React Jobs in London

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React Jobs in London

Overview

Looking for React jobs in London? Explore the latest React developer roles in one of the UK’s top tech hubs. Whether you’re a junior or senior React engineer, Haystack offers exclusive access to London-based opportunities with leading employers. Start your React career in London today and connect with exciting frontend and full-stack positions tailored to your skills.

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Network Automation Engineer

Network Automation Engineer - IT Infrastructure

INSIDE IR35

£550 - £600 (umbrella) per day dependent on experience

Department: ISD - Allocated 100% to Network Modernisation programme

Duration: Long term strategic programme with an initial 6-month contract with opportunity to extend for the right candidate

Main Purpose of the Job:

We are seeking a skilled Infrastructure Automation Engineer to support a large-scale network modernisation programme for one of the world’s leading Universities. This is an exciting opportunity to join the programme at initiation. The right candidate will drive forward the automation workstream that underpins the largest network modernisation programme across the UK higher education sector. Core responsibilities include design, implementation, testing of automated Network Infrastructure development that will enable scalable, secure, automated, resilient network services across the University’s estate.

Reports To: Portfolio Delivery ManagerKey Responsibilities:

Project Delivery

Design and implement Infrastructure as Code (IaC) using Terraform, Ansible and GitHub.

Automate provisioning and configuration of network infrastructure (e.g., firewalls, load balancers, VPNs, SD-WAN).

Collaborate with the Network Architecture and DevOps team to automate self-service infrastructure configuration.

Integrate infrastructure automation into CI/CD pipelines for seamless deployment.

Development of reusable patterns, modules, templates and playbooks that ensure consistency, auditability, and rapid service enablement.

Monitor infrastructure/cyber and automate remediation workflows.

Ensure compliance with security and governance policies through automated controls.

Document infrastructure designs, automation workflows, and operational procedures.

Experience

Working on large scale Network transformation programmes.

Technical lead of infrastructure-as-code (IaC), automation, deployment, configuration, management and scaling.

Managing delivery alongside external partners and managing senior stakeholders.

Building automated pipelines and orchestration frameworks for hybrid environments (on-premises, private/public cloud) including automated testing.

Expert in industry-standard software and project methodologies and tooling (e.g., SAFe (Agile), Jira, Confluence).

Expert in Network systems particularly Aruba technology stack.

Solid understanding of Application delivery control.

Essential Skills/Abilities/Knowledge

Network infrastructure automation using DevOps practices.

Strong hands-on experience with:

Terraform, Ansible, or similar IaC tools

CI/CD tools (e.g., Jenkins, GitLab CI, Azure DevOps)

Cloud platforms (AWS, Azure, or GCP)

Solid understanding of networking concepts (TCP/IP, DNS, routing, VPNs, firewalls).

Familiarity with monitoring and logging tools (e.g., Prometheus, Grafana, ELK).

Scripting skills including Python and React.

Please apply to the advert for more information.

Carbon60, Lorien & SRG - The Impellam Group STEM Portfolio are acting as an Employment Business in relation to this vacancy.

Staff Software Engineer Java Kotlin AWS

Staff Software Engineer / Developer (Java Kotlin AWS API) Hybrid WFH to £110k

Would you like to progress your career in an impactful hands-on Software Engineer role working on Tech for Good?

You could be joining a HealthTech Start-up, founded by two highly successful, Cambridge University educated management consultants, that is aiming to improve patient and social care for all by using complex technology to improve access to patient records, enabling collaboration between healthcare providers and improving nursing and medical care.

As a Staff Software Engineer you will collaborate with the CTO on the overall design and architecture of the products’ tech stack, working on Greenfield applications. The tech stack is based on Kotlin, SpringBoot and AWS backend with TypeScript, React and Next.js on the front end.

You’ll be hands-on with architecture, design and coding, including complex business logic, authentication and security aspects, working across the full tech stack to create the beta product.

Location / WFH:

You can work from home most of the time, the company has office space in London you’ll join them there once every three weeks, and also occasionally visit clients in the South West to gather requirements and liaise on bespoke product development.

About you:

You have expertise with software engineering best practices, experience across the full development lifecycle and tech stack

You have experience with Kotlin, Java, SpringBoot and AWS

You have a good understanding of APIs and permission based systems

You have a good understanding of software architecture and have experience of building systems from scratch

You’re able to assess, recommend and make technical decisions with long-term product strategy in mind

You have strong technical project leadership skills and experience of working with clients

You have excellent communication and stakeholder management skills

You are degree educated in Computer Science or similar technical discipline

Experience with RBAC systems would be beneficial

What’s in it for you:

Salary to £120k

Equity shares package

Impactful role with excellent progression opportunities

Opportunity to work on tech for good to positively benefits society

Apply now to find out more about this Staff Software Engineer / Developer (Kotlin AWS React) opportunity.

At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We’re an equal opportunities employer whose people come from all walks of life and will never discriminate based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.

Fullstack Javascript Developer l Typescript l Maestro l Supertest l Automation l API l Mobile l React Native l Playwright l Platform l CI/CD l integration l Node.JS l £400 PD l Outside IR35 l End of January l London - Remote

Method Resourcing are partnering with an exciting start up based in London in need of a Fullstack Javascript engineer to help pave the way for a more test-driven environment and add best practices and frameworks across the platform whilst being able to hands on code. This will also help with the bottleneck within their CI/CD pipelines

Core tech stack:

Javascript/Typescript

Testing: Playwright, maestro and Supertest

CI/CD is built in github actions

AWS Serverless infrastructure

Mobile application in React native

Realistically, we are looking for someone who has around 3-4 years of experience, eager to impress and over-deliver, can work very independently and raise the quality bar - with the potential option of going permanent after for the right person.

Key requirements

Build lightweight but effective tests for critical and complex areas of the stack (e.g. Paywall, ROD, ROT).

Collaborate with teams to identify low test coverage on critical paths and develop actionable plans to improve it.

Maintain and improve the existing test suite, focusing on fixing flaky tests to enhance stability and confidence.

Act as a gatekeeper for quality automation testing-working hands-on with code but not picking up slack from other teams.

Resolve bottlenecks in CI/CD pipelines to improve platform efficiency and delivery flow.

Contract:

Outside IR35

Contract till end of January

Remote however, has to be based in the UK

£400 per day

Immediate start

If you’re interested in the role and would love more information please send me your CV ASAP at

RSG Plc is acting as an Employment Business in relation to this vacancy.

Front End Developer TypeScript React Native

Front End Developer / Engineer (TypeScript React Native AI) London / WFH to £65kWant to work on intellectually and technically challenging AI systems at the cutting edge of what is possible, whilst learning and collaborating with an amazing team and enjoying flexible working and a range of other perks?You could be progressing your career as a Front End Developer at a well-established AI company acting as tech incubator within the World Economic Forum to tackle issues like climate change, AI, battery technology and other real world problems.As a Front End Developer you’ll design and develop new features and enhancements on the core product that uses Artificial Intelligence to harness knowledge for strategic advantage. You’ll work alongside a talented team contributing ideas, collaborating with designers and prototyping new features. There’s a modern tech stack, you’ll be mainly using JavaScript / TypeScript and React but will be able to pick new technologies and skills up on the job.**Location / WFH:**You’ll be joining a friendly and supportive team in London with flexibility to work from home one day a week.About you:

You are degree educated in Computer Science, from a top tier university (e.g. Russel Group, Oxbridge)

You have Typescript experience combined with strong React and React Native skills

You’re proficient with HTML5 and CSS3

You have experience of responsive design for desktop and mobile

You’re keen to work in a start-up environment

You have excellent communication and collaboration skills

You are a passionate technologist, keep up to date with the latest innovations and learn new things

You have solid knowledge of software engineering principles, Agile practices, CI/CD and ideally have experience within a cloud environment (AWS preferred)

You are a bright, proactive individual and a strong problem solver with commercial acumen

**What’s in it for you:**As a Front End Developer / Engineer, you will earn a competitive package including:

Work with the latest cutting-edge AI technologies

Excellent training and career development opportunities

Apply now to find out more about this Front End Developer / Engineer (TypeScript React Native AI) role.At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We’re an equal opportunities employer whose people come from all walks of life and will never discriminate based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.

Senior Software Engineer Full Stack JavaScript

Senior Software Engineer / Developer (Full Stack JavaScript) London to £100k

Opportunity to progress your career in a senior, hands-on Software Engineer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and route optimisation, streamlining processes and delivering CO2 carbon neutral targets, the company has been established 10 years, with recent funding of £125 million.

You’ll be working on complex and interesting systems and can enjoy a range of benefits and perks.

As a Senior Software Engineer you’ll collaborate as part of an Agile technology team to design and develop, troubleshoot and solve complex software issues to help scale and future proof the business. You’ll work across the full tech stack using JavaScript and Vue.js on the front end, there’s a range of other tech in the stack (TypeScript, Node.js, Java, Python and of course a bit of legacy PHP!), you’ll be encouraged to explore new technologies and use the best tool for the job as well as own your own DevOps and deployment.

There’s an emphasis on getting stuff done and immediate business impact, alongside longer term strategy.

Location / WFH:

There’s a hybrid work from home model with three days a week in the Hammersmith office and the other two work from home. When in the office you can enjoy the onsite gym, barista coffee and free breakfast.

About you:

You have strong full stack JavaScript development skills and are happy to work on projects that could be weighted either way or a 50/50 split

You have experience with JavaScript frameworks they use Vue.js but Angular or React experience is fine, you will also have experience with Python, Node.js and TypeScript

You’re product focussed with good business acumen

You have a good knowledge of APIs and an indepth understanding of web development practices, tools and technologies

You enjoy learning and picking up new things

You’re flexible and able to adapt to changing priorities

You have full software development lifecycle experience including CI/CD and testing

You’re collaborative with Agile team experience, happy to mentor more junior developers

You’re likely to be degree educated in Computer Science or similar tech discipline

What’s in it for you:

As a Senior Software Engineer you will receive a competitive package:

Salary to £100k

25 days holiday (increasing to 30), plus Christmas Eve

Vitality healthcare plus a host of wellbeing benefits

Pension

Family leave and enhanced maternity scheme

Continual career and self development opportunities

Onsite gym, and partnership with Octopus Electric Vehicles and Evans Cycle to Work scheme, there’s showers and towels if you do decide to cycle!

Apply now to find out more about this Senior Software Engineer (Full Stack JavaScript) opportunity.

Senior DevOps Engineer - AWS

As part of an engineering team, you’ll use your software engineering skills and experience to build features, resolve issues, and address technical debt. You’ll also bring a strategic lens to team processes and tooling, helping improve how the team operates and ultimately delivering valuable, high-quality software to customers.

What you’ll be doing

Build clean, maintainable features and resolve end-to-end issues, ensuring solutions are fit for purpose, add business value, and meet quality standards.

Contribute to strategies for managing technical debt, ensuring systems are secure, resilient, and reliable.

Define and analyse test approaches to deliver the best possible customer experience, with a focus on security, usability, and accessibility.

Conduct and participate in code reviews, considering functional and non-functional requirements such as performance, resiliency, maintainability, and security.

Promote continuous improvement in team effectiveness and culture, supporting changes that enhance productivity and happiness.

Build a collaborative environment, coaching and mentoring less experienced engineers.

Research emerging application technologies, identify opportunities to apply them, and share learnings across the team.

Ensure all customers and stakeholders are treated fairly and with respect.

What we’re looking for

Technology-focused degree preferred, or equivalent demonstrable experience.

Extensive knowledge of:

JavaScript, TypeScript, NodeJS, AWS SDK & CDK, Python, React, HTML/CSS, Java, Spring, Terraform/CloudFormation

Hands-on experience:

Building serverless applications in AWS

Building microservices in Java (Spring Boot)

Strong understanding of clean code principles, design patterns, distributed systems, software testing, CI/CD, and Agile methodologies (Scrum/Kanban).

Knowledge of application security.

Additional desirable skills:

SQL, GraphQL, Maven

Frontend performance optimisation

API security and secure coding best practices

Git release strategies

Nice to have: Postgres, DynamoDB, Kubernetes, GitHub Actions, Feign, Quarkus.

Proven track record in:

Delivering well-optimised and maintainable software features

Analysing and solving complex technical problems

Participating in effective code reviews with actionable feedback

Technical leadership, mentoring, and influencing team strategy

Robert Walters Operations Limited is an employment business and employment agency and welcomes applications from all candidates

Java Software Engineer

£55,000-£70,000/annum

Once every two weeks on client site - likely London

SC position - UK Eyes Only

Sanderson Government and Defence are working alongside a growing, exciting consultancy business who have recently won several exciting new projects in the UK public sector.

They are a highly flexible business, with the only on site requirement being to be willing to visit a client site once every couple of weeks. You can however work from any of a number of offices UK wide if you wish.

Technically, as you could end up working across a number of different projects, we are relatively open minded, however there are a few essentials.

You must have 4+ years experience, and be capable with the following:

Towards the upper end of the salary banding, we would also expect experience in mentoring, willingness and experience engaging with clients, and an ability to assist team leads.

Please note: We also have a similar python focussed position available, so please also apply if that would apply to yourself.

Reasonable Adjustments:

Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients.

If you need any help or adjustments during the recruitment process for any reason***,*** please let us know when you apply or talk to the recruiters directly so we can support you.

Senior Java Developer

Proactive Appointments

Inside IR35 - 3 days onsite

Our banking client is seeking an experienced Senior Java Developer to join their dynamic technology team. This role offers the opportunity to work on high-impact financial applications, driving innovation and excellence in software development within a fast-paced and regulated environment.

As a Senior Java Developer, you will play a key role in designing, developing, and maintaining enterprise-grade applications, while mentoring junior engineers and helping shape technical strategy.

Key Responsibilities

Design, develop, and maintain Java-based applications and services.

Write clean, efficient, and well-documented code.

Participate in code reviews and provide constructive feedback.

Collaborate with cross-functional teams to define, design, and deliver new features.

Troubleshoot and debug complex issues.

Required Qualifications

Professional Java software development experience.

Strong understanding of object-oriented programming and design patterns.

Hands-on experience with Spring and Hibernate frameworks.

Solid experience with relational databases (MSSQL, Oracle).

Proven experience with RESTful API design and development.

Strong background in unit, regression, and integration testing (JUnit).

Experience with Maven/Gradle build tools.

Proficiency with Git or similar version control systems.

Excellent problem-solving and communication skills.

Ability to work independently as well as collaboratively in a team.

Desirable Skills

Experience with cloud platforms (AWS, Azure, or GCP).

Exposure to microservices architecture.

Familiarity with containerization (Docker, Kubernetes).

Knowledge of NoSQL databases (e.g., MongoDB).

Experience with message queues (Kafka, Solace).

Front-end development exposure (React, Angular, Vue.js).

Experience building CI/CD pipelines.

Senior Java Developer

Due to the volume of applications received for positions, it will not be possible to respond to all applications and only applicants who are considered suitable for interview will be contacted.

Proactive Appointments Limited operates as an employment agency and employment business and is an equal opportunities organisation

We take our obligations to protect your personal data very seriously. Any information provided to us will be processed as detailed in our Privacy Notice, a copy of which can be found on our website

Senior .NET Developer

Avanti Recruitment is hiring for a high-growth, venture-backed FinTech company that focuses on TravelTech, and has built a SaaS platform for airlines and passengers. The company works in a hybrid fashion where you will be expected in office 2 days per week in Central London.

The company is expanding their team in the UK, and this is a rare opportunity to become the first onshore developer, working alongside the Project Manager, CTO and BA/Test Analyst. You will also work alongside the offshore team of 12 developers (Working to UK time zones).

The platform was built from the ground up, using the latest in .NET, Azure, and Microservices.

You will have the opportunity to grow into a leadership position as the company continues to expand.

Responsibilities:

Building and maintaining scalable microservices in .NET Core 6

Working on an Angular-based front-end interfaces

Designing and delivering high-performance APIs for real-time use cases

Collaborating with product and business teams on greenfield projects

Helping shape future hiring and onshore development culture

Your experience:

.NET Core 6

Angular (React / Vue also considered)

SQL Server

Azure, Azure DevOps, CI/CD

Microservices architecture

Experience in payments or airline/travel technology

Benefits:

Salary £60,000 - £70,000 (DOE)

25 Days holiday Bank Holidays

Share options

Hybrid working - 2 days in office per week

Performance-based bonus

Chance to grow into a leadership role as the team expands

If you are interested in this position, then click Apply Now

Senior .NET Fullstack Developer

The platform was built from the ground up, using the latest in .NET, Azure, and Microservices.

You will have the opportunity to grow into a leadership position as the company continues to expand.

Responsibilities:

Building and maintaining scalable microservices in .NET Core 6

Working on an Angular-based front-end interfaces

Designing and delivering high-performance APIs for real-time use cases

Collaborating with product and business teams on greenfield projects

Helping shape future hiring and onshore development culture

Your experience:

.NET Core 6

Angular (React / Vue also considered)

SQL Server

Azure, Azure DevOps, CI/CD

Microservices architecture

Experience in payments or airline/travel technology

Benefits:

Salary £60,000 - £70,000 (DOE)

25 Days holiday Bank Holidays

Share options

Hybrid working - 2 days in office per week

Performance-based bonus

Chance to grow into a leadership role as the team expands

If you are interested in this position, then click Apply Now

Senior Platform Delivery Lead BPMN & DMN - Camunda

Job Title: Senior Platform Delivery Lead (BPMN & DMN Orchestration Platform - Camunda)**Location: London (3 days a week on-site)Contract Length: Until 31/03/2026 (possibility for extension)Working Pattern: Full TimeRate:** Highly competitive rate available for suitable candidates

Join Our Team!

Are you ready to lead the charge in delivering innovative BPMN & DMN solutions? Our client is seeking a passionate Senior Platform Delivery Lead to architect, build, and implement a cutting-edge BPMN & DMN Orchestration Platform based on Camunda. This is your chance to make a significant impact in the financial sector while working in a dynamic Agile DevOps environment!

Purpose of the Role:

Architect and Build: Take the reins in designing and implementing a new BPMN & DMN Orchestration Platform.

Manage Delivery: Oversee Agile DevOps delivery of platform engineering resources to enable seamless automation capabilities across the EMEA region.

Required Skills and Experience:

Experience in implementing Camunda into enterprise DevOps platforms and integration with on prem and cloud-based architectures is essential.

Experience in implementing BMPN and DMN based engines for business process and business rules automation and orchestration within Financial Sector and highly regulated environment

Experience in onshore and offshore delivery team leadership

Experience in internal and third-party architecture and engineering resources management

Experience in performance management of resources, training and development

Thorough understanding of IT controls and software development lifecycle

Positive mindset to drive excellence and continual improvement in IT service delivery

Excellent analytical and problem-solving skills

Strong communication and interpersonal skills to effectively collaborate with diverse stakeholders

Effective corporate culture carrier, diversity and inclusion leader and sustainability champion

Key Responsibilities:

Lead the Way: Design and build the new Process Orchestration Platform using Camunda.

Agile Management: Drive agile DevOps delivery including ceremonies, plans, resources, budgets, and risk management.

Collaborate Effectively: Work with engineering, infrastructure, and security teams to ensure smooth delivery and continuous improvement.

Define Excellence: Establish engineering deliverables for the BPMN & DMN Centre of Excellence and support involved teams.

Foster Adoption: Create and implement a platform adoption plan with training and support to ensure effective utilisation.

Mentor and Inspire: Lead, manage, and mentor your team, fostering a collaborative environment focused on results.

Technical Skills:

Orchestration: Camunda 8 (including Zeebe, Operate, Elasticsearch, etc.)

Backend Development: Java 21, Spring Boot 3.x, Kafka

Frontend Development: Angular 15+, React 18+, REST APIs

CI/CD Tools: Jenkins, Docker, Kubernetes

Monitoring & Alerts: Prometheus, Grafana

Data Persistence: PostgreSQL, MongoDB, Redis

Why Join Us?

Be part of a forward-thinking organisation that values diversity, inclusion, and sustainability.

Work in a collaborative environment where your ideas and contributions are valued.

Enjoy a competitive salary and a supportive work culture that promotes professional growth.

If you’re an analytical and innovative leader ready to take on new challenges, we want to hear from you! Apply today and help shape the future of our BPMN & DMN Orchestration Platform!

Excited to make a difference? Let’s connect!

Pontoon is an employment consultancy. We put expertise, energy, and enthusiasm into improving everyone’s chance of being part of the workplace. We respect and appreciate people of all ethnicities, generations, religious beliefs, sexual orientations, gender identities, and more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive. If you require reasonable adjustments at any stage, please let us know and we will be happy to support you.

Software Developer C# TypeScript - FinTech

Software Developer / Engineer (C# TypeScript) London / WFH to £55k

Would like to progress your career as a Software Developer, working on a modern, web based, tech stack with continual learning and development opportunities as part of a diverse team?

You could be progressing your career at a global FinTech consistently voted as a Top 10 place to work, they invest in their people, you’ll be supported with training and can enjoy flexible working alongside a host of perks and benefits including flexible working.

As a Software Developer you’ll collaborate to design and develop new features and enhancements to the company’s flagship web based trading product. You’ll focus on backend systems using C# and TypeScript but will also have exposure to front end components in Angular and React within a TDD environment.

Location / WFH:

You can work from home most of the time, meeting up with colleagues once a week in the City offices, when there you can you enjoy a range of facilities including large kitchen, café, roof top bar, showers and all the latest kit to work on.

About you:

You have backend C# .Net, ASP.Net MCV application development skills

You also have experience with TypeScript, Angular or React

You have a good understanding of Docker for Containerisation

You have a good knowledge of cloud based systems (Azure / AWS)

You have strong analysis and problem solving skills

You’re collaborative with great communication skills

What’s in it for you:

As a Software Developer / Engineer (C# TypeScript) you will earn a competitive package including:

Salary to £55k + bonus

Pension, Private Health Care, Life Assurance, Travel Insurance

Enhanced maternity and paternity scheme

Learning opportunities via training, hack-a-thons, tech talks

Perks such as health and well being allowance, cycle to work scheme, season ticket loan, flexible working, diverse team environment and much more

Apply now to find out more about this Software Developer / Engineer (C# TypeScript) opportunity.

Senior Frontend Engineer

$8k-$10k

A full-time role for a senior engineer.

It’s your chance to take full ownership of frontend projects from design to delivery with minimal supervision!

About Ballerine

Ballerine is a high-growth, early-stage startup building an open-source platform for identity verification and risk management in the financial sector.

It’s a fast-paced team preparing for Series A funding - and looking for a Senior Frontend Engineer to join our core team.

• Senior engineer

• Ready to thrive in startup environments

• English (C1+)

• Deliver independently while collaborating with a world-class team

Requirements

• 7+ years of commercial engineering experience (only truly senior-level candidates will be considered)

• Proven startup experience (corporate-only backgrounds will not be considered)

• Expert-level proficiency in React, TypeScript, modern frontend frameworks and architectures

• Strong understanding of state management, performance optimization, and scalable component-driven design

• Experience with testing frameworks (Jest, Cypress, Playwright)

• Comfort with open-source principles and contributions

• Clear, confident communication in English (minimum C1, no heavy accents)

• Ability to onboard quickly and deliver at startup pace

• Proactive, independent, and ownership-driven mindset

With Us

• Competitive monthly compensation

• Chance to join a core team pre-Series A, shaping the product and the company’s direction

• Work on complex, high-scale challenges with cutting-edge tools (LLMs, AI, open-source)

• A culture where your voice matters - small team, high impact, no bureaucracy

• Opportunities for technical leadership and direct influence on strategy

• Fully remote role

Responsibilities

• Architect, develop, and maintain scalable frontend applications using React, TypeScript, and modern FE tooling

• Build reusable and performant UI components following best practices

• Ensure accessibility, cross-browser compatibility, and responsiveness across devices

• Collaborate closely with design and product teams to deliver pixel-perfect, user-centric features

• Optimize applications for maximum speed, scalability, and reliability

• Implement robust testing strategies (unit, integration, end-to-end)

• Stay ahead of industry trends, evaluating and adopting new technologies where relevant

• Contribute to open-source initiatives and foster a culture of clean, maintainable code.

Ready to collaborate closely with technical and non-technical stakeholders?

Join Ballerine and help shape the future of fintech identity verification!

Senior Front End Developer React - Fintech

Senior Front End Developer / Engineer (React TypeScript Data Visualisation) London to £80k

Are you a skilled Software Developer with strong React and Data Visualisation skills combined with a good appreciation of financial markets and technology?

You could be joining a growing, global, Fintech services company that has seen 30-40% year on year growth for the past 10 years and has ambitious growth plans.

As a Senior Front End Developer you’ll design and develop new features and enhancements to the front end of the platform with a focus on real-time data visualisation on client dashboards and portals using React, there’s approximately 70-80% Greenfield development. You’ll collaborate with backend engineers to build complex financial products in a technology driven environment with lots of learning and self development opportunities.

Location / WFH:

You’ll join the team in Central London three days a week with flexibility to work from home the other two days.

About you:

You have a strong knowledge of software engineering best practices and Computer Science fundamentals such as OOP, Data Structures, Design Patterns

You have expertise with React and strong TypeScript skills

You have experience with data visualisation and have worked on complex systems

You have a good understanding of financial markets, ideally with experience in a similar Fintech environment

You have an appreciation of APIs and Python backend systems

You’re degree educated, having achieved a 2.1 or above in Computer Science or similar technical discipline

What’s in it for you:

As a Senior Front End Developer you will receive a comprehensive package including:

Salary to £80k

Private Medical Healthcare including Dental and Vision cover

Pension

Share Option scheme

Employee Wellness Programme

Summer time hours

£2k personalised training budget

Apply now to find out more about this Senior Front End Developer / Engineer (React TypeScript Data Visualisation) opportunity.

Senior Developer, Full Stack

Senior Developer, Full Stack (Next.js, React Native)

I’m working with a fast-paced, tech-focused, global technology platform that’s undergoing a multi-year transformation program to revolutionize its B2C services. Backed by substantial investment and part of a financially stable group, this company is embarking on a multi-year transformation program, making now the perfect time to join their journey.

Location: Hybrid - 2-3 days per week in London

Salary: £80,000 - £85,000

Type: Full-Time, Permanent

Why This Role?

Global Impact: Operating in key markets across the UK, US, Australia, and Europe, with significant backing.

Exciting Transformation: Recently redesigned their platform. Join at the start of an ambitious growth phase, a cutting-edge, automation-first approach.

Culture of Innovation: Work in a fast-paced, start-up-like environment with a strong focus on employee wellbeing and collaboration.

What you will do

Develop and maintain web applications that serve global marketplaces.

Creating B2C/B2B experience on their web application.

Cross functional collaboration to design and implement user-friendly interfaces.

Optimizing application performance and ensure responsiveness across various devices.

Working with overseas internal development team for knowledge transfer, reviewing code to help and guide other engineers.

Ensuring best practises working in an Agile/Scrum/Kanban environment.

Requirements

Proficiency in React, React Native, and Next.js is a strongly required.

Proficiency in Frontend technology i.e. Javascript, Typescript, HTML, and CSS.

Familiar with RESTful APIs and GraphQL

Experience with Backend such as Python and mySQL or similar.

Experience architecting web applications and supporting underlying CI/CD platforms.

Consider the reusability of code, components, and module development while writing code.

Experience mentoring junior engineers.

Understands testing such as Vitest, React Testing Library and Playwright.

Experience working in AWS.

You have a Start-up mentality.

Front End Engineer React - Hedge Fund

Front End Engineer / Developer (React v19 TypeScript) London / WFH to £95k

Are you a Front End technologist looking for an opportunity to progress your career in a hands-on role with lots of learning opportunities?

You could be joining a Hedge Fund with complex work and substantial bonus earning potential.

As a Front End Engineer you’ll join a globally distributed team to develop engaging and simple user interfaces across all internal business systems. You’ll collaborate with UX and Product teams, actively participating in all stages of a project, through product design, development, implementation, testing and maintenance.

Location / WFH:

You’ll join colleagues in the impressive Central London office with flexibility to work from home twice a week.

About you:

You have strong Front End development skills with React (they’re using v19) and TypeScript

You are experienced with other web technologies such as HTML, CSS, Web APIs

You have a strong knowledge of Computer Science fundamentals including OOP, Design Patterns, Data Structures

You have experience of working in large, fast paced organisations

You are collaborative with great communication skills

You are degree educated, having achieved a 2.1 or above in Computer Science or similar technical discipline

What’s in it for you:

As a Front End Engineer you will receive a competitive package:

Salary to £95k

Bonus

Pension

Self development and career progression opportunities

Apply now to find out more about this Front End Engineer / Developer (React v19 TypeScript) opportunity.

Mid-Level Software Developer

Software Developer - £80,000 - Bonus - Hybrid OverviewA global digital marketing and technology agency specialising in online gaming is seeking a Software Developer to join its high-performing development team. This role offers the opportunity to work on scalable, high-throughput systems that power real-time user experiences in the iGaming sector.You’ll play a key part in the next stage of their platform evolution, helping to build a premium look and feel for customer-facing sites.Role and Responsibilities

Work across the full stack, with an even split between frontend and backend development.

Contribute to the transition from a PHP-heavy stack towards TypeScript/React-based frontend applications.

Deliver scalable, performant, and reliable solutions for high-traffic platforms.

Collaborate with designers, product teams, and fellow engineers to raise the standard of customer-facing experiences.

Write clean, testable code and follow modern development best practices.

Contribute ideas for technical improvements and new greenfield builds.

Essential Skills and Experience

Strong commercial experience with PHP (backend).

Solid hands-on skills with TypeScript and React (frontend).

Exposure to Node.js or NestJS desirable (but not essential if TypeScript is strong).

Background in greenfield development projects

Comfortable working in collaborative, agile teams.

DevOps/cloud experience (e.g., Docker, AWS) is a bonus.

Package

c£80,000

Discretionary bonus

Hybrid (4x week in London)

Benefits: Private healthcare & dental, pension scheme, income protection, stock options, gym & yoga studio, wellness initiatives, retail discounts, 25-30 days holiday, and more.

.NET Analyst / Developer

.NET Analyst Developers - remote and global client.

Excellent opportunity to join this innovative and global SAAS company (who are leveraging Artificial Intelligence to drive innovation)

You will bridge the gap between business stakeholders and technical implementation, will work directly with clients to understand requirements, design solutions within the SAAS platform, and implement those solutions through coding, configuration, and integrations with CRM, ERP, and approval systems. This role is ideal for someone who thrives in both business analysis and hands-on technical delivery, ensuring that customer needs are met with practical, scalable, and maintainable solutions.

Skills / experience

Strong background in .NET development (C#, Web API) ideally with experience in building scalable business applications

Experience with NoSQL (RavenDB preferred) and/or relational databases.

Worked on back-end / business systems

Desirable

Experience working with ERP / CRM systems / CRM integration projects

Angular (or React)

Keen interest/skills in AI tools and trends

Experience with IT services and / or managed services industry.

Consulting experience

Prior involvement in CPQ or ERP transformation programs.

Responsibilities:

Full SDLC

Collaborate with a team using agile development methodologies, participating in daily stand-ups, and contributing to project planning and execution.

Write clean, readable, and maintainable code while adhering to design patterns and architectural principles for scalable applications.

Apply strong knowledge of object-oriented programming, design patterns, and best practices.

Participate in fortnightly scrum planning and work on allocated story points.

APPLY NOW FOR FULL JOB SPEC AND DETAILS - EXCELLENT OPPORTUNITY

Do you like building scalable software and solving complex problems? Are you excited by the chance to work with modern technologies and shape the future of innovative platforms?

We’re working with a growing tech scale-up who are looking for a Software Engineer to join their team. This is a fantastic opportunity to work across the full stack, contribute to exciting new features, and help improve the infrastructure behind a cutting-edge platform - all within a supportive, collaborative environment.

Responsibilities

As a Software Engineer, you will

Design, develop, and maintain scalable features across frontend and backend systems.

Contribute to DevOps practices, including CI/CD pipelines and infrastructure automation.

Collaborate with product and design teams to deliver intuitive user experiences.

Participate in code reviews, architecture discussions, and troubleshooting to ensure best practice.

Requirements

As a Software Engineer, you will need

Experience in full-stack development with JavaScript/TypeScript (Node.js, React).

Knowledge of a statically typed language such as Go, plus cloud infrastructure (AWS or similar).

Familiarity with containerised applications and Kubernetes.

Strong understanding of architecture, scalability, and delivering high-quality code.

Desirables

As a Software Engineer, can you

Bring 3+ years of professional engineering experience.

Work with GraphQL, gRPC, or REST API design.

Apply knowledge of relational databases such as MySQL or PostgreSQL.

Demonstrate exposure to AI integrations or enterprise SaaS platforms.

If you want to take ownership of your work, build innovative software, and be part of a fast-moving tech team, APPLY NOW!

Rutherford Briant is passionate about equity, diversity, and inclusion. We seek individuals from the widest talent pool and encourage underrepresented talent to apply to vacancies with us. We are committed to recruitment processes that are fair for all, regardless of background and personal characteristics.

FDM is a global business and technology consultancy seeking a C# Developer to work for our client within the advisory and consultancy sector. This is initially an 8-month contract with the potential to extend and will be a remote role with occasional trips to London.

Our client is looking for a C# Developer who would be working on a range of projects, both idea and concept experimentation as well as product MVP development. You will be providing expertise in Software Development best practice, in line with the organisation’s standards and processes, as well as being an active developer-participant.

The ideal candidate will be expected to have significant experience of .NET and will work under the technical steer of a Senior Developer. Preferably, you will have Full stack experience, with React for front end work, and have exposure to GenAI/Agentic AI as well as LLMs.

Responsibilities

Work collaboratively using the Agile methodology to deliver software products while validating user stories and acceptance criteria

Create quantifiable estimates while actively participating in workshops, design sessions

Plan poker estimation sessions, as well as Agile ceremonies, such as daily stand-ups, sprint planning, reviews and retrospectives

Work closely with Innovation Managers, Digital Product Delivery Lead and the Digital Product Management team, to ensure a successful design, development, test as well as delivery of the software product

Ensure Development, AI and Digital Product Delivery adhere to best practices, agreed standards, policies and procedures, as well as governance and compliance are adhered to

Adopt a continuous learning and improvement mentality, promoting an innovative culture, staying up to date with trends

Build and maintain early-stage product ideas/concepts using C# and .NET

Contribute to full stack development using React for front end work while integrating AI driven features

Requirements

Minimum of 5 years’ experience as a C# Developer with proficiency in Python, .NET framework and C# as well as experience with ML.NET, ASP.NET, MVC, Web API Containers (Docker/Kubernetes), Machine Learning Operations (MLOps) and CI/CD

Good knowledge of IT industry trends (especially GenAI and AgenticAI), suppliers, platforms and products

Post productions MLOps, Model retaining and Drift monitoring in Azure with knowledge of Microsoft Azure

Strong understanding of object-oriented programming and familiarity with front-end technologies like HTML, CSS, React and JavaScript, JSON

Strong command of SQL for database management, query optimisation and No SQL databases

Experience in Python Programming and data visualisation using PowerBI or similar tools

Exposure to applying ML algorithms, libraries or frameworks and build models to predict outcomes and automate processes

Significant experience working within an Agile software development and delivery process. Comfortable participating in backlog estimation, planning poker or sprint planning sessions.

Knowledge of working with a product backlog with Microsoft ADO, Jira or equivalent. Familiarity with MoSCoW prioritisation and software development estimating principles and process.

Strong problem management skills with the ability to navigate complexity, analyse alternative approaches using advanced analytical and interpersonal skills

Ability to have strong focus, make data-driven decisions, be innovative with critical thinking skills and solid attention to detail

Excellent written and verbal communication skills, presenting to an audience in both formal and informal situations, confident and respectful of the organisation’s values, with demonstrable skills in influencing and negotiation

Desirable

Knowledge of CrewAI, UiPath, Semantic Kernel, Co-Pilot, GPT-models

Why join us

Career coaching, mentoring and access to upskilling throughout your entire FDM career

Assignments with global companies and opportunities to work abroad

Opportunity to re-skill and up-skill into new areas, develop non-linear career paths and build a skillset within your field

Annual leave and work-place pension

About FDM

We are a business and technology consultancy and one of the UK’s leading employers, recruiting the brightest talent to become the innovators of tomorrow. We have centres across Europe, North America and Asia-Pacific, and a global workforce of over 2,500 employees. FDM has shown exponential growth throughout the years, firmly establishing itself as an award-winning employer and is listed on the FTSE4Good Index.

Diversity and Inclusion

FDM Group is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, colour, religion, sex, sexual orientation, national origin, age, disability, veteran status or any other status protected by federal, provincial or local laws.

Sitecore Lead

Opus Recruitment Solutions Ltd

**Sitecore Lead / 6 months / Remote / £450-£550pd (Outside IR35)**I am currently looking for a Sitecore SME to join a digital agency client of ours and sit across mutliple projects they are working on. This will be 6 months initially, fully remote and has been determined outside IR35. Skills & experience needed:

Sitecore 10, Sitecore XM experience

Experienced in client facing roles, leading development and acting as a technical lead

Storybook, React, Experience Editor (all beneficial)

For this position we can wait up to 2 weeks. So if interested and feel yourself well suited, please apply with your latest CV and I will be in touch to discuss in more detail.

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