developer python javascript jobs in Newcastle upon Tyne

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...

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...

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...

We are currently recruiting full stack developers to join a trading technology team at a leading investment firm. This team is responsible for building a new front-office trading platform used directly by traders and quants. These roles are best suited for candidates with experience in full stack development using React and Python and particularly those who have built trading platforms from the...

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 fast growing technology company building a production grade platform that enables advanced AI driven products.

You will have real ownership, influence over technical decisions and the space to build things the right way.

You will be trusted to take responsibility across the stack, including

We're expanding our engineering team and hiring a Senior Python Software Engineer to help own and develop an established trading-related application. The system runs in production, processes high-frequency real-time data, and needs careful performance engineering and disciplined testing to keep latency and reliability where they should be. You'll take meaningful ownership day-to-day, partnering...

You will be responsible for the entirety of the back end features of the products.

You will be in charge of building scalable backend services and awesome messaging queues.

You will be responsible for developing a Python-based back end platform that's handling 100,000+s of interactions daily.

As a Senior JavaScript Developer, you will join a cross-functional Scrum Team working collaboratively in an Agile environment. You'll help drive key front-end and back-end JavaScript technology decisions and build maintainable, scalable solutions for our clients. This role offers strong opportunities for continuous learning, technical ownership, and growth as a well-rounded...

Job Description 💻: GIS Development 🏢: Leading Global Marine Company 🍃: Offshore Wind 📌: Remote - 1 trip per month to the office An established geoscience and offshore energy consultancy is looking for a Geospatial Developer to join its UK-based team, with opportunities to work from Newcastle, Aberdeen, Glasgow or London 🌍 This role is ideal for someone who enjoys turning complex spatial...

Job Title: Python Developer Location: Birmingham OR Sheffield (3 days per week on-site) Start Date: Jan / Feb 2026 Job Type: 12-month (Inside IR35 Contract) Company Introduction: We are currently recruiting for a Python Developer with experience in API development for an exciting contract at our global client in the finance sector. Required Skills/Experience: * Hands-on experience with API...

About TriloDocs TriloDocs is a growing company at the intersection of technology and life sciences. We help pharma and healthcare organizations transform scientific data into clear, structured documents. Our team is passionate about creating intuitive, reliable tools that make a real difference. The Role We're looking for a Mid-Level to Senior Python Developer with a strong STEM background —...

Software Engineer (Contract) – Python / FastAPI 6 Month Contract - Fully Remote Daily Rate: £500 Outside IR35 Contact: Matthew.Makranczy@forsythbarnes.com We're looking for experienced AWS Software Engineer (contractors) to join an established platform engineering team and help take a proof-of-concept Identity & Access Management (IAM) system into production. This is a hands-on engineering...

You will provide professional consulting services working onsite for start-ups, medium and large sized companies.

You will be working on large complex projects so you should be comfortable dealing with demanding stakeholders and providing time driven results.

You should be entitled to work in the UK with legal work authorization status.

You must speak, write and be able to understand fluent English. - Deep knowledge and regular usage of Firebase suite, especially Firestore. - Strong proficiency in TypeScript and modern JavaScript (ES6+).

You must enjoy constantly learning and researching to improve your level of expertise.

Job Description Coffee Design’s vision is to be a leading creative partner where collaboration and innovation drive exceptional results for our clients and their brands. We’re looking for a Full-Stack Developer with a passion for building seamless, high-performing digital experiences. You’ll play a key role in bringing our creative ideas to life—developing both the front-end and back-end of...

Coffee Design’s vision is to be a leading creative partner where collaboration and innovation drive exceptional results for our clients and their brands. We’re looking for a Full-Stack Developer with a passion for building seamless, high-performing digital experiences. You’ll play a key role in bringing our creative ideas to life—developing both the front-end and back-end of websites,...

Lead Backend Engineer / Developer (Python TypeScript API) Newcastle onsite to £150k Are you a technologist who enjoys liaising with clients, looking for a new opportunity? You could be joining a scaling FinTech within the consulting division of the Newcastle office. What's in it for you: - Salary to £150k + Bonus - 25 days holiday - Bupa healthcare - Generous pension contribution - Continuous...

You must be able to demonstrate the following: ● 6+ years experience full-stack development ● High proficiency with Typescript, React, Next, Azure, Pulumi and Node ● Experience building secure applications ● Good experience writing unit and integration tests with tools like Mocha and Jest ● Ability to deploy and manage our back-end and front-end ● Experience using Supabase