Daily Rate / Limited Company / Umbrella / Sole Trader)

Sponsorship: Not Provided

Location: Remote from Poland, Romania, Bulgaria, Czechia or Slovakia

We are looking for a Fullstack Engineer to join a client delivering large-scale ticketing and distribution platforms, building modern, high-traffic applications used by customers globally.

Key Responsibilities

• Own the full software development lifecycle from design and development through to deployment and support.
• Develop scalable frontend applications using JavaScript/TypeScript and React.
• Build backend services, REST APIs, microservices and event-driven architectures using Java and Spring Boot.
• Design and maintain cloud-native solutions leveraging AWS services including Lambda, DynamoDB, S3, SQS and EventBridge.
• Implement Infrastructure as Code using Terraform and manage containerised workloads in Kubernetes.
• Enhance CI/CD pipelines and DevOps practices to support reliable deployments.
• Collaborate across engineering teams, contributing to architecture, code reviews and technical documentation.
• Use AI-assisted development tools responsibly to improve engineering productivity while ensuring code quality.

Must-Have Skills

• 5+ years of software engineering experience.
• JavaScript/TypeScript and React expertise.
• Java and Spring Boot experience.
• AWS cloud services (Lambda, DynamoDB, S3, SQS, EventBridge).
• Terraform and Kubernetes.
• REST API design and microservices architecture.
• CI/CD experience, ideally GitLab CI/CD.
• NoSQL databases, Redis and event-driven systems.
• Strong English communication skills.
• Experience using AI coding assistants in development workflows.

Nice-to-Have

• Next.js.
• GraphQL.
• Kafka or similar messaging platforms.
• Experience with high-traffic consumer platforms or third-party integrations.