[GBL] Senior Backend Engineer (TypeScript)

Posted Yesterday
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Hiring Remotely in Kraków, Małopolskie, POL
In-Office or Remote
Senior level
Software
The Role
Build and design high-load backend services in TypeScript using Bun.js and Nest.js. Create scalable data architectures, integrate services with gRPC/protobuf and message brokers (Kafka/Nats/SQS), work with ClickHouse and PostgreSQL, and connect third-party systems (Auth0, Stripe, Sanity, HubSpot, Algolia). Ensure data governance, documentation, and type-safe, maintainable code for event-driven, distributed systems.
Summary Generated by Built In
Company Description

Software Mind develops solutions that make an impact for companies around the globe. Tech giants & unicorns, transformative projects, emerging technologies and limitless opportunities – these are a few words that describe an average day for us. Building cross-functional engineering teams that take ownership and crave more means we’re always on the lookout for talented people who bring passion and creativity to every project. Our culture embraces openness, acts with respect, shows grit & guts and combines employment with enjoyment.

Job Description

 

Project – the aim you’ll have

Join an innovative digital platform, building scalable, high-performance backend systems. You'll be part of a collaborative, cross-functional team focused on creating a solid, well-governed data foundation and backend architecture. Working with modern TypeScript technologies and event-driven systems, you'll help deliver trusted, scalable solutions that power personalized member experiences. The client is a leading UK-based organization investing in next-generation technology to transform its digital ecosystem.

Position – how you’ll contribute

  • 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.

Qualifications

 

Expectations – the experience you 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.

 

Additional skills – the edge you have

  • 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.

Additional Information

Our offer – professional development, personal growth:

  • 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 

Position at: Software Mind Poland

Skills Required

  • Commercial backend development experience 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 including indexes, transactions, and query optimization
  • Practical experience with message brokers (Kafka preferred)
  • Familiarity with gRPC and building inter-service APIs using protobuf
  • Understanding of event-driven architecture principles
  • Ability to write clean, maintainable, type-safe code focused 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, distributed tracing
  • Familiarity with DDD, CQRS, and Clean Architecture patterns
  • Experience integrating with third-party systems (Auth0, Stripe, Sanity CMS, HubSpot, Algolia, Google Places)

Software Mind Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Software Mind and has not been reviewed or approved by Software Mind.

  • Fair & Transparent Compensation Pay is considered competitive for core hiring markets, with “good salary” cited in multiple locales. Public salary snapshots provide a baseline that helps candidates assess offers and negotiations.
  • Flexible Benefits Remote or hybrid options are prominently highlighted, and a remote‑work program is publicly noted alongside positively cited work‑from‑home experiences. Flexibility around schedules and location is presented as part of the package.
  • Wellbeing & Lifestyle Benefits Private medical care, language classes, sports/fitness support, and learning initiatives are listed for several Central/Eastern European locations, with occasional workation perks promoted. These lifestyle‑oriented offerings complement base pay and can enhance perceived total rewards.

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The Company
HQ: Cracow
1,000 Employees
Year Founded: 1999

What We Do

Software Mind is a global digital transformation partner with operations throughout Europe, the US and LATAM. Driven by tech and empowered by people, we provide companies with software engineers and autonomous, cross-functional development teams who manage software life cycles from ideation to release and beyond. For over 20 years we’ve been enriching organizations with the talent they need to boost scalability, drive dynamic growth and bring disruptive ideas to life. Our top-notch engineering teams combine ownership with leading technologies, including cloud, AI, data science and embedded software to accelerate digital transformations and boost software delivery. A culture, driven by trust, that embraces openness, craves more and acts with respect enables our experts to create evolutive solutions that support scale-ups, unicorns and enterprise-level companies around the world.

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