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IO Associates

103 jobs

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103 jobs Posted Sort

Software Engineer

Full Stack Software Engineer with strong Java skills joining an established Agile delivery team that designs, develops, tests and maintains complex software projects for central government customers. Hybrid role based in Plymouth, Manchester, Bristol or Cheltenham, paying £45,000–£70,000.

Senior Software Engineer

RemoteUKContractSenior

12-month fully remote contract (outside IR35) for a Senior Backend Engineer at a fintech business, building highly scalable, mission-critical financial systems. Day to day is hands-on Node.js, TypeScript and AWS with ownership from system design and architecture through release and production support.

AWS Fintech Node.js TypeScript

Software Engineer

A full stack software engineer with strong Java skills who designs, develops, tests and maintains bespoke software on an established Agile delivery team, serving central government customers. Hybrid working from Plymouth, Manchester, Bristol or Cheltenham.

Test Engineer – Data & ETL Automation (Cloud)

A Test Engineer role focused on automating tests for data and ETL pipelines in AWS/Azure cloud environments. Day to day involves designing automated test solutions, validating data accuracy with SQL and Python-based testing, and building reusable frameworks with PySpark, Kafka and CI/CD to enable shift-left testing.

Automation AWS Azure CI/CD Cloud +6 skills

Frontend Engineer: Data Visualization (Hybrid, London)

A hybrid (London-based) Frontend Software Engineer role focused on building high-performance web applications that visualise and navigate data. The engineer owns core React/TypeScript components, extends them for customer-specific workflows, and takes prototypes to production with a strong emphasis on UX, accessibility and responsive design.

Accessibility React TypeScript

Network Engineer (Data Centre / NOC)

Hybrid London role (3 days onsite) up to £65k: monitor, troubleshoot and implement changes in a 24/7 data centre/NOC environment — Layer 2/3 issues, DNS/IP management, and Palo Alto/Fortigate firewalls. Requires CCNP-level routing & switching and prior NOC/data centre experience; no visa sponsorship offered.

DHCP DNS Firewall Network Security

Software Developer

About the Role Our client is looking for a Software Engineer to join a collaborative team built on openness, respect, and shared excellence. You’ll work closely with your teammates to deliver projects of varying scope…

Agile Ansible Bash DevOps Docker +6 skills

Data Governance Specialist

12-month outside-IR35 contract supporting an SME defence consultancy with data governance and AI compliance: set up and manage governance tooling (Microsoft Purview, Collibra) covering catalogs, asset classification, glossaries and lineage, working with data owners and stewards. Hybrid from Reading with travel to London twice a week; active SC clearance required.

AI Data Governance

620 – 620 £ / day

GCP Data Analyst

RemoteNorth AmericaContractSenior

A 2-year, outside-IR35 contract for a Senior Data Analyst on a large-scale UK public sector data programme, working remote-first within the UK. Day to day involves analysing and validating large volumes of data in Google Cloud Platform (GCP) to ensure accuracy, consistency and data integrity; active SC clearance and an immediate start are essential.

500 – 600 £ / day

Security-Cleared Data Engineer — Azure, Airflow & Spark

Contract Data Engineer in London supporting a MoD-owned data platform: building and maintaining secure data pipelines with Python, Azure and Kubernetes, using Apache Airflow for orchestration and Apache Spark for processing, while keeping data hosted on MoD infrastructure. Security clearance and working in a government-aligned secure environment are central to the role.

Airflow Azure Data Pipelines Kubernetes Python +1 skills

Senior / Principal Solution Architect - Manufacturing Applications

UKFull-timePrincipal

Senior / Principal Solution Architect – Manufacturing Applications Permanent Location: Bristol – Hybrid, 3 days per week onsite Salary: £85,000–£105,000 car allowance up to 10% performance bonus Clearance: SC Clearance…

Senior Java Developer - o/s IR35 - Hybrid - 18 month cx

Senior Java Developer on an 18-month contract (inside IR35, hybrid from Hammersmith) with a major retailer, building a greenfield, scalable order-fulfilment platform for manual and robotic warehouse operations. Day to day: Java/Spring Boot microservices, Kafka eventing, PostgreSQL/Couchbase, and Azure/Docker/Kubernetes DevOps in a mission-critical environment.

Agile API Automation Azure Azure DevOps +18 skills

Senior Data Engineer

UKContractSenior

My client is looking for an experienced Senior Data Engineer to join them on a contract basis , taking end‑to‑end ownership of business‑critical data products on their Azure Databricks‑based data platform . This is a…

Agile AI Analytics Azure Azure Synapse +18 skills

SC-Cleared Python Developer – Remote Contract

iO Associates is seeking an SC Cleared Python Developer for a remote contract in the UK, with London visits every 4–6 weeks. The role offers £400–£500 per day outside IR35, initial 6 months, ASAP start. Candidates…

Agile Python Secure Coding

Product Manager

Our client, a UK-based tech business, is looking for an experienced Product Manager to take ownership of a time & synchronisation product line used in network and communications environments. You can be based out of…

Sage Intacct Integration Consultant - Freelance/Ad-Hoc - Full Remote

RemoteUKContract

Sage Intacct Integration Consultant - Freelance / Any EU location - Fully Remote Contract: Ad hoc consultancy Location: Full Remote Workload: Flexible, based on project demand Start date: TBC The opportunity: We are…

Sage Intacct Technical Integration Consultant - Ad-Hoc - Remote

RemoteUKContract

Sage Intacct Integration SME – Ad Hoc - Contract - Outside IR35 Contract: 12 month engagement Location: Fully Remote Workload: Flexible, based on project demand (35 hours per week for the first 2 months) Start date:…

Head of Architecture - Data Platform & Account & Identity (BBC)

Head of Architecture - Data Platform & Account & Identity BBC I'm currently partnered with the BBC on a key Head of Architecture hire focused on Data Platform & Account & Identity - a pivotal role sitting at the centre…

AI Machine Learning

Rust Backend Engineer – Build Scalable Distributed Systems

A hybrid London role designing and building scalable distributed backend systems, storage, and platform primitives in Rust, with Python used at API boundaries. You join a small autonomous team at an early-stage company, contributing to data pipelines, services, and engineering culture.

API Data Pipelines Python Rust

Senior Java Developer - o/s IR35 - Hybrid - 18 month cx

Senior Java Developer on an 18-month, outside-IR35 hybrid contract with a major retailer's globally distributed engineering team. Day to day: building a scalable, real-time order-fulfilment platform that supports both manual and automated/robotic warehouse operations across multiple geographies.