Antwerp, Flanders, Belgium Remote (Global)

Sinch is hiring a Tech Lead

About the Role

Sinch is looking for a Tech Lead/Staff Engineer to join our Conversational AI team. You will shape the future of conversational experiences across Sinch products by spearheading the technical vision for a scalable Gen AI-powered bot development platform and leading the design of complex distributed systems.

What You'll Do

  • Spearhead the technical vision and strategy for building a scalable Gen AI-powered bot development platform.
  • Architect, design, and drive the development of complex distributed systems for real-time AI interactions, workflow orchestration, and API integrations.
  • Provide technical guidance to a team of backend, frontend, and AI engineers.
  • Establish, uphold and improve best engineering practices, including high-quality code standards, testing strategies, and CI/CD workflows.
  • Work closely with AI/ML engineers to integrate LLMs and NLP models into the platform efficiently.
  • Guide decisions on scalability, performance, security, and fault tolerance in a high-traffic environment.
  • Lead efforts on observability, monitoring, and debugging complex production issues.
  • Mentor and coach fellow engineers.
  • Collaborate with product managers, designers, and stakeholders to translate business requirements into scalable engineering solutions.
  • Stay ahead of industry trends and drive continuous improvements in technology choices and architecture.

What We're Looking For

  • 8+ years of hands-on software engineering experience.
  • Deep understanding of distributed systems and scalable architectures.
  • Strong expertise in backend development using Node.js and Typescript.
  • Proven experience in leading technical teams and mentoring engineers.
  • Deep understanding of microservices architecture, event-driven systems, and workflow orchestration (e.g., Temporal.io).
  • Strong database expertise, with experience in MongoDB, Cassandra, PostgreSQL, or other distributed databases.
  • Experience designing and deploying highly available, low-latency, fault-tolerant systems.
  • Knowledge of cloud platforms (AWS, GCP, Azure), containerization (Docker, Kubernetes), and CI/CD pipelines.
  • Strong problem-solving, debugging, and analytical skills.
  • Excellent communication and leadership skills, with the ability to collaborate effectively across teams.

Nice to Have

  • Golang expertise as a plus.
  • Experience with AI-driven applications, NLP, or integrating Large Language Models (LLMs).
  • Hands-on experience working with LLM fine-tuning, prompt engineering, or AI safety.
  • Experience with real-time messaging systems (WebSockets, Kafka, RabbitMQ).
  • Frontend architecture experience using React and TypeScript.
  • Contributions to open-source projects or active participation in the tech community.

Technical Stack

  • Backend: Node.js, Typescript, Golang
  • Databases: MongoDB, Cassandra, PostgreSQL
  • Infrastructure: AWS, GCP, Azure, Docker, Kubernetes
  • Platform: Temporal.io, WebSockets, Kafka, RabbitMQ
  • Frontend: React

Benefits & Compensation

  • Health and life insurance
  • Flexible work environment
  • Retirement savings plans

Work Mode

This is a global position.

Sinch is committed to following a recruitment process that is fair, objective, consistent, and equal opportunity.

Required Skills
Node.jsTypescriptGolangMongoDBCassandraPostgreSQLAWSGCPAzureDockerSystem DesignArchitectureTeam LeadershipAgile MethodologiesCloud Infrastructure
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10+ years experience
About company
Sinch

Sinch pioneers customer communications, powering experiences for over 150,000 businesses via mobile messaging, voice, and email through its AI-infused Super Network, APIs, and applications. Sinch Mailgun builds the infrastructure that powers communication at internet scale, delivering billions of emails daily.

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Job Details
Category management
Posted 8 months ago