Net Developer jobs in United Kingdom

You will be at the heart of BlackRock's Aladdin, building the platform that drives our and our client’s investment and trading operations. Each day, you will design, develop, and maintain scalable web applications and high-performance APIs, collaborating closely with traders, product managers, and fellow engineers to define requirements and deliver impactful solutions.

Your role will involve troubleshooting technical challenges, optimizing microservices and data pipelines, and continuously researching new technologies to enhance system performance. By mentoring junior engineers and contributing to our team culture, you’ll help ensure the reliability, security, and efficiency of mission‑critical trading systems in a dynamic, fast‑paced environment.

• Design, develop, and maintain scalable web applications and backend services to support trading operations.
• Collaborate with cross‑functional teams including traders, product managers, and other engineers to define requirements and deliver solutions.
• Implement and optimize high‑performance APIs, microservices, and data processing pipelines.
• Ensure best practices in code quality, testing, deployment, and security.
• Troubleshoot and resolve technical issues across the full stack with a focus on reliability and efficiency.
• Continuously research and adopt new technologies to improve team productivity and system performance.
• Mentor junior engineers and contribute to a positive, innovative team culture.

• Bachelor’s or master’s degree in computer science, Engineering, or a related technical field.
• Minimum 7 years’ proven experience as a Full Stack Engineer, preferably in trading, finance, or similarly complex environments.
• Strong proficiency in modern web frameworks (such as React, Angular, or Vue)
• Proven experience with object‑oriented programming languages such as Java 17+ or TypeScript
• Expertise in designing and maintaining RESTful APIs and GraphQL APIs
• Experience working with databases SQL and NoSQL (Cassandra, Ignite).
• Experience with cloud platforms (AWS, Azure, or GCP), containerization (Docker, Kubernetes), and CI/CD pipelines.
• Ability to communicate complex technical concepts clearly to both technical and non‑technical stakeholders.
• Strong understanding of software development life cycle, agile methodologies, and best engineering practices.
• Strong understanding of design patterns in an enterprise environment.
• Excellent problem‑solving skills and an analytical mindset.

• Prior experience working in trading or financial services technology teams.
• Knowledge of market data feeds, trading protocols, and low‑latency systems.
• Familiarity with data analytics and visualization tools.
• Experience working with Spring Framework and Spring Boot web services.
• Fostering a collaborative environment and driving projects to successful completion.
• Strong leadership and mentorship skills are essential to guide team members and support their professional growth.
• Experience leading and managing a team of engineers

• The chance to make a real impact in a global trading environment.
• A collaborative, inclusive team with a focus on professional growth and technical excellence.
• Opportunities to work with cutting‑edge technologies and complex problem domains.
• Support for ongoing training, certification, and career progression.

If you are a seasoned Full Stack Engineer passionate about building world‑class trading systems and eager to work with a team that values innovation and quality, we would love to hear from you.

You will be working on BlackRock's investment operating system called Aladdin. Aladdin is used both internally within BlackRock and externally by many financial institutions. Aladdin combines sophisticated risk analytics with comprehensive portfolio management, trading, and operations tools on a single platform to power informed decision‑making and create a connective tissue for thousands of users investing worldwide.

Our trading engineering team is a highly skilled, collaborative group of technology professionals dedicated to building robust solutions that empower our trading business. We operate at the intersection of finance and technology, designing systems that ensure reliability, speed, and scalability in a global trading environment. The team is known for its innovative mindset, problem‑solving abilities, and passion for delivering high‑quality software that drives real business outcomes. We foster a culture of continuous learning, open dialogue, and technical excellence, making us a hub for ambitious engineers eager to make a tangible impact.

To help you stay energized, engaged and inspired, we offer a wide range of employee benefits including: retirement investment and tools designed to help you in building a sound financial future; access to education reimbursement; comprehensive resources to support your physical health and emotional well‑being; family support programs; and Flexible Time Off (FTO) so you can relax, recharge and be there for the people you care about.

BlackRock’s hybrid work model is designed to enable a culture of collaboration and apprenticeship that enriches the experience of our employees, while supporting flexibility for all. Employees are currently required to work at least 4 days in the office per week, with the flexibility to work from home 1 day a week. Some business groups may require more time in the office due to their roles and responsibilities. We remain focused on increasing the impactful moments that arise when we work together in person with our commitment to performance and innovation. As a new joiner, you can count on this hybrid model to accelerate your learning and onboarding experience here at BlackRock.

At BlackRock, we are all connected by one mission: to help more and more people experience financial well‑being. Our clients, and the people they serve, are saving for retirement, paying for their children’s educations, buying homes and starting businesses. Their investments also help to strengthen the global economy: support businesses small and large; finance infrastructure projects that connect and power cities; and facilitate innovations that drive progress.

This mission would not be possible without our smartest investment – the one we make in our employees. It’s why we’re dedicated to creating an environment where our colleagues feel welcomed, valued and supported with networks, benefits and development opportunities to help them thrive.

For additional information on BlackRock, please visit @blackrock | Twitter: @blackrock | :

BlackRock is proud to be an Equal Opportunity Employer. We evaluate qualified applicants without regard to age, disability, race, religion, sex, sexual orientation and other protected characteristics at law.