Senior Software Engineer (Golang)

Methodfi; Greater London; On-site; GBP 70,000 - 90,000; Full time

Job summary

A payment and software service provider is looking for a Senior Software Engineer to shape their technology platform in London. The role involves designing and developing core APIs, ensuring reliability, and supporting multiple engineering teams. Candidates should have 5+ years in backend systems, strong Golang expertise, and experience in cloud infrastructure. Key perks include flexible working hours, health support programs, and 25 days of annual leave. This provider is committed to diversity and creating an inclusive workplace.

Benefits

Flexible working hours

Health and mental support through GymPass

Extended maternity and paternity leave

Cycle-to-Work Scheme

Health and Life Insurance

Pension Scheme

25 days of Annual Leave

Office snacks every day

Friendly office environment in Central London

Qualifications

• 5+ years professional software development experience building backend systems.
• Strong knowledge of OOP principles and microservices architecture.
• Proven experience designing and implementing APIs.

Responsibilities

• Design, develop, and maintain core APIs and event-driven services.
• Collaborate with platform teams using cloud-native infrastructure.
• Participate in code reviews and mentor developers.

Skills

Golang expertise

REST/gRPC API design

Problem-solving skills

Agile/Scrum experience

Strong communication skills

Education

Degree in Computer Science or related field

Tools

AWS

Kubernetes

Terraform

Git

CI/CD pipelines

Job description

Overview

Hello! We're Teya.

Teya is a payment and software service provider, headquartered in London serving small, local businesses across Europe. Founded in 2019, we build easy to use, integrated tools that enable our members to accept payments and boost business performance.

At Teya we believe small, local businesses are the lifeblood of our communities.

We’re here because we don’t believe there’s a level playing field that gives small businesses with a fighting chance against the giants of the high street. We’re here because we see banks and legacy service providers making things harder for them. We don’t think the best technology or the best service should be reserved for those with the biggest headquarters. We’re here to fight for a future where small, local businesses can thrive, and to commit the same dedication they offer all of us.

Become a part of our story.

We’re looking for exceptional talent to join our mission. We offer a chance to create impact in a high-energy and connected culture, while benefiting from continuous learning opportunities, a supportive community which is proud to serve our mission, and comprehensive benefits.

Your Mission

As a Senior Software Engineer at Teya, you'll play a crucial role in shaping our technology platform and driving innovation across Europe. Working within a platform team, you'll design, develop, and maintain core APIs and event-driven services that power merchant data, subscriptions, and lifecycle management. Your work will be consumed by product teams across Teya, so you'll focus on reliability, performance, and ease of integration at scale. Your contributions will directly impact our merchants' success in an increasingly competitive landscape.

What You'll Do

• Build Platform Services: Take ownership of features throughout the full development lifecycle, designing and maintaining clean, secure, well-tested code that supports critical business needs with focus on scalability and reliability
• Design APIs & Event-Driven Systems: Create well-versioned APIs (REST/gRPC) and asynchronous workflows (queues, streams, webhooks) that other teams can easily consume, with strong focus on backwards compatibility, idempotency, and robust failure handling
• Work with Cloud Infrastructure: Collaborate with platform teams using cloud-native infrastructure (AWS, Kubernetes, Terraform, Helm) to ensure services are observable, secure, and easy to operate
• Enable Other Teams: Partner with engineering teams across Teya, gathering feedback and translating it into platform capabilities that accelerate their roadmaps. Collaborate with product, design, data science, security, and operations
• Mentor & Drive Quality: Participate in code reviews, mentor developers, define best practices, and contribute to CI/CD improvements while staying updated with trends in software engineering and fintech

Your Story

Required:

• 5+ years professional software development experience building backend systems and scalable architectures
• Experience working in platform or shared-services teams that support multiple engineering teams
• Strong Golang expertise with production experience (Java/Kotlin experience is a plus)
• Proven experience designing and implementing REST/gRPC APIs with proper versioning, authentication, and error handling
• Experience building high-throughput, low-latency services and event-driven systems (message brokers, streams, webhooks)
• Strong knowledge of OOP principles, microservices architecture, and distributed systems
• Hands-on experience with databases (SQL and NoSQL), Git, CI/CD pipelines, and cloud infrastructure (AWS, Kubernetes, Terraform)
• Strong problem-solving, communication, and mentoring skills
• Agile/Scrum experience and fluency in English

Nice to Have:

• Degree in Computer Science or related field
• Payments, fintech, or location/business recommendation platform experience
• Experience with data modeling in merchant domains, multi-tenant API platforms, or authorization systems (RBAC, ABAC, SpiceDB)
• Knowledge of cryptography or EMV

The Perks

• We trust you, so we offer flexible working hours, as long it suits both you and your team;
• Physical and mental health support through our partnership with GymPass giving free access to over 1,500 gyms in the UK, 1-1 therapy, meditation sessions, digital fitness and nutrition apps;
• Our company offers extended and improved maternity and paternity leave choices, giving employees more flexibility and support;
• Cycle-to-Work Scheme;
• Health and Life Insurance;
• Pension Scheme;
• 25 days of Annual Leave (+ Bank Holidays);
• Office snacks every day;
• Friendly, comfortable and informal office environment in Central London.

Teya is proud to be an equal opportunity employer.

We are committed to creating an inclusive environment where everyone regardless of race, ethnicity, gender identity or expression, sexual orientation, age, disability, religion, or background can thrive and do their best work. We believe that a diverse team leads to better ideas, stronger outcomes, and a more supportive workplace for all.

If you require any reasonable adjustments at any stage of the recruitment process whether for interviews, assessments, or other parts of the application—we encourage you to let us know. We are committed to ensuring that every candidate has a fair and accessible experience with us.