Senior Full-Stack Developer, Backend, Cloud Infrastructure

Job not on LinkedIn

🔥 0 minutes ago

🇵🇱 Poland – Remote

💵 PLN140 - PLN175 / hour

⏰ Full Time

🟠 Senior

🧑‍💻 Full-stack Engineer

👻 Ghost score 0%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Spyrosoft

WebsiteLinkedInAll Job Openings

1001 - 5000 employees

Founded 2016

🚘 Automotive

🏥 Healthcare

💼 Consulting

Automotive • Healthcare • Consulting

Spyrosoft is a European technology services and software engineering company that partners with enterprises to deliver digital transformation, custom software, and IT consulting. It provides cloud, AI/ML, embedded and IoT development, cybersecurity, product design, managed services, and staff augmentation, and builds platforms and products such as DebtPro, Allpro, and VoicePro. Spyrosoft serves clients across multiple sectors including automotive, healthcare and life sciences, financial services, geospatial, media and entertainment, robotics and energy, and operates from offices across Europe, the UK, and the US.

📋 Description

• Design, develop, and maintain backend services built with NestJS, Fastify, PostgreSQL, Prisma, Redis, and S3 • Develop and enhance the WebRTC signaling server using NestJS, Socket.IO, and Redis • Own and evolve AWS infrastructure using CDK, including ECS Fargate, ALBs, RDS, ElastiCache, S3, and Amplify • Manage and improve CI/CD pipelines using GitHub Actions across development, staging, and production environments • Ensure platform reliability through monitoring, health checks, rate limiting, security controls, and observability practices • Implement and maintain Redis-based locking for cron jobs running across multiple tasks • Improve WebRTC communication reliability, including connection handling, backpressure management, and chunked file transfers • Contribute to frontend development in React and collaborate on cross-functional product features • Build and maintain automated unit, integration, and end-to-end test suites • Optimize deployment workflows and support release automation processes • Collaborate with product and engineering teams to deliver scalable, high-quality solutions • Continuously improve platform performance, maintainability, and operational excellence

🎯 Requirements

• Strong commercial experience with TypeScript and Node.js development • Proven experience building and maintaining backend services using NestJS • Experience with WebRTC data channels and peer-to-peer architectures • Hands-on expertise with PostgreSQL, Redis, and modern API architectures • Solid AWS experience, including ECS Fargate, RDS, ElastiCache, S3, and load balancers • Experience with Infrastructure as Code, preferably AWS CDK in TypeScript • Strong CI/CD knowledge, including GitHub Actions and multi-environment deployment pipelines • Knowledge of cloud authentication mechanisms such as OIDC role assumption • Production-focused experience implementing observability and monitoring solutions • Focus on scalability, security, and reliability • Experience writing automated tests and maintaining high-quality CI pipelines • Fluent English - C1 level