Senior Java Developer (IR-482)

Intellectsoft; United Kingdom; Hybrid; GBP 100,000 - 125,000; Full time

Job summary

A technology solutions provider in the UK is seeking an experienced Backend Developer to join their fintech team. In this role, you will develop a mobile-first custodial trading app, leveraging your expertise in Java, Micronaut, and AWS. You will lead the design and maintenance of high-performance applications, contribute to product architecture, and participate in the full software development lifecycle. This opportunity comes with flexible working hours and the chance to work on impactful projects.

Benefits

Flexible hours & work setup

Team-building events

Udemy courses of your choice

Career development opportunities

Work-life balance support

Qualifications

• 7+ years of experience in backend development.
• Expertise in Java and microservices using Micronaut.
• Proficiency with AWS services and database technologies.

Responsibilities

• Lead design and development of Java applications.
• Leverage GraalVM for performance optimizations.
• Participate in the full software development lifecycle.

Skills

Backend development experience

Expert knowledge of Core Java

Hands-on experience with Micronaut

Familiarity with GraalVM

Proficiency in AWS services

Experience with microservices architecture

Strong SQL proficiency

Agile/Scrum methodologies

Version control with Git

CI/CD tools experience

Tools

PostgreSQL

DynamoDB

Docker

Kubernetes

Job description

Intellectsoft is a software development company delivering innovative solutions since 2007. We operate across North America, Latin America, the Nordic region, the UK, and Europe. We specialize in industries like Fintech, Healthcare, EdTech, Construction, Hospitality, and more, partnering with startups, mid-sized businesses, and Fortune 500 companies to drive innovation and scalability. Our clients include Jaguar Motors, Universal Pictures, Harley-Davidson, and many more where our teams are making daily impactTogether, our team delivers solutions that make a difference. Learn more at www.intellectsoft.net/

Our client is a UK-based fintech company that aims to bridge the gap between traditional finance and decentralized finance. Its primary goal is to provide "Global Assets On-Chain" by allowing users to gain exposure to real-world financial instruments without needing a traditional brokerage account.

You will join our dedicated team to develop a mobile-first custodial trading app that lets users buy/sell tokenized securities and crypto in seconds with instant settlement, easy transferability, and a clean, beginner-friendly interface.

• 7+ years of experience in the Backend development of complex web and mobile apps using Java with a proven track record of delivering high-quality, enterprise-scale systems.
• Expert knowledge of Core Java concepts, including object-oriented programming (OOP), data structures, algorithms, multi-threading, and memory management.
• Hands-on experience with the Micronaut framework for building efficient and scalable microservices.
• Familiarity with GraalVM and native image generation for performance tuning is highly desirable.
• Proficiency in AWS SQS, S3 and DynamoDB for data handling and messaging. Ability to use Athena for data analysis and CloudWatch for logs and monitoring.
• Experience with other relevant frameworks such as Spring Boot is a plus.
• Proficiency in database technologies (e.g., PostgreSQL, Oracle, MySQL, NoSQL) and writing efficient SQL queries.
• Strong understanding of microservices architecture, RESTful APIs, and experience with messaging systems (e.g., Kafka, RabbitMQ).
• Previous commercial experience working within the financial services industry, understanding security protocols and specific domain challenges (low latency, high throughput).
• Experience with Agile/Scrum methodologies, version control systems (Git), and CI/CD tools (Jenkins, Docker, Kubernetes).
• Strong analytical, problem-solving, and critical thinking skills, along with excellent communication and collaboration abilities

Responsibilities

• Lead the design, development, and maintenance of scalable and high-performance Java applications and microservices using Micronaut.
• Leverage GraalVM for ahead-of-time (AOT) compilation to create native images, significantly optimizing application startup time and reducing memory footprint, crucial for fintech applications.
• Contribute to the evolution of product architecture, ensuring system resilience, reliability, and security within a complex financial infrastructure.
• Participate in the full software development lifecycle, including testing (unit, functional, integration), debugging, and deploying applications through CI/CD pipelines.
• Lead features from design to production.
• Take part in influencing the evolution of product architecture.
• Participate in influencing product development and growth.
• Take part in ever-improving the product delivery life-cycle.

• Awesome projects with an impact
• Udemy courses of your choice
• Team-buildings, events, marathons & charity activities to connect and recharge
• Workshops, trainings, expert knowledge-sharing that keep you growing
• Clear career path
• Absence days for work-life balance
• Flexible hours & work setup - work from anywhere and organize your day your way