Full Stack Software Engineer

SR2 Clean Energy; Southampton; Hybrid; GBP 80,000 - 100,000; Part time

Job summary

A leading consultancy in Defence is seeking a Full Stack Software Engineer to develop APIs and data processing pipelines. The successful candidate will work with scientists and engineers in a hybrid role based in Southampton. Essential skills include strong knowledge of Python, C++, and experience with Kubernetes. This contract role offers a competitive rate of £500 per day and requires a commitment to software quality and technical documentation.

Qualifications

• Strong background in software engineering and data management principles.
• Proven expertise with Python and a strongly-typed language (C/C+).
• Extensive experience designing and deploying production-grade APIs.

Responsibilities

• Design and develop APIs for data streaming.
• Build and maintain data processing pipelines.
• Deliver applications into container orchestration systems.

Skills

API development

Python

C++

Kubernetes

Data management

Problem-solving

Job description

Full Stack Software Engineer | Python | C++ | APIs | Defence | Contract

Data Processing | Kubernetes | Sonar Systems | Hybrid (Southampton)

SR2 is partnered with an industry leading consultancy on the Defence programme, supporting critical Defence innovation, and we’re looking for an experienced Full Stack Software Engineer to join the teamp>

This role will focus on developing robust, production-grade APIs, building data pipelines, and delivering software applications into secure containerised environments. You’ll work closely with scientists, engineers, and domain experts to ensure sonar data is processed, shared, and operationally ready.

Key Responsibilities

• Design and develop APIs for data streaming across multiple protocols (HTTP RPC, WebSockets, TCP, UDP) using JSON/Protobuf
• Support engineers and scientists in adopting and using APIs effectively
• Build and maintain data processing pipelines in collaboration with domain experts
• Review and contribute to codebases across Python and C++
• Create and maintain unit and integration tests for reliability and quality
• Deliver applications into container orchestration systems like Kubernetes
• Document design decisions and ensure knowledge sharing across teams
• Solve complex technical challenges across multi-technology environments

Skills & Experience Required

• Strong background in software engineering and data management principles
• Proven expertise with Python and a strongly-typed language (C/C++)
• Extensive experience designing and deploying production-grade APIs
• Hands‑on experience delivering operational software into live environments
• Familiarity with Kubernetes and containerisation workflows
• Strong problem‑solving and collaboration skills, especially in multi‑team projects
• Commitment to software quality, best practices, and technical documentation

The Details

• 6 months
• Rate: £500 p/d
• Location: Hybrid, Southampton 1-2 days per week
• Start: ASAP