Senior Ruby On Rails Engineer jobs in Letchworth, Hertfordshire

Senior Embedded Software Engineer | Cambridge Are you a highly experienced Embedded Software Engineer with a passion for problem-solving across the full product lifecycle? My client developed highly precise scientific instruments & sensors....

We're looking for a Senior Software Engineer to join our team and take our technology and your career into new territories! MBDA is a great a place to learn about the company's entire product portfolio, whilst embracing the change to DevOps and other innovative technologies! Salary...

An exciting opportunity to work as a Software Engineer improving reliability and reducing technical debt in our Simulation Software Department. You will be working in an agile manner, close to your customers and in a key position to learn about a range of products. Salary: Circa £...

Job Title: Senior Agentic AI Engineer Location: Hertfordshire Salary: up to £120,000 DOE This is a unique opportunity for an experienced AI engineer to join a specialised team in virtual design for a wide range of clients, powering...

An exciting opportunity for a Software Engineer working within our Software Simulation department. Salary: up to £66,000 depending on experience Dynamic (hybrid) working: typically, 4 to 5 days per week on-site, dependant on workload classification Security...

Senior Software Engineer – Simulation Software Location: Hertfordshire Clearance: British citizenship required due to security restrictions Salary: Circa £64,000 depending on experience Our...

Senior Software Engineer (Ada, Simulation / C2 Systems) Based onsite in Stevenage Salary up to £64,000 + Bonus | Overtime | Pension This isn’t a feature factory role. You’ll be working...

Test Lead Architect Dynamic (hybrid) working: typically 2 to 3 days per week on-site The opportunity: As a Test Lead Architect, you will play a crucial role in overseeing test design considerations, ensuring their implementation...

Role; Senior Software Engineer -.Net, Angular, Azure Location & Working Arrangements; Office in Bedfordshire, hybrid working policy of 2 days in the office per week Salary; up to £80k plus great benefits, including enhanced pension and 35 hour working week...

Principal Software Engineer Luton 12-Month Contract Paying up to £79p/h (Inside IR35) Please note - due to the nature of the work, you will need to hold or be eligible to obtain a high level...

Job Description Join our team as a Senior Embedded Communications and Integration Engineer and play a key role in delivering complex, mission‑critical systems within the defence sector. This role sits at the intersection of embedded software, communications, and system integration, supporting......

We’re recruiting for a Lead D365 Developer to join a highly collaborative Omnichannel team responsible for Dynamics 365 CRM and Genesys Cloud CX platforms within a large-scale enterprise environment. This is an excellent opportunity for a senior engineer or technical lead who enjoys hands-on...

Salary: Circa £40,000 (negotiable DOE) + overtime + call-out rates Hours: Monday to Friday, 8:00am – 5:00pm (flexibility required with time back in lieu) Location: This is a national role, with candidates ideally based in the Midlands or along the M1 corridor (e.g. Northampton, Leicester, Luton,...

Salary: Circa £40,000 (negotiable DOE) + overtime + call-out rates Hours: Monday to Friday, 8:00am - 5:00pm (flexibility required with time back in lieu) Location: This is a national role, with candidates ideally based in the Midlands or along...

We’re looking for an Electronics Design Engineer to work across hardware design and EMC/environmental testing on complex, multi-layer boards for highly regulated markets. This role could suit a mid-level/senior hardware engineer or a test engineer looking for a path into design. This Electronic...

Who we are: Modern Networks, established in 2000, is a growing IT Managed Service Provider (MSP) and Internet Service Provider (ISP) specialising in delivering services to the property management sector and commercial businesses nationwide. We work closely with customers to...

Software Architect Based in Stevenage Salary up to £80,000 + 21% bonus + strong benefits Not every architect role lets you shape something that actually matters. This one does. You’ll...

This is a self-funded programme that leads to employment, fees apply. Job Guarantee Complete the programme and get a job, or get your course fees back. Looking to start a career in Cyber Security? We are offering a structured pathway...

Programme Director - Hertfordshire Contract start 1st of June 2026 £1000 per day Inside IR35 - paid via an umbrella Hybrid working A senior leadership role within the Strategic Projects and Management...

This is a self-funded programme that leads to employment, fees apply. Job Guarantee Complete the programme and get a job, or get your course fees back. Looking to start a career in AI Engineering? We are offering a structured pathway...