lead javascript developer jobs in Slough

C# Developer / Full Stack Engineer (.Net Core JavaScript) St Albans / WFH to £100k Do you have expertise with C# .Net backend development combined with JavaScript skills? You could be progressing your career in a senior hands-on role at a technology driven trading company that invest in Sports betting markets with a flat structure where you will get your voice heard and can make a real impact...

React Native Developer - Hybrid - Outside IR35 | React Native | FinTech | JavaScript | TypeScript We’re working with a fast-growing FinTech in London that’s building next-generation mobile products used by thousands of customers daily. They’re looking for an experienced React Native Developer to join the team on a contract basis, contributing to high-impact features across their mobile...

About Us: We're a forward-thinking technology company building innovative web solutions using modern development practices. Our team values continuous learning, collaboration, and cutting-edge technology to create exceptional digital experiences. Position Summary: We're seeking an enthusiastic Entry-Level JavaScript Developer to join our dynamic team on a contract basis. This is an excellent...

Position: Front End JavaScript Developer Reports to: Front End Development Team Lead Hours: 40 hours Location: 3 days in North London office (Monday – Wednesday) Salary: £60 - £80,000 + eligibility for performance bonus Start date: ASAP Purpose of the role: As a Front End Developer you will join one of our multinational Scrum teams to create state-of-the-art software solutions. In all...

You will be a great fit if you: - Have 5+ years full-stack experience, with strong JavaScript/TypeScript depth. - Are backend-leaning, with deep Node. js and API experience. - Have previously worked in early-stage start-ups or very lean engineering teams. - Have extensive evidence of being a hands-on individual contributor in complex codebases.

You will be expected to: ● Develop new features working with the data science ● Develop bug fixes and security patches promptly

You must be able to demonstrate the following: ● 6+ years experience full-stack development ● High proficiency with Typescript, React, Next, Azure, Pulumi and Node

You will be joining a company that aims to set a progressive industry agenda and is becoming an increasingly provocative, disruptive, and modernising voice.

You will be representing a service that includes pitch consultancy and a powerful marketing intelligence platform.

You will manage one direct report, with the opportunity to shape and build a small team as the function grows.

You will establish the sales process, digital presence and lead generation capability required to create consistent pipeline, convert enquiries into profitable work, and support scalable growth. The role requires someone who has previously built business development capability from first principles and can take full ownership of pipeline creation, conversion and performance tracking.

You will oversee the procurement, management, and review of key HR contracts—such as managed service providers and HR systems—ensuring they consistently deliver exceptional value and performance.

You will be responsible for:

You should possess excellent financial planning and business modelling experience, along with a good understanding of sales-driven business models.

You will position INTEC as the EPC partner of choice, driving strategic partnerships and securing large-scale projects. Key Responsibilities 1. Market Strategy & Growth - Define and execute INTEC’s UK solar EPC business development strategy. - Identify high-value solar PV and BESS opportunities and emerging market trends.

Development Lead/ Technical Manager (Director) - Up to £150,000 + Bonus + Package 📍 Location: London (Hybrid) | 🏦 Industry: Banking & Financial Services We’re looking for an experienced Technology Manager to lead high-performing engineering teams within our bank’s core technology function. This role is ideal for a hands-on leader with deep C#/.NET expertise who enjoys shaping technical...

We are currently partnering with a market-leading Insurance company, to recruit a Business Development Lead. This role serves as the local partnerships "hunter" for a specific geography, responsible for developing and delivering the local partnership pipeline in line with the wider Wholesale strategy. Responsibilities include but are not limited to: - Manage the full business development...

We are looking for an experienced Kotlin & Swift Developer with strong computer vision experience to design, build, and maintain a high-performance Software Development Kit (SDK) used in security-critical mobile applications. This role sits at the intersection of mobile engineering, applied computer vision, and SDK architecture, and will play a key role in delivering reusable, secure, and...

Lead Mobile Developer (Flutter) 📍 Remote-first (UK-based) 💰 £65,000 – £85,000 DOE We’re a fast-growing tech company building digital products that power some of the UK’s largest contractors. Our mobile apps are used every day on site — and we’re looking for a Lead Mobile Developer to help us take things to the next level. What you’ll do - Lead the design & development of Flutter apps for iOS...

Lead Backend Developer – Node.js, TypeScript, Kafka - up to £80k Leading E-commerce Brand | Up to £80,000 | Hybrid (2 days/week in London) A leading e-commerce client is looking for a Lead Backend Developer to help shape the technical direction of a highly scalable, event-driven platform. This role combines hands-on development with technical leadership, working in a Node.js, TypeScript and...

You will tackle technical challenges that bridge software engineering with real-world manufacturing processes. This role blends hands-on technical expertise with leadership responsibilities, offering both team mentorship and active involvement in architecture, design, process improvement, and code review.

About Us We are a fast-growing fintech company building modern, scalable platforms that power real-world financial products. Our engineering culture values clean architecture, strong ownership, and pragmatic innovation. We operate in a cloud-native, microservices environment and invest heavily in frontend quality, design systems, and developer experience. The Role As a Lead Fullstack Engineer,...

[Up to c. £300k Comp Package | Hybrid Working] Role Overview We’re working with a high-growth trading and digital-assets firm seeking a seasoned engineering leader to take ownership of their client-facing technology ecosystem. As the organisation expands into new markets and contends with evolving regulatory demands, this role will spearhead the architecture and delivery of platforms that...

Position: Front End JavaScript Developer Reports to: Front End Development Team Lead Hours: 40 hours Location: 3 days in North London office (Monday – Wednesday) Salary: £60 - £80,000 + eligibility for performance bonus Start date: ASAP Purpose of the role: As a Front End Developer you will join one of our multinational Scrum teams to create state-of-the-art software solutions. In all teams we...

Full Stack Engineer (JavaScript) – Tech Start-Up Remote (UK-based only) | Flexible Hours c£90k + Benefits (Pension, Private Healthcare, Death-in-Service, Equity Potential) We’re looking for a senior, backend-leaning Full Stack Engineer who thrives in the controlled chaos of a true early-stage start-up, the kind where there’s no QA team, no DevOps team, no predefined frameworks, no hand-holding ,...