Find Sinch Senior Software Engineer software engineering jobs

Sinch is a cloud communications platform provider reaching virtually every mobile phone globally.

Sinch is seeking a Full Stack Engineer to join their cloud communication platform team, which is used by 8 out of 10 leading tech giants in the US and handles 145 billion API transactions yearly. The role focuses on enhancing both backend and frontend applications within the Provisioning domain. The ideal candidate will work on server-side logic and frontend interfaces, utilizing Java for backend and modern JavaScript frameworks like React for frontend development. The position requires strong collaboration skills and expertise in improving code quality, optimizing workflows, and resolving technical challenges. The platform's impressive scale and complexity offer an exciting opportunity for developers who want to work on a system that can reach virtually every mobile phone globally in seconds.

Senior Full Stack Engineer position at Sinch, working on a cloud communication platform with both backend and frontend development using Java and React.

Fullstack Software Engineer

Sinch is pioneering customer communications, providing cloud solutions for mobile messaging, voice, and email to over 150,000 businesses including Google, Uber, and PayPal.

Sinch, a leading provider of customer communications solutions serving over 150,000 businesses including tech giants like Google, Uber, and PayPal, is seeking a Senior Software Engineer specialized in .NET Core. The role is part of their Technology R&D Voice & Verification API team, working on cutting-edge cloud-based communication solutions.

The position offers an exciting opportunity to work with modern technologies including C#, .NET Core, Kubernetes, and AWS. You'll be part of a forward-thinking team that values innovation and technical excellence, developing scalable distributed systems that power global communications.

As a Senior Backend Engineer, you'll take ownership of critical systems, working in an agile, cross-functional team environment. The role combines technical expertise in backend development with DevOps practices, requiring skills in both system architecture and operational excellence.

Key technical aspects include working with distributed systems, CI/CD pipelines, and cloud infrastructure. The ideal candidate will have strong experience with C# and .NET Core, plus knowledge of DevOps principles. Additional valuable skills include experience with service-oriented architecture, databases (MySQL, MSSQL, Redis), and cloud platforms.

Sinch offers a collaborative environment where values like "Dream Big", "Win Together", "Keep it simple", and "Make it Happen" drive innovation. The company provides a structured, fair hiring process and values diversity and inclusion. This role presents an excellent opportunity for experienced engineers looking to impact global communication solutions while working with cutting-edge technologies.

Senior Software Engineer position at Sinch, developing scalable backend systems using .NET Core and cloud technologies for global communication solutions.

Senior Software Engineer (.NET Core)

Sinch is pioneering customer communications, providing mobile messaging, voice, and email solutions to 150,000+ businesses including Google, Uber, Paypal, Visa, and Tinder.

Sinch, a leading customer communications platform serving over 150,000 businesses including tech giants like Google, Uber, and PayPal, is seeking a Backend Engineer to join their Financial Platform - Billing domain. The role offers an opportunity to work with a company that's revolutionizing how businesses communicate with customers through mobile messaging, voice, and email.

The ideal candidate will be responsible for improving existing back-end applications and processes, with a focus on the Financial Platform - Billing domain. You'll be working with Java primarily, analyzing code bases, improving processes, and implementing solutions that enhance system efficiency and user experience. The position requires strong technical expertise in backend development, RESTful services, and database management.

What makes this role particularly exciting is the chance to work on systems that power communications for some of the world's largest companies. You'll be part of a team that values innovation and collaboration, guided by principles like "Dream Big", "Win Together", "Keep it simple", and "Make it Happen". The hybrid work environment offers flexibility while maintaining team connectivity.

The role offers growth opportunities through exposure to cutting-edge technologies including AWS, Docker, and Kubernetes. Experience in messaging/telecom technologies or finance domain billing applications is highly valued. The company provides a structured, fair recruitment process and emphasizes continuous learning and development.

For the right candidate, this position offers the chance to make a significant impact on systems that facilitate global communications while working with a team that values technical excellence and innovation.

Senior Backend Engineer position at Sinch, focusing on Financial Platform - Billing domain, requiring 5+ years of Java experience and strong API development skills.

Backend Engineer

Sinch pioneers customer communications cloud, empowering businesses to reach everyone worldwide through mobile messaging, email, voice, and video.

At Sinch, we pioneer customer communications cloud, empowering businesses to reach everyone worldwide through mobile messaging, email, voice, and video. As a Senior Machine Learning Engineer, you'll play a vital role in building and expanding the core machine learning capabilities of Sinch's AI offering. You'll work in the Generative AI team, contributing to various Sinch products with AI capabilities.

Your responsibilities include interacting with stakeholders, analyzing data, experimenting with algorithms, deploying ML solutions, exploring new AI technologies, and setting up proof-of-concepts. You'll have the autonomy to define objectives and take ownership of the entire product development lifecycle.

We're looking for an AI enthusiast with at least five years of ML experience, familiar with concepts like clustering, embeddings, and neural networks. You should have experience taking ML applications to production, strong software engineering skills, and proficiency in Python. Experience with LLM-based applications is crucial.

Our tech stack includes Python, FastAPI, LangChain, Scikit, PyTorch, MLFlow, Kubernetes, GCP, AWS, and LLMs from OpenAI, Gemini, and LLama. Join us in pioneering the future of communication technology!

Senior Machine Learning Engineer role at Sinch, pioneering AI-driven communication solutions. 5+ years ML experience required. Hybrid work in Belgium/Netherlands.

Senior Machine Learning Engineer

Sinch pioneers customer communications cloud, empowering businesses to reach everyone worldwide through mobile messaging, email, voice and video.

At Sinch, we pioneer the way the world communicates. Our customer communications cloud empowers businesses to reach everyone in world, in seconds or less, through mobile messaging, email, voice and video. We reach every phone on the planet 7 times a year and 8 out of 10 largest US tech companies are our customers. Sinch adds a layer of intentional intelligence on top of that, to build smarter, safer conversational experiences, faster.

As a Software Engineer on the Conversational AI team, you will play a crucial role in shaping the future of conversational experiences in Sinch Chatlayer, Sinch Engage, and Sinch MessageMedia. You will collaborate with a talented team to design, develop, and deploy cutting-edge conversational AI solutions that empower businesses to communicate more effectively with their customers.

Key Responsibilities:
- Design and Development: Architect, design, and implement high-performance, scalable software solutions for conversational AI applications.
- Collaboration: Work closely with cross-functional teams including product managers, designers, and other engineers to deliver robust and reliable software.
- Innovation: Contribute to the continuous improvement of our technology stack, adopting new technologies and best practices to enhance the capabilities of our products.
- Maintenance and Support: Participate in code reviews, testing, and troubleshooting to ensure the quality and reliability of the software.
- Scalability: Ensure the software can scale to meet the demands of our global customer base.
- Documentation: Write and maintain clear, concise documentation for the software and its interfaces

Tech stack: Golang, Typescript, Node JS, Kafka, Redis, RabbitMQ, MongoDB, Postgres, Click House, Kubernetes, Google Cloud, React.

Requirements:
- Experience working across multiple technology stacks using different programming paradigms.
- Experience working in a customer focused environment, ideally within a SaaS or subscription business.
- Experience in the High-Level languages Go and Node.JS.
- Expertise in modern front-end frameworks such as React.
- Consistent track record working with Typescript in a professional or open-source setting.
- Ability to work effectively in a collaborative team environment.
- Strong verbal and written communication skills, with the ability to clearly articulate technical concepts to both technical and non-technical stakeholders.
- Fluency in English.

Big Plus:
- Experience building analytics solutions using technology like Click House, Timescale DB, or Apache Flink.
- Experience with Micro-frontend architectures, web components and the latest Web APIs.
- Experience with test automation. We use Cypress.
- Solid understanding of Kubernetes and networking
- Experience with Kafka streaming

Senior Software Engineer - Voice role at Sinch, pioneering conversational AI solutions for global customer communications.

Senior Software Engineer - Voice

Sinch is the Customer Communications Cloud, powering meaningful conversations at scale across messaging, voice, and email to help businesses deliver unified, personalized experiences.

Sinch, the Customer Communications Cloud, powers meaningful conversations at scale across messaging, voice, and email to help businesses deliver unified, personalized experiences that truly revolve around their customers. Over 150,000 businesses, including 8 of the 10 largest tech companies in the world, rely on Sinch for their customer communication needs, with over 700 billion customer engagements each year.

Sinch is seeking a Product Security Engineer to join their global team. The role involves ensuring the building of the most secure products possible. They are looking for someone with software development experience who wants to specialize in application security. The successful candidate will work with application security testing tools and collaborate closely with engineering and product teams to shift security to the left.

Key responsibilities include:
- Working with software engineering teams to ensure standard methodologies in application code construction
- Creating application threat models and validating security controls implementation
- Monitoring application security scanning systems output
- Planning and coordinating Application Development Security training
- Explaining software vulnerabilities and remediation options
- Occasional direct work with customers

Required skills and attributes:
- Solid experience in web application software construction using modern languages (Java, C#, Python, Javascript, Golang)
- Experience in application security (highly desirable)
- Knowledge in building application threat models and providing security controls
- Experience with various databases (RDBMS and NoSQL)
- Understanding of OWASP Top 10 web application security risks
- Excellent communication and problem-solving skills
- Experience with authentication, authorization, cryptography, and security vulnerabilities
- Knowledge of Source Code Management systems
- Experience with SAST/DAST/SCA application security tooling (highly desirable)
- Experience in the telecommunications industry (beneficial)
- Experience with public clouds and cloud security frameworks (preferred)

Sinch offers a range of benefits, including:
- Flexible work arrangements and hybrid working
- Generous parental leave program
- Birthday day off
- Generous annual leave program
- Monthly fitness reimbursement and wellness programs
- Career development support
- Virtual counseling resources
- Paid time off for volunteering
- Access to Reward+ program for discounts and deals

Sinch is committed to building an inclusive, diverse workforce and welcomes applications from all qualified candidates.

Join Sinch as a Product Security Engineer to ensure secure product development, collaborate with global teams, and advance your career in application security.

Product Security Engineer

Sinch is a global leader in Communication Platforms as a Service (CPaaS) and mobile customer engagement, allowing businesses to reach everyone on the planet through mobile messaging, email, voice, and video.

Sinch is a global leader in the growing market for Communication Platforms as a Service (CPaaS) and mobile customer engagement. As a Senior DevOps Engineer, you will work as part of the Infrastructure team to build automation and tools to deploy, monitor, and maintain platform health. You'll be working on improving our event-driven micro-service platform based on EKS/K8s, which was launched in 2024 and has EKS (Kubernetes) and knative at its core.

Your responsibilities will include:
- Leading efforts to ensure platform reliability
- Building/improving logging, monitoring, and alerting solutions
- Identifying and addressing infrastructure weaknesses
- Troubleshooting production issues
- Participating in on-call rotation for production support
- Supporting teams hosting their services on the platform

To be successful, you should have:
- Proven experience supporting Kubernetes in production
- Experience managing AWS cloud services
- Strong operations background
- Experience with logging, monitoring, and alerting solutions
- Expertise in IaaC tools like Terraform or CDK
- Familiarity with GitOps
- Software development background
- Bachelor's degree in Computer Science or related experience

Additional beneficial skills include experience with Gitlab CI/CD, GCP, distributed databases like TiDB, IDP tools like Backstage or Port, and AWS networking basics.

Sinch offers a range of benefits, including health and life insurance, a flexible work environment, and retirement savings plans. The company is committed to diversity, inclusion, and providing a fair and non-discriminatory hiring process.

Join Sinch to be part of a global team working on cutting-edge communication technology, reaching every phone on earth with over 147 billion conversations every year.

Senior DevOps Engineer at Sinch: Build and maintain scalable infrastructure for global communication platform.

Senior DevOps Engineer

Sinch is a global organization with presence in more than 60 countries, helping companies engage with customers through mobile messaging, email, voice and video.

We are Sinch, a growing global organization with presence in more than 60 countries, helping amazing companies engage with customers through mobile messaging, email, voice and video.

Our Malmö office, conveniently located by the train station, is seeking a Senior Java Backend Developer to join our team. We have a modern microservice architecture with code no older than two years, hosted in AWS and our own data centers, using cloud native technologies like Kubernetes and Docker.

As a Senior Java Backend Developer, you will:
- Design, develop, and deploy backend services focusing on high availability, high performance, low latency, and scalability.
- Be heavily involved in turning user stories into testable, maintainable, and high-quality code.
- Be a valued member of an autonomous, cross-functional team delivering our messaging experience to businesses worldwide.
- Promote and share knowledge for improvement of methodologies and best practices.
- Collaborate closely with passionate team members, having fun at work and feeling proud of creating world-class solutions for customer engagement.

Requirements:
- 5+ years of relevant experience working with Java and Spring Boot
- Experience building microservices with cloud technologies, preferably AWS
- Experience with high-performing systems using message broker solutions such as Kafka and RabbitMQ
- Comfortable working in an international environment in English

The role requires commuting to the Malmö office on a regular weekly basis. Join us if you're a passionate problem solver who enjoys tackling complex challenges and wants to be part of a team serving more than 150,000 businesses globally.

Senior Java Backend Developer position at Sinch in Malmö, Sweden. Design and develop high-performance microservices for global messaging platform.

Sinch Senior Software Engineer Software Engineering Jobs

Find Sinch Senior Software Engineer software engineering jobs