senior mainframe developer jobs in Stevenage

Development Management Implementation (DMI) Senior Engineer Are you a dynamic, creative and delivery focused Highways Engineering / Transport Planning professional. Can you use your first-rate technical skills to assist Tetra Tech in a new and exciting relationship with Hertfordshire County Council (HCC)? If so, we would like to hear from you. HCC has recently awarded Tetra Tech in partnership...

Senior Backend Developer (.NET | AI-First SaaS Platform) Compensation: Competitive, based on location and experience Location: UK or Turkey (Hybrid – Office & Remote) Keepnet is an AI-driven SaaS platform experiencing strong, sustained growth in the UK with growing global momentum, helping organisations manage human cyber risk at scale. With Agentic AI live in production, Keepnet runs...

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...

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...

Job Title: Senior Business Development Manager – Sponsorship Sales (B2B Tech Events) Location: Remote (UK-based) with occasional team meet-ups Salary: £60,000 - £70,000 base DOE + uncapped commission (OTE £155k–£205k+) Job Type: Full-time, Permanent About Rela8 Group At Rela8 Group, we connect the world’s leading tech vendors with senior IT, Security, and Data decision-makers through...

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,...

🚀 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.

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).

You will be a hands-on player-coach, owning outreach and qualification while also helping to design the BDR/SDR process, playbooks and best practices.

You will use modern tools (HubSpot, Clay, Instantly, Lemlist, etc.) and AI to build signal-based, multi-channel plays that generate qualified meetings and pipeline across both partners and direct prospects.

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...

On a mission to help people who have been diagnosed with chronic kidney disease, this start-up are looking to bring on a Senior TypeScript Developer, who’s fully embraced AI-assisted development. Their mission is to make life better for people suffering from kidney disease by building one of the first algorithm-based behavioural change programmes. The application that does this brings together...

You will be involved in the design process at all stages, supporting design reviews and manufacturing queries, reporting into the Technical Lead or Equipment Project Manager.

You will have the opportunity to lead on packages of work, manage deliveries and assign work to senior design engineers.

Job Description About us: REMOTE TECH is a growing company; with ambitions to expand the use of IoT and software solutions and dominate the market in key industries, such as the Water Treatment Companies dealing with Legionella. REMOTE TECH employs an indirect channel sales approach; working with strategic partners to service end-users in target industries. The acquisition of new strategic...

Join the Future of Business AI RevGeni.ai | Greater London (Remote) | £35,000 + Uncapped Commission About RevGeni We’re focused on enabling B2B founders to achieve breakthrough results with complete confidence, knowing their digital team is driving revenue 24/7. We're not building another software platform - we're creating digital teammates: AI-powered "genies" that handle sales, marketing,...

ATN is partnered with a globally recognised Automotive Service Provider in its search for an experienced Director of Sales and Business Development. This is a remote role, with travel to customers across the UK & Ireland required. Responsibilities - Develop and execute the sales strategy across the UK & Ireland to achieve revenue growth and market share targets. - Farm out, identify and land...

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...

Job Description VP Product Developer | 12-Month Contract | £650/day | London (Hybrid) A leading global asset manager is hiring a VP-level Product Developer to support product strategy and lifecycle management across EMEA Mutual Funds & ETFs. What you'll do - Lead product lifecycle events - Support new fund launches - Drive product and governance processes - Partner with legal, compliance,...

Job Description Job Title: Business Development Executive Location: Watford, Hertfordshire (On Site) Salary: Starting £25,500/annum to £26,500/annum (after 3 months' probation period) Plus Uncapped Commission & Bonus Job type: Full time, Permanent Fortrade Ltd. was established in 2013 and has grown rapidly to become a leading provider of online trading solutions for individual and...

You should have good communication skills, a collaborative approach and a proven ability to deliver work on time.

You should be a qualified professional with HNC/HND/Degree or Masters in a relevant subject (e.g., civil engineering, transport planning) - Desirable to be member of Professional Body, such as ICE or CIHT.