{"id":2849633,"url":"https://alion.io/job/epassi-python-backend-developer","title":"Python Backend Developer","company":{"id":1960493,"name":"Epassi","domain":"epassi.com","url":"https://alion.io/company/epassi-com","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Jobylon","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Heerenveen, Netherlands"],"countries":["NL"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":60000,"max_usd":103000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":62},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Amazon EKS","optional":false},{"name":"AWS","optional":false},{"name":"CI/CD","optional":false},{"name":"CircleCI","optional":false},{"name":"Django","optional":false},{"name":"FastAPI","optional":false},{"name":"Flask","optional":false},{"name":"GitHub Actions","optional":false},{"name":"GitLab CI","optional":false},{"name":"Kubernetes","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Pytest","optional":false},{"name":"Python","optional":false},{"name":"Rest API","optional":false},{"name":"SQL","optional":false}],"status":"live","first_seen_at":"2026-10-19T09:49:12Z","employer_posted_date":"2026-10-19","last_verified_at":"2026-10-20T04:05:26Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"Are you interested in joining one of Europe's fastest growing companies? Do you want to impact the wellbeing of millions of users?\nIf yes, join us to make an impact in a fast-paced and dynamic environment where you’ll play a key role in driving financial accountability, supporting strategic decisions, and enabling sustainable growth.\nEpassi’s purpose is to boost everyday well-being. We are a leading provider of employee benefit solutions across Europe. We were established in Finland in 2007, and in 2008 we were the first company to launch a mobile-payable employee benefit payment solution in Europe. Since then, we have consistently grown, diversifying our products and introducing our services into new markets.\nEpassi has been awarded by the Financial Times as one of the fastest-growing companies in Europe on multiple occasions.\nWe are currently hiringPython Backend Developer\nYour mission at Epassi\nYour mission as a Python Backend Developer is to ensure our platform and processes scale efficiently for the upcoming customer migration. You will identify and mitigate scaling issues, map existing customer configurations to our system equivalents, and help build automation that supports reliable, high-performance migrations and long-term platform growth.\nYour responsibilities will be\nProactively map components known to be susceptible to scaling issues (e.g., slowness, lack of async processing) and propose effective improvements.\nAnalyse customer settings including employees, invoicing, and integrations - and map them to new equivalents to inform automation strategies.\nOwn the design and implementation of the self-service customer portal backend (REST API).\nMaintain and improve our cloud infrastructure, including Kubernetes EKS and PostgreSQL RDS.\nDevelop, optimise, and maintain CI/CD pipelines using GitHub Actions and related tools.\nIntegrate with third-party HR APIs to provide seamless data flows.\nWork closely with Product Owners to define, scope, and deliver high-impact features.\nSupport internal stakeholders (Customer Success, Operations) to ensure smooth workflows.\nExpand and improve our existing transactional system.\nWhat you’ll be doing (daily)\nDesigning, implementing, and maintaining backend services and REST APIs that support scale and performance.\nMonitoring and improving infrastructure reliability, performance, and scalability.\nBuilding and managing CI/CD pipelines to streamline development and deployment.\nTroubleshooting and resolving technical challenges proactively.\nCollaborating with engineering and product teams to deliver high-quality features.\nWhat you should bring\n5+ years of professional Python experience working with complex codebases.\nHands-on experience with Python web frameworks (FastAPI, Django, or Flask).\nStrong knowledge of AWS services, Kubernetes, and PostgreSQL.\nSolid understanding of relational databases and SQL query optimization.\nExperience working with CI/CD pipelines and tooling (e.g., GitHub Actions, CircleCI, GitLab CI).\nStrong testing mindset with experience in testing frameworks such as pytest.\nA proactive, hands-on approach to problem-solving.\nExperience taking projects from design to delivery, including architectural decision-making.\nYour track record\nSuccessfully delivered end-to-end backend projects.\nActively improved engineering standards and practices in past roles.\nKnown for taking initiative and improving existing systems where possible.\nComfortable working independently and collaborating within a team.\nYour language profile\nGood command of written and spoken English.\nWhy you should work with us\nImpact at scale: You’ll work on a mission-critical project that directly contributes to successful customer migrations and platform growth.\nGrowth & development: Take ownership, drive improvements, and grow your skills in a supportive environment.\nFlexible work model: Hybrid/remote setup with a collaborative, balanced work culture.\nModern tech stack: Work with cloud-native infrastructure, CI/CD automation, and 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