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Backend Engineer Jobs
Overview
Looking for top Backend Engineer jobs? Discover the latest backend developer opportunities on Haystack, your go-to IT job board. Whether you specialize in Java, Python, Node.js, or Ruby, find the perfect backend engineering role to advance your tech career today. Start browsing backend developer jobs now!
C++ Software Engineer for Real-time Defence Systems
Standard 8 Recruitment Ltd
Ash Vale
In office
Junior - Mid
£50,000 - £55,000
RECENTLY POSTED

C++ Software Engineer

* Surrey

* £50,000 – £55,000

* Full-time | 5 days onsite

* Must be eligible to obtain SC clearance

We’re representing a technical engineering organisation building specialist software that runs in controlled, performance-critical environments.

They’re looking for a software engineer who writes solid, dependable code — and understands that engineering discipline is not optional.

This isn’t consumer app development. It’s engineered software that integrates with complex systems and has to work reliably.

The Work

You’ll contribute across the lifecycle of advanced systems - from requirements through to deployment.

Day to day:

*

Designing and implementing software for real-time or near real-time applications

*

Developing in C/C++ and/or Java

*

Working within Linux environments

*

Participating in structured code reviews

*

Writing and executing meaningful unit tests

*

Producing proper technical documentation

*

Translating operational requirements into working software

*

Supporting integration and formal acceptance activity

*

Engaging with technical stakeholders when required

Your code will not live in isolation. It will interact with hardware, networks and other subsystems.

What You’ll Need

*

Strong technical degree in engineering, computing, physics or similar

*

Minimum 2.5 years’ experience developing production software

*

C++

*

Linux exposure

*

Desirable / NON ESSENTIAL: real-time systems, networking knowledge, low-level Linux interfacing, DSP exposure or GPU acceleration.

UK nationals only. Must be eligible for SC clearance

D365 F&O Integration Developer
Source & Connect
Maidenhead
Fully remote
Mid - Senior
£500/day - £550/day
RECENTLY POSTED

D365 F&O Developer (SSRS / X++ / C#) - Contract - Outside IR35

£500-£550 per day | Remote (UK Only)

We’re looking for an experienced D365 F&O Developer with strong SSRS, X++, and C# expertise to deliver high‑quality reporting and customisation work on a large D365 programme.

Key Responsibilities

Develop and maintain SSRS reports & output documents (Invoices, POs, SOs, Packing Slips, Financial & Operational reports).
Build complex RDP classes in X++ to model, retrieve and structure data.
Extend and customise D365 F&O modules using X++ to support reporting requirements.
Create clear technical design documents from functional requirements.
Optimise report performance, queries, and rendering speed.
Integrate data using DMF and OData services.
Troubleshoot and resolve issues with existing SSRS reports and data inconsistencies.
Manage code and version control via Azure DevOps (Git/TFVC).

Required Skills

Advanced proficiency in X++, T‑SQL, and C#.
Strong, proven experience with SSRS in a D365 F&O environment.
Excellent understanding of AOT, Data Entities, and the extension framework.
Skilled with Visual Studio, Azure DevOps (CI/CD), LCS, and ideally Power BI.
Hands‑on experience using DMF for data import/export

Oracle DBA with AWS Postgres Migration - Manchester, UK
Randstad Technologies Recruitment
Manchester
In office
Senior
£600/day - £700/day
RECENTLY POSTED

Role: Oracle DBA with AWS Migration Experience
Type: Contract (6 Months)
Location: Manchester, UK
Working Model: Fully Onsite

Payrate: (Apply online only) GBP/day on Inside IR35 on Umbrella

We are urgently seeking a highly experienced Oracle DBA for a 6-month engagement with. In this standalone, mission-critical role, you will be the ultimate technical authority for a high-availability database estate.

The Role:

Act as the go-to technical expert for Oracle Database 12c, taking full ownership of stability, security, and performance.
Diagnose and resolve complex performance issues on high-volume transactional workloads (using AWR/ASH, SQL tuning, and execution plan reviews).
Design, test, and manage robust RMAN backup and recovery strategies.
Partner with Dev and QA teams to advise on schema design, query patterns, and operational impact.Your Experience:

Active SC Clearance or SC Eligibility (preferred)
Extensive hands-on experience as a DBA in high-availability Oracle 12c environments.
AWS postgres Migration experience
Deep technical expertise in RMAN, AWR/ASH, and SQL optimization.This is an urgent vacancy with a deadline where the hiring manager is shortlisting for an interview immediately. Please apply with a copy of your CV or send it praveen. sukkala2 @ randstaddigital. Com

Randstad Technologies is acting as an Employment Business in relation to this vacancy

SharePoint Developer / C# Developer
MS Talent Ltd
Multiple locations
Fully remote
Mid
£400/day - £425/day
RECENTLY POSTED

SharePoint / C# Developer (SharePoint Developer, C# Developer, Azure Developer) – £425 per day – AI Integration project

* Location no issue - work from home / Remote Role \

A SharePoint / C# Developer (SharePoint Developer, C# Developer, Azure Developer) is required for a 6-month contract (Inside IR35) paying £400–£425 per day. UK-wide location flexibility. You will join an Agile team delivering AI-driven backend enhancements across SharePoint and Azure.

To be considered for this SharePoint Developer / C# Developer role, you must have:

Strong C# / .NET backend development
Experience with React
Experience with Azure technologies (Azure AI / Azure Foundry desirable)
Experience integrating with MCP servers, REST APIs and Microsoft Graph API
Strong SharePoint development knowledge (architecture, APIs, structure)
Modern authentication experience (OAuth, Entra ID)
Comfortable working in Agile, sprint-based teams.Plus at least one of the following:

SPFx Web Part development
SharePoint deployments using PowerShell
SharePoint template definitionsThe Role
As a SharePoint Developer / C# Developer, you will:

Build and enhance AI-driven backend features in C#/.NET
Integrate SharePoint, Azure and AI services
Contribute to technical and AI architecture discussions
Deliver features end-to-end within 2-week sprintsWhy Apply?

£400–£425 per day (Inside IR35)
Immediate impact project
Strong focus on Azure AI and SharePoint integration
Agile, collaborative environment
UK-wide flexibilityThis is a strong contract opportunity for a SharePoint Developer, C# Developer, or Azure Developer with solid backend expertise and AI exposure.
Apply now – interviews taking place immediately

Power Apps Developer
Henderson Drake
Woodbridge
In office
Mid - Senior
£40,000 - £45,000
RECENTLY POSTED

Ipswich, Suffolk | Full-Time | Permanent

HD Tech is partnering with a leading UK manufacturer within the construction sector to recruit an experienced Power Apps Developer.

This is a key role within a growing Digital Team, responsible for designing, developing and enhancing Power Apps-led reporting and data solutions that support operational performance across the business.

You’ll take ownership of Power Platform solutions from design through deployment and continuous improvement, working closely with stakeholders to translate business requirements into scalable, secure, and user-friendly applications.

Key Skills Required:

*

5–10 years’ Power Platform experience

*

Power Apps (Canvas & Model-driven)

*

Power Automate & Dataverse

*

Power BI data modelling & reporting

*

Working knowledge of C#, HTML5, CSS

*

Experience with SQL-based systems

This role offers genuine ownership, career progression, and the opportunity to shape digital strategy within a forward-thinking organisation

Software Developer
Erin Associates
Birmingham
Hybrid
Mid - Senior
£50,000 - £55,000
RECENTLY POSTED

Software Developer (API Development / Backend – Node.js, C#, Fullstack) Birmingham, West Midlands (Hybrid – 1 day onsite a week) 55k + Benefits We’re partnering with a leading enterprise software house in Birmingham that is expanding its engineering team. They’re looking for a Software Engineer with strong API and backend development experience to work on complex, high-performing systems used by global clients. This Developer role offers the opportunity to build and enhance large-scale, data-driven applications with a focus on reliability, scalability, and performance. As a Software Engineer, you’ll take ownership of backend services and integrations, designing and developing robust APIs that power enterprise software products. You’ll work primarily with Node.js and C#, collaborating with cross-functional teams to deliver well-architected, maintainable solutions. Key Responsibilities Design, build, and maintain RESTful APIs and backend systems. Develop high-quality, scalable code using Node.js and C#. Collaborate with product and engineering teams to define technical solutions. Ensure best practices in testing, deployment, and CI/CD. Optimise performance, security, and maintainability of backend services. Support occasional front-end integration using React (desirable, not essential). Skills & Experience 4+ years’ commercial experience in backend/API development. Strong expertise in Node.js and C#. Solid understanding of REST API design and implementation. Experience with cloud computing and CI/CD pipelines. Knowledge of automated testing tools Familiarity with React or modern JavaScript frameworks (advantageous). Excellent problem-solving, collaboration, and communication skills. Join a forward-thinking Software engineering team based in Birmingham, focused on quality and innovation, where you will work on high-impact enterprise software projects. Keywords: Software Developer, Backend Developer, API development, Rest Api, Node.js, C#.React, Fullstack, Birmingham, West Midlands To apply, please send your CV to Bethany at (url removed) or call (phone number removed) for more details. Follow us on Twitter: @erinassociates Erin Associates Ltd is acting as an Employment Agency in relation to this vacancy

Power Platform Developer
Reality Solutions Ltd
UK
Hybrid
Junior - Mid
£26,660 - £32,000
RECENTLY POSTED

Job Title: Power Platform Developer

Location: Hull, UK (Hybrid / Office)

Salary: £26,660 - £32,000 per annum

Job type: Full-time, Permanent

Reality Solutions is a leading regional IT Solutions Provider and Sage Accredited Business Partner based in Hull. We are looking for a Power Platform Developer (Junior to Mid-Level) to join our team and support the delivery of business-critical applications built on Microsoft Power Platform.

About the role

You will work on both new and existing projects, including model-driven and canvas applications, integrations with Dataverse, and reporting solutions. This role is suitable for someone with solid foundational experience who is ready to take ownership of features and grow into greater responsibility.

Key Responsibilities:

Design and develop Canvas and Model-Driven Power Apps
Build and maintain solutions using Dataverse
Develop and optimise Power Automate flows
Support solution architecture and core framework implementation
Create and maintain reporting forms and data capture processes
Contribute to UX improvements, particularly for mobile users
Participate in testing, debugging, and performance optimisation
Document solutions and support handover where required
Work closely with project leads and stakeholders to refine requirementsAbout you

We are looking for a candidate with a strong problem-solving mindset and clean, maintainable development practices. You should have a willingness to take ownership of workstreams, clear communication skills, and the ability to work in a fast-paced project environment.

Required Skills & Experience:

1-4 years’ experience working with Microsoft Power Platform
Practical experience building Canvas Apps
Experience with Model-Driven Apps
Good understanding of Dataverse data modelling
Experience building Power Automate workflows
Familiarity with security roles and environment management
Understanding of solution deployment and ALM concepts
Comfortable working independently on defined tasksDesirable Skills:

Experience with embedded Canvas apps within Model-Driven apps
Power Platform admin experience
Integration experience (REST APIs, Azure Functions, SharePoint, etc.)
Experience building reports (Power BI or in-app reporting)
Exposure to Power Apps Component Framework (PCF)
Experience supporting mobile-first applications
Programming experience in VB/C# .NET & JavaScriptWhat we offer

Varied work across multiple business systems
Opportunity to modernise legacy applications
Exposure to full development lifecycle
Supportive team environment with room to grow
Healthy balanced work-life environmentPlease click the APPLY button to send your CV and covering letter for this role.

Candidates with the relevant experience and job titles of; . Power Platform Developer, Power Apps Developer, Microsoft 365 Developer, Dynamics 365 Specialist, Low Code Developer, Power Automate Consultant, and Dataverse Specialist may be suitable for this role

Senior Salesforce Developer
Langham Recruitment
Multiple locations
Remote or hybrid
Senior
£55,000 - £70,000
RECENTLY POSTED

Senior Salesforce Developer | FTSE 100 Client | UK Based - Remote working | £55,000 - £70,000 + circa 10% bonus + 5K car allowance

We’re on the lookout for an experienced Salesforce Developer to join a greenfield Salesforce implementation project for a major UK FTSE 100 business.
This is an opportunity to design, build, and maintain complex automations in Salesforce, and integrations between Salesforce and other systems.

Key Responsibilities

Design and build Salesforce integrations and complex automations (flows, Apex, LWC).
Designing product enhancements and building new functionality
Maintain and enhance existing integrations with internal and third-party systems.
Support transition to integration platforms (e.g., MuleSoft).
Ensure secure development and adherence to coding standards.
Create technical documentation and manage CI/CD processes.
Collaborate with architects, admins, BAs, and vendor teams to deliver scalable solutions.Required Skills & Qualifications

Experienced Salesforce Developer.
Proficient in Apex, LWC, API integrations, Platform Events, and Salesforce configuration.
Previous Greenfield or Salesforce Integration projects would be a plus
Strong knowledge of Salesforce data model and event-driven integrations.
Experience with MuleSoft and integration best practices.
Familiarity with Agile delivery and tools (Jira, CI/CD).
Web development skills (HTML, CSS, JavaScript).
Excellent communication and stakeholder management.
Ability to mentor junior team members.Preferred Certifications

Salesforce App Builder or Administrator.
Salesforce Platform Developer I & II.
Salesforce Integration Architect or System ArchitectPackage:

Up to £70,000 + circa 10% Bonus + £4900 Car Allowance (approx. £80k total package)
25 days holiday (rising with service)
Private healthcare, life assurance, and pension
Mostly remote working with occasional office visits for sessions (very rare)

Custom Wordpress Developer – Nottingham (Hybrid Remote) - £40-45,000
Ada Meher
Nottingham
Remote or hybrid
Mid
£40,000 - £45,000
RECENTLY POSTED

Wordpress/Vue/React/Laravel | TDD | Target-based Progression | Fully Bespoke Builds

Ada Meher is currently working with a leading agency, with offices in Central Nottingham, who are recruiting for a Custom Wordpress Developer to work on some of their bespoke web builds. They have a variety of projects, with plug-ins & themes built fully bespoke for each of their enviable clients. As such they are able to use the best tools for each project, so you’ll find some variety in the tech stack from project to project. However, you can expect the majority of the work to be rooted PHP & Custom Wordpress Plug-ins with some Laravel too on the backend & with JavaScript/Typescript using Vue.js or React.js and the Tailwind framework, where appropriate, as well as Nuxt.js or Next.js and animation libraries such as GSap on the frontend. The only requirement for the role is strong Custom Wordpress experience, so there is a good learning opportunity in the modern JS frameworks and Laravel for the right candidate.

With an office hub in the centre of Nottingham, they value the sense of collaboration in this space as well as their employee’s autonomy and as such operate a hybrid model. The client has flexibility and autonomy at the core of their culture, so whilst there is an expectation of an office-based presence 3dpw they are more than happy to work this around other life commitments to find a solution which suits all.

The client also prioritise the development of their staff, with every employee having a personal development plan, tailored to them, with financial incentives based around reviews and milestones. There is also budget and resources available to support this development.

The ideal candidate will have a thorough understanding of software development principles which allow you to pick up and apply new tools and technologies quickly. The successful candidate will be given time and support to fill in any gaps in knowledge around the tech stack, provided they can demonstrate this good core development knowledge.

To be considered:

· 2+ years’ commercial experience in PHP & Custom Wordpress plug-ins themes
· Experience with relevant tech such as ACF
· Experience with relevant frontend frameworks/libraries would be a benefit
· Experience working with API integrations
· Agency experience would be a bonus not but not required

The company in question is a market leader not only in the solutions that they provide to their clients internationally but also the technology the work on and the environment they create. They aspire to create a relaxed environment where people can work on forward thinking technology solutions.

This Custom Wordpress Developer role is attracting a high number of applicants at the moment so be sure to get in contact ASAP to avoid missing out. Please send a CV in confidence for more information

Software Engineer
MASS
Chippenham
In office
Junior - Mid
£35,000 - £50,000
RECENTLY POSTED

Software Engineer – On-site, Corsham (SN13)

* £35,000 - £50,000

* 25 days annual leave (in addition to Bank Holidays)

* Buy or sell up to 5 days annual leave

* Continuous Professional development support

* Two pension schemes to choose from

* Life Assurance scheme up to 4 x salary

* Private Medical & Dental Insurance + discounts for additional family members

* Other benefits such as Health & Wellbeing Allowance, Electric/Hybrid Car leasing scheme, Cycle to work scheme and more.

This is an opportunity to make an impact within a dedicated team that takes great pride in delivering solutions in a role of critical importance, working embedded on a client site. As a software engineer you can expect to be involved in supporting ongoing maintenance and enhancement of mission-critical simulation software, working in both Windows and Red Hat Linux environments.

The role requires contributing to a rigorous development and test cycle that maintains high customer confidence in both the software and the team maintaining it.

The successful candidate will be a confident C++/C# practitioner, ideally with an education background in STEM, with the ability to work effectively in a dynamic environment whilst liaising regularly with the customers. The role is based in-office in Wiltshire but may involve occasional travel both within and outside of UK.

Duties / Responsibilities:

* Ability to comprehend requirement / document changes to analyse a scope of change required for a work item.

* Design, development and maintenance of an existing code solution.

* Testing and reviewing software applications and supporting documentation.

* Contributing to meetings and work groups, providing domain knowledge and expertise on technical matters.

* Collaborating within a team environment, and communicating effectively.

* Suggesting improvements for continuous improvements.

Essentials

* You demonstrate the qualities of an engineer and enjoy the challenge of building complex or efficient software solutions.

* You want to apply your natural ingenuity to solve challenging engineering problems

* You’re keen to learn new technologies and languages

* You have a good understanding of computing fundamentals (e.g. logic, data structures) along with strong software design skills, including Object-Oriented Programming, and knowledge of version control systems such as Git/SVN

* 2+ years’ experience in C# development, or another language

* Knowledge of Visual Studio & MS Office Products

* Must be eligible to work and live in the UK

* Must be eligible to undergo and maintain appropriate UK government Developed Vetting security clearance

Desirables

* Knowledge of the Red Hat Linux or other Unix based operating system

* Competency in multiple programming languages

* Understanding of Object-Oriented Design, and implementation of engineering algorithms

* Knowledge of UML

* Understanding of Requirements & Configuration management

* Experience of working in an Agile environment

Who is MASS

MASS is an independent, global technology company, trusted by highly secure organisations to provide advanced, digital services that manage data and keep information safe. With our heritage in defence, we offer robust solutions to sectors where security expertise is essential.

Wellbeing is at the core to our culture, allowing employees to flourish and to achieve their full potential. Our people are important to us, and we take pride in our wellbeing programmes and policies that support individuals including, mental health first aiders and readily available support through our extensive employee assistance programme.

We work in partnership with customers, using skilled, technical experts. We think innovatively to provide tailored, agile and resilient solutions that secure advantage, so you’re ready for digital transformation. MASS is an equal opportunities employer; we know that our people are smart, skilled and motivated and in return we provide a friendly workplace where everyone is valued and has the chance to make an impact.

Apply today to see how working for MASS could work for you

Python Software Engineer
ECM Selection Limited
Cambridge
In office
Mid - Senior
Private salary
RECENTLY POSTED

Turning proof of concept algorithms into production Python software

Cambridge; to £highly competitive + benefits

This collaborative, innovative company produce sustainable electronics and software enhancing worldwide connectivity. They are seeking an engineer skilled in translating algorithmic proofs of concept into robust Python production software.

You’ll have:

* A strong academic background or equivalent commercial experience

* Strong Python skills, including creating modular, reusable, reliable, well factored and unit tested code

* A track record refining somewhat complex algorithms (perhaps in signal processing) into well-structured and optimal Python implementations

* Familiarity with modern development processes, source control and collaboration

* Good communication and team working skills along with strong skills as an independent, individual contributor in Python

Any additional experience of the EM (ideally RF) domain, communications protocols including telecoms, real-time code and datastreams, and working with test equipment and prototype devices is welcome.

This office-based role offers a highly competitive salary depending on experience, and aligns with strong senior engineer salaries in the Cambridge area. Full existing UK work permission without time limit or sponsorship is a prerequisite.

Keywords: Python, algorithms, implementation, production, software engineering, modularity, RF, communications, Cambridge

Another top job from ECM, the high-tech recruitment experts.

Even if this job’s not quite right, do contact us now - we may well have the ideal job for you. To discuss your requirements call ecm or email your CV. We will always ask before forwarding your CV.

Please apply (quoting ref: CV27589) only if you are eligible to live and work in the UK. By submitting your details you certify that the information you provide is accurate

Tech Lead
Tech Mahindra
UK
In office
Senior
£60,000 - £70,000
RECENTLY POSTED
+11

JD:- Experience : 10+ years

* Strong telecom domain and VoIP experience

* Prepare Requirements gathering, Architecture, Software design, estimate and lead development team project releases

* Participate in requirements, architecture, design and test cases review

* Use the Spring Boot framework to design and implement microservices that interact with databases.

* Work with other developers, designers, product owners, and QA to design, develop, and implement software solutions.

* Write clean, efficient, and well-documented code that meets industry standards and best practices.

* Troubleshoot and debug issues in existing applications and provide timely resolutions.

* Stay up-to-date with emerging trends and technologies in software development.

* Be a great communicator because you will spend a lot of time communicating and cooperating with your team’s other developers.

* Perform unit and system testing.

* Must have: Proficient in spring boot & Java 8 advanced features

* Must have: hands-on MongoDB or any noSQL DB,

* RabbitMQ, Kafka, VerneMQ

* Hazelcast, Eureka, Grafana, Prometheus, Minio

* JVM troubleshooting

* Docker, Kubernetes

* RHEL, OpenShift

* Exposure to IoT or Telecom or WiFi domain is plus

* Java: JEE – Jain SLEE,JSR 289, JSR 309, EJB, Servlets, JMS, JMX, JDBC and XML

* VoIP: SIP/SIPS, RTP//RTCP/SRTP

* PSTN : SS7/Sigtran, ISDN, SBC

* Web Services - WS*

* HTTP and HTTPS

* Redundancy and Availability

* OS – Linux

* Scripts : PERL, Python and unix shell

* Application Server : OCCAS or Web Logic

Azure Cloud Engineer
Syntax Consultancy Ltd
London
Hybrid
Mid - Senior
£550/day - £600/day
RECENTLY POSTED
+4

Azure Cloud Engineer (SC Cleared)

London (Hybrid)

6 Month Contract

to £550/day-£600/day (Inside IR35)

Azure Cloud Infrastructure Engineer needed with active SC Security Clearance, AZURE Terraform code.

6 Month Contract based in Central London (Hybrid). Start ASAP in March 2026.

Hybrid Working - 2 days/week remote (WFH), and 3 days/week working on-site from the London office.

A chance to work with a leading global IT and Digital transformation business specialising in Government projects:

Experienced Azure Cloud Engineer required to support cloud transformation programme.

Must have in-depth experienced in AZURE Terraform code, GitHub Actions, implementation of both CI/CD. Hands-on experience in Software Development. Experience implementing or maintaining a CI/CD pipeline using Github Actions, Terraform, and Azure.

Good working knowledge of PowerShell, SQL of the installation and configuration of Windows based systems.

Provide automated testing as you develop and Strong written and verbal communication skills.

Experience of Agile methods, Azure DevOps, CI/CD pipeline maintenance + automation scripting, also strongly preferred.

Ability to plan, schedule and manage a demanding workload. Experienced in mentoring and training junior engineers.

Desirable: Experience implementing or maintaining a CI/CD pipeline using Github Actions, Terraform, and Azure.

Azure Monitoring. Software development experience using C# and SQL Server. Packer, Kubernetes, AKS, Flux or Helm

Banking / Financial Services domain experience preferred.

Must hold active SC Security Clearance used on a project within the past 12 Months

Software Developer
Erin Associates
Birmingham
Hybrid
Mid - Senior
£55,000
RECENTLY POSTED

SoftwareDeveloper(API Development / Backend Node.js, C#, Fullstack)
Birmingham, West Midlands (Hybrid 1 day onsite a week)
55k + Benefits

Were partnering with a leading enterprise software house in Birmingham that is expanding its engineering team. Theyre looking for aSoftware Engineerwith strongAPIand backend development experience to work on complex, high-performing systems used by global clients.

This Developer role offers the opportunity to build and enhance large-scale, data-driven applications with a focus on reliability, scalability, and performance.

As a Software Engineer, youll take ownership of backend services and integrations, designing and developing robust APIs that power enterprise software products. Youll work primarily withNode.js and C#,collaborating with cross-functional teams to deliver well-architected, maintainable solutions.

Key Responsibilities

  • Design, build, and maintain RESTful APIs and backend systems.
  • Develop high-quality, scalable code using Node.js and C#.
  • Collaborate with product and engineering teams to define technical solutions.
  • Ensure best practices in testing, deployment, and CI/CD.
  • Optimise performance, security, and maintainability of backend services.
  • Support occasional front-end integration using React (desirable, not essential).

Skills & Experience

  • 4+ years commercial experience in backend/API development.
  • Strong expertise in Node.js and C#.
  • Solid understanding of REST API design and implementation.
  • Experience with cloud computing and CI/CD pipelines.
  • Knowledge of automated testing tools
  • Familiarity with React or modern JavaScript frameworks (advantageous).
  • Excellent problem-solving, collaboration, and communication skills.

Join a forward-thinking Software engineering team based in Birmingham, focused on quality and innovation, where you will work on high-impact enterprise software projects.
Keywords: Software Developer, Backend Developer, API development, Rest Api, Node.js, C#.React, Fullstack, Birmingham, West Midlands

To apply, please send your CV to Bethany at
or call 0161 438 1177 for more details.

Follow us on Twitter: @erinassociates
Erin Associates Ltd is acting as an Employment Agency in relation to this vacancy.

Software Engineer PHP
Accelero
Bridgend
Hybrid
Graduate - Junior
£35,000
RECENTLY POSTED

Software Engineer

Bridgend - (hybrid working once fully trained in role)

£33,000 - £38,000

Were partnering with a manufacturing organisation seeking a Software Engineer to join their Engineering team.

This is an exciting opportunity to work at the intersection of manufacturing technology, IT systems, and data, supporting advanced production environments through innovative software solutions.

The Role

Youll play a key role in developing and supporting manufacturing IT systems, driving improvements in data management, system performance, and production technology integration.

Working within a collaborative engineering environment, you will:

  • Maintain and enhance critical manufacturing IT systems
  • Take ownership of production-level applications (deployment, monitoring & support)
  • Design, develop and integrate new software solutions for manufacturing operations
  • Build tools for data collection, analysis, visualisation and communication
  • Collaborate cross-functionally with engineering and production teams
  • Identify opportunities to introduce innovative technologies into live environments

What Were Looking For

Essential:

  • Degree in Engineering, Computer Science, or related discipline
  • Experience with PHP, ReactJS, JavaScript, HTML/CSS
  • Strong communication skills and ability to work cross-functionally
  • Self-starter who can manage priorities and deliver high-quality solutions
  • Creative problem-solver with a passion for continuous learning

Desirable:

  • GitLab/GitHub experience
  • Experience with JSON document databases (e.g. MongoDB, Couchbase)
  • Comfortable supporting operational systems in a fast-paced environment

If you’re passionate about applying software engineering in a real-world production environment, wed love to hear from you.

Senior Software Engineer
ByteHire
London
Remote or hybrid
Senior
Private salary
RECENTLY POSTED

Reference: BH-377p Working Hours: Full-time Job Type: Permanent Salary: Competitive Location: Remote or Hybrid - London office About The Client: Our client is a rapidly growing Infrastructure-as-a-Service (IaaS) provider driving digital transformation. Key Responsibilities: Architecture & System Design Design and evolve scalable backend services and product components. Make sound architectural decisions across APIs, services, and data layers. Lead delivery from design through production operation. Full-Stack Development Build backend systems primarily in Python. Develop secure, performant APIs supporting AI workflows. Contribute to modern web applications where required (e.g., Next.js). Reliability & Performance Improve monitoring, observability, and system resilience. Optimise performance and support production stability. Engineering Leadership Maintain high coding standards and test coverage. Contribute to code reviews and documentation. Mentor engineers and support technical growth. Collaboration Work closely with Product and Design to deliver scalable solutions. Communicate technical trade-offs and manage cross-team dependencies. Essential skills and requirements: Strong experience building production backend systems and APIs in Python (Flask or similar). Proven ownership of asynchronous or compute-intensive workflows. Experience delivering full-stack features (e.g., Next.js). Practical understanding of AI lifecycle workflows (training, evaluation, deployment, inference). Solid system design knowledge including API design, SQL/NoSQL data systems, and security. Experience managing systems in production (monitoring, debugging, incident response). Familiarity with Git, CI/CD, Docker, and Kubernetes. Desirable Skills: Exposure to LLMs or generative AI platforms. Experience with model lifecycle management or AI observability. Understanding of GPU-based or distributed systems. Experience building developer platforms or workflow orchestration tools. Whats on Offer: Competitive salary + bonus Flexible remote or hybrid working Wellbeing benefits Clear progression in a high-growth environment Strong ownership and collaborative culture TPBN1\_UKTJ

Contract Data Engineer
MCS Group
Belfast
In office
Mid - Senior
£106,600/day - £106,600/day

MCS Group is working with an AI enabled software house who is seeking an experienced Contract Data Engineer to support a key automation initiative. This role will focus on building scalable automation across their data platform while supporting migration and modernisation of existing data infrastructure. This is an excellent contract/project for someone who has previously worked on data migration, cloud transformation, or platform modernisation projects, and enjoys building robust, automated data solutions in a cloud-first environment. The Role Design, build, and maintain scalable data pipelines and automation for data ingestion, transformation, and delivery. Develop and optimise SQL-based data models across large relational databases. Build and manage AWS-based data infrastructure using services such as Redshift, Glue, Lambda, S3, and Athena. Implement and maintain ETL/ELT pipelines to integrate data from multiple systems. Support data platform migration and modernisation initiatives. Ensure high standards of data quality, performance optimisation, and governance. Contribute to DevOps and automation practices, including infrastructure-as-code and CI/CD where appropriate. The Person Extensive proven experience as a Data Engineer is essential. Strong hands-on expertise with large relational databases and advanced SQL optimisation. Experience working with AWS data services is essential (including Redshift, Glue, Lambda, S3, and Athena.) Strong experience building ETL/ELT pipelines and data integration workflows. Experience with Python, Spark, or other data processing technologies. Familiarity with Terraform, CI/CD pipelines, and infrastructure-as-code practices. IR35: Outside Duration: 6 months Rate: £410 per day Location: Belfast or London - Please note, in-office working is required in either location. To speak in absolute confidence about this opportunity please send an up-to-date CV via the link provided or contact Jill Johnston, Head of IT Contracts, at MCS Group Even if this position is not right for you, we may have others that are. Please visit MCS Group to view a wide selection of our current jobs MCS Group is committed to Equality, Diversity, and Inclusion for all, being the first recruitment agency in NI to achieve Bronze Diversity Mark accreditation, if you have a disability which means you require a reasonable adjustment to be considered at any stage of the recruitment process, please contact us and we will endeavour to facilitate the request. Not all agencies are the same MCS Group are passionate about providing a first-class service to all our customers and have an independent review rating of 4.9 stars on Google. Skills: data engineer AWS SQL Database developer automation

C# Software Developer Leicester /Hybrid
Akkodis
Leicester
Hybrid
Mid
£40,000 - £50,000

Role Overview:

You will play a key role in transforming my clients internal applications using modern Microsoft tools. You’ll work on both new and existing systems, helping to shape our current and future software and data landscape. This role offers great opportunities for personal development.

Responsibilities:

  • Develop and Maintain Applications: Build and maintain business applications based on company needs.
  • Software Development: Contribute to all stages of the software development lifecycle.
  • Team Collaboration: Work closely with testers, designers, and project managers to ensure quality work.
  • Process Improvement: Identify areas for improvement in business processes and suggest solutions.
  • Legacy System Modernisation: Upgrade older applications using modern tools like Power Apps, MS Dynamics, and Azure SQL.
  • Documentation: Create clear and detailed technical and functional documents.
  • Bug Fixing: Identify and resolve bugs in a timely manner.

Core Skills:

  • Clear, honest, and respectful communication.
  • Open-minded and adaptable to change.
  • Self-motivated, results-driven, and accountable.
  • A team player who actively collaborates with others.
  • Able to build relationships quickly with stakeholders.
  • Strong planning and prioritization skills.
  • Considerate of how your decisions affect others.

Technical Skills:

  • Ability to debug and interpret legacy code in Visual Studio.Net, C#, WPF, ASP.Net, REST, SSIS, TSQL, and SPROCs.
  • Experience in migrating legacy systems to modern platforms like Power Apps and Azure SQL.
  • Familiarity with API integrations and Data Lakehouse/Warehouse ELT processes.
  • Strong documentation skills.

This is a hybrid role based in Leicester city centre and my client is paying up to 50,000 for the right candidate. Benefits are excellent on this one, with a bonus and pension contributions both at 10 percent! 30 days annual leave, perk box, city centre location as well a hybrid working

Apply today for immediate consideration.

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.

Full Stack Developer (.NET Core / Angular)
Hays Technology
London
Hybrid
Mid - Senior
£50,000 - £70,000

Full Stack Developer - Asset Management Firm - London / Manchester (Hybrid) - Basic salary of up to 65,000 + Bonus and Additional Benefits package

Hays are currently working exclusively with a leading asset management firm assisting them in the recruitment of a Full Stack Developer on a permanent, full-time basis. This role will require candidates to work in a hybrid capacity, 3 days per week in office, in either Central London or Manchester. This is a great opportunity for an enthusiastic and skilled developer to join an established development team within a high-end financial services firm.

The role

We’re looking for an experienced and enthusiastic full-stack developer to join the team on a permanent basis. This person will join a 5-person development team and will be responsible for collaborating with various cross-functional teams to translate business requirements into scalable and efficient software solutions that help drive the business to new heights. You will also be responsible for improving performance in the business’ cloud hosted environment, while also acting as an SME on all architectural and tech stack improvements.

The CEO and CFO of this business are passionate advocates of Artificial Intelligence, with a significant budget recently allocated to this area, in the hope of using AI to drive commercial performance. This would an excellent opportunity for a skilled developer with a curiosity and passion for AI technologies to develop these skills in a professional technology environment

Skill set requirements:

  • Professional experience in a software development role, specifically .NET Core, SQL Server, and Cloud Native Technologies and Services (Azure)
  • Strong Front End Development and UI Expertise (Angular)
  • Experience in translating complex requirements into simple, effective technology solutions for senior stakeholders.
  • A curiosity and passion for AI technologies and their use within a professional technology environment
  • Experience within Financial Services, specifically asset management / AML / Financial Crime (Beneficial)
  • Detail focussed with a First Class University Degree in STEM subject (Beneficial)

What you’ll get in return:

  • Starting salary of up to 65,000
  • Up to 12% pension (6% cont. / 6% match)
  • 25 days annual leave + Bank holidays
  • Hybrid working option (3 days / 2 days)
  • Annual bonus of between 10% and 25%, depending on personal and company performance.

Desired Skills and Experience Software, Developer, Asset Management, AML, C#, .NET, .NET Core, angular, UI, Front End, Azure, SQL Server, Financial Services, Lead Developer, Senior Developer, AI, Artificial Intelligence,

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)

Senior Software Developer
Tec Partners
Bury Saint Edmunds
Hybrid
Senior
£45,000 - £55,000

Role: Senior Systems Developer (Python / PostgreSQL) Location: Bury St Edmunds (Hybrid) Salary: Up to £55k DOE A leading UK infrastructure and utilities organisation is looking to hire a Senior Systems Developer to join their growing technology team. This is a fantastic opportunity to play a key role in designing and delivering modern software solutions within a business focused on innovation, sustainability and long-term growth. In this role, you will be responsible for designing, developing and supporting full-stack applications, helping to enhance an established suite of internal systems and integrations. Working closely with product owners, stakeholders and cross-functional teams, you will ensure solutions are robust, scalable and aligned with business needs. You will contribute to software architecture, coding standards and development best practices, while also supporting release management, CI/CD pipelines and continuous improvement across the development lifecycle. As a senior member of the team, you will also help mentor colleagues and share technical knowledge to support wider team success. Key skills include: Strong Python development experience Solid knowledge of SQL / PostgreSQL Experience with JavaScript, HTML, CSS and modern front-end frameworks Familiarity with Git, CI/CD pipelines (Azure DevOps/Jenkins) Experience working in Agile delivery environmentsWhat's on offer: Competitive salary, strong pension, generous holiday allowance and hybrid working, alongside excellent career development opportunities. If you're interested please reach out to Fintan at TEC Partners

C# Software Developer Leicester /Hybrid
Akkodis
Leicester
Hybrid
Mid - Senior
£40,000 - £50,000

C# Software Developer Leicester /Hybrid Role Overview: You will play a key role in transforming my clients internal applications using modern Microsoft tools. You'll work on both new and existing systems, helping to shape our current and future software and data landscape. This role offers great opportunities for personal development. Responsibilities: Develop and Maintain Applications: Build and maintain business applications based on company needs. Software Development: Contribute to all stages of the software development lifecycle. Team Collaboration: Work closely with testers, designers, and project managers to ensure quality work. Process Improvement: Identify areas for improvement in business processes and suggest solutions. Legacy System Modernisation: Upgrade older applications using modern tools like Power Apps, MS Dynamics, and Azure SQL. Documentation: Create clear and detailed technical and functional documents. Bug Fixing: Identify and resolve bugs in a timely manner.Core Skills: Clear, honest, and respectful communication. Open-minded and adaptable to change. Self-motivated, results-driven, and accountable. A team player who actively collaborates with others. Able to build relationships quickly with stakeholders. Strong planning and prioritization skills. Considerate of how your decisions affect others.Technical Skills: Ability to debug and interpret legacy code in Visual Studio.Net, C#, WPF, ASP.Net, REST, SSIS, TSQL, and SPROCs. Experience in migrating legacy systems to modern platforms like Power Apps and Azure SQL. Familiarity with API integrations and Data Lakehouse/Warehouse ELT processes. Strong documentation skills. This is a hybrid role based in Leicester city centre and my client is paying up to £50,000 for the right candidate. Benefits are excellent on this one, with a bonus and pension contributions both at 10 percent! 30 days annual leave, perk box, city centre location as well a hybrid working Apply today for immediate consideration. 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

Frequently asked questions
Haystack features a wide range of Backend Engineer positions, including roles in startups, mid-sized companies, and large enterprises, covering various industries such as finance, healthcare, e-commerce, and more.
Common programming languages for Backend Engineer roles on Haystack include Java, Python, Ruby, Go, Node.js, and C#. Job postings typically specify the preferred languages and frameworks.
Yes, Haystack allows you to filter Backend Engineer job listings based on remote, hybrid, or on-site work options to help you find roles that match your work location preferences.
Absolutely. Haystack includes Backend Engineer job listings for various experience levels, including entry-level, mid-level, and senior positions, making it easier for candidates at all stages to find suitable roles.
To apply for Backend Engineer jobs, simply create an account on Haystack, upload your resume, and submit applications directly through the platform. Some listings may also redirect you to the employer's application portal.