What Jobs are available for Junior Developer Positions in the United Kingdom?

Overview

Jenoptik is an international photonics group with representatives in over 80 countries. Optical technologies are the foundation of our business. We employ around 4,000 people worldwide. Join our team and help to shape our future with lasting effect.

Web Application Developer

Job ID: 4434

Location: Farnborough, ENG, GB

Date: Oct 9, 2025

Web Application Developer

We are looking for a person that will be mainly responsible for creating and expanding the web interface for our camera products. The role involves owning the frontend and being a main driver to the backend of the product, which is the main interface customers will be using to interact, configure and debug our camera products.

This role reports to the Software Team Lead, and the person will collaborate with the other cross-functional teams, including UX software developers, systems and test engineers to refine interface designs and Project and Product Manager for roadmap and prioritizations.

About the Role:

The ideal candidate should be able to own the project, work independently and make design decisions with guidance from others on the group. This role will work closely with various departments throughout the organisation, the ability to build and maintain strong relationships will be key to effective working practices. We are looking for highly motivated individuals to continuously help improve the way we work, in serving our clients’ needs and delivering a quality service.

Location:

Hybrid Role based – A flexible mix of working from home and a couple days in the office.

Core Responsibilities and experience:

• Web App experience: 3+ years of experience in developing Web Applications, working across the frontend and backend (python) SW stack.
• React fundamentals: Deep understanding and experience in React’s component-based architecture, JSX syntax and Redux (or similar) state management libraries.
• GraphQL and API design: Building, consuming, and documenting APIs, ideally with experience in GraphQL.
• HTML/CSS skills: Crafting responsive, accessible, and visually appealing user interfaces.
• Python language mastery: Core syntax, OOP, exception handling, file I/O, etc. Knowledge of python<->C bindings valued.

Other essential skills:

• Security best practices: Authentication/authorization, input validation, secure coding, TLS and certificates
• Optimization and performance: Understanding of lazy loading, memoization, bundler configuration (Webpack)
• UX/UI design sense: Basic principles for creating user-friendly and accessible interfaces
• Version control: Working collaboratively with Git
• NPM proficiency: Managing dependencies and packages using NPM
• Testing and debugging: Unit/integration testing of frontend and backend logic, and live debugging of issues with simulators and real cameras.
• Problem-solving: Debugging, troubleshooting, and finding optimal solutions
• Effective communication: Translating technical requirements with project managers and other developers
• Continuous learning: Staying updated with latest frameworks, libraries, and best practices

Note: the candidate may also be asked to support and undertake other related duties not listed in this Job Description from time to time according to the needs of the business.

Contact:

Phone: 000

At Jenoptik, people with the specific JENIUS character are changing the world with the power of light. That demands a spirit of exploration and dedication. If you’re one of us, come meet the challenges facing the world. At Jenoptik, we’re creating a better future for all of us.

The Jenoptik Smart Mobility Solutions division offers photonics-based, innovative and sustainable solutions, including technologies and services for traffic safety, public safety and toll control.

For this purpose, Jenoptik develops, manufactures and distributes components, systems and services which contribute towards greater road traffic safety throughout the world. The product portfolio comprises comprehensive systems relating to all aspects of road traffic, such as speed measurement and red light monitoring systems, OEM (Original Equipment Manufacturer) products and systems for the detection of traffic violations.

Thanks to the digital combination of several sensor technologies with software and data management, Jenoptik is also a new systems supplier for truck toll monitoring on federal highways in Germany.

Work with us to ensure that our components, systems and services contribute to making roads and communities safer.

Have we made you interested in this position?

If so, we look forward to receiving your online application.

Should you need any further information, please do not hesitate to contact us.

Ypsilon.NET AG (Frankfurt a.M. or Leipzig, Germany)

We are looking for a self dependent, flexible, resilient PHP programmer who is willing to become part of our Development Team in Leipzig or Frankfurt a. M. area and excited to tackle new varied challenges. We offer fascinating, diversified software projects in a highly dynamic and creative working environment and long term employment with flexible working hours. We can also provide access to exclusive touristic offers only available for travel business employees.

Requirements

• You have a strong background in PHP with a minimum of on year professional experience.
• You are comfortable with Linux as development environment
• Good SQL knowledge (MySQL, PostgreSQL) is a must and basic database administrative experience is an advantage
• You should be familiar with common used version management systems, git knowledge is a plus
• You should be able to communicate in English or German

About the company

Ypsilon is a global provider of modular internet travel technology for the travel industry including airlines, consolidators, travel providers and travel agencies. With customers in over 20 countries worldwide, servicing in excess of 90,000 web based agents. Corporate headquarter is based in Frankfurt, with additional development offices in Leipzig, Germany and Breslau, Poland and a sales and support team in Burgess Hill, UK. Ypsilon .net is a PCI DSS level 1 certified company.

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Direct message the job poster from Peaple Talent

Flutter Developer | Bristol (Remote) | Permanent | Up to £65,000 p.a

Peaple Talent have partnered with a long-standing Bristol based client who are looking to recruit a Flutter Developer.

In this role, you'll be working on a well-structured, high-priority app created with modern Flutter practices. You will collaborate with product owners, designers, and fellow developers to implement features that evolve with user needs. Success in this role calls for flexibility, a keen eye for detail, and a dedication to upholding technical excellence within an Agile framework.

Key Responsibilities:

• Build and maintain our client’s mobile application to ensure top-tier quality and performance.
• Working closely with designers and product owners to craft innovative solutions that address client needs.
• Writing clear, testable, and maintainable code following best practices in Flutter development.
• Reviewing pull requests, engaging in code reviews, and taking part in technical discussions.
• Regularly improving processes, project estimations, and technical documentation.
• Troubleshooting and enhancing app performance to provide a smooth user experience.
• Sharing progress and outcomes with stakeholders.

Key Experience Required:

• Proven experience in commercial Flutter development, with positions available for developers at junior, mid and senior level.
• Proficient in Dart, with a solid grasp of best practices in mobile development.
• Previous experience with other mobile development frameworks (e.g. iOS/Android native) is highly desirable.
• Familiar with state management tools such as Riverpod, BLoC or Provider.
• In-depth knowledge of RESTful APIs and JSON for integrating with backend systems.
• Comfortable using Git and familiar with version control processes in a CI/CD environment.
• Experience with automated testing and a dedication to writing clean, testable c ode.
• Strong problem-solving abilities, attention too detail, and the flexibility to thrive in a fast-paced environment.

The Package:

• Starting basic annual salary up to £65,000 per annum.
• Discretionary annual bonus scheme.
• 25 days holiday, the option to buy/sell annual leave and the chance to earn additional days through length of service.
• Competitive pension offering.
• Healthcare Cash Plan, other wellbeing platforms.
• Enhanced family leave plan.
• Other great benefits.

If you are interested in this position, please apply directly on LinkedIn with an up to date copy of your CV. Alternatively, email for further information or to set up a call and discuss the vacancy.

• Seniority level Mid-Senior level

• Employment type Full-time

• Job function Information Technology
• Industries Technology, Information and Media

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This range is provided by MarkJames Search. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

Direct message the job poster from MarkJames Search

• Design, develop and implement custom software solutions using their Platform.
• Collaborate with our Agile Product Owners to understand client’s business processes.
• Implement integrations with external systems using REST or SOAP APIs.
• Produce high-quality solutions to agreed deadlines.
• Work collaboratively within project teams using agile methodologies (Scrum/Kanban).
• Share your knowledge within the team and with our end customers.
• Participate in and support Agile ceremonies such as sprint planning, sprint demos, and retrospectives.

• Experience with relational databases including designing data models and/or entity relationship diagrams (ERDs) for business use cases.
• Ability to understand business processes and implement solution data structures and process flows.
• Experience with REST and/or SOAP web services.
• Proficiency in Vue.js and/or Python would be a plus.
• Effective team-player with good communication skills.
• Customer First – Driven to achieve excellent results for our customers.

This is a full-time, permanent role working Monday to Friday. While the position is remote, we require candidates to be within a two-hour radius of Bedford, as you'll be expected to attend the office once every fortnight.

Our client offers an excellent remuneration package and excellent career progression prospects.

Please apply online to be considered.

• Associate

• Full-time

• Information Technology, Analyst, and Product Management

• Software Development, IT Services and IT Consulting, and IT System Data Services

We're not just delivering great products, we're building smarter, faster, and more adaptive systems that power everything we do. That's where you come in. We're recruiting for a growing IT team and are looking for a driven Application Developer who's ready to dive in, think creatively, and help lead digital transformation from the inside out.

You'll play a key role in turning ideas into working solutions. From translating business needs into thoughtful development plans to writing clean, purposeful code, you'll take ownership from initial concept through to deployment.

1. Work closely with colleagues to turn business goals into clear development strategies
2. Develop actionable project briefs with realistic timelines and transparent milestones
3. Design, build, and launch applications that help push the business forward
4. Actively debug, refine, and evolve code to keep everything running smoothly

1. A genuine passion for clean, effective code and user-friendly solutions
2. Sharp attention to detail and a practical, problem-solving mindset
3. A collaborative nature with a proactive and flexible approach

As this business evolves, so do the opportunities. This is your chance to help shape the future of tech in an environment where innovation is encouraged, independence is valued, and your contributions truly make an impact. You'll be part of a supportive team that thrives on new ideas and gives you the freedom to make a real difference.

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This range is provided by Premier Group. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

Direct message the job poster from Premier Group

Application Developer

Central London - Twice a week in the office

I’m currently working for a well-established tech consultancy business of over 70 years, arguably the market leader in their respective market, providing consultative services to industries such as healthcare, insurance, pensions, energy & sport. They are a modern, forward-thinking company that utilises technology to make their products and services stand out and stay ahead of the latest trends and releases.

Their growing development team of roughly 20 members, split across three offices, is involved in developing new and maintaining existing client-facing applications. The role primarily involves backend work with C#, with exposure to frontend development and Azure architecture. You will collaborate with different teams and work closely with clients to understand their requirements.

This role offers excellent progression opportunities with planned growth across the business in 2025 and variety through multiple clients and projects.

Technical Requirements:

• C#, .NET, Visual Studio, Object-Oriented Programming
• Frontend experience with Typescript and Vue.js – not essential
• Background in Maths/Data, either through studies or experience
• Strong collaboration and communication skills across teams
• Autonomy and control over your workday
• Enthusiasm for learning new technologies and career progression

Salary/Benefits:

• Up to £55,000
• 10-15% Discretionary Bonus – up to £12,000
• Pension contributions starting at 4%, increasing to 10%
• Life Assurance – 6x salary
• Income Protection Insurance
• Private Medical Insurance
• Additional perks like cycle to work and gym memberships

If interested, please apply, and I will contact you.

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• Mid-Senior level

• Full-time

• Information Technology, Consulting, and Engineering
• Industries: Software Development, Information Services, IT Consulting

Application Developer

Hybrid working 3 days onsite in Weybridge per week

We're looking for a talented Application Developer to join our clients UK-based engineering team at a fast-growing, innovative technology company.

In this role, you'll take ownership of developing and enhancing their in-house platforms, which include both B2B and B2C applications. You'll work hands-on with modern web and mobile technologies, collaborating with cross-functional teams to deliver high-quality, scalable software.

We're looking for someone who is analytical, organised, and thrives in a collaborative environment. You'll need to be a strong communicator and comfortable working in a fast-paced, agile setting.

• Design, build, and maintain web and mobile applications and APIs.
• Support and enhance existing platforms.
• Lead code reviews and write clean, testable code.
• Translate wireframes into functional, user-friendly interfaces.

• Strong experience with React, React Native, .NET .
• Proficiency in HTML, CSS, Bootstrap , and Front End development.
• Solid understanding of SQL , API integration , and Azure .
• Experience with mobile app development , unit testing , and DevOps tools (GitHub, Azure DevOps).
• Knowledge of security best practices and software documentation.

Application 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

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Overview

Devonshire Hayes have partnered with a fantastic organisation to help them secure an Application Developer to join their team.

• Knowledge of system design, development, implementation, and user support principles and practices.
• Knowledge of reporting platforms and database management
• Knowledge of database platforms (Microsoft SQL, MySQL)
• Understanding of Webservices - HTML, FTP etc.
• Understanding of Data services - XML, SOAP, JSON, REST etc
• Ability to understand Business users needs and translate into technical solutions.
• Comfortable communicating with users to draw out needs and requirements
• It would be advantageous if you have worked with Business Central.

You are required to work in the office, ideally 2 or 3 days per week.

Overview

London (Hybrid)

Our client is a globally recognised, successful bank who provide world-class services to various institutions and individuals. Offering a comprehensive range of retail and corporate financial services/products, this thriving business boasts over 10 million active customers in over 700 business locations. We are looking to acquire the services of an experienced PowerApps Developer.

This is a hybrid role with 3 days in the office & 2 days from home.

• Support the design, development, and deployment of business applications using Microsoft Power Platform. This role focuses on assisting senior developers and technical leads in building efficient, user-friendly, and scalable low-code/no-code solutions that automate processes and improve business productivity.
• Key Responsibilities:
• Build canvas and model-driven apps using Microsoft PowerApps.
• Customize and enhance existing PowerApps applications.
• Translate business requirements into technical solutions with clear and effective app interfaces.
• Workflow Automation – Use Power Automate to create business process workflows; automate repetitive tasks and integrate with services like SharePoint, Outlook, Teams, and Dynamics 365.
• Data Integration – Connect apps to various data sources such as SharePoint, Dataverse (Common Data Service), SQL Server, Excel, Dynamics 365; understand and use connectors to integrate third-party apps/APIs.
• Troubleshooting & Support – Identify bugs or performance issues in apps; provide basic user support and respond to user feedback; assist in testing and debugging during development.
• Documentation – Maintain technical documentation for applications, flows, and configurations; document app functionalities, updates, and changes for stakeholders and team members.
• Collaborate with business analysts, senior developers, and end-users to gather and understand requirements; participate in team meetings and Agile/Scrum ceremonies (if applicable); contribute to code reviews and knowledge sharing.
• Learning & Skill Development – Stay updated with Power Platform capabilities, updates, and best practices; learn new connectors, formulas, and integration methods.

• Advanced understanding of Power Platform
• PowerApps (Canvas & Model-driven apps) – Structure, components, and UI design principles
• Power Automate – Automating workflows and using standard connectors
• Dataverse (Common Data Service) – Basic data modelling and relationships
• SharePoint Online – Lists, libraries, and integration with PowerApps
• Office 365 Tools – Teams, Outlook, Excel, OneDrive
• Microsoft Teams integration with PowerApps
• Knowledge of data sources (SQL, Excel, SharePoint, APIs)
• Basic understanding of entities, tables, fields, and relationships
• Ability to use formulas and expressions in PowerApps

• Ability to break down business requirements into app functionalities
• Debugging common errors in apps or flows

• Familiarity with Power Fx (PowerApps formula language)
• Basic conditional logic and loops in Power Automate

• Associate

• Full-time

• Information Technology

• Banking and Financial Services