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20 jobs similar to Principal Software Engineer Backend Technologies, Platform (UK Remote)

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UK

  • Design, develop, and optimize scalable shared backend services using Java and serverless technologies (AWS Lambda).
  • Design and implement RESTful APIs and event-driven systems, contributing to frontend components as needed.
  • Collaborate with cross-functional teams, mentor junior developers, and maintain CI/CD pipelines for high-quality software delivery.

Turnitin is a recognized innovator in global education, partnering with educators and institutions for over 25 years to develop learning integrity solutions. With over 16,000 academic institutions and team members in 35+ countries, the company fosters a remote-first culture focused on purpose, accountability, and well-being.

  • Design and develop scalable, high-performance, low-latency backend services using Java and AWS technologies.
  • Collaborate with product, frontend, and QA teams to define technical requirements and ensure smooth integration with other platform components.
  • Optimize existing services for maximum performance, reliability, and maintainability while implementing CI/CD best practices.

Oscilar builds an advanced AI Risk Decisioning Platform that helps banks, fintechs, and digital organizations manage fraud, credit, and compliance risk. The team includes industry veterans from Meta, Uber, Citi, and Confluent, and operates with a mission-driven culture emphasizing ownership and innovation.

Global

  • Design and develop scalable microservices and RESTful APIs using Java and Spring Boot.
  • Build backend systems supporting dynamic call routing, queue management, and config-driven workflows.
  • Collaborate with UI teams to power self-service interfaces for business users on Amazon Connect.

Miratech is a global IT services and consulting company that helps visionaries change the world through digital transformation. Retaining nearly 1,000 full-time professionals with a culture of Relentless Performance and a 99% project success rate, the company operates across 5 continents and 25 countries.

$132,000–$165,000/yr
US Unlimited PTO

  • Craft streamlined user flows and build robust APIs for bank administrators and customers.
  • Write clean, thoroughly documented, and well-tested code with emphasis on error handling and edge cases.
  • Provide technical guidance and code reviews, raising the bar for teammates.

Alkami provides a digital sales and service platform for U.S. banks and credit unions. Founded in 2009, it is a fast-growing SaaS company with a culture recognized as Best Place to Work in Fintech and Best Company Culture.

Brazil

  • Collaborate with cross-functional teams to design and implement complex backend solutions using Java Spring Boot.
  • Write maintainable, scalable code following best practices and stay up-to-date with latest frameworks.
  • Develop, test, and deploy backend solutions, providing ongoing maintenance and support documentation.

KTO is an iGaming company founded in 2018, offering online sports betting and casino entertainment with a proprietary platform. They are a rising leader in LATAM, ranked among Brazil's top 10 iGaming brands, and foster a culture of innovation, transparency, and diversity.

Global

  • Lead the design, development, and implementation of microservices for the next-generation enterprise campaign management platform.
  • Architect scalable and reliable solutions while collaborating with cross-functional teams including Product Managers and Quality Engineers.
  • Provide technical guidance, conduct code reviews, and stay current with emerging technologies to ensure high code quality and performance.

Miratech is a global IT services and consulting company that helps visionaries change the world. With nearly 1,000 full-time professionals and over 25% annual growth, the company operates across 5 continents and 25+ countries, maintaining a culture of Relentless Performance with a 99% project success rate since 1989.

Europe

  • Build Cloud-native, AWS-based greenfield software and invent solutions to various user, business, and technical challenges.
  • Operate a 'build it and own it' culture with a DevOps and individual contributor mindset.
  • Be a key member of a fast-growing global team, shaping the back-end building squads for scale.

Santander Auto Software is building a brand-new global software platform and product suite for international customers, focusing on creative technology solutions. The company is a 100% tech-focused, cross-border team with a leadership team of experienced tech professionals, promoting equal opportunities regardless of gender, culture, or disability.

Latin America

  • Design and implement robust backend services using Java, Spring, Spring Boot, and Spring Batch.
  • Architect scalable distributed systems and microservices, and build RESTful APIs for core financial products.
  • Mentor junior engineers and enforce best practices while collaborating with stakeholders to align technical solutions with business goals.

Clara is a leading B2B fintech for spend management in Latin America, helping over 20,000 businesses with corporate cards, bill pay, financing, and a B2B platform. It is certified as one of the world's fastest-growing companies, a Great Place to Work, and a LinkedIn Top Startup, with a high-talent-density culture and a team distributed across the Americas.

Portugal

  • Design, develop, and maintain scalable backend applications using modern Java (17/21) and the Spring ecosystem
  • Own software delivery from architecture and implementation through deployment, monitoring, and production support
  • Collaborate with cross-functional teams to build resilient cloud-native applications and influence technical architecture

Pragmatike is recruiting on behalf of a leading software engineering consultancy that partners with global organizations to design, build, and scale high-performance digital products. The company delivers modern cloud-native applications and distributed systems while fostering a collaborative, engineering-first culture.

US Unlimited PTO 12w maternity 12w paternity

  • Develop core components on an Engineering pod with a focus on scalable backend services and RESTful APIs.
  • Measure and optimize the performance, scalability, and uptime of backend services.
  • Collaborate with product management, customer success, and support to deliver the best user experience.

Branch empowers workers with financial freedom by accelerating payments and providing accessible financial services. They are a remote-first FinTech company with a collaborative culture and employees across the U.S.

US Unlimited PTO

  • Architect and implement scalable, performant, and secure software solutions for backend distributed platforms.
  • Provide technical leadership, write clean code, and conduct code reviews to ensure best practices.
  • Collaborate cross-functionally with product managers, designers, and engineers to translate business requirements into technical specifications.

Dave is a financial app that builds products to level the financial playing field for Americans who are financially vulnerable or living paycheck to paycheck. As a public fintech company, it offers a digital financial platform with products like ExtraCash and is focused on creating accessible credit options.

Latin America

  • Develop responsive UIs using React and TypeScript, collaborating with design and backend teams.
  • Build scalable Java-based microservices with domain-driven design and event-driven architecture (e.g., Kafka, RabbitMQ).
  • Drive CI/CD improvements, champion zero-downtime deployments, and promote engineering best practices.

Nortal is a digital transformation company that shapes complex solutions for global enterprises and public sector organizations. With over 25 years of experience and a focus on AI-driven transformation, they foster a vibrant, autonomous, and outcomes-focused culture.

$180,000–$240,000/yr
US

  • Architect, build, and evolve a serverless backend stack in AWS, primarily utilizing Python 3.10+, Lambda, CDK, DynamoDB, and related services.
  • Lead the design, implementation, and integration of REST API, event processors, services, and datastores for the Happy Ring.
  • Establish backend engineering best practices and provide technical leadership across system design, observability, reliability, and security.

Happy Health is revolutionizing sleep medicine delivery through a comprehensive telehealth platform, using an FDA-cleared medical device called Happy Ring for home sleep testing and ongoing monitoring. The company is a remote-first team with a physical office in Austin, TX, operating in a fast-paced environment focused on commercial scale.

$130,000–$170,000/yr
US

  • Design and implement scalable backend services and APIs for thick client desktop applications.
  • Develop and maintain data processing pipelines for structured and semi-structured data.
  • Optimize backend systems for performance, concurrency, and efficient resource utilization.

Agile Defense provides adaptive innovation to support the nation's most important missions through advanced technologies. The company values its employees as family, fostering a culture defined by the 6Hs: Happy, Helpful, Honest, Humble, Hungry, and Hustle.

US

  • Design scalable systems and validate AI-assisted code to drive technical excellence across the team.
  • Collaborate with engineers through pairing, code reviews, and knowledge sharing in weekly Friday Dev Chats.
  • Mentor junior engineers and work with product team to execute features from requirements to deployment.

Real (Nasdaq: REAX) is a publicly traded, fast-growing global real estate brokerage powered by technology and driven by people. With operations across the U.S., Canada, India, and the District of Columbia, the company pairs Tech x Humanity to reimagine the residential real estate experience.

Canada Unlimited PTO

  • Design and implement scalable, secure, and high-performance backend systems and APIs supporting AI-driven security and pentesting.
  • Collaborate with product, frontend, and infrastructure teams to define system architecture and translate requirements into robust technical solutions.
  • Optimize application performance, scalability, and security across distributed and cloud-native environments.

The company is a partner of Jobgether, specializing in AI-driven cybersecurity and vulnerability detection. It is a highly technical, fast-paced environment focused on solving complex scalability and security challenges at enterprise scale.

Global

  • Design and optimize scalable APIs and distributed services for mission-critical fraud detection technology.
  • Investigate complex technical issues through root cause analysis and performance testing.
  • Collaborate cross-functionally to deliver robust, production-ready solutions while mentoring junior engineers.

The hiring partner company builds high-performance backend systems for real-time fraud detection technology used by organizations worldwide. The engineering team is globally distributed and values technical excellence, autonomy, and knowledge sharing.

LATAM

  • Design, develop, and maintain scalable backend applications using Python, and build RESTful APIs and backend services.
  • Collaborate on frontend development using React, and design cloud-native solutions leveraging AWS services.
  • Optimize application performance, reliability, and security, and participate in architecture discussions and Agile ceremonies.

AccelOne provides custom software development and design services for companies across the U.S. and Latin America, built on core principles of transparency, communication, and accountability. They deliver high-quality, scalable solutions for clients and have a collaborative, people-first culture that values innovation and technical excellence.

Netherlands

  • Design, develop, and maintain scalable backend APIs supporting authentication, payments, subscriptions, analytics, consumption tracking, and text-to-speech services.
  • Build and optimize reliable backend systems with a strong focus on scalability, performance, security, and maintainability.
  • Collaborate with cross-functional teams to align backend architecture with product strategy, customer needs, and user experience goals.

Our partner is a technology company building backend infrastructure that powers products used by millions worldwide, focusing on accessibility and learning experiences. They are a fast-growing global company with a collaborative engineering culture and a fully distributed team.

$145,000–$156,000/yr
Global

  • Lead design and development of product features for highly available payment processing, subscription billing, and reporting platforms.
  • Debug and troubleshoot complex issues, optimize system performance, and ensure reliability across money-movement flows.
  • Mentor junior team members and lead adoption of best practices for coding standards, testing, and deployment.

FastSpring is the world's leading ecommerce platform for software and SaaS companies, powering sales growth for over 3,500 companies in more than 200 countries. Founded in 2005 and privately owned, we are an Inc. 5000 honoree with offices globally and a remote-first, inclusive culture.