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Senior Software Engineer (Isolation/Sandboxing)

Job Overview

Location

Lisbon, Portugal; Porto, Portugal

Job Type

Full-time

Category

Software Engineer

Date Posted

June 3, 2026

Full Job Description

đź“‹ Description

  • • Design and develop high-volume, low-latency applications for mission-critical systems with a focus on isolation and sandboxing infrastructure.
  • • Build and maintain a high-performance queuing and storage engine that supports enterprise-grade orchestration at scale.
  • • Develop API interfaces used by customers, UI teams, and internal systems to enable seamless integration and data flow.
  • • Collaborate with UI, connectivity, and DevOps teams to design elegant, scalable solutions to complex distributed systems challenges.
  • • Contribute across all phases of the development lifecycle, from architecture and design to testing, deployment, and optimization.
  • • Write well-designed, testable, and efficient code in systems-level languages including C, Go, and Rust.
  • • Leverage Linux kernel networking primitives such as netfilter, nftables, eBPF, tc, and network namespaces to implement secure and performant isolation mechanisms.
  • • Apply deep expertise in L2, L3, and L4 networking protocols to ensure robust, secure, and reliable communication between isolated environments.
  • • Optimize and improve existing systems for performance, scalability, and security, with a focus on enterprise-grade reliability.
  • • Work with public cloud infrastructure providers (AWS, Azure, Google Cloud) to deploy and manage distributed systems in multi-cloud environments.
  • • Utilize Kubernetes concepts to orchestrate and manage containerized workloads in a secure, isolated manner.
  • • Debug and resolve complex performance bottlenecks and system failures with precision and speed.
  • • Analyze protocol-level behavior to understand discrepancies between specifications and real-world Internet behavior.
  • • Drive end-to-end ownership of solutions, including design, implementation, testing, monitoring, and deployment.
  • • Work across teams to identify and implement common, sustainable architectural patterns that reduce redundancy and increase reliability.
  • • Contribute to open source projects as a means of advancing industry standards and sharing technical expertise.
  • • Maintain a strong focus on security, isolation, and sandboxing to ensure enterprise customers can operate with confidence in multi-tenant environments.
  • • Solve complex customer-facing problems with attention to detail and a commitment to operational excellence.
  • • Stay current with emerging technologies and trends in distributed systems, networking, and cloud infrastructure.
  • • Foster a culture of innovation, ownership, and continuous learning within a polyglot engineering environment.

Skills & Technologies

Rust
AWS
Azure
GCP
Kubernetes
Senior
Remote

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About Workato, Inc.

Workato provides low-code/no-code enterprise automation and integration software that connects applications, data, and business processes across cloud and on-premises systems. Its platform offers pre-built connectors, recipes, and AI-powered workflow orchestration for finance, HR, IT, sales, support, and marketing functions. The company enables organizations to automate tasks without extensive coding, reducing manual effort and accelerating digital transformation initiatives. Workato serves mid-market to large enterprises worldwide through a subscription-based SaaS model, emphasizing security, governance, and scalability for complex integrations.

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