City of London, London, United Kingdom Hybrid / WFH Options
TreasurySpring
dollars worth of our customers' investments every day, capturing all client orders and managing the entire investment cycle. Our backend services are built in [typed] Python3, backed by a Postgres database. This includes a proprietary workflow engine built around a Scheme-based workflow notation. Our frontend systems include our clean, simple web portal for client order capture and reporting, built … STEM degree or equivalent professional experience Desirable skills: Deep knowledge of Python, including any of the frameworks we currently use: Flask, SqlAlchemy, Alembic, Pydantic Experience with relational databases, ideally Postgres Experience of message-based architectures, and queuing technologies, i.e. RabbitMQ Experience of REST and/or GraphQL APIs Knowledge of the core AWS services: i.e. EC2/ECS, RDS, S3 More ❯
EKS Terraform (Enterprise) Micro-services AWS experience including Cloudfront, S3, EKS, LoadBalancing, Security, API Gateway, Transit Gateway ArgoCD OpenTelemetry Istio Database experience ideally but not mandatory: RDS (Oracle/Postgres), MongoDB Gitlab CICD If this role sounds like a good match to your skill set and you would like to know more, please apply and I will call you to More ❯
in the office. Requirements Strong background in Ruby Experience with JavaScript – React/Vue.js Knowledge of cloud based technologies – AWS/GCP/Azure Advocate of TDD Knowledge of Postgres or MongoDB would be advantageous Bonus points for Hotwire, Stimulus, Turbo As a Ruby developer, this is a unique opportunity to join a market leading company with the added bonus More ❯
in the office. Requirements Strong background in Ruby Experience with JavaScript – React/Vue.js Knowledge of cloud based technologies – AWS/GCP/Azure Advocate of TDD Knowledge of Postgres or MongoDB would be advantageous Bonus points for Hotwire, Stimulus, Turbo As a Ruby developer, this is a unique opportunity to join a market leading company with the added bonus More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Venture Up
with the dedicated Infrastructure Engineer who manages company’s AWS infrastructure. Essential Skills Demonstrable experience of using a dynamic language such as Ruby RDBMS experience (such as MySQL or PostgreSQL) Some experience, or a desire to work, with JavaScript Some experience with Linux and/or Mac OS command line Experience using a source control system such as Git Familiarity More ❯
with the dedicated Infrastructure Engineer who manages company’s AWS infrastructure. Essential Skills Demonstrable experience of using a dynamic language such as Ruby RDBMS experience (such as MySQL or PostgreSQL) Some experience, or a desire to work, with JavaScript Some experience with Linux and/or Mac OS command line Experience using a source control system such as Git Familiarity More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Venture Up
closely with the dedicated Infrastructure Engineer who manages companys AWS infrastructure. Essential Skills Demonstrable experience of using a dynamic language such as Ruby RDBMS experience (such as MySQL or PostgreSQL) Some experience, or a desire to work, with JavaScript Some experience with Linux and/or Mac OS command line Experience using a source control system such as Git Familiarity More ❯
processes Strong collaborative approach, working effectively with both technical peers and business teams The ability to communicate technical concepts clearly across the team Tech Stack includes: Python, FastAPI, AWS, PostgreSQL, Django, Kubernetes, Terraform, GitHub What the Backend Developer - Python role offers: £70,000 base salary 10% performance-based bonus 28 days annual leave (plus public holidays) + birthday day off More ❯
mid-level Software Engineer with up to 6+ years of hands-on Python experience. Familiarity with AWS Serverless and related technologies would be advantageous. Strengths in Pandas, Polars, Pytest, Postgres, and CI/CD is essential. If you're interested in Agile methodologies, and have a curiosity about DDD and Event-Driven architectures, you'd fit right in. What You More ❯
mid-level Software Engineer with up to 6+ years of hands-on Python experience. Familiarity with AWS Serverless and related technologies would be advantageous. Strengths in Pandas, Polars, Pytest, Postgres, and CI/CD is essential. If you're interested in Agile methodologies, and have a curiosity about DDD and Event-Driven architectures, you'd fit right in. What You More ❯
london, south east england, united kingdom Hybrid / WFH Options
DIY - Social Learning App for Kids
will be times when you're hands on too with our front-end Design, build, and maintain backend services and APIs using Manage and optimize relational databases ( MySQL and PostgreSQL ) Build and manage infrastructure-as-code using Terraform on AWS Support CI/CD pipelines and deployment processes Monitor, debug, and optimize backend performance Collaborate across teams to ensure smooth More ❯
Central London, London, United Kingdom Hybrid / WFH Options
Feenicks Ltd TA Archway International
Who Has a STEM background and lives in Python. Loves solving real-world data and finance challenges. Enjoys seeing your work have measurable, immediate impact. Maybe dabbles with Flask, PostgreSQL, or React. Is curious about AI/ML, or has tinkered with Docker and AWS. Whats In It For You Unlimited leave (really) Remote-first, with a day in Mayfair More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Anson McCade
use • Taking part in code reviews and sharing ideas with the team • Continuously improving how we work in an Agile environment Tech stack Python | FastAPI | Django | AWS | Kubernetes | Terraform | PostgreSQL | OpenSearch | GitHub What we’re looking for • Strong experience building backend systems, ideally with Python • Good understanding of databases, data structures and SOLID principles • A problem-solver who enjoys working More ❯
use • Taking part in code reviews and sharing ideas with the team • Continuously improving how we work in an Agile environment Tech stack Python | FastAPI | Django | AWS | Kubernetes | Terraform | PostgreSQL | OpenSearch | GitHub What we’re looking for • Strong experience building backend systems, ideally with Python • Good understanding of databases, data structures and SOLID principles • A problem-solver who enjoys working More ❯
and design teams to deliver exceptional user experiences Support continuous improvement in engineering practices, testing and deployment Tech Stack Front end: React (TypeScript), Redux, Sass Back end: Python (Flask), Postgres Requirements 0 to 2 years of software development experience Excellent understanding of Computer Science and software engineering fundamentals Strong experience with TypeScript/React or Python - both is highly preferred More ❯
and design teams to deliver exceptional user experiences Support continuous improvement in engineering practices, testing and deployment Tech Stack Front end: React (TypeScript), Redux, Sass Back end: Python (Flask), Postgres Requirements 0 to 2 years of software development experience Excellent understanding of Computer Science and software engineering fundamentals Strong experience with TypeScript/React or Python - both is highly preferred More ❯
City of London, London, England, United Kingdom Hybrid / WFH Options
Noir
suitable Graduate/Junior Developer who have recently graduated from university and have a basic understanding of any of the following technologies: Python, JavaScript, PHP, React, React Native, Django, Postgres, Docker and Agile; which might have been acquired as part of your degree course or through a placement year in industry. All Graduate/Junior Developer positions come with the More ❯
/PhD in a quantitative discipline. Experience with optimisation frameworks (Gurobi, OR-Tools). Knowledge of financial markets, derivatives, or clearing/margin optimisation. Hands-on experience with AWS, PostgreSQL, or distributed computing. Why Join? Solve complex mathematical challenges with global financial impact. Work in a collaborative, research-driven team where curiosity and creativity are valued. Benefit from a competitive More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Searchability
for AI development, data processing, and API integration. Solid understanding of AI system design, prompt engineering, and model fine-tuning. Experience working with SQL and modern data ecosystems (GCP, PostgreSQL, or similar). Background in machine learning, NLP, or AI workflow automation. NICE TO HAVE: Experience integrating AI models into production systems using GCP, AWS, or Azure. Familiarity with vector More ❯
you think about flow, usability, and customer experience. Experience with e-commerce or transactional web apps. Familiarity with search and indexing tools (e.g. Elasticsearch, Algolia, OpenSearch). Database knowledge (PostgreSQL, MongoDB, etc.). Comfortable owning projects end-to-end and working in an agile, startup environment. Bonus: Experience in creative industries or digital media platforms. You Might Be Right If More ❯
City of London, London, United Kingdom Hybrid / WFH Options
KINTZING
you think about flow, usability, and customer experience. Experience with e-commerce or transactional web apps. Familiarity with search and indexing tools (e.g. Elasticsearch, Algolia, OpenSearch). Database knowledge (PostgreSQL, MongoDB, etc.). Comfortable owning projects end-to-end and working in an agile, startup environment. Bonus: Experience in creative industries or digital media platforms. You Might Be Right If More ❯
designing and maintaining mission-critical backend applications Strong Python engineering skills , with a track record of building performant, maintainable, and testable systems Solid background in microservices architecture Proficiency with Postgres & MongoDB (relational + non-relational) Experience with event-driven architectures and asynchronous workflows (Kafka, Airflow, etc.) Solid coding practices (clean, testable, automated) The mindset of a builder: thrives in fast More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Anson Mccade
for quality through Agile practices. Ensure clean, testable, and well-documented code. Our Tech Stack You'll be working primarily with: Python (FastAPI, Django) AWS (Lambda, EC2, S3, etc.) PostgreSQL , Opensearch Kubernetes , Helm , Terraform GitHub for version control We're pragmatic about tools and open to exploring new technologies that help us build better, faster, and smarter. What You'll More ❯
and analytical warehouses; design models for both. Python: Strong expertise; C# experience is a plus. SQL: Comfortable with complex queries and query tuning on relational and analytical databases (e.g., PostgreSQL, ClickHouse). Containers: Experience building, running, and deploying containerized services in local and production environments. Cloud platforms: Experience with Azure and distributed systems. Preferred Skills Kubernetes & Helm: Deploying and managing More ❯
and analytical warehouses; design models for both. Python: Strong expertise; C# experience is a plus. SQL: Comfortable with complex queries and query tuning on relational and analytical databases (e.g., PostgreSQL, ClickHouse). Containers: Experience building, running, and deploying containerized services in local and production environments. Cloud platforms: Experience with Azure and distributed systems. Preferred Skills Kubernetes & Helm: Deploying and managing More ❯