Senior Developer

Ada Mode Limited; United Kingdom; On-site; GBP 70,000 - 110,000; Full time

Benefits offered by this job

33 days leave (incl. Bank Holidays) +

Flexible working arrangements

Health & wellbeing contribution (e.g.

Job summary

Ada Mode Limited is seeking a Senior Developer to lead high-impact digital solutions and bespoke software. The role blends strong software engineering with leadership, commercial awareness, and client relationship building.

You will guide multidisciplinary teams, oversee complex projects, and act as a technical lead for key clients. You will drive architecture across infrastructure, backend, data and ML operations, while ensuring secure, scalable delivery and close collaboration with senior

Qualifications

• Experience building containerised applications in Azure environments.
• Strong knowledge of Azure services for serverless APIs and deployments.
• Security-focused development with OAuth 2.0 and identity management.
• Experience delivering live timeseries data analysis pipelines.
• Proficiency in Python, FastAPI and UV-based package management, and Git workflows.
• Degree in engineering, mathematics, computer science, or a related field.

Responsibilities

• Collaborate with customers to design, build and ship production systems in regulated environments.
• Lead SDLC activities across infrastructure, backend, data and ML operations, and deployment.
• Provide technical leadership to project teams and guide Ada Mode's growth.
• Translate ambiguous customer requirements into working software within operational constraints.

Skills

Containerisation

Azure

OAuth 2.0

Timeseries pipelines

WebSockets

Python

FastAPI

Git

Trunk-based workflow

Education

Engineering degree

Mathematics or related

Computer science or data science degree

Job description

Ada Mode is looking for a Senior Developer to take a leading role in delivering high-impact digital solutions and bespoke software for our customers. This is a senior position for someone who combines strong software engineering with leadership, commercial awareness, and the ability to build trusted client relationships. You will lead multidisciplinary development teams, oversee the delivery of complex projects, and act as a technical lead for important clients. You will be comfortable operating at multiple levels: providing technical leadership to project teams, working closely with senior client stakeholders, identifying new opportunities, and helping guide Ada Mode’s growth as a business.

High Level View

• Collaborating directly with customers to design, build and ship production systems in regulated industrial environments
• Leading software development lifecycle activity across infrastructure, backend, data and ML operations, and deployment
• Translating ambiguous customer requirements into working software under operational constraints

Essential Skills and Experience

• Building & hardening containerised applications within on-premises and Azure based infrastructure environments
• Strong working knowledge & experience applying Azure services to application development / deployment (via IaC principles) – particularly for serverless APIs, event-driven architectures and frontend deployments (CDN)
• Creating secure & robust applications in enterprise environments (Oauth2.0, credential and identity management
• Navigate delivery of live + timeseries based data analysis pipelines alongside integration with WebSockets and messaging
• Knowledge of Python, FastAPI and UV-based package management
  Good experience of git and trunk-based workflow management
• Degree in engineering, mathematics, physical sciences, computer science, data science, or a related discipline.

Desirable Skills and Experience

• Full-stack infrastructure fluency (minus Frontend development): Linux, containers, python, SQL, cloud IAM
• Bias towards being able to ship features + pragmatic problem-solving skills
• Strong customer facing communication, comfortable explaining technical concepts to non-technical stakeholders
• Data science, ML and AI experience (and it’s integration into wider applications)
• Experience working in energy, nuclear, maritime, manufacturing or similar industrial sector
• 33 days leave (including Bank Holidays) + Christmas time off
• Flexible working arrangements
• Health and wellbeing contribution (e.g. Gym membership)

Location

This role can be based out of any of our Southampton, Bristol or Manchester offices. We offer a hybrid working model with the expectation that you attend the office >3days/week.

Ada Mode is an industrial technology and data science company whose aim is to improve the performance of complex industrial processes through artificial intelligence, engineering expertise and great design. Ada Mode helps clients by identifying opportunities in their data, designing a strategy and developing the solution. All of our solutions are bespoke to the client, built on technology developed in-house. Ada Mode currently works across the energy, utilities and manufacturing sectors. We are a small company with a strong order book and are looking for someone who shares our vision and has enthusiasm for growing and developing an exciting business.