{"id":4140639,"url":"https://alion.io/job/seren-it-services-tech-lead-senior-backend-developer-python","title":"Tech Lead - Senior Backend Developer (Python)","company":{"id":4536056,"name":"Seren IT Services","domain":"serenitservices.com","url":"https://alion.io/company/seren-it-services","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Backend","role_family":"Backend","seniority":"lead","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Colombo, Sri Lanka"],"countries":["LK"],"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":"Amazon EC2","optional":false},{"name":"Amazon S3","optional":false},{"name":"AWS","optional":false},{"name":"Docker","optional":false},{"name":"Linux","optional":false},{"name":"MySQL","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Python","optional":false},{"name":"Rest API","optional":false},{"name":"Unix","optional":false},{"name":"CI/CD","optional":true},{"name":"FastAPI","optional":true},{"name":"Flask","optional":true},{"name":"Nginx","optional":true},{"name":"RabbitMQ","optional":true},{"name":"Redis","optional":true}],"status":"live","first_seen_at":"2026-11-11T18:30:00Z","employer_posted_date":null,"last_verified_at":"2026-11-11T18:30:00Z","board_verified":false,"closed_at":null,"days_open":0,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":0},"description":"Tech Lead\n\nSenior Backend\nDeveloper (Python)\n\nWe are seeking a Senior Python Backend Developer to contribute to the development and enhancement of core backend services within a modern microservices-based platform and also to lead a team of highly talented software engineers.\n\nThis role involves building backend APIs, integrating with\n\ninternal services, optimizing system performance, and G LG () collaborating closely with the Senior Backend Engineer on\n\nfeature development and architecture improvements. eee\n\nFamiliarity with UNIX/Linux environments is required.\n\nSeren IT Services is a Start-up\n\nRequired Skills: technology solutions provider\n; headquartered in Washington D.C.,\n2-4 years of professional Python United States. We specialize in\n\ndevelopment experience.\nStrong understanding of REST API development and backend service\n\ndelivering state-of-the-art IT products (SAS &\nApplications) and services\n\ndesign designed to address the evolvi\nExperience with MySQL or PostgreSQL esigned to adaress the evolving databases. challenges of modern businesses.\n\nHands-on experience with Docker.\n\nFamiliarity with UNIX/Linux environments.\n\ne« Experience working with AWS services\n\n(EC2,S3, RDS). ; , KINDLY SUBMIT YOUR CV\nGood understanding of microservices\n\narchitecture. TOGETHER WITH THE NAMES\nAbility to write clean, maintainable, and\n\ntestable code. AND CONTACT INFORMATION\n\nOF TWO NON-RELATED\nREFEREES TO:\n\nPreferred Skills:\n\nExperience with FastAPI or Flask.\n« Knowledge of Nginx or reverse-proxy configuration.\n¢« Basic understanding of message queues (Redis, RabbitMQ). ° A\nExposure to CI/CD pipelines.\nExperience working in agile, fast-paced, or startup environments.\n\nSEREN IT SERVICES IS AN EQUAL OPPORTUNITY EMPLOYER. WE ARE COMMITTED TO CREATING AN INCLUSIVE ENVIRONMENT\nFOR ALL EMPLOYEES. ALL APPLICATIONS WILL BE HANDLED CONFIDENTIALLY, AND ONLY SHORTLISTED CANDIDATES WILL BE\nCONTACTED. SEREN IT SERVICES DOES NOT CHARGE ANY RECRUITMENT OR PROCESSING FEES AT ANY STAGE, AND RESERVES\nTHE RIGHT TO AMEND OR TERMINATE THIS VACANCY WITHOUT PRIOR NOTICE.\n\nEmployment: Full Time, Permanent, Onsite\nClosing date: 26 Nov 2026\nJob ref: 1570397","description_format":"text","description_chars":2156,"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":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-11-12T05:11:30Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":29,"reasons":["seen:0","win:early"],"computed_at":"2026-11-12T06:38:29Z"},"pay":null,"html_url":"https://alion.io/job/seren-it-services-tech-lead-senior-backend-developer-python","json_url":"https://alion.io/job/seren-it-services-tech-lead-senior-backend-developer-python.json","meta":{"generated_at":"2026-11-12T06:38:29Z","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":13286,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-13T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"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":4536056},"rest":"https://alion.io/mcp/rest/get_company?id=4536056"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fseren-it-services-tech-lead-senior-backend-developer-python"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":2,"usd":0.2},"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%2Fseren-it-services-tech-lead-senior-backend-developer-python"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"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%2Fseren-it-services-tech-lead-senior-backend-developer-python"},{"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/seren-it-services-tech-lead-senior-backend-developer-python\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fseren-it-services-tech-lead-senior-backend-developer-python"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":4140639}},{"tool":"search_jobs","arguments":{"company":"serenitservices.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":4140639},"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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