Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Backend Engineer (MERN Stack)

Full-time

Mimica

Your mission

In this role, your mission will be to enhance and scale the backend systems powering the Mimica platform ( MERN stack). This means designing and implementing a scalable architecture, developing and optimizing backend services and APIs, improving the performance and reliability of existing components, and taking operational responsibility for what you build. As a member of our early engineering team, you‘ll have the opportunity to shape our technical direction, processes and culture.

Part of your day-to-day

  • Contributing to architectural decisions and collaborating across teams to identify and implement product improvements.
  • Developing and optimizing a real-time backend service that enables multiple users to edit graph data and re-train AI models through their input.
  • Creating libraries and building APIs in our Node.js backend to interact with the various ML components of the system.
  • Diagnosing fault-tolerance and availability issues, as well as performance bottlenecks, and resolving them.
  • Refactoring our components and services and producing documentation for your implementations.
  • Providing feedback to peers through pair programming and code reviews and helping those around you to level up.
  • Participating in hiring and onboarding new team members; taking on end-to-end project management responsibilities as we grow.

What you will bring

  • Background in backend engineering, focusing on developing high-performance production software and scalable architectures.
  • Minimum 8 years of experience as a Software Engineer.
  • Proficiency in JavaScript/TypeScript , and experience using modern frameworks and technologies (e.g., Docker, K8s) to build high-throughput, low-latency systems.
  • Practical experience in designing APIs and managing databases (e.g., PostgreSQL, MongoDB), with a keen eye for query optimization and efficient data storage & handling.
  • Firm grasp of distributed systems concepts and techniques – microservices, load balancing, caching, horizontal/vertical scaling and stateless architectures.
  • Commitment to upholding high engineering standards , prioritizing code quality, maintainability, reliability, and security.
  • Strong analytical and troubleshooting skills – methodically decomposing systems to identify bottlenecks, determine root causes and implement effective solutions.
  • Drive to continually develop your skills, improve team processes and reduce debt.
  • Fluency in English, with effective communication skills – articulating complex ideas, concepts, and trade-offs clearly.

Bonus

  • Experience owning projects from start to finish, including speccing, architecture, development, testing, deployment, release and monitoring.
  • Experience working within an international high-impact Startup/Scale-up environment – delivering value quickly and iteratively.
  • Active interest in AI, automation, or related fields.

We’d love to hear from you, even if you feel you don’t quite have all of the above.

Vacancy posted 19 days ago
Similar jobs that could be interesting for youBased on the Backend Engineer (MERN Stack) in United Kingdom vacancy
  •  ...role, your mission will be to enhance and scale the backend systems powering the Mimica platform ( MERN stack). This means designing and implementing a scalable...  ...for what you build. As a member of our early engineering team, you‘ll have the opportunity to shape our technical... 
    Suggested
    Full time

    Mimica

    United Kingdom
    12 days ago
  •  ...cryptographically secured identity, improving engineering velocity while maintaining security. We...  ...We are looking for product focused full stack engineers to work on Teleport itself. You will build the user interfaces and backend APIs to implement them for all parts of... 
    Suggested
    Full time
    Remote work

    Teleport

    United Kingdom
    12 days ago
  •  ...Senior Full Stack Engineer The Role - What will you be doing?  Key Responsibilities and Duties Join a rapidly growing team to help...  ...release, support and maintain complex financial platforms. Our backend is written in Node driven by SQL databases and our front-end... 
    Suggested
    Full time

    BCB Group

    United Kingdom
    5 days ago
  •  ...The Role: We’re looking for Senior Full Stack Engineers to design and build the systems that power tem's core products and internal platforms. We’re hiring across several teams - including Developer Experience, Billing & Payments, Buy-Side Growth, Sell-Side Growth, and... 
    Suggested
    Full time

    tem

    United Kingdom
    25 days ago
  •  ...the role ElevenLabs' product dashboard has three modes — ElevenAgents, ElevenCreative, and ElevenAPI. We're looking for a Full-Stack Engineer to take ownership of the ElevenAPI side: the developer-facing dashboard used by everyone building on top of ElevenLabs. We'... 
    Suggested
    Full time

    ElevenLabs

    United Kingdom
    12 days ago
  •  ...builders doing the best work of their lives. We are researchers, engineers, and operators. IOI medalists and ex-founders. If you want to...  ...-working stipend. About the role We are looking for Full-Stack engineers to develop and maintain both front-end and back-end components... 
    Full time
    Immediate start
    Remote work

    Valor Capital Group

    United Kingdom
    10 days ago
  •  ...We are looking for a Senior Shopify Full Stack Developer with deep expertise in the Shopify...  ...-stack applications with Shopify as the backend and modern front-end frameworks (Next.js,...  .... Comfortable mentoring other engineers and leading by example. Passionate about... 
    Full time

    Remote Talent LATAM

    United Kingdom
    27 days ago
  •  ...What we're building Jiga is on a mission to help engineers build physical products faster. Think npm install for mechanical engineers...  ...how to build it, and when to ship it. You're genuinely full-stack - you're equally happy building a slick UI component or... 
    Work at office
    Remote work

    Jiga

    United Kingdom
    14 days ago
  •  ...how the product scales. You'll join a team that values engineering fundamentals, product thinking, and a culture where...  ...not just execution. What We’re Looking For Strong full-stack engineering experience - Deep backend experience in Java , Node.js , or another modern... 
    Full time

    MyEdSpace

    United Kingdom
    12 days ago
  •  ...how the product scales. You'll join a team that values engineering fundamentals, product thinking, and a culture where...  ...execution. What We’re Looking For Strong full-stack engineering experience – Deep backend experience in Java , Node.js , or another modern... 
    Full time
    Local area

    MyEdSpace

    United Kingdom
    18 days ago
  •  ...beautifully designed frontends and scalable backends. You'll tackle the big questions: How do...  ...: Owning features across our full stack, writing clean code for both frontend...  ..., ambitious and skilled full-stack engineers who can drive our business with technical... 
    Contract work
    Internship
    Immediate start
    Remote work
    Worldwide

    Software Engineering

    United Kingdom
    more than 2 months ago
  •  ...protect, optimize, and transform biomaterials engineering for industrial manufacturing at scale....  ...architectures, and deploy robust full-stack platforms globally. Position Overview...  ...microservices cleanly natively leveraging Node.js backend environments, and commands secure... 
    Full time
    Work at office
    Remote work
    Work from home
    Home office
    Shift work

    Natural Negative

    United Kingdom
    a month ago
  •  ...As a Senior Backend Engineer in GitLab’s Platform Enablement organization, you will help make GitLab easier to deploy, validate, and operate across environments. You’ll help shape GitLab’s next generation of self-managed deployment guidance as Reference Architectures... 
    Full time

    GitLab

    United Kingdom
    12 days ago
  •  ..., and AI agent a cryptographically secured identity, improving engineering velocity while maintaining security. We make trusted computing...  ...for an AI world. About the Role We are looking for product focused full stack engineers to work on Teleport itself. You will build...
    Full time
    Remote work

    Teleport

    United Kingdom
    12 days ago
  •  ...the role ElevenLabs' product dashboard has three modes — ElevenAgents, ElevenCreative, and ElevenAPI. We're looking for a Full-Stack Engineer to take ownership of the ElevenAPI side: the developer-facing dashboard used by everyone building on top of ElevenLabs. We're looking... 
    Full time

    ElevenLabs

    United Kingdom
    12 days ago
  • About This Role We are looking for a Senior Shopify Full Stack Developer with deep expertise in the Shopify ecosystem, a strong grasp of headless architecture, and experience leading enterprise-scale development initiatives. You'll be responsible for building scalable,... 
    Full time

    Remote Talent LATAM

    United Kingdom
    12 days ago
  • £91k - £114k per year

     ...including Prometheus , Mimir , Loki , and Tempo - without the overhead of installing, maintaining and scaling their own observability stack. What You’ll Be Doing: Take an active role in influencing our roadmap and your own career objectives Work with your team to deliver... 
    Full time

    Grafanalabs

    United Kingdom
    12 days ago
  •  ...will design and build the core on-chain and backend systems that power a perpetual exchange,...  ...operate as a cohesive, low-latency stack ~ Optimize systems for latency, throughput...  ...Previous work experience with matching engines, order books, or execution systems Perpetuals... 
    Work experience placement
    Remote work

    Ergonia

    United Kingdom
    2 days ago
  •  ...production rollout. Design and implement backend architecture changes that support Coder'...  ...~5+ years of professional software engineering experience, including significant production...  ...latest developer tooling. Our tech stack Backend: Go , Postgres , GCP... 
    Full time

    Coder

    United Kingdom
    3 days ago
  • £91k - £114k per year

     ...of installing, maintaining and scaling their own observability stack. What You’ll Be Doing: Take an active role in influencing our...  ...a large distributed system As we are remote-first and our engineering organization is largely remote, we provide guidance and meet regularly... 
    Full time
    Local area
    Remote work

    Grafanalabs

    United Kingdom
    24 days ago
  •  ...About the Role: As a Backend Engineer, you'll collaborate directly with the CTO to architect and build the core infrastructure of Pod. This is a high-impact role where you’ll shape the foundation of a platform designed to push the boundaries of decentralized applications... 
    Remote job
    Full time

    Pod Network

    United Kingdom
    3 days ago
  •  ...role This is a high-impact Fullstack Engineer opportunity to build and own a new internal...  ...using React/TypeScript and established backend web frameworks Integrate the frontend...  ...example Next.js or similar) Some full-stack exposure, including working close to backend... 
    Full time
    Internship
    Work at office
    Work from home

    Wayve

    United Kingdom
    21 days ago
  • As a Senior Backend Engineer in GitLab’s Platform Enablement organization, you will help make GitLab easier to deploy, validate, and operate across environments. You’ll help shape GitLab’s next generation of self-managed deployment guidance as Reference Architectures evolve... 
    Full time

    GitLab

    United Kingdom
    12 days ago
  •  ...technology leaders worth following globally. Position Overview We are seeking a highly analytical, systems-minded Senior Backend Engineer (Go) to join an elite group of core technologists building our next-generation AI Data Asset Management platform in a full-time... 
    Hourly pay
    Daily paid
    Full time
    Contract work
    For contractors
    Freelance
    Remote work
    Work from home

    CloudFactory

    United Kingdom
    a month ago
  •  ...About the Role We are hiring a Software Engineer - Backend to join the Funds Transfers team. Join the team powering the financial heartbeat...  ..., this is where you’ll make it matter. The Team Tech Stack Java, Spring Boot AWS cloud services PostgreSQL Kafka... 
    Full time

    Pliant

    United Kingdom
    23 days ago
  •  ...The Role As a Senior Software Engineer in the Acquisition Squad, you will be the driving force behind the key application and...  ..., and reliable code is shipped across our acquisition stack. Heavily Backend-Weighted: Your day-to-day focus will be heavily centered on... 
    Full time

    Butternut Box

    United Kingdom
    12 days ago
  •  ...ARQ is the place to do it. What we're looking for As a Backend Engineer, you’ll design, develop, and maintain scalable, secure, and...  ...management, transactions booking, crypto liquidity) Our technology stack is based predominantly on Java 25 on the backend with... 
    Full time
    Work at office
    3 days per week

    ARQ ( Prev DolarApp )

    United Kingdom
    10 days ago
  •  ...Role This is a cloud-based software engineering role for a product-minded engineer who enjoys...  ...who are comfortable moving across the stack to solve customer problems. You will...  ...the stack including infrastructure, backend services, APIs and frontend development,... 
    Full time
    Work at office
    Work from home

    Wayve

    United Kingdom
    16 days ago
  •  ...About the role LemFi is the financial engine for people the world wasn't built to serve...  ...: Kubernetes, CI/CD, observability stacks, IaC, and the judgement to know when to use...  ...Proficient in at least one scripting or backend language (Python, Go, or equivalent) and... 
    Full time
    Immediate start

    LemFi

    United Kingdom
    10 days ago
  •  ...specifically looking for product-oriented engineers who will own the autonomy performance bar...  ...influence across the teams shaping the stack. This is primarily hands-on IC, with a clear...  ...fixes land across model, robot software, backend, and evaluation tooling Lead cross-... 
    Full time
    Work at office
    Work from home

    Wayve

    United Kingdom
    13 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Backend Engineer (MERN Stack). Be the first to apply!