2027 Technology Developer Summer Internship Programme London

Barclays; Greater London; On-site; GBP 5,000 - 7,000; Full time

Job summary

Barclays invites you to a 10-week Summer Intern experience in London. You’ll work on real projects, supported by mentors, and gain hands-on experience while exploring what makes Barclays’ culture unique.

You'll join a fast-track expert programme designed to build depth and breadth, with training from day one to prepare you for a technical role across Java, C++, Python and more.

Qualifications

• Penultimate-year student graduating in 2028.
• Strong interest in technology and problem solving.
• Willingness to learn and deliver innovative solutions.

Responsibilities

• Design, develop and improve software across systems.
• Collaborate with product managers, designers and engineers.
• Adhere to secure coding practices and perform unit testing.
• Participate in code reviews and promote knowledge sharing.

Skills

Java

C++

C#

Python

SQL

JavaScript/TypeScript

DevOps

Cloud

Machine Learning

Scripting

Realtime systems

Education

Penultimate year student

Tools

Containers

Job description

Explore the world of Barclays as a Summer Intern

Spend 10 weeks diving into real projects, gaining hands‑on experience, and shaping your future. You’ll receive full support, take on meaningful responsibilities, and build lasting connections—all while discovering what makes our culture unique.

If you're in your penultimate year and ready to grow, learn, and make an impact, this is your opportunity to belong and thrive.

Our Expert Programme

You’ll join our expert programme, a 1 year targeted, fast-track programme designed to give you depth and breadth of experience. Participating in job-based bespoke training from the start enabling you to go fully‑equipped into your role as you develop specialist technical expertise.

Why the Technology Developer programme?

As a Developer, you’ll help design, build, test and maintain systems used across Barclays. This is more than writing code; you’ll play a role in solving complex problems for clients and customers. You may work with technologies including Java, C++, C#, Python, SQL, JavaScript/TypeScript, containers, DevOps, cloud, machine learning, scripting and real‑time systems.

To be considered for this opportunity, you must be in your penultimate year of university. You must be graduating in 2028.

You’ll also bring a genuine interest in technology, strong problem‑solving skills and the drive to deliver innovative solutions.

The location for this role is indicated in the job title, and you will be based at that location. If you are successful in receiving a return offer to our graduate programme, your location will be the same as it was during your internship.

Barclays will accept applications from candidates who require visa sponsorship to work in the UK and will provide a skilled worker visa for successful applicants if they meet the Home Office’s eligibility criteria for a skilled worker visa.

Successful applicants who are not eligible to receive a skilled worker visa, and who are therefore unable to secure a skilled worker visa for, will be required to have their own legal right to work in the UK on a full‑time basis from June 2027 to August 2027.

Working In London

If you love the buzz of city life, our global HQ is the place to be. Our London hub is in Canary Wharf, at the heart of London’s financial district. Here, you won’t just be perfectly placed to explore the nation’s capital; you’ll be in a place where you can explore the many functions and opportunities of a global financial giant.

It is the policy of Barclays to ensure equal employment opportunity without discrimination or harassment on the basis of race, color, creed, religion, national origin, alienage or citizenship status, age, sex, sexual orientation, gender identity or expression, marital or domestic/civil partnership status, disability, protected veteran status, genetic information, or any other basis protected by law.

The closing date for applications is 25 September 2026. Please note that this vacancy may close ahead of the advertised date due to application volumes, and we therefore recommend submitting your application as early as possible.

Purpose of the role

To design, develop and improve software, utilising various engineering methodologies, that provides business, platform, and technology capabilities for our customers and colleagues.

Accountabilities

• Development and delivery of high-quality software solutions by using industry aligned programming languages, frameworks, and tools. Ensuring that code is scalable, maintainable, and optimized for performance.
• Cross-functional collaboration with product managers, designers, and other engineers to define software requirements, devise solution strategies, and ensure seamless integration and alignment with business objectives.
• Collaboration with peers, participation in code reviews, and promotion of a culture of code quality and knowledge sharing.
• Adherence to secure coding practices to mitigate vulnerabilities, protect sensitive data, and ensure secure software solutions.
• Implementation of effective unit testing practices to ensure proper code design, readability, and reliability.

Analyst Expectations

• To perform prescribed activities in a timely manner and to a high standard consistently driving continuous improvement.
• Requires in-depth technical knowledge and experience in their assigned area of expertise
• Thorough understanding of the underlying principles and concepts within the area of expertise
• They lead and supervise a team, guiding and supporting professional development, allocating work requirements and coordinating team resources.
• If the position has leadership responsibilities, People Leaders are expected to demonstrate a clear set of leadership behaviours to create an environment for colleagues to thrive and deliver to a consistently excellent standard. The four LEAD behaviours are: L – Listen and be authentic, E – Energise and inspire, A – Align across the enterprise, D – Develop others.
• OR for an individual contributor, they develop technical expertise in work area, acting as an advisor where appropriate.
• Will have an impact on the work of related teams within the area.
• Partner with other functions and business areas.
• Takes responsibility for end results of a team’s operational processing and activities.
• Escalate breaches of policies / procedure appropriately.
• Take responsibility for embedding new policies/ procedures adopted due to risk mitigation.
• Advise and influence decision making within own area of expertise.
• Take ownership for managing risk and strengthening controls in relation to the work you own or contribute to. Deliver your workand areas of responsibility in line with relevant rules, regulation and codes of conduct.
• Maintain and continually build an understanding of how own sub-function integrates with function, alongside knowledge of the organisations products, services and processes within the function.
• Demonstrate understanding of how areas coordinate and contribute to the achievement of the objectives of the organisation sub-function.
• Make evaluative judgements based on the analysis of factual information, paying attention to detail.
• Resolve problems by identifying and selecting solutions through the application of acquired technical experience and will be guided by precedents.
• Guide and persuade team members and communicate complex / sensitive information.
• Act as contact point for stakeholders outside of the immediate function, while building a network of contacts outside team and external to the organisation.

All colleagues will be expected to demonstrate the Barclays Values of Respect, Integrity, Service, Excellence and Stewardship – our moral compass, helping us do what we believe is right. They will also be expected to demonstrate the Barclays Mindset – to Empower, Challenge and Drive – the operating manual for how we behave.