Hybrid Principal Software Engineer

at SH

• Job title: Principal Software Engineer
• Job type: Full Time
• Experience level: Lead
• Salary: Not specified
• Degree requirement: Bachelor's Degree
• Tech skills: Distributed Systems
• Location requirements: Hybrid, Stockholm, Sweden

About the role

• Principal Software Engineer leveraging AI for software delivery at Sinch Telco. Focusing on AI-driven development practices to enhance team productivity and collaboration.

Responsibilities

• Act as a highly productive, hands-on software engineer using AI agent orchestration to deliver features and products across multiple areas
• Define, evolve, and scale best practices, workflows, and tooling for AI-assisted development across coding, testing, documentation, and deployment.
• Evaluate, select, and configure emerging AI development tools and agent frameworks.
• Create reusable agent configurations, custom instructions, and workflows tailored to the organization's codebases.
• Partner with engineers, architects, and product managers to define clear requirements and product direction using a product management-informed perspective.

Requirements

• 8+ years of software engineering experience with proven ability to design, evaluate, and evolve software architectures.
• Solid understanding of distributed systems, APIs, and system integration. Experience with telecom systems, BSS/OSS, messaging infrastructure, or CPaaS is a plus.
• Hands-on experience applying AI-assisted development tools such as Copilot, Cursor, Claude, in real-world software delivery, not just experimentation.
• Experience working with AI-driven and agent-based development workflows, including autonomous coding agents and multistep task orchestration.
• Ability to define clear, structured, and decomposable requirements for both engineers and AI agents, with strong product awareness and understanding of the “why” behind solutions.
• Practical experience with Model Context Protocol, tool-use patterns, or equivalent integration standards for reliable multi-agent/tool orchestration. Experience with multi-agent frameworks such as CrewAI, AutoGen, LangGraph is a plus.
• Strong communication skills, with the ability to articulate technical concepts, document approaches, and collaborate effectively across teams.

Benefits

• Our corporate language is English, please submit your application in English.
• We are not supporting relocation at this time. Applicants must either hold a Swedish or EU/EEA citizenship or have a valid Swedish work permit.
• We are committed to ensuring a recruitment process that is fair, objective, consistent, and inclusive.
• We believe in a two-way process and encourage you to ask questions throughout the journey.
• If this role isn't what you're looking for, please explore the other opportunities listed on our career page: https://www.sinch.com/careers/. No matter who you are, we hope you find an exciting path forward - hopefully with us!