junior software developer jobs in London

We are looking for a Junior C# .NET Developer to join a growing technology team developing and supporting high-performance, real-time software systems. This is an excellent opportunity for a graduate or early-career developer who is passionate about software development and wants to build their career working with C#, .NET and complex, high-volume...

Please only apply to the one job you feel best fits your skillset and experience. If our team feels you are better suited for another role, we will reach out about the alternate opportunity.Position Overview:At Squarepoint we use Python to build a great deal of the software needed to solve crucial problems every day. You will work on a wide range of...

Please only apply to the one job you feel best fits your skillset and experience. If our team feels you are better suited for another role, we will reach out about the alternate opportunity.Position Overview:At Squarepoint we use C++ to build the majority of our low latency and high performance systems, which are directly responsible for executing the...

OverviewLMAX is renowned for its high-performance, ultra-low latency (we measure in microseconds) exchange written in core Java. We constantly push technology further than most, especially in our greenfield projects, driving the financial industry in new directions.If you want to work with great developer practices like fast feedback across all aspects of...

Please only apply to the one job you feel best fits your skillset and experience. If our team feels you are better suited for another role, we will reach out about the alternate opportunity.Position Overview:Front-end developers at Squarepoint are instrumental in enhancing user experience on our sophisticated research and trading platforms. You will use...

Please only apply to the one job you feel best fits your skillset and experience. If our team feels you are better suited for another role, we will reach out about the alternate opportunity.Position Overview:kdb+/q developers at Squarepoint work closely with researchers and traders to design, implement, test and maintain our service-oriented kdb+...

LMAX is renowned for its high-performance, ultra-low latency (we measure in microseconds) exchange written in core Java. We constantly push technology further than most, especially in our greenfield projects, driving the financial industry in new directions. Developers are encouraged to constantly develop and learn new skills. Pair programming supports...

London Tyréns AKT’s outstanding reputation, stability and growth has attracted the very best professionals with the promise of progressing and expanding their careers. This continued growth has led to the expansion of the company into key geographies across the globe: Cambridge, Manchester and Bristol in the UK, as well as Copenhagen and Toronto...

Job Description Junior Software Developer with C# C++ Java or Delphi Our Client is a boutique software consultancy providing analytical tools and processing software to the retail banking industry. Their tools are used by high street banks and major credit companies to evaluate credit risk of their applicants. They have a large library of Delphi software...

Onyx-Conseil in London is seeking a Junior Software Developer to work on analytical tools for the retail banking sector. You'll code in Delphi and other OO languages such as C++, Java, and C#. The role offers exposure to a broad project lifecycle and cross-functional collaboration.Experience with RAD Studio or Visual Studio is beneficial. A sound background...

Junior Software Developer with C# C++ Java or DelphiOur Client is a boutique software consultancy providing analytical tools and processing software to the retail banking industry.Their tools are used by highstreet banks and major credit companiesto evaluate credit risk of their applicants.Theyhave a large library of Delphi software codeincorporating SQL,...

Konrad in London is seeking an entry-level Software Developer to work on mobile or web applications as part of a highly skilled development team. You’ll contribute to consumer and enterprise projects, participate in code reviews, and grow your technical abilities in a collaborative, learning-focused environment.From day one you’ll write maintainable,...

Vacancy for Junior Software Developer at The National Archives (UK)Vacancy for Junior Software Developer at The National Archives (UK)12 November 2025London, England£34,610 base salary plus £1,000 market supplementFull-TimeThe National Archives is growing our Digital, Data and Technology (DDaT) capability to help us transform the way we offer services to...

Junior C# Software Developer – Quant Trading 70,000 Plus Bonus, Hybrid WorkingQuant Capital is urgently looking for a C# Developer to join our high profile client.Our client is a well-known leading provider of integrated risk, analytics and trading solutions for the global financial markets. They specialise in the Quant and Algo Trading Space. Their...

Reed Technology in London is hiring a Junior Software & Systems Developer for a hybrid role. You will learn the technical support environment, enhance internal systems, automation, and AI capabilities, and contribute to diagnostics tools improving efficiency and customer experience.Working with the Senior Developer, you’ll gain hands-on development...

Tyréns AKT in London is expanding its in-house Software Development Team and seeking a Junior Software Engineer to design and maintain software tools for multiple disciplines, including computational design and engineering.You will collaborate with stakeholders, participate in CI/CD automation, and apply agentic AI tools to accelerate development while...

Discipline: **Software Development** Location: **London** **Tyréns AKT’s outstanding reputation, stability and growth has attracted the very best professionals with the promise of progressing and expanding their careers. This continued growth has led to the expansion of the company into key geographies across the globe: Cambridge, Manchester and Bristol...

Discipline: **Software Development** Location: **London** **Tyréns AKT’s outstanding reputation, stability and growth has attracted the very best professionals with the promise of progressing and expanding their careers. This continued growth has led to the expansion of the company into key geographies across the globe: Cambridge, Manchester and Bristol...

55,000 - 75,000London AreaHave you got 1-2 years experience as a Java Developer and are looking for the next step in your career? Junior Software Engineer – Global FX TradingLocation – 3 days hybrid in LondonSalary - 55,000-70,000 + bonusOur longstanding partner, who are leading at the forefront of FX trading around the world, are on the hunt for a...

Job-ID: 1544Category: TechnologyLocation: London, United Kingdom; Leeds, West Yorkshire, United KingdomWorkplace: HybridSchedule: Full timePosted: Closes: Junior Software EngineerLocation: London or Leeds - HybridClosing date: Tuesday 27/10/2026The role..We are looking for an enthusiastic Junior Software Engineer with at least 2 years of commercial...