72,484+ Software Javascript Developer Jobs in UK — Top Companies Hiring July 2026

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Lead Software Engineer

Lead Software Engineer Locations: Glasgow or Edinburgh (must be willing to travel to client sites throughout the UK on an ad hoc basis). Salary: Competitive salary and package (Depending on level of experience). Please Note: Any offer of employment is subject to satisfactory BPSS ...

Senior Software Engineer

Job Description Summary GE Vernova’s Power Conversion & Storage business provides electrification systems that are critical to customers’ power and energy needs for their high-performance applications. We work with some of the world’s major energy, maritime and industrial organizations, helping t ...

BMS Software Architect

At Tata Technologies we make product development dreams a reality by designing, engineering and validating the products of tomorrow for the world’s leading manufacturers. Due to our continued growth we are now recruiting for a BMS Software Architect to be based at our customers site in Coventry. Our Embedd ...

Senior Software Engineer

Salary: £50,000 - 60,000 per year Requirements Experience with embedded C software (Low-Level Development) Strong knowledge of GNU/Linux systems Proven track record with network technologies Proficiency in scripting languages (Python and Bash) < ...

Senior Software Engineer

We are Ultra Precision Control Systems Ultra PCS is a leading developer of mission and safety critical equipment in the defence and aerospace industry. Our team of experts are at the heart of our success, which is why we are dedicated to fostering a safe working environment and a positiv ...

Senior Software Engineer

Senior Software Engineer| Hybrid | Belfast The Opportunity This is a hands-on development role where you'll contribute to the evolution of a large-scale platform used by thousands of end users. You'll be involved in building new customer-facing applications, enhancing existing systems, ...

Senior Software Engineer

Job Description Summary GE Vernova’s Power Conversion & Storage business provides electrification systems that are critical to customers’ power and energy needs for their high-performance applications. The company works with major energy, maritime and industrial organizations to enable a transitio ...

Software Engineer, Agent

About Us At Sierra, we’re creating a platform to help businesses build better, more human customer experiences with AI. We are primarily an in-person company based in San Francisco, with growing offices in Atlanta, New York, London, Paris, Madrid, Munich, Singapore, Japan, and Sydney. ...

Software Engineer Data

Your Mission Field is an Energy Storage Provider that operates across the value chain from project development through to asset management and trading. At the heart of Field’s operations and trading sits GAIA, our in‑house automated energy trading platform which makes hundreds of decisions a day ...

Software Engineer (Adoption)

Who are we? Cohere is the leading security-first enterprise AI company. We build cutting-edge foundation AI models and end-to-end products that are designed to solve real-world business problems. We’re training and deploying frontier models for enterprises who are building AI system ...

Principal Software Architect

Principal Software Architect Whitespace (a Verisk business unit) Hybrid About Verisk Verisk is a global leader in data analytics and technology, helping businesses make better decisions and drive real-world impact. With a strong presence in the insurance and risk markets ...

Senior Software Engineer

Cardiff, GBR, CF10 1FTGlasgow, GBR, G511DALondon, GBR, W1A 1AANewcastle-upon-Tyne, GBR, NE991RNSalford, GBR, M50 2QH JOB DETAILS JOB TITLE: Senior Software EngineerJOB REF: 47677JOB BAND: DCONTRACT TYPE: Permanent, Full-timeDEPARTMENT: Engineering E ...

Senior Software Engineer

Role As a Senior Software Engineer, you will help automate and optimize financial workflows for SMBs. You will build and scale Tipalti’s third‑party integration capabilities, working closely with Product, Design and external partners to design and deliver highly scalable systems. Responsib ...

Senior Software Engineer

Position Details Contract Type: Permanent Location: Alderley Park Working style: Hybrid 50% home/office based Role Overview We are seeking a skilled and experienced Azure DevOps Senior Engineer to play a crucial role in building business-c ...

Software Engineering Manager

Edinburgh (Hybrid) | £80,000 - £100,000 + Bonus + Excellent Benefits We're partnering with an innovative technology business that is making a major investment in Edinburgh, building a brand-new engineering hub of 15-20 software engineers focused on developing cutting‑edge video security technology ...

Senior Software Engineer

Senior Software Engineer - Manchester - Bi Weekly - £80k - TypeScript, React, AWS, .NET Do you want Build products used by millions that shape experiences that customers interact with every day? Are you the type of Engineer with product at the heart of everything you do and want to create t ...

Senior Software Engineer

A well‑funded, fast‑growing AI startup is hiring a Full‑Stack Product Engineer to help build the next generation of operational software in a large, legacy industry being transformed by automation. This is an opportunity to join early, work directly with founders, and own high‑impact product ...

Senior Software Engineer

Salary: £50,354 to £60,036. This includes a basic salary, skills payment, and a concessionary payment of £2,758. The final amount depends on your skills and experience. You’ll also receive a one‑off recruitment bonus of £3,500, split into two payments: £1,750 on arrival and £1,750 after successfull ...

Senior Software Engineer

As a Senior Software Engineer here, you won't be working on just another platform. You'll be joining an AI SaaS leader that's redefining how organisations attract, engage and empower their workforce through intelligent technology. This is a business where AI isn't a future initiative, it's embedd ...

Senior Software Engineer

Design, implement, and manage deployment processes for our product in cloud and virtualization environments. Develop automation tools and processes to facilitate the migration of legacy customer systems to the latest software versions. Build pre and post install validation checks < ...

Senior Software Engineer

I am delighted to be working with a series‑funded and revolutionary AI SaaS platform, based in London, looking to grow its engineering team with a Senior Python Engineer. My client works on a hybrid model with 1 day in the office with the engineering team but you are more than welcome to come in for 2 or 3 ...

Lead Software Engineer

Location: Brentwood (2-3 days a week onsite) About Ovyo Ovyo is a B2B services company providing flexible engineering teams and talent solutions to the streaming, media, satellite, and communications industries. With a global presence across multiple locations (UK, India, Portugal ...

Lead Software Engineer

Job Title: Software Engineer Job Description This role focuses on partnering closely with a product owner to design and deliver an automated solution for a currently manual Request for Proposal (RFP) process. You will prototype the solution, then scale and harden it into a r ...

Lead Software Engineer

Saab UK is part of Scandinavia’s largest defence company, bringing together the best of Swedish and British innovation. Saab offers world‑leading solutions and services in defence, aviation, space, and civil security to keep people and society safe. Our UK presence has been growing at pace, meaning we can ...

Software Engineering Manager

We're working with a series A startup building an AI operating system for private capital. They build AI agents that automate the grind of due diligence, research and portfolio monitoring, with every insight traced back to its source. The platform is already in production with multi-billion-dollar ...

Senior Software Engineer

Are you a talented Senior Software Engineer looking for an exciting new challenge? STS Defence is seeking a Senior Software Engineer to join our dynamic Programmes Division in Gosport. As a Senior Software Engineer, you will play a pivotal role in the design, development, and implementation of adva ...

Senior Software Engineer

Requirements Bachelor's degree in Computer Science, Mathematics related technical field, or equivalent practical experience 4+ years work experience with back-end applications Solid understanding of Javascript Familiarity with Node.js < ...

Senior Software Engineer

At DraftKings, AI is becoming an integral part of both our present and future, powering how work gets done today, guiding smarter decisions, and sparking bold ideas. It’s transforming how we enhance customer experiences, streamline operations, and unlock new possibilities. Our teams are energized by innova ...

Senior Software Engineer

G MASS are currently looking for an experienced Software Engineer to join a leading Investment Manager client. This role sits within a core engineering team at the centre of a highly quantitative investment environment, supporting the technology and data platforms that underpin systematic trading strategie ...

Software Architect (M365)

We are seeking a highly skilled and experienced M365 Architect to join our dynamic team. The ideal candidate will have a strong background in Microsoft full stack technologies, including Exchange, Intune, Security, SharePoint, OneDrive, Teams, Copilot Studio , Power Platform, and Dataverse. As an Ar ...

Software Engineering Manager

Software Engineering Manager Location: London | Type: Permanent, Full-Time | Working Pattern: Hybrid Lead Engineering Excellence in a High-Growth Data & Technology Business We’re partnering with a fast‑growing global data and technology organization that deli ...

Senior Software Engineer

Some roles give you a better salary. Some give you a better story. This one has the potential to do both. I’m hiring multiple Senior Full Stack Engineers for a Series A Scale Up in Central London that is moving quickly, building with AI as a real part of the product, and led by people who k ...

Senior Software Engineer

About IMU Biosciences IMU Biosciences has developed proprietary platform technologies that generate and translate vast system-level immune data into actionable insights and tools to drive the development of precision medicines across a variety of diseases. Built on over a decade of research at Ki ...

Senior Software Engineer

Adarga builds AI systems for customers working in Defence, Security and Resilience. With a core focus on our multimodal data fusion platform, we combine the value of humans and agents to transform information overload into decision advantage. Our team is a hybrid of domain specialists and technolog ...

Software Engineer, International

About the company the company is building the smart infrastructure for finance teams, embedded in the transaction flow of every dollar a business spends. We automate how over $200B in annualized spend flows in and out of 70,000+ companies: authorizing payments, flagging risk, categorizing spend, ...

Software Engineer Romsey

Salary: £55,000 - 60,000 per year Requirements Degree in Engineering, Computer Science, or related field Experience across the full software development lifecycle Knowledge of sensor and communication systems Strong skills in languages such as C ...

Specialist Software Engineering

Role description Role: Java & CloudNative Location: London / Warsaw – 3 days from office Type: Perm/FTE Job Summary Seeking a Specialist with 5 to 7 years of experience in Core Java React and cloud native technologies to design, develop, and maintain scalable applicat ...

Principal Software Engineer

About our Team RX Global aims to create unforgettable experiences for attendees and exhibitors through organizing events. Innovation, creativity, and collaboration drive the company to offer exceptional services to clients. About the Role As a Principal Engineer, you will help t ...

Chief Software Engineer

Salary Range: £80,000 - £90,000. Leonardo UK operates a grade-based salary framework with broad bands. The salary range shown reflects the approved grade band for this role, or a narrower hiring range published within that band, and is benchmarked against the external market. Exceptions above the standard ...

Principal Software Engineer

Principal Software Engineer Location: Heybridge The role of a Software Engineer is to be part of the Software Systems Capability function, where you will specify, design, validate and test software components, including low-level requirements for the software and source code. The ...

Founding Software Engineer

We are building the LLM platform that will power tomorrow's AI-first companies. A single platform that allows any LLM user to integrate, scale, secure and optimize their LLM inference across 200+ providers in a few clicks. A highly scalable, reliable and secure infra that exposes simple, Op ...

Web Software Engineer

Virgin Active are committed to changing people's lives for the better through wellness. Our team are dedicated to delivering a unique leisure and relaxation experience throughout all our clubs. All our team members pride themselves on incorporating Virgin Active values and ensuring the highest Brand Standa ...

Embedded Software Engineer

Senior Embedded Software Engineer Location: Norwich, NorfolkSalary: Competitive + Benefits About the Opportunity KO2's client, an innovative engineering company developing advanced systems, is seeking an experienc ...

Application Software Engineer

Application Software Engineer 12-month contract Onsite in Bristol SC must be in place prior io starting £65ph, UMB, inside IR35 Our client, a leading organisation in the Defence & Security ...

Principal Software Engineer

Our client, a global leader in radiation detection and identification within the technology sector, is currently seeking a Principal Software Engineer to join their team in the UK. This permanent, full-time position offers the exciting opportunity to work on cutting-edge projects, driving both innovation ...

Software Engineer eDV

eDV Cleared Technology ProfessionalsCheltenham | Multiple Opportunities | Competitive SalariesWe're currently supporting a number of organisations across the National Security and Defence sector and are keen to speak with eDV (Enhanced Developed Vetting) cleared professionals. </ ...

Software Release Engineer

At Tata Technologies we make product development dreams a reality by designing, engineering and validating the products of tomorrow for the worlds leading manufacturers. Due to our continued growth we are now recruiting for a Software Release Engineer to be basedat our customers site in Wo ...

Embedded Software Engineer

An innovative company based in the Manchester area is looking for anEmbedded Software Engineer . Were looking for an experienced engineer thats comfortable working in embedded systems whilst working on some electronics hardware too.TheseEmbedded Software Engineer roles will ...

Senior Software Engineer

Senior Software Engineer When registering to this job board you will be redirected to the online application form. Please ensure that this is completed in full in order that your application can be reviewed. Within your role as Senior Software Engineer no two days wi ...

Embedded Software Engineer

Embedded Software Engineer Bristol £45000 - £55000 YT Technologies are currently partnering with Domin, a high-growth technology business that is fundamentally redefining motion control. They are combining additive manufacturing ...

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    Software Javascript Developer Jobs in United Kingdom Job Search Guide, Trends and Insights