Senior Backend Engineer | AI Platform

Plum Fintech; Greater London; Hybrid; GBP 90,000 - 120,000; Full time

Benefits offered by this job

Stock options

Private health insurance

Annual training budget

Plum Premium

Flexible remote working

Office in London

Job summary

Plum, the smart saving and investing app, is seeking a strong Software Engineer to join our UK team. You will design modular, scalable services and work across product, design and data to ship high-impact features.

We value pragmatic, self-motivated engineers who can mentor teammates, improve processes, and communicate complex technical decisions clearly. You’ll collaborate in a hybrid setup with a mix of office days in London and flexible remote work.

Qualifications

• Proven experience as a software engineer, with 5+ years in a professional role.
• Ability to plan, prioritise, and deliver value continuously.
• Mentor teammates and contribute to improving team processes.

Responsibilities

• Design modular, scalable, testable systems with well-defined interfaces.
• Identify root causes and implement short- and long-term fixes.
• Collaborate across product, design and engineering to ship features rapidly.

Skills

5+ years engineering experience

Pragmatism

Planning & prioritization

Continuous improvement

Mentor junior team

Stakeholder communication

Clear technical communication

Cross-functional teamwork

Self-motivated

Multi-language awareness

Tools

Kotlin

Spring Boot

Python

FastAPI

PostgreSQL

BigQuery

GCP

Kubernetes

Docker

RabbitMQ

Terraform

Grafana

Prometheus

Datadog

Sentry

Job description

Hey! We’re Plum, your smart saving and investing app on a mission to help grow money for life. Whether you’re stashing the cash for tea and toast in your first home or catching some rays during retirement, Plum’s got your back.

Since 2016, over 2 million people in 10 European markets have set aside more than £2 billion with our clever automation and AI –that’s the magic of Plum! As recognition for our work, we’ve received awards from the likes of Deloitte, Finder, and more.

That’s all down to our passionate team of 200+ Plumsters, who work around Europe to help us achieve our mission. And now we’re looking for more brilliant people to join us on our journey.

The Role

At Plum we’re looking for engineers who are passionate about both technology but also about bringing the best product to our customers.

To achieve this mission we’re looking for engineers who not only have a strong technical background but who also understand the product and are able to make an impact on all the steps of the product development lifecycle.

Qualifications:

• At least 5+ years of working experience as a Software Engineer
• High level of pragmatism
• Strong planning and prioritization skills
• Promote Continuous Improvement by identifying process efficiencies and quality improvements
• Provide guidance to and mentor more junior team members
• Being able to share product insight with stakeholders and challenge product decisions
• Demonstrated capacity to clearly and concisely communicate about complex technical, architectural, and/or organizational challenges and propose thorough iterative solutions
• Experience in working within a cross functional team, collaborative environment, ability to partake in and contribute to technical, design and retrospective dialog
• Self-motivated and self-managing, with excellent organizational skills
• Comfortable working with both strongly and dynamically typed languages, we believe you can bring valuable insights and perspectives to the team

Key Responsibilities:

• Being able to create and design modular, scalable, testable, tested, performant systems which interface via well defined endpoints using software engineering best practices
• Being able to identify root cause of system issues and determine short and long term resolutions
• Adaptability and flexibility, we are building new and novel products and believe that we can provide our users the best products by shipping fast and getting feedback to improve on later iterations
• Able to work and intervene on the whole life cycle of the software

Our Tech Stack:

• Tech Stack: Kotlin with Spring Boot & Python with FastAPI
• Datastores: Postgres, BigQuery,
• Infrastructure: GCP (kubernetes, docker), RabbitMQ, Terraform
• Monitoring: Grafana, Prometheus, Datadog, Incident.io, Sentry

What to Expect from Our Hiring Process

At Plum, we value a lot the time you devote to the hiring process, this is why we are always trying to make the process as fast and smooth as possible.

• 30 min. Call with our Talent Acquisition Team. So we understand better your career plan, tell you more about Plum and the role
• 45 min. Call with our Engineering Lead. Brief technical discussion about the role and your skills
• 120 min. Live Coding Call with our Engineers, including System Design exercise and an Implementation phase
• 30 min. TeamCall with a Product Manager and a Senior Manager from Engineering, for you to understand the business and envision yourself as part of Plum
• Offer

Plum’s Perks

• Own part of the company you’re helping grow through stock options
• Private health insurance
• Annual training budget
• Plum Premium for free
• Competitive referral scheme
• Flexible approach to remote working: we encourage at least 2 days a week in one of our beautiful offices in London, Athens or Cyprus
• Team breakfasts and team lunches
• 25 days holiday + bank holidays45 work-from-anywhere days to give you flexibility to work your way
• 2 weeks sabbatical after 4 years to take the break you deserve
• Enhanced parental leave
• 1 paid volunteering day annually
• Annual team trip to a surprise destination!
• A fun, inclusive company culture (think)

If you think this sounds like you, don’t hesitate to get in touch!

Thanks,

Plum Team

Plum is an Equal Opportunity Employer. Plum does not discriminate on the basis of age, race, religion, sex, gender identity, sexual orientation, non-disqualifying physical or mental disability, national origin or any other basis covered by appropriate law. All employment is decided on the basis of qualifications, merit and business need