Senior Fullstack Engineer

Airswift; Poland; Remote; PLN 120,000 - 180,000; Full time

Job summary

Airswift is seeking a seasoned Fullstack Engineer to join a client delivering large-scale ticketing and distribution platforms. The role is remote from Poland and neighboring countries, with a long-term engagement and a strong emphasis on scalable, cloud-native architectures.

You will work across frontend and backend, using React and TypeScript on the frontend and Java/Spring Boot on the backend, leveraging AWS, IaC with Terraform, and Kubernetes.

Qualifications

• 5+ years of software engineering experience.
• Expertise in JavaScript/TypeScript and React.
• Java and Spring Boot experience.
• AWS cloud services including Lambda, DynamoDB, S3, SQS, EventBridge.
• Terraform and Kubernetes experience.
• 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.

Responsibilities

• Own the full software development lifecycle from design and development through 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.

Skills

5+ years software engineering

JavaScript/TypeScript & React

Java & Spring Boot

AWS cloud services

Terraform & Kubernetes

REST API & microservices

CI/CD (GitLab)

NoSQL & Redis

English communication

AI coding assistants

Tools

Terraform

Kubernetes

GitLab CI/CD

Job description

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.