Backend Net Engineer Jobs

Principal Backend Engineer – Java Location: Edinburgh (Hybrid) | Practice Area : Technology & Engineering | Type: Permanent Architect the next generation of financial platforms. Lead with Java expertise. Deliver impact at scale. The Role We’re looking for a Principal Backend Engineer (Java) to join our Technology & Engineering team. This leadership-level role calls for deep technical acumen, a security-first mindset, and strong coaching capabilities. You’ll architect cloud-native backend systems, shape our engineering standards, and mentor teams to deliver high-performance platforms for global financial clients. This role will sit in our Scotland office, with a need to potentially work in either Glasgow or Edinburgh depending on client expectations. What You’ll Do Lead the design and development of secure, scalable backend systems using Java 11+ and Spring Boot Architect distributed microservices and event-driven systems deployed to public cloud (preferably AWS) Guide technical decision-making across teams and align solutions to enterprise strategies Champion engineering excellence, continuous improvement, and a test-first culture Coach developers, shape delivery processes, and influence broader engineering practices across Capco What We’re Looking For Expertise in Java 11/17+, Spring Boot, and AWS-based enterprise cloud solutions Proven track record architecting secure, scalable services using microservices and CQRS patterns Strong experience in CI/CD pipelines, SQL/NoSQL, Kafka, CloudFormation, and streaming frameworks Advanced understanding of system security protocols (e.g., OAuth, IAM, TLS, encryption) Leadership capability to manage and mentor teams while driving technology strategy Bonus Points For Contributions to thought leadership, mentoring, or RFPs within consultancy or tech environments Hands-on experience with GitLab CI/CD, Cucumber, and Behaviour Driven Design AWS Certified Solutions Architect (Associate or Professional) History of deliv

Senior Backend Engineer – Java Location: Glasgow (Hybrid) | Practice Area : Technology & Engineering | Type: Permanent Power the platforms behind modern finance. Shape cloud-native solutions with Java at their core. The Role We’re seeking a Senior Backend Engineer (Java) to join our Technology & Engineering team. You’ll bring expertise in building robust, scalable, cloud-native applications using Java, Spring Boot, and AWS. Working on high-impact platforms for Tier 1 financial institutions, you’ll lead backend design, champion agile best practices, and contribute to the evolution of modern banking technology. This role will sit in our Scotland office, with a need to potentially work in either Edinburgh or Glasgow depending on client expectations. What You’ll Do Design and build microservices-based applications using Java 11+ and Spring Boot Deliver enterprise-ready cloud solutions, with a focus on AWS infrastructure and services Build and manage robust CI/CD pipelines and ensure secure, scalable deployments Write comprehensive tests and implement quality-driven development across the stack Collaborate in agile teams and contribute to design decisions, troubleshooting, and continuous improvement What We’re Looking For Expert-level Java development (Java 11, 17, 21+), Spring Boot proficiency Deep knowledge of public cloud environments, preferably AWS Experience designing cloud-native, microservices, and event-driven architectures Strong grasp of CI/CD pipelines, SQL/NoSQL databases, Kafka, and Java Streaming Familiarity with infrastructure-as-code (e.g., CloudFormation), distributed systems, and secure design practices Bonus Points For Experience using GitLab for CI/CD pipelines and Cucumber for BDD test automation AWS Certified Solutions Architect (Associate or Professional) Knowledge of CQRS patterns and performance testing strategies Passion for exploring emerging cloud technologies and frameworks Experience delivering customer-facing or business-critical a

Senior Backend Engineer – Java Location: Edinburgh (Hybrid) | Practice Area : Technology & Engineering | Type: Permanent Power the platforms behind modern finance. Shape cloud-native solutions with Java at their core. The Role We’re seeking a Senior Backend Engineer (Java) to join our Technology & Engineering team. You’ll bring expertise in building robust, scalable, cloud-native applications using Java, Spring Boot, and AWS. Working on high-impact platforms for Tier 1 financial institutions, you’ll lead backend design, champion agile best practices, and contribute to the evolution of modern banking technology. This role will sit in our Scotland office, with a need to potentially work in either Edinburgh or Glasgow depending on client expectations. What You’ll Do Design and build microservices-based applications using Java 11+ and Spring Boot Deliver enterprise-ready cloud solutions, with a focus on AWS infrastructure and services Build and manage robust CI/CD pipelines and ensure secure, scalable deployments Write comprehensive tests and implement quality-driven development across the stack Collaborate in agile teams and contribute to design decisions, troubleshooting, and continuous improvement What We’re Looking For Expert-level Java development (Java 11, 17, 21+), Spring Boot proficiency Deep knowledge of public cloud environments, preferably AWS Experience designing cloud-native, microservices, and event-driven architectures Strong grasp of CI/CD pipelines, SQL/NoSQL databases, Kafka, and Java Streaming Familiarity with infrastructure-as-code (e.g., CloudFormation), distributed systems, and secure design practices Bonus Points For Experience using GitLab for CI/CD pipelines and Cucumber for BDD test automation AWS Certified Solutions Architect (Associate or Professional) Knowledge of CQRS patterns and performance testing strategies Passion for exploring emerging cloud technologies and frameworks Experience delivering customer-facing or business-critical

About Us: Future is building a personalized guidance system for lifelong health. We help people understand what to do next for their body, goals, and stage of life — then support them in turning those decisions into sustained behavior change. By combining AI, human expertise, personal health data, and accountability, Future helps members improve performance today while building the resilience, capacity, and healthspan they need for decades to come. About the Role Backend engineers at Future operate at all levels -- building out core services, data pipelines, essential business systems, developer operations, and customer-facing features. We’re responsible for the entirety of product surfaces across user and trainer experiences, and the initiatives we drive span across foundational core infrastructure to rapid feature iteration. Backend engineers work closely with several engineering teams & product managers to deliver the APIs, infrastructure, and scalability needed for every initiative. You will: Design, implement, and test APIs for new products, features, and services Maintain and optimize existing systems, with emphasis on database-related performance Collaborate with other engineers across the stack as well as cross-functional stakeholders Keep up to date with the latest technologies and industry best practices, and encouraging fellow engineers to do so Serve as on-call engineer approximately one week per month, responsible for triaging incoming issues during non-working hour You have: Great Product thinking. You think about the end user experience when you are building to consider whether the features you are building are not only meeting requirements but delighting users. 8+ years of production development experience, specifically working on backend / API Scrappiness and pragmatism. We are a small and fast-moving startup and value someone who can continually weigh tradeoffs to balance engineering excellence with velocity. Strong knowledge

1KOMMA5° At 1KOMMA5° , we pursue a clear vision: Living on wind and sunlight forever for free . To make this a reality, we are building the energy system of the future with Heartbeat AI. Want to be part of it? We bring together regional craftsmanship and scalable software: We don't think of solar, batteries, heat pumps, and e-mobility as isolated components, but control them as an intelligent, integrated overall system in our virtual power plant. Directly connected to the electricity market – in real time, fully automated. This way, energy is used when it is available from renewables and particularly cost-effective. By 2030, our goal is to transition 1.5 million households to renewable energies. Over 3,000 people are working towards this every day, at more than 80 locations worldwide, from Finland to Australia. Want to take responsibility and build solutions that truly matter? Apply now and help us shape the energy world of tomorrow . Learn more about our Product & Tech team! Deine Position As a member of the B2C domain, you will build a virtual power plant leveraging our energy manager "Heartbeat", and continuously ship innovative energy market solutions to our customers. You will be responsible for developing scalable, robust backend services that enable seamless integration of our energy management solutions with various energy markets. Key responsibilities include: Work collaboratively with product managers, data engineers, and data scientists to understand problems, support discoveries, and create solutions our customers love Build and optimize backend services for VPP operations and energy market integrations Design and implement APIs and abstraction layers for seamless communication between different components of our energy market integration solutions Optimize backend services for scalability and support for a large number of connected users Create, implement, evaluate, and deploy software solutions to solve complex problems in a simplified way Foster a cul

About Us: Blockworks is an information platform that sits at the center of the crypto industry. We transform raw, complex data and facts into actionable research, trusted alpha-driven insights, and world-class events. The result is transparency and confidence. Blockworks connects investors and businesses in onchain capital markets. We give businesses a platform to earn trust and provide investors with the information they need to underwrite the asset class. Who You Are: You have a keen focus on backend and API development and Software engineering is your passion. You are a player-coach and a natural leader who understands the technical and human elements that go into great software design. You have a results-oriented attitude and a passion for delivering flawless releases and developing digital product pipelines (CI/CD pipelines). You have a proven track record facilitating engineering teams to increase productivity and quality. You're excited at the possibility of being on the ground floor of the design and development of backend strategies. You bring a passion for designing and maintaining scalable API services that handle large amounts of data elegantly. You love moving quickly in a fast-paced start-up, but you also bring intentionality, sustainability and scalability to your approach as an engineer. What You’ll Do: As a Senior Backend Engineer at Blockworks, you’ll design, build, and maintain the systems that power our products end-to-end. From high-performance APIs to database architecture, you’ll own the backend layer that makes everything else possible. You won’t just be handed requirements, you’ll help define them, scope projects, and make the architectural decisions that shape our technical foundation. Your work will directly impact our research platform ( blockworksresearch.com ) and our media site ( blockworks.co ; 1M+ monthly active users). Every day will look a little different, but in general, you will do things like: Architect, build, and ship backend

Synthesia is the world’s leading AI video platform for business, used by over 90% of the Fortune 100. Founded in 2017, the company is headquartered in London, with offices and teams across Europe and the US. As AI continues to shape the way we live and work, Synthesia develops products to enhance visual communication and enterprise skill development, helping people work better and stay at the center of successful organizations. Following our recent Series E funding round, where we raised $200 million, our valuation stands at $4 billion. Our total funding exceeds $530 million from premier investors including Accel, NVentures (Nvidia's VC arm), Kleiner Perkins, GV, and Evantic Capital, alongside the founders and operators of Stripe, Datadog, Miro, and Webflow. About the role You will focus on friction points around primarily backend issues for all teams in Engineering (90 Engineers). How should we do inter-service testing? Some teams are using monorepo, others aren’t. How can we bring overall stability up? Generally steering BE in the right direction. In the near future, standardising things across all of Engineering and bringing R&D teams (another 40 Engineers and Researchers) closer. You will have ownership of projects that span quarters, requiring you to have the ability to break a problem down into small steps that can be delivered and validated iteratively. You will evaluate your own work, leveraging our data pipeline and frameworks that we have established to understand the impact your features have on our commercial objectives and pivoting where necessary. You will consider the long-term direction of Engineering, making sure that we are developing the engineering capabilities that will allow us to stay ahead of the challenges we are likely to encounter in 12-18 months' time. You will work end-to-end, from our client application written in React to our monolithic backend written in Python, and lead projects that span across multiple teams. What we're looking

Principal Backend Engineer – Java Location: London (Hybrid) | Practice Area: Technology & Engineering | Type: Permanent Build scalable backend solutions that help shape the future of financial services. The Role Capco is growing our Engineering team, and we’re looking for experienced Principal Backend Engineers with strong Java skills and a passion for delivering innovative solutions in financial services. As a Principal Backend Engineer at Capco, you’ll contribute to high-impact, client-facing projects and work with cloud-native technologies across different domains within Financial Services & Energy. You’ll collaborate with talented engineers, contribute to architecture and engineering decisions, and have access to industry-leading learning and development opportunities. You’ll also use approved AI tools, automation and AI-enabled engineering workflows where appropriate to improve development speed, quality and productivity, while applying human judgement, responsible AI guardrails and appropriate review. What You’ll Do Build and deliver scalable backend services using Java 11, 17+, designing APIs and microservices for enterprise systems. Work across cloud platforms, particularly AWS, applying cloud-native deployment techniques and contributing to architecture and solution design. Develop robust automated test coverage across unit, component, integration, end-to-end and performance testing. Collaborate with clients, product managers and engineers in agile teams to design, deliver and troubleshoot large-scale distributed systems. Use approved AI tools, automation and AI-enabled workflows to support engineering activities such as development, testing, troubleshooting and documentation, with appropriate human review and responsible AI controls. What We’re Looking For Expertise in Java 11, 17+ and Spring Boot, with experience designing and delivering large-scale enterprise backend systems. Experience with cloud-native and distributed architectures, including m

About Us At LangChain, our mission is to make intelligent agents ubiquitous. We build the foundation for agent engineering in the real world, helping developers move from prototypes to production-ready AI agents that teams can rely on. We began as widely adopted open-source tools and have grown to also offer a platform for building, evaluating, deploying, and operating agents at scale. With $125M raised at Series B from IVP, Sequoia, Benchmark, CapitalG, and Sapphire Ventures, we’re at a stage where we’re continuing to develop new products, growth is accelerating, and all team members have meaningful impact on what we build and how we work together. LangChain is a place where your contributions can shape how this technology shows up in the real world. Today, our platform includes LangSmith (Observability, Evaluation, Deployment, Fleet, and Sandboxes), our open source frameworks (LangChain, LangGraph, and Deep Agents), and the newly launched LangSmith Engine for autonomous agent improvement. We have 100M+ monthly open source downloads, 6,000+ active LangSmith customers, and 5 of the Fortune 10 use LangSmith in production (+ 35% of the Fortune 500 overall), including teams at Klarna, Clay, Coinbase, Workday, Lyft, Cloudflare, Harvey, Rippling, Vanta, LinkedIn, Monday.com, Nvidia, and Bridgewater. About The Team The LangSmith team owns and builds LangChain's core platform for observability, evaluation, and production reliability of AI systems. From tracing and annotation to run rules, evaluations, and beyond, this team owns LangSmith end-to-end. If you want to define what great AI observability looks like at production scale, this is where that work gets done. About The Role We are looking for a Senior Backend Engineer to join us. In this role you will be building the backend systems that power LangChain’s observability and evals platform. You will work on the core services that allow developers to monitor and evaluate their AI applications at scale. While the focus is

We are looking for a Senior Backend Engineer to join the Subscriptions Mission. This team oversees the entire user journey on Spotify and ensures we engage with people in innovative ways, every step of the way. Our team grows Spotify’s audience by finding future listeners around the world and delivering the right value to them, at the right time. With research, product development, product design, engineering, and marketing all collaborating in one organization, we’re able to quickly create meaningful features and services for millions of people around the world, resulting in joyful, long-lasting relationships with Spotify. As a Senior Backend Engineer you will participate in building and maintaining the systems responsible for driving user conversion, retention and upsells together with other R&D teams, Marketing and Growth. The team is uniquely positioned to play a key role in a new effort to strengthen our platform capabilities in this area to support the rapidly growing business needs of the ever-changing product portfolio. We are moving towards a more user focused, contextual conversion, retention and upsell experience that is less manually operated, and more consistent across channels, using levers like machine learning and personalisation. We want to solve this through a platformised approach utilising new systems for decision-making on what we want users to see combined with a content management solution that can handle all the necessary complexities. What You'll Do Architect, develop and operate Java services that serve our users through the merchandising platform to enable cohesive and relevant conversion and upsell journeys. Collaborate with our squad and key internal partners to determine how to design scalable backend systems, data models and APIs that run on Google Cloud Platform. Be a technical leader, mentor and valued contributor in an autonomous, cross-functional agile squad, in close collaboration with other squads and b

About the job Senior Backend Engineer |100% Remote We are searching for a seasoned Sr Backend Engineer who will be responsible for developing and maintaining our backend systems, ensuring their efficiency, scalability, and reliability. The ideal candidate has a strong background in PHP and Java, with optional experience in Golang and Node.js. You should be well-versed in working with databases such as MongoDB, Redis, and Postgres, and have a solid understanding of cloud technologies, specifically AWS. Responsibilities Design, develop, and maintain backend systems and APIs to support our application's functionality. Collaborate with cross-functional teams, including front-end developers, product managers, and designers, to deliver high-quality solutions. Write clean, scalable, and well-documented code that adheres to industry best practices and coding standards. Perform code reviews and provide constructive feedback to peers to ensure code quality and consistency. Optimize and improve the performance of existing backend systems. Troubleshoot and debug production issues, providing timely resolutions. Stay up-to-date with emerging technologies and industry trends, identifying opportunities for innovation and improvement. Collaborate with DevOps teams to ensure smooth deployment and operation of backend services in the AWS cloud environment. Requirements Bachelor's degree in Computer Science, Engineering, or a related field (or equivalent work experience). 5-10 years of professional experience as a Backend Engineer. Strong proficiency in Java/Golang is a must. Experience with Node js is a plus. In-depth knowledge of database technologies, including MongoDB, Redis, and Postgres. Solid understanding of cloud computing platforms, particularly AWS. Familiarity with containerization technologies such as Docker and orchestration tools like Kubernetes. Proficiency in writing efficient and optimized SQL queries. Experience with version control systems, such as Git. Excellent pr

Why us? Insurify is one of the America’s fastest-growing MIT FinTech startups and has been recognized as one of Inc. 5,000’s fastest-growing private companies in America of 2023, 2022 and 2021, Forbes Fintech 50 List for 2023, 22, 21, Forbes Next Billion Dollar Startups of 2022 global and Top 100 InsurTech company. We’re a profitable company, that's changing the way millions of people compare, buy and manage insurance with artificial intelligence, technology, and superior product design. We are proud to be the largest online insurance distribution and comparison platform in the USA. Our company vision is to be recognized as the preeminent and most trusted digital agent for insurance comparison, purchase, and management. Our team is critical to achieving our vision and fostering the right culture is essential to our team’s success. How you will make an impact Work with our product team to architect and develop new features Optimize existing features using modern development techniques to improve speed and reliability Write comprehensive test suites that fortify our codebase Deploy to production often What you need to succeed 4+ years of experience building back ends applications using a modern web framework (we use Python + Django, Node.js) Experience analyzing code performance to identify optimization opportunities Experience writing unit and integration tests Experience with SQL and NoSQL DBs (we use MySQL, Redis, DynamoDB, Redshift) Fluent spoken and written use of English language It would be considered a plus: Experience with Apache Airflow or other task workflow systems Experience with data pipelines Infrastructure as Code and familiarity with AWS Frontend experience (we use React) Benefits 25 days annual leave Enhanced private medical, dental and vision insurance plans Yearly wellbeing budget or Multisport card Personal budget for learning and books Employee Assistance Program and other wellbeing

About Wolt At Wolt, we create technology that brings joy, simplicity and earnings to the neighborhoods of the world. In 2014 we started with delivery of restaurant food. Now we’re building the delivery of (almost) everything and you’ll find us in over 500 cities in 30 countries around the world. In 2022 we joined forces with DoorDash and together we keep on dreaming big and expanding across the globe. Working at Wolt isn’t always easy, but it’s definitely exciting. Here you’ll learn more, build more, and ship more than in most other companies. You’ll be challenged a lot, but also have a lot of fun on the way. So, if you’re a self-starter with drive and entrepreneurial spirit, this could be the ride of your life. As a Software Engineer in Global Retail, you'll shape how customers discover, browse, and buy retail products - apparel, beauty, electronics, auto parts and more - across Wolt, DoorDash and Deliveroo. Retail is a large growth opportunity for the business, and our mission is to be the most trusted and magical way to shop the brands and local stores customers love. You'll play a key role in making that real - from product discovery through to shopping experience in the apps millions of people use every day. You’ll join an evolving area where we are replacing and improving parts of the existing consumer apps, building specific retail journeys within large-scale B2C applications. This means working in a complex environment where multiple teams own different parts of the same app, and where strong technical judgment is needed to create consistency, quality and speed across teams. What You’ll Do As an engineer in our group, you’ll work on production-level microservices in Kotlin and Go, helping shape how Retail succeed with Wolt. You’ll have opportunities to: Design, build, and scale reliable systems that power Retail experiences. Work across the full development lifecycle – from business logic and testing to cloud infrastructure and data streaming. Collabo

Who Are We? Postman is the world’s leading API platform, used by more than 45 million+ developers and 500,000 organizations, including 98% of the Fortune 500. Postman is helping developers and professionals across the globe build the API-first world by simplifying each step of the API lifecycle and streamlining collaboration—enabling users to create better APIs, faster. The company is headquartered in San Francisco and has offices in Boston, New York, Austin, Tokyo, London, and Bangalore - where Postman was founded. Postman is privately held, with funding from Battery Ventures, BOND, Coatue, CRV, Insight Partners, and Nexus Venture Partners. Learn more at postman.com or connect with Postman on X via @getpostman. P.S: We highly recommend reading The "API-First World" graphic novel to understand the bigger picture and our vision at Postman. The Opportunity As a Senior Backend Engineer on the Cloud Platform team, you will play a key role in building the core systems and services that power Postman’s internal platform. You’ll help create new backend services that manage how we deploy, scale, and operate our infrastructure and product services, leveraging Java, Spring Boot, and Hibernate (JPA) on top of cloud-native technologies like Kubernetes, ArgoCD, Istio, and Terraform. This role is highly impactful: the systems you build will be used across Postman engineering, enabling faster delivery, better scalability, and a stronger developer experience. You’ll also have the opportunity to contribute to open source, shaping tools that extend beyond Postman’s boundaries. What You’ll Do Design and develop backend services in Java and Spring Boot to support Postman’s internal Cloud Platform. Architect new services that manage service deployment, lifecycle, and scaling across Kubernetes clusters. Implement GitOps workflows (ArgoCD) to support continuous delivery. Integrate with cloud-native tooling such as Istio, Helm, and Terraform. Apply strong soft

About the Role Together AI is building the Inference Platform that brings the most advanced generative AI models to the world. Our platform powers multi-tenant serverless workloads and dedicated endpoints, enabling developers, enterprises, and researchers to harness the latest LLMs, multimodal models, image, audio, video, and speech models at scale. If you get a thrill from optimizing latency down to the last millisecond, this is your playground. You’ll work hands-on with tens of thousands of GPUs (H100s, H200s, GB200s, and beyond), figuring out how to fully utilize every FLOP and every gigabyte of memory. You’ll collaborate directly with research teams to bring frontier models into production, making breakthroughs usable in the real world. Our team also works closely with the open source community, contributing to and leveraging projects like SGLang, vLLM, and NVIDIA Dynamo to push the boundaries of inference performance and efficiency. Shape the core inference backbone that powers Together AI’s frontier models. Solve performance-critical challenges in global request routing, load balancing, and large-scale resource allocation. Work with state-of-the-art accelerators (H100s, H200s, GB200s) at global scale. Partner with world-class researchers to bring new model architectures into production. Collaborate with and contribute to the open source community, shaping the tools that advance the industry. A culture of deep technical ownership and high impact — where your work makes models faster, cheaper, and more accessible. Competitive compensation, equity, and benefits. Responsibilities Build and optimize global and local request routing, ensuring low-latency load balancing across data centers and model engine pods. Develop auto-scaling systems to dynamically allocate resources and meet strict SLOs across dozens of data centers. Design systems for multi-tenant traffic shaping, tuning both resource allocation and request handling — including smart rate limiting and