Spring developer jobs in United Kingdom

We are looking for an exceptional Senior Java developer to join SpectrAxe — the first true all-to-all, anonymous FX options trading platform. If you have very strong middle-tier development skills (and/or full-stack experience with React) and are ready to take the next step in your career — where your work has real impact in a fast-moving, startup environment — we'd love to hear from you. Knowledge of FX options is advantageous but not essential. If you bring strong development skills, we’ll support you in learning the financial and trading aspects of the platform. This is a chance to help shape the evolution of a live trading platform used by institutional clients globally. Get in touch to discuss the role. You’ll Be Working On: • Designing and developing Java-based applications & microservices, • Using algorithms, Collections, Streams, and concurrency in Java 11+, • Building services with the Spring Framework, • Writing robust tests with JUnit4/5 & Mockito, • Developing with PostgreSQL, optimising for performance, • Using Docker & CI/CD tools to deliver production-quality releases We’re Looking For: Strong Java 11+ skills (Collections, Streams, Concurrency) 6+ years experience Solid understanding of algorithms & data structures Spring Framework experience JUnit & Mockito testing experience PostgreSQL expertise Familiarity with Docker & CI/CD (Jenkins, GitHub Actions, etc.) Bonus Points For: • Financial services , trading systems background, • Messaging systems (RabbitMQ, Kafka), • AWS or other cloud platforms, • TypeScript, RxJS, GWT, React, • Low-latency system design experience What we offer • Competitive salary & bonus, • Hybrid working or fully remote possible, • Work on a cutting-edge fintech platform with global impact, • Collaborative, innovative, and supportive team environment

London or Manchester (Hybrid) | £50,000 – £80,000 + Equity About us At the forefront of using investment portfolios as security for access to credit, Firenze is emerging as the category defining leader in what is known as “Lombard lending”. We already work with some of the UK’s leading wealth management firms to unlock access to what has historically only been available to UHNW clients of private banks. Backed by top tier investors, Firenze is now scaling the team to continue to ensure our credit infrastructure is underpinned by innovation, cutting-edge technology, and an unwavering commitment to driving client outcomes. Role Overview As a Full Stack Software Engineer, you’ll design, build, and deliver customer-facing features across our greenfield platform. You’ll work end-to-end—crafting TypeScript frontends and robust Java back-ends—while learning from experienced engineers and contributing to a modern, scalable architecture. This is a hands-on role with plenty of opportunity to develop your technical depth, gain exposure to DevOps, cloud, and observability practices, and help define how we build software at Firenze. With no legacy systems, you’ll be shaping our platform from the ground up and growing alongside a team that values mentorship, learning, and engineering excellence. Key Responsibilities • Feature Delivery: Collaborate with senior engineers to deliver new features from design to production., • Back-End Engineering (Java): Build APIs and microservices using Java (Spring Boot, Micronaut, or Quarkus), with guidance on best practices for performance and reliability., • Front-End Engineering (TypeScript – Nuxt/Vue): Develop responsive, accessible UIs with strong component and state management., • Data & Integration: Work with PostgreSQL, caching (Redis), and messaging (Kafka/SQS) — learning how to design resilient data flows., • Quality & Testing: Contribute to our testing culture (JUnit, Playwright, CI pipelines) and learn how to scale reliable delivery., • Performance & Observability: Gain hands-on experience with monitoring tools and learn how to build observable systems from day one., • Documentation & Developer Experience: Help create clear technical docs and reusable tooling that makes development smoother for everyone., • Cross-Functional Collaboration: Partner with product, design, and experienced engineers to break down work, estimate effectively, and deliver iteratively. Requirements • Experience: 3+ years of professional software engineering, including full-stack work on production systems (fintech or startup experience a plus)., • Java Proficiency: Hands-on experience building APIs/microservices in modern Java (Spring Boot or similar)., • TypeScript & Vue: Solid experience developing production-grade web apps with TypeScript and Vue/Nuxt., • Web Fundamentals: Good grasp of HTML/CSS, accessibility (WCAG), and secure web app design., • Databases & Messaging: Familiarity with PostgreSQL and at least one of Redis, Kafka, or SQS., • Testing Mindset: Comfortable writing and running tests; familiar with CI pipelines (GitHub Actions, GitLab CI)., • Cloud & Containers: Exposure to AWS or another cloud platform and Docker. (Kubernetes or ECS a plus.), • Growth Mindset: Curiosity to learn new technologies, seek feedback, and develop alongside experienced teammates. Bonus Skills • Interest in event-driven or distributed systems (Kafka, RabbitMQ, SQS)., • Exposure to DDD, CQRS, or hexagonal architectures., • Experience with observability tools (OpenTelemetry, Prometheus, Grafana)., • Familiarity with multi-tenant SaaS, RBAC, or performance tuning (JVM, SQL). Why Join Us? • Learn from experienced engineers: Work side-by-side with senior teammates who value teaching, pair programming, and open design discussions., • Accelerate your growth: Gain exposure to architecture, DevOps, security, and observability while contributing to production systems early on., • Impact: Shape a greenfield fintech platform with real business influence and visibility., • Collaboration: Join a supportive, high-performing team that values curiosity, innovation, and shared ownership., • Career Development: Clear progression opportunities as Firenze scales — move towards senior or specialist roles with mentorship and hands-on experience., • Competitive Salary (£50,000-£80,000) depending on experience, plus equity participation. You’ll be part of a hybrid team based in London or Manchester, combining the best of in-person collaboration with the flexibility of remote work. You’ll join a culture that values continuous learning, feedback, and building things the right way — not the fast way.

Java Developer - £100,000 - £140,000 – London/Hybrid Java 21 | Microservices | Spring boot | AWS | Startup | Scaleup | Fintech | Banking | Amazon Web Services | PostgreSQL | Are you a Java Developer who wants to have a voice within the team? Maybe you want to join a fast growing company with lots of progression. If so I have a role for you. Opus have partnered with a VC Backed Fintech start-up who are looking to grow their London office. They are growing quickly so are looking for Java Developers of all levels from Mid – Tech Lead to join the team. They are currently about 100 people strong and looking to double this within the next 12 months. As a Developer you will be building and maintaining high performing back end systems. The sort of projects you will be involved in is building API’s, developing microservices and upgrading existing systems. Experience needed – • Java 21, • TDD, • AWS They’re also looking for people who have worked within a fast paced Startup/scaleup company. What is in it for you? • Hybrid working(1-2 days a week in the office), • Equity, • 25 days annual leave, • Solid pension, • And more If you’re interested please apply or send your CV to to apply. Sponsorship isn’t available. Java 21 | Microservices | Spring boot | AWS | Startup | Scaleup | Fintech | Banking | Amazon Web Services | PostgreSQL |

Senior Java Developer - Java, Springboot & AWS – paying up to £650/day (Inside IR35) – Hybrid (2x a week - London) – 6 month contract Our client is seeking a Senior Java Developer who is passionate about clean code, cloud-native systems, and building technology that makes a real impact. This is a unique opportunity to work in an agile, high-ownership engineering culture. What You'll Be Doing: • Build and scale backend services using Java and Spring Boot, • Shape a modern microservices architecture for a high-availability platform, • Deploy and manage services in AWS with Kubernetes (EKS), • Design, implement, and own features end-to-end from discovery to production support, • Advocate for clean code, automated testing, and CI/CD best practices, • Mentor other engineers and contribute to a culture of knowledge-sharing, • Collaborate with cross-functional teams including product, design, and infrastructure, • Troubleshoot complex issues and help ensure system reliability and performance What You’ll Bring: • Strong backend engineering experience, especially in Java and Spring, • Deep understanding of distributed systems and microservices, • Hands-on experience with AWS, Kubernetes, Docker, and Terraform, • Familiarity with CI/CD pipelines and testing best practices, • Solid SQL and relational database skills, • Ownership mentality, with strong problem-solving skills and attention to detail, • Experience with Node.js or frontend technologies like React, • Familiarity with Grafana, TeamCity, or observability tooling, • Interest or experience in financial services, compliance, or digital banking If you're excited to work in a fast-paced environment where engineers lead innovation - we’d love to hear from you.

Java Engineer - Java Developer - Software Engineer - PostGres - Kubernetes - Kafka - TDD - 6-Month Contract - Hybrid (2 days on site, London) - Day Rate: Up to £650 (Inside IR35) Join a high-performing engineering team working on large-scale, high-availability systems used by millions. This role offers the chance to build and enhance complex backend services in a modern, cloud-native environment. What you'll be doing: * Designing and developing performant, scalable backend systems using Java (up to Java 21) • Working with PostGres Building microservices with Spring Boot and related frameworks * Developing and maintaining RESTful APIs and event-driven systems * Writing clean, testable code and following TDD principles with a strong focus on unit testing * Working closely with DevOps, Product, and QA teams to deliver high-quality solutions * Deploying and supporting services in AWS with tools such as Lambda, ECS, S3, and CloudFormation, along with Kubernetes for container orchestration What we're looking for (Requirements): * Strong commercial experience with Java and Spring Boot * Proven experience designing and maintaining microservices * Hands-on experience working with PostGres * Background working in cloud environments, ideally AWS * Knowledge of Kubernetes and containerised systems * Familiarity with CI/CD pipelines and automation tooling * Strong understanding of software testing, TDD, and unit testing * Comfortable working within Agile teams * Clear communication skills and the ability to collaborate effectively in a hybrid setup If you are an experienced Java Engineer keen to join a modern engineering environment and work on systems that operate at scale, please get in touch for more information.

New Contract Role Lead Full Stack Java Developer £600 Outside ir35 Remote 12/1 Start 31/3 Finish Skills Java NodeJsKotlin, Spring BootTerraform KubernetesDockerRequirements SC Clearance Lead Experience.

Please find the Job Description:- Role: Senior Java Developer Location: Farnborough/UK (Hybrid) Hybrid mode of work Exp range:8+ years Mandatory skills: Java Springboot, Java 17/11, AWS, Pipeline, Financial domain, Spark. JD: Java Tech Lead job involves leading and mentoring a Java development team, analyzing and designing software solutions, ensuring adherence to best practices and coding standards, and collaborating with product managers and other stakeholders to deliver high-quality products for the financial services industry. Key responsibilities include coding, debugging, and maintaining applications, conducting code reviews, troubleshooting complex technical issues, and driving innovation with new technologies. Key Responsibilities: • Team Leadership: Lead, mentor, and guide a team of Java developers in the development lifecycle. • Project Management: Oversee Java development projects from conception to completion, ensuring alignment with project requirements and timelines. • Technical Expertise: Design, develop, test, debug, implement, and maintain software applications using core Java technologies. • Quality Assurance: Ensure high-quality code through code reviews, adherence to coding standards, and implementation of best practices. • Collaboration: Work closely with product managers, stakeholders, and other technical and business groups to define and deliver solutions. • Innovation: Stay updated on emerging Java technologies, propose new solutions, and contribute to innovation initiatives. • Troubleshooting: Analyze logs, resolve complex technical issues, and perform performance tuning. • Documentation: Write technical specifications and other documentation for new and existing applications. Qualifications: • Education: Bachelor's degree in Computer Science, Engineering, or a related field., • Experience: Proven extensive experience as a Java developer, often with a minimum of 5 years in Java programming., • Leadership Skills: Demonstrated leadership and team management experience., • Technical Skills: Proficiency in Java and its related frameworks (e.g., Spring Boot, Maven, Gradle), knowledge of web services, and understanding of database technologies like SQL/Oracle are often required., • Soft Skills: Excellent communication, problem-solving, analytical, and interpersonal skills are essential for collaborating with diverse teams and stakeholders., • Industry Knowledge: Understanding of the financial services industry and its specific systems is a significant advantage.

Job Title: Java Developer (Electronic Trading Platform - FX) Contract Type: Outside IR35 Location: London Day Rate: Up to £950 per day Flexible Hybrid working: 1-2 days a week in London City offices Client: Prestigious Investment Bank Industry: Investment Banking Duration: 12 months +. Also open to contract to permanent conversions Overview: We are seeking an experienced Java Developer to join a high-profile investment banking client in London on a contract basis. The successful candidate will work on an Electronic Trading Platform for the FIC business. This is an exciting opportunity to contribute to the development and integration of advanced trading technologies in a prestigious and fast-paced environment. Our client are in the process of a large multi year E-Trading platform replacement. Starting in FX and FIC and then getting rolled out across Capital markets and all asset classes. You’ll have the flexibility to manage your work activities within a hybrid work arrangement where you’ll spend 1 per week on-site, while other days will be remote. Desired technical Skills: • Java (Core & Advanced): Strong proficiency in Java, including multi-threading, collections, and concurrency., • FX Trading Systems: Experience developing, maintaining, or supporting electronic foreign exchange (E-FX) trading platforms., • Messaging Protocols: Familiarity with FIX protocol, MQ, JMS, or similar messaging solutions., • API Development: Experience with RESTful and/or SOAP web services., • Low Latency Programming: Understanding of techniques for minimizing latency in trading applications., • Spring Framework: Proficiency with Spring Boot, Spring MVC, and related technologies., • Database Technologies: Strong SQL skills; experience with relational databases (e.g., Oracle, SQL Server, PostgreSQL) and/or NoSQL solutions., • Distributed Systems: Understanding of distributed computing concepts and technologies (e.g., microservices, caching, clustering)., • Testing Frameworks: Experience with JUnit, Mockito, or similar testing tools., • CI/CD: Familiarity with continuous integration and deployment tools (e.g., Jenkins, TeamCity, Git) Desired Domain Knowledge: • FX, Rates, SSA, Credit, • Order Management: Knowledge of order routing, execution, and trade booking flows., • Risk Management: Familiarity with pre-trade and post-trade risk controls in electronic trading Soft Skills: • Excellent communication and interpersonal skills to work effectively with both business and technology teams., • Ability to thrive in a fast-paced, high-pressure environment., • Strong sense of ownership and accountability for delivering results.

Java Developer - £100,000 - £140,000 – London/Hybrid Java 21 | Microservices | Spring boot | AWS | Startup | Scaleup | Fintech | Banking | Amazon Web Services | PostgreSQL | Are you a Java Developer who wants to have a voice within the team? Maybe you want to join a fast growing company with lots of progression. If so I have a role for you. Opus have partnered with a VC Backed Fintech start-up who are looking to grow their London office. They are growing quickly so are looking for Java Developers of all levels from Mid – Tech Lead to join the team. They are currently about 100 people strong and looking to double this within the next 12 months. As a Developer you will be building and maintaining high performing back end systems. The sort of projects you will be involved in is building API’s, developing microservices and upgrading existing systems. Experience needed – • Java 21, • TDD, • AWS They’re also looking for people who have worked within a fast paced Startup/scaleup company. What is in it for you? • Hybrid working(1-2 days a week in the office), • Equity, • 25 days annual leave, • Solid pension, • And more If you’re interested please apply or send your CV to to apply. Sponsorship isn’t available. Java 21 | Microservices | Spring boot | AWS | Startup | Scaleup | Fintech | Banking | Amazon Web Services | PostgreSQL |

We are looking for an exceptional Senior Java developer to join SpectrAxe — the first true all-to-all, anonymous FX options trading platform. If you have very strong middle-tier development skills (and/or full-stack experience with React) and are ready to take the next step in your career — where your work has real impact in a fast-moving, startup environment — we'd love to hear from you. Knowledge of FX options is advantageous but not essential. If you bring strong development skills, we’ll support you in learning the financial and trading aspects of the platform. This is a chance to help shape the evolution of a live trading platform used by institutional clients globally. Get in touch to discuss the role. You’ll Be Working On: • Designing and developing Java-based applications & microservices, • Using algorithms, Collections, Streams, and concurrency in Java 11+, • Building services with the Spring Framework, • Writing robust tests with JUnit4/5 & Mockito, • Developing with PostgreSQL, optimising for performance, • Using Docker & CI/CD tools to deliver production-quality releases We’re Looking For: Strong Java 11+ skills (Collections, Streams, Concurrency) 6+ years experience Solid understanding of algorithms & data structures Spring Framework experience JUnit & Mockito testing experience PostgreSQL expertise Familiarity with Docker & CI/CD (Jenkins, GitHub Actions, etc.) Bonus Points For: • Financial services , trading systems background, • Messaging systems (RabbitMQ, Kafka), • AWS or other cloud platforms, • TypeScript, RxJS, GWT, React, • Low-latency system design experience What we offer • Competitive salary & bonus, • Hybrid working or fully remote possible, • Work on a cutting-edge fintech platform with global impact, • Collaborative, innovative, and supportive team environment

Security Cleared Senior Java Developer. You will be responsible for designing, coding, reviewing, and unit testing applications in the Java ecosystem. Solid hands-on experience with Java 8, Spring, Maven, Git, and JUnit.

Fidessa Developer - Java/Spring - sought by investment bank based in London - Contract - Hybrid.Develop and customise the Fidessa cash equities order management systems for US and Canadian markets.Translate business requirements into technical solutions using Fidessa and Java.Collaborate with global

Job Title: Java Developer Location: UK Experience: 2–5 years Education: Bachelors in Science (IT/Computer Science/Engineer) Employment Type: Full-Time UK based candidates only. Job Summary: We are seeking an experienced Java Developer with 2 to 3 years of hands-on experience in building applications using Java, Spring Boot, and Microservices architecture. The ideal candidate should also have a basic understanding of JUnit for testing and cloud platforms. Key Responsibilities: • Design, develop, and maintain backend services using Java and Spring Boot, • Build and maintain microservices and REST APIs, • In-depth experience in building RESTful APIs and microservices using Spring Boot., • Proficient in using Spring Boot starters, auto-configuration, and Spring Security., • Integrated Spring Data JPA with Spring Boot applications and handled database migrations using tools like Flyway or Liquibase., • Experienced in working within Agile/Scrum environments, participating in daily stand-ups, sprint planning, retrospectives, and backlog grooming., • Familiar with Agile tools such as JIRA, Confluence, or Azure DevOps for tracking stories, tasks, and sprint progress., • Actively contributed to sprint ceremonies and ensured timely delivery of features aligned with sprint goals and definition of done., • Experience integrating with databases, Kafka, or third-party APIs using Spring Boot modules., • Write unit and integration tests using JUnit, • Collaborate with DevOps and QA teams to ensure cloud deployment and testing, • Debug and resolve technical issues across the application stack, • Implement best practices in coding, testing, CI/CD, and security., • Hands-on experience managing project dependencies and build lifecycles using Maven and/or Gradle., • Expertise in configuring multi-module Java projects with custom build profiles and plugins., • Familiar with automating build, test, and deployment workflows using Maven/Gradle in CI/CD pipelines., • Proficient in Git version control, including branching, merging, rebasing, and resolving conflicts., • Worked in teams using Git-based workflows like Git Flow or Feature Branching., • Experience using Bitbucket for source code management, pull requests, code reviews, and repository administration., • Strong knowledge of SQL for querying and managing relational databases like MySQL, PostgreSQL, or Oracle., • Skilled in writing complex joins, subqueries, stored procedures, and performance tuning., • Experience with integrating SQL queries within Java applications using JDBC, JPA, or Spring Data JPA., • Extensive experience in unit testing Java applications using JUnit 4/5., • Skilled in writing parameterized tests, assertions, and test lifecycle hooks. Required Skills & Experience: • 2–3 years of strong hands-on experience with Java and Spring Boot, • Proven experience in developing and deploying microservices, • Proficient in using Spring Data JPA for ORM (Object-Relational Mapping) and seamless integration with relational databases., • Deep understanding of entity relationships (OneToMany, ManyToOne, etc.), lazy/eager loading, and cascade types., • Familiarity with JUnit for writing and executing test cases, • Basic understanding of cloud platforms like AWS, Azure, or GCP, • Strong knowledge of RESTful APIs, JSON, and HTTP, • Experience with version control tools like Git, • Experienced in working within Agile/Scrum environments., • Familiar with Agile tools such as JIRA, Confluence, or Azure DevOps for tracking stories, tasks, and sprint progress. Nice to Have: • Exposure to CI/CD tools like Jenkins, GitLab CI/CD, etc., • Knowledge of Docker, Kubernetes, or any container orchestration, • Experience with message brokers like Kafka or RabbitMQ Educational Qualification: Bachelor’s degree in Computer Science, Information Technology, or related field

A Security Cleared Senior Java Developer is needed to work with a global technology organisation providing software and digital solutions that help public sector and regulated organisations deliver essential services to millions of people worldwide. Hands-on experience with Java 8, Spring, Maven, Gi

Java Developer / Software Engineer (Java AWS Kafka) London / WFH to £90k Are you a bright, ambitious Java technologist who enjoys building systems from scratch? You could be progressing your career at a global, prime broker that is replacing the legacy infrastructure used across capital markets with a new cloud-native clearing and custody system, designed for today's complex global markets. The company is experiencing great success in the US and is expanding into the UK. As a Java Developer you will join a small team responsible for building a brand new Futures Trading platform for the UK, primarily using Java with a focus on backend development but also with some React UI work. You'll be working on complex and challenging, highly available mission critical systems in collaboration with Product Managers to understand and define new features and coordinating with other developers with the goal of writing software as one. You'll be supported to learn and develop your skills by the senior engineer. Location / WFH: You'll join a small, highly talented and collaborative team in the London, City office three days a week with flexibility to work from home the other two. About you: • You are degree educated in Computer Science or closely related discipline, • You have commercial backend Java development experience including Spring, Spring Boot, microservices, • You have a good knowledge of AWS, • You also have an appreciation of UI development with TypeScript / React, • You take in pride in producing clean, high quality code, • You're familiar with modern software engineering tools such as Kafka, Kubernetes, MongoDB, • You are collaborative and motivated to learn about financial markets and advance your technical knowledge What's in it for you: As a Java Developer / Software Engineer you receive a competitive package: • Salary to £90k, • Pension, • Hybrid working, • Influential role at a growing company with excellent career progression and interesting work Apply now to find out more about this Java Developer / Software Engineer opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal opportunities employer whose people come from all walks of life and will never discriminate based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.

Senior Software Engineer (Fullstack Developer) I am currently recruiting for a Senior Software Engineer to join a leading organisation based in the South West. As a Software Engineer, you will be responsible for the design, development and deployment of high quality software solutions. This role will involve the mentoring of junior engineers as well as collaborating with a variety of cross functional teams and driving the adoption of best practices in software development Salary - £68,400.00 per annum Location - Fully Remote Working Key Responsibilities Design, build, and maintain software solutions that are reliable, secure, well-tested, and scalable. Contribute technical input to system and solution design in line with agreed objectives. Support and guide less-experienced team members, encouraging skill development and good engineering practices. Work collaboratively with multidisciplinary teams to ensure solutions meet agreed requirements. Improve and maintain automated build, test, and deployment processes to support efficient delivery. Review code and provide constructive feedback to support quality and consistency. Investigate and resolve technical issues to maintain stable and efficient systems. Keep up to date with relevant technologies and propose improvements where appropriate. Promote improvements in coding practices, testing approaches, and documentation. Participate in early planning and discussion phases, offering technical perspectives. Follow established development processes and contribute to continuous improvement efforts. Communicate technical ideas clearly to audiences with varying technical backgrounds Key Skills Proven experience in full-stack software development, including design, development, testing, and deployment Significant hands on experience with Java, Spring Boot and Microservices. Strong understanding of Agile and DevOps practices, with a focus on continuous integration and delivery. Some proficiency in one or more programming languages (e.g., Python, Java, JavaScript) and experience with software architecture patterns. Experience with cloud platforms (e.g., AWS, Azure, GCP) and infrastructure as code. Familiarity with CI/CD pipelines, automated testing, and modern software development practices. Knowledge of technologies such as microservices, containerisation (Docker, Kubernetes), or serverless architecture. Awareness of principles like well architected and secure by design If this is something you would be keen on applying for, please email me directly at or alternatively, hit apply! Reasonable Adjustments: Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients. If you need any help or adjustments during the recruitment process for any reason , please let us know when you apply or talk to the recruiters directly so we can support you. TPBN1_UKTJ

Software Engineer, Java - AI Training (Freelance, Remote). Software Engineer / Quant Research Developer - Trading Applications (Python/Java). Software Engineer 4 - Java, Spring AI, Python, LangChain, LangGraph.

Develop Java applications using Java 11+ (Java 17 preferred) and Spring/Spring Boot, with experience in microservices and AWS. Essentials - Java 17 version preferred, Springboot, Microservices, AWS, Maven, Gradle, JPA, JMS, Junit, Bamboo, Stash, IntelliJ. As Macquarie has small teams, developer who