Experience working with many stakeholders to review and agree on a complex system design. Hands-on experience with another statically compiled language (., Golang, Rust, C++). Experience with gRPC and Google Protocol Buffers. Experience with caching technologies (., Redis). Experience with infrastructure as code software (., Terraform). Certified Kubernetes and public cloud knowledge (., CKAD, AWS certifications More ❯
and implement scalable solutions within our 40+ microservice ecosystem, ensuring proper service boundaries and communication patterns Cross-stack development : Work across our full technology stack - from GraphQL APIs and gRPC services to mobile apps and infrastructure-as-code Code quality & mentorship : Drive code quality standards, conduct thorough code reviews, and mentor junior engineers on best practices and architectural decisions Product … foster a culture of continuous learning and development, so you will have opportunity to get to grips with new technologies. Backend & Microservices Go - Primary language for our 40+ microservices gRPC & Protocol Buffers - Inter-service communication GraphQL - Client-facing API gateway MySQL, PostgreSQL, Redis - Data storage and caching Google Cloud Pub/Sub - Event-driven architecture Frontend & Mobile TypeScript - Primary frontend More ❯
etc.) TDD, CI/CD, and agile delivery experience Ability to deliver from design to deployment Bonus Points: Experience in Front Office, Risk, or Pricing within investment banking Kafka, GRPC, Docker/Kubernetes, cloud-native development Knowledge of risk sensitivities and front-to-back processes Join a leading global financial group and help shape the next generation of trading and More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Pontoon
etc.) TDD, CI/CD, and agile delivery experience Ability to deliver from design to deployment Bonus Points: Experience in Front Office, Risk, or Pricing within investment banking Kafka, GRPC, Docker/Kubernetes, cloud-native development Knowledge of risk sensitivities and front-to-back processes Join a leading global financial group and help shape the next generation of trading and More ❯
algorithms, data structures, concurrency) Proven track record delivering applications from design to production Desirable Experience: Background in investment banking, particularly Risk or Pricing domains Cloud-native development (EKS, Docker, GRPC, Redis, Prometheus, etc.) Kafka, event-driven systems, and stateful workflow orchestration Familiarity with financial instruments and risk sensitivities This is a fantastic opportunity to work on high-impact systems in More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Pontoon
algorithms, data structures, concurrency) Proven track record delivering applications from design to production Desirable Experience: Background in investment banking, particularly Risk or Pricing domains Cloud-native development (EKS, Docker, GRPC, Redis, Prometheus, etc.) Kafka, event-driven systems, and stateful workflow orchestration Familiarity with financial instruments and risk sensitivities This is a fantastic opportunity to work on high-impact systems in More ❯
based device drivers Some Golang services, potentially more as we scale Typescript with React SQL and NoSQL databases: PostgreSQL, Couchbase, DynamoDB Event-driven architecture, employing technologies such as Kafka, gRPC and Protobuf for event definitions Solver technology and algorithms to drive our workflow scheduling solver engine Deployment on AWS to IoT Greengrass, ECS, Lambda and EKS, with infrastructure managed via More ❯
in writing code and building POCs, using JavaScript/TypeScript, React, and Node.js or an equivalent modern web technology. Expert in web service standards and related patterns (REST, SOAP, gRPC, etc). Additional Requirements: Solid understanding of software engineering principles and agile software development methodologies, as well as a working knowledge of SQL and NoSQL databases. Must have experience working More ❯
a day. About you You have a strong passion for front end development and user experience. You have commercial experience working with NextJS using protocols such as GraphQL and gRPC in a production environment. You're familiar with accessibility standards and understand how to build inclusive user interfaces. You've seen projects through the entire development lifecycle, from ideation to More ❯
A positive attitude and a passion for knowledge sharing. Interest in fintech, markets, and trading. Knowledge or high interest in tools like Java, event-driven architectures (AMQP or similar), gRPC, service meshes, etc. WHO WE ARE: Opportunity to innovate in a fast-paced startup environment with industry leaders. A learning environment with a professional development budget. An inclusive culture respecting More ❯
in developing interactive products with realtime technologies (e.g. Websocket) Experience with AWS services (S3, EC2, RDS, DynamoDB, ElastiCache etc) Working basic knowledge of infra technologies and processes (deployment, contracts, gRPC etc) to co-design solutions with our other engineers Working knowledge of microservices architecture Working knowledge of distributed event stream platforms for high-performance data pipelines (e.g. Kafka etc) What More ❯
engineers, drive technical excellence, and contribute to a strong engineering culture ️ Our Tech Stack Services are written in Go, deployed in AWS ECS and communicate with our app with gRPC Our app is written in Dart with Flutter and is available on both Android and iOS Our NALA for Business product is web-only and written in React and TypeScript. More ❯
City of London, London, United Kingdom Hybrid / WFH Options
La Fosse
This is a hands-on engineering role with strong product ownership and daily interaction with front-office users. What You’ll Do Design, implement, and maintain scalable HTTP/GRPC services in Rust and Python Develop and optimise data pipelines, databases, and schemas (Postgres, ClickHouse) Build intuitive, real-time UIs using Python and React Translate complex financial logic into accurate … re Looking For Strong engineering fundamentals and commercial experience delivering production systems Proficient in at least two of: Rust, Python, React, or SQL/Postgres Experience building APIs (REST, gRPC), microservices, or distributed systems Interest or background in financial systems, trading, or risk (bonus, not required) Experience with cloud infrastructure (especially AWS, Kubernetes) is a plus Fast learner, pragmatic problem More ❯
This is a hands-on engineering role with strong product ownership and daily interaction with front-office users. What You’ll Do Design, implement, and maintain scalable HTTP/GRPC services in Rust and Python Develop and optimise data pipelines, databases, and schemas (Postgres, ClickHouse) Build intuitive, real-time UIs using Python and React Translate complex financial logic into accurate … re Looking For Strong engineering fundamentals and commercial experience delivering production systems Proficient in at least two of: Rust, Python, React, or SQL/Postgres Experience building APIs (REST, gRPC), microservices, or distributed systems Interest or background in financial systems, trading, or risk (bonus, not required) Experience with cloud infrastructure (especially AWS, Kubernetes) is a plus Fast learner, pragmatic problem More ❯
Native, with infrastructure powered by Google Cloud, Vercel, AWS and other cloud-native platforms. Architecture Design: Choose the right tools for the job. From monoliths to microservices, REST to gRPC, Docker to Kubernetes, your architectural decisions will shape maintainable, performant systems. API Expertise: Solid experience designing and consuming REST and gRPC APIs, handling auth flows, and building robust interfaces between … English, written and spoken. Proficiency with TypeScript, Next.js, Node.js and React Native. Experience deploying to Google Cloud, Vercel, or other cloud providers. Comfort working across REST, WebSockets, GraphQL, or gRPC APIs. Ability to architect and maintain scalable, secure systems with a clean codebase. Experience working with CI/CD pipelines, version control (Git), and Agile methodologies. Organised, detail-oriented, and More ❯
+ equity We love Go, HTTP, gRPC and containers! Come and join our backend team and design, build and support APIs that are requested tens of millions of times per day as well as internal tools that keep our community safe and our business efficient. We run a modern containerised stack in AWS using a mixture of database technologies (MySQL … common problems. Tackling challenging production issues as part of a supportive on-call team. Building internal tools to support your colleagues. Technology we love Go, Python, PHP Protocol buffers, gRPC Node, Typescript MySQL, Redis Elasticsearch, DynamoDB Containerisation, Lambda Why join Muzz? We're a profitable Consumer Tech startup, backed by Y Combinator (S17) and based in London. Join our fast More ❯
+ equity We love Go, HTTP, gRPC and containers! Come and join our backend team and design, build and support APIs that are requested tens of millions of times per day as well as internal tools that keep our community safe and our business efficient. We run a modern containerised stack in AWS using a mixture of database technologies (MySQL … common problems. Tackling challenging production issues as part of a supportive on-call team. Building internal tools to support your colleagues. Technology we love Go, Python, PHP Protocol buffers, gRPC Node, Typescript MySQL, Redis Elasticsearch, DynamoDB Containerisation, Lambda Why join Muzz? We're a profitable Consumer Tech startup, backed by Y Combinator (S17) and based in London. Join our fast More ❯
NoSQL/Postgres Familiarity with CI/CD tools such as Jenkins and Git Clear communicator with strong teamwork and problem-solving skills Desirable Skills: Experience with Kafka, GraphQL, gRPC, Docker Test-driven development (TDD/BDD) Agile methodologies (Scrum, Kanban, SAFe) Exposure to cloud-native patterns and services If you're passionate about building high-performing Back End systems More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Salt Search
NoSQL/Postgres Familiarity with CI/CD tools such as Jenkins and Git Clear communicator with strong teamwork and problem-solving skills Desirable Skills: Experience with Kafka, GraphQL, gRPC, Docker Test-driven development (TDD/BDD) Agile methodologies (Scrum, Kanban, SAFe) Exposure to cloud-native patterns and services If you're passionate about building high-performing backend systems in More ❯
s degree in computer science or a related field 6+ years of experience as a Software Engineer Extensive experience in Python Proven experience working with RESTful APIs and OpenAPI, gRPC, and Protobuf, with knowledge of their design best practices and common libraries Proven experience interfacing with AI projects, with a focus on computer vision and geometry Proven experience in production. More ❯
NoSQL/Postgres Familiarity with CI/CD tools such as Jenkins and Git Clear communicator with strong teamwork and problem-solving skills Desirable Skills: Experience with Kafka, GraphQL, gRPC, Docker Test-driven development (TDD/BDD) Agile methodologies (Scrum, Kanban, SAFe) Exposure to cloud-native patterns and services If you're passionate about building high-performing backend systems in More ❯
architecture Hands-on experience working on complex, data-intensive applications A product-focused mindset and familiarity with working in technology-driven organisations or start-ups Experience with Kafka, Cassandra, gRPC, and microservices architecture will also be beneficial, as well as experience contributing to open-source projects If you're a Senior Go Developer looking for a fast-paced, collaborative contract More ❯
pipelines Preferred qualifications • Experience with Server-Driven UI • Experience with Web Assembly (WASM), Service Workers and Progressive Web Apps • Experience with Go services deployed to Kubernetes • Experience with Microservices, gRPC, containerisation and Event-driven architectures. • Some experience managing Cloud resources, infrastructure as code, and site reliability engineering. We are an equal opportunity employer and value diversity at our company. We More ❯
pipelines Preferred qualifications • Experience with Server-Driven UI • Experience with Web Assembly (WASM), Service Workers and Progressive Web Apps • Experience with Go services deployed to Kubernetes • Experience with Microservices, gRPC, containerisation and Event-driven architectures. • Some experience managing Cloud resources, infrastructure as code, and site reliability engineering. We are an equal opportunity employer and value diversity at our company. We More ❯
