Senior Golang Full Stack Engineer

October 5, 2026

Remote

Senior

Poland

Worth knowing

English is required

Description

Avenga is hiring a Senior Full-Stack Engineer to help build a FinOps and IT Asset Management platform that brings together cloud, SaaS, and AI usage data. This is a genuinely hands-on role spanning modern React/TypeScript applications, Go-based backend services, and Python connectors integrating with third-party APIs. You will join a cross-functional product team of engineers, product partners, and ITAM/FinOps stakeholders, improving reliability, scalability, observability, and developer experience.

Responsibilities

Build polished, accessible, and well-tested React/TypeScript interfaces for cost and usage dashboards and platform administration
Design, develop, and maintain scalable Go-based microservices and REST/gRPC APIs
Build and evolve Python connectors and collectors for AWS, Azure, GCP, LLM providers, and SaaS vendors
Extend the established connector pipeline across credential management, execution, normalisation, persistence, and presentation
Ensure every new integration follows consistent product patterns, from connector tile through creation and edit flows
Normalise vendor cost and usage data to the FOCUS standard, including AI token- and credit-based billing data
Model and persist data using SQL, Python ORMs, and Databricks where appropriate
Improve platform observability, reliability, performance, scalability, and security
Deploy and support services in AWS; work with Azure and GCP as integration targets and data sources
Use Docker, Kubernetes, CI/CD, ArgoCD, and feature flags to ship changes safely and reliably
Use AI coding tools as part of daily delivery, while treating prompts, skills, and internal documentation as reviewable artefacts
Turn repeatable work into reusable skills, agents, and documented playbooks that improve the whole team's effectiveness

Requirements

5+ years of professional software engineering experience, including delivery in a consulting, client-facing, or contract environment
Strong, recent hands-on experience building production web applications with React and TypeScript
Production backend experience with Go, including at least one year of commercial Go development
Production experience with Python, particularly for API integrations, data collection, or backend services
Proven experience integrating third-party REST APIs with OAuth or API-key authentication, pagination, rate limiting, retries, idempotency
Strong understanding of REST APIs, microservices, distributed systems, and service-to-service integration patterns
Solid SQL and data-modelling experience, including practical work with an ORM such as SQLAlchemy or Django ORM
Working knowledge of Docker, Kubernetes, CI/CD, Git, and modern code-review and testing practices
Experience working in Agile teams using Jira and Confluence as part of the normal development workflow
Confidence using AI-assisted engineering tools while critically reviewing, testing, and validating generated code
Strong written and spoken communication skills, a pragmatic problem-solving mindset, and ability to ramp up quickly
FinOps, cloud cost management, cloud billing, usage analytics, or familiarity with the FOCUS standard
IT Asset Management or software-licensing domain knowledge; experience with FlexNet Manager Suite is a plus
Experience with AWS Cost and Usage Report, Azure Cost Management, GCP billing exports, or comparable cloud billing APIs
Familiarity with LLM provider APIs, usage or analytics endpoints, and token- or credit-based billing models
Experience with gRPC, Protocol Buffers, Databricks, event-driven architectures, or messaging platforms
Strong AWS experience, including deploying and supporting production applications
Experience with Kubernetes Jobs, ArgoCD, Helm, GitOps practices, or feature-flag platforms such as Split.io
Experience with n8n or similar workflow-automation tools
Hands-on experience with observability, monitoring, distributed tracing, and production reliability practices
Experience building internal developer tooling, agent skills, MCP servers, or reusable AI-enabled engineering workflows
Previous experience in a SaaS product organisation

Conditions

Cross-functional product team of engineers, product partners, and ITAM/FinOps stakeholders
Team follows established connector patterns and platform conventions while improving developer experience
Equal opportunities regardless of race, ethnicity, gender identity, disability, age, or religion
Respectful environment where everyone can be themselves and share their ideas

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