
Java Developer Contract
On site
London, United Kingdom
£ 1,000 / day
Freelance
26-02-2025
Job Specifications
Senior Java Engineer – Hedge Fund
£1000 per day Contract Outside IR35
Jan Start
Hybrid
Quant Capital is urgently looking for a Senior Java Engineer to join our high profile client.
Our client is a well known Systematic Trading Hedge Fund. They like technology especially the opensource variety as well as scalability and robust performance (much like their track record). They currently run around £2 billion in liquid capital.
The business has expanded continuously and is building a new risk engine for their systematic fund clients. This role will be working with a large distributed system (Built in Java) automating a large volume of realtime data into a portfolio management system. I am looking for a proficient developer with good data knowledge and an understanding of latency.
I am looking for an engineer with strong core Java knowledge who is happy to learn risk. You should be happy to expand a data platform from scratch with some serious help on the financial side.
The Java Engineer Must have:
2:1 Computer Science degree
15+ years plus commercial development experience
Strong and demonstrable low-level Java experience
Strong Database skills
AWS
Code generation
Currently using Java 8 +
Object orientated programming, threading, concurrency and distributed systems
My client is based in Central London but does not require office work unless a core meeting is called.
Distributed Systems , Scale, Java, EC2, DevOps, Linux, AWS, Java, CLoudwatch
About the Company
Executive Search and Recruitment to the Quantitative Trading and Financial Technology space. We provide a discrete search capability for the best known and most prestigious Hedge Funds & Prop Trading firms in the world. Our specialized experience, market knowledge, extensive network, and commitment to client service ensure that every search is conducted effectively. Quant Capital has been the Recruitment Partner to the Fintech50 for many years. Our goal is to be recognised as a partner to the most interesting trading and... Know more
Related Jobs


- Company Name
- Square One Resources
- Job Title
- Senior NodeJs Developer - London - Media/Telecoms
- Job Description
- Job Title: Senior NodeJs Backend Developer Location: London (Paddington) Salary/Rate: £409 per day inside IR35 Start Date: March 2025 Job Type: 6-month Contract Hybrid: 2-3 days a week on-site. (Paddington) My client in the Media and Telecommunications sector is urgently seeking a Senior NodeJS Developer for an initial 6 month contract. This hybrid role requires 2-3 days on-site at the Clients office in Paddington. Excellent Back End NodeJS, TypeScript and Google Kubernetes Engine (GKE) experience is a MUST for this role. Job Responsibilities/Objectives 1. A Senior Technical Leader has proven extensive experience or a proven track record of handling multiply projects or larger, more complex systems then a Technical Lead. 2. Ability to grasp and understand both Technical and Business aspects, which enables them to make strategic technical decisions that impact multiple teams or even entire departments within engineering while delivering solutions that delight the business/product. 3. Takes a broader scope, often overseeing multiple projects or cross functional efforts within engineering and providing leadership in the teams/squads. 4. Expected to work closely with enterprise/solution architecture stakeholders to write the application architecture design for the solution(s) and guide/mentoring the technical leaders of the squad(s) within Frontend Engineering to design and architect a scalable and reliable solution meeting business needs. Required Skills/Experience 1. NodeJS: Efficient run time for building server-side applications. 2. Typescript: Open-Source programme language superset of JavaScript with additional features. 3. Google Kubernetes Engine (GKE): Managed service for deploying and scaling containerised applications. If you are interested in this opportunity, please apply now with your updated CV in Microsoft Word/PDF format. Disclaimer Notwithstanding any guidelines given to level of experience sought, we will consider candidates from outside this range if they can demonstrate the necessary competencies. Square One is acting as both an employment agency and an employment business, and is an equal opportunities recruitment business. Square One embraces diversity and will treat everyone equally. Please see our website for our full diversity statement.


- Company Name
- Initialize
- Job Title
- Back-End Developer
- Job Description
- Back-End Developer - 6 months, London/hybrid - £409 per day Skills: Node.js: Efficient runtime for building server-side applications. Typescript: Open-Source programme language superset of JavaScript with additional features. Google Kubernetes Engine (GKE): Managed service for deploying and scaling containerised applications. Senior Backend Engineer Ability to grasp and understand both Technical and Business aspects, which enables them to make strategic technical decisions that impact multiple teams or even entire departments within engineering while delivering solutions that delight the business/product. Expected to work closely with enterprise/solution architecture stakeholders to write the application architecture design for the solution(s)and guide/mentoring the technical leaders of the squad(s) within Frontend Engineering to design and architect a scalable and reliable solution meeting business needs


- Company Name
- Allegis Global Solutions
- Job Title
- Lead Sabre Java Developer
- Job Description
- Client: Global Investment Banking Industry Contract duration: 12 months (possibility to extend) Location: London, UK Hybrid Working Model £750 PAYE Contract Start Date: ASAP Key Technical Skills 8+ years hands on development with investment banking IT experience Java 17+development experience working in a performance focused concurrent environment Experience with Caching technologies like Redis could be advantageous Experience with Cloud technologies like AWS could be advantageous Experience with Database technologies like PostgreSQL could be advantageous Experience with Messaging technologies like ActiveMQ and Apache Kafka could be advantageous Key Roles & Responsibilities Work closely with the Development Manager, Project Manager, and a team of developers to deliver Java components to internal business users Demonstrate a systematic and disciplined architectural, system design and programming approach Deeply passionate about best-practice software design principles, you will write robust code along with a high-level of test coverage Self-starter who can drive/facilitate requirements and development effort Design smart and scalable solutions following the bank standards Coordinate with other teams in Technology Develop, prepare and maintain system documentation, including program descriptions and operational procedures Act as the second line of support during production problems. Qualification & Skills Development Tools and Methodologies Experience of TDD and BDD in a commercial environment Exposure to continuous build and deployment solutions with Azure DevOps Able to work within an agile environment delivering software incrementally Other Preferred Skills Strong analytical & problem solving and creative skills Good communication skills in both written and oral English Ability to be organized and multi-task on different requirements across various stakeholders, and to work independently and under pressure Cultural sensitivity and awareness to work with a range of people from diverse background and geographies Should have a technical or numerate degree in subjects such as Computer Science, Engineering, Mathematics or Economics


- Company Name
- Olo
- Job Title
- Senior Developer Support Engineer
- Job Description
- Olo is a leading SaaS platform accelerating digital transformation in the restaurant industry, by helping customers deliver more personalized and profitable guest experiences. As a result, our digital ordering, payment, and guest engagement solutions enable hospitality at scale, helping brands to do more with less, and making every guest feel like a regular. Developer Support is an engineering team that helps restaurant brands and partners integrate with Olo’s APIs and technical tools. We solve problems through technical expertise, critical thinking, and deep product knowledge. Whether troubleshooting or providing guidance on using our APIs, we approach support like engineers—investigating thoroughly, learning continuously, and adapting to frequent product enhancements. Curiosity, collaboration, and dependability drive how we work. As a Senior Developer Support Engineer, you’ll use your engineering expertise to help brands and partners integrate with Olo’s APIs, SDKs, and technical specs. While the role doesn’t involve hands-on coding, you’ll troubleshoot complex issues and provide clear resolution guidance. You’ll also collaborate across teams to improve the developer experience, enhance internal processes, and drive automation. Success in this role requires technical expertise, empathy in customer interactions, and the ability to communicate complex concepts clearly across different audiences. This position is fully remote and allows you to work from anywhere within the United Kingdom. The primary shift time for this role will be 2pm-11pm GMT Monday-Friday. You will be contracted to Olo through Deel, our Employer of Record. An Employer of Record (EOR) is an organization hired by companies to handle the legal and administrative responsibilities of employing staff, often in countries where the company might not have a local presence. Here’s an easy way to think of it: You work for Olo in a practical sense, completing your assigned role. The EOR is your formal employer, meaning the EOR takes care of all the administrative and legal responsibilities for your employment. In line with this arrangement, you maintain your day-to-day relationship with Olo, and Deel will be your point of contact for any job-related matters of your engagement. Moreover, you’ll retain all the employment rights you typically have under local employment law when you’re hired through an EOR, and you will be eligible for private healthcare coverage in addition to being able to participate in all statutorily required benefits and pension programs. What You'll Do Act as a technical expert for complex issues related to Olo’s APIs, SDKs, webhooks, technical specs, and libraries, driving effective troubleshooting and seamless integrations. Investigate, resolve, and document technical issues by reviewing documentation, logs, source code, and configuration settings, ensuring solutions are current and applicable in evolving environments. Automate repetitive tasks to improve internal processes and customer experience. Perform technical certifications for customers looking to use our tools in a production environment, ensuring their setups meet our standards and requirements. Collaborate with cross-functional teams (engineering, product, customer success) to troubleshoot issues, drive feature requests, and contribute to ongoing improvements. Contribute to internal and external documentation, ensuring technical resources and best practices are described in a clear and accessible manner. Provide guidance and mentorship to other members of the support team, fostering a culture of continuous learning and technical growth. Uphold the team’s values of curiosity, collaboration, dependability, and technical excellence, always striving to improve support processes. What We'll Expect From You Experience with Technical Problem-Solving: You have a background in solving complex technical problems, with 3-5+ years of full-time engineering experience, including developing APIs and integrating to third-party services; experience with .NET is a plus. Hands-On Approach: You approach support like an engineer—debugging issues, challenging assumptions, and seeking root causes rather than relying on past solutions. You think critically about APIs, logs, and configurations to provide accurate, well-reasoned answers. Technical Communication: You excel at translating complex technical topics into clear, audience-appropriate explanations (both written and verbal). Whether writing documentation, responding to customers, or collaborating with engineering, you communicate with clarity and precision. Empathy & Customer Focus: You understand that behind every support request is a person trying to solve a problem. You balance technical accuracy with an empathetic, customer-first approach. Collaboration & Independence: You work well both independently and across teams, engaging with engineering, product, and customer success to find answers and improve the developer experience. You know when to ask for help and when to take the lead in solving a problem. About Olo Olo (NYSE: OLO) is a leading restaurant technology provider with ordering, payment, and guest engagement solutions that help brands increase orders, streamline operations, and improve the guest experience. Each day, Olo processes millions of orders on its open SaaS platform, gathering the right data from each touchpoint into a single source—so restaurants can better understand and better serve every guest on every channel, every time. Over 700 restaurant brands trust Olo and its network of more than 400 integration partners to innovate on behalf of the restaurant community, accelerating technology’s positive impact and creating a world where every restaurant guest feels like a regular. Learn more at olo.com. Our best estimate of the compensation range for this opportunity is £41,000 - £48,925 annually, depending on the experience you bring. We look forward to discussing your expectations during the interview process. Applicant Privacy Notice (United Kingdom)