Remote Backend Developer jobs open to United Kingdom.

5 years of experience, Distributed systems expertise, Performance optimization, Large-scale data platforms, Data pipeline architecture, Observable systems building, Search platform experience (Vespa, Elasticsearch, Solr)

AlphaSenseAlphaSense is a New York City-based B2B fintech platform specializing in AI-driven market intelligence and search solutions for financial institutions and top companies globally.

Rust

LLM tooling, Rust, Go, Static analysis, Program analysis, Taint analysis, Application security, SAST rules, Architecture definition, Mentoring engineers

GitLabGitLab provides a DevSecOps platform for planning, building, securing and delivering software.

Go · Kubernetes

5+ years backend, Golang (or fast ramp-up), public API design, Kubernetes

ChainguardChainguard supplies hardened open-source containers, libraries, and packages that help organizations reduce software supply-chain risk.

Backend-leaning full stack, high-traffic production systems, system design and database fundamentals, production ops

ElevenLabsElevenLabs builds AI voice, conversational-agent, creative-media, and developer API products.

Python

C, RTOS, Python, Git, IoT security, Serial protocols, Board bring-up, ESP32

GCP

Google Cloud, Cloud Infrastructure, Cloud Architecture, DevOps, Cybersecurity, Data Engineering, AI-related technical fields

Productive PlayhouseProductive Playhouse is a California-based global data and language-services company specializing in transcription, localization and AI evaluation.

Python

5+ years C++, Python-based AI services, agentic workflows or retrieval systems

NVIDIANVIDIA builds accelerated-computing platforms for AI, data centers, gaming, robotics and autonomous vehicles.

Go

Shipped LLM/agent features to 10k+ users, Golang backend, RAG and tool calling, LLM evals, 1 year Web3 preferred

Trust WalletTrust Wallet is a leading B2C multi-chain, non-custodial cryptocurrency wallet enabling users to manage over 10 million digital assets, headquartered remotely with a global user base.

Python · Go

Europe/UK with right to work, senior backend in Golang or Python, production LLM apps, AI coding agents

Refurbedrefurbed runs an online marketplace for refurbished products, letting customers in 23 European countries buy for less while cutting CO2 emissions.

2 years of experience, C#, Elite 3E, REST APIs, JSON, XML, Git, Power Automate, Financial systems integration, Legal technology exposure, Problem-solving skills

HarborHarbor is a global provider of expert services in strategy, legal technology, operations, and intelligence, primarily serving law firms and corporate legal departments.

Python

Python, End-to-end ownership, Client-facing communication, Full-stack development, Cloud infrastructure, AI-powered development, Production-minded development, Business thinking, Self-management, Timezone flexibility

AE StudioAE Studio is a custom software development and design agency specializing in AI integration and data science, operating as a B2B provider for clients ranging from startups to Fortune 10 companies.

TypeScript · JavaScript · Node.js

5 years of experience, JavaScript, TypeScript, Node.js, AWS, AI application patterns, LLM-powered features, AI observability, Production AWS, REST/API design, Ownership mindset, English B2

WildixWildix is a Tallinn-based B2B UCaaS provider specializing in AI-powered VoIP and collaboration solutions for businesses across 135+ countries.

5+ years backend/AI systems, LLM inference, APIs/distributed systems; also eligible in Cyprus and Hungary

KrakenKraken is a financial platform where individuals and institutions trade crypto, stocks, ETFs, and futures.

AWS · Azure

2 years of experience, MuleSoft Anypoint Platform, API design, Integration Design patterns, Microservices architecture, Public cloud experience (AWS/Azure), Non-profit sector experience, Excellent debugging skills, Strong communication skills

fusionSpanfusionSpan is a Rockville, MD-based B2B technology consulting firm specializing in Salesforce implementations and managed services for nonprofits and membership organizations.

React · Python · Go

5 years of experience, React, WordPress, Python, Golang, Microservices architecture, Event-driven systems, Distributed computing, Agile concepts, Dev-ops processes, Cloud platforms (AWS, Azure, GCP), Containerization (Docker), SQL, NoSQL, Terraform

Unity, AI focus, Social gaming

Java · AWS

4 years of experience, Java, Spring Boot, RESTful APIs, Microservices, Distributed systems, Asynchronous processing, PostgreSQL, Redis, Kafka, AWS, High throughput systems, Idempotent transaction processing

Java · AWS

7 years of experience, Java, Spring Boot, RESTful APIs, Microservices, High-throughput systems, Idempotent transaction-processing, AWS, Kafka, Redis, Distributed systems

Go · Rust

Distributed databases/query engines, Golang or C++ or Rust, multi-tenant SaaS, in-person onboarding

Grafana LabsGrafana Labs builds Grafana Cloud and develops open-source observability projects including Grafana, Loki, Tempo, and Mimir.

Go · Rust

Distributed databases/query engines, Golang or C++ or Rust, multi-tenant SaaS, in-person onboarding

Grafana LabsGrafana Labs builds Grafana Cloud and develops open-source observability projects including Grafana, Loki, Tempo, and Mimir.

Go · Rust

Distributed databases/query engines, Golang or C++ or Rust, multi-tenant SaaS, in-person onboarding

Grafana LabsGrafana Labs builds Grafana Cloud and develops open-source observability projects including Grafana, Loki, Tempo, and Mimir.

Python

~1 year production software engineering, Python, European work authorization, B2B contract, 40+ hours/week

KalepaKalepa builds AI-powered underwriting software that helps commercial insurers assess risks and manage decisions from submission through portfolio management.

Go · Rust

Distributed databases/query engines, Golang or C++ or Rust, multi-tenant SaaS, in-person onboarding

Grafana LabsGrafana Labs builds Grafana Cloud and develops open-source observability projects including Grafana, Loki, Tempo, and Mimir.

Python · SQL

Python, Linux troubleshooting, API design and integration, Asynchronous processing, CI/CD, SQL, AI coding agents, Django, Django REST Framework, Celery, RabbitMQ

Go · Rust

Distributed database/query engines, Golang/C++/Rust, catalogs and table formats, AI data systems

Grafana LabsGrafana Labs builds Grafana Cloud and develops open-source observability projects including Grafana, Loki, Tempo, and Mimir.

Python · Kotlin · AWS

4+ years backend, Kotlin or Python, AWS, MySQL, Kubernetes

AffirmAffirm operates a payment network that gives consumers flexible ways to pay and helps merchants grow.

Go · SQL

Golang, distributed systems, SQL, networking, UK residence and work authorization

TailscaleTailscale builds secure, easy-to-manage private networks using WireGuard.

TypeScript · React · Next.js

5 years of experience, React, Next.js, Node.js, TypeScript, GraphQL, PostgresDB, Redis, Amazon SQS, Event-driven workflows, Experiment-driven features, Web performance optimization, Healthcare experience

Hims & HersHims & Hers is a telehealth platform providing personalized health and wellness products and care.

Production-grade software, AI technologies, LLMs, Prompt engineering, Cloud-native environments, Observability tools, Multi-tenant architecture, Context management systems, Scalable SaaS solutions

Grafana LabsGrafana Labs builds Grafana Cloud and develops open-source observability projects including Grafana, Loki, Tempo, and Mimir.

Production-grade software, AI technologies, LLMs, Prompt engineering, Cloud-native environments, Observability tools, Multi-tenant architecture, Context management systems, Scalable SaaS solutions

Grafana LabsGrafana Labs builds Grafana Cloud and develops open-source observability projects including Grafana, Loki, Tempo, and Mimir.