Senior Software Engineer

Sinch; Stockholms kommun; On-site; SEK 700,000 - 900,000; Full time

Job summary

Sinch Telco is a standalone business within Sinch. Our products support communications services for mobile operators around the globe.

Our systems are backend systems that communicate with other backend systems. As our Software Engineer, you will work hands-on to design, verify, and deliver AI-powered software, leveraging AI agents and tools to improve development workflows and product quality across the team.

Qualifications

• Extensive experience in software engineering for backend systems.
• Experience designing and evolving distributed backend architectures.
• Hands-on with AI-driven development workflows and tools.

Responsibilities

• Develop features using AI agents to deliver backend software.
• Lead best practices, workflows, and tooling for AI-assisted development.
• Evaluate and configure AI development tools and frameworks.
• Define clear requirements and product direction with PMs and engineers.

Skills

Extensive software engineering

Distributed backend systems

AI-driven development workflows

Clear requirements definition

Strong communication

Tools

Copilot

Cursor

Claude

Job description

Sinch Telco is a standalone business within Sinch. Our products support communications services for mobile operators around the globe. Our systems are backend systems that communicate with other backend systems. You will not find them on Sinch's public website. We are protocol heavy and regard USSD, SMPP, Diameter, and SIP as about as much frontend it gets in our domain. We are looking for an experienced software engineer with focus on AI-driven Development, to further accelerate adoption of AI-powered development practices across Sinch Telco.

In this role, you’ll be a hands‑on practitioner, leveraging AI agents to design, build, verify and deliver our type of software while shaping how AI is applied in our software development. Together we move toward a paradigm where software developers manage teams of specialized AI agents for requirements analysis, implementation, testing, documentation, and deployment. We intend to unlock new capabilities that enable teams to build and ship faster with higher quality, security, and maintainability.

You have a vision for the future of AI-driven software development but understand that progress requires practical steps and patience. You demonstrate value through hands‑on work and tangible results. You collaborate well with experienced colleagues as a peer and respect existing domain knowledge while contributing new perspectives and influence through the quality of your work. You are self‑directed, proactive, and comfortable operating with ambiguity. The AI tooling landscape changes rapidly and you are energized by this pace.

As our Software Engineer, you will:

• Work in a team as a highly productive, hands‑on software engineer, leveraging agents to deliver features and products across multiple areas.
• Lead by example to spread best practices, workflows, and tooling for AI‑assisted development for coding, testing, documentation, and deployment.
• Assist in evaluation, selection, and configuration of AI development tools and agent frameworks to improve software development.
• Define clear requirements and product direction with a product management perspective in cooperation with product managers and team members.

REQUIREMENTS

• Extensive software engineering experience, with a proven ability to design, evaluate, and evolve software architectures.
• Solid understanding of complex distributed backend systems. Experience with telecom systems, BSS/OSS, or messaging infrastructure is a plus.
• Hands‑on experience leveraging AI‑assisted development tools such as Copilot, Cursor, Claude, for production software delivery, not just experimentation.
• Experience working with AI‑driven 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 long-term stability.
• Practical experience with Model Context Protocol. Experience with multi‑agent frameworks is a plus.
• Strong communication skills, with the ability to articulate technical concepts, document approaches, and collaborate effectively across teams

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.

OUR HIRING PROCESS

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!