Senior Software Engineer

Janes; Croydon; On-site; GBP 55,000 - 75,000; Full time

Job summary

A leading intelligence service provider seeks an experienced Senior Software Engineer in Croydon. You will contribute to building a modern technology platform, focusing on high-quality data systems and solutions. Ideal candidates have over 6 years of experience, strong problem-solving skills, and familiarity with cloud technologies. This full-time position encourages innovation in a collaborative agile environment.

Qualifications

• 6+ years of experience in software engineering.
• Experience with cloud technologies, especially AWS.
• Strong understanding of SDLC and agile delivery.

Responsibilities

• Contribute to design, coding, testing of applications.
• Deliver high quality, scalable, maintainable solutions.
• Build and maintain data pipelines ensuring quality.

Skills

Collaboration

Problem solving

Communication

Cloud technologies (AWS)

Agile methodologies

API First principles

Tools

NoSQL

Graph database

Data pipeline engineering

SOLR/ElasticSearch

Job description

Join to apply for the Senior Software Engineer role at Janes

Janes empowers military, government, and defence leaders to act with confidence in an increasingly complex world. Our trusted defence, security, and geopolitical information delivered through seamless digital platforms and system integrations—turns overwhelming data into clear, actionable intelligence and insight. By filling critical information gaps, Janes helps customers analyse threats, accelerate decisions, and stay ahead of emerging challenges.

Overview

Janes is building a modern technology platform to support open-source intelligence gathering and delivery. We are seeking experienced Software Engineers with expertise in one or more identified technical areas, who have a strong background working with complex data and high-impact scalable systems, transforming and delivering complex datasets, and a high appreciation for data quality.

Job purpose

We are seeking experienced Software Engineers with expertise in one of a number of identified technical areas, who have a strong background working with complex data, comprehensive experience in developing, high impact scalable systems, transforming and delivering complex datasets, and showing a high appreciation for data quality.

Where you will work

You will be working as part of a multi-functional team based in either Croydon or Manchester, shaping our deliverables within our Single Intelligence Environment. You should be self-motivated, a natural problem solver, and used to operating at a high-performance level in CI/CD environments, acting as a driver to ensure quality deliverables with high efficiency across the software delivery lifecycle.

How you will contribute at Janes

• Be part of an Agile team contributing to the design, coding, testing and delivery of applications and services.
• Have technical expertise in one or more of the following technology areas:
• NoSQL, such as DocumentDB/Mongo
• DBRDF Graph database such as Graph
• DBML/AI such as Sagemaker/Bedrock
• Search technologies such as SOLR or Opensearch/ElasticSearch
• Data pipeline engineering utilising cloud-based technologies (AWS)
• Write high quality clean, testable code, with a focus on incremental innovation.
• Take part in code and design reviews helping to improve overall software quality.
• Deliver high quality, scalable maintainable solutions.
• Identify and drive opportunities for adopting new technologies.
• Utilise Data Engineering skills and knowledge to ensure high quality datasets of differing types, including structured, NoSQL and graph.
• Build and maintain data pipelines, ensuring quality on transformations and applying best practice such as data retention, quality, security, coverage and accuracy
• Build high quality data delivery systems to be consumed by customers, including different output types and delivery cadences.
• Build best in class API experience for customers.
• Share knowledge, promote and coach standards and best practice.

The ideal skills and experience

• 6+ years experience in software engineering, owning outcomes and driving standards.
• Technically curious, tackling problems to ensure impactful outcomes and producing solutions that raise the standards with the engineering group.
• Collaborative, team player, works well with others
• Mentoring and coaching skills
• Strong problem solving and communication skills
• Strong understanding of SDLC
• Expertise with cloud technologies especially AWS
• Good experience delivering solutions and impact in agile environments
• Good with Observability, Monitoring and Serverless technology
• Experience providing data for consumption via API
• Experience and strong understanding of API First principles

Our mission and technology at Janes

Our mission is to create trusted open-source intelligence with verification and validation through our Tradecraft processes within our Single Intelligence Environment (SIE). We use AI, ML, graph and document databases, search platforms, serverless technologies and geospatial systems to deliver OSINT data and product platforms that enable the mission.

Technology at Janes emphasizes collaboration, agile delivery, and a modern in-house technology team located across Croydon and Manchester. Our environment values problem solving, innovation, and high staff retention.

We expect our engineers to contribute to an empowered, disciplined development environment delivering complex solutions that require genuine problem solving and innovation.

Role details

• Seniority level: Mid-Senior level
• Employment type: Full-time
• Job function: Engineering and Information Technology
• Industries: Information Services, Defense and Space Manufacturing, and Technology, Information and Media

Note: This description reflects the responsibilities, qualifications, and expectations for the Senior Software Engineer role as posted. If you require more information, please apply through the official channels.