software design

ABOUT SINCH Sinch is pioneering the way the world communicates. More than 150,000 businesses — including Google, Uber, Paypal, Visa, Tinder, and many others — rely on Sinch’s Customer Communications Cloud to power engaging customer experiences through mobile messaging, voice, and email. Whether you need to verify users or craft omnichannel campaigns, Sinch makes it easy. Our AI-infused Super Network, APIs, and applications ensure you can connect with your customers reliably and securely, at every step of their journey. At Sinch we “Dream Big”, “Win Together”, “Keep it simple”, and “Make it Happen”. These values are our foundation! DESCRIPTION We are seeking an Engineering Manager for a hybrid position in our Malmö office to take on a unique role that combines deep technical ownership with people leadership. You will be both a strategic architect and a leader of leaders, guiding high-performing teams while shaping the architectural evolution of our provisioning platforms, the foundation of our global messaging business. Your leadership will ensure our teams are not only delivering today but are also building for the future. Technical & Architectural Leadership Own the Provisioning Architecture across the messaging domain, ensuring scalability, reliability, compliance, and automation. Define and evolve APIs, workflows, and data models for customer onboarding, provisioning, and lifecycle management. Partner with senior architects and engineers to design next-generation distributed systems running in the cloud Provide technical guidance on microservice architectures, Kubernetes, Istio/service mesh, cloud-native design, and observability. Lead architectural reviews and make critical trade-offs balancing performance, cost, and scalability. People & Organizational Leadership Lead and grow multiple engineering teams, ensuring alignment with product strategy and architectural vision. Build leadership capacity within your teams; mentor engineers and engineering managers to become future technical leaders. Foster a culture of technical excellence, knowledge sharing, and clear ownership. Drive recruitment and retention for key engineering roles. Delivery & Execution Translate architectural roadmaps into clear actionable engineering plans. Balance short-term delivery of features with long-term architectural investments. Proactively identify and mitigate risks in mission-critical, high-availability systems. Maintain close collaboration with product management, security, compliance, and business stakeholders. REQUIREMENTS Education & Experience MSc in Computer Science, Engineering, or equivalent practical experience. Experience leading engineering organizations (50+ engineers, ideally across multiple teams). Proven experience guiding the architectural direction of large-scale distributed systems. Technical Expertise Deep knowledge of distributed systems, high-throughput transactional platforms, and global-scale SaaS/CPaaS. Practical experience with major cloud platform like AWS, Kubernetes, and service meshes. Strong background in software engineering with languages such as Go, Java, Typescript, NodeJS, and React. Solid understanding of provisioning, identity management, and API-first architectures. Strong knowledge of security, compliance, and data protection requirements in telecom-scale systems. Leadership Skills Demonstrated ability to scale engineering teams while retaining technical depth. Excellent communication skills with the ability to connect executives, business stakeholders, and technical leaders. Fluent in English (Swedish a plus). Nice to Have Experience leveraging AI assisted development tools (Claude, Gemini, Cursor, etc.) into engineering workflows. Experience with telecom provisioning systems or carrier-grade high-transaction platforms. Familiarity with messaging protocols (SMS, RCS, WhatsApp, etc.). Prior experience balancing architecture and people leadership in a high-growth SaaS or CPaaS company. Our corporate language is English, please submit your application in English. At Sinch, we value learning, embrace change, and offer opportunities for personal and professional growth. Unfortunately, we are not supporting relocation at this time. Applicants must: Hold Swedish or EU/EEA citizenship. Have a valid Swedish work permit. OUR HIRING PROCESS We are committed to ensuring a recruitment process that is fair, objective, consistent, and inclusive. Our approach includes structured, competency-based interviews designed to evaluate your skills, experience, and qualifications relevant to the role. At times, we may include a data-driven assessment to enhance our hiring success and identify candidates likely to excel. 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!

About the role We are looking for an experienced Software Engineer with deep expertise in building scalable backend systems, distributed microservices, and modern cloud-based infrastructure as well as a demonstrated interest in or experience with GenAI and LLM technologies.  This role is ideal for someone who thrives on solving complex architectural challenges and has a strong track record of building and deploying reliable, high-performance software systems at scale. You will be instrumental in designing core systems, APIs, and data flows, while contributing to the evolution of our infrastructure. You’ll collaborate across cross-functional teams to deliver robust solutions, audiovisual data processing, and modern AI/LLM systems and workflows. Key Responsibilities and Qualifications Design, develop, and maintain scalable backend services using one or more of: TypeScript, Node.js, PHP, and Python Design and build powerful REST APIs. Design and and take full cycle ownership of distributed microservices Familiarity with Generative AI technologies and Large Language Models Design, optimize, and manage relational and NoSQL databases including MySQL, DynamoDB, Redis, and Apache Druid Define and implement infrastructure as code using Terraform on AWS Build and maintain robust CI/CD pipelines 5+ years of professional software development experience Bachelor’s degree in Computer Science, Artificial Intelligence,  Machine Learning or similar field. Proven ability to work in fast-paced, cross-functional environments Nice to have Solid foundation in machine learning, AI, and statistical methods Hands-on experience deploying and managing both cloud-native and self-hosted services Experience with VOIP telephony stacks including Asterisk and Kamailio Our ways of working Each team has clear responsibilities and goals and the freedom to collaborate on the optimal design for the products and solutions we build. We want to hear your opinion! We have an agile approach to processes and teamwork and we constantly evaluate and adapt. Our Product and UX teams are closely integrated with development. We use modern frameworks and the best tools available. We work flexibly and have fun at work. Delivering customer value is as important as the wellbeing of our friends and colleagues. We value personal growth and encourage learning, and embrace every opportunity to share knowledge in the team. Where you’ll be and how you’ll work We have three offices: London, Uppsala and Paris. This role is based in the Uppsala office. We work business hours, but we understand that life sometimes gets in the way. Kaisa Culture What makes Kaisa stand out? Our values, guiding us every day: Innovate with Agility - We move fast, think creatively, and adapt seamlessly. Win Together - Success is a team effort, and we celebrate it as one. Own It - Accountability drives progress, and we take pride in our work. Champion Sustainability and Diversity - We foster inclusivity and make responsible choices. Spread the Vibe - A positive atmosphere fuels great ideas and connections.