Software Development Engineer in Test (SDET) - Serbia

Job Description

About us

OrderMesh is the operating system for modern print-on-demand fulfillment.

We build intelligent order orchestration software that sits at the center of a complex global supply chain — connecting brands, marketplaces, and producers through a single platform. We replace the fragmented legacy systems that the industry has outgrown, with modern, API-first software built for today's scale and speed.

OrderMesh is part of Taylor Corporation, a multi-billion-dollar global leader in print, manufacturing, and technology-enabled services — operating one of the largest production footprints in the world, serving enterprise customers across retail, ecommerce, and beyond.

The best of both worlds — and we mean it.

Most companies say "startup energy with enterprise backing." Few actually deliver it. At OrderMesh, the combination is real:

• Startup ownership: Small, high-trust teams. Real autonomy over architecture. A direct line between what you build and how it performs in production.
• Enterprise foundation: Long-term financial stability, SOC 2 compliance, access to global-scale production environments, and deep domain expertise in manufacturing, logistics, and supply chains.

Why now?

We're at an inflection point. The platform already runs real, live production volume — and we're expanding its capabilities, building out new infrastructure, and actively shaping how an entire industry operates. The decisions you make here — technical, architectural, product-driven — will have lasting impact.

This isn't a role where you maintain someone else's roadmap. You'll be building serious software, solving meaningful real-world problems, and doing it with the backing of a world-class organization.

If that's the kind of work you're looking for, OrderMesh is a rare opportunity.

About the Role

As a Software Development Engineer in Test (SDET) at Ordermesh Inc, you will be a key force in evolving our automation-first quality culture across a complex microservices platform (Kafka, NoSQL, REST APIs, async workflows). The role is less about manual gatekeeping and more about building CI-integrated quality pipelines that let developers ship confidently and independently. It's for someone who wants to own the full automation strategy — from build-time testing to real-time quality metrics.

What You’ll Do

• Champion an automation-first mindset; manual testing should be the exception, not the rule.
• Design, build, and scale automated test frameworks for APIs, UI, and end-to-end microservice validation using Node.js, Playwright, and related frameworks.
• Develop load and resilience testing suites with Grafana k6 to benchmark and harden distributed systems.
• Integrate test execution and quality gates deeply into GitHub Actions, ensuring every commit, PR, and deployment is validated by automation.
• Collaborate closely with MCPs: Kafka event flows, service mesh routing (Istio), and inter-service contracts to design automated validation of message schemas, ACLs, and service dependencies.
• Mock endpoints with services like microcks or postman to simulate responses.
• Lead TDD adoption by embedding test scaffolds into developer workflows and enforcing test coverage standards across repositories.
• Embed security testing and data validation checks into automation frameworks for proactive vulnerability detection.
• Create test observability dashboards (via Grafana or Datadog) that expose quality metrics alongside performance and error budgets.
• Perform exploratory testing to supplement automation with contextual discovery and edge-case validation.
• Collaborate with developers, SREs, and product managers to drive a shared understanding of quality across environments.

Requirements

• 5+ years of hands-on experience building and maintaining automated test frameworks for microservice and web applications.
• Strong proficiency in Node.js, JavaScript/TypeScript, or equivalent modern language.
• Demonstrated experience integrating tests into CI/CD systems; ideally GitHub Actions, Jenkins, or Azure DevOps.
• Proven track record in load testing (Grafana k6) and performance analysis at scale.
• Experience validating MCP integrations including: message brokers (Kafka), service meshes (Istio), and REST/gRPC endpoints.
• Working knowledge of Playwright or similar browser automation frameworks.
• Understanding of TDD, security testing, and DevSecOps principles.
• Excellent debugging, observability, and root-cause analysis skills.
• Bachelor's degree in Computer Science or equivalent practical experience.
• Passion for driving automation-first culture and mentoring others in modern test engineering practices.
  
  

Bonus Qualifications

• Experience with Azure, Kubernetes, and containerized CI environments.
• Familiarity with contract testing frameworks for validating MCP communication.
• Experience with Grafana, Datadog, or similar platforms for system and test observability.
• Familiarity with B2B, eCommerce, or fulfillment ecosystems