Back-End Developer

Full-time London, UK

🛠️ Job Description

We are looking for a talented Backend Developer to join the Geniux team. You’ll be responsible for building robust, scalable, and secure backend systems that support our high-impact solutions across finance, telecom, and energy sectors. You’ll collaborate closely with our frontend, product, and DevOps teams to ensure seamless and performant infrastructure behind every user experience.

🔍 Responsibilities

  • Design and implement scalable backend systems and APIs

  • Build distributed services using Python, Node.js, or similar technologies

  • Collaborate with frontend developers to connect user-facing elements to backend logic

  • Optimize applications for speed, security, and fault tolerance

  • Develop serverless architectures within cloud environments (preferably AWS)

  • Write clean, efficient, and well-documented code

  • Monitor backend performance and troubleshoot production issues

  • Participate in architectural discussions and backend system planning

Job Requirements

  • 5+ years of experience in backend development

  • Strong proficiency in Python, Node.js, or similar languages

  • Solid experience with distributed systems and microservices

  • Familiarity with cloud platforms and serverless computing (AWS preferred)

  • Strong grasp of RESTful API development and integration

  • Experience with CI/CD pipelines and version control tools like Git

  • Analytical mindset with attention to detail

  • Excellent communication and collaboration skills

Nice to Have

  • Experience with SQL and NoSQL databases

  • Knowledge of smart contract languages such as Solidity

  • Experience designing secure systems

  • Familiarity with containerization and orchestration (e.g., Docker, Kubernetes)

🎓 Education & Experience

Bachelor’s degree in Computer Science, Software Engineering, or a related discipline — or equivalent hands-on experience.

💼 Our Benefits

  • Flexible working hours

  • Unlimited Paid Time Off (PTO)

  • Comprehensive health insurance

  • Career growth and upskilling opportunities

  • A culture of trust, collaboration, and innovation

🚀 Why Join Geniux?

At Geniux, we build powerful backend foundations that support next-generation technologies. If you’re excited about solving complex problems and contributing to impactful projects in a fast-moving environment — you’ll feel right at home with us.

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