{"id":3887882,"url":"https://alion.io/job/mongodb-software-engineer-3-6","title":"Software Engineer 3","company":{"id":4211,"name":"MongoDB","domain":"mongodb.com","url":"https://alion.io/company/mongodb","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"B","score":79,"open_postings":87,"ghost_share":0,"stale_share":0.655,"repost_share":0,"time_to_fill_p50_days":69,"computed_at":"2026-11-06T05:58:05Z"}},"role":"Backend","role_family":"Backend","seniority":"middle","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":["Cork, Ireland","Dublin, Ireland"],"countries":["IE"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"CI/CD","optional":false},{"name":"Go","optional":false},{"name":"Kubernetes","optional":false},{"name":"AWS","optional":true},{"name":"Azure","optional":true},{"name":"GCP","optional":true},{"name":"Service Mesh","optional":true}],"status":"live","first_seen_at":"2026-11-06T17:31:27Z","employer_posted_date":"2026-11-06","last_verified_at":"2026-11-07T05:20:27Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"The Kubernetes teams make running MongoDB in and from Kubernetes so frictionless that it is the default database choice for cloud-native applications. Our operators let developers and platform teams provision, scale and operate MongoDB through Kubernetes-native APIs, in their own clusters or in MongoDB Atlas.\nYou will join the Kubernetes Capabilities squad. Our sister squad builds the shared platform layer of the MongoDB Controllers for Kubernetes; we build the capabilities on top of it that users actually adopt. That means bringing MongoDB features such as Search and Vector Search to Kubernetes, extending what our users can deploy and manage declaratively, and owning the Atlas Kubernetes Operator. Our work starts with a user problem and ends with a Kubernetes API that solves it.\nIn practice, we build a platform for other engineers. Our users are developers and platform teams who expect self-service, sensible defaults and APIs that behave predictably. If you have built an internal developer platform, a Kubernetes controller, or any system whose customers are other engineers, you will recognise the problems we work on.\nNo prior experience with MongoDB is required. You will meet most of the team during interviews, and we pride ourselves on being an inclusive, collaborative group that Builds Together. Our core engineering values are Context, Predictability, Transparency, Focus and Craftsmanship.\nThis role can be based in our Dublin office, Cork office or remotely within Ireland.\nThe role\nWe are looking for a Software Engineer to join the Kubernetes Capabilities squad and help decide which MongoDB capabilities our users get on Kubernetes and how they work. You will own significant capabilities from design to production, make sound technical decisions under ambiguity, and raise the engineering bar of the team through design, review and mentorship.\nExperience we value\nWhat matters most is that you have built platforms, not only operated them. We value experience from any of these backgrounds: \nBuilding Kubernetes controllers, operators, CRDs, admission webhooks or other extensions against the Kubernetes API\nBuilding internal developer platforms: self-service provisioning, golden paths, platform APIs, CLIs or developer portals used by other engineering teams\nBuilding developer-facing infrastructure products such as SDKs, managed services, CI/CD systems or cloud provisioning tooling\nResponsibilities\nLead the design and delivery of new capabilities in our Kubernetes operators, from technical design through production support\nWork with Product and the teams behind MongoDB features to turn them into Kubernetes-native APIs our users can adopt\nWrite technical designs that weigh trade-offs clearly and bring the team and stakeholders to a decision\nShape our platform APIs with our users in mind: predictable, self-service and safe to operate\nMentor engineers through pairing, code review and design feedback\nPartner with our platform squad, Support, Docs and other engineering teams, and help resolve complex customer issues\nImprove how the team works, including testing strategy, release quality and developer experience\nRequirements\nStrong core software engineering skills and several years building production software in a modern language; we mostly use Go\nProven experience building a platform for other engineers, such as Kubernetes controllers and operators, an internal developer platform, or developer-facing infrastructure products\nDeep working knowledge of Kubernetes, including its API model, reconciliation and the operational realities of running workloads on it\nExperience designing, testing and operating distributed systems in production\nA track record of leading projects through ambiguity and delivering them end to end\nStrong written communication, including technical design documents\nNice to have\nExperience with controller-runtime, kubebuilder or contributing to Kubernetes ecosystem projects\nExperience with multi-cluster Kubernetes, networking or service mesh\nExperience running stateful workloads or databases on Kubernetes\nExperience with a major public cloud provider\nWhat is in it for you\nGenerous compensation package (top-range salary, equity, comprehensive benefits)\nA diverse, highly collaborative team that values shipping fast and clean\nTime to learn on the job and grow into new technologies\nA high level of independence, focused on results rather than the appearance of work\nAbout MongoDB\nMongoDB is built for change, empowering our customers and our people to innovate at the speed of the market. We have redefined the data platform for the AI era, enabling builders to create, transform, and disrupt industries with software. MongoDB’s unified data platform, the most widely available, globally distributed data platform on the market, helps organizations modernize legacy workloads, embrace innovation, and unleash AI. Our cloud-native platform, MongoDB Atlas, is the only globally distributed, multi-cloud data platform and is available across AWS, Google Cloud, and Microsoft Azure.\nWith offices worldwide and over 67,000 customers, including AI-native startups and approximately 75% of the Fortune 100, relying on MongoDB for their most important applications, we’re powering the next era of software.\nOur compass at MongoDB is our Leadership Commitment, guiding how and why we make decisions, show up for each other, and win. It’s what makes us MongoDB. \nTo drive the personal growth and business impact of our employees, we’re committed to developing a supportive and enriching culture for everyone. From employee affinity groups, to fertility assistance and a generous parental leave policy, we value our employees’ wellbeing and want to support them along every step of their professional and personal journeys. Learn more about what it’s like to work at MongoDB, and help us make an impact on the world!\nMongoDB is committed to providing any necessary accommodations for individuals with disabilities within our application and interview process. To request an accommodation due to a disability, please inform your recruiter.\nMongoDB is an equal opportunities employer.\nReq ID: 3273603861","description_format":"text","description_chars":6171,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Equity","Parental leave"],"hiring_locations":[{"name":"Ireland","iso":"IE","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Databases & DBMS","Vector Search & RAG"],"lifecycle":[{"event":"open","at":"2026-11-06T20:14:54Z"}],"visa":[{"country":"IE","licensed_sponsor":true,"adverts_offering_sponsorship_24m":0,"sanctioned_now":false,"evidence":"Irish employment permits in 12 months: 45","filings_12m":45,"filings_prev_12m":6,"green_card_filings_12m":null,"median_offered_wage_usd":null,"route":"Employment permits","cap_exempt":false,"checked_at":"2026-11-06T22:37:57+00:00","sources":["Department of Enterprise, Trade and Employment: employment permits issued to companies"],"filings_for_role_12m":0}],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":69,"reasons":["conf:0","win:early","comp:brand"],"computed_at":"2026-11-07T05:27:50Z"},"pay":null,"html_url":"https://alion.io/job/mongodb-software-engineer-3-6","json_url":"https://alion.io/job/mongodb-software-engineer-3-6.json","meta":{"generated_at":"2026-11-07T05:27:50Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":13250,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-08T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":4211},"rest":"https://alion.io/mcp/rest/get_company?id=4211"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fmongodb-software-engineer-3-6"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fmongodb-software-engineer-3-6"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fmongodb-software-engineer-3-6"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/mongodb-software-engineer-3-6\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fmongodb-software-engineer-3-6"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3887882}},{"tool":"search_jobs","arguments":{"company":"mongodb.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3887882},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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