senior mainframe developer jobs in Dartford

Up to £72,000 salary, car allowance, bonus, and a clear path for progression with two of the UK’s leading names in industrial services and hazardous waste management. This senior commercial role is ideal for someone ready to drive strategic growth across key sectors, including Civils, Demolition, and Utilities, while shaping long-term partnerships. Why you’ll love this role: - Competitive...

🚀 About Webigence and Spark Travel Webigence has 25 years of experience crafting UX‑first, often highly complex software. Our engineers pair forward‑thinking agile practices with an obsession for intuitive design, shipping products that feel effortless even when the logic underneath is anything but. Alongside a handful of long‑standing third‑party clients, we’re scaling our own SaaS...

You will shape how our engineers build, test, release, and monitor software, ensuring frictionless workflows while keeping ownership of business logic, test quality, and development practices firmly with the product engineering teams.

Senior Development Manager - Onshore Wind, Solar, Battery Storage Salary & Package - up to £80,000 DOE + annual bonus, car allowance, healthcare Remote Working Piper Maddox are partnering with a leader the UK renewable energy industry to hire a key addition to their project development function in 2026. This company are an IPP with a demonstrable track record in successful development,...

You will be working in a fast-paced environment to develop new website themes and add new features in a complex Next. js-based codebase (including a CMS). This is a great opportunity for the right person to take on a challenging and broad role. Homeflow is operating on a fully remote basis but occasional travel will be required for our company meet ups (bi-annually at most in the UK).

Job Description Senior Economic Development Officer – Sectors & Clusters Location: Hybrid – 1–2 days in the office, with regular community engagement Pay Rate: Circa £30 per hour PAYE / £38 per hour Umbrella Contract: Interim Assignment We’re looking for an experienced and enthusiastic Senior Economic Development Officer to help drive growth and innovation across key sectors in a...

Senior Business Development Manager – Fleet Mobility Solutions Provider £50,000 basic - £55,000 basic + £25,000 OTE Uncapped + EV Company Car If you’re ready to make an impact, this is the role that puts you in the driving seat. A competitive package, a premium company car, and the chance to join a private equity-backed business on a rapid growth trajectory. Expect pace, ambition, and the kind...

BRAND NEW ROLE - Senior Exec Level - Marine Geo Director of Business Development - Geotechnical Engineering & Geoscience Consulting About the Company Our client are a growing offshore geotechnical services and consulting unit, focused on delivering high-quality, technically robust solutions across the offshore, nearshore, and onshore environments. While offshore geotechnical investigations...

About Prighter Prighter is a fast-growing LegalTech company building productised services and SaaS solutions for compliance with data protection as well as AI & digital governance regulations. With the mission to enable companies around the world to comply with regulatory requirements for their digital business, our services and SaaS solutions guide our global clients through the increasingly...

Our client is a fast-growing SaaS company building web and mobile products used worldwide for organising, engagement, and field operations. They’re small, sharp, and engineering-led — shipping fast, solving real problems, and working in a genuinely collaborative environment. They’re now adding a fourth A-player Full-Stack Developer to their tight 3-person engineering team. If you want real...

Department: Support Reports To: Application Software Support Manager Location: Remote Salary: £55k - £60k /yr (depending on experience) Contract Type: Permanent – Full Time Role Summary We're looking for an experienced full-stack .NET developer to join our team in a new and exciting role. This role will initially be supporting an array of clients, helping our support team to continue to...

Lead Developer London - Hybrid 1/2 days in office £85,000 - £100,000 About Simmer We’re Simmer Eats, one of Europe’s fastest-growing food brands. We’ve grown 10x in the last year, and we’re building the next phase of scale on a modern commerce and technology stack. Our mission is simple: make healthy eating effortless. High-protein, great-tasting meals delivered straight to customers’ doors,...

Job Description We’re Cuva Health, a UK healthcare start-up on a mission to make access to treatments simpler, safer, and more convenient. Our digital platform is built with React.js & Nuxt.js, and we’re looking for a Full-Stack Developer to help us complete our initial project, deliver new features, optimise performance, and scale our platform as we grow. What you’ll do - Develop and extend...

Job Description An excellent opportunity for an individual with a background in HGV electrics or telematic/vehicle camera installation looking to come off the tools and move into product development. Do you have a background in HGV electrics or telematic/vehicle camera installation? Would you like to work for a world leading company and progress your career into product...

Company: PEN Group Role: Business Development Manager Salary: 40k-50k per annum Hours: Full Time- Onsite, Monday to Friday, 9am-5pm Role Overview The Business Development Manager (BDM) will play a key role in driving organizational growth through student recruitment, partner engagement, and market expansion. This position focuses on building and managing relationships with recruitment...

Ready to launch your career in one of the fastest‑growing areas of tech? We’re hiring Sales Development Representatives (SDRs) in Bristol to join a leading FinTech company reshaping how businesses handle payments and financial operations. This is more than an entry‑level role, it’s a springboard into the world of financial technology, offering structured progression, high‑quality training, and...

Business Development Manager – CRO (Europe-focused) We have recently partnered with a full-service Contract Research Organisation that is looking to appoint a Director of Business Development to play a key role in driving its next phase of growth. This is a high-impact opportunity for a commercially driven BD professional who wants to step into a visible, strategic role with clear progression...

ABOUT PINDROP PinDrop started with a deep love and passion for sport. Whether it’s participating or spectating, we are firm believers that sport has the ability to inspire emotion and excitement like nothing else. From F1 to football, underdogs to icons and Grand Slams to Majors, we have built relationships with many of the biggest teams, athletes and events across World sport. We are a...

You will be given the freedom to build your own pipeline, open doors, and convert opportunities without being tied to account management responsibilities.

You will be responsible for identifying, developing, and negotiating new strategic partnerships for Seopa’s comparison solutions portfolio. While insurance comparison is a core focus, experience in other comparison or switching verticals — such as energy, broadband, mobile, current accounts, or credit cards — is advantageous.