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- Tasks: Build and maintain high-performance back-end systems for fintech and blockchain solutions.
- Company: Join Kodelab, a leader in fintech innovation with a collaborative culture.
- Benefits: Flexible work environment, competitive salary, and opportunities for growth.
- Other info: Dynamic role with potential for leadership in a fast-paced environment.
- Why this job: Make a real impact on cutting-edge fintech, AI, and blockchain projects.
- Qualifications: 3+ years of back-end development experience, strong database and API skills.
The predicted salary is between 60000 - 80000 £ per year.
At Kodelab, we are shaping the future of fintech, blockchain, and AI-powered solutions. Our back-end infrastructure is the backbone of our success, powering everything from secure financial transactions to AI-driven platforms and Web3 integrations. We are looking for a Back-End Developer who can build and maintain scalable, high-performance systems that keep our fintech ecosystem running seamlessly.
Ensure Security & Reliability – Implement secure authentication, encryption, and data integrity measures for fintech and blockchain solutions.
Optimize Performance & Scalability – Design database structures and caching mechanisms that ensure low-latency and high availability.
Integrate AI & Blockchain Solutions – Work closely with AI and Web3 teams to power machine learning models, smart contracts, and tokenized assets.
Collaborate with Front-End & DevOps Teams – Ensure seamless API integrations, CI/CD deployments, and overall system reliability.
Requirements:
- 3+ Years of Back-End Development Experience – Strong background in high-availability, performance-driven systems.
- Experience with backend frameworks such as Nest.js, Express.js, or FastAPI.
- Strong SQL (PostgreSQL, MySQL) and NoSQL (MongoDB, Redis) expertise.
- Experience in building RESTful & GraphQL APIs, JWT authentication, OAuth, and cryptographic security.
- Ability to optimize database queries, caching strategies, and event-driven architectures (Kafka, RabbitMQ).
- Familiarity with AWS, Docker, Kubernetes, and CI/CD pipelines (Bonus).
- Understanding of blockchain APIs, smart contract interactions, and AI model deployment (Bonus).
Work on high-impact fintech, AI, and blockchain projects with cutting-edge technology. Flexible work environment with opportunities for growth and leadership. If you’re a highly skilled back-end developer looking for a critical role in a fast-paced fintech environment, apply now and power the future of fintech at Kodelab!
Senior Backend Engineer (JavaScript) employer: KodeLab
Contact Detail:
KodeLab Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Senior Backend Engineer (JavaScript)
✨Tip Number 1
Network like a pro! Reach out to folks in the fintech and tech communities, attend meetups, and connect on LinkedIn. You never know who might have the inside scoop on job openings or can refer you directly.
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your projects, especially those involving JavaScript, APIs, and database management. This is your chance to demonstrate your expertise in building scalable systems and integrating AI solutions.
✨Tip Number 3
Prepare for technical interviews by brushing up on your coding skills and system design knowledge. Practice common algorithms and data structures, and be ready to discuss your experience with backend frameworks and security measures.
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you’re genuinely interested in joining our team at Kodelab.
We think you need these skills to ace Senior Backend Engineer (JavaScript)
Some tips for your application 🫡
Tailor Your CV: Make sure your CV is tailored to the role of Senior Backend Engineer. Highlight your experience with JavaScript and any relevant backend frameworks like Nest.js or Express.js. We want to see how your skills align with our fintech and blockchain projects!
Showcase Your Projects: Include specific examples of projects you've worked on that demonstrate your ability to build scalable, high-performance systems. If you've integrated AI or blockchain solutions, let us know! We love seeing real-world applications of your skills.
Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you're passionate about fintech and how you can contribute to our team. Be sure to mention your experience with security measures and API development, as these are key for us.
Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you’re considered for the role. Plus, it shows us you’re keen on joining our team at Kodelab!
How to prepare for a job interview at KodeLab
✨Know Your Tech Stack
Make sure you’re well-versed in the technologies mentioned in the job description, especially JavaScript frameworks like Nest.js and Express.js. Brush up on your SQL and NoSQL database skills, as well as API development techniques. Being able to discuss your experience with these tools confidently will show that you're a perfect fit for the role.
✨Showcase Your Problem-Solving Skills
Prepare to discuss specific challenges you've faced in previous projects, particularly around performance optimisation and scalability. Use examples that highlight your ability to implement secure authentication and data integrity measures. This will demonstrate your hands-on experience and critical thinking skills.
✨Understand the Fintech Landscape
Familiarise yourself with current trends in fintech, blockchain, and AI. Be ready to discuss how these technologies can be integrated into back-end systems. Showing that you have a grasp of the industry will set you apart and prove your enthusiasm for the role.
✨Collaborate and Communicate
Since collaboration with front-end and DevOps teams is key, prepare to talk about your experience working in cross-functional teams. Highlight any successful projects where you ensured seamless API integrations or CI/CD deployments. Good communication skills are essential, so be ready to demonstrate how you can work effectively with others.