Senior Backend Developer ( Serverless/Python)

Austin Fraser; Belfast; Remote; GBP 100,000 - 120,000; Full time

Job description

Senior Software Engineer - Server-less Python Fully remote role

Salary: £100k+

About the Company:

Our client is a rapidly scaling, VC-backed technology company focused on delivering cloud cost optimization and FinOps solutions to enterprises and MSPs operating across hybrid and multi-cloud environments. Founded over a decade ago and recently bolstered by strategic acquisitions, the business has made a deliberate shift from bespoke cloud tooling to a productized cloud ROI platform - driven by structured cost data, AI/ML insights, and seamless integrations.

Our client is a proud member of the FinOps Foundation and a key player in emerging BillOps trends. They're building out a best-in-class engineering function to deliver the next phase of growth - and this role will play a central part.

The Role:

This is an opportunity to be one of the first hires in a newly formed UK/Northern Ireland engineering team, acting as a proof-of-concept hire for a long-term buildout. The immediate need is for a hands-on Senior Backend Developer with strong experience in serverless AWS architecture, Python-based microservices, and distributed systems.

You'll join a remote-first team that spans across the US and the UK, collaborating through Slack and working with autonomy and speed. This role is pivotal in shaping the product's backend foundation - particularly for high-scale, data-driven APIs and event-driven infrastructure.

Key Responsibilities:

1. Design and develop cloud-native backend services using Python and AWS Lambda
2. Build scalable microservices and event-driven systems using SQS, SNS, and EventBridge
3. Contribute to API development (REST/GraphQL) and data integration pipelines
4. Collaborate with cross-functional teams on architecture and system design
5. Interface with frontend engineers (Vue.js stack) and data platform engineers (Snowflake, Airflow)
6. Help define and implement CI/CD pipelines and observability practices
7. Support a feedback-driven culture focused on iterative delivery and continuous improvement
8. Communicate technical plans clearly to both technical and non-technical stakeholders

Essential Criteria:

1. 8-10+ years of software engineering experience, ideally in a SaaS or cloud-first environment
2. Strong Python backend development experience
3. Deep understanding of AWS serverless tools (Lambda, DynamoDB, API Gateway, etc.)
4. Experience building distributed systems and event-driven architecture
5. Familiarity with GraphQL APIs and scalable API design
6. Exposure to cloud observability (tracing, metrics, logging) and DevOps workflows
7. Comfortable working in Slack-based, fast-feedback environments
8. Excellent communication skills and ability to work across regions

Desirable Experience:

1. Experience with time-series data and cost intelligence platforms
2. Familiarity with Snowflake, Airflow, DBT, or other data platform technologies
3. Background in data-centric product development or FinOps tooling
4. Exposure to ML-powered querying, analytics, or optimization
5. Experience in scaling microservices across hybrid/multi-cloud environments

Why Join:

1. Be one of the first strategic hires in the UK/Northern Ireland for a high-growth cloud optimization platform
2. Work directly with the platform architect to shape future technical direction
3. Join a well-funded company actively investing in platform engineering and analytics talent
4. Influence hiring strategy and help define the structure of a future delivery team in NI
5. Collaborate with high-calibre peers across three continents
6. Remote-first culture with flexibility and autonomy
7. Opportunity for growth into team leadership or architectural influence as the platform scales

How to Apply:

If you believe you meet the criteria for this role and are excited about the opportunity to join a product-led team with real momentum, please apply via this link. Alternatively, you can reach out to Phil Gamble directly for an informal chat via LinkedIn or WhatsApp.