Application Developer

Application Developer in Sheffield (S1), S1 | Experis Find a job Post a job Sign up Tired of searching? Let’s find you the right jobs faster Get Started Search These jobs were popular with other job seekers Senior Software Engineer, Real-Time London Stock Exchange London 1 day ago Senior Python Developer AdRoc Group South West London (SW1) Up to £550 per day 1 month ago Lead Software Engineer - Equities - VP Morgan Stanley London 3 weeks ago Software / AI Engineer Searchability (UK) Ltd UK £400 - £500 per day 2 days ago Lead AI Engineer Sanderson Government and Defence London £540 - £560 per day 2 days ago Fullstack Engineer Randstad Digital Manchester (M1), M1 £55 - £65 per hour 2 days ago Senior Engineering Lead, Index Distribution London Stock Exchange London 3 weeks ago Full Stack Developer Hays London £400.0 - £410.0 per day + up to £410 pd (Inside IR35) 3 weeks ago Senior Software Engineer Ask4.com Sheffield (S1), S1 4JL From £50,000 to £60,000 per annum 2 weeks ago Principal Developer Sanderson Recruitment London Up to £600 per day + Inside IR-35 3 days ago Application Developer Experis View Profile Sheffield (S1), S1 Freelance / Project collaboration; On-site Published: 1 day ago £400 - £475 per day Apply Save Application Developer Experis Apply Role Title: Application Developer Location: Sheffield (3 days onsite is mandatory) Rate: £400 - £475 Role Summary We are looking for a highly skilled Application Developer with strong expertise in identity API development, data ingestion and transformation, and event-driven (Pub/Sub) architectures . This role focuses on building secure, scalable identity and access workflows across Google Cloud Platform, integrating identity services with custom APIs, Pub/Sub pipelines, and cloud-native applications. You will collaborate closely with tech leads, Cloud Security, DevOps, and Application Engineering teams to design and implement robust IAM automation, identity lifecycle workflows, and secure service integrations that support enterprise-level cloud and Identity operations. Key Responsibilities Identity Orchestration Design and implement identity flows for provisioning, de-provisioning and orchestration of identity lifecycle events. Integrate with Cloud Identity Services, ServiceNow, and internal services to streamline / orchestrate identity provisioning and identity lifecycle management. Build policy-based orchestration workflows for adaptive authentication and contextaware access using industry standards (like OPA). API Development Design, build, and secure RESTful APIs and backend services supporting identity, provisioning, and governance workflows. Integrate APIs with our new authentication service for token validation, user sessions, and application-level authorization. Build and document internal SDKs, middleware, and shared libraries for consistent IAM logic across services. Ensure API security, performance, reliability, resilience, and observability. API-to-Pub/Sub Event Processing Develop pipelines where API events publish to Pub/Sub for asynchronous workflows such as: o automated identity lifecycle tasks o access review event triggers o logging and audit forwarding o security anomaly detection Build Cloud Functions, Cloud Run microservices, or containerized services to process Pub/Sub messages. Implement robust event-processing patterns including retries, idempotency, DLQs, and structured logging. Automation & Infrastructure as Code Build and maintain Terraform modules for IAM, API services, Pub/Subtopics, workloads, and permissions . Automate deployment and validation of identity and access configurations via CI/CD pipelines. Implement automated testing for IAM policies and API behaviour. Support, Troubleshooting & Collaboration Troubleshoot identity, access, and API workflow issues across distributed systems. Provide technical guidance to engineering teams on secure API design, IAM best practices, and identity workflows. Work with security teams during audits, compliance checks, and incident investigations. Required Skills & Experience Technical Expertise Proven experience with modern identity orchestration platforms (Auth0 Actions, Okta Workflows, WorkOS, or SlashID) Strong programming skills in Python, Go, or Node.js for API and microservice development. Experience designing and deploying cloud-native APIs (Cloud Run, Cloud Functions, GKE). Deep understanding of event-driven architectures , Pub/Sub, message processing, and workflow automation. Strong knowledge of OAuth2, OIDC, JWT, SAML , and identity federation patterns. Proficiency in Terraform or equivalent IaC tools. Experience using API gateways, reverse proxies, or service mesh technologies. Soft Skills Analytical thinker with strong debugging and root-cause analysis abilities. Clear communication skills with the ability to collaborate across engineering, security, and operations teams. Ownership mindset, with a security-first mentality and attention to detail. Ability to work in an agile, fast-paced environment. Nice-to-Have Full Stack App Development (React) Google Professional Cloud Security Engineer or Cloud Architect certification. Experience with additional identity providers (Okta, Azure AD, Ping Identity). Familiarity with Kubernetes (GKE RBAC + workload identity). Experience using Secret Manager, Vault, or other secrets management tools. Knowledge of compliance frameworks (SOC2, ISO 27001, PCI, HIPAA). Education * Bachelor's degree in computer science, Engineering, Information Security, or equivalent hands-on experience. If you receive suspicious outreach claiming to be from us, please contact us via the ManpowerGroup website. Apply Experis Banking and Financial Services 63 Jobs Company Profile In Short Industry Recruitment Founded 1987 Location UK Company size 1000+ About Us Experis delivers talent with the powerful combination of the technical skills you're after multiplied by the soft skills that are harder than ever to find. Offering IT resourcing, project solutions and managed services, we enable organisations to cultivate individuals and teams prepared for the digital age. Experis is part of the ManpowerGroup family of brands. ManpowerGroup is
the world leader in innovative workforce solutions, connecting human
potential to the power of business Who We Are We're Experis - the professional resourcing arm of ManpowerGroup and
the largest IT recruiter in Europe; placing more than 44,000 experts
into IT every day. We're a different kind of talent company with a reputation as the
global leader in professional talent and workforce solutions. That's
why over 80% of the Fortune Global 500 turns to us for the professional
talent that will set their business apart. Diversity and Inclusion We pride ourselves on our ability to make a difference to the individuals, communities, and organisations we work with. Social responsibility really is at our core; and we are committed to developing socially inclusive work environments for the long term. In fact, our commitment to sustainability has been recognised in a number prestigious organisations, including the Ethisphere Institute, who named us as being one of the World's Most Ethical Companies for 14 consecutive years, and Fortune Magazine, who listed us as one of the World's Most Admired Companies for 14 years in a row. Develop Your Career Unlocking talent is what we do. Through a structured career ladder
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digital learning, leadership programmes and many other development
initiatives. Rewards and Recognition Our role is to help our employees develop their careers through
planning, coaching and training. We recognise everyone’s contribution to
our success and reward achievement at every level. Along with generous
commission and bonus schemes, we offer a variety of on-the-spot rewards -
from bottles of fizz, team nights out, and extra days off; to
thrill-seeking experience days, social events and money off vouchers. Similar Application Developer Jobs Popular with Other Job Seekers Senior Software Engineer, Real-Time London Stock Exchange London 1 day ago Senior Python Developer AdRoc Group South West London (SW1) Up to £550 per day 1 month ago Lead Software Engineer - Equities - VP Morgan Stanley London 3 weeks ago Software / AI Engineer Searchability (UK) Ltd UK £400 - £500 per day 2 days ago Lead AI Engineer Sanderson Government and Defence London £540 - £560 per day 2 days ago Fullstack Engineer Randstad Digital Manchester (M1), M1 £55 - £65 per hour 2 days ago Senior Engineering Lead, Index Distribution London Stock Exchange London 3 weeks ago Full Stack Developer Hays London £400.0 - £410.0 per day + up to £410 pd (Inside IR35) 3 weeks ago Senior Software Engineer Ask4.com Sheffield (S1), S1 4JL From £50,000 to £60,000 per annum 2 weeks ago Principal Developer Sanderson Recruitment London Up to £600 per day + Inside IR-35 3 days ago Application Developer jobs Application Developer jobs in Sheffield IT jobs IT jobs in Sheffield Software Development jobs Software Development jobs in Sheffield Jobs in Sheffield Software Engineer jobs Software Developer jobs Applications Developer jobs Application Software Engineer jobs Senior Applications Developer jobs Senior Software Application Engineer jobs Developer jobs Coder jobs Web Developer jobs Software Engineering jobs Application Software Developer jobs App Development jobs Application Programmer jobs Applications Development Engineer jobs Software Designer jobs Software Engineer Developer jobs Get hired. Find success. Get started Totaljobs About us Careers at Totaljobs Press Partners Privacy policy Terms and conditions Cookies Legal and compliance Accessibility Jobseekers Salary Planner Jobseeker help centre Career advice Recruiters Post job ads Recruiting news Courses Contact us - recruiters Recruit internationally Download App store Play store The Stepstone Group UK Ltd © 2026 We use cookies We use cookies to operate our website, measure how people use our services to help us improve them, enrich usage profiles and personalise the content displayed to you. We also share information about your use of our site with our social media, advertising, and analytics partners, who may combine it with other information, to show you relevant ads on other websites, and to measure the performance of our advertising. Some cookies are essential for the operation of our website. If you would prefer us not to use the non-essential cookies, click “Just necessary”, but please be aware that this may impact your experience of our site and the services we are able to offer. Click “Accept” if you’re happy for us to place these cookies. You can change your mind at any time. Store and / or access information on a device Cookies, device identifiers, or other information can be stored or accessed on your device for the purposes presented to you. Personalised ads and content, ad and content measurement, audience insights and product development Ads and content can be personalised based on a profile. More data can be added to better personalise ads and content. The performance of ads and content can be measured. Insights about audiences who have viewed the ads and content can be extracted. Data can be used to build or improve user experience, systems and software. Display third-party content (social networks, videos) Content from social networks and embedded content from third-party providers can be displayed. Identifiers derived from authentications If an identifier is created based on authentication data, such as contact details associated with online accounts you have set up on websites or apps (e.g. email address, phone number) or customer identifiers (e.g. an identifier provided by your telecommunications provider), then this identifier can be used to recognize you across websites, apps and devices if you are logged in with the same contact details. Just Necessary Accept All Cookie Settings You can also exercise your right to object to data processing based on legitimate interests under “Privacy Policy”. Privacy Policy Cookie policy