messaging engineer jobs in Chesterfield

You will be responsible for the entirety of the back end features of the products.

You will be in charge of building scalable backend services and awesome messaging queues.

You will be responsible for developing a Python-based back end platform that's handling 100,000+s of interactions daily.

You will own the engineering vision and execution of Keepnet’s core platform, operating across the UK, EU, US, UAE, and Canada, supported by distributed offshore and nearshore teams.

You will not be expected to do everything yourself. Success in this role will be measured by platform reliability, delivery predictability, team health, and customer impact.

Founding Sales Engineer High-Growth Cyber Security Startup 📍 Location: United Kingdom (Remote) 💰 Compensation: £80,000 - £85,000 Base, + Bonus (Uncapped) + Strong Equity We’re hiring a Founding Sales Engineer to join a rapidly growing cybersecurity organisation and play a critical role in how customers evaluate, adopt, and succeed with a modern security platform. This role sits at the...

Senior Backend Engineer | Fully Remote UK | £70,000-£75,000 | Python | Django | AWS Location: Fully Remote - Candidates MUST be UK based Salary: £70,000-£75,000 + benefits Tech Stack: - Backend: Python (Django) - Frontend: React - Cloud Systems: AWS, Docker Are you a Senior Backend Engineer who enjoys taking ownership of real production systems and shaping how a platform evolves as it...

Senior / Staff AI Engineer (Python, ML Systems) - FULLY REMOTE High-growth AI | We're working with a well-funded, fast-scaling AI company building a highly ambitious product at enterprise scale. They're now looking to add Senior and Staff-level AI Engineers to help shape the next phase of their ML platform and establish strong technical leadership within the team. This is a product engineering...

You will design and build APIs that enable products, partners and AI services to work together, including: Building RESTful APIs using C# .

You will likely bring: Strong experience building backend services in C# .

You should be comfortable with most of our core technologies:

You will lead and develop high-performing Customer Growth and New Business teams, drive enterprise-level deals, and embed scalable, data-driven sales processes that deliver sustainable revenue growth.

You will bring proven success across expansion and acquisition, strong commercial and analytical acumen, and confidence in coaching a team to succeed.

Global University Systems is building a modern AI platform to power how our universities recruit, teach, support, and serve students. The Director of AI will lead this transformation, turning promising ideas into production-grade AI solutions that create real value for students and staff. This role owns the AI roadmap end-to-end: from identifying high-impact use cases, to running rapid...

REMOTE 24/7 SOC Analyst | UK-Based Frontline cyber defence. Real incidents. Real progression. Looking to build (or accelerate) your SOC career without commuting? This is a fully remote 24/7 SOC Analyst role within a modern, analyst-led Security Operations Centre supporting diverse customer environments across the UK & Europe. You’ll be hands-on with live incidents, real attackers, and...

🚀 We’re hiring | Sales Enablement & Operations Manager 📍 UK – 100% Remote (limited travel) 💼 Professional Services | Partnership-led firm This is a high-impact, manager-level role sitting at the heart of sales, business development and growth. This is a priority hire and a key position within the firm. You’ll work closely with senior leadership, including the Chief Growth Officer, Partners...

Head of Sales — B2B Procurement SaaS (Fully Remote, UK / Europe) Competitive salary + Uncapped commission + Equity About DeepStream We’re a fast-growing, post–Series A procurement SaaS company on a mission to make our customers the benchmark for eSourcing value realisation within the industry. Our AI-enhanced, best-of-breed eSourcing platform streamlines, automates, and standardises key...

Technical Co-Founder / CTO – Health-Tech & Sports Performance I’m looking to bring on a Technical Co-Founder / CTO to help build EXRT, a health & sports-tech startup focused on ECG-driven physiological and performance analytics for athletes and teams. EXRT’s direction is now clearly defined following practitioner-led validation and recent angel funding, with a larger upcoming raise planned once...

You will be responsible for building and optimizing campaigns, landing pages, and funnels that drive measurable outcomes: SQLs, customers, and revenue.

You will operate with a high degree of autonomy, manage paid budgets directly, and use data and experimentation to continuously improve performance.

About Sirion Sirion is the world’s leading AI–native Contract Lifecyle Management (CLM) platform, transforming the end-to-end contracting journey for enterprises. With Agentic AI at the core, the platform’s extraction, conversational search, and AI-enhanced negotiation capabilities have revolutionized contracting across Fortune 500 companies like IBM, Coca Cola, Citi and GE. With more than 800...

Role Purpose The Vertical Sales Manager will be responsible for establishing, leading, and growing a new Aerospace & Defence sales vertical within an established UK-based industrial automation solutions provider. This is a development led sales role suited to an individual with vast experience in the aerospace and defence sector who can bring market knowledge, relationships, and credibility to...

Job Title: Microsoft Solution Architect Location: Remote Type: Contract Rate: £650 Outside You’ll be working as a Microsoft Solution Architect, helping design and deliver cloud-based applications that support large-scale infrastructure and network planning systems. This is a hands-on architecture role where you’ll work closely with engineering, data, and product teams to design practical,...

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.

You will be responsible for the entirety of the back end features of the products.

You will be in charge of building scalable backend services and awesome messaging queues.

You will be responsible for developing a Python-based back end platform that's handling 100,000+s of interactions daily.

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...