Polytec Personnel Ltd

Location: Saffron Walden Type: Permanent Hours: Monday-Friday, 9:00am-5:30pm Salary: Competitive Job Reference: 35910 Our rapidly expanding AI client based in Saffron Walden is seeking a Web Designer and Developer to help bring their digital vision to life. This role is a fantastic opportunity for a recent graduate who's passionate about both design and development. You'll be responsible for crafting visually stunning websites, developing user-friendly front-end solutions and creating engaging digital content. Responsibilities - Design and develop website pages and templates using HTML, CSS and modern web standards - Manage and update websites using CMS platforms (e.g., WordPress, Joomla) - Create wireframes, mock-ups and layouts, ensuring a visually appealing and user-friendly experience - Produce digital artwork, graphics and visual assets using Adobe Creative Cloud (Photoshop, Illustrator, InDesign) - Assist with creating 3D and motion content, as well as video and podcast materials for marketing - Manage website domain registrations, hosting and DNS changes with IT - Oversee website testing, quality assurance and ensure compliance with accessibility and privacy regulations - Track site performance, user behaviour and implement SEO best practices - Collaborate with internal teams on marketing campaigns and work with external creative partners Requirements Essential: - Strong command of HTML, CSS and experience with at least one CMS platform (e.g., WordPress, Joomla, etc.) - Proficient in Adobe Creative Cloud (Photoshop, Illustrator, InDesign) for graphic design work - Ability to create polished, high-quality digital visuals, including retouching and enhancing imagery - Highly organised with the ability to manage multiple projects simultaneously and meet deadlines - Effective communicator, comfortable working independently and as part of a small, agile team - Full UK driving licence and eligible to work in the UK without visa restrictions Desirable: - Experience with 3D design tools like Blender or similar platforms - Familiar with video editing and podcast production - Knowledge of Desktop Publishing (DTP) software for layout and design - Understanding of website accessibility standards and GDPR/privacy compliance - Familiarity with SEO practices, analytics tools and methods for optimising site performance - Basic knowledge of JavaScript or modern front-end development frameworks Please contact us as soon as possible for more details or apply below!

Location: Saffron Walden Type: Permanent Hours: Monday-Friday, 9:00am-5:30pm Salary: Competitive Job Reference: 35911 Our innovative and rapidly growing AI client in Saffron Walden is looking for a talented Software Engineer to join their expanding development team. In this role, you'll work on diverse projects, from early prototypes to fully developed products, helping to build cutting-edge technologies that tackle real-world challenges. This is a dynamic, hands-on position that offers a lot of autonomy, responsibility and the chance to work across multiple technical domains. This role is ideal for graduates or more experienced engineers with a strong problem-solving mindset and a passion for learning and innovation. Responsibilities - Develop software for both prototype systems and production-ready products, contributing to the full development lifecycle - Work on multiple projects simultaneously, solving a variety of technical challenges - Collaborate closely with engineers to integrate software with hardware and other system components - Learn quickly and apply new technologies to support various RandD efforts and technical challenges - Contribute to problem-solving and technical decision-making at all stages of development - Support the development of software for controlling hardware platforms, sensors or custom devices Requirements Essential: - A strong academic background with a 2:1 or above in a STEM discipline (e.g., Computer Science, Mathematics, Physics, Engineering) - Proven ability to solve complex and ambiguous technical problems - Ability to work autonomously with minimal supervision - Eagerness to learn new tools, technologies, and programming languages quickly - Proficient in Python programming Desirable: - Experience with software-hardware integration or working with embedded systems - Familiarity with computer networking concepts - Experience using deep-learning frameworks (e.g., TensorFlow, PyTorch) - Understanding of machine learning, statistics, optimisation or algorithm development - Experience developing mobile applications (iOS/Android) Please contact us as soon as possible for more details or apply below!

Location: Saffron Walden Type: Permanent Hours: Monday-Friday, 9:00am-5:30pm Salary: Competitive Job Reference: 35900 Polytec are seeking an experienced Accounts Assistant to join a finance team based in Saffron Walden. Responsibilities - Recording and managing purchase invoices, ensuring correct approvals and entering them into the finance system - Creating and maintaining purchase orders - Preparing and coordinating scheduled payment runs - Handling staff expense claims - Issuing sales invoices and setting up new supplier accounts - Assisting with wider accounts payable tasks as needed - Entering and reviewing journal entries - Keeping the fixed asset register up to date - Processing bank transactions and matching payments to the correct accounts - Helping with month-end activities and completing ad hoc duties - Contributing to broader finance projects, reporting and other tasks as needed Requirements Essential: - Background in maintaining and overseeing financial ledgers - Strong proficiency in Microsoft Excel - A proactive, practical and can-do' working style Desirable: - Familiarity with Sage accounting software - An interest in (or the ability to undertake) funded accounting qualifications, which may be offered for the ideal candidate Please contact us as soon as possible for more details or apply below!

Location: Saffron Walden (CB11) Job Type: Permanent Hours: 9.00am - 5.30pm Monday - Friday Salary: Competitive Job Reference: 35899 We are seeking an Additive Manufacturing and Prototyping Technician / Specialist to join our Saffron Walden based client. You will support rapid prototyping, fabrication and small-batch production for engineering and RandD teams, working on components for advanced sensing, robotics and AI-enabled systems. This role is open to both junior and experienced specialists. You will work closely with engineering and RandD teams, influencing and expanding in-house fabrication and AM capabilities. Responsibilities - Operate and maintain 3D printers (FDM, SLA, SLS), including slicing, setup, monitoring and post-processing - Support hands-on prototyping and fabrication using workshop tools%3B assist with simple machining (CNC a plus) - Produce jigs, fixtures, enclosure, and test hardware%3B assemble prototype systems - Make basic CAD edits and prepare models for print%3B advise on DFAM - Inspect parts, maintain an organised workshop and improve workflows - Senior candidates may lead AM strategy, train others and support advanced materials/process research Requirements - Experience with 3D printers and slicing software - Basic CAD skills and strong hands-on workshop ability - Good mechanical understanding, organisation and attention to detail - Desirable: professional AM/prototyping experience, advanced materials, CNC/laser experience, test jig building, DFAM knowledge, printer repair, electronics familiarity, robotics/hardware background Please contact us as soon as possible for more details or apply below!

Location: Cambridge (CB25) Duration: Permanent Hours: 9am - 5pm (flexible and hybrid options available) Salary: 30,000 - 33,000 depending on experience Job Reference: 35966 We're looking for a proactive and detail-oriented Service Coordinator to join our client based North Cambridge. In this role, you'll be the key point of contact for customers and internal teams, ensuring smooth communication and efficient order processing. You'll manage domestic and international parts orders, Inter-Company transactions and RMA processing, while supporting service engineers and managers. Responsibilities: - Maintain daily communication with customers to resolve issues and ensure satisfaction - Act as the liaison for customer support activities, including product availability, quotations, order processing, shipments and account status updates - Interpret engineering drawings to action repair/service - Support Service Engineers and Managers with administrative tasks - Review and process open orders, forms and requests - Coordinate shipments and prepare shipping instructions and coversheets - Manage logistics with customer-designated forwarders and schedule pickups - Prepare documentation such as pro forma invoices and packing lists - Keep databases accurate and up to date - Work closely with the accounts department - Book RMAs for dealers and distributors Requirements: - Previous experience in a technical administration role - Ability to read engineering drawings - Understanding of basic electronics - Excellent customer service skills - Audio and Video technical experience desired The position offers travel opportunities to visit 3rd party warehouses and other departments. Please contact us as soon as possible for more details or apply below!

Location: Saffron Walden Job Type: Permanent Hours: Monday-Friday, 9.00-17.30 Salary: Competitive Job Reference: 35947 Polytec are seeking a Senior RF Data Scientist / Research Engineer to develop signal-processing and machine learning solutions using RF data from software-defined radios for our Saffron Walden based client. This hands-on role sits at the intersection of RF hardware, DSP and applied ML in a fast-paced RandD environment. Responsibilities: Analyse and characterise IQ data from SDR platforms Build RF signal analysis and visualisation tools Design RF data-processing pipelines accounting for real-world hardware effects Develop ML and statistical models for RF classification and detection Prototype batch and real-time processing systems in Python and integrate with GNU Radio or C++ backends Support RF data collection and over-the-air testing Requirements: Strong Python skills for data analysis and prototyping Solid understanding of digital signal processing fundamentals Experience with SDR frameworks such as GNU Radio or similar Understanding of RF hardware chains and their impact on baseband data Experience analysing wireless protocols or physical-layer behaviour Comfortable working in iterative, experimental RandD environments Desirable: Hands-on SDR and RF lab experience Exposure to techniques such as direction finding, Doppler, or beamforming Experience beyond Python (e.g. C++, MATLAB) Knowledge of RF circuits or antenna systems Publications, patents, or open-source contributions Please contact us as soon as possible for more details or apply below!

Location: Saffron Walden (CB11) Job Type: Permanent Hours: 9.00am - 5.30pm Monday - Friday Salary: Competitive Job Reference: Our client based in Saffron Walden, is seeking an experienced Linux Systems Administrator to join their technical team. This is a hands-on position where you'll play a key role in managing and optimising Linux-based systems, ensuring seamless integration across multiple platforms whilst maintaining the security and reliability of critical RandD infrastructure. If you thrive in fast-paced environments and enjoy building robust, scalable systems, this opportunity may be for you! Key Responsibilities - Administer, maintain and optimise Linux server environments for high availability and performance - Implement security best practices across Linux, Windows and macOS systems - Perform regular system audits, updates and patch management - Support Windows and macOS devices for smooth integration with company infrastructure - Develop centralised administration processes for consistent system management - Automate workflows using scripting and configuration management tools (e.g., Bash, Python, Ansible) - Collaborate with developers and RandD teams to deploy, monitor and manage applications and services - Maintain clear documentation and standardised system configurations Requirements - Proven experience managing Linux servers and system environments - Familiarity with Windows and macOS administration - Strong scripting skills (Bash, Python) and automation experience - Solid understanding of networking fundamentals and security protocols - Proactive, detail-oriented and an excellent communicator - Comfortable working independently and within a collaborative engineering team Please contact us as soon as possible for more details or apply below!

Location: Newmarket (CB8) Duration: Temporary - 4 months initially with potential to become permanent Hours: 8:30 am until 4:30pm (Monday to Friday) Salary: 26,000 Job Reference: 35853 Polytec are looking for Production Technicians for our Newmarket based client. Responsibilities: Assembly of antenna kits, following documentation, ensuring Health and Safety regulations are adhered to Operate Test and Measurement equipment Ensure all relevant paperwork for each job is completed Requirements: Previous experience of light mechanical assembly work Electronics background or microwave experience preferable Knowledge of raw materials, production processes, quality control and costs Good soldering skills would be an advantage Please contact us as soon as possible for more details or apply below!

Location: Cambridge (CB22) Duration: Permanent Hours: 8:45am until 5pm (Monday to Friday) Salary: 37,500 Job Reference: 35970 Polytec are looking for a Senior Test Engineer for our client based just south of Cambridge. This is a hands-on role requiring travel for installation and commissioning of equipment both in the UK and abroad. Responsibilities Mechanical alignment and set up Subsystem test of electrical control panels Integration into the overall machine and final machine test Requirements: At least 5 years' experience of system and subsystem testing Experience in distributed control system using PLCs (Allen Bradley) communicating over Ethernet IP - Temperature control systems - Pressure control systems - Motion control using servo motors/stepper motors - Fluid control systems Please contact us as soon as possible for more details or apply below!

Location: Cambridge (CB22) Duration: Permanent Hours: 8:45am until 5pm (Monday to Friday) Salary: circa 60,000 Job Reference: 35515 Polytec are looking for a Senior Automation Engineer from an engineering background for our client based in south Cambridgeshire. Responsibilities: You will be producing leading edge machinery for a high technology global market. Requirements: Electrical / Physics Degree level qualification, considerable experience in a relevant field may also be considered Exposure to test, measurement and PLC programming Programming and design experience on PLCs (Programmable Logic Controllers) and SCADA Motion Control and PID Controllers SCADA (Supervisory Control and Data Acquisition) systems Visual basic programming experience Experience of Rockwell/Allen Bradley control systems would be beneficial Please contact us as soon as possible for more details or apply below!

Location: Cambridge Type: Permanent Hours: Monday-Friday, 8.30am - 5.30pm, flexible / hybrid options available Salary: £65000+ depending on experience Job Reference: 35961 Polytec is seeking is a skilled Hardware Engineer for our Cambridge based client. You will be designing and developing cutting-edge medical and scientific devices. This role involves working on analogue, digital, RF, low-power and embedded systems, ensuring compliance with industry standards. Responsibilities: - Design hardware systems including schematics, PCB layout and embedded solutions for battery-powered products - Lead the full hardware development lifecycle including requirements, design, prototyping, testing, debugging and production support - Ensure compliance with regulatory standards (e.g., IEC 60601, ISO 13485) - Conduct EMC testing and troubleshoot hardware issues - Collaborate with cross-functional teams to deliver integrated solutions - Maintain accurate documentation and stay current with advancements in low-power and RF technologies Requirements: - Proven experience in medical, diagnostic or scientific device development - Strong background in analogue, digital, RF and embedded systems design - Proficiency in schematic capture, PCB layout and debugging - Expertise in low-power design, signal conditioning BLE and RF systems - Experience with EMC testing and regulatory compliance - Hands-on embedded firmware development - Excellent problem-solving and communication skills Desirable: - Experience with full product lifecycle and NPI processes - Knowledge of quality assurance and documentation best practices. Please contact us as soon as possible for more details or apply below!

Location: Saffron Walden Type: Permanent Hours: Monday-Friday, 9:00am-5:30pm Salary: Competitive Job Reference: 35902 Polytec are seeking an experienced Procurement Specialist to join our Saffron Walden based client. The successful candidate will be responsible for managing sourcing, purchasing and supplier relationships across a variety of technical and operational categories. This hands-on role supports engineering, RandD, and operations teams by ensuring timely access to critical materials, components and services. Responsibilities Manage the end-to-end procurement process: sourcing, quoting, negotiating, and raising POs Identify, evaluate, and maintain relationships with suppliers across technical and operational categories Negotiate pricing, contracts, and commercial terms Coordinate shipments, deliveries, and customs documentation Work closely with engineering and operations to understand requirements and timelines Maintain accurate purchasing, inventory, and component records Improve procurement processes, workflows, and documentation as the organisation scales Requirements Essential Experience in procurement, purchasing, or supply chain roles-ideally within engineering, manufacturing, or tech Strong negotiation and supplier-management skills Ability to read or clarify technical specifications Strong organisational, multitasking, and communication skills Familiarity with procurement systems, POs, and inventory processes Desirable Experience in defence, aerospace, robotics, or hardware-focused tech Understanding of export controls and international shipping Knowledge of ERP/MRP systems CIPS qualification (or working towards it) Please contact us as soon as possible for more details or apply below!

Location: Saffron Walden Type: Permanent Hours: Monday-Friday, 9:00am-5:30pm Salary: Competitive Job Reference: 35908 Our client, a rapidly expanding UK technology start-up based in Saffron Walden, is seeking an exceptional Personal Assistant to provide comprehensive support to the Founder and Managing Director. This is a broad and varied role, encompassing both executive and private assistance. The successful candidate will be proactive, highly organised and operate with the utmost discretion. If you thrive in a fast-paced environment and enjoy enabling senior leaders to perform at their best, this is an excellent opportunity to join a dynamic and ambitious business. Responsibilities - Full Executive Support: Manage the Founder's diary, inbox, meeting schedule and all follow-ups, ensuring their time is optimised and priorities are met - Travel and Logistics: Coordinate all business and personal travel, including itineraries, accommodation and associated logistics - Private and Household Administration: Oversee a range of personal and household tasks, ensuring smooth day-to-day operations for the Founder - Primary Point of Contact: Act as a trusted liaison for internal stakeholders and external partners, maintaining professionalism and discretion at all times - Project and Priority Support: Assist with special projects, proactively identifying upcoming needs and ensuring the Founder is prepared for key deadlines and activities. Requirements - A solid track record as a PA or EA, ideally supporting senior executives or entrepreneurial leaders - Exceptional organisational abilities, with a sharp eye for detail and accuracy - A high level of discretion and professionalism, with the judgement to handle sensitive information confidently - A proactive, resourceful approach, with the ability to anticipate needs and solve problems independently - Strong interpersonal and communication skills, with ease in dealing with a wide range of stakeholders - Additional languages would be an advantage, though not essential Please contact us as soon as possible for more details or apply below!

Location: Saffron Walden Type: Permanent Hours: Monday-Friday, 9:00am-5:30pm Salary: Competitive Job Reference: 35904 Polytec are seeking an experienced HR Manager to join our Saffron Walden based client. This is a hands-on and varied generalist role, ideal for someone who enjoys building processes, supporting people, and shaping culture within a scaling business. You will take ownership of the full employee lifecycle and play a key role in developing a supportive, high-performing working environment. Responsibilities Manage the full employee lifecycle, including onboarding, probation, performance reviews and offboarding Act as the primary HR contact for managers and employees, providing guidance and support Develop and maintain HR policies, procedures, and the employee handbook in line with UK employment law Advise on employee relations matters and coach managers on best practice Oversee payroll input and employee benefits, working with finance and external providers Maintain accurate HR data, systems and documentation Coordinate learning and development initiatives to support employee growth Lead employee engagement activities and contribute to a positive and inclusive culture Support leadership with workforce planning and organisational development Ensure compliance with health and safety and other statutory requirements Promote diversity, equity, and inclusion across the organisation Requirements Broad HR generalist experience, ideally gained in a start-up, scale-up, or dynamic SME Strong working knowledge of UK employment law and HR best practice Comfortable operating as a standalone HR function with both strategic and hands-on responsibilities Excellent communication skills with the ability to build trust at all levels Proactive, adaptable, and able to work independently CIPD Level 5 or above desirable Please contact us as soon as possible for more details or apply below!