Senior Back-end Engineer
Robots and Pencils
| Company | Robots and Pencils |
| Category | Engineering |
| Location | Lviv |
| Remote | On-site (inferred) |
| Employment | Not stated |
| Level | Senior |
| Salary | Not stated by the employer |
| Posted | 22 Jul 2026 |
| Last verified | 30 Jul 2026 |
| Source | Employer career page (greenhouse) |
Description
Company Overview
Robots & Pencils is an applied AI engineering firm building the next frontier of business architecture. We design and ship AI co-workers that integrate into enterprise operations and deliver measurable results for our clients. We're all in on AWS, combining deep UX capability with senior engineering talent to get AI into production fast and keep it there. We’ve earned the trust of leaders across Consumer Products and Retail, Education, Energy, Financial Services, Healthcare, and Manufacturing and more, and earned a reputation as the nimble alternative to traditional global systems integrators. Founded in 2009, with delivery centers in Canada, the United States, Eastern Europe, and Latin America, we are smaller, faster, and more senior by design. Our teams average 15+ years of experience. We move fast, sweat the details, and build things that actually ship.
Position Overview
We’re looking for a Senior Back-end Engineer (L4) to contribute to the development and delivery of complex, integration-heavy platforms. Our client is a US resort in the first phase of a large scale digital transformation initiative, beginning with Mobile Apps integrated with their in-house systems.
The ideal candidate is comfortable working within a modern enterprise digital ecosystem supporting native iOS and Android mobile applications, API-driven architectures, middleware platforms such as MuleSoft, authentication and identity management solutions like AWS Cognito and OAuth, and cloud-based infrastructure within AWS environments. Experience working with content management systems and personalization platforms such as Contentful and Uniform is highly valuable given the project’s dynamic content and guest personalization requirements.
What You’ll Do
Develop scalable back-end services : Optimize backend performance, scalability, and reliability, and implement security best practices including authentication and authorization
Contribute to event-driven architectures and asynchronous system operations
Collaborate with MuleSoft, Contentful/Uniform, and Mobile App teams to deliver high-quality product features
Work closely with architects and product owners on system design and implementation
Participate in code reviews and contribute to a culture of excellence
Bring an AI-forward mindset to your daily work, using tools like Claude, Cursor, and other modern AI assistants to ship higher-quality work at pace
Contribute to shared engineering practices that lift the quality of work across the team
What You’ll Bring
8+ years of professional software engineering experience, focused on back-end development (e.g., Node.js, Python) and API integration
Strong hands-on experience with AWS Lambdas, Node.js and GraphQL
Experience with event driven processing
Demonstrable usage of AI-forward tools such as Claude Code or Codex in software development lifecycle
Solid knowledge of SQL and NoSQL dbs
Experience working in agile teams and delivering production-ready software
Experience with CI/CD pipelines (e.g., GitHub Actions, GitLab CI)
Upper-Intermediate level of English (written and spoken)
Helpful Extras and Unique Skills
Experience with Contentful and Uniform
You’ll Do Well Here if You Are
A doer. You see something broken and fix it. You'd rather move on clarity than wait for certainty.
A fast learner who knows you don't know everything. The AI landscape changes weekly. You're senior enough to know better and curious enough to keep learning anyway.
Direct in a way that makes the work better. You give honest feedback. You'd rather have the hard conversation than blow smoke.
Obsessed with craft. You know genius is in the details. You ship exceptional, not perfect, and you don't put your na
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