Senior Backend Engineer, TypeScript

Software Mind

Senior Backend Engineer developing scalable, high-performance backend systems for a leading UK organization. Collaborative role in building data architecture with TypeScript technologies.

Posted 6/12/2026full-timeRemote • 🇵🇱 PolandSeniorWebsite

Tech Stack

Tools & technologies

Distributed SystemsGRPCJavaScriptKafkaMicroservicesNode.jsPostgresTypeScript

About the role

Key responsibilities & impact

Join an innovative digital platform, building scalable, high-performance backend systems.
Part of a collaborative, cross-functional team focused on creating a solid, well-governed data foundation and backend architecture.
Design and develop high-load backend services using TypeScript, Bun.js, and Nest.js.
Build and maintain a robust, scalable data architecture, ensuring proper data storage, structure, and documentation.
Integrate backend services using gRPC and manage inter-service communication via protobuf contracts.
Implement event-driven solutions with message brokers such as Nats.io, Kafka, or SQS.
Work with analytical (ClickHouse) and transactional (PostgreSQL) databases to optimize queries and ensure data reliability.
Integrate with third-party systems including Auth0, Stripe, Sanity CMS, HubSpot, Algolia, and external APIs (e.g., Google Places).
Ensure strong data governance: define data structures, storage strategies, and maintain comprehensive documentation.

Requirements

What you’ll need

Proven commercial experience in backend development with TypeScript and Node.js.
Hands-on experience with Nest.js or similar backend frameworks.
Solid understanding of microservices architecture and distributed systems.
Experience with PostgreSQL: indexes, transactions, and query optimization.
Practical experience with message brokers, preferably Kafka.
Familiarity with gRPC and building APIs for inter-service communication.
Understanding of event-driven architecture principles.
Ability to write clean, maintainable, and type-safe code with a focus on scalability.
Experience with Bun.js in production or personal projects.
Hands-on experience with ClickHouse for analytical workloads.
Experience building high-load systems and real-time or near-real-time data pipelines.
Familiarity with observability tools: logs, metrics, and distributed tracing.
Understanding of DDD, CQRS, and Clean Architecture patterns.

Benefits

Comp & perks

Flexible employment and remote work
International projects with leading global clients
International business trips
Non-corporate atmosphere
Language classes
Internal & external training
Private healthcare and insurance
Multisport card
Well-being initiatives

ATS Keywords

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Hard Skills & Tools

TypeScriptNode.jsNest.jsPostgreSQLKafkagRPCBun.jsClickHouseevent-driven architecturemicroservices architecture

Soft Skills

collaborationcommunicationproblem-solvingdocumentationscalability focusdata governance