Senior Developer - DevOps/SRE
Senior Developer - DevOps/SRE
Uppsala, Sweden | Full-time | Hybrid/Remote Flexible
About Dwellir
Dwellir is a leading blockchain infrastructure company providing high-performance RPC services across 150+ blockchain networks. We serve market makers, hedge funds, DeFi protocols, and web3 developers worldwide on globally distributed node infrastructure. Based in Uppsala, Sweden, we're building the backbone of the web3.
The Role
We're looking for a Senior Developer to join our platform team. You'll build the software that powers our infrastructure — from DevOps tooling and monitoring systems to deployment pipelines, management software, and new REST APIs. You'll also play a key role in our reliability engineering efforts, helping us reduce toil through automation and maintain high availability across our globally distributed systems. This is a hands-on role where you'll ship production code that directly impacts how we operate and scale.
Key Responsibilities
- Build and maintain internal DevOps tooling and automation software
- Develop monitoring and observability systems for distributed infrastructure
- Design and implement deployment pipelines and release management tools
- Create management software for provisioning and operating blockchain nodes at scale
- Build new REST APIs for internal and customer-facing services
- Participate in incident response, on-call rotations, and blameless postmortems
- Identify and eliminate toil through automation and self-healing systems
- Contribute to capacity planning and performance optimization
- Document runbooks, technical solutions, and operational procedures
Required Qualifications
- 5+ years of software development experience
- Proficiency in Python
- Strong backend development skills with experience building production systems
- Experience with Linux system administration and DevOps practices
- Proficiency in designing and building REST APIs
- Familiarity with monitoring, alerting, and observability tools (Prometheus, Grafana, Loki, Grafana OnCall)
- Excellent problem-solving skills and ability to debug complex distributed systems under pressure
- Strong communication skills in English
Nice to Have
- Experience with Juju for application modelling and orchestration
- Proficiency in Go
- Proficiency in Rust
- Knowledge of web3 and blockchain RPC interfaces
- Experience with API gateways (Kong, Traefik, etc.)
- Experience building and operating globally distributed systems
- Background in chaos engineering or fault injection testing
What We Offer
- Competitive salary with equity options
- Flexible hybrid/remote work arrangement
- Opportunity to work with cutting-edge blockchain technology across 150+ networks
- Collaborative, flat organizational structure with direct impact on company direction
- Blameless engineering culture focused on learning and continuous improvement
- Professional development budget and conference attendance
- Health and wellness benefits
- Modern office in Uppsala with great coffee
- Work with a diverse, international team
Ready to Apply?
Send your CV and a brief cover letter explaining why you're excited about blockchain infrastructure to ben@dwellir.com. Include links to your GitHub profile or relevant projects. We review applications on a rolling basis.