Software Engineer (Web SDK)

Up to BGN 67,000salary on a full time, permanent employment contract Fully remote working within Bulgaria! 33 Days Paid Leave and Benefits High-growth SaaS product trusted by major global sports brands Modern stack, great tooling, AI-first engineering culture Werelooking for engineers who take initiative, spot opportunities, and move ideas forward proactively. Builders who are excited to use AI as a core part of how they work, think from first principles, and keep things simple not people who just want to hand-craft every line of code.

Youllbe hands-on in the Web SDK and backend services that support it, working on real features used by major sports and media organisations, and using AI heavily to design, build and refine solutions. ABOUT US

Storyteller is a high-growth B2B SaaS platform that lets companies integrate Stories into their own apps and websites. Popularised by Instagram and Snapchat, Stories boost engagement,retentionand revenue for our clients.

Our platform includes SDKs for Web, iOS and Android, publishing tools,analyticsand ad support giving enterprises a complete Stories solution in days. We work with globally recognised sports and media brands, andyoullsee your work used live by millions. About the Role

Youlljoin the team responsible for our Web SDK and the services it talks to. The SDK is how customers embed fast, beautiful, interactive Stories experiences into their own products, so integration quality, performance and developer experience really matter.

This is ahands-on coding role, but not a shut the door and code in isolation one:

• Youlluse AI tools by default to explore,scaffoldand refactor.

• Youllthink in terms of problems,constraintsand outcomes, not just tickets.

• Youllcare about how easy we are to integrate with as much as how elegant the code looks.

Youwontbe managing people or owning a team but you will be expected to own your work end-to-end, contribute to how we solve problems, and help us keep raising the bar. RESPONSIBILITIES

Build and ship features

• Own features end-to-end: understand the problem, design a simple solution, build it (often with AIassistance), test it, and refine based on feedback.

• Improve performance, reliability and developer ergonomics of the Web SDK and supporting services.

• Debug tricky issues across the SDK,backendand browser using logs,metricsand good hypotheses rather than guesswork.

Solve real customer problems

• Work with Product and Delivery to understand real customer use-cases and constraints.

• Propose simple, pragmatic solutions instead of over-engineering.

• Help streamline the integration experience so partners can get to first story live quickly and safely.

Improve developer experience

• Enhance documentation, code examples, and integration guides, often using AI to draft and then editing for clarity.

• Identifyfriction points for integrators and proactivelychampionimprovements.

• Make small, continuous DX improvements (tooling, scripts, templates) rather than waiting for a big clean-up project.

Engineering excellence

• Use AI tools by default for exploration, scaffolding and refactors and then verify outputs with tests, types, and your own judgement.

• Use first-principles thinking to cut through complexity: start from the goal and constraints, choose the simplest thing that works, and be willing todeleteyour own code when a better approach appears.

• Participate in thoughtful code reviews: give clear, kind, direct feedback and be open to having your own ideas challenged.

• Help improve CI pipelines, testsuitesand dev scripts so the whole team moves faster and more safely over time.

• Maintain high ownership and follow-through from idea torelease:surface blockers early, communicate clearly, and finish what you start.

QUALIFICATIONS

Whatwerelooking for

• 24 years of hands-on experience with TypeScript/JavaScriptin production environments.

• Strong knowledge of React, Node.js or similar modern frontend frameworksyourecomfortable working across browser and server.

• Familiarity withAPIs/HTTP, performance tuning, andSQL/NoSQLbasics.

• Aproactive mindset you look ahead,anticipateproblems, and propose solutions instead of waiting to be told what to do.

• AI-native working styleyourecomfortable adopting new tools early, especially AI-assisted coding, and you see AI as the default starting point rather than a last resort.

• Clear reasoning and trade-off thinking you can explain why you chose one approach over another in simple language.

• Strong written and verbal communicationfor remote collaboration.

• Reliability you deliver on commitments, surface blockers early, and take responsibility for the quality of your work.

Youdontneed to have built a Web SDK before, but you should be comfortable working on libraries and APIs that other developers depend on. Nice to have

• Experience building SDKs,librariesor developer tools.

• Experience with performance tuning (bundle sizes, loading strategies, caching) in web apps.

• Open-source contributions, sideprojectsor technical write-ups that show how you think.

• Interest in sports,mediaor content tech.

Is this You?

This role willlikely suityou if:

• You enjoy figuring out the simplest way to solve a real problem more than endlessly polishing code.

• Yourehappy to lean on AI for a lot of the heavy lifting, and focus your energy on decisions,structureand correctness.

• You like understanding how your work is used by other developers and care about making their lives easier.

Itprobably isntright for you if:

• Your ideal day is working alone perfecting hand-written code andyourereluctant to use AI or share ownership.

• Youmainly wantto critique AI-generated code or architecture from a distance rather than ship small, concrete improvements regularly.

Recruitment Process

We keep the process straightforward and respectful of your time.

1. Hiring Manager Conversation (2030 mins)

A short call to get to know you, share more about Storyteller and the Web SDK, and answer your questions. No coding.Wellboth aim to decide whether it makes sense to go deeper.

2. Paid Take-home Task (~60 mins)

A small, focused task you can do in your own time. We compensate you for completing it regardless of the outcome.

Youre welcome to use AI tools wereinterested in how you reason, how you verify and simplify, and how you trade off options, not in how much you type.

3. Review and CTO Interview (6075 mins)

Wellreview your submission together, dig into your decisions, andyoullmeet Dave (CTO).Welltalk about how you approach problems, how you use tools like AI, and how you like to work.

Andthatsit.

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