cover image
RE Partners

Senior Java Developer, Low Latency, FX

On site

London, United Kingdom

Full Time

04-04-2025

Share this job:

Score my CV

Job Specifications

Low Latency, FX, Banking
Location: London (On-site, 5 days a week)
Full-time, permanent

We are seeking a Senior Java Developer with expertise in Core Java, low-latency systems, and FX trading to join our team. This role is based on-site in the UK, requiring 5 days a week in the office. The ideal candidate will have strong experience in high-performance, real-time financial systems within the banking sector.

Key Responsibilities
• Develop and enhance low-latency, high-throughput trading applications for FX markets.
• Optimize and fine-tune real-time systems for performance, scalability, and reliability.
• Work closely with traders, quants, and other stakeholders to design and implement cutting-edge solutions.
• Ensure adherence to best practices in multithreading, memory management, and garbage collection tuning.
• Collaborate with global teams to integrate systems and improve existing architectures.
• Maintain and improve existing Java applications while ensuring code quality and security compliance.
• Troubleshoot complex performance bottlenecks and implement optimizations

Required Skills & Experience
• Strong expertise in Core Java (Java 8+), including concurrency, collections, and JVM performance tuning.
• Proven experience in low-latency, high-frequency trading systems.
• FX trading domain knowledge with experience in pricing, risk, and execution systems.
• Experience with multithreading, garbage collection tuning, and optimizing memory management. • Strong understanding of networking, TCP/IP, messaging protocols (e.g., FIX, Kafka, or RabbitMQ). • Experience working within banking, hedge funds, or financial institutions.
• Solid understanding of algorithms, data structures, and system design principles.
• Familiarity with Linux-based systems and scripting for performance tuning.
• Strong communication and stakeholder management skills.

Nice-to-Have
• Experience with Kubernetes, Docker, and cloud-based deployments (AWS/GCP/Azure).
• Knowledge of Quantitative Finance or Algorithmic Trading Strategies.
• Exposure to Python or Scala for data analysis or scripting.


We are looking forward to your applications and referrals!

About the Company

RE Partners Consulting LLC was co-founded in 2019 by CEO Valerie Kogan and CRO Alex Gikher, and our custom-tailored, high-touch, white-glove engineering service is a result of 50+ years of combined experience to leverage the latest technologies and business trends. This approach has helped a wide-ranging portfolio of global clients reach their goals. RE Partners makes the aspirational attainable for our clients. We provide technology and consulting services to a number of leading brands across an array of industries. These... Know more

Related Jobs

Company background Company brand
Company Name
Opus Recruitment Solutions
Job Title
Frontend Developer
Job Description
Location: Cambridge (3 days per week office working) Salary: £55,000 Job title: Front End Developer - HealthTech Tech: React, JavaScript, HTML, CSS, ES6 Would you like to work on a product that is making a positive change in peoples life? Interested in working within HealthTech? Come speak with this start-up in Cambridge who partner with the NHS and other healthcare providers, building software that is used on a daily basis. They're a small team but with big plans to scale within 2025 and with the client base they already have; they are destined for more success! They're looking for a Front End Developer who can take ownership of the Front End, someone who wants to move into a more senior role over time and eventually into a lead position. Ideally, you'll have an interest in UX/UI and have at least 2 years experience in React and as you'll be one of the key hires, you will get lots of autonomy on ways of working. For this Front End Developer role, you will need to have the below experience: Solid and scalable front-end development skills using HTML and CSS Min 2 years with React and Typescript Adept at creating reliable, well-tested systems, with excellent UI design The office is in Cambridge and you'll need to be working from their 3 days a week, so you'll have to live in a commutable distance and hold the right to work in the UK. In return, they're offering a salary of up to £55,000 with regular pay reviews. To find out more, contact me on danny.moore@opusrs.com
Cambridge, United Kingdom
Hybrid
Full Time
17-04-2025
Company background Company brand
Company Name
Freetrade
Job Title
Junior Software Engineer
Job Description
Department: Engineering Employment Type: Permanent - Full Time Location: London Reporting To: Chris Pavlicek Compensation: £37,000 - £50,000 / year Description Junior Software Engineer / Backend London, UK Freetrade’s mission is to become the default place to invest. Investing has been too complicated and expensive for too long, keeping millions from making the most of their savings. We’re changing that. We’re building our team and looking for people who are excited to reshape how our customers invest and grow their wealth. If you’re driven by solving complex problems and building innovative products, you’ll fit right in. 2025 is a big year for us. In January, we announced a game changing deal to become part of the IG Group. We’ll continue to operate as an independent business while gaining access to the resources and support of an established leader in the space. This year, we’re accelerating our roadmap and taking our products to the next level. We’re building new features like mutual funds, bonds, and family investment tools. We’re also exploring how we can leverage AI to deliver an even better experience for our customers. Why Join Our Engineering Team? Be part of a team that’s shaping the future of investments. As an engineer, you’ll play a pivotal role in developing and maintaining a robust, scalable platform used by thousands daily. We tackle complex technical challenges, drive innovation, and build solutions that make a real impact. Here, your code doesn’t just run—it powers the decisions of investors across the UK. Join us and turn ideas into reality. We are looking for an experienced Software Engineer, to join our Backend Engineering squad. Tech stack: NodeJS/Typescript, Google Cloud Platform, Postgresql. You will... Develop high-quality software within agreed timelines, addressing complex problems by proposing various solutions and considering trade-offs to assist your team in making effective technical decisions. Solve technical challenges by delivering scalable and maintainable solutions efficiently, while balancing trade-offs. Understand the core features and KPIs of your product, working closely with the Product Manager to drive the product’s development. Be comfortable in an on-call environment, responding to high-priority issues and knowing when to escalate them. About You Encourage collaboration and share responsibility for software design, helping to improve the skills and capabilities of your team members. Set high standards for software quality and delivery performance within your team, providing constructive feedback and helping to raise the bar. Possess the ability to handle complex and unfamiliar problems, especially under pressure. Have a keen eye for detail and a thorough understanding of your work. Have a strong interest in the world of investments. Stay current with technology trends and advocate for good practices within the team. Benefits & Logistics Freetrade is the place to accelerate your career. Our benefits package and ways of working are designed to attract and retain the most talented people who are dedicated to making an impact at Freetrade. Here’s What’s On Offer In 2025 Office first culture - we have beautiful office spaces in central London and Budapest where four days a week you collaborate with colleagues in person, one of our core behaviours is that we’re a team that works better together. Values - at Freetrade we live and breathe our values: Honesty, Focus and Grit. Expect to be asked about these in your interview! Benefits In London Competitive salary – carefully benchmarked. Holidays – 25 days plus UK public holidays. Your birthday off, plus one extra day for every year at Freetrade. Enhanced pension – We’ll match your contributions up to 5%. Group Life Insurance – Protect your loved ones with coverage at 5x your salary, ensuring financial security in any circumstance. Private Health Insurance - Which includes access to high quality medical care, mental health support, dental and vision plans, Wellness programs and preventative care initiatives are also provided to ensure the wellbeing of your entire family. Income Protection Cover – Safeguard your income with comprehensive coverage, ensuring financial stability in the event of illness or injury. Enhanced parental leave – Time off when it matters most. Flexibility for those who need it – We’re office-first, but life happens. Whether you’re a parent or have care responsibilities, we focus on output and trust you to manage your time. Learning & Development – We fund industry qualifications so you can grow as a financial services professional. Cycle to Work scheme – Get a high quality bike and gear through our salary sacrifice scheme, spreading the cost with tax free monthly instalments. Paid Sick Leave – Receive 10 days of fully paid sick leave each calendar year. Following the close of the deal to become part of IG Group, you can expect that our benefits package will further improve to align with the benefits on offer. Interview Process We keep things simple and transparent. Our process typically includes: Initial interview – A chat with one of our Talent Specialists. Hiring Manager interview – A deep dive into your skills and experience. Live Coding – Show us how you think and solve problems. System Design – We’ll explore how you design systems to handle real-world challenges. Executive interview – A conversation with our stakeholders, where we also assess cultural fit. We are an Equal Opportunity employer committed to a diverse and representative team. Whatever your race, religion, colour, national origin, gender, sexual orientation, age, marital status, or disability - we want to hear from you. We're very open about what we're working on, and the best places to learn more are our buzzing community forum and our blog. To find out more about how we look after your personal data when you apply for a job with us, please see our Recruitment Privacy Policy here. Please note we are not accepting agency CVs.
London, United Kingdom
On site
Full Time
17-04-2025
Company background Company brand
Company Name
GBV Ltd
Job Title
Head of DevOps
Job Description
I am recruiting currently for a Head of Platform Engineering for my Manchester City Centre based client on a hybrid basis (2 days in the office per week). As Head of Platform Engineering, you’ll be a key member of our engineering leadership team, responsible for developing and empowering a cross-functional group of DevOps, SRE, DBA, and Network Engineering specialists. We’re looking for a strong leader who thrives on building high-performing teams, delivering complex projects at pace, and proactively drives strategic initiatives that align with our ambitious growth goals. With deep experience in Azure and cloud-native architectures, you’ll shape our platform roadmap, improve reliability and scalability, and foster a culture of ownership, collaboration, and continuous improvement. Key Responsibilities Operational Excellence Platform Strategy: Team Leadership: Project Delivery: Security & Compliance: Communication & Stakeholder Management Experience Essential: Proven experience leading high-performing Platform Engineering, DevOps, or SRE teams, in a SaaS environment. Deep expertise in Microsoft Azure services, including Azure Functions, AKS, Cosmos DB, Azure DevOps, and Infrastructure as Code (e.g. Terraform) and good open source knowledge e.g. PostgreSQL Strong people leadership and line management experience—able to coach, develop, and performance-manage cross-functional teams. Track record of designing, building, and operating scalable, secure, and cost-efficient cloud platforms. Hands-on experience implementing CI/CD pipelines, infrastructure automation, and observability frameworks. Deep understanding of operational excellence practices, including system reliability, incident management, and SRE methodologies. Demonstrated ability to embed security and compliance practices across the SDLC (e.g., DevSecOps, Zero Trust). Excellent communication and stakeholder engagement skills, capable of aligning technical initiatives with business outcomes. Desirable: Experience in the Contact Centre, Telephony, or VoIP domain, particularly within CCaaS or real-time communications platforms. Familiarity with networking principles, SIP, SBCs, and telephony infrastructure in cloud environments. Exposure to FinOps practices and tools for managing cloud cost efficiency and forecasting. Experience working closely with Product and Engineering leadership to shape platform roadmaps and internal developer tools. Azure certifications (e.g., Azure Solutions Architect Expert, DevOps Engineer Expert) or equivalent SRE/DevSecOps accreditations. Experience managing vendor relationships and third-party cloud tooling integrations. The role will be managing a team of 7 people across and the split is likely to be 60-70% hands on and 30-40% management/leadership. The role will be paying circa £100k + benefits. Please apply now.
Manchester, United Kingdom
Hybrid
Full Time
16-04-2025
Company background Company brand
Company Name
Aztec
Job Title
Software Engineer Front-End Web3
Job Description
About Aztec At Aztec, our goal is to add privacy to Ethereum. In the current public blockchain paradigm, users and entities unknowingly broadcast data in the public, compromising privacy and security to get trustlessness. Not only are unencrypted blockchains inherently privacy-exposing, they require significant redundancy to compute and verify the legitimacy of transactions. Implementing scalable encryption in a public blockchain paradigm requires cutting-edge math and engineering. Thankfully, our team of scientists and engineers invented Plonk, the industry-standard zkSNARK, and Noir, the universal language of zero knowledge. Now, we’re building a first of its kind Layer 2 with private smart contracts. This requires new cryptographic primitives, a zero-knowledge DSL for writing contracts, a privacy-friendly execution environment, a carefully designed set of circuits that prove the validity of the chain to L1, a decentralized block-building and proving mechanism, and a top-tier user and developer experience. And it’s now time to bring it to market. We’ve raised $125 million from industry-leading investors including a16z crypto, Paradigm, Variant, Consensys, and a_capital, and we’re growing quickly. Role Overview As a Front-End Software Engineer at Aztec Labs, you’ll be at the forefront of designing and developing intuitive, high-performance user interfaces for developers and users interacting with our zkApps, wallets, and protocol tools. You will collaborate with design, cryptography, and protocol teams to ensure seamless and secure user experiences in a highly technical, fast-paced environment. This is a unique opportunity to help define the UX of privacy in Web3 and shape how users interact with next-gen decentralized systems. Key Responsibilities Design, implement, and maintain front-end applications for zk-powered tools and dApps. Initial projects in the first months will be designing and developing the frontends for our showcase payment dApp and sequencer staking bootstrap projects, critical for our mainnet launch this year. Work closely with product managers to align UI/UX with product requirements. Work closely with engineers to integrate aztec.js into the apps and provide critical feedback. Create and translate design mockups and wireframes into pixel-perfect, responsive interfaces. Write modular, testable, and maintainable code using modern JavaScript frameworks. Contribute to UI/UX discussions and drive decisions around user experience best practices. Ensure performance, security, and scalability of all front-end applications. Required Qualifications 3+ years of experience building production-grade front-end applications. Strong proficiency in TypeScript, JavaScript, React or Svelte, and HTML/CSS. A deep understanding of frontend performance optimization, accessibility, and responsive design. A focused, and minimalist approach to engineering and design, avoiding bloat, and keeping the code easy for everyone to maintain. Strong communication and collaboration skills. You will be expected to develop a deep understanding of the requirements, and can then take the initiative to meet them with minimal management. Passion for blockchain technology and a strong desire to build user-first Web3 applications. Nice to Have Experience working with Web3 libraries (e.g., ethers.js, viem, wagmi). Familiarity with zero-knowledge proofs, privacy-preserving technologies, or blockchain protocols. Previous contributions to crypto wallets, block explorers, or dApp front-ends. Understanding of UX design principles and familiarity with Figma or design systems. Experience with end-to-end testing frameworks (e.g., Cypress, Playwright). Exposure to Layer 2 solutions and Ethereum development tools. What We Offer A highly competitive compensation package (including equity) Flexible and remote work environment 25 days holiday + bank holidays annually An opportunity to work at the cutting edge of blockchain with a world class cryptography and engineering team Aztec Labs is an equal opportunity employer and we value creativity, diversity, and intellectual curiosity. If you're passionate about leveraging your creative talents to make a real-world impact, and if you want to be part of a team that's shaping the future of digital privacy, then we would love to hear from you.
London, United Kingdom
On site
Full Time
16-04-2025