Backend Engineer

1 week ago


Greater London, United Kingdom Pantera Capital Full time

About xAI xAI’s mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge. Our team is small, highly motivated, and focused on engineering excellence. This organization is for individuals who appreciate challenging themselves and thrive on curiosity. We operate with a flat organizational structure. All employees are expected to be hands‑on and to contribute directly to the company’s mission. Leadership is given to those who show initiative and consistently deliver excellence. Work ethic and strong prioritization skills are important. All engineers are expected to have strong communication skills. They should be able to concisely and accurately share knowledge with their teammates. About the team In this role you will work on xAI's production systems that power grok.com and the API. The actual team matching will happen at the offer stage. About the role As an ideal candidate you have a good understanding of how highly scalable and reliable production infrastructure is built. You strive for perfection and listen carefully to your users in order to solve any pain points they might experience. Most of our backend infrastructure is written in Rust. So familiarity with a compiled language such as C++, Rust, or Go is highly beneficial. Expert knowledge of either Rust or C++ Experience in designing, implementing, and maintaining reliable and horizontally scalable distributed systems Knowledge of service observability and reliability best practices Experience in operating commonly used databases such as PostgreSQL, Clickhouse, and MongoDB Additionally, any of the below points will help a candidate stand out: Expert knowledge of Python Experience with Docker, Kubernetes, and containerized applications Expert knowledge of TypeScript Expert knowledge of gRPC (unary, response streaming, bi-directional streaming, REST mapping) Hands‑on experience with LLM APIs, embeddings, or RAG patterns Track record of delivering user‑facing software at scale Interview process After submitting your application, the team reviews your statement of exceptional work and CV. If your application passes this stage, you will be invited to a 15 minute interview ("phone interview") during which a member of our team will ask some basic technical questions. If you clear the initial phone interview, you will enter the main process, which consists of at least two technical interviews: Coding interview in Rust or C++. Distributed systems design interview. Benefits Base salary is just one part of our total rewards package at xAI, which also includes equity, comprehensive medical, vision, and dental coverage, access to a pension plan, short & long-term disability insurance, life insurance, and various other discounts and perks. xAI is an equal opportunity employer. California Consumer Privacy Act (CCPA) Notice #J-18808-Ljbffr


  • Backend Engineer

    5 days ago


    Greater London, United Kingdom Recruiting From Scratch Full time

    Who is Recruiting from Scratch: Recruiting from Scratch is a specialized talent firm dedicated to helping companies build exceptional teams. We partner closely with our clients to deeply understand their needs, then connect them with top‑tier candidates who are not only highly skilled but also the right fit for the company’s culture and vision. Our...

  • Backend Engineer

    2 days ago


    Greater London, United Kingdom BLACK TREE GAMING LIMITED Full time

    Join to apply for the Backend Engineer role at BLACK TREE GAMING LIMITED. Location: Remote with the UK or Europe Salary range: £50,000 - £60,000 - compensation outside the UK will be adjusted based on location. Please note: We are unable to sponsor international visas at this time. Our Role We’re looking for a Backend Engineer to join our backend...


  • Greater London, United Kingdom Go City® Full time

    Company Overview Go City is transforming the way people see and experience the world’s greatest destinations. Position Overview As a Software Engineer at Go City, you will play a crucial role in developing innovative and robust backend systems that enhance customer city experiences. Your role involves close collaboration with the Engineering and Product...


  • Greater London, United Kingdom Xact Placements Limited Full time

    OverviewSenior Backend Engineer | High-Growth Cybersecurity Scale-Up | Fully Remote (Global)Are you ready to build the core systems that power one of the fastest-growing cybersecurity platforms on the planet?This is your chance to join a research-driven, venture-backed security scale-up that’s trusted by some of the world’s biggest enterprises and...


  • Greater London, United Kingdom Understanding Recruitment Full time

    Senior Backend Engineer – AI transforming the future Location: Hybrid in London approx. 1-2 days a week (flexible work hours) Compensation: Up to £105k + bonus + equity We are very excited to have just partnered with a rapidly rising AI infrastructure company that’s transforming how development and QA teams create, manage, and test high-quality data at...

  • Backend Engineer

    1 week ago


    London, United Kingdom TechChain Talent Full time

    Backend Engineer (on-site/London) - up to £260k A high-growth blockchain infrastructure company is building the next generation of ultra-fast trading and digital asset platforms, and were looking for an exceptional Backend Engineer to join the London team onsite. If you thrive in high-performance environments, love tackling complex engineering challenges,...

  • Backend Engineer

    2 days ago


    Greater London, United Kingdom ClearScore Full time

    Mid Level Backend Engineer ClearScore is searching for a talented backend engineer to join our growing engineering team. You will influence the direction of critical ClearScore services and tools that allow us to scale rapidly. Within a couple of days of joining, you will deploy your code to production affecting millions of users globally and write new...

  • Backend Engineer

    1 week ago


    Greater London, United Kingdom Inforcer Full time

    About Us inforcer is a leading provider of innovative solutions in the cybersecurity sector and dedicated to enhancing efficiency, improving security and driving success for our clients. We focus on providing MSPs with fundamental tools and technology they need to manage Microsoft Security policies for multiple tenants in a simple and effective way. Our...

  • Backend Engineer

    1 week ago


    London, Greater London, United Kingdom TechChain Talent Full time £260,000 per year

    Backend Engineer (on-site/London) - up to £260kA high-growth blockchain infrastructure company is building the next generation of ultra-fast trading and digital asset platforms, and were looking for an exceptional Backend Engineer to join the London team onsite.If you thrive in high-performance environments, love tackling complex engineering challenges, and...

  • Backend Engineer

    1 week ago


    London, Greater London, United Kingdom TechChain Talent Full time £260,000 per year

    Backend Engineer (on-site/London) - up to £260k A high-growth blockchain infrastructure company is building the next generation of ultra-fast trading and digital asset platforms, and were looking for an exceptional Backend Engineer to join the London team onsite. If you thrive in high-performance environments, love tackling complex engineering challenges,...