Job Description

About the Role

Our client is seeking a Senior Site Reliability Engineer to enhance observability practices, boost system reliability, and support high availability across its platforms. This role involves close collaboration with engineering and infrastructure teams, combining software development with systems expertise to deliver dependable, observable, and efficient services.

Key Responsibilities

Observability Leadership: Enhance telemetry collection and processing using OpenTelemetry, prioritizing actionable and cost-efficient metrics and traces.
Reliability Standards: Guide teams in defining and adopting SLIs/SLOs and foster a culture of service ownership.
Incident Management: Lead incident response efforts, facilitate post-incident reviews, and drive implementation of long-term solutions.
Infrastructure Automation: Use tools such as Pulumi, Terraform, or AWS CDK to manage cloud infrastructure and CI/CD pipelines.
Software Development: Create tools and automation in TypeScript (with optional Rust). Contribute to shared libraries and internal platforms.
Mentorship & Collaboration: Support and mentor other engineers, promoting a reliability-focused mindset across teams.
Continuous Improvement: Explore innovative tools and practices in observability and reliability; lead proof-of-concepts and improvement initiatives.

Required Skills & Experience

Proficiency in TypeScript or similar programming languages.
Strong knowledge of OpenTelemetry and observability tools (e.g., Datadog, Grafana).
Solid grasp of SRE principles: SLIs/SLOs, automation, monitoring, and incident response.
Hands-on experience with AWS services (e.g., Lambda, ECS, S3, DynamoDB).
Proficient with Linux, command-line tools, and system-level debugging.
Experience using infrastructure-as-code tools such as Pulumi or Terraform.
Familiarity with Kubernetes, CI/CD pipelines, and automated deployment strategies.
Strong analytical and problem-solving abilities with attention to detail.

Nice to Have

Experience with Rust or Go.
Deep understanding of trace sampling and scaling OpenTelemetry.
Track record of reducing observability or cloud infrastructure costs.
Familiarity with Google Cloud Platform.
Background in retail technology environments.

Working Style & Values

This role suits someone who:

Takes ownership and builds trust.
Communicates openly and supports teammates.
Is curious and continuously looks for ways to improve.
Embraces change and approaches challenges with flexibility.
Thinks long-term and works collaboratively across teams.
See more
Role tech stack
OpenTelemetry


AWS


TypeScript


Life at
Haystack
Browse all roles
Culture overview
We've built the Haystack team on a foundation of solid values and ethics. Our environment is relaxed and enthusiastic; informal and methodical; anti-corporate and highly driven.
Our people have a curiosity for all things tech and are driven by making an impact each day. The Haystack team all bring their own personality and creativity into the dynamic of our company.
We're enthusiastic and ambitious as hell. The only thing flat about us is our company structure. We give everyone responsibility and don't waste time and energy on micromanagement.
Tech recruitment is stuck in the dark ages. But it doesn't need to be. The reality of today is that techies hold all the cards. It's time for a better way to do things.
Besides our impressive array of freshly watered office plants, we provide generous holidays, social events and all the digital equipment that you need to excel in your role.
A combination of decades of experience in recruitment, a strong foundation in technology and our enthusiastic, ambitious nature creates an environment rife for success.
See more
Employee benefits
Bonus Scheme
Flexible Hours
Flexible Working
Free Food
Free Parking
Laptop
Pension
Sabbatical Leave
Office vibe
BEER FRIDGE
CITY CENTRE
FRIDAY DRINKS
HACKATHONS
OFFICE DOG
OPEN PLAN
SOCIAL EVENTS
Location
Sorry, we have no imagery here.


Sorry, we have no imagery here.


Sorry, we have no imagery here.


Sorry, we have no imagery here.


Sorry, we have no imagery here.


Sorry, we have no imagery here.


Map
Satellite
Keyboard shortcuts
Map data 2025 Google
Terms
Report a map error
Tech at
Haystack
Go to profile
Leadership
Mike Davies
Co-founder
Tech overview
We're on a mission to connect the world's tech talent with employers that matter to them and underpinning that mission is our product. The Haystack app has been built for techies, by techies and we're passionate about delivering high-quality features that our users actually want to use. As part of the tech team, you'll have a direct impact on both the Haystack App and the Haystack Employer Dashboard and will have exposure to the full end-to-end solution.
Our core tech stack is made up of React Native, TypeScript, AWS, MongoDB plus a few others and we use Figma to design and prototype. We're constantly on the lookout for great product people, that love to get stuck into a tech challenge and value autonomy.
Sound interesting? Join our talent pool and we'll keep you in the loop with any new opportunities.
See more
Engineering principles
AGILE PROCESS
CODE REVIEWS
COLLECTIVE CODE OWNERSHIP
COMMUNICATION AND COLLABORATION
CONTINUOUS DELIVERY
CONTINUOUS DEVELOPMENT
CONTINUOUS INTEGRATION
OPEN SOURCE CONTRIBUTOR
RAPID RELEASE CYCLES
REFACTORING
SCRUM
UNIT TESTING
Company tech stack
Adobe Illustrator


Adobe XD


Android


CSS 3


D3.js


Docker


.Net Core


Figma


Git


GraphQL


HTML5


iOS


JavaScript


Kanban


See more