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Merchstack is looking for an experienced backend engineer to help architect, build, and evolve our SaaS product on the backend. We’re seeking engineers who think about UI/UX in terms of systems, reuse, flexibility, and performance.


To succeed in this role, you will need a breadth of experience working in modelling data structures for data-rich applications, a passion for object-oriented design patterns and an unparalleled ability to think about individual work items, holistically across the design of the entire application.

We are looking for candidates in the UK/EU, India or Africa. All candidates MUST be able to overlap most of your day with leadership in the UK.

Salary Range: $60 - $80k


What you’ll do

  • Design and implement new GraphQL queries and mutations to either meet customer demand or UI/UX requirements.
  • Contribute to the overall stability and performance of our application.
  • Optimize our application for maximum speed and scalability.
  • Build new data providers for Merchstack in the form of composable plugins.
  • Take ownership of dependencies in our code base i.e. ensuring that we are reasonably patched.
  • Work with the VP of Engineering to plan out new prospective pieces of work ahead of time, such as architectural design and infrastructure requirements.
  • Work with DevOps / DBA functions to ensure that new and existing features are being backed and observed by appropriate hardware/infrastructure.

The Stack

  • Typescript, NestJS
  • SQL / TypeORM
  • Apollo GraphQL
  • ElasticSearch
  • Redis
  • AWS / Elastic Kubernetes Service

What we look for

  • 4+ years building object-oriented data-driven applications at scale.
  • Confident in leveraging relational data sources at scale, this includes but is not limited to a deep understanding of data cardinality, data structures and efficient client-side memory management for large datasets and fast-moving dimensions.
  • Experience leveraging IoC containers for dependency injection, with a full understanding of the 3 main dependency injection lifecycles.
  • Advanced Typescript knowledge and desire to use more advanced Typescript concepts to reduce boiler-plate.
  • Will not write O(n!) code.
  • Good understanding of Internet protocols: TCP/IP, HTTP, WebSocket and demonstratable web performance tuning skills
  • Knowledge of the software development lifecycle (version control, tooling, testing, etc.)
  • An active Github account, showcasing your own projects
  • Deep experience leveraging ORMs for data modelling and data access concerns. Should understand both the pros and cons of using an ORM vs. raw queries.
  • Has worked with one or all of the following: NestJS, TypeORM, Apollo GraphQL

Bonus points

  • Any experience in another exclusively OOP C-like language, for instance: C# or Java.
  • Elasticsearch
  • Functional understanding of service-based architecture.
  • Packaging container-based applications with an emphasis on small footprints.

About you

  • You are detail-oriented and focus on delivering seamless, reliable experiences.
  • You care about code quality and are committed to writing strongly typed, well-tested code.
  • You are intrinsically motivated, able to manage your time, and enjoy working with a distributed team across the globe.
  • You believe in asking for help and helping others when they ask, never throwing a problem over the wall
  • You approach problems with curiosity, creativity, and flexibility.
  • You strive to foster relationships in order to ensure healthy debate.
  • You show gratitude and give back.

About Merchstack


Merchstack partners with companies on their journey to build, launch, and scale modern eCommerce stores. We work with market-leading technologies and our own internal products to help our customers achieve ambitious digital experiences and unlock new growth opportunities. We are a remote-only company with employees all over the world, including the Philippines, the United States, Canada, Spain, and the United Kingdom. We are a small team with big ambitions and value people who are driven towards delivery and thrive on autonomy and trust.

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