Senior Backend Engineer - Kotlin API Integrations (UK)
United States Digital Space LLC
United States Digital Space LLC is seeking a Freelance Senior Backend Engineer for our UK Market squad. You’ll ensure seamless data flow between our products and partners’ software solutions, building integrations with healthcare platforms. Location flexibility includes England, France, or Germany, with travel to the UK and Berlin and a commitment of at least 3 months. You’ll shape integrations, design scalable APIs, and own the end-to-end development process, delivering impactful solutions that #J-18808-Ljbffr United States Digital Space LLC
- ...Digital Space LLC is seeking a Freelance Senior Backend Engineer for our German Market squad. You will... ...’ software, building and maintaining integrations with senior care and hospital systems.... ...shape integrations, design scalable APIs, and own end-to-end delivery. #J-1880...SeniorKotlinRemote jobFreelance
$180k - $220k
...Senior Backend Engineer At Blackbird, we believe every guest should feel like... ..., and maintaining our core APIs. You'll work closely with... ...~ Strong proficiency in Kotlin or another statically typed... ...prompt engineering, or model integration) Pay Transparency Notice...SeniorKotlinFull timeFlexible hours$165k - $225k
...USD* We are looking for smart engineers who love to code, seek... ...excellent work. As part of the Client Integrations team, you will work on the external-facing APIs that power our customers’ core... ...DevOps engineers to build scalable backend solutions as we continue to...SeniorWork at officeRemote work$262k - $369k
...energy, AI, software, engineering, and product to build... ...the role As a senior staff backend software engineer building... ..., coordinate, and integrate your work. This is... ...language (Java/Kotlin or Golang preferred).... ...including use of RESTful APIs, gRPC, event-driven design...SeniorKotlinFull timeFlexible hours- ...Senior Software Engineer You'll join Slang's Engineering team as... ...your time developing backend services. Our backend is written in Kotlin, but prior Kotlin experience... ...and maintain GraphQL APIs that efficiently serve... ...Create robust integrations with our telephony (Twilio...SeniorKotlinHourly payRemote workShift work
- ...corners. Our platform integrates with systems like... ...Build platform and backend systems at Siro, across... ...reviews, documentation, and engineering best practices... ...languages, databases, API frameworks, and cloud... ...TypeScript Mobile: Swift, Kotlin Backend: Node.js, Typescript...SeniorKotlinWork at office3 days per week
$138k - $221k
...We are seeking a Senior Software Engineer to join our Payments... ...platform offers a single, integrated service for payment acceptance... ...implementing robust backend services ~ Proven... ...scalable and secure APIs that integrate with... ...Proficiency in Kotlin (or Java and willing...SeniorKotlinFull timeRemote work- A leading financial technology company is looking for senior software engineers focusing on backend development. This role involves taking ownership of services, building APIs, and leading projects. The ideal candidates will be proficient in Go and TypeScript/Node.js, with...SeniorRemote work
$190k - $240k
...The Affirm Card Engineering team is looking for a passionate Senior Software Engineer to help... ...money movement, bank data integration & merchant data. Affirm... ...the Debit card Build APIs and data models to work... ...Business teams. ~ Python/Kotlin development experience is...SeniorKotlinFull timeWork at officeRemote workFlexible hours- United States Digital Space LLC in New York City is seeking a Senior Software Engineer focused on backend systems. You will design, implement, and scale APIs and services, collaborating with product managers, designers, and other engineers. The role emphasizes service-oriented...Senior
- Apply is seeking a Backend Engineer for the Perplexity API Platform, focusing on building and optimizing critical APIs for developers. This role is vital to delivering high-performance, robust API solutions that can handle immense traffic and provide cutting-edge functionality...Senior
- Perplexity AI Inc. in New York is seeking experienced backend engineers to deliver cutting-edge APIs for developers. Join a dynamic team focused on building technology that reshapes how users interact with AI. The role involves designing and operating high-traffic APIs...Senior
$173.48k - $213.96k
...ROLEJoin the Peloton Product Engineering team within our... ...with continuous build integration in an Agile environment... ...preferredDeep understanding of Kotlin, Java, Android... ...interacting with REST APIs, handling data processing... ...Members across the US, UK, Canada, Germany, Australia...SeniorKotlinLocal areaWorldwide$192k - $240k
...and support you need to grow your career.Engineering at BrexEngineering at Brex is about... ...deploying applications with a focus on backend.Experience building and designing scalable... ...with backend programming languages (Java, Kotlin, Python)Familiarity with software engineering...SeniorKotlinWork at officeRemote workWork from home- Checkmate is seeking a senior Product Strategy & Leadership lead... ...platform vision and oversee complex integrations. You will mentor team members... .... You will translate API specifications into actionable... ...integrations, and partner with engineering to ensure scalable, high-...Senior
- ...seeking a highly skilled Product Manager to lead the integrations product roadmap, focusing on API-first contracts, data models, and developer experience... ...platform offerings. You will collaborate with Engineering, GTM, and Customer Success to translate market needs...Senior
- ...RolePolymarket is looking for a backend engineer to build the systems that... ...automation pipelines, data integrations, and the market lifecycle infrastructure... ...working with other senior engineers to design,... ...oracles, news feeds, sports APIs, and real-world data sources...Senior
- ...through the systems this team owns. As a Senior Backend Engineer on the Services team, you'll be... ...maintain event-driven data pipelines and APIs using streaming platforms like Kafka or... ...product, infrastructure, and data to integrate exchange services tightly with the broader...Senior
- ...infrastructure.About the rolePolymarket is looking for a backend/product engineer to own the core domain APIs and data models that power our consumer-facing... ...across product, infra, and data to ensure tight integration with the broader platform.What we’re looking forBackend...Senior
- Value Innovation Labs in New York City is seeking a Senior Systems Analyst / Technical Business Analyst with deep expertise in system analysis, integrations, SQL, APIs, and documentation. The role emphasizes creating comprehensive system analysis artifacts, mapping source...SeniorLocal area
- United States Digital Space LLC is seeking a Senior Product Manager to lead Platform & Integrations, including our public API and partner integrations. The role demands... ...fluency, data orientation, and partnership with engineering in a fast-paced SaaS environment. The role...Senior
- ...their workforce. We’re looking for a full-stack engineer to join our growing team and directly impact... ...full-stack development with TypeScript, Kotlin, React.js, Next.js and Spring Boot, integrating in-house and 3rd party APIs to create a holistic HR platform. You’ll thrive...SeniorKotlinRemote work
$182.8k - $247.3k
...around the world. We’re looking for backend engineers who have experience building and operating... ...programming in Java, Python, or Kotlin Solid understanding of one or more database... ...Industry experience building high-traffic APIs using public cloud providers...SeniorKotlinWork experience placement- ...highly skilled Product Manager to lead its integrations roadmap and transform integrations into... ...platform offerings. This role defines API contracts, data models, developer experience... ...-code framework. You will partner with Engineering, Field, and GTM to translate customer...SeniorRemote job
$140k - $240k
...Overview The Backend Engineer on the AI Platform team plays a critical role... ...-oriented architectures, APIs, workflow orchestration, event-driven integrations, identity and permissions, operational... ...Python, Go, C++, Rust, Java, Kotlin, Scala, TypeScript, or C#...KotlinLocal areaRemote workFlexible hours- ...and an ex-Amazon Alexa engineer who led AI/ML teams at... ...to own foundational backend systems at a critical... ...handling. Healthcare integrations: Own high-stakes... ...healthcare platforms via APIs and RPA. Platform... ...architecture with the CTO and a senior engineer. Onsite...Senior
- Sardine is seeking an experienced Integration Specialist to lead end-to-end onboarding and implementations for our fraud, risk, and compliance platform. You will own APIs, documentation, data mapping, and integration workflows while collaborating with customers and cross...SeniorRemote job
- ...Senior Backend Engineer WHY THIS ROLE EXISTS Our client is building AI technology to make healthcare... ...WHAT YOU WILL BUILD Healthcare API Infrastructure Design and... ...web platforms and AI decision making Integration and Data Systems Implement secure...Senior
- ...Senior Backend Engineer As a Senior Backend Engineer, you will design, build, and deploy the backend... ...and deploying backend services and APIs to our AWS infrastructure, write secure... ...ground-breaking foundation model, and integrate with Postgres, Redis, S3, and DynamoDB...SeniorFull timeWork at office
- ...Senior Backend Software Engineer Duration: one year C2c Rate: $70 - 80/hr Hybrid... ...responsible for developing, integrating, testing, deploying, and supporting... ...NET, cloud-native development, secure APIs, workflow automation, enterprise integration...SeniorAfternoon shift
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