Senior Software Engineer
Not disclosed
Salary
Not disclosed by employer
£54,700
Going rate
Skilled Worker going rate
This role likely qualifies for a Skilled Worker visa
Our predicted code SOC 2134 (94% match) is an eligible occupation, with a going rate of £54,700, and Sedex Information Exchange Limited is a licensed sponsor. That is our reading of the published rules. Whether they issue a Certificate of Sponsorship is still their call.
About the role
About Sedex
More than 100,000 businesses across the world have made Sedex their trusted partner in creating a more socially and environmentally sustainable supply chain.
From our platform’s unrivalled data insights to our team’s expert guidance, Sedex makes it easy for companies to manage, assess and report on sustainability performance.
Our Vision is to be a leader in making global supply chains more socially and environmentally sustainable. Our Mission is to supply data-driven insight through the most accessible tools and services. We engage with companies and our community to continuously improve their environmental, social, and governance (ESG) outcomes.
The Role
We are looking for an experienced senior software engineer to join one of our multi-functional product delivery teams. You will primarily work on backend services in Kotlin but will be expected to contribute to the frontend codebase (React.js) at times as well, with support from our frontend specialists.
You will be a product-minded engineer, working together with the product manager and designer in your team to understand customer needs and write software to meet them. You will work with the other engineers in your team and across the business to design and build maintainable, secure and reliable systems in an iterative fashion. You will contribute to a culture of DevOps and Continuous Delivery, where 10+ deploys to production per day are done in a safe, tested manner and the team owns the operability, performance and other non-functional requirements of the software it builds. You will make full use of modern development tooling, automation, and AI coding assistants to work at a high level of productivity without compromising on quality.
Key Responsibilities
In the first 3 months you will:
Familiarise yourself with the domain and systems within the scope of your team
Understand the overall architectural landscape in which your systems live
Gain an in-depth understanding of the production environment setup, CI/CD pipelines and deployment processes
Familiarise with and begin monitoring the operational data and metrics from the production environment
Become productive and begin owning and shipping features
Build relationships cross-team and cross-function
Make a positive impact to your team, establishing yourself as open and approachable, with a wealth of knowledge and experience to draw upon
Understand and settle into the team processes and cycles, and start forming ideas on how they can be improved
Develop a solid grounding in your understanding of the business and how it operates
Ongoing responsibilities:
The design and implementation of innovative solutions and architectures through high-quality test-driven code
The intelligent break-down of deliverables in a way that facilitates the constant and iterative delivery of value to our customers
To pass the benefit of your knowledge and experience on to the team via code review, your contributions in planning activities, retrospectives, knowledge sharing sessions, etc
Mentoring and coaching more junior / less experienced members of the team, role-modelling an open, positive, progressive, and results-orientated approach
Identifying and articulating technical risk, tech-debt, and non-functional requirements to both technical and non-technical audiences
Championing of a data-driven approach, advocating for and educating around the metrics that we use, and routinely applying their interpretation in the planning of work
Monitoring and supporting your code in production
Contribution to the wider engineering community at Sedex
Using AI coding assistants as a core part of your daily development workflow — for writing and refactoring code, generating tests, and exploring implementation approaches
Critically evaluating AI-generated output before integrating it, ensuring correctness, security, and maintainability
Role-modelling effective AI-assisted practices for the team, and helping less experienced engineers develop sound judgment about when and how to use these tools
Knowledge, Skills & Experience
You should have:
5+ years of commercial experience working in software engineering teams, using agile methodologies and test-driven approaches
Highly proficient in a backend programming language - Kotlin, Java, C#, Go, TypeScript/JavaScript (Node.js), Python etc
Deep knowledge of automated testing at various levels and the use of TDD to drive your software design
A good understanding of modern architectural patterns and designs, including service-oriented architecture, API design, and integration patterns
Knowledge of containerisation for packaging applications and running them locally and in the cloud (Docker, Kubernetes, Helm)
Good knowledge of database design and the ability to write software that interacts with both relational and NoSQL databases
Good knowledge of message-based architectures using technologies like Apache Kafka
Deep knowledge of CI/CD and a DevOps mindset
A keen focus on creating customer value
A strong sense of accountability and ownership
A results-oriented mindset
Positivity in the face of change, and an advocate for continuous evolution of the team and its capabilities
Excellent communication skills, including writing technical documentation where required
A desire to work collaboratively with other engineers (pair-programming, mobbing)
Experience coaching/mentoring less experienced colleagues
Hands-on experience using AI coding assistants in your development workflow, with the judgment to critically evaluate their output and recognise when not to rely on them
Bonus points for:
Expertise in Kotlin on the JVM
Experience in writing web frontends using React.js
What exceptional candidates often look like
They deliver high-quality software consistently and take pride in the craft
They write code that others find easy to read, test, and extend
They think carefully about how their code behaves in production
They simplify rather than over-engineer
They look for opportunities to automate repetitive work
They seek feedback proactively and act on it quickly
They show genuine curiosity — they read the codebase, ask good questions, and invest in understanding the why
They use AI coding assistants with skill and judgment — getting strong results while critically interrogating output and knowing when not to rely on them
They raise the bar for the engineers around them, through code review, mentoring, and example
Our Culture
At Sedex, our approach to business and culture is firmly rooted in our core values, which guide everything we do:
Respect Each Other: We believe that a foundation of mutual respect is essential to creating a positive and inclusive environment.
Customer-Driven: We are passionate about delivering exceptional value to our customers. By listening to their needs, understanding their challenges, and continuously adapting our solutions, we aim to empower them to achieve their sustainability goals and drive positive change in their supply chains.
Thinking Creatively: Innovation is at the heart of our work. We encourage creative problem-solving and embrace new ideas that challenge the status quo. This mindset allows us to continuously improve our products and services, offering fresh and effective solutions to complex sustainability and ethical sourcing issues.
Take Ownership: We empower our team members to take responsibility for their actions and outcomes. Every person at Sedex is encouraged to own their work, make decisions with confidence, and contribute proactively to the success of the team and the business.
Deliver Results: We are results-oriented and committed to delivering tangible, impactful outcomes for our customers, our business, and society at large.
We want everyone to feel they can be themselves and thrive at work - in every country, in everything we do, every day. We are focused on providing a culture characterised by inclusive everyday behaviours built on a foundation of respect and appreciation for diversity in all its forms.
Privacy Policy
Sedex is committed to protecting the privacy of its website users and members. Sedex uses any personal information you submit to us in accordance with this policy. The General Data Protection Regulation (GDPR) requires us to ensure that any personal information you provide us is processed fairly and lawfully. Sedex is the data controller in relation to any personal information you submit. Click here to view our privacy policy
This description is the source posting as it read when we added it. We are not affiliated with Sedex Information Exchange Limited, so check their own site for the current details.
Where this offer sits in the market
SOC 2134 · UK · ONS ASHE 2025 · ~343k in sampleSimilar sponsored roles
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Browse more sponsored jobs at Sedex Information Exchange LimitedAbout sponsorship for this role
Does this job guarantee visa sponsorship?
Not necessarily. Sedex Information Exchange Limited holds a sponsor licence, but sponsorship for a specific hire is always the employer's decision. Be upfront in your application that you'll require it.
What salary is needed for this role to be eligible?
The offer must clear both the general threshold and the SOC 2134 going rate of £54,700. New-entrant and shortage discounts can lower it.