Senior Software Engineer - Agentic AI

Flooid Limited; Birmingham; Hybrid; GBP 70,000 - 90,000; Full time

Benefits offered by this job

Flexible working

Holidays 25–30 days + holidays

Pension (salary sacrifice)

Sick pay

Family benefits

Udemy access

Wellbeing support

Job summary

Flooid Limited is seeking a senior software engineer to lead delivery in a hybrid UK environment. You'll own features end-to-end, design scalable full-stack solutions with Java, Spring, and Angular, and apply spec-driven development across the stack.

The role emphasizes agentic development, automated testing, and collaboration with Product, QA, Architecture, and Operations. Travel to the Birmingham office is expected.

Qualifications

• Strong software engineer with progression to senior ownership.
• Hands-on with Java and Spring, plus Angular or similar front-end tech.
• Fluency with Cursor in engineering delivery and spec-driven work.
• Experience mentoring and driving automated testing, CI/CD, and observability.

Responsibilities

• Act as a senior engineer, providing technical direction and ownership.
• Own features end-to-end from problem understanding to iteration.
• Develop high-quality full-stack software using Java, Spring, Angular, and JavaScript.
• Apply spec-driven development with clear requirements and decisions.
• Use automated tests, code review, and security checks to validate changes.
• Create reusable agentic skills and workflows to improve efficiency.

Skills

Java

Spring

Angular

Full-stack architecture

Tools

JUnit

Mockito

Selenium

Flutter

Dart

SQL

MongoDB

GCP

Cursor

Job description

Responsibilities:

• Act as a senior engineer within a delivery team, providing technical direction and leading by example in design, implementation, quality, and operational ownership.
• Own features and technical improvements end to end, from understanding the problem and shaping the solution through build, review, release, monitoring, and iteration.
• Develop high-quality full-stack software using Java, Spring, Angular, JavaScript, and related technologies, applying appropriate patterns and balancing functional and non-functional requirements.
• Work agentic-first in Cursor: break outcomes into bounded work, provide agents with clear specifications and context, supervise execution, review generated changes, and remain accountable for everything that ships.
• Apply spec-driven development so requirements, constraints, acceptance criteria, and technical decisions are clear before implementation begins. Keep prompts, rules, skills, and context versioned and reusable where they form part of the engineering solution.
• Use automated tests, evaluation, code review, security checks, and human judgement to validate AI-assisted changes. Treat agent output as untrusted until it has met the same or higher quality bar as any other production change.
• Create and improve reusable agentic skills and workflows that reduce repeated effort and make other engineers faster, sharing what works and retiring practices that do not.
• Design and evolve scalable, resilient solutions, including third-party integrations and legacy modernisation, and communicate technical decisions and trade-offs clearly.
• Drive engineering standards across the software delivery lifecycle, including clean code, automated testing, CI/CD, secure-by-design practices, observability, documentation, and safe rollback.
• Troubleshoot complex issues across services and environments, contribute to incident response, and ensure root causes and follow-up actions are addressed rather than symptoms being hidden.
• Partner with Product, Business Analysis, Quality Engineering, Architecture, and Operations to shape requirements, sequence work, manage risk, and deliver high-quality outcomes at the times committed.
• Use a small set of delivery and quality measures to guide improvement, including lead time, escaped defects, change failure, reliability, and where useful agent intervention or rework. Optimise for customer and business outcomes, not code volume or AI usage.
• Mentor and coach engineers through pairing, reviews, feedback, and knowledge sharing, raising both traditional engineering capability and confidence in agentic ways of working.

Our technology stack includes Java (JUnit, Mockito, Selenium), Spring core/web/remoting/boot, JavaScript, Angular, mobile development using Flutter and Dart, SQL and MongoDB, GCP, and Cursor.

Essential

• Strong experience as a software engineer with clear progression to senior-level ownership, including designing, building, releasing, and operating production software.

• Strong hands‑on experience with Java and Spring, together with Angular or comparable modern front‑end technologies and a sound understanding of full‑stack architecture.

• Fluency in Cursor as part of normal engineering delivery. You can demonstrate how you use it to investigate systems, specify and implement change, review output, test thoroughly, and retain ownership of the result.

• Practical experience of agentic software development in a real team. Using code completion or asking a chatbot occasional questions is not enough; you have used agents to deliver substantive production work through a controlled, repeatable workflow.

• Strong engineering discipline across automated testing, Git and code review, CI/CD, observability, secure development, documentation, and production support.

• Ability to reason about architecture and trade‑offs across distributed systems, integrations, data, security, reliability, and maintainability.

• A track record of delivering high‑quality software predictably, working collaboratively across disciplines, and taking accountability for outcomes.

• Experience mentoring engineers and raising the capability of a team through technical guidance, constructive review, and knowledge sharing.

Desirable

• Experience with Flow Next (flow-next.dev), or a comparable agentic, spec‑driven delivery framework that takes work from a reviewed specification through planned tasks, implementation, verification, and review.

• Experience creating reusable agent skills, rules, context, or workflow automation, together with familiarity with MCP, tool calling, agent orchestration, evaluation, or observability.

• Experience with GCP, cloud‑native delivery, infrastructure as code, highly available systems, and retail or hospitality technology.

At Flooid you will find a fun, professional and supportive environment where people genuinely care about the work they do and the customers they serve.

We value contribution over job titles, encourage openness and collaboration, move quickly, and believe in rolling up our sleeves to get great things done.

Salary: £70,000 - £90,000 depending on experience

Location: Hybrid. You must be UK based. You should be able to travel to the Birmingham, UK office a few times a month.

Hours: Full time, Monday to Friday.

• Flexible working - To help you manage your personal responsibilities and interests, we offer a range of flexi‑working options, including hybrid working, as well as balancing your work responsibilities with other priorities, like picking up your children, caring for an aging parent or attending important events.
• Holidays - We operate a flexible holiday allowance scheme, we recommend employees take around 25-30 days holiday plus public bank holidays per year.
• A flexible pension - We help you prepare for the future with a salary sacrifice pension and annual personal pension reviews with our external partner
• Company sick pay - We offer peace of mind when you are ill with an enhanced Company Sick Pay policy
• Family benefits - We offer a range of support and benefits including enhanced maternity, adoption and paternity pay, enhanced paternity leave and shared parental leave
• Electric Car salary sacrifice scheme - An easy to manage and affordable way of leasing a zero‑emission electric vehicle
• Online learning platform -We offer full access to Udemy for all employees, which offers a variety of technical, business and personal development e‑learning courses.
• Financial, physical and wellbeing support - To help keep you at your best we provide our team with a health cash plan and if the worst should happen, we have a life assurance scheme
• Access to a discount platform - Treat yourself with discounts and rewards from hundreds of leading retailers, restaurants, and destinations
• Professional subscriptions - We offer reimbursement for professional subscriptions to a relevant institution if it’s required to perform your job role
• Charity giving - support a charity of your choice by gifting money directly from your payroll, saving the national insurance contributions you need to pay
• Cycle to work scheme - Make the most of this tax efficient scheme to improve your commute to work
• Rewarding long service - We provide gifts to our employees who achieve milestone years of service working as part of our team

Travel to Birmingham is essential.

If you believe you have the skills and experience to carry out this role, although feel you do not meet 100% of the criteria, Research suggests that certain groups of the population will apply for a role if they meet 60% of a roles requirements, while others will only apply if they hit 100% - we encourage applications from anyone with the skills, experience and attributes that will make you a great addition to both the role they are applying and the company overall.

Flooid Ltd. is an Equal Opportunities employer. We are dedicated to fostering, cultivating and preserving a culture of diversity, equity, inclusion, and belonging.

Artificial intelligence can be a useful tool to support your application, however, all examples and statements provided must be truthful, factually accurate and taken directly from your own experience. Please ensure that your application remains a personal reflection of you. We do not use AI to assess applications – every resume is looked at by a real person.

We reserve the right to close this vacancy early if we receive a high volume of applications.