Senior Software Engineer - ProcessOut

3+ months agoLondon, United Kingdom

We're is one of the most exciting and valuable fintechs in the world, with our Series D taking our valuation to $40 billion. Our mission is to enable businesses and their communities to thrive in the digital economy. We're the strategic payments partner for some of the best known fast-moving brands globally such as Wise, Hut Group, Sony Electronics, Homebase, Henkel, Binance, Klarna and many others. Purpose-built with performance and scalability in mind, our flexible cloud-based payments platform helps global enterprises launch new products and create experiences customers love. And it's not just what we build that makes us different. It's how.

We empower passionate problem-solvers to collaborate, innovate and do their best work. That's why we're number 9 on the Forbes Cloud 100 list and on Glassdoor's list of Top 10 fintechs to work for. And we're just getting started. We're building diverse and inclusive teams around the world - because that's how we create even better experiences for our merchants and our partners. And we need your help. So, join us to build tomorrow, today.

Senior Software Engineer at

We are a team responsible for maintaining and evolving a Payment Orchestration Platform called ProcessOut. This platform was acquired by in March 2020 and is already powering many large, famous brands like Glovo, NordVPN, and Bolt (with many more that we can't name, and even more to come).

We are a self-sufficient team that operates in a fully agile way. We are supported by our very own Product and DevOps teams, and we build and evolve our product together.

When it comes to technical stack, we are hosted in AWS, use EKS and our primary development language is Go. As we always strive to use the best tool for the job, we use a combination of Redis, DynamoDB, and Postgres for persistence layer, and REST, gRPC, and queues for communication.

We are experiencing constant growth in the number of handled transactions, new clients, and integrations. That's why we pay very close attention to the elegant design and scalability of the platform. We are looking for dedicated engineers who would like to join us on our journey.

About You

    • 3 years software development experience in Go
    • Know your way around web-related tech (HTTP, TLS, proxies, API conventions...)
    • Worked with RESTful APIs and with gRPC
    • Experience deploying applications as a part of a service-oriented architecture
    • Curious and unafraid of digging deeper to understand how systems of all kinds work
    • Keen to communicate with third-party gateways from a technical point of view as well as to maintain the best relationship as possible
    • Knowledge in the payment ecosystem
    • Worked on critical services
    • Some basic knowledge about ElasticSearch

What you will be doing
    • Working together with our backend engineers and DevOps engineers on scaling our platform.
    • Contributing to services and overall architecture by discussing, putting forward ideas on enhancements, and actively contributing to our codebases.
    • Setting out standards and mentoring more junior team members.
    • Cooperating with the Product team on designing, building, and releasing new features.

    • If you don't meet all the requirements but think you might still be right for the role, please apply anyway. We're always keen to speak to people who connect with our mission and values.


What we stand for

At, everything starts with our values, including the experience we offer our people.


We supercharge your professional growth with career development programs and leadership training. You can learn your way, with tailored pathways and online platforms. And be inspired at relevant conferences.


We don't stop at 'good' here. We strive for excellence amongst our teams every day and recognize colleagues who take it to the next level through our quarterly peer-nominated Hero awards.


We're proud of our global connections and inclusive environment. So we champion this through our colleague-led community groups and celebrate many cultural events together.

Want to see us in action?

Take a peek inside here.

More about

Our technology makes payments seamless. We provide the fastest, most reliable payments in more than 150 currencies, with in-country acquiring, world-class fraud filters and reporting, through one API. And we can accept all major international credit and debit cards, as well as popular alternative and local payment methods. launched in 2012, and we now have a team of 1800 people across 19 international offices. To date, we've raised a total of $1.8 billion, with our Series D valuing us at $40 billion.

We believe in equal opportunities

We work as one team. Wherever you come from. However you identify. And whichever payment method you use.

Our clients come from all over the world - and so do we. Hiring hard-working people and giving them a community to thrive in is critical to our success.

When you join our team, we'll empower you to unlock your potential so you can do your best work. We'd love to hear how you think you could make a difference here with us.

We want to set you up for success and make our process as accessible as possible. So let us know in your application, or tell your recruiter directly, if you need anything to make your experience or working environment more comfortable. We'll be happy to support you.

Client-provided location(s): London, UK
Job ID: checkout-6a14f693-6849-4ac5-ba60-8b5825a1c557

Perks and Benefits

  • Professional Development
    • Tuition Reimbursement
    • Learning and Development Stipend
    • Promote From Within
    • Mentor Program
    • Access to Online Courses
    • Lunch and Learns
  • Vacation and Time Off
    • Paid Vacation
    • Paid Holidays
    • Personal/Sick Days
    • Leave of Absence
    • Paid Family Leave
  • Office Life and Perks
    • Flexible Work Hours
    • Remote Work Opportunities
    • Commuter Benefits Program
    • Casual Dress
    • Pet-friendly Office
    • Happy Hours
    • Snacks
    • Diversity, Equity, and Inclusion Program
    • Company Outings
  • Health and Wellness
    • Health Insurance
    • Dental Insurance
    • Vision Insurance
    • Life Insurance
    • Wellness Program
    • Fitness Subsidies
  • Financial and Retirement
    • 401(K)
    • Pension
    • Performance Bonus
    • Relocation Assistance