{"id":3153272,"url":"https://alion.io/job/emcd-senior-go-developer-iam","title":"Senior Go Developer (IAM)","company":{"id":730,"name":"EMCD","domain":"emcd.io","url":"https://alion.io/company/emcd","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Manatal","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Belgrade, Serbia"],"countries":["RS"],"hiring_countries":["RS"],"hiring_countries_total":1,"salary":null,"salary_estimate":null,"experience_years_min":4,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Go","optional":false},{"name":"IAM","optional":false},{"name":"Keycloak","optional":false},{"name":"Testcontainers","optional":false},{"name":"Apache Kafka","optional":true},{"name":"gRPC","optional":true},{"name":"Java","optional":true},{"name":"OpenTelemetry","optional":true},{"name":"PostgreSQL","optional":true},{"name":"Redis","optional":true}],"status":"closed","first_seen_at":"2026-10-23T13:31:43Z","employer_posted_date":"2026-10-23","last_verified_at":"2026-10-28T21:44:50Z","board_verified":false,"closed_at":"2026-10-28T21:44:50Z","days_open":5,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":5},"description":"EMCD is a global crypto ecosystem building products across mining, wallets, payments, custody, and digital asset infrastructure.\nWe are looking for a Senior Go Developer to join the IAM team and take ownership of the services behind authentication, registration, MFA, identity, and user access across EMCD products.\nThe role combines hands-on backend development with technical ownership of the IAM domain, including Keycloak-based infrastructure and legacy Go services.\nResponsibilities\nOwn the architecture of the IAM domain, including Keycloak-based infrastructure and legacy Go services\nMake architectural decisions and document them through ADRs\nBreak down larger initiatives into repository-level tasks, estimate delivery, and take ownership of key milestones\nReview code and support the technical development of engineers within the team\nOwn production reliability for authentication and registration flows: investigate incidents, write postmortems, and drive follow-up actions to completion\nWork closely with CISO, Compliance, Support, and product teams including Coinhold, Mining, and Backoffice\nImprove existing IAM services while reducing technical debt and simplifying legacy components\nRequirements\n4+ years of production development experience with Go\nStrong understanding of OAuth 2.0 and OpenID Connect at protocol level: Authorization Code + PKCE, refresh token rotation, token exchange, Direct Grant and its risks, JWT signing, claims, and resource-side validation\nProduction experience with Keycloak: realms, clients, authentication flows, required actions, identity brokering with Google, Apple, or external OIDC providers, and major-version upgrades\nStrong experience with MFA: TOTP, SMS and email OTP, push authentication, passkeys and WebAuthn, including origin / RP ID specifics for web and mobile\nUnderstanding of step-up authentication and trust levels using LOA / ACR\nExperience managing user sessions and devices, session revocation, session hijacking protection, and secure cookie configuration\nStrong Go backend experience. Our stack includes echo, pgx, goose, Redis, Kafka (segmentio/kafka-go), gRPC, protobuf, and OpenTelemetry\nStrong PostgreSQL knowledge: schema design, indexes, JSONB, query performance at scale, and zero-downtime migrations\nExperience with event-driven systems and patterns such as transactional outbox, idempotency, retries, and DLQ\nExperience with hexagonal architecture and integration testing using testcontainers\nWhat We Offer\nFully remote work from anywhere in the world\nFlexible working hours focused on results\n20 paid vacation days + 12 additional bonus days\n100% paid sick leave\nPaid English lessons\nSupport for courses, certifications, and professional training\nTechnical ownership of a core IAM domain used across multiple EMCD products","description_format":"text","description_chars":2801,"description_truncated":false,"requirements":{"experience_years_min":4,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Flexible schedule"],"hiring_locations":[{"name":"Serbia","iso":"RS","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Crypto Exchanges","Crypto Wallets","Mining & Staking"],"lifecycle":[{"event":"open","at":"2026-10-23T13:31:43Z"},{"event":"close","at":"2026-10-28T21:44:50Z"}],"visa":[],"liveness":null,"pay":null,"html_url":"https://alion.io/job/emcd-senior-go-developer-iam","json_url":"https://alion.io/job/emcd-senior-go-developer-iam.json","meta":{"generated_at":"2026-10-29T01:52:58Z","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":2884,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-30T00:00:00Z"}},"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":730},"rest":"https://alion.io/mcp/rest/get_company?id=730"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Femcd-senior-go-developer-iam"},{"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%2Femcd-senior-go-developer-iam"},{"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%2Femcd-senior-go-developer-iam"},{"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/emcd-senior-go-developer-iam\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Femcd-senior-go-developer-iam"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3153272}},{"tool":"search_jobs","arguments":{"company":"emcd.io","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3153272},"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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