576 to 600 of 1,184 Permanent REST Jobs

including system updates and regression testing. Essential Skills and Experience Significant hands-on experience as a Salesforce Developer in complex environments. Expertise in Apex, Lightning Web Components (LWC), SOQL, REST/SOAP APIs, and Salesforce configuration tools. Strong working knowledge of Salesforce Service Cloud (essential); experience with Experience Cloud, Sales Cloud & Marketing Cloud (desirable). Proven experience with CI/ More ❯

including system updates and regression testing. Essential Skills and Experience Significant hands-on experience as a Salesforce Developer in complex environments. Expertise in Apex, Lightning Web Components (LWC), SOQL, REST/SOAP APIs, and Salesforce configuration tools. Strong working knowledge of Salesforce Service Cloud (essential); experience with Experience Cloud, Sales Cloud & Marketing Cloud (desirable). Proven experience with CI/ More ❯

and Experience: Experience with AWS/Cloud platforms Proven ability to deliver high-quality applications Strong programming skills with experience in Java and modern OO principles (SOLID, SOA, HTTP, REST) Experience with Spring Boot and Spring Cloud Experience in building APIs and working within a microservices architecture Ability to collaborate effectively within a team Commitment to best practices, including Pair More ❯

Trading UI Engineer – Front Office JavaScript, React, typescript, NodeJS, Tailwind, GraphQL, ApolloQL, Webpack, Cypress, HTML, CSS, REST, Data Visualisation, API. Real Time Trading Software, UI Development Perm Role – London – Onsite. £80000 - £100000 plus bonus Harrington Starr has partnered up with a Global Investment Bank in the City of London who are looking to hire a Senior UI Trading Software Developer More ❯

Trading UI Engineer – Front Office JavaScript, React, typescript, NodeJS, Tailwind, GraphQL, ApolloQL, Webpack, Cypress, HTML, CSS, REST, Data Visualisation, API. Real Time Trading Software, UI Development Perm Role – London – Onsite. £80000 - £100000 plus bonus Harrington Starr has partnered up with a Global Investment Bank in the City of London who are looking to hire a Senior UI Trading Software Developer More ❯

user research to understand requirements Used TDD or BDD and has experience with Mocha/Jasmine/Cucumber/Webdriver Sass Knowledge of Angular Templating language such as Handlebars REST Additional Information All your information will be kept confidential according to EEO guidelines. More ❯

customer feedback to influence product and integration roadmap. Requirements 5+ years’ experience in Solutions Engineering, Implementation, or Forward Deployed roles within SaaS, FinTech, or RegTech. Technical proficiency with: APIs (REST, Webhooks, Postman), ETL pipelines and data ingestion, Relational databases (PostgreSQL, MySQL) Python or JavaScript/TypeScript Strong communication skills with both technical and non-technical stakeholders. Experience working with financial More ❯

customer feedback to influence product and integration roadmap. Requirements 5+ years’ experience in Solutions Engineering, Implementation, or Forward Deployed roles within SaaS, FinTech, or RegTech. Technical proficiency with: APIs (REST, Webhooks, Postman), ETL pipelines and data ingestion, Relational databases (PostgreSQL, MySQL) Python or JavaScript/TypeScript Strong communication skills with both technical and non-technical stakeholders. Experience working with financial More ❯

operators Building monitoring dashboards for grid stability and energy storage operations What they’re looking for Strong software fundamentals — ideally Python , Rust is a bonus Experience with distributed systems, REST APIs, and microservices Knowledge of Kafka (or similar), PostgreSQL , and time-series data Familiar with Docker, monitoring, and observability tools ✅ Experience in a startup or scale-up , collaborating closely with More ❯

operators Building monitoring dashboards for grid stability and energy storage operations What they’re looking for Strong software fundamentals — ideally Python , Rust is a bonus Experience with distributed systems, REST APIs, and microservices Knowledge of Kafka (or similar), PostgreSQL , and time-series data Familiar with Docker, monitoring, and observability tools ✅ Experience in a startup or scale-up , collaborating closely with More ❯

given the opportunity to lead teams that build, test and ship super-fast in an environment where people value engineering best practice, pairing and continuous improvement. Skills: C#, .NET, REST APIs Azure Cloud - Azure Functions, Logic Apps, Service Bus, CosmosDB TDD, CI/CD, SOLID The money is good too – up to £80k plus benefits for the right person. If More ❯

testing across multiple component teams in a complex program.Strong hands-on experience with API/web service testing (JSON, SOAP).Proficient with SoapUI (or similar tools) for SOAP and REST testing.Solid understanding of commercial insurance concepts and common product flows.Strong stakeholder management, communication and cross-team coordination skills.Experience in test planning, defining test strategy, and driving execution to meet timelines.Experience More ❯

What We’re Looking For Strong proficiency in Python and JavaScript Experience with Flask (or similar server-side frameworks) Solid React (or equivalent modern JS library) skills Comfortable with REST APIs, MongoDB , and cloud deployment Familiarity with CI/CD , containerisation , and scalable systems Self-motivated, collaborative, and proactive Nice to Have: Experience with AI integration or data processing An More ❯

automation tools such as Power Automate or Zapier . What You'll Bring Strong experience with C#/.NET (Core or Framework) in integration-heavy environments. Deep understanding of REST, WebAPI, event-driven architectures , and asynchronous messaging . Proven ability to build resilient, fault-tolerant systems using retry patterns, queues, and circuit breakers. Solid knowledge of integration security , including authentication More ❯

a focus on rapid prototyping and data driven applications. Solid understanding of multi-processing and AsyncIO. Experience with pandas, NumPy, and SQL for data analysis and transformation. Exposure to REST APIs, messaging systems, and integration with trading or risk platforms. Hands-on experience building front-end tools or GUIs. Proven ability to work directly with front-office stakeholders. Strong problem More ❯

a focus on rapid prototyping and data driven applications. Solid understanding of multi-processing and AsyncIO. Experience with pandas, NumPy, and SQL for data analysis and transformation. Exposure to REST APIs, messaging systems, and integration with trading or risk platforms. Hands-on experience building front-end tools or GUIs. Proven ability to work directly with front-office stakeholders. Strong problem More ❯

trading applications built on microservices. Work extensively with queuing , including synchronous and asynchronous communication patterns. Contribute to system architecture, threading, and advanced async design. Build across C#.NET , .NET Core , REST APIs , RabbitMQ , Azure Service Bus , SQL Server , WPF , and some React . Apply strong engineering practices: unit/integration testing , DDD , TDD . Collaborate closely within a small team focused More ❯

maintainability. Translate complex business requirements into robust technical solutions. Mentor and guide Salesforce Developers and Administrators, providing technical leadership and code reviews. Oversee integration design with external systems using REST and SOAP APIs and middleware. Manage CI/CD pipelines, DevOps practices and environment management. Ensure all work adheres to governance, security standards and data protection requirements. Work closely with More ❯

is beneficial Generative AI Product experience Production-grade Python skills Frontend experience with Vue + TypeScript , or React and a willingness to learn Vue Understanding of web performance, testing, REST APIs, OAuth Comfort working in fast-paced, ambiguous environments Bonus: experience with devtools, no-code/low-code, AI tools, or OSS contributions This is a rare chance to learn More ❯

is beneficial Generative AI Product experience Production-grade Python skills Frontend experience with Vue + TypeScript , or React and a willingness to learn Vue Understanding of web performance, testing, REST APIs, OAuth Comfort working in fast-paced, ambiguous environments Bonus: experience with devtools, no-code/low-code, AI tools, or OSS contributions This is a rare chance to learn More ❯

organization. Ability to work independently as well as part of a collaborative team. Preferred Qualifications: Proven experience (3+ years) as a FileMaker Developer. Knowledge of SQL, JSON, XML, and REST APIs. Experience integrating FileMaker with other software applications. FileMaker certification is a plus. Education Requirements: Bachelor's Degree or equivalent experience. More ❯

work, regardless of task size. Trusted to complete what they start. Key Skills They Will Develop Developing and maintaining applications using JavaScript, HTML5, and SQL . Building and integrating REST API calls to connect applications and services. Learning FileMaker development , including coding, architecture, and deployment. Configuring and creating automation workflows using industry-specific software. Collaborating with the development team to More ❯

and Lightning Web Components. Work collaboratively with internal teams to gather requirements and translate them into scalable technical designs. Manage integrations between Salesforce and third-party applications using APIs, REST, and SOAP. Maintain data integrity through automation, validation rules, and data cleansing initiatives. Support Salesforce configuration activities, including Flows, Process Builder, and Reports/Dashboards. Provide technical documentation, testing, and More ❯

Developer or Solution Architect. Strong hands-on development experience with Salesforce Sales Cloud , Salesforce Service Cloud and custom Lightning solutions. Proficiency in Apex, LWC, Visualforce, Flows and integrations using REST/SOAP APIs. Experience integrating Salesforce with external systems and data platforms. Strong understanding of security, governance and release management best practice. Salesforce certifications (such as Platform Developer II or More ❯

DevOps experience Creating efficient, robust and stable code Solving performance problems and architectural challenges Using initiative to solve complex problems Considerable knowledge of modern web technologies (including PHP, Symfony, REST API’s, jQuery) Be able to recommend new tech solutions to the team as appropriate Identifying opportunities to improve existing code Work within an Agile framework The role is fully More ❯