---
title: 'Senior Software Engineer, Agent Tracing at Sentry'
canonical: 'https://feeny.ai/job/senior-software-engineer-agent-tracing-sentry-vienna-pe66y9zv7rms'
type: 'job'
last_seen: '2026-09-11'
---

# Senior Software Engineer, Agent Tracing at Sentry

- **Company:** Sentry
- **Location:** Vienna, Austria
- **Employment:** full-time
- **Work type:** hybrid
- **Posted:** 2026-09-11
- **Last confirmed live:** 2026-09-11
- **Apply:** https://jobs.ashbyhq.com/sentry/c796cd46-d80c-4ea8-9b0d-0eecbfc1353e

## Job description

## About Sentry

Software runs the world and the pace is faster than ever. Sentry helps developers fix errors and performance issues before users notice, so teams can spend less time firefighting and more time building. Trusted by 200,000+ organizations, Sentry is today’s application monitoring standard and our team is building its AI-native future.

## About the role

Agents are becoming the default way developers ship LLM-powered software, and they are miserable to debug. A single run fans out across model calls, tool calls, retries, handoffs between agents, and multi-turn conversations that only make sense as a whole. When one goes wrong, the developer usually has a log line and a shrug. Sentry's [Agent Tracing](https://docs.sentry.io/product/agents/) turns that into something you can actually inspect: agent runs, tool calls, model interactions, token usage and cost, conversations you can replay message by message. As a Senior Software Engineer on the Telemetry Experience team, you'll own that product surface - Python/Django and Postgres on the backend, React and TypeScript on the frontend, sitting on top of Sentry's trace storage. You'll work with the SDK engineers who instrument the agent frameworks upstream and own everything customers touch downstream: the dashboards, the conversation views, the APIs, and the workflows that turn a confusing agent run into an obvious fix.

In this role you will

- Own projects end to end. Take a problem from a rough customer complaint through scoping, design, implementation across the stack, rollout, and measurement. You'll write the design doc, cut the work into shippable pieces, and stay with it until the numbers move
- Build the views developers debug agents in. Multi-agent workflows, conversation replay, cost and token breakdowns, the moment where a run failed and why. Making a deeply nested, wildly variable trace legible is a genuinely hard interface problem
- Make the data underneath fast and queryable. Filtering and sorting millions of conversations, getting cost calculation right, and designing APIs that both humans and other people's agents can use well
- Detect the failures worth flagging. We're expanding from showing developers what happened to telling them what went wrong - common agent failure classes surfaced as issues, not as something you have to go looking for
- Take the friction out of getting started. Setup should be trivial on any stack, whether a developer wires it up by hand or asks their coding agent to do it
- Collaborate daily with product managers, designers, SDK engineers, and other product engineers. You'll bring the technical perspective that makes a design better, explain constraints in terms of what they cost the user, and sweat the details other people skip: empty states, error messages, loading behavior, the edge case that only bites 2% of accounts

You’ll love this job if you

- You'd rather own an outcome than a ticket. You take ambiguous problems, decide what to build, drive it across team boundaries, and follow through after launch. Nobody has to hand you a spec
- You're obsessed with making an experience smooth. Friction offends you. You notice the extra click, the confusing label, the query that takes 400ms too long - and you fix them instead of filing them
- You solve problems for customers, not for the codebase. Sentry's users are developers, so you can read their bug reports, sit in their tooling, and tell the difference between what they asked for and what they need
- You communicate well in writing. Working across SDK teams, product, and design in a distributed company means your docs, PR descriptions, and updates do a lot of the work
- You want to build in a space that's still being figured out. Nobody has settled what agent observability should look like. You'd rather help decide that than implement someone else's finished answer.

## Qualifications

- 5+ years of professional experience building and shipping full-stack web applications
- Strong experience with React and TypeScript, and with Python (Django or similar) backed by a relational database such as PostgreSQL - depth in one side and real competence in the other is fine
- A track record of driving non-trivial projects end to end, including the parts that require getting other teams to agree with you
- Comfort designing and building data-heavy interfaces where the shape of the data is messy and the volume is large
- Excellent written and spoken English communication skills
- Experience leveraging AI-powered development tools to enhance productivity and code quality
- You live in the Vienna area or are willing to relocate for this role

Bonus points

- You've built something real with LLMs or agent frameworks and know their failure modes first-hand
- Familiarity with the application monitoring and observability space, or with OpenTelemetry
- Experience querying large-scale analytical data stores (ClickHouse, or similar)
- Experience building developer-facing products, SDKs, or public APIs
- A track record of contributing to open-source projects

We are obliged by law to quote the minimum wage of EUR 60,844,-- gross per year for this position, in accordance with the respective collective agreement (IT-KV). The salary that Sentry offers you is adjusted to the current market situation and will be above the IT-KV. A successful candidate will be eligible to participate in Sentry’s employee benefit plans/programs applicable to the candidate’s position (including incentive compensation, equity grants, paid time off, and group health insurance coverage). See [Sentry Benefits](https://sentry.io/careers/) for more details about the Company’s benefit plans/programs.

## Equal Opportunity at Sentry

Sentry is committed to providing equal employment opportunities to its employees and candidates for employment regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, veteran status, or other legally-protected characteristic. This commitment includes the provision of reasonable accommodations to employees and candidates for employment with physical or mental disabilities who require such accommodations in order to (a) perform the essential functions of their jobs, or (b) seek employment with Sentry. We strive to build a diverse team, with an inclusive culture where every teammate can thrive. Sentry is an open-source company because we believe that everyone, everywhere, should have the ability and tools to make great software. Software should be accessible. That starts with making our industry accessible. If you need assistance or an accommodation due to a disability, you may contact us at accommodations@sentry.io. Want to learn more about how Sentry handles applicant data? Get the details in our [Applicant Privacy Policy](https://sentry.io/careers/applicantprivacy/).

## About Sentry

## Company Overview
- **One-liner**: Sentry is the leading application performance monitoring and error-tracking platform that helps developers diagnose, fix, and optimize code in real-time.
- **Entity Type**: Private (Series E)
- **Headquarters**: San Francisco, California, USA
- **Founded**: 2012
- **Founders**: David Cramer, Chris Jennings

## Core Business
- **Primary industry**: Application Performance Monitoring (APM) and Error Tracking Software
- **Target customers**: B2B; developers and engineering teams at organizations of all sizes, from startups to large enterprises (200K+ organizations)
- **Mission or purpose**: To give every developer the tools to build better software, faster, by making debugging and performance monitoring accessible and indispensable.

## Products & Services
- **Sentry Error Tracking**: The core product — real-time error monitoring that captures, aggregates, and surfaces software bugs across 100+ coding languages and frameworks. [sentry.io](https://sentry.io/welcome/)
- **Sentry Performance Monitoring**: Traces slow transactions, API calls, and database queries to help developers optimize application speed and reliability. [sentry.io](https://sentry.io/welcome/)
- **Sentry Session Replay**: Video-like replays of user sessions to see exactly what happened before, during, and after an error. [sentry.io](https://sentry.io/welcome/)
- **Sentry Profiling**: Continuous code profiling to identify performance bottlenecks at the function level. [sentry.io](https://sentry.io/welcome/)
- **Sentry Crash Reporting (Cocoa/Android)**: Native SDKs for mobile error tracking and performance monitoring. [sentry.io](https://sentry.io/welcome/)
- **Seer (AI Debugging Agent)**: An AI-powered tool that uses Sentry context (logs, commits, traces) to automatically root-cause issues and generate merge-ready patches. [sentry.io](https://sentry.io/welcome/)
- **Sentry MCP Server**: Integrates with coding agents to bring full debugging context directly into the developer's workflow. [sentry.io](https://sentry.io/welcome/)

## Market Standing
- **Valuation/Market Cap**: Not publicly disclosed (last known funding round was $217M total raised)
- **Key Metric**: $217M total funding raised across 6 rounds; processes 190B+ events daily; serves 200K+ customers and 4M+ total users across 146 countries [sentry.io](https://sentry.io/about/)
- **Notable Investors/Partners**: Backed by prominent venture capital firms (specific names not listed on the about page, but the company has raised significant capital). Key integrations include GitHub, Slack, Jira, and Linear. [sentry.io](https://sentry.io/welcome/)
- **Growth Signals**: Acquired Codecov in December 2022 to expand into code coverage; processes 790B+ events per month; has 200+ employees across offices in San Francisco, Vienna, Toronto, Amsterdam, New York, and Sydney. [sentry.io](https://sentry.io/about/)

## Competitive Advantages
- **Developer-First DNA**: Built by developers for developers, with an open-source heritage that fosters deep trust and community adoption.
- **Unified Observability Platform**: Uniquely connects errors, logs, session replays, traces, profiles, and metrics under a single trace ID, providing end-to-end context that competitors like Datadog or New Relic offer as separate products.
- **AI-Native Debugging**: Seer, the AI debugger, goes beyond simple alerting to automatically root-cause issues and generate patches, a significant moat in the AI-assisted development space.
- **Massive Scale & Community**: Loved by millions of developers and 200K organizations, with 190B+ events processed daily, creating a powerful network effect and data advantage for AI models. [sentry.io](https://sentry.io/about/)

## Strategic Focus
- **AI-Powered Developer Tools**: Deep investment in AI (Seer, AI code review, AI evals) to move from passive monitoring to proactive debugging and automated fixing.
- **Unified Observability**: Continuing to break down silos between errors, performance, logs, and replays into a single, trace-connected experience.
- **Platform Expansion**: Growing beyond error tracking into a full-stack observability and developer productivity platform, including code coverage (via Codecov acquisition) and AI-assisted development.
- **Enterprise Scale**: Building out capabilities for large organizations (enterprise product marketing, solutions engineering, security compliance) while maintaining a strong developer experience.

## Why Work Here
- **Culture & Values**: Emphasizes "pixels matter" (attention to detail), constructive feedback, iteration, and valuing people from diverse backgrounds. The culture is described as relatively small, fast-growing, and highly influential. [sentry.io](https://sentry.io/careers/)
- **Remote/Hybrid Policy**: Offers roles across multiple global offices (San Francisco, Toronto, Vienna, Amsterdam, New York, Sydney) with a mix of in-office and remote positions. The careers page lists specific locations for each role. [sentry.io](https://sentry.io/careers/)
- **Notable Perks**: Competitive compensation + equity, flexible PTO, paid parental leave, medical/dental/vision insurance, 401k plan (US), commuter benefits, professional development stipend, charitable matching program, and a well-stocked office (including "a minimum of six different brands of sparkling water"). [sentry.io](https://sentry.io/careers/)
- **Engineering Culture**: High ownership and autonomy; engineers influence product, brand, and culture. The company is known for shipping high-quality code and has a strong open-source ethos. [sentry.io](https://sentry.io/careers/)
- **Diversity & Inclusion**: Committed to equal employment opportunity and providing reasonable accommodations. Explicitly states that software should be accessible, starting with making the industry accessible. [sentry.io](https://sentry.io/careers/)

## Sources
1. [sentry.io](https://sentry.io/about/)
2. [sentry.io](https://sentry.io/careers/)
3. [sentry.io](https://sentry.io/welcome/)
4. [jobs.ashbyhq.com](https://jobs.ashbyhq.com/sentry)
5. [greatplacetowork.com](https://www.greatplacetowork.com/certified-company/7024898)

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