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Contract Backend Engineer Jobs
Overview
Discover top contract Backend Engineer jobs on Haystack, the leading IT job board connecting skilled developers with exciting short-term opportunities. Whether you specialize in Java, Python, Node.js, or other backend technologies, find flexible contract roles that match your expertise and advance your career today. Start your search for the best Backend Engineer contract jobs now!
Software Engineer
Certain Advantage
Guildford
Hybrid
Mid
£50/hour - £70/hour
RECENTLY POSTED

Certain Advantage is hiring for a Software Engineer based in the Guildford or Newcastle area. This role is on a contract basis and is hybrid-based. The Company We’re working with a Manufacturing business that operates in the Aerospace sector. They design, manufacture and deliver industry-leading commercial aircraft, and a separate Space and Defence division. Does this sound like your next career move? If you’re ambitious to grow, this may be your next role? The Role: This role is for a Software Engineer —someone ambitious and ready to make an impact. You’ll be results-oriented and driven to succeed. You’ll be working in a small, experienced, and collaborative team, and be responsible for: High-quality, readable, scalable and easily maintained code, using Java. Contribution to quality assurance by writing unit and automated tests. Design and code reviews Sprint planning, reviews, and daily stand-ups in a true Agile environmentThe Individual We’re looking for people who can show: Java Cloud Services development Unit testing DevSecOps awareness using tools such as Tekton, ArgoCD, SonarQube -Desirable Red Hat OpenShift container platform or Kubernetes – Desirable Quarkus Framework – Desirable Front-end development using Angular - DesirableThe Benefits: Hourly rate of circa £70ph via Umbrella company Flexible working Training and DevelopmentDoes this sound like your next career move? Apply today. Working with Certain Advantage We go the extra mile to find the best people for the job. If you’re hunting for a role where you can make an impact and grow your career, we’ll work with you to find it. We work with businesses across the UK to find the best people in Finance, Marketing, IT and Engineering. If this job isn’t for you, head to (url removed) and register for job alerts and career guidance tips

AWS Data Engineer (contract)
Opus Recruitment Solutions
London
Hybrid
Senior
£500/day - £570/day
RECENTLY POSTED

AWS Data Engineer | 6m Contract | London, Hybrid - Outside IR35 Daily Rate: £570 per day (Outside) Team: Data Engineering - Application Development Overview: Opus have partnered with a London Financial Services company who're seeking a Senior AWS Data Engineer with a background in Application Development to support in architecting and delivering a new PostgreSQL‑driven data platform which will be used to support core functions across investment reporting, risk analysis, regulatory output, and performance measurement. This is a high‑impact greenfield build. You’ll take full ownership of the platform’s design and lead the transition away from Databricks and Excel-centric processes—shaping critical infrastructure that underpins the organisation’s investment operations. What You’ll Work On You’ll be responsible for designing and developing a scalable, secure PostgreSQL environment capable of supporting: Portfolio valuation and holdings data Performance and attribution reporting Risk and analytics outputs Regulatory and trustee disclosures Data governance and operational controls You’ll also oversee the migration of structured datasets from Databricks (Delta Lake/Spark) and replace manual Excel workflows with automated, well-governed pipelines to meet audit and regulatory standards. Key Responsibilities Build and maintain a secure PostgreSQL-based data platform Lead the shift away from Databricks and spreadsheet‑dependent reporting Create dimensional data models covering investments, pricing, performance and related domains Develop reliable ETL/ELT processes in Python Implement data quality, reconciliation and validation controls Optimise database performance for analytical and reporting workloads Ensure compliance with FCA and TPR regulatory guidelines Set up access controls, security standards and permissioning Establish monitoring, backup and disaster recovery solutions Collaborate closely with investment, risk and finance teams Essential Skills & Experience 5+ years’ experience in data engineering, application development or data platform roles Strong PostgreSQL knowledge, including indexing, optimisation and partitioning Background in financial or investment data environments Advanced SQL and Python skills Experience migrating data from platforms like Databricks Confident with dimensional modelling, star schemas, SCDs etc. Experience within regulated financial services Desirable Experience in pensions, asset management or institutional investing Understanding of performance measurement and attribution Exposure to Airflow or dbt Cloud platform familiarity (Azure or AWS) Knowledge of data governance best practice About You Highly detail‑driven with a strong approach to data quality Comfortable operating in tightly regulated sectors Able to explain technical concepts clearly to non‑technical audiences Practical, proactive and solution‑focused Why This Role? A rare opportunity to build core investment data infrastructure from the ground up High visibility and direct engagement with senior stakeholders across multiple business areas Stable organisation with long‑term goals and purpose Flexible hybrid arrangement requiring only occasional travel to the London office

Software Developer - Rust & Python
IO Associates
Northampton
Hybrid
Mid - Senior
£550/day - £600/day
RECENTLY POSTED
+1

Developer - Rust & Python

2 days a week onsite in Northampton

£550pd to £600pd - Inside IR35

8 month contract

Our client are looking for an experienced Developer to join them on a contract basis

They are a household name, operating at the forefront of the IT and engineering sectors, specialising in the development of advanced engineering software and digital tools.

This critical role is designed to support the development of high-performance, maintainable software that underpins innovative engineering applications. The position offers an exciting chance to be at the forefront of technological advancement, shaping the tools and solutions used in complex engineering environments. Your work will have a tangible impact on engineering excellence and operational efficiency

We are looking for:

Proven experience in designing and developing software in Rust, complemented by practical knowledge of other languages such as C# and Python

Strong understanding of object-oriented programming and agile development methodologies

Experience deploying and managing microservices in containerised environments, particularly Kubernetes

Proficiency in database design and query optimisation for systems like MS SQL Server or Postgres

Familiarity with message queuing systems including RabbitMQ or Kafka

Knowledge of software development tools such as Azure DevOps and experience setting up CI/CD pipelines

Interested to hear more? I would be more than happy to discuss the role in more detail, along with any other opportunities you may be open to!

TPBN1_UKTJ

2x Senior Data Engineer (Financial Services)
Hays Technology
London
Remote or hybrid
Senior
£700/day - £750/day
RECENTLY POSTED

Your new company Working for a globally renowned financial organisation Your new role We are hiring two Senior Data Engineers to support the ongoing development and modernisation of a large‑scale financial data platform. The environment blends long‑established enterprise systems and legacy components with modern cloud services hosted on AWS. The platform processes high‑volume structured datasets and powers a mix of internal business systems and customer‑facing financial products. A major part of the estate consists of large SQL Server environments; therefore, advanced SQL Server expertise is essential. You will take a leading role in modernising core components, improving platform performance and resilience, and building scalable backend and data services as the platform evolves. This role suits engineers who are confident working across legacy and modern stacks, and who bring strong experience in programming/ designing and delivering robust data services and APIs. What you'll need to succeed Expert‑level SQL Server development and optimisation experience. Experience working in environments with significant legacy components. Strong AWS knowledge (Lambda, Amazon S3, API Gateway; certifications beneficial). Experienced with programming languages such as Python or C#. Background in financial services or data‑heavy platforms with experience with legacy/ modern platforms. Solid mathematical or quantitative background would be beneficial for analytics‑focused work. What you'll get in return Flexible working options available. What you need to do now If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now. Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found at (url removed)

C# Developer - Desktop Applications
GCS
London
Hybrid
Mid - Senior
£400/day - £415/day
RECENTLY POSTED

Global bank based in Canary Wharf.

Role - C# Developer - Desktop Applications

Duration - 6 months with likely extension

Rate - 415 p/d (inside IR35)

Location - Hybrid / Canary Wharf

Tech Stack

  • C#
  • WPF
  • Winforms
  • SQL
  • Oracle

Tasks

  • Tasks range from understanding business requirements, designing application structures, business data analysis, programming WPF (Windows Presentation Foundation) applications in Visual C#.NET on both Oracle and SQL Server database, testing with users, implementation through Development, Quality Assurance (QA), Production and Disaster Recovery environments. Supporting users and writing operation documents including User Helps (manuals) will also be required.
  • As well as application development, this role will also include all aspects of system constructions and support for existing programmes which are written as WinForms (C#.NET) applications. Also, applications written in other languages like MS VBA for Excel and Access, MS VB and MS Excel Macros will also be required.

Additional Tasks

  • Defining Database objects required in systems to connect with SQL and Oracle Database Administrators in both London and New York.
  • Providing script for database inquiry languages, i.e., T-SQL (SQL Server) and PL/SQL (Oracle) to perform data analysis based on requirements from business parties.
  • Setting up a system distribution method to Citrix and application servers for both Web and Window applications.
  • Troubleshooting systems in an event of failure and implementing necessary solutions by checking Windows Operating System, Internet Information Server and any other relevant environments where the applications are running. In some case this role will act to liaise with other application support team staff.
  • Following the existing team programming policy to keep a common development style to be shared in team members.
  • Updating versions of MS .Net Framework and MS Visual .NET platform to include any necessary changes of existing systems running in Production.
  • Liaising with the relevant support teams such as other Development sections, Technical Support, Network and Infrastructure and DBA where Business users experience system problems.
  • Assessing the impact of data processing loads on SQL and Oracle database and, when appropriate, finding alternative approaches.
  • Rolling out changes with a coordination of Release manager. It is important to maintain the change history of applications

GCS is acting as an Employment Business in relation to this vacancy.

Systems Engineer - Grangemouth
Adecco
Falkirk
In office
Mid
£35/hour - £40/hour
RECENTLY POSTED

System Engineer

Rate - £40 an hour

Duration - 12 months initially

Location - Grangemouth

Ir35 - Inside (Must use an umbrella company)

We have an exciting opportunity for a Systems Engineer to join a leading organisation based in Grangemouth. You will be responsible for developing, implementing, and maintaining Information Systems and Manufacturing Execution Systems. The role involves working with a range of systems and coding languages to integrate and streamline production processes from top to bottom.

Accountabilities

  • Deliver a key automation service to multiple business units.
  • Utilise in-depth knowledge of SQL Server to design and maintain databases, ensuring data integrity and security.
  • Develop custom applications using C#, HTML and Java to extend the functionality of manufacturing execution systems.
  • Design and implement user-friendly web interfaces and dashboards for monitoring and controlling manufacturing processes.
  • Provide technical support and training to end-users on system functionalities and best practices.
  • Follow safe systems of work for all daily activities, maintaining the highest HSEQ standards.

Qualifications

  • In-depth knowledge and experience with SQL Server, including database design, query optimisation, and performance tuning.
  • Knowledge of C# and HTML for developing custom applications and web interfaces, with a strong understanding of web design principles and user experience best practices (advantageous).
  • Knowledge of AVEVA System Platform or similar products (advantageous).
  • Experience using AI tools to assist with code development (advantageous but not essential).
AI Engineer (ChatGPT enterprise) London - £650 p/d outside IR35
Akkodis
City of London
In office
Mid - Senior
£500/day - £650/day
RECENTLY POSTED
TECH-AGNOSTIC ROLE

AI Engineer (ChatGPT enterprise) - Central London - £650 p/d outside IR35 A leading Asset Management & Investment firm is seeking a highly technical AI Engineer for a 6‑month contract to drive cutting‑edge automation across internal operations. You will play a pivotal role in transforming how the organisation manages staff performance, operational workflows, and manual decision‑making. Your mission: take human‑heavy processes and turn them into efficient, scalable, AI‑powered systems, using ChatGPT Enterprise as the core engine. This is an opportunity to own end‑to‑end AI automation delivery as the first member of their AI & Data team. What You'll Do Analyse internal processes related to staff performance management, operational tracking, and business workflows. Design, build, and deploy AI‑driven automations that streamline manual tasks and remove human bottlenecks. Develop internal tools and copilots using ChatGPT Enterprise to enhance productivity, improve reporting, and enable self‑service across teams. Implement retrieval‑based workflows, prompt‑engineering best practices, and automated decision trees that support management processes. Build integrations with existing systems (HR systems, CRMs, workflow tools, document repositories, etc). Key Skills & Experience Strong background in AI Engineering, automation engineering, ML/LLM application development, or intelligent workflow design. Expert hands‑on experience with ChatGPT Enterprise (mandatory). Ability to design prompts, guardrails, and workflows that ensure reliable and repeatable outcomes. Experience automating human‑centric processes such as approvals, performance reviews, document generation, or analytics workflows. Familiarity with APIs, integration frameworks, RAG‑style workflows, vector search, or orchestration tools (nice to have). How to Apply If you're an AI Engineer who wants to make a tangible impact by building real automation inside a major financial organisation, I'd love to hear from you. Send your CV over to (url removed) ASAP Modis International Ltd acts as an employment agency for permanent recruitment and an employment business for the supply of temporary workers in the UK. Modis Europe Ltd provide a variety of international solutions that connect clients to the best talent in the world. For all positions based in Switzerland, Modis Europe Ltd works with its licensed Swiss partner Accurity GmbH to ensure that candidate applications are handled in accordance with Swiss law. Both Modis International Ltd and Modis Europe Ltd are Equal Opportunities Employers. By applying for this role your details will be submitted to Modis International Ltd and/ or Modis Europe Ltd. Our Candidate Privacy Information Statement which explains how we will use your information is available on the Modis website

Senior Java Developer
Hays Technology
London
Hybrid
Senior
£700/day - £740/day
RECENTLY POSTED

I am currently working with a London-based Financial Services client who are actively seeking a Senior Java Developer to work on the development of a business-critical application with a range of cutting-edge technologies.

What you’ll need to succeed:

  • 10+ years’ Java Development experience in an enterprise environment, ideally Financial Services.
  • Extensive Springboot, Spring batch, and Spring integration experience.
  • Extensive experience with Oracle and/or Postres - Must Have.
  • Extensive AWS experience with Terraform - Must Have.
  • Strong experience translating requirements from stakeholders into technical solutions.
  • Good working knowledge of Jira.

What you’ll get in return:

  • Initial 12-month contract with extensions.
  • Up to 740pd Umbrella.
  • 3-days/week on-site in London.

What you need to do now:
If you’re interested in this role, click ‘apply now’ to forward an up-to-date copy of your CV, or call us now.
If this job isn’t quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career.

Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C’s, Privacy Policy and Disclaimers which can be found at (url removed)

Java Developer, Contract, Inside IR35
Brio Digital
London
Hybrid
Mid - Senior
£550/day - £600/day
RECENTLY POSTED
+3

Java Developer Contract: 12 months Rate: 600 per day (Inside IR35) Location: UK (Remote some days in London, Manchester or Leeds (adhoc) This role sits within a large-scale NHS digital transformation programme delivered via a leading consultancy partner. The programme focuses on modernising critical healthcare systems, improving access to services, and enabling seamless integration across national and local platforms. The work involves building scalable, secure, and interoperable digital services that support high-volume user interactions and integrate with multiple systems across the healthcare ecosystem. The Role As a Java Developer, you will be responsible for designing, building, and maintaining high-quality backend services within a complex, distributed system. You will work closely with product, architecture, and engineering teams to deliver robust, scalable solutions that meet both user and system requirements. Key Responsibilities Design, develop, and maintain Java-based backend services Build scalable APIs and microservices within a distributed architecture Collaborate with Product Managers, Architects, and other Engineers Contribute to system design, technical decisions, and best practices Ensure code quality through testing, code reviews, and CI/CD pipelines Work with cloud-based infrastructure and containerised environments Support integration across multiple internal and external systems Troubleshoot and resolve performance and production issues Required Experience Strong experience in Java development (Java 8+ / Spring Boot) Proven experience building microservices and RESTful APIs Experience working in Agile delivery environments Strong understanding of software engineering best practices Experience with CI/CD pipelines and version control (e.g. Git) Ability to work in complex, multi-stakeholder environments Experience working on NHS or public sector digital programmes Knowledge of healthcare interoperability standards (e.g. FHIR, HL7) Experience with cloud platforms (AWS, Azure, or GCP) Experience with containerisation (Docker, Kubernetes) Familiarity with event-driven architectures (Kafka or similar) Apply now

Java Developers (NPPV3+SC)
Lucid Support Services Ltd
London
Hybrid
Mid - Senior
Private salary
RECENTLY POSTED
+10

SC + NPPV3 Cleared Java Developer (6 - Month Contract)

  • Location: Remote (with occasional on - site visits to London)
  • Clearance Required: Active SC and NPPV3
  • Contract Length: 6 months
  • Inside IR35
  • Start: ASAP

Overview

We are seeking an experienced Java Developer with active SC and NPPV3 clearance to join a secure government - focused project on a 6 - month contract. The role is primarily remote, with occasional travel to London for key workshops, sprint ceremonies, or stakeholder sessions. You ’ ll be working within a high - performing agile team delivering secure, scalable, and resilient services for a public - sector environment.

Key Responsibilities

  • Design, develop, and maintain secure Java - based applications and microservices
  • Contribute to solution architecture, technical design, and integration planning
  • Work closely with security, DevOps, and product teams to ensure compliance with government security standards
  • Participate in code reviews, pair programming, and continuous improvement initiatives
  • Troubleshoot complex issues across distributed systems
  • Support deployment pipelines and CI/CD processes in a secure environment
  • Produce high - quality technical documentation and contribute to knowledge sharing
  • Attend occasional on - site meetings in London as required by the project

Essential Skills & Experience

  • Active SC + NPPV3 clearance
  • Strong commercial experience with Java 11+
  • Hands - on experience with Spring Boot, Spring Cloud, or similar frameworks
  • Solid understanding of RESTful APIs, microservices, and distributed systems
  • Experience working in secure government or policing environments
  • Familiarity with CI/CD pipelines (Jenkins, GitLab CI, GitHub Actions, etc.)
  • Strong knowledge of containerisation (Docker, Kubernetes)
  • Experience with cloud platforms (AWS, Azure, or GCP)
  • Proficient in writing clean, testable code using JUnit, Mockito, or similar frameworks
  • Comfortable working in Agile/Scrum teams

Desirable Skills

  • Experience with Kafka, RabbitMQ, or other messaging systems
  • Knowledge of Terrafor m, Ansible, or other IaC tools
  • Exposure to event - driven architectures
  • Understanding of security - by - design principles
  • Experience working with public - sector digital services or law - enforcement systems
Senior Java Developer
Qualient Technology Solutions UK Limited
West Midlands
In office
Senior
Private salary
RECENTLY POSTED
+17

We at Qualient looking for Senior Java Developer with Active SC Clearance.

Job Description:-

Essential: Java 17+, Spring Boot, Spring DataJPA, Spring Integration, Spring Batch, Microservices, Quartz, SQL Database (PostgreSQL), JPA (Hibernate), REST and SOAP Web Services, Messaging (ActiveMQ), Maven, Junit, Jenkins, AWS Cloud hosting and its components, Postgres/Aurora, Bootstrap, Docker, TDD, Agile (Scrum), Jaspersoft, Spring extension projects (Data, Cloud, Batch, Security), Angular.

Public sector experience
8-10 years of hands-on experience with large scale Spring based Java projects.
Must have experience of supporting live systems and diagnosing incidents.
Experience in large scale integration projects involving microservices, messaging, web-services and distributed systems.
Experience with web-services - (SOAP and RESTful)
Experience with containerisation (Docker)
Experience with testing frameworks like JUnit, Mockito, Powermock, JMock, DBUnit, TestContainers.
Experience of connecting processes across several systems with message brokers like ActiveMQ
Experience of Continuous Integration methodologies - Maven, GIT, Jenkins, SonarQube and Stash Repository
Experience of developing in a Linux development environment
Experience of working with a suite of Atlassian products
Experience of working with open-source database management systems like PostgreSQL
Experience of working with AWS services, EC2, SQS, RDS, DynamoDB, S3, Route53, KMS, Cloudwatch
Agile development methods - Scrum, Kanban, TDD, BDD etc
Strong analytical and decision-making abilities

Desired:
Experience in AWS DevOps
Experience of working with Spring Cloud
Experience of working with Postfix
Experience of using with monitoring tools - Grafana and Prometheus
Creates a cohesive working environment and build high performing teams
Strong stakeholder management
Expertise in Risk management

ADW Developer - Urgent - Outside of IR35
Cloud Consulting
Andover
Hybrid
Mid - Senior
£450/day
RECENTLY POSTED
TECH-AGNOSTIC ROLE

Cloud Consulting have an urgent requirement for an experienced ADW Developer to join a high-profile project for a leading company.

The role is a hybrid one - 2 days on-site in Andover, and 3 days remote, and is outside of IR35.

The role requires Security Clearance.

Responsibilities

  • Designed subject areas using RPD (Repository) design in Oracle Analytics.
  • Designed, developed, and implemented Oracle Analytics Server (OAS) security including users, roles, and data-level security.
  • Designed, developed, and implemented ODI (Oracle Data Integrator) mappings for ETL processes.
  • Designed, developed, and implemented Data Warehouse solutions including data modelling and integration.
  • Developed and implemented OAS reports and dashboards to support business analytics and reporting needs.
  • Provided production support for existing live OAS, ODI, data warehouse objects.
  • Analysed and resolved data, ETL, and reporting issues to ensure system stability.
  • Performed performance tuning of RPD objects, ODI mappings, queries, and reports.
  • Maintained and documented standard processes, procedures, and technical documentation.

If you are interested, please forward a copy of your C.V in the first instance.

React Native Developer
Anson McCade Ltd
London
Hybrid
Mid - Senior
£500 - £575
RECENTLY POSTED

£550-£575 per day (Inside IR35)
London (Hybrid)
6 months | ASAP start

We’re looking for an experienced React Native Developer to join a high-profile digital programme within a large-scale insurance provider.

This is a hands-on role suited to someone who can take real ownership of features, contribute to technical improvements, and communicate ideas clearly across engineering and stakeholder teams.

Key Skills & Experience

  • Strong experience with React Native
  • Solid Back End experience with Node.js
  • Insurance domain experience
  • Proven ability to own feature delivery end-to-end
  • Comfortable contributing to technical design and improvements
  • Strong communication skills - able to articulate ideas clearly and concisely

Desirable

  • Experience with TanStack Query
  • Familiarity with NestJS
  • Integration testing experience (ideally Detox or Appium)
  • Exposure to system/service design

Get in touch with Connor Smyth at Anson McCade

Niche Configuration Analyst
VIQU IT
Warwick
Hybrid
Mid - Senior
£500/day - £600/day
RECENTLY POSTED
TECH-AGNOSTIC ROLE

Niche Configuration Analyst Warwickshire / Hybrid Outside IR35

A well-established public-sector organisation in Warwickshire is undertaking a major records management system transformation, migrating to Niche RMS. They are seeking an experienced Niche Configuration Analyst to support the technical onboarding and configuration of the platform as part of a wider programme.

This role is focused on hands-on backend configuration, working directly within Niche to configure workflows, processes, and system logic in line with operational requirements.

Key Skills & Experience:

  • Proven experience configuring Niche RMS, specifically backend workflows and process logic
  • Strong understanding of Niche configuration, system administration, and operational setup
  • Experience implementing workflow, role, permission, and process changes within RMS platforms
  • Background working in policing, justice, or other highly regulated environments
  • Ability to interpret requirements and execute configuration changes independently
  • Experience supporting system onboarding and early-phase implementations

Contract Details:

  • Role: Niche Configuration Analyst
  • Rate: £500 £600 per day (Outside IR35)
  • Duration: Initial 12 months (likely extension)
  • Location: Hybrid up to 2 days per week on-site in Warwickshire
  • Start Date: February 2026 (flexible)
  • Security: NPPV3 clearance required or ability to obtain

Apply now to speak with VIQU IT in confidence. Or reach out to Suzie Stone via the VIQU IT website.

Do you know someone great? We ll thank you with up to £1,000 if your referral is successful (terms apply).

For more exciting roles and opportunities like this, please follow us on LinkedIn IT Recruitment.

Java DevOps Engineer
Meritus
Guildford
Hybrid
Mid
£65/hour - £70/hour
RECENTLY POSTED

Software Engineer
Geospatial Cloud Platforms
Newcastle based Hybrid

We are hiring a Software Engineer to join a modern Agile Scrum team building cloud native geospatial software used in real world, mission critical environments.

This role offers genuine end to end engineering ownership. You will be involved from initial design through development, testing and deployment, working on scalable, resilient cloud based services using current technologies.

The position is Newcastle based with flexible working in place. The team works in the office three days per week, with two days from home.

What you’ll be doing

Designing and building high quality, maintainable Java based services
Developing reusable patterns that improve delivery speed and engineering standards
Writing unit and automated tests to support robust, production ready software
Taking part in design and code reviews with a focus on security, scalability and long term maintainability
Documenting solutions clearly and sharing knowledge across the team
Working closely with the Scrum team to meet sprint commitments
Participating fully in sprint planning, stand ups and reviews in a true Agile environment

You’ll be expected to operate with a strong sense of integrity and awareness of compliance requirements, as the software supports sensitive and high value use cases.

What we’re looking for

Essential experience

Strong Java development experience
Building and deploying cloud based services
Unit testing and automated testing practices

Desirable experience

DevSecOps exposure using tools such as Tekton, ArgoCD or SonarQube
Container platforms such as Kubernetes or OpenShift
Quarkus framework
Front end development with Angular

Security clearance

This role requires the ability to obtain or already hold SC clearance. Candidates must be eligible to go through the clearance process.

Java Developers x 2 (Newcastle)
CBSbutler Holdings Limited trading as CBSbutler
Newcastle upon Tyne
Hybrid
Mid
£500/day - £525/day
RECENTLY POSTED

Java Developer (x2) - SC Cleared
Guildford or Newcastle - 2/3 days per week onsite
525 per day (Inside IR35)
Active SC Clearance Required

Join a collaborative Agile Scrum team as a Java Developer, building innovative geospatial solutions using modern cloud technologies.

You’ll work across the full software development lifecycle, designing and developing scalable cloud-based applications, writing clean, maintainable code, and ensuring quality through testing and best practices.

Alongside contributing to code reviews and reusable solutions, you’ll collaborate closely with your team in Agile ceremonies to deliver impactful, high-quality software.

What We’re Looking For

  • Strong experience with Java

  • Experience in cloud services development

  • Solid understanding of unit testing frameworks and practices

  • DevSecOps awareness (e.g. Tekton, ArgoCD, SonarQube) (desirable)

  • Experience with Kubernetes or Red Hat OpenShift (desirable)

  • Familiarity with the Quarkus framework (desirable)

  • Front-end development experience with Angular (desirable)

If this Java Developer role is of interest, apply now!

Java Developers x 2 - SC Cleared
CBSbutler Holdings Limited trading as CBSbutler
Multiple locations
Hybrid
Junior - Mid
£60/hour - £70/hour
RECENTLY POSTED

Java Developer - Cloud Services

  • 12 month initial contract

  • Hybrid working out of Newcastle

  • SC Cleared role

  • 70 p/h - Inside IR35

Key Skills:

  • Java Developer

  • Cloud Services

  • RedHat/Kubernetes

Role Overview -

The Software Engineer will join our collaborative, forward-thinking Agile Scrum team, working on innovative Geospatial software, using the latest cloud-based technologies. The engineer will be involved in every stage of the software development lifecycle, from initial design through development, testing, and deployment, delivering robust, scalable cloud-based services.

The role is based at our Newcastle office. Flexible working arrangements are in place for the team. The successful candidate is expected to be in the office 3 days a week, with the opportunity to work 2 days from home.

Responsibilities

  • Develop high-quality, readable, scalable and easily maintained code, using Java and related technologies, meeting requirements and coding standards.
  • Develop reusable patterns and encourage innovation that will enhance team velocity.
  • Contribute to quality assurance by writing unit and automated tests.
  • Conduct design and code reviews to ensure code developed meets coding best practices guidelines, unit testing, security, and scalability and maintainability guidelines
  • Ensure code is sufficiently documented and share knowledge of solutions implemented.
  • Participate in sprint planning, reviews, and daily stand-ups in a true Agile environment, contributing to agile based estimating.
  • Work with the scrum team to meet the sprint commitments

Essential

  • Java
  • Cloud Services development
  • Unit testing

Desirable

  • DevSecOps awareness using tools such as Tekton, ArgoCD, SonarQube
  • Red Hat Openshift container platform or Kubernetes
  • Quarkus Framework
  • Front end development using Angular
Oracle Fusion Cloud Developer/Technical Consultant (Inside IR35)
Apps IT Ltd
Midlands
Hybrid
Mid - Senior
£525/day
RECENTLY POSTED

We are seeking an Oracle Developer with around 5 years’ experience to support a key data migration project in the East Midlands. This role will focus on designing and delivering ETL processes to migrate data from Oracle E-business Suite into Oracle Fusion Cloud.

Key Responsibilities:

  • Design, develop, and implement ETL processes for data migration
  • Extract, transform, and load data from E-business Suite into Fusion Cloud
  • Ensure data quality, integrity, and consistency throughout the migration life cycle
  • Collaborate with functional and technical teams to map and validate data
  • Troubleshoot and resolve data and integration issues
  • Support testing phases and post-migration validation

Key Skills & Experience:

  • Approximately 5 years’ experience as an Oracle Developer
  • Strong experience with ETL development and data migration projects
  • Proven experience working with Oracle E-business Suite and Oracle Fusion Cloud
  • Solid SQL and PL/SQL skills
  • Experience with Oracle integration tools (eg ODI, OIC) desirable
  • Strong analytical and problem-solving skills

Additional Information:

  • 6-month initial contract with potential extensions
  • Based in the East Midlands (3 days per week on-site presence expected)

If you are an Oracle Developer with a strong ETL background and experience in cloud migration projects, we would like to hear from you.

Niche Configuration Analyst
VIQU Ltd
Warwickshire
Hybrid
Mid - Senior
£500/day - £600/day
RECENTLY POSTED
TECH-AGNOSTIC ROLE

Niche Configuration Analyst - Warwickshire/Hybrid - Outside IR35

A well-established public-sector organisation in Warwickshire is undertaking a major records management system transformation, migrating to Niche RMS. They are seeking an experienced Niche Configuration Analyst to support the technical onboarding and configuration of the platform as part of a wider programme.

This role is focused on hands-on Back End configuration, working directly within Niche to configure workflows, processes, and system logic in line with operational requirements.

Key Skills & Experience:

  • Proven experience configuring Niche RMS, specifically Back End workflows and process logic
  • Strong understanding of Niche configuration, system administration, and operational setup
  • Experience implementing workflow, role, permission, and process changes within RMS platforms
  • Background working in policing, justice, or other highly regulated environments
  • Ability to interpret requirements and execute configuration changes independently
  • Experience supporting system onboarding and early-phase implementations

Contract Details:

  • Role: Niche Configuration Analyst
  • Rate: £500-£600 per day (Outside IR35)
  • Duration: Initial 12 months (likely extension)
  • Location: Hybrid - up to 2 days per week on-site in Warwickshire
  • Start Date: February 2026 (flexible)
  • Security: NPPV3 clearance required or ability to obtain

Apply now to speak with VIQU IT in confidence. Or reach out to Suzie Stone via the VIQU IT website.

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SC cleared Technical Architect - inside iR35 - API's and AWS
fortice
Not Specified
Fully remote
Mid - Senior
£450/day
RECENTLY POSTED

We are heading up a recruitment drive for a global consultancy that require an SC cleared Technical Architect to join them on a major government project that’s based remotely.

Essential Skills & Experience

  • Significant experience as a technical or solution architect in complex digital or enterprise environments.
  • Strong software engineering foundation, with practical knowledge of modern application architectures (eg, microservices, APIs, distributed systems).
  • Proven ability to design and document architectures using visual modelling techniques such as C4, UML, and data flow diagrams.
  • Hands-on experience with at least one major cloud provider, ideally AWS, including Infrastructure as Code, platform services, networking, and security controls.
  • Deep understanding of secure and resilient system design, including authentication patterns, threat modelling, performance considerations, and observability.
  • Familiarity with Ruby, Python, or Java, and modern development practices such as CI/CD, TDD, and containerisation.
  • Experience guiding technology decisions, evaluating options, and influencing senior stakeholders.
  • Strong understanding of data modelling, integration approaches, API design, messaging patterns, and interoperability challenges.
  • Exceptional communication skills, with the ability to simplify complex topics and build consensus across diverse groups.
  • Ability to work across the full delivery life cycle, from discovery through implementation and service transition.

Desirable Skills & Experience

  • Experience with enterprise ERP platforms (eg, Oracle E-business Suite).
  • Knowledge of UK government digital service standards, architecture frameworks, and assurance processes.
  • Understanding of Domain-Driven Design or event-driven architectural approaches.
  • Exposure to SRE, platform engineering, or infrastructure architecture disciplines.
  • Experience contributing to architectural communities of practice or governance forums.
  • Prior consultancy experience working across multiple product teams or client environments.

Personal Attributes

  • Strong systems thinking and analytical capability, with the ability to understand complex environments quickly.
  • Comfortable operating in ambiguous or fast-changing environments while maintaining architectural clarity.
  • Collaborative, empathetic, and committed to building trust with stakeholders at all levels.
  • Dedicated to continuous learning, technical curiosity, and staying current with emerging technologies.
  • Pragmatic and outcome-focused, balancing long-term architectural quality with short-term delivery constraints.

Technical Environment

The assignment covers a diverse mix of modern cloud-native services and Legacy enterprise platforms.

Exposure to some of the following areas would be beneficial:

  • Modern languages and frameworks including Ruby, Java, and Python
  • AWS cloud services, Infrastructure as Code, platform as a service tooling
  • Engineering practices such as DDD, TDD, CI/CD, automated testing and Git workflows
  • Multi-tier platform strategies including centralised data and business logic layers
  • Enterprise Oracle software including ERP components
  • Mac-based development environments and public GitHub repositories
Graduate Full Stack Developer
IF Recruitment Ltd
Not Specified
Fully remote
Graduate
£150/day - £175/day
RECENTLY POSTED

We have an exciting opportunity for a Graduate Full Stack Developer to join a growing software house on a three-month internship, with the potential of this role going permanent.

Our client is UK based AI transformation company pioneering a new category. This is combining AI Systems, modular software and strategic execution into deployable solutions for enterprise clients.

The Project:

Working on a greenfield build on Ms Azure, the successful candidate will focus on building a secure, scalable platform from the ground up. The system will support complex workflows, secure data management and multi - organisation collaboration within a regulated environment.

The team is intentionally small (architect + senior engineers), so we’re looking for developers who are comfortable taking ownership across the stack rather than working in highly siloed roles.

Responsibilities:

  • Strong full stack engineering capability (Back End-heavy preferred)
  • Build React frontends and Python (FastAPI) backends
  • Experience building APIs and scalable web platforms
  • Modern Front End frameworks (React or similar)
  • Create and manage PostgreSQL databases and containerised microservices
  • Cloud experience (Azure preferred, AWS acceptable)
  • Comfortable working in a small, fast-moving engineering team

Preferred Backgrounds:

  • Computer Science
  • Experience with programming in Python
  • Experience with creating and managing SQL & PostgreSQL databases.
  • Azure cloud experience advantageous.

This is an opportunity for engineers who enjoy building platforms from the ground up rather than maintaining Legacy

The client is offering interviews this week.

This role is fully remote.

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Haystack offers both remote and on-site contract Backend Engineer positions. You can filter job listings based on location preferences to find opportunities that match your availability.
Commonly required skills include proficiency in backend programming languages like Java, Python, Ruby, or Node.js, experience with databases such as MySQL or MongoDB, and familiarity with cloud platforms like AWS or Azure.
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