Senior Python Developer
Confirmed on the employer's own hiring board on Oct 17, 2026. First seen by Alion on Aug 18, 2026.
Company Overview
Scalr is an American-Ukrainian product company that has been on the market since 2009.
Throughout this time, we have been working in the domain of cloud solutions. The company’s current product is a B2B SaaS solution focused on the concept of Infrastructure as Code (IaC), enabling DevOps engineers (in both large and small organizations) to automate the management of their clouds using Terraform or OpenTofu.
Terraform and OpenTofu themselves are used to describe cloud infrastructure configurations through code in a simple and user-friendly way. Scalr, in turn, develops a SaaS product that allows organizations to use Terraform and OpenTofu at scale.
The end users of the product are DevOps teams and engineers. Scalr enables centralized management and decentralized deployment of infrastructure, providing full visibility and control over what’s happening. It also offers integrations with various notification and observability solutions such as Slack, Microsoft Teams, Datadog, and others.
As we expand the platform, we’re seeking a Senior Backend Engineer excited to push technical boundaries and solve complex, large-scale problems.
Position Overview
As a Backend Engineer, you will play a crucial role in designing and constructing the core backend systems, which are divided into several essential aspects: a worker responsible for background tasks, a highly performant API developed using Flask based on the JSON-API specification, and an Agent that communicates with our server. The principal stack includes Python, MySQL, Go, Redis, Docker, Kubernetes, and various Python libraries for different problem domains such as cloud, networking, data, concurrency, parsers, etc. You will be an integral part of our platform, contributing significantly to ensuring its reliability, scalability, and efficiency.
Also at Scalr, we believe that the best software is produced when engineers take pride and ownership of the code they write, which is why engineers are expected to provide customer support. We value troubleshooting skills and customer empathy because, at the end of the day, writing good code and helping customers be successful is what lays the foundation for building great companies.
Must-Have:
Hands-on, product-focused experience owning backend systems in production, from design through deployment and ongoing optimization (Python)
Concurrency and parallelism (threading, multiprocessing, gevent, asyncio, etc.)
Backend web development experience
OOP and Design patterns
Relational database design and query optimization
Would Be a Plus:
DevOps experience (Terraform, Chef, Ansible, SaltStack, etc.)
Knowledge of Linux systems
Knowledge of network protocols (TCP/IP stack, sockets, HTTP/HTTPS, etc.)
Experience with Go
Experience in full-stack web development (ReactJS)
As Part of Our Team, You Will Work On:
Taking ownership of features, delivering features from idea to production
Contributing to the identification and resolution of bottlenecks and performance challenges, enhancing the overall efficiency of the system
Providing customer support and demonstrating commitment to code quality through active participation in troubleshooting efforts
Development of remote state and operations backend for Terraform / OpenTofu
API development for Infrastructure as Code platform - configuration and management of the user environment using UI/API
Integration with third-party services - VCS, online payments, cloud computing, etc
Implementation of best practices for coding, testing, and deployment to uphold the quality of the codebase
Engaging in code reviews, fostering a culture of collaboration and continuous improvement among the engineering team
Challenges You’ll Need to Meet:
Each task is unique and will require immersion in the subject
Studying third-party services APIs, understanding Terraform behavior, and designing internal services
Involvement in extensive research and development
Modernizing legacy approaches
Scalr Offers:
Work with an exciting engineering product in an enjoyable environment
The opportunity to see how your ideas and visions are realized
Attractive compensation and benefits package
Long-term contract and tax compensations
Flexible schedule and possibility to work entirely remotely
Medical insurance
20 working days of paid vacation and 2 weeks of paid sick leaves