CONTRACT Backend Engineer Jobs

Make yourself visible and let companies apply to you.

Roles

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!

Filters applied

Backend Engineer

Contract

Salary

Location

Remote preference

Role type

Seniority

Tech stack

Sectors

Contract type

Company size

Visa sponsorship

Contract SIP/VOIP Developer

6 Month Contract

Rate - £500/day

Contract SIP Developer

event-based programming

SIP

SIP-based communications

Ensure interoperability with FreeSWITCH/Asterisk/SBC platforms or CPaaS solutions

SIP Telephony

Client Server architectures

IP Networking technologies

Web development

RDBMS

Cloud technologies especially AWS

Working knowledge of ODP (Open Development Platform)

CentOS Linux - admin/config

NodeJS and event-based programming

Open Development Platform

Freeswitch

Oracle DBA Professional

Oracle DBA

6 months - possible extensions

Sheffield or Birmingham - x5 days onsite

£365 per day inside IR35 - Umbrella only

The role holder will be incident handling and change implementation in one or more technical areas particularly Oracle DB & MySQL Server. You will be expected to provide effective technical support of the technology within Enterprise Cloud Services Infrastructure to meet customer KPI & SLA’s. Use and promote CI methodology as a standard operating tool used by the team on a daily basis to identify areas of waste and drive improvements.

What you’ll be doing - your accountabilities

Provide technical support, resolving escalated technical support issues across the lines of business to ensure systems availability to the customer.

Support the timely delivery of IT Provision,Incident handling, Service Requests and Change Management by the team to the published SLAs and KPIs

Provide technical support in the delivery of the services offered by the team and input to service productivity to achieve targets.

Provide Line Manager early sight visibility of issues and concerns that could impact the Systems Engineering objectives, and effectively manage escalations.

Support the Operational elements on transformational opportunities to help meet Enterprise Cloud Infrastructure and Technology objectives and influence the business to adopt recommendations.

Practice CI methodology as a standard operating tool used by the team on a daily basis to identify areas of waste and drive improvements.

To provide analytical and innovative input to projects/operational issues as well as support negotiations.

Programming skills is very desirable. Required programming language Python is extensively used in development and Integration support for automation. Understanding of Unix Shell Scripting would be an advantage too.

The skills you’ll need to succeed

Oracle DBA Administrator: Strong skills in Oracle DBA and a learning acumen for new database related technology preferably in latest versions

Experienced in own area, able to own and troubleshoot technical faults within the Enterprise Cloud Infrastructure (Oracle DB/MySQL) & our support structure.

Be agile - You identify opportunities to use collaborative approaches and continuous improvement. You contribute to projects as a subject matter expert or content owner.

Stakeholder Management: Able to collaborate and work effectively across complex and Matrix relationships, negotiating where needed to help support agreement.

All profiles will be reviewed against the required skills and experience. Due to the high number of applications, we will only be able to respond to successful applicants in the first instance. We thank you for your interest and the time taken to apply!

Pega CSSA - £475pd Inside IR35

3 days per week onsite in London

We’re looking for an experienced Pega CSSA to join a high-profile project in the banking sector.

Key Requirements:

3-5+ years PRPC experience (min. CSSA certified)

Proven Technical Lead experience, able to mentor and lead design reviews

Strong background in PRPC frameworks, architecture components, and integrations (XML, JMS/MQ)

Track record of delivering at least 3 large-scale PRPC projects (preferably banking)

Solid understanding of SDLC, Agile, and software architecture/SOA services

Experience with databases and technologies such as MS SQL Server, Oracle DB, Java, C#, ETL, Tableau, HTML5, JavaScript

Responsibilities:

Lead design, development, and integration of PRPC solutions

Support BA in defining business processes and translate into application design

Produce architecture design docs, define scope, and oversee build, testing, and deployment

Mentor team members and ensure best practices are applied

Engage with stakeholders at all levels, technical and non-technical

Contract Details:

Rate: £475 per day

Inside IR35

Hybrid: 3 days per week onsite in London

Test Engineer - React, Node, AWS experience

Opus Recruitment Solutions

I am working with a consultancy feeding into a public sector client, who are looking for multiple test engineers.

Inside IR35

350 per day

Weekly travel to Leeds/ Manchester / Newcastle

6 month contract

REQUIRED/NON-NEGOTIABLE: Selenium and Cucumber, Mockito, JAWS and/or Dragon, WCAG2.2 testing,

experience with:

Git, AWS stack (e.g. SQS, SNS, Lambda), Microservices, testing experience across both React-based front-end and Node JS-based backend, Swagger

AWS Date Engineer

Location: Radbroke (Hybrid - 2 days/week in office)

6 Months +

Umbrella Only - Inside IR35

About the Role

We are seeking a highly skilled and experienced Senior AWS Data & ML Engineer to join our team in Radbroke. This hybrid role offers the opportunity to work on cutting-edge machine learning and data engineering projects, leveraging the latest cloud technologies and MLOps practices.

Required / Primary Skills:

Experience in front-end development (HTML, Stream-lit, Flask

Familiarity with model deployment and monitoring in cloud environments (AWS).

Understanding of machine learning lifecycle and data pipelines.

Proficiency with Python, Pyspark, Big-data ecosystems

Hands-on experience with MLOps tools (e.g., MLflow, Airflow, Docker, Kubernetes)

Secondary Skills

Experience with RESTful APIs and integrating backend services

All profiles will be reviewed against the required skills and experience. Due to the high number of applications we will only be able to respond to successful applicants in the first instance. We thank you for your interest and the time taken to apply!

ServiceNow Developer (SPM)

6 months

Remote

Inside IR35 - Umbrella only

The ideal candidate will be responsible for designing, developing, and implementing solutions that support enterprise portfolio management, demand management, project management, and resource planning within the ServiceNow platform.

Key Responsibilities:

Design and develop ServiceNow applications and modules, with a focus on SPM.

Implement workflows, business rules, UI policies, and client scripts.

Integrate ServiceNow with other enterprise systems as needed.

Maintain and enhance existing SPM configurations and functionalities.

Provide technical support and troubleshooting for SPM-related issues.

Participate in Agile development processes including sprint planning, reviews, and retrospectives.

Create and maintain documentation for configurations, customizations, and processes.

If you are interested in this role please apply!

Job Title: ServiceNow SecOps Developer

Location: Remote (UK)

Contract Type: Contract

Overview:

We are seeking experienced and hands-on ServiceNow SecOps Developers to join our team on a contract basis. This role is focused on the implementation and development of Security Incident Response (SIR) and Vulnerability Response (VR) modules within the ServiceNow platform.

Key Responsibilities:

Design, develop, and implement solutions using ServiceNow SecOps modules, specifically SIR and VR.

Collaborate with stakeholders to gather requirements and translate them into technical solutions.

Configure and customize ServiceNow applications and services.

Ensure best practices are followed in the development and deployment of SecOps solutions.

Troubleshoot and resolve technical issues related to SecOps modules.

Provide documentation and knowledge transfer as needed.

Required Skills & Experience:

Proven hands-on experience with ServiceNow SecOps modules, particularly Security Incident Response (SIR) and Vulnerability Response (VR).

Strong understanding of ServiceNow architecture and development practices.

Experience in implementing and configuring SecOps workflows and integrations.

Ability to work independently in a remote environment.

Excellent communication and problem-solving skills.

Preferred Qualifications:

ServiceNow Certified Implementation Specialist - SIR

ServiceNow Certified Implementation Specialist - VR

Python, Golang, and Public Cloud platforms (AWS/GCP) Engineer

eTeam Workforce Limited

Job Title: Senior Software Engineer (Python, Golang, and Public Cloud platforms (AWS/GCP)

Work Mode: Hybrid (2-3 weeks from office)

Contract Duration: 6months + (extension possible based on performance)

Location Options: Sheffield/Birmingham/Edinburgh

Conversion: Candidates should be open to FTE conversion

Role Overview

We are seeking a Senior Software Engineer to join a high-performing team within one of the world’s leading financial institutions. The role involves designing and developing secure, scalable, and high-availability cloud-native services, leveraging Python, Golang, and Public Cloud platforms (AWS/GCP). This is an exciting opportunity to build impactful systems in a regulated environment while working on cutting-edge technologies.

Key Responsibilities

Design, develop, and maintain highly available REST API services and Front End clients using Python, Golang, Docker, and Cloud-Native services.

Implement and manage database schema changes using Liquibase, ensuring compliance with audit and security standards.

Collaborate with Architecture and DevOps teams to enhance and mature product capabilities.

Perform root cause analysis and resolve incidents/performance bottlenecks.

Required Qualifications & Experience

Bachelor’s/Master’s degree in Computer Science or equivalent industry experience.

Strong software engineering background with exposure to infrastructure.

5+ years of hands-on development experience with large-scale, distributed systems.

Proficiency in Python, Golang, PostgreSQL.

Experience with Liquibase or similar database change/versioning tools.

Hands-on expertise with AWS/GCP (IAM, KMS, cloud-native services, storage).

Solid understanding of DevOps practices (IaC using Terraform, CI/CD pipelines with Jenkins/GitLab CI, containerization).

Strong knowledge of security principles, compliance, and audit frameworks in enterprise systems.

Proven ability to deliver complex projects in regulated environments.

Essential Skills

Demonstrable expertise in:

Public Cloud (AWS/GCP)

Linux systems

Relational & NoSQL databases

Integration services (messaging, streaming)

RESTful API development

Containerization (Docker, Kubernetes, serverless functions)

Microservices, distributed tracing

Enterprise logging, monitoring & alerting frameworks (ELK, Splunk, Prometheus, Grafana)

Programming expertise in Python & Golang.

Good understanding of cryptography (authentication, encryption).

Non-functional testing experience.

Agile environment experience.

Desirable Skills

Experience in financial services or other regulated industries.

Exposure to Continuous Integration, Delivery, and Testing tools.

Hands-on with automation Scripting (Terraform, Ansible, etc.).

Job Title: ServiceNow SecOps Developer

Location: Remote (UK)

Contract Type: Contract

Overview:

Key Responsibilities:

Design, develop, and implement solutions using ServiceNow SecOps modules, specifically SIR and VR.

Collaborate with stakeholders to gather requirements and translate them into technical solutions.

Configure and customize ServiceNow applications and services.

Ensure best practices are followed in the development and deployment of SecOps solutions.

Troubleshoot and resolve technical issues related to SecOps modules.

Provide documentation and knowledge transfer as needed.

Required Skills & Experience:

Proven hands-on experience with ServiceNow SecOps modules, particularly Security Incident Response (SIR) and Vulnerability Response (VR).

Strong understanding of ServiceNow architecture and development practices.

Experience in implementing and configuring SecOps workflows and integrations.

Ability to work independently in a remote environment.

Excellent communication and problem-solving skills.

Preferred Qualifications:

ServiceNow Certified Implementation Specialist - SIR

ServiceNow Certified Implementation Specialist - VR

SC + NPPV3 Cleared Java Developer

SC + NPPV3 Cleared Java Developer - 6 months+ - Inside IR35 - Remote with occasional travel to London

Please note: Candidates must have a current and active SC and NPPV3 Clearance- unfortunately, applications without this cannot be considered.

Looking for a number of SC + NPPV3 Cleared Java Developers to work on a Law Enforcement programme.

Key Responsibilities:

Work on data mapping and report writing in Java.

SC + NPPV3 Cleared Java Developer - 6 months+ - Inside IR35 - Remote with occasional travel to London

Damia Group 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 our Data Protection Policy which can be found on our website.

Please note that no terminology in this advert is intended to discriminate on the grounds of a person’s gender, marital status, race, religion, colour, age, disability or sexual orientation. Every candidate will be assessed only in accordance with their merits, qualifications and ability to perform the duties of the job.

Damia Group is acting as an Employment Business in relation to this vacancy and in accordance to Conduct Regulations 2003.

SC Cleared Python Developer

SR2 - Socially Responsible Recruitment

C/C++ | Data Processing | Kubernetes | Sonar Systems | Hybrid (Southamptom)

SR2 is partnered with an industry leading consultancy on the Defence programme, supporting critical Defence innovation, and we’re looking for an experienced Full Stack Software Engineer to join the team.

This role will focus on developing robust, production-grade APIs, building data pipelines, and delivering software applications into secure containerised environments. You’ll work closely with scientists, engineers, and domain experts to ensure sonar data is processed, shared, and operationally ready.

Key Responsibilities:

Design and develop APIs for data streaming across multiple protocols (HTTP RPC, WebSockets, TCP, UDP) using JSON/Protobuf

Support engineers and scientists in adopting and using APIs effectively

Build and maintain data processing pipelines in collaboration with domain experts

Review and contribute to codebases across Python and C++

Create and maintain unit and integration tests for reliability and quality

Deliver applications into container orchestration systems like Kubernetes

Document design decisions and ensure knowledge sharing across teams

Solve complex technical challenges across multi-technology environments

Skills & Experience Required:

Strong background in software engineering and data management principles

Proven expertise with Python and a strongly-typed language (C/C++)

Extensive experience designing and deploying production-grade APIs

Hands-on experience delivering operational software into live environments

Familiarity with Kubernetes and containerisation workflows

Strong problem-solving and collaboration skills, especially in multi-team projects

Commitment to software quality, best practices, and technical documentation

The Details:

6 months

Rate: £500 p/d

Location: Hybrid, Southampton 1-2 days per week

Start: ASAP

Cloud Software Engineer - GSK0JP

AI/ML Cloud Software Engineer

Kings Cross, London, or Stevenage (2-3 days on site)

888 per day via umbrella Inside IR35

6-9 Months (may extend but TBC)

Our pharmaceutical client see a world in which advanced applications of Machine Learning and AI will allow them to develop novel therapies to existing diseases and to quickly respond to emerging or changing diseases with personalized drugs, driving better outcomes at reduced cost with fewer side effects. It is an ambitious vision that will require the development of products and solutions at the cutting edge of Machine Learning and AI. We’re looking for a highly skilled software engineer to help us make this vision a reality.

Competitive candidates will have a track record of writing and shipping quality, well-documented and well-tested software - preferably in the AI/ML industry. Candidates should be comfortable with modern, cloud-native computing, and with continuous development and production deployment on cloud platforms to large user populations. Educational or professional background in the biological sciences is a plus but is not necessary; passion to help therapies for new and existing diseases, and a pattern of continuous learning and development is mandatory.

The AI/ML team is built on the principles of ownership, accountability, continuous development, and collaboration. We hire for the long term, and we’re motivated to make this a great place to work. Our leaders will be committed to your career and development from day one.

Key responsibilities

Software and infrastructure development for a Python web application

Integration of AI/ML components with frontend, backend, data and compute infrastructure

Responsible for high quality software implementations according to best practices, including automated test suites and documentation

Develop, measure, and monitor key metrics for all tools and services and consistently seek to iterate on and improve them

Participate in code reviews, continuously improving personal standards as well as the wider team and product

Liaise with other technical staff and data engineers in the team and across allied teams, to build an end-to-end pipeline consuming other data products

Basic qualifications:

Cloud experience (e.g. Google Cloud and cloud run essential) including core web application infrastructure is essential

CSED backend

Demonstrated experience of Python backend development (e.g. using FastAPI)

React frontend experience ideally

Strong skills in Python

Unit testing experience (e.g. pytest)

IaaS knowledge (e.g. Terraform) including best practices for module development

Knowledge of agile practices and able to perform in agile software development environments

Strong knowledge of modern software development tools / ways of working (e.g. git/GitHub, DevOps tools for deployment) - should be able to show practice of commit early and deploy often

Hosting: GCP (GKE and Cloud Run) essential

Deployment: Terraform and GitHub Actions - essential

Agile Methodology

Preferred qualifications:

Experience with Docker or containerized applications, especially architecture of multi-container applications

Demonstrated experience with biological or scientific data (e.g. genomics, transcriptomics, proteomics), or pharmaceutical industry experience

Knowledge of AI/ML approaches and deployment of AI/ML powered applications - especially using language models or NLP

Experience with Kubernetes and Google Kubernetes Engine would be an advantage

Credit Risk .Net Developer

I am currently working with a global Investment Bank who are actively seeking a .Net Developer to join a leading team in the risk space.

What you’ll need to succeed

10+ years’ .Net Development experience within investment banking.

Strong experience with Azure Cloud Services.

Good understanding of DevOps best practices.

Experience with on-premises SQL services.

Good knowledge of credit/market risk.

What you’ll get in return

Up to 650pd in-scope (Umbrella).

Initial 6-month contract with extensions.

London-based hybrid working.

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 Technical Lead

The Bridge IT Recruitment

Java Technical Lead Contract Opportunity Inside IR35 UK Wide

The Bridge IT are supporting a flagship digital transformation programme, seeking experienced Java Technical Leads to join established engineering teams. This is a long-term contract with significant scope for impact, working on critical national services.

Day rate: £600 £625 p/d (Inside IR35)

Location: Hybrid with occasional travel

Duration: Until March 2026 (initial), with expectation of 12-month extension

Clearance: SC Clearance required (will sponsor if required)

The Role:

As a Technical Lead, you will be both a hands-on engineer and a leader of a cross-functional team, helping shape the technical direction of large-scale digital platforms. You will work closely with product and engineering colleagues to deliver high-quality, secure, and scalable services, while also coaching and mentoring team members to build capability and best practice.

This is a role for someone who enjoys technical problem-solving, driving engineering standards, and making a positive impact at scale.

Key Skills & Experience:

We re looking for individuals who can demonstrate:

Software Engineering (Java focus) modern development of digital products using Java, microservice architectures, and hexagonal architecture.

Data & Messaging hands-on experience with MongoDB and Kafka in production environments.

Cloud & Automation understanding of modern cloud infrastructure (AWS), Infrastructure as Code (Terraform), CI/CD pipelines (GitLab CI, Jenkins).

Technical Leadership experience leading engineering teams, setting direction, establishing standards, and providing mentorship and guidance.

Engineering Best Practice strong knowledge of version control, secure design, quality assurance, and resilient system design.

Collaboration proven ability to work in multi-disciplinary environments, engaging with a wide range of stakeholders, and contributing to wider engineering communities.

If this sounds of interest, please apply to hear more!

Full Stack Software Engineer

Full Stack Software Engineer

The location of the role is London (hybrid working).

The duration of the contract is 6 months.

The pay rate on offer is 750 - 880 per day (via Umbrella - inside IR35).

Key responsibilities

Front end implementation for a React application

Visualizing and interacting with scientific data and workflow progression

Integration of AI/ML components with frontend, backend, data and compute infrastructure

Responsible for high quality software implementations according to best practices, including automated test suites and documentation

Develop, measure, and monitor key metrics for all tools and services and consistently seek to iterate on and improve them

Participate in code reviews, continuously improving personal standards as well as the wider team and product

Liaise with other technical staff and data engineers in the team and across allied teams, to build an end-to-end pipeline consuming other data products

Basic qualifications:

5+ years’ experience with frontend software development (e.g. React)

Demonstrated experience of Python development (e.g. using FastAPI)

Bachelor’s degree in a relevant field (including computational, numerate or life sciences), or equivalent experience

Cloud experience (e.g. Google Cloud and cloud run preferred) including core web application infrastructure is essential

Strong skills in JavaScript/TypeScript and Python, ensuring best practices are followed for clean and scalable code

Demonstrated ability to work directly with designers, particularly using Figma, to convert design prototypes into engaging and interactive applications

Experience in using automated testing tools, including Playwright and Cypress, to create, maintain, and execute comprehensive test suites

Sound understanding of web development best practices, modern design principles, and continuous integration workflows

Knowledge of agile practices and able to perform in agile software development environments

Strong knowledge of modern software development tools / ways of working (e.g. git/GitHub, DevOps tools for deployment) - should be able to show practice of commit early and deploy often

Preferred qualifications:

Experience with Docker or containerized applications, especially architecture of multi-container applications

Demonstrated experience with biological or scientific data (e.g. genomics, transcriptomics, proteomics), or pharmaceutical industry experience, especially design of data visualisations

Knowledge of agent-based approaches (e.g. LangGraph, PydanticAI, AutoGen)

GIS Developer

Intuition IT Solutions Ltd

At least 5-8 years of experience in utility industry especially on UK based Gas Distribution business

Should have a thorough understanding of Gas data model of UK Gas consortium and should have implemented the Esri solution for Gas distribution client from scratch

Should have worked in support role in handling the requests for ArcGIS Desktop, AGOLS and Mobile application

Should have thorough knowledge on support life cycle model in handling the tickets according to SLA

Should have a thorough knowledge on ArcFM 10.2.1c for ArcGIS 10.2.1, especially on ArcFM extensions and Autoupdators configuration

Should have a good knowledge on ArcFM Geodatabase Framework to handle the sessions post queue and user configuration & management

Should have a thorough knowledge on Esri UK’s LocatorHub Dashboard, LocatorHub Transformation Suite and should have hands-on experience on handling ABP data load process on LocatorHub and reconcile mechanism

Should have experience in maintaining Interface components between Esri and any downstream system (SAP is preferable) through a Middleware (SAP PI is preferable)

Should have thorough knowledge on ArcGIS Server which includes feature service to create and update of feature and offline sync

Should have thorough knowledge on ArcGIS Online (AGOL) and Esri Collector App, Survey123, & Explorer for ArcGIS with its installation, configuration, and maintenance details, Web App Builder, Experience Builder, Mobile Cache Generation (MMPK)

Should have knowledge on SWEET for ArcGIS app creation and configuration

Should have knowledge on Esri SDK for both Esri Desktop and RestFull APIs

Should have developed and implemented Esri projects using Geoprocessing Model (GP) services and Python tools using Esri APIs and External libraries

Should have thorough knowledge on .net framework 4.0 and higher version and VS 2012 with C#, ASP.NET, MVC, and development of Windows and scheduled services

Should have thorough knowledge on enterprise geodatabase, especially on Oracle Spatial 12c or MS SQL Server, with thorough knowledge on PL/SQL DML commands, Procedures, Packages, and Sequence

Should have thorough knowledge on DoJo objects with JQuery 2.0, Javascript, HTML5, and CSS

Experience in implementing GIS Web application using industry standard technology, Esri or any Open Source technology like GeoServerGIS Developer

KDB+/q Developer

Huxley Banking & Financial Services

An Investment Banking client is currently seeking a KDB+/q Developer to join their Front Office.

The initial contracts will be for 12 months rolling paying up to £1200pd via an Umbrella company. The Bank is Based in the City of London and has a Hybrid working policy.

Required experience:

Extensive KDB+/q development experience

Experience working in Front Office environments working on Real Time Trading Systems

Please share an updated CV ASAP if you’d like to be considered for the position and I’ll be in touch if suitable.

Please visit our website to find out more about our Key Information Documents. Please note that the documents provided contain generic information. If we are successful in finding you an assignment, you will receive a Key Information Document which will be specific to the vendor set-up you have chosen and your placement.

To find out more about Huxley, please visit our website

Huxley, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy | Registered office | 8 Bishopsgate, London, EC2N 4BQ, United Kingdom | Partnership Number | OC387148 England and Wales

SC Cleared Solutions Architect - Inside IR35

Opus Recruitment Solutions

I am working with a public sector client who need a Solutions Architect to join a 6 month project.

Inside IR35

6 month

2x a month - Manchester

We’re looking for a skilled and proactive Database Administrator to join our Enterprise Cloud Services team, supporting an estate of over 1000 databases across 1500 servers. You’ll play a key role in incident handling, change implementation, and technical support across Oracle DB and MySQL Server environments.

This is a hands-on role where you’ll contribute to the stability, performance, and continuous improvement of our infrastructure, ensuring we meet customer SLAs and KPIs. You’ll also be part of a team that values collaboration and innovation

Key Responsibilities

Provide expert technical support and resolve escalated issues across Oracle DB and MySQL environments.

Deliver IT provisioning, incident handling, service requests, and change management in line with SLAs and KPIs.

Support service delivery and contribute to productivity improvements.

Escalate risks and issues to the Line Manager with early visibility.

Contribute to transformational initiatives within Enterprise Cloud Infrastructure.

Apply Continuous Improvement (CI) methodology daily to identify inefficiencies and drive enhancements.

Offer analytical and innovative input to projects and operational challenges.

Support automation and integration through programming and scripting.

Skills & Experience Required

Strong Oracle DBA skills with a passion for learning new database technologies.

Experience supporting and troubleshooting within Enterprise Cloud Infrastructure.

Familiarity with MySQL Server and legacy systems.

Programming skills - proficiency in Python is highly desirable.

Understanding of Unix shell scripting is a plus.

Ability to work in agile environments and contribute as a subject matter expert.

Excellent stakeholder management and collaboration skills across complex teams.

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.

Senior Software Engineer (Rust)

I’m currently recruiting for a long-term contract position to start ASAP. The opportunity is outside IR35 and remote with flexibility on rates. Project Scope

Develop new software services in a modern programming language to replace legacy systems and enable distributed operation.

Implement reliable communication layers and ensure seamless integration between software and hardware.

Design and deliver fault-tolerant solutions capable of operating in demanding environments.

Support testing, verification, and documentation to maintain high standards across the project lifecycle.

Key Skills

Very experienced in professional software development, especially Rust

Proficiency in Python or similar higher level language

Experience with Linux-based development

Experience with inter-process communication protocols

If you think you’d be a good fit, get in touch.

Job Title: Contract Solutions Architect - Software Focus (SC Cleared)

Location: Hybrid (Remote & Ad Hoc Leeds/Manchester/London)

Contract Type: Contract

IR35: Inside

Duration: 6 Months +

Rate: 450- 525 (DOE)

Clearance Required: Active SC Clearance

About the Role

We are seeking an experienced Solutions Architect with a strong software engineering background to join a high-profile UK Government department on a contract basis. This is a unique opportunity to contribute to mission-critical digital transformation initiatives that impact millions of citizens.

You will be responsible for designing and delivering scalable, secure, and maintainable software solutions across a range of government services. Working closely with delivery teams, stakeholders, and technical leads, you’ll ensure architectural integrity and alignment with strategic goals.

Key Responsibilities

Lead the design of end-to-end software solutions across complex systems and services.

Collaborate with cross-functional teams to define architecture patterns, principles, and standards.

Ensure solutions are secure, performant, and compliant with government regulations.

Provide technical leadership and guidance throughout the software development lifecycle.

Translate business requirements into robust technical designs.

Engage with senior stakeholders to communicate architectural decisions and trade-offs.

Essential Skills & Experience

Active SC Clearance (must be currently valid).

Proven experience as a Solutions Architect in large-scale software environments.

Strong background in software engineering (e.g., Java, .NET, Python, or similar).

Deep understanding of modern architectural patterns (e.g., microservices, event-driven, API-first).

Experience with cloud platforms (AWS, Azure, or GCP).

Familiarity with DevOps practices and CI/CD pipelines.

Excellent stakeholder management and communication skills.

Desirable

Experience working within UK Government or public sector environments.

Knowledge of GDS standards and service design principles.

Exposure to Agile delivery methodologies.

Page 3 of 8

Frequently asked questions

What types of contract Backend Engineer jobs are listed on Haystack?

Haystack features a wide range of contract Backend Engineer positions, including roles in startups, mid-sized companies, and large enterprises across various industries such as fintech, healthcare, and e-commerce.

How do I apply for a contract Backend Engineer job on Haystack?

To apply, simply create a profile on Haystack, upload your resume, and submit your application directly through the job listing. Some employers may require additional screening or coding tests.

Are the contract Backend Engineer jobs remote or on-site?

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.

What skills and technologies are commonly required for contract Backend Engineer roles?

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.

Can I negotiate contract terms such as duration and rate?

Yes, many contract Backend Engineer jobs on Haystack allow for negotiation on contract length, hourly rate, and other terms. Communication with the employer or recruiter during the interview process will help clarify these details.

Terms

Feedback

Contact

Careers