Enterprise‑grade engineering and technical leadership across financial services, public sector, and other complex, mission‑critical industries, delivering scalable multi‑cloud architecture on Azure, AWS, and modern hybrid stacks.
No account managers. No juniors. No off‑shore teams. Just direct access to the engineers who design it, build it, and stand behind every line of code.
Elastic Jelly Ltd is a specialist software engineering consultancy based in Northumberland, founded by Mark Gent — a senior full‑stack engineer and architect with over two decades of commercial experience across financial services, public sector, and enterprise.
The business works directly with clients, without agency intermediaries. Associate engineers are senior practitioners with complementary specialisms, brought in on a project basis when scope demands.
Most consultancies sell you a team and manage the relationship. Elastic Jelly gives you direct access to senior engineers who write the code, make the architectural decisions, and are personally accountable for what gets shipped.
Technical leadership on a national agricultural traceability platform, including a large‑scale data‑migration and ingestion programme processing 2B+ historical records and scaling to 8B+ records as additional species are onboarded. Delivered high‑volume data pipelines capable of handling 20M+ new records per month, supporting multiple upstream and downstream applications across the wider DEFRA ecosystem.
Built using event‑driven microservices and modular monoliths, applying each architectural style where it delivers the most value — microservices for high‑volume ingestion and integration flows, modular monolith for domain‑rich, consistency‑critical core logic.
Underpinned by gold‑standard engineering discipline: rigorous branching strategy, a mature testing pyramid, mandatory peer review, structured logging, and full observability across services and pipelines. Close collaboration with policy, product, and engineering teams to deliver a resilient, scalable national platform.
Every engagement is anchored by Mark — the engineer accountable for quality, architecture, and day‑to‑day communication. When additional capacity is needed, it comes from a small network of senior associates: practitioners with 15+ years’ experience who have delivered real projects together and share the same engineering standards.
This model gives you the scale of a team when required, without the overhead of a large consultancy. No anonymous subcontractors. No agency resourcing. Just trusted engineers the lead can vouch for directly.
Whether you’re modernising a legacy system, building cloud‑native from scratch, or need senior engineering leadership from someone who is hands‑on and does the work, get in touch for an honest conversation about fit and what you’re trying to achieve.