Back End Developer
£500 - £575 per dayArrows
I'm working with a rapidly scaling and fast moving gambling / betting company who need multiple .NET contractors with real pedigree to help power their expansion into new markets.
You'll be working on high-throughput backend systems - SignalR, real-time odds feeds, KYC and casino aggregator integrations - building out infrastructure that can be spun up in new jurisdictions with minimal effort. There's also an internal admin tool that needs deploying to new entity and, depending on your full-stack chops, potentially rebuilding from scratch.
Tech stack (required for these roles)
- Currently on .NET 9, heading to .NET 11
- Leveraging AI and automations in your day to day workflows
- SignalR
- Hosted in their Azure cloud
Wider stack (not important for these roles)
- Typescript stuff on Frontend
- Their mobile apps are all fully React Native
Gambling or fintech background is a strong plus. Proactive, self-directed contractors only - there's no one here to hand out tickets.
£500-£575/day | 6 months | Fully remote | Outside IR35
#J-18808-Ljbffr- We are looking for a Back End Developer to support digital design workflows in Libertyville, Illinois. This position focuses on building custom software solutions and automation tools that improve how teams work with Autodesk platforms and related applications. The ideal...Suggested
- Key Responsibilities Design, develop, and maintain scalable full stack web applications using Ruby on Rails and modern frontend technologiesBuild responsive and high-performance user interfaces using VueJS, ReactJS, TypeScript, BlueprintJS, TailwindCSS, and/or BootstrapDevelop...SuggestedFull timeMonday to Friday
- Job Title Location: 100% remote Client: Capital One Contract Length: 7 months but will extend Screening: Must complete GLIDER within 48hrs of submission, if they are not willing/able to, please do not submit. Tech Stack: backend python, AWS, aurora postgress...SuggestedHourly payContract workRemote work
- ...Back End Developer Responsibilities: Design, develop and deploy backend services that scale, are highly available, and are easy to extend Build and operate infrastructure, user tooling, and deployment pipelines. As a team, we mostly build tools that deploy...Suggested
- ...To support innovative backend development, the full-time Back End Developer will create scalable applications, build RESTful APIs, and integrate Generative AI technologies while collaborating within Agile teams. Key responsibilities Develop scalable backend applications...SuggestedFull timeRemote work
- ...Gen AI Backend DeveloperWe are seeking a Backend Developer with strong experience in Generative AI technologies to join our engineering team in San Jose, CA. The ideal candidate will have hands-on experience in Python, prompt engineering, and AI agentic workflows, and...
- ...incredible excitement about us and the work we’re doing. We’re backed by some amazing investors including Y Combinator who believe in... ...Thrives in ambiguous,-agency environments and enjoys owning problems end-to-end Experience supporting computational biology or scientific...
- ...design· Blockchain programming and distributed systems· Research-backed engineering that bridges theory and practiceIf you're excited... ...solution will orchestrate communication between signing parties, developers should be skilled in networking (sockets, RPC frameworks) and...Remote work
$86.8k - $198k
Back-End DeveloperThe Opportunity:As a back-end developer, you know that a good site or system needs the right combination of clean code, APIs, analytics, and infrastructure to develop a user-focused solution. We’re looking for an experienced back-end developer with the...Full timeContract workPart timeWork at officeLocal areaRemote work$86.8k - $198k
Back End DeveloperThe Opportunity: As a software engineer, you know that good software is more than just a nice-looking interface and data... ...of clean code, APIs, analytics, and infrastructure to develop a user-focused solution. We’re looking for a software engineer...Full timeContract workPart timeWork at officeLocal areaRemote work- ...currently working on If you're interested, please send your updated resume to ****@*****.*** Job Title: Back End Developer Durations: Long-Term Location: Houston, TX Role Overview: Backend Developers build the software and data platforms...
$69k - $130k
...backend architecture. We will rely on you to design, build, and support scalable RESTful APIs and microservices. We expect you to develop robust backend solutions using Node.js, Python, Java, Spring Boot, and Express.js. You will design and optimize database models...Full time- ...Senior Software Developer in AI Lululemon is looking to hire a dynamic Senior Software Developer in AI to participate in AI proof-... ...projects within Site Reliability Engineering. The Senior-level Back-end Developer is expected to have 10+ years of experience with at...
- ...Communications team exists to send accurate and timely notifications to end customers based on their interactions with Best Buy across... ...SOA REST based web applications. Responsibilities: Developing Java/Spring web applications Aggressive refactoring...Contract workLocal areaImmediate startRemote work
$80k - $100k
...Join to apply for the Entry Level Back End Developer 2026 role at IBM. Introduction At IBM, work is more than a job - it's a calling: To build. To design. To code. To consult. To think along with clients and sell. To make markets. To invent. To collaborate. Not just to...- ...unable to sponsor an employment Visa. What You’ll Be Doing (We don’t love the bullet points, but we love the work!) As the Back End Developer, you'll be part of a team responsible for developing, sustaining, and troubleshooting a suite of mission applications. You'll...Visa sponsorshipWork visa
- ...Back End Developer Location: San Antonio, Texas Job Type: 1 year Contract potential to extend to 2 years Shift: Tclient Required Good understanding of object-oriented programming, MVC and Data modelling concepts. Experience in working with S4 Hana...Contract workShift work
- ...simulated LCD screen - in real-time! Below, users are streaming data back from their devices via our monitoring & debugging features.... ...into a reality. Come join us on the journey!The RoleAs a Back End Developer at Sahara Cloud, you will work closely with our product team...Remote work
- ...SynergisticIT Job OpportunitySynergisticIT is looking for entry-level software programmers, IT enthusiasts, Python/Java developers, Data analysts/Data Scientists. We welcome candidates with all visas and citizens to apply. Recent Computer science/Engineering/Mathematics...
- ...Required SkillsContractor shall demonstrate a minimum of (3) years' of experience as a Subject Matter Expert in Data Analysis and Back End Development. The government expectation for this position is that the contractor shall demonstrate ability to work independently with...For contractorsFor subcontractorWork at officeWorldwideFlexible hours
- ...certifications Five years of front-end UX/UI design for analytics dashboards... ...semantic-model delivery At least one year developing semantic models supporting natural-... ...days per week RFO issue to note: The Back-End Developer's preferred qualifications...2 days per week3 days per week
$100k
Synergisticit Job OpportunitiesFor more than 15 years Synergisticit has helped jobseekers stand out from other jobseekers by providing candidates the requisite skills, experience and technical competence to outperform at interviews and at clients. Here at SynergisticIT...Full timeH1b- ...GraphQL Panel Back End DeveloperLocation: Frisco, TX (temp. Remote due to Covid)GraphQL Back End Development is a mustGood Understanding and implementation experience on Schema Definition, GraphQL Data Types, Queries & Mutations.Implementation experience on Remote schema...Temporary workRemote work
- ...Senior Back End Developer The eCommerce back end senior engineer provides leadership, direction and implementation on technical projects that affect all consumer brand ecommerce sites. In this role, you will work within a team to implement new features and functionality...Remote workFlexible hours
- ...certifications that give hiring managers proof of your expertise.Actual Placement Support (Not Just Advice)We don't stop when the upskilling ends. Our job coaches help you apply to roles strategically, introduce you to hiring partners, and guide you until you land your Tech job...
- ...College HireAs an early college hire, you'll gain hands-on experience working on real-world projects that impact users globally. You'll collaborate with designers and developers to build responsive and user-friendly applications using modern technologies. We are......
$85k - $90k
▶︎ Job Details ・ Job Title: Back-End (+RPA) Developer ・ Client: Korean IT Consulting Company ・ Working Location: Plano, TX ・ Working style : Onsite ・ Employment Type: Employment Type: 1-year Contract / W-2 ・ Salary: $85K-90K annually (DOE) ・ Benefit: 40...Contract workTemporary workVisa sponsorshipFree visa- Location While our core team and headquarters are in Sacramento, California, we welcome remote workers from all over the country. We've built a strong culture to foster valuable team relationships with both remote and California team members. We host frequent trips...Summer workRemote workFlexible hours
- Required Qualifications Advanced proficiency in Java (75%) and Python. Hands-on expertise with: AWS ECS (both web services and batch processing) AWS Lambda AWS S3 ~ Hands-on experience with relational databases (PostgreSQL preferred) and cloud data warehouses...
$8.68k
...communicate with clients and asses/analyze the requirements for design/development (via automation solution, RPA). And as a senior developer/technical lead, he/she is responsible for managing, guiding the other developers. The role will primarily involve RPA...Full timeContract workTemporary work
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Back End Developer. Be the first to apply!
- entry level back-end developer United States
- back-end developer United States
- java developer backend United States
- lead backend developer United States
- senior backend developer United States
- remote back end developer United States
- backend .net developer United States
- junior backend developer United States
- backend software engineer United States
- backend python developer United States


