Staff Engineer @ Marshmallow

About Marshmallow

We started Marshmallow when we found out how unfair insurance prices are for people who move to the UK. All because the industry hasn’t given this huge cohort of people a second’s thought, and isn’t set up to price them properly. 

We saw an opportunity to do things differently, so we made it our mission to back the ones who step outside the norm. Since we started, we’ve helped 100,000s of people get a fairer deal on their car insurance. Using technology, we serve people that are often overlooked by financial services companies, solving important problems for people who need it most. 

Engineering at Marshmallow

Our engineers are at the heart of the solutions. They work on product builds from start to finish, solving lots of challenges to help us build fast and scale up Our engineers cover a range of skills across frontend, backend, full stack, iOS and android and work alongside designers, data scientists, researchers and product managers within our product teams.

Our product teams include: the Growth team, the Efficiency team, and the Claims team (to name a few) Each team sets its own roadmap and actively pushes our codebase forward.

Perks of the job

• Flexi-office working – Spend at least 2 days a week with your team in our Budapest office. The rest is up to you Plus you have 4 weeks of Work From Anywhere to use, with no need to come to the office.
• Competitive bonus scheme - designed to reward and recognise high performance
• 4-week fully paid sabbatical after being with us for 4 years
• Learning and development – Personal budgets for books and training courses to help you grow in your role. Plus 2 days a year - on us - to further your skillset
• Mental wellbeing support – Access therapy and mental health sessions through Oliva
• SZÉP card - Budget to spend on meals, leisure and accommodation
• Medicover Blue Package - An exclusive pass to top-notch healthcare services
• All You Can Move membership OR Monthly BKK pass - Unleashing your inner fitness guru or having a hassle-free commute - we've got you covered
• Company-wide Marshmallow Engineering Hackathon twice a year

Plus a monthly team social budget, bi-weekly office lunches and Office tea, coffee and snacks

Our process

We break it up into 4 stages:

• Initial call with our Tech Talent Acquisition Specialist (30- 45 mins)
• An interview where you will discuss your previous experience with one of our Engineering leaders (1 hour)
• Tech assessment followed by a technical interview with one of our Tech Leads + one other Engineer (1,5 hours)
• A culture interview to check that your work style fits our processes and values (1 hour)

Who you are

The Staff Engineer will thrive if they demonstrate autonomy, ownership, and flexibility in a fast-paced environment, and bring:

• Technical Mastery: Deep expertise in your domain and a broad understanding of adjacent fields, enabling sound architectural decisions and solutions to complex challenges.
• Strategic Vision: You think long-term, aligning technical decisions with business goals, and ensuring solutions are scalable and future-proof.
• Influence and Mentorship: You guide technical discussions, mentor engineers, and elevate the performance of those around you.
• Communication and Collaboration: You excel at translating technical details into business impacts and work seamlessly with technical and non-technical stakeholders.
• Problem-Solving Prowess: You solve complex problems with practical solutions that balance technical and business needs.
• Resilience and Adaptability: You thrive in a fast-paced environment and maintain high-quality output amid changing priorities.
• (Bonus) Domain Expertise: Relevant domain knowledge helps you make informed decisions and address industry-specific challenges.

What we're looking for from you

• 5+ years as a senior software engineer, with at least 2 years in a technical leadership or staff engineer role, delivering scalable, high-quality solutions.
• Strong expertise in backend development, system design, and architecture, with experience guiding complex technical decisions.
• Experience with public cloud technologies (e.g., AWS, Azure, GCP) is a plus.
• Excellent communication skills, able to translate technical concepts into business impacts.
• Proven experience mentoring engineers and fostering a culture of continuous improvement.
• Proactive problem-solver, with a passion for driving innovation aligned with business goals.

Our Tech Stack

• Java 21 μServices
• Spring Boot with Spring Cloud
• Dynamo DB
• Terraform
• Docker
• AWS Fargate
• Event Sourcing

About Marshmallow

We started Marshmallow when we found out how unfair insurance prices are for people who move to the UK. All because the industry hasn’t given this huge cohort of people a second’s thought, and isn’t set up to price them properly. 

We saw an opportunity to do things differently, so we made it our mission to back the ones who step outside the norm. Since we started, we’ve helped 100,000s of people get a fairer deal on their car insurance. Using technology, we serve people that are often overlooked by financial services companies, solving important problems for people who need it most. 

Engineering at Marshmallow

Our engineers are at the heart of the solutions. They work on product builds from start to finish, solving lots of challenges to help us build fast and scale up Our engineers cover a range of skills across frontend, backend, full stack, iOS and android and work alongside designers, data scientists, researchers and product managers within our product teams.

Our product teams include: the Growth team, the Efficiency team, and the Claims team (to name a few) Each team sets its own roadmap and actively pushes our codebase forward.

Perks of the job

• Flexi-office working – Spend at least 2 days a week with your team in our Budapest office. The rest is up to you Plus you have 4 weeks of Work From Anywhere to use, with no need to come to the office.
• Competitive bonus scheme - designed to reward and recognise high performance
• 4-week fully paid sabbatical after being with us for 4 years
• Learning and development – Personal budgets for books and training courses to help you grow in your role. Plus 2 days a year - on us - to further your skillset
• Mental wellbeing support – Access therapy and mental health sessions through Oliva
• SZÉP card - Budget to spend on meals, leisure and accommodation
• Medicover Blue Package - An exclusive pass to top-notch healthcare services
• All You Can Move membership OR Monthly BKK pass - Unleashing your inner fitness guru or having a hassle-free commute - we've got you covered
• Company-wide Marshmallow Engineering Hackathon twice a year

Plus a monthly team social budget, bi-weekly office lunches and Office tea, coffee and snacks

Our process

We break it up into 4 stages:

• Initial call with our Tech Talent Acquisition Specialist (30- 45 mins)
• An interview where you will discuss your previous experience with one of our Engineering leaders (1 hour)
• Tech assessment followed by a technical interview with one of our Tech Leads + one other Engineer (1,5 hours)
• A culture interview to check that your work style fits our processes and values (1 hour)

,[Drive Technical Excellence: Lead the design and implementation of innovative, secure, and performance solutions. Focus on redundancy, scalability, and system resilience while enforcing best coding practices and security protocols., Influence and Lead by Example: Mentor engineers, guide technical direction, and set high standards for the team, pushing for quality results without direct management responsibilities., Strategic Thinking: Align technical work with long-term business goals, evaluating build vs. buy decisions, investigating external vendors, and working closely with AWS or other cloud platforms to ensure scalable and cost-efficient solutions., Collaborate Cross-Functionally: Work with product managers, data scientists, and non-technical stakeholders to prioritize and deliver projects that meet both technical and business needs. Provide visibility into technical progress and translate complex concepts into actionable insights., Cross-Domain Problem Solving: Tackle complex challenges across multiple teams, proactively optimizing systems, and solving critical issues that balance technical and business constraints.] Requirements: Software engineering, Technical leadership, Backend, System design, Architecture, Mentoring, Java, Strategy, Public cloud technologies Additionally: Competitive bonus scheme, SZÉP card, Medicover Blue Package, Home office, Mental wellbeing support, Training budget, Flat structure, Small teams, International projects, Lunch card, Free coffee, Bike parking, Shower, Free snacks, Free beverages, In-house trainings, In-house hack days, Modern office, Startup atmosphere, Free breakfast, No dress code.

---